/* ========== 变量定义 ========== */
:root {
  --ink-black: #1a1a1a;
  --ink-gray: #3a3a3a;
  --ink-light: #6a6a6a;
  --paper-bg: #f5f1e8;
  --paper-dark: #e8e2d5;
  --seal-red: #c41e3a;
  --seal-red-light: #e63950;
  --bamboo-green: #2d5a3d;
  --bamboo-light: #4a7c59;
  --gold: #b8860b;
  --gold-light: #daa520;
  --wine-red: #722f37;
}

* { box-sizing: border-box; }

body {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  background: var(--paper-bg);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  margin: 0;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    radial-gradient(ellipse at 20% 20%, rgba(196, 30, 58, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(45, 90, 61, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ========== 导航栏 ========== */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(245, 241, 232, 0.98) 0%, rgba(245, 241, 232, 0.95) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(26, 26, 26, 0.1);
  transition: all 0.3s ease;
}

.nav-bar.scrolled { box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1); }

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; gap: 0.75rem; }

.nav-seal {
  width: 36px;
  height: 36px;
  border: 2px solid var(--seal-red);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--seal-red);
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 16px;
  transform: rotate(-5deg);
}

.nav-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.5rem;
  color: var(--ink-black);
  letter-spacing: 0.1em;
}

.nav-links { display: flex; gap: 2rem; margin-right: auto; margin-left: 2rem; }

.nav-link {
  color: var(--ink-gray);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: color 0.3s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--seal-red);
  transition: width 0.3s;
}

.nav-link:hover { color: var(--seal-red); }
.nav-link:hover::after { width: 100%; }

.nav-cta {
  background: linear-gradient(135deg, var(--seal-red) 0%, var(--wine-red) 100%);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--seal-red);
  border-radius: 4px;
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
  background: rgba(196, 30, 58, 0.1);
  transform: rotate(5deg);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--seal-red);
  margin: 5px 0;
  transition: all 0.3s ease;
  position: relative;
}

/* 菜单按钮动画 */
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ========== Hero区域 ========== */
.hero-section {
  padding: 4rem 1.5rem 0.5rem;
  text-align: center;
  position: relative;
  background: linear-gradient(180deg, var(--paper-bg) 0%, var(--paper-dark) 100%);
}

.hero-seal {
  width: 60px;
  height: 60px;
  border: 3px solid var(--seal-red);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--seal-red);
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 24px;
  transform: rotate(-12deg);
  box-shadow: 0 4px 20px rgba(196, 30, 58, 0.15);
  position: absolute;
  right: -80px;
  top: 50%;
  margin-top: -30px;
}

.hero-title-wrap {
  display: inline-block;
  position: relative;
}

@keyframes sealFloat {
  0%, 100% { transform: rotate(-12deg) scale(1); }
  50% { transform: rotate(-12deg) scale(1.05); }
}

.hero-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: clamp(2.5rem, 6vw, 4rem);
  color: var(--ink-black);
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-divider {
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 1.5rem auto;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--ink-gray);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--ink-light);
  letter-spacing: 0.1em;
}

/* ========== 主内容区域 ========== */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}

/* ========== 统计卡片 ========== */
.stats-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border: 1px solid rgba(26, 26, 26, 0.1);
  padding: 1.25rem;
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--gold);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.stat-value {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 2rem;
  color: var(--seal-red);
  line-height: 1.2;
  font-weight: 600;
}

.stat-value.green { color: var(--bamboo-green); }
.stat-value.gold { color: var(--gold); }

.stat-label {
  font-size: 0.85rem;
  color: var(--ink-light);
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

/* ========== 打赏列表区 ========== */
.donations-section {
  background: white;
  border: 1px solid rgba(26, 26, 26, 0.1);
  padding: 1.5rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

.section-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.5rem;
  color: var(--ink-black);
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.section-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--seal-red);
}

.filter-tabs { display: flex; gap: 0.5rem; }

.filter-tab {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  color: var(--ink-light);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.05em;
}

.filter-tab:hover,
.filter-tab.active {
  color: var(--seal-red);
  border-color: var(--seal-red);
  background: rgba(196, 30, 58, 0.05);
}

/* ========== 打赏卡片 ========== */
.donation-card {
  padding: 1.25rem;
  border: 1px solid rgba(26, 26, 26, 0.06);
  background: linear-gradient(135deg, #fefefe 0%, #faf8f5 100%);
  margin-bottom: 1rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.donation-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transition: transform 0.3s;
}

.donation-card:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.donation-card:hover::before { transform: scaleY(1); }

.donation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.donation-header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.screenshot-icon {
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.6;
  transition: all 0.3s;
  padding: 0.25rem;
}

.screenshot-icon:hover {
  opacity: 1;
  transform: scale(1.2);
}

.donation-name {
  font-weight: 600;
  color: var(--ink-black);
  font-size: 1rem;
}

.donation-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid;
  letter-spacing: 0.05em;
}

.donation-badge.cash {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(184, 134, 11, 0.05);
}

.donation-badge.goods {
  color: var(--bamboo-green);
  border-color: var(--bamboo-green);
  background: rgba(45, 90, 61, 0.05);
}

.donation-amount {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.5rem;
  color: var(--seal-red);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.donation-amount.goods {
  color: var(--bamboo-green);
  font-size: 1.25rem;
}

.donation-message {
  font-size: 0.9rem;
  color: var(--ink-gray);
  font-style: italic;
  padding: 0.75rem;
  background: rgba(26, 26, 26, 0.02);
  border-left: 2px solid rgba(26, 26, 26, 0.1);
  margin: 0.75rem 0;
}

.donation-time {
  font-size: 0.8rem;
  color: var(--ink-light);
}

.donation-screenshot { margin-top: 0.75rem; }

.donation-screenshot img {
  max-width: 180px;
  max-height: 120px;
  object-fit: cover;
  border: 1px solid rgba(26, 26, 26, 0.1);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.donation-screenshot img:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-color: var(--seal-red);
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(26, 26, 26, 0.08);
}

.page-btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--ink-gray);
  background: transparent;
  border: 1px solid rgba(26, 26, 26, 0.15);
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.05em;
}

.page-btn:hover:not(:disabled) {
  color: var(--seal-red);
  border-color: var(--seal-red);
}

.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.page-btn.active {
  background: var(--seal-red);
  color: white;
  border-color: var(--seal-red);
}

.page-ellipsis { color: var(--ink-light); padding: 0 0.5rem; }

/* ========== 侧边栏 ========== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 5rem;
  height: fit-content;
}

.sidebar-card {
  background: white;
  border: 1px solid rgba(26, 26, 26, 0.1);
  padding: 1.5rem;
}

.sidebar-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.25rem;
  color: var(--ink-black);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-title::before {
  content: '';
  width: 3px;
  height: 16px;
  background: var(--seal-red);
}

/* ========== 打赏入口 ========== */
.sponsor-entrance {
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
}

.sponsor-entrance:hover { transform: translateY(-4px); }

.sponsor-icon {
  width: 180px;
  height: auto;
  margin: 0 auto 1rem;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s;
}

.sponsor-entrance:hover .sponsor-icon { transform: scale(1.1); }

.sponsor-text {
  font-size: 0.95rem;
  color: var(--ink-gray);
  letter-spacing: 0.1em;
}

.sponsor-hint {
  font-size: 0.8rem;
  color: var(--ink-light);
  margin-top: 0.5rem;
}

/* ========== 排行榜 ========== */
.rank-list { display: flex; flex-direction: column; gap: 0.75rem; }

.rank-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: linear-gradient(135deg, #fefefe 0%, #faf8f5 100%);
  border: 1px solid rgba(26, 26, 26, 0.05);
  transition: all 0.3s;
}

.rank-item:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.rank-num {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50%;
}

.rank-num.top1 { background: linear-gradient(135deg, #ffd700, #ffb700); color: white; }
.rank-num.top2 { background: linear-gradient(135deg, #c0c0c0, #a0a0a0); color: white; }
.rank-num.top3 { background: linear-gradient(135deg, #cd7f32, #b87333); color: white; }
.rank-num.normal { background: rgba(26, 26, 26, 0.08); color: var(--ink-gray); }

.rank-info { flex: 1; }
.rank-name { font-size: 0.9rem; color: var(--ink-black); }
.rank-count { font-size: 0.75rem; color: var(--ink-light); margin-top: 0.2rem; }
.rank-amount { font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif; font-size: 1.1rem; color: var(--seal-red); font-weight: 600; }

/* ========== 公告栏 ========== */
.notice-content { font-size: 0.9rem; color: var(--ink-gray); line-height: 1.8; }

.notice-item {
  padding: 0.5rem 0;
  border-bottom: 1px dashed rgba(26, 26, 26, 0.08);
}

.notice-item:last-child { border-bottom: none; }

.notice-date { font-size: 0.75rem; color: var(--ink-light); margin-bottom: 0.25rem; }

.notice-more {
  padding: 0.75rem 0 0.5rem;
  text-align: center;
  border-top: 1px dashed rgba(26, 26, 26, 0.08);
  margin-top: 0.5rem;
}

.notice-more-text {
  font-size: 0.8rem;
  color: var(--ink-light);
  margin-bottom: 0.25rem;
}

.notice-more-hint {
  font-size: 0.7rem;
  color: var(--ink-light);
  opacity: 0.7;
  font-style: italic;
}

/* ========== 二维码弹窗 ========== */
.qr-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s;
}

.qr-modal.active { display: flex; opacity: 1; }

.qr-modal-content {
  background: var(--paper-bg);
  padding: 2rem;
  max-width: 500px;
  width: 100%;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s;
  border: 2px solid var(--ink-black);
}

.qr-modal.active .qr-modal-content { transform: scale(1); }

.qr-modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 32px;
  height: 32px;
  background: none;
  border: 1px solid var(--ink-light);
  font-size: 1.25rem;
  color: var(--ink-gray);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.qr-modal-close:hover { color: var(--seal-red); border-color: var(--seal-red); }

.qr-modal-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.5rem;
  color: var(--ink-black);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.qr-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }

.qr-card {
  background: white;
  border: 1px solid rgba(26, 26, 26, 0.1);
  padding: 1rem;
  transition: all 0.3s;
}

.qr-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.qr-card img { width: 100%; max-width: 160px; height: auto; margin: 0 auto; display: block; }

.qr-card-title { margin-top: 0.75rem; font-size: 0.95rem; color: var(--ink-black); letter-spacing: 0.1em; }

.qr-modal-hint { margin-top: 1.5rem; font-size: 0.85rem; color: var(--ink-light); }

/* ========== 页脚 ========== */
.footer {
  background: var(--ink-black);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 1.5rem 2rem;
  margin-top: 3rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

.footer-brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }

.footer-seal {
  width: 40px;
  height: 40px;
  border: 2px solid var(--seal-red);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--seal-red);
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 18px;
  transform: rotate(-5deg);
}

.footer-title {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.5rem;
  color: white;
  letter-spacing: 0.1em;
}

.footer-desc { font-size: 0.9rem; line-height: 1.8; color: rgba(255, 255, 255, 0.5); }

.footer-heading { font-size: 1rem; color: white; margin-bottom: 1rem; letter-spacing: 0.1em; }

.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }

.footer-link {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-link:hover { color: var(--seal-red-light); }

.footer-wechat {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

.footer-wechat:hover {
  color: #07c160;
}

.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-quote {
  font-family: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "Open Sans", "Hiragino Sans GB", "WenQuanYi Micro Hei", Arial, Verdana, Tahoma, sans-serif;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.2em;
}

/* ========== 空状态 & 加载 ========== */
.empty-state { text-align: center; padding: 3rem 1.5rem; color: var(--ink-light); }
.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-text { font-size: 1rem; letter-spacing: 0.1em; }
.empty-hint { font-size: 0.85rem; margin-top: 0.5rem; }

.loading { display: flex; justify-content: center; padding: 2rem; }
.loading-dots { display: flex; gap: 0.5rem; }

.loading-dot {
  width: 8px;
  height: 8px;
  background: var(--seal-red);
  border-radius: 50%;
  animation: loadingBounce 1.4s ease-in-out infinite both;
}

.loading-dot:nth-child(1) { animation-delay: -0.32s; }
.loading-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes loadingBounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* ========== 动画 ========== */
.fade-in {
  animation: fadeIn 0.5s ease-out forwards;
  opacity: 0;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .main-content { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
}

@media (max-width: 768px) {
  .main-content {
    padding: 3rem 1rem;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    margin: 0;
    padding: 1.5rem 0;
    background: linear-gradient(180deg, var(--paper-bg) 0%, var(--paper-dark) 100%);
    flex-direction: column;
    gap: 0.875rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    z-index: 100;
    transition: all 0.4s ease;
    border-top: 2px solid var(--seal-red);
    border-radius: 0;
    animation: menuSlideIn 0.4s ease;
  }
  
  @keyframes menuSlideIn {
    from {
      opacity: 0;
      transform: translateY(-20px) scaleY(0.9);
    }
    to {
      opacity: 1;
      transform: translateY(0) scaleY(1);
    }
  }
  
  .nav-links.mobile-active {
    display: flex;
    animation: menuSlideIn 0.4s ease;
  }
  
  .nav-links .nav-link {
    padding: 0.75rem 1.25rem;
    border-radius: 0;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    text-align: center;
  }
  
  .nav-links .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(196, 30, 58, 0.1), transparent);
    transition: left 0.5s ease;
  }
  
  .nav-links .nav-link:hover {
    background: rgba(196, 30, 58, 0.15);
    transform: translateX(12px);
    border-color: rgba(196, 30, 58, 0.3);
    box-shadow: 2px 2px 8px rgba(196, 30, 58, 0.2);
  }
  
  .nav-links .nav-link:hover::before {
    left: 100%;
  }
  
  .nav-links .nav-link:nth-child(1) {
    animation-delay: 0.1s;
  }
  
  .nav-links .nav-link:nth-child(2) {
    animation-delay: 0.2s;
  }
  
  .nav-links .nav-link:nth-child(3) {
    animation-delay: 0.3s;
  }
  
  .nav-links .nav-link:nth-child(4) {
    animation-delay: 0.4s;
  }
  
  .mobile-menu-btn {
    display: block;
    position: relative;
    z-index: 101;
  }
  
  /* 菜单按钮动画 */
  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
  
  .hero-section { padding: 3.5rem 1rem 0.5rem; }
  .hero-seal { display: none; }
  .hero-title { letter-spacing: 0.15em; }
  .stats-section { grid-template-columns: 1fr; gap: 0.75rem; }
  .stat-card { padding: 1rem; }
  .stat-value { font-size: 1.75rem; }
  .sidebar { grid-template-columns: 1fr; }
  .filter-tabs { flex-wrap: wrap; }
  .footer-content { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
  .footer-brand { justify-content: center; }
  .qr-cards { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .nav-content { padding: 0.5rem 1rem; }
  .nav-title { font-size: 1.25rem; }
  .nav-seal { width: 30px; height: 30px; font-size: 14px; }
  .hero-seal { display: none; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .pagination { flex-wrap: wrap; }
  .page-btn { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
}

/* ========== 图片预览弹窗 ========== */
.image-modal-content {
  background: var(--paper-bg);
  padding: 1rem;
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
  border: 2px solid var(--ink-black);
}

.image-modal-content img {
  max-width: 100%;
  max-height: 80vh;
  display: block;
  margin: 0 auto;
}