/* ============================================
   重庆市乡村振兴服务协会 PC 版展示页面
   现代化、响应式设计 · 主色：乡村振兴绿 + 金
   ============================================ */

/* ==== 基础变量 ==== */
:root {
  --primary: #1B6E3A;
  --primary-dark: #14502c;
  --primary-deep: #0f3d21;
  --primary-light: #e8f5ec;
  --gold: #c9a24b;
  --gold-deep: #a8842f;
  --gold-light: #f7eed9;
  --red: #c41e2b;
  --red-light: #fdecec;
  --text: #2b2b2b;
  --text-secondary: #5f6b64;
  --text-light: #98a39d;
  --bg: #ffffff;
  --bg-light: #f6f9f7;
  --bg-dark: #0e2b1c;
  --border: #e6ede9;
  --shadow: 0 2px 20px rgba(27, 110, 58, 0.08);
  --shadow-hover: 0 10px 32px rgba(27, 110, 58, 0.16);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

/* ==== 全局重置 ==== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==== 导航栏 ==== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 4px rgba(14,43,28,0.06);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 16px rgba(14,43,28,0.12);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(27,110,58,0.3);
  flex-shrink: 0;
}

.logo-texts {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.logo-name {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

.logo-sub {
  font-size: 0.72rem;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-item:hover,
.nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-item.nav-cta {
  margin-left: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 22px;
  padding: 9px 22px;
  font-weight: 500;
  box-shadow: 0 4px 14px rgba(27,110,58,0.28);
}

.nav-item.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(27,110,58,0.36);
}

.menu-toggle {
  display: none;
  font-size: 1.6rem;
  background: none;
  color: var(--text);
  padding: 4px 8px;
}

/* ==== 共用 Section ==== */
.section {
  padding: 84px 0;
}

.section.bg-light {
  background: var(--bg-light);
}

.section.bg-pattern {
  background:
    radial-gradient(circle at 12% 18%, rgba(27,110,58,0.05) 0, transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(201,162,75,0.08) 0, transparent 42%),
    #fbfdfb;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  position: relative;
  display: inline-block;
  letter-spacing: 2px;
}

.section-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  margin: 14px auto 0;
  border-radius: 3px;
}

.section-subtitle {
  color: var(--text-light);
  font-size: 0.92rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 6px;
}

.section-more {
  text-align: center;
  margin-top: 40px;
}

/* ==== 按钮 ==== */
.btn-primary {
  display: inline-block;
  padding: 12px 34px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 26px;
  font-size: 0.98rem;
  font-weight: 500;
  box-shadow: 0 6px 18px rgba(27,110,58,0.26);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(27,110,58,0.34);
}

.btn-outline {
  padding: 11px 34px;
  border: 2px solid var(--primary);
  border-radius: 26px;
  color: var(--primary);
  background: transparent;
  font-size: 0.95rem;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-gold {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fff;
  border-radius: 30px;
  font-size: 1.02rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(201,162,75,0.35);
  transition: var(--transition);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201,162,75,0.45);
}

.btn-ghost {
  display: inline-block;
  padding: 14px 40px;
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
  border-radius: 30px;
  font-size: 1.02rem;
  transition: var(--transition);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ==== Hero / 轮播 ==== */
.hero {
  margin-top: var(--header-height);
  position: relative;
  height: 560px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 55%, var(--primary-dark) 100%);
}

.swiper {
  position: absolute;
  inset: 0;
}

.swiper-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.swiper-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}

.swiper-slide.active {
  opacity: 1;
  z-index: 1;
}

.swiper-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,38,24,0.72) 0%, rgba(11,38,24,0.38) 55%, rgba(11,38,24,0.12) 100%);
}

.swiper-slide.gradient-bg::after {
  background: linear-gradient(135deg, rgba(11,38,24,0.55), rgba(27,110,58,0.25));
}

.slide-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

.slide-content .slide-kicker {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 4px;
  color: var(--gold);
  border: 1px solid rgba(201,162,75,0.55);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  background: rgba(11,38,24,0.3);
}

.slide-content h1 {
  font-size: 2.9rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  text-shadow: 0 2px 14px rgba(0,0,0,0.3);
  max-width: 640px;
}

.slide-content p {
  font-size: 1.18rem;
  color: rgba(255,255,255,0.92);
  margin-top: 16px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.25);
  max-width: 560px;
}

.swiper-slide.has-link {
  cursor: pointer;
}

.swiper-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.swiper-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
}

.swiper-dot.active {
  background: var(--gold);
  transform: scale(1.25);
}

.hero-scroll {
  position: absolute;
  bottom: 80px;
  right: 34px;
  z-index: 10;
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.hero-scroll-line {
  width: 3px;
  height: 10px;
  border-radius: 2px;
  background: #fff;
  animation: scrollHint 1.6s ease-in-out infinite;
}

@keyframes scrollHint {
  0% { opacity: 1; transform: translateY(0); }
  70% { opacity: 0.2; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ==== 数据统计 ==== */
.stats {
  padding: 0;
  margin-top: -58px;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(14,43,28,0.12);
  padding: 28px 20px;
}

.stat-item {
  text-align: center;
  padding: 16px 10px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--border), transparent);
}

.stat-num {
  font-size: 2.9rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 4px;
  letter-spacing: 2px;
}

/* ==== 快捷服务 ==== */
.quick-section {
  padding-top: 64px;
  padding-bottom: 64px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.quick-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 14px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quick-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(27,110,58,0.35);
}

.quick-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  transition: var(--transition);
}

.quick-item:hover .quick-icon-wrap {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 6px 16px rgba(27,110,58,0.22);
}

.quick-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.quick-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.quick-desc {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ==== 关于协会 ==== */
.about-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 40px;
  align-items: start;
}

.about-intro {
  background: #fff;
  border-radius: var(--radius);
  padding: 44px 42px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.about-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
}

.about-icon {
  font-size: 2.6rem;
  margin-bottom: 14px;
}

.about-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
}

.about-text {
  color: var(--text-secondary);
  line-height: 2;
  font-size: 0.97rem;
  max-height: 340px;
  overflow: hidden;
  position: relative;
}

.about-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(180deg, transparent, #fff);
}

.about-text :is(p, div) {
  margin-bottom: 10px;
}

.about-text img {
  display: none;
}

.about-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0 24px;
}

.about-tags .tag {
  padding: 4px 14px;
  border-radius: 18px;
  font-size: 0.82rem;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 500;
}

.about-org {
  background: linear-gradient(160deg, var(--primary-deep) 0%, var(--primary) 100%);
  border-radius: var(--radius);
  padding: 36px 32px;
  color: #fff;
  box-shadow: 0 10px 30px rgba(14,43,28,0.25);
}

.org-title {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 28px;
  letter-spacing: 2px;
}

.org-chart {
  text-align: center;
}

.org-node {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  font-size: 0.95rem;
  font-weight: 600;
  min-width: 120px;
}

.org-node .org-desc {
  display: block;
  font-size: 0.76rem;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  margin-top: 2px;
}

.org-node.org-top {
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  border-color: transparent;
}

.org-connector {
  width: 2px;
  height: 26px;
  background: rgba(255,255,255,0.3);
  margin: 0 auto;
}

.org-second {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.org-depts {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.org-dept {
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.92);
}

.org-advisory {
  margin-top: 10px;
}

.org-advisory .org-node {
  background: rgba(201,162,75,0.16);
  border-color: rgba(201,162,75,0.5);
}

/* ==== 新闻 ==== */
.news-categories {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.cat-btn {
  padding: 8px 24px;
  border-radius: 22px;
  background: #fff;
  color: var(--text-secondary);
  font-size: 0.92rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.cat-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.cat-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(27,110,58,0.25);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.news-card-img {
  height: 176px;
  background: linear-gradient(135deg, #dcefe2 0%, #eef7f0 100%);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
}

.news-card-img .img-fallback {
  font-size: 3rem;
  opacity: 0.55;
}

.news-card-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.news-card-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 500;
}

.tag-association { background: #e4f3e9; color: var(--primary); }
.tag-notice { background: #fff3e0; color: #e65100; }
.tag-industry { background: #e8eefb; color: #2b5fc0; }
.tag-party { background: var(--red-light); color: var(--red); }

.news-card-date {
  font-size: 0.8rem;
  color: var(--text-light);
}

.news-card-title {
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  transition: var(--transition);
}

.news-card:hover .news-card-title {
  color: var(--primary);
}

.news-card-summary {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: auto;
}

/* ==== 专委会 ==== */
.committee-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.committee-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  border-top: 4px solid transparent;
  border: 1px solid var(--border);
  border-top-width: 4px;
  border-top-color: var(--primary);
}

.committee-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.committee-icon {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.1rem;
  margin: 0 auto 18px;
  transition: var(--transition);
}

.committee-card:hover .committee-icon {
  transform: scale(1.08) rotate(-4deg);
}

.committee-card h3 {
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.committee-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.8;
}

.committee-leader {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--gold-deep);
  font-weight: 600;
}

/* ==== 党建 ==== */
.party-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 26px;
  border-radius: 25px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(27,110,58,0.25);
}

.party-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.party-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  border: 1px solid var(--border);
}

.party-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.party-item-date {
  min-width: 86px;
  text-align: center;
  padding: 8px 6px;
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

.party-item-date .day {
  display: block;
  font-size: 1.3rem;
  font-weight: 800;
}

.party-item-info h4 {
  font-size: 0.99rem;
  font-weight: 600;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.party-item:hover .party-item-info h4 {
  color: var(--primary);
}

.party-item-info p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.party-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.party-member-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px 18px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.party-member-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.party-member-avatar {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), #a51622);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 auto 12px;
  box-shadow: 0 4px 12px rgba(196,30,43,0.3);
}

.party-member-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.party-member-card .role {
  font-size: 0.82rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.party-member-card .tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.party-member-card .tag {
  padding: 2px 10px;
  border-radius: 10px;
  font-size: 0.75rem;
  background: var(--primary-light);
  color: var(--primary);
}

/* ==== 志愿服务 ==== */
.volunteer-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.vstat-item {
  text-align: center;
  background: linear-gradient(150deg, #fff 0%, var(--primary-light) 120%);
  border-radius: var(--radius);
  padding: 26px 16px;
  border: 1px solid var(--border);
}

.vstat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.vstat-label {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.volunteer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.volunteer-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.volunteer-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.volunteer-card-img {
  height: 150px;
  background: linear-gradient(135deg, #dcefe2, #f0f7f2);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
}

.volunteer-card-body {
  padding: 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.volunteer-card-status {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.76rem;
  font-weight: 500;
  margin-bottom: 10px;
}

.vstatus-active { background: #e4f3e9; color: var(--primary); }
.vstatus-upcoming { background: #fff3e0; color: #e65100; }
.vstatus-ended { background: #f0f2f1; color: #8a9490; }

.volunteer-card h3 {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.volunteer-card p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.volunteer-meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
  border-top: 1px dashed var(--border);
  padding-top: 12px;
}

/* ==== 活动中心 ==== */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.activity-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary);
  display: flex;
  flex-direction: column;
}

.activity-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.activity-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.activity-card-head .act-icon {
  font-size: 1.9rem;
}

.act-status {
  padding: 3px 14px;
  border-radius: 14px;
  font-size: 0.78rem;
  font-weight: 500;
}

.act-status.enrolling { background: var(--gold-light); color: var(--gold-deep); }
.act-status.upcoming { background: #e4f3e9; color: var(--primary); }
.act-status.ongoing { background: #e8eefb; color: #2b5fc0; }
.act-status.preparing { background: var(--red-light); color: var(--red); }
.act-status.ended { background: #f0f2f1; color: #8a9490; }

.activity-card h3 {
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.activity-card:hover h3 {
  color: var(--primary);
}

.activity-card .act-intro {
  font-size: 0.86rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.act-meta {
  margin-top: auto;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-light);
}

.act-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ==== 会员单位 ==== */
.members-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.member-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.member-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(27,110,58,0.35);
}

.member-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 16px;
  box-shadow: 0 6px 16px rgba(27,110,58,0.28);
}

.member-card h3 {
  font-size: 1.06rem;
  font-weight: 600;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.member-level {
  display: inline-block;
  padding: 3px 14px;
  border-radius: 12px;
  font-size: 0.8rem;
  background: var(--gold-light);
  color: var(--gold-deep);
  font-weight: 500;
}

/* ==== 会员服务 ==== */
.rights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.right-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 34px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.right-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  background: linear-gradient(160deg, #fff 0%, var(--primary-light) 140%);
}

.right-icon {
  font-size: 2.5rem;
  margin-bottom: 14px;
}

.right-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.right-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.7;
}

/* ==== 联系我们 ==== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-content: start;
}

.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.contact-card .cc-icon {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

.contact-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.contact-card .cc-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary-deep);
  word-break: break-all;
}

.contact-card a.cc-value:hover {
  color: var(--gold-deep);
  text-decoration: underline;
}

.contact-list {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 34px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-list h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-light);
  color: var(--primary-deep);
}

.contact-list-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
}

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

.contact-list-item .cli-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-list-item .cli-label {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact-list-item .cli-value {
  font-size: 0.96rem;
  color: var(--text);
}

/* ==== 加入协会 CTA ==== */
.join {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 60%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.join::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 30%, rgba(201,162,75,0.18) 0, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(255,255,255,0.08) 0, transparent 40%);
}

.join-card {
  position: relative;
  text-align: center;
  color: #fff;
  max-width: 720px;
  margin: 0 auto;
}

.join-badge {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 5px;
  color: var(--gold);
  border: 1px solid rgba(201,162,75,0.6);
  padding: 5px 18px;
  border-radius: 22px;
  margin-bottom: 22px;
  background: rgba(11,38,24,0.35);
}

.join-title {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.join-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 34px;
}

.join-actions {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* ==== 页脚 ==== */
.footer {
  background: var(--bg-dark);
  color: #b8c6bd;
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1.2fr 1.2fr 1.4fr;
  gap: 44px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.footer-col p {
  font-size: 0.9rem;
  margin-bottom: 10px;
  line-height: 1.7;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 9px;
  transition: var(--transition);
  color: #b8c6bd;
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.12rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-supervisor {
  display: inline-block;
  margin-top: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 0.84rem;
  color: var(--gold);
}

.footer-bottom {
  text-align: center;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.84rem;
  color: #7d8f85;
}

.footer-bottom p {
  margin-bottom: 4px;
}

/* ==== 弹窗 ==== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,26,17,0.66);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  width: 100%;
  max-width: 760px;
  max-height: 84vh;
  overflow-y: auto;
  position: relative;
  animation: modalIn 0.3s ease;
  box-shadow: 0 24px 60px rgba(0,0,0,0.3);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: sticky;
  top: 14px;
  float: right;
  margin: 14px 14px -52px 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #f2f5f3;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: var(--transition);
  color: var(--text-secondary);
}

.modal-close:hover {
  background: var(--primary);
  color: #fff;
  transform: rotate(90deg);
}

.modal-body {
  padding: 34px;
  clear: both;
}

.modal-body h2 {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--primary-deep);
  line-height: 1.4;
}

.modal-body .meta {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.modal-body .meta .tag-pill {
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 12px;
  border-radius: 12px;
  font-weight: 500;
}

.modal-body .content {
  line-height: 2;
  color: var(--text);
  font-size: 0.95rem;
  word-break: break-word;
}

.modal-body .content :is(p, div, section) {
  margin-bottom: 12px;
}

.modal-body .content img {
  border-radius: var(--radius-sm);
  margin: 16px 0;
  cursor: zoom-in;
}

.modal-body .content h3 {
  color: var(--primary);
  margin: 18px 0 10px;
  font-size: 1.1rem;
}

.modal-body .content ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 12px;
}

.modal-body .content li {
  margin-bottom: 6px;
}

.modal-body .content table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}

.modal-body .content th, .modal-body .content td {
  border: 1px solid var(--border);
  padding: 8px 12px;
}

.members-row {
  margin-top: 20px;
}

.members-row h4 {
  font-size: 1.02rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.members-row .members-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.member-chip {
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.86rem;
}

.member-chip .mc-name {
  font-weight: 600;
  color: var(--primary-deep);
}

.member-chip .mc-role {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* ==== 回到顶部 ==== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: 0 6px 16px rgba(27,110,58,0.35);
  z-index: 999;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
}

/* ==== 图片查看 ==== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.show {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 86vh;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: fixed;
  top: 22px;
  right: 26px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  color: #fff;
  font-size: 1.2rem;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: var(--primary);
}

/* ==== 加载 / 空状态 ==== */
.loading {
  text-align: center;
  padding: 48px;
  color: var(--text-light);
  grid-column: 1 / -1;
}

.loading::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty {
  text-align: center;
  padding: 48px;
  color: var(--text-light);
  font-size: 0.95rem;
  grid-column: 1 / -1;
}

/* ==== 响应式 ==== */
@media (max-width: 1100px) {
  .party-card-grid { grid-template-columns: repeat(3, 1fr); }
  .rights-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .committee-grid { grid-template-columns: repeat(2, 1fr); }
  .volunteer-grid { grid-template-columns: repeat(2, 1fr); }
  .members-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero { height: 500px; }
}

/* Logo + 10 个导航项共需约 1250px 宽度，1280px 以下收起为汉堡菜单 */
@media (max-width: 1280px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    box-shadow: 0 8px 20px rgba(14,43,28,0.14);
    gap: 4px;
  }

  .nav-menu.open {
    display: flex;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .nav-item {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
  }

  .nav-item.nav-cta {
    margin-left: 0;
    text-align: center;
    border-radius: var(--radius-sm);
  }

  .menu-toggle {
    display: block;
  }
}

@media (max-width: 900px) {
  .slide-content h1 { font-size: 2.1rem; }
}

@media (max-width: 768px) {
  .hero { height: 420px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 1.6rem; }

  .stats-grid { padding: 20px 10px; }
  .stat-num { font-size: 2.1rem; }

  .news-grid,
  .committee-grid,
  .volunteer-grid,
  .members-grid,
  .rights-grid,
  .activities-grid,
  .party-card-grid { grid-template-columns: 1fr; }

  .party-content { grid-template-columns: 1fr; }
  .volunteer-stats { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .contact-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .join-title { font-size: 1.5rem; }
  .members-row .members-list { grid-template-columns: 1fr 1fr; }
  .hero-scroll { display: none; }
}

@media (max-width: 480px) {
  .hero { height: 360px; }
  .slide-content h1 { font-size: 1.7rem; }
  .slide-content p { font-size: 0.98rem; }
  .stats { margin-top: -40px; }
  .modal-body { padding: 22px; }
}