/* 深圳狮子会子蒙服务队 - 参考国际狮子会风格 */
:root {
  --color-primary: #5c2d91;
  --color-primary-dark: #3d1d5c;
  --color-primary-light: #7b3db8;
  --color-accent: #e6a800;
  --color-accent-hover: #f0bc20;
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-bg: #f8f6fa;
  --color-white: #fff;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 2px 12px rgba(92, 45, 145, 0.08);
  --radius: 8px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-dark);
}

/* 顶部辅助栏 */
.top-bar {
  background: var(--color-primary-dark);
  color: var(--color-white);
  font-size: 14px;
  padding: 8px 0;
}
.top-bar a {
  color: rgba(255, 255, 255, 0.9);
}
.top-bar a:hover {
  color: var(--color-white);
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.top-bar .logo {
  margin: 0;
  padding: 0;
  background: none;
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.top-bar .logo:hover {
  background: none;
  opacity: 0.9;
}
.top-bar .logo-emblem {
  height: 32px;
  width: auto;
  display: block;
  object-fit: contain;
}
.top-bar .logo-img {
  height: 32px;
  width: auto;
  display: block;
}
.top-bar .logo .logo-img {
  filter: none;
}
.quick-links {
  margin-right: auto;
}
.utility-links {
  display: flex;
  gap: 20px;
}

/* 主导航 */
.main-nav {
  background: var(--color-white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.nav-home a {
  font-weight: 600;
  color: var(--color-primary);
}
.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 28px;
}
.nav-menu a {
  font-weight: 500;
  color: var(--color-text);
}
.nav-menu a:hover {
  color: var(--color-primary);
}

/* 主视觉区（背景图 WebP 优先，picture 在 HTML） */
.hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  overflow: hidden;
}
.hero-bg-picture {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  vertical-align: middle;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, rgba(92, 45, 145, 0.75) 0%, rgba(61, 29, 92, 0.8) 50%, rgba(42, 21, 69, 0.85) 100%);
  pointer-events: none;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.2) 0%, transparent 50%);
  pointer-events: none;
}
.logo-emblem-pic {
  display: block;
  line-height: 0;
}
.logo-emblem-pic img {
  display: block;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 64px 24px;
  text-align: left;
}
.hero-title {
  margin: 0 0 12px;
  font-size: clamp(1rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.25;
  max-width: 100%;
  white-space: nowrap;
}
.hero-subtitle,
.hero-tagline {
  margin: 0;
  font-size: 1.125rem;
  opacity: 0.95;
  font-weight: inherit;
}
.hero-tagline {
  margin-top: 8px;
}

/* 数据区 */
.stats {
  background: var(--color-white);
  padding: 44px 24px;
  box-shadow: var(--shadow);
}
.section-title {
  margin: 0 0 24px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  text-align: center;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}
.stat-item {
  padding: 24px 16px;
  border-radius: var(--radius);
  background: var(--color-bg);
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: inline;
}
.stat-unit {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-left: 2px;
}
.stat-label {
  margin: 8px 0 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* 内容区块 */
.content-blocks {
  padding: 44px 24px;
}
.blocks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.content-block {
  background: var(--color-white);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.content-block h3 {
  margin: 0 0 16px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}
.content-block__body {
  max-height: 7.2em;
  overflow: hidden;
  position: relative;
  transition: max-height 0.35s ease;
}
.content-block__body::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2.5em;
  background: linear-gradient(to bottom, transparent, var(--color-white));
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.content-block.is-expanded .content-block__body {
  max-height: 2000px;
}
.content-block.is-expanded .content-block__body::after {
  opacity: 0;
  pointer-events: none;
}
.content-block p {
  margin: 0 0 20px;
  color: var(--color-text-muted);
}
.content-block__body > p:last-child {
  margin-bottom: 0;
}
.link-arrow,
.content-block__toggle {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  color: var(--color-primary);
  padding: 0;
}
.content-block__toggle:hover {
  color: var(--color-primary-dark);
}
.link-arrow::after,
.content-block__toggle::after {
  content: "→";
}
.content-block.is-expanded .content-block__toggle::after {
  content: "↑";
}
.content-block.is-expanded .content-block__toggle {
  margin-top: 12px;
}
.link-arrow {
  display: inline-flex;
}

/* 内页通用：标题区、列表、返回链接 */
.page-head {
  padding: 24px 24px 20px;
  background: var(--color-white);
  box-shadow: var(--shadow);
}
.page-title {
  margin: 0 0 4px;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}
.page-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.back-link {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--color-primary);
}
.back-link:hover {
  color: var(--color-primary-dark);
}
.resource-list {
  padding: 40px 24px 56px;
}
.resource-list-inner {
  list-style: none;
  margin: 0;
  padding: 0;
}
.resource-item {
  display: block;
  padding: 18px 24px;
  margin-bottom: 12px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--color-text);
  border-left: 4px solid var(--color-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.resource-item:hover {
  border-left-color: var(--color-primary-light);
  box-shadow: 0 4px 16px rgba(92, 45, 145, 0.12);
  color: var(--color-primary-dark);
}
.nav-menu .nav-current {
  color: var(--color-primary);
}

/* 加入我们 */
.join-cta {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-white) 100%);
  padding: 44px 24px;
}
.cta-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.cta-card {
  display: block;
  padding: 28px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--cta-bg) center/cover;
  z-index: 0;
  opacity: 0.2;
}
.cta-card--member::before,
.cta-card--clubs::before {
  opacity: 0.35;
}
.cta-card > * {
  position: relative;
  z-index: 1;
}
.cta-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}
.cta-card-primary {
  background: var(--color-primary);
  color: var(--color-white) !important;
}
.cta-card-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white) !important;
}
.cta-label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 8px;
  opacity: 0.9;
}
.cta-card h4 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

/* 捐款 */
.donate-section {
  padding: 44px 24px;
  background: var(--color-white);
}
.donate-note {
  max-width: 820px;
  margin: 0 auto 32px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.donate-note a {
  color: var(--color-primary);
}
.donate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.donate-card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  border-top: 4px solid var(--color-primary);
}
.donate-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.donate-card p {
  margin: 4px 0;
  font-size: 0.95rem;
}
.donate-remark {
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* 社交媒体 */
.social-section {
  padding: 40px 24px;
  background: var(--color-white);
  text-align: center;
}
.social-intro {
  margin: 0 0 24px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.social-video-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 28px;
}
.social-video-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.social-video-logo {
  height: 28px;
  width: auto;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}
.social-video-name {
  font-weight: 500;
  color: var(--color-text);
}

/* 页脚 */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.9);
  padding: 48px 24px 24px;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.85);
}
.site-footer a:hover {
  color: var(--color-white);
}
.footer-logo {
  display: inline-block;
  margin-bottom: 24px;
}
.footer-logo .logo-img {
  height: 32px;
  width: auto;
  opacity: 0.95;
}
.footer-logo:hover .logo-img {
  opacity: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}
.footer-col h4 {
  margin: 0 0 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: 8px;
}
.footer-address p {
  margin: 0 0 4px;
  font-size: 0.95rem;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.875rem;
  opacity: 0.85;
  text-align: center;
}
.footer-bottom p {
  margin: 0;
}

/* 基础：小屏容器内边距（刘海屏横向安全区） */
@media (max-width: 768px) {
  .container {
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }
}

/* 顶部栏 - 手机端 */
@media (max-width: 768px) {
  .top-bar {
    padding: 10px 0;
    font-size: 13px;
  }
  .top-bar-inner {
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
  }
  .top-bar .logo {
    flex-shrink: 0;
    min-width: 0;
  }
  .top-bar .logo-emblem,
  .top-bar .logo-img {
    height: 28px;
  }
  .quick-links {
    order: 2;
    width: 100%;
    margin-right: 0;
    margin-top: 2px;
  }
  .quick-links a {
    white-space: nowrap;
  }
  .utility-links {
    gap: 10px 14px;
    flex-shrink: 1;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 100%;
  }
  .utility-links a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 2px;
    -webkit-tap-highlight-color: transparent;
  }
}

@media (max-width: 480px) {
  .top-bar .quick-links a {
    font-size: 12px;
  }
  .utility-links {
    font-size: 12px;
    gap: 8px 12px;
  }
}

/* 主导航 - 手机端汉堡菜单 */
.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}
.nav-toggle-label {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: -8px 0 -8px 0;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle-label:hover {
  color: var(--color-primary-dark);
}

@media (max-width: 768px) {
  .main-nav {
    position: relative;
  }
  .nav-inner {
    flex-wrap: wrap;
    padding-top: 12px;
    padding-bottom: 12px;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
    gap: 0;
  }
  .nav-home {
    flex: 1;
  }
  .nav-toggle-label {
    display: flex;
  }
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 12px 0 8px;
    margin: 8px 0 0;
    border-top: 1px solid rgba(92, 45, 145, 0.15);
    font-size: 1rem;
  }
  .nav-toggle:checked ~ .nav-menu {
    display: flex;
  }
  .nav-menu li {
    padding: 0;
  }
  .nav-menu a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav-menu li:last-child a {
    border-bottom: none;
  }
  .hero {
    min-height: 280px;
  }
  .hero-content {
    padding: 40px 16px;
  }
  .hero-subtitle,
  .hero-tagline {
    font-size: 0.95rem;
  }
  .stats {
    padding: 40px 16px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-item {
    padding: 16px 12px;
  }
  .stat-number {
    font-size: 1.75rem;
  }
  .stat-label {
    font-size: 0.85rem;
  }
  .content-blocks {
    padding: 40px 16px;
  }
  .blocks-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .content-block {
    padding: 24px 20px;
  }
  .page-head {
    padding: 20px 16px 16px;
  }
  .page-title {
    font-size: 1.35rem;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
  }
  .back-link {
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 4px 0;
    margin-bottom: 4px;
    -webkit-tap-highlight-color: transparent;
  }
  .page-desc {
    line-height: 1.65;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
  }
  .resource-list,
  .post-section {
    padding: 20px 16px 40px;
  }
  .resource-item {
    padding: 14px 16px;
    font-size: 0.95rem;
  }
  .join-cta {
    padding: 40px 16px;
  }
  .cta-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cta-card {
    padding: 22px 20px;
  }
  .donate-section {
    padding: 40px 16px;
  }
  .donate-note {
    font-size: 0.9rem;
    margin-bottom: 24px;
  }
  .donate-grid {
    grid-template-columns: 1fr;
  }
  .donate-card {
    padding: 18px 16px;
  }
  .social-section {
    padding: 32px 16px;
  }
  .social-video-row {
    flex-direction: column;
    gap: 16px;
  }
  .site-footer {
    padding: 32px 16px 20px;
  }
  .footer-grid {
    gap: 24px;
    margin-bottom: 28px;
  }
}

/* 文章正文 - 手机端阅读优化 */
@media (max-width: 768px) {
  .post-content {
    font-size: 1rem;
    line-height: 1.85;
  }
  .post-section .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* 超小屏（如窄手机） */
@media (max-width: 380px) {
  .nav-inner {
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: max(12px, env(safe-area-inset-left, 0px));
    padding-right: max(12px, env(safe-area-inset-right, 0px));
  }
  .page-title {
    font-size: 1.2rem;
  }
  .section-title {
    font-size: 1.25rem;
  }
}

/* 搜索弹窗 */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 10vh 16px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.search-box {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
}
.search-box input {
  width: 100%;
  padding: 16px 44px 16px 20px;
  font: inherit;
  font-size: 1rem;
  border: none;
  border-bottom: 1px solid #eee;
  outline: none;
  box-sizing: border-box;
}
.search-box input::placeholder {
  color: var(--color-text-muted);
}
.search-results {
  max-height: 60vh;
  overflow-y: auto;
}
.search-results a {
  display: block;
  padding: 12px 20px;
  color: var(--color-text);
  border-bottom: 1px solid #f0f0f0;
  transition: background 0.15s ease;
}
.search-results a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}
.search-results .search-empty {
  padding: 24px 20px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.search-results .search-result-title {
  font-weight: 500;
  color: var(--color-primary-dark);
}
.search-results .search-result-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}
.search-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease;
}
.search-close:hover {
  background: rgba(255, 255, 255, 0.35);
}