/* ===================================
   PHBS MBA 2022 黑客松官网
   视觉方案：深蓝 #0A1628 + 金色 #C9A84C + 白色 #FFFFFF
   =================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --dark-blue:    #0A1628;
  --mid-blue:     #0E2040;
  --light-blue:   #162B4D;
  --gold:         #C9A84C;
  --gold-light:   #E4C97A;
  --white:        #FFFFFF;
  --gray:         #A0ABBF;
  --gray-light:   #D0D8E8;
  --border:       rgba(201,168,76,0.3);
  --font-cn:      'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition:   0.35s cubic-bezier(.4,0,.2,1);
  --shadow-gold:  0 4px 24px rgba(201,168,76,0.18);
  --radius:       8px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--dark-blue);
  color: var(--white);
  font-family: var(--font-cn);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  text-align: center;
  margin-bottom: 16px;
}

.section-title span { color: var(--gold); }

.section-subtitle {
  text-align: center;
  color: var(--gray);
  font-size: 1.05rem;
  margin-bottom: 56px;
}

.gold-line {
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  margin: 16px auto 0;
  border-radius: 2px;
}

.section-pad { padding: 100px 0; }

.btn-gold {
  display: inline-block;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--dark-blue);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius);
  border: none;
  transition: var(--transition);
  letter-spacing: 0.05em;
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
  filter: brightness(1.1);
}

.btn-outline {
  display: inline-block;
  padding: 12px 32px;
  border: 1.5px solid var(--gold);
  color: var(--gold);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  background: transparent;
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--gold);
  color: var(--dark-blue);
}

/* ---------- 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ===========================================
   导航栏
   =========================================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(10, 22, 40, 0.96);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 24px rgba(0,0,0,0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}
.nav-logo-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.3;
}
.nav-logo-text span { color: var(--gold); font-size: 0.8rem; display: block; font-weight: 400; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 0.95rem;
  color: var(--gray-light);
  border-radius: 6px;
  transition: var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px; height: 2px;
  background: var(--gold);
  transition: transform var(--transition);
  border-radius: 1px;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { transform: translateX(-50%) scaleX(1); }

.nav-cta {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--dark-blue) !important;
  font-weight: 700;
  border-radius: 6px;
  font-size: 0.92rem;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { filter: brightness(1.1); color: var(--dark-blue) !important; }

.nav-login-btn {
  padding: 8px 18px;
  border: 1.5px solid var(--border);
  color: var(--gold) !important;
  border-radius: 6px;
  font-size: 0.92rem;
  transition: var(--transition);
}
.nav-login-btn:hover { border-color: var(--gold); background: rgba(201,168,76,0.08); }
.nav-login-btn::after { display: none !important; }

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端导航 */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--dark-blue);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--gray-light);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  width: 200px;
  text-align: center;
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--gold); }

/* ===========================================
   Hero 轮播
   =========================================== */
#hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides { position: relative; width: 100%; height: 100%; }

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.85) 0%, rgba(10,22,40,0.5) 60%, rgba(14,32,64,0.7) 100%);
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 0 8vw;
  max-width: 900px;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  border-radius: 4px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 12px;
}
.hero-title .gold { color: var(--gold); }

.hero-date { font-size: 1.1rem; color: var(--gray-light); margin-bottom: 20px; letter-spacing: 0.05em; }

.hero-desc { font-size: 1.1rem; color: var(--gray-light); max-width: 520px; margin-bottom: 40px; line-height: 1.8; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 指示器 */
.hero-indicators {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}
.hero-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.hero-dot.active { background: var(--gold); transform: scale(1.3); }

/* Hero 箭头 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(201,168,76,0.15);
  border: 1px solid var(--border);
  color: var(--gold);
  width: 48px; height: 48px;
  border-radius: 50%;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.hero-arrow:hover { background: rgba(201,168,76,0.3); }
.hero-arrow.prev { left: 32px; }
.hero-arrow.next { right: 32px; }

/* ===========================================
   关于活动
   =========================================== */
#about { background: var(--dark-blue); position: relative; overflow: hidden; }
#about::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }

.about-img-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}
.about-img-wrap img { width: 100%; height: 480px; object-fit: cover; border-radius: 12px; }
.about-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  border: 1.5px solid var(--border);
}

.about-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.about-text h2 span { color: var(--gold); }
.about-text .gold-line { margin: 0 0 24px; }
.about-text p { color: var(--gray-light); font-size: 1.02rem; line-height: 1.9; margin-bottom: 16px; }

/* ===========================================
   为什么举办
   =========================================== */
#why { background: var(--mid-blue); }

.why-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.why-card {
  background: var(--light-blue);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.why-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

.why-icon { font-size: 2.4rem; margin-bottom: 20px; display: block; }
.why-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; color: var(--gold); }
.why-card p { color: var(--gray-light); font-size: 0.95rem; line-height: 1.8; }

/* ===========================================
   活动亮点（数字区）
   =========================================== */
#highlights { background: var(--dark-blue); position: relative; }

.highlight-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 80px;
}

.number-item { background: var(--dark-blue); padding: 48px 24px; text-align: center; }
.number-item .num {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--gold);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}
.number-item .num .unit { font-size: 0.5em; font-weight: 600; }
.number-item .label { color: var(--gray); font-size: 0.95rem; }

/* ===========================================
   议程
   =========================================== */
#schedule { background: var(--mid-blue); }

.schedule-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.schedule-tab {
  padding: 12px 40px;
  background: transparent;
  border: none;
  color: var(--gray);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  font-family: inherit;
}
.schedule-tab.active { background: var(--gold); color: var(--dark-blue); }
.schedule-tab:not(.active):hover { color: var(--gold); }

.schedule-panel { display: none; }
.schedule-panel.active { display: block; }

.timeline { position: relative; padding-left: 40px; max-width: 700px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 14px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--border) 100%);
}

.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -32px; top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--dark-blue);
  box-shadow: 0 0 0 2px var(--gold);
}

.timeline-time { font-size: 0.85rem; color: var(--gold); font-weight: 600; margin-bottom: 4px; letter-spacing: 0.05em; }
.timeline-content h4 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.timeline-content p { font-size: 0.9rem; color: var(--gray); }

/* ===========================================
   文创展示
   =========================================== */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.culture-card {
  background: var(--light-blue);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.culture-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
  border-color: var(--gold);
}
.culture-card img {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 12px;
  margin: 0 auto 20px;
  border: 1px solid var(--border);
}
.culture-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}
.culture-desc {
  font-size: 0.88rem;
  color: var(--gray);
}

.role-tag {
  background: var(--light-blue);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 0.88rem;
  color: var(--gray-light);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.role-tag::before { content: '▸'; color: var(--gold); }

/* ===========================================
   志愿者招募
   =========================================== */
#volunteer { background: var(--mid-blue); position: relative; overflow: hidden; }
#volunteer::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(201,168,76,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.volunteer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

.volunteer-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.volunteer-text h2 span { color: var(--gold); }
.volunteer-text .gold-line { margin: 0 0 24px; }

.volunteer-text .deadline {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(201,168,76,0.12);
  border: 1px solid var(--gold);
  border-radius: 4px;
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 28px;
}

.volunteer-perks { margin-bottom: 32px; }
.perk-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 16px; }
.perk-icon {
  width: 36px; height: 36px;
  background: rgba(201,168,76,0.12);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.perk-text h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 2px; }
.perk-text p { font-size: 0.88rem; color: var(--gray); }

.volunteer-roles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 32px; }

.volunteer-text > p:last-child { font-size: 0.85rem; color: var(--gray-light); }

.volunteer-qr-side { display: flex; flex-direction: column; align-items: center; gap: 20px; }

.qr-card {
  background: var(--light-blue);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  width: 100%;
  max-width: 320px;
}
.qr-card img {
  width: 200px; height: 200px;
  margin: 0 auto 16px;
  border-radius: 8px;
  border: 2px solid var(--border);
}
.qr-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.qr-card p { font-size: 0.85rem; color: var(--gray); }

.qr-deadline-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 12px;
  background: rgba(201,168,76,0.15);
  border: 1px solid var(--gold);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--gold);
  font-weight: 600;
}

/* ===========================================
   关注我们
   =========================================== */
#follow { background: var(--dark-blue); }

.follow-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  background: var(--mid-blue);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 64px;
  max-width: 900px;
  margin: 0 auto;
}
.follow-text h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.follow-text h2 span { color: var(--gold); }
.follow-text p { color: var(--gray); font-size: 0.95rem; margin-bottom: 8px; }
.follow-handle { font-size: 1.1rem; font-weight: 700; color: var(--gold); letter-spacing: 0.05em; }
.follow-qr img { width: 160px; height: 160px; border-radius: 12px; border: 2px solid var(--border); }
.follow-qr p { text-align: center; font-size: 0.8rem; color: var(--gray); margin-top: 10px; }

/* ===========================================
   Footer
   =========================================== */
#footer { background: rgba(0,0,0,0.4); border-top: 1px solid var(--border); padding: 40px 0; text-align: center; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.footer-logo { height: 36px; opacity: 0.7; }
.footer-text { font-size: 0.85rem; color: var(--gray); }
.footer-gold { font-size: 0.85rem; color: var(--gold); opacity: 0.8; letter-spacing: 0.08em; }

/* ===========================================
   登录 Modal
   =========================================== */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}
.modal-backdrop.open { display: flex; }

.modal-box {
  background: var(--mid-blue);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 16px; right: 20px;
  background: none;
  border: none;
  color: var(--gray);
  font-size: 1.4rem;
  line-height: 1;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--white); }

.modal-logo { text-align: center; margin-bottom: 32px; }
.modal-logo img { height: 48px; margin: 0 auto 12px; }
.modal-logo h3 { font-size: 1.1rem; font-weight: 700; }
.modal-logo p { font-size: 0.85rem; color: var(--gray); margin-top: 4px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.88rem; color: var(--gray-light); margin-bottom: 8px; font-weight: 500; }
.form-group input {
  width: 100%;
  background: var(--dark-blue);
  border: 1.5px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--white);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus { border-color: var(--gold); }
.form-group input::placeholder { color: rgba(255,255,255,0.25); }

.code-row { display: flex; gap: 10px; }
.code-row input { flex: 1; }

.btn-send-code {
  padding: 0 16px;
  background: transparent;
  border: 1.5px solid var(--gold);
  color: var(--gold);
  border-radius: 8px;
  font-size: 0.85rem;
  font-family: inherit;
  white-space: nowrap;
  transition: var(--transition);
  min-width: 100px;
}
.btn-send-code:hover:not(:disabled) { background: rgba(201,168,76,0.12); }
.btn-send-code:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-login {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--dark-blue);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 8px;
  border: none;
  transition: var(--transition);
  font-family: inherit;
  margin-top: 8px;
}
.btn-login:hover { filter: brightness(1.1); transform: translateY(-1px); }

.login-tip { text-align: center; font-size: 0.82rem; color: var(--gray); margin-top: 16px; }

.form-msg { font-size: 0.88rem; margin-top: 8px; min-height: 20px; }
.form-msg.error { color: #ff6b6b; }
.form-msg.success { color: #69db7c; }

/* 图形验证码 */
.captcha-row { display: flex; gap: 8px; align-items: center; }
.captcha-row input { flex: 1; }
#captcha-canvas { border-radius: 6px; cursor: pointer; flex-shrink: 0; border: 1px solid var(--border); }
.captcha-hint { font-size: 0.75rem; color: var(--gray); margin-top: 4px; display: block; }

/* 用户已登录状态 */
.user-badge {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(201,168,76,0.1);
  border: 1px solid var(--border);
  border-radius: 20px;
}
.user-badge.visible { display: flex; }
.user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--dark-blue);
}
.user-name { font-size: 0.88rem; color: var(--gray-light); }
.btn-logout { background: none; border: none; color: var(--gray); font-size: 0.8rem; cursor: pointer; padding: 0 4px; }
.btn-logout:hover { color: var(--gold); }

/* ===========================================
   响应式
   =========================================== */
@media (max-width: 1024px) {
  .about-grid { gap: 40px; }
  .follow-card { gap: 48px; padding: 48px; }
  .awards-grid { gap: 16px; }
}

@media (max-width: 768px) {
  .section-pad { padding: 72px 0; }
  .nav-links, .nav-login-btn { display: none; }
  .hamburger { display: flex; }
  .hero-content { padding: 0 24px; }
  .hero-arrow { display: none; }
  .about-grid, .volunteer-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img-wrap img { height: 280px; }
  .why-cards { grid-template-columns: 1fr; }
  .highlight-numbers { grid-template-columns: repeat(2, 1fr); }
  .awards-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto 32px; }
  .awards-special { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .volunteer-roles { grid-template-columns: 1fr; }
  .follow-card { flex-direction: column; gap: 32px; padding: 40px 24px; text-align: center; }
  .modal-box { padding: 40px 24px; margin: 16px; }
}

@media (max-width: 480px) {
  .highlight-numbers { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-gold, .hero-actions .btn-outline { text-align: center; }
}