/* 艾滋病防治宣传 - 公共样式 */
:root {
  --color-primary: #c41e3a;
  --color-primary-dark: #9a1830;
  --color-primary-light: #fce8ec;
  --color-secondary: #1a5f7a;
  --color-text: #2c3e50;
  --color-text-light: #5a6c7d;
  --color-bg: #f8f9fb;
  --color-white: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #27ae60;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --font-base: 16px;
}

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

html {
  font-size: var(--font-base);
  scroll-behavior: smooth;
}

@media (min-width: 2560px) {
  html {
    font-size: 18px;
  }
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary);
}

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

@media (min-width: 2560px) {
  .container {
    max-width: 1400px;
    padding: 0 40px;
  }
}

/* Header */
.site-header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-icon {
  font-size: 1.5rem;
}

.main-nav {
  display: flex;
  gap: 8px;
}

.main-nav a {
  padding: 8px 18px;
  border-radius: 8px;
  color: var(--color-text);
  font-weight: 500;
  transition: all 0.2s;
}

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

/* Hero */
.hero {
  padding: 48px 0;
  color: var(--color-white);
}

.hero-survey {
  background: linear-gradient(135deg, var(--color-primary) 0%, #e85d75 100%);
}

.hero-knowledge {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #2d8fb5 100%);
}

.hero-services {
  background: linear-gradient(135deg, #6b2d5c 0%, var(--color-primary) 100%);
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 720px;
}

.hero-meta {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.hero-meta span {
  background: rgba(255, 255, 255, 0.2);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
}

/* Survey Form */
.survey-section {
  padding: 40px 24px 60px;
}

.survey-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 32px;
}

.form-part {
  border: none;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.form-part legend {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 0 8px;
  margin-bottom: 20px;
}

.question {
  margin-bottom: 24px;
}

.q-title {
  display: block;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.options label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

.options label:hover {
  background: var(--color-primary-light);
}

.options input[type="radio"],
.options input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.other-input,
.textarea-input {
  width: 100%;
  margin-top: 10px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.other-input:focus,
.textarea-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  padding-top: 16px;
}

.success-message {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 48px 32px;
  text-align: center;
  margin-top: 24px;
}

.success-message h3 {
  color: var(--color-success);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.success-message p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

/* Knowledge Page */
.content-section {
  padding: 40px 24px 60px;
}

.intro-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
  border-left: 4px solid var(--color-secondary);
}

.intro-card h2 {
  color: var(--color-secondary);
  margin-bottom: 16px;
}

.intro-card p {
  margin-bottom: 10px;
  color: var(--color-text-light);
}

.section-title {
  font-size: 1.4rem;
  color: var(--color-text);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.route-cards {
  display: grid;
  gap: 24px;
  margin-bottom: 40px;
}

.route-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.route-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 3rem;
  font-weight: 800;
  opacity: 0.08;
  line-height: 1;
}

.route-sexual { border-top: 4px solid #e85d75; }
.route-blood { border-top: 4px solid var(--color-primary); }
.route-mother { border-top: 4px solid #9b59b6; }

.route-card h3 {
  font-size: 1.3rem;
  margin-bottom: 14px;
  color: var(--color-primary);
}

.route-card p {
  color: var(--color-text-light);
  margin-bottom: 10px;
}

.highlight-text {
  background: var(--color-primary-light);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
}

.risk-list {
  list-style: none;
  margin-bottom: 16px;
}

.risk-list li {
  padding: 8px 0 8px 20px;
  position: relative;
  color: var(--color-text-light);
}

.risk-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.prevention-box {
  background: #f0faf4;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-top: 16px;
}

.prevention-box h4 {
  color: var(--color-success);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.prevention-box ul {
  list-style: none;
}

.prevention-box li {
  padding: 4px 0 4px 18px;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.prevention-box li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
}

.safe-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  margin-bottom: 40px;
}

.safe-card h2 {
  color: var(--color-secondary);
  margin-bottom: 16px;
}

.safe-intro {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.safe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.safe-item {
  background: #e8f5e9;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-weight: 500;
  color: #2e7d32;
}

.tip-box {
  background: #fff8e1;
  border-left: 4px solid #f9a825;
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #e85d75 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-banner h3 {
  margin-bottom: 8px;
}

.cta-banner .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  white-space: nowrap;
}

.cta-banner .btn-primary:hover {
  background: var(--color-primary-light);
}

/* Services Page */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.tip-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.tip-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.tip-card h3 {
  color: var(--color-primary);
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.tip-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-urgent {
  background: #ffebee;
  color: #c62828;
}

.table-wrap {
  overflow-x: auto;
  margin-bottom: 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  font-size: 0.92rem;
}

.service-table th,
.service-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.service-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  white-space: nowrap;
}

.service-table tr:hover {
  background: var(--color-primary-light);
}

.highlight-row {
  background: #fff8e1;
}

.tag-24h {
  display: inline-block;
  background: #c62828;
  color: white;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.district-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.district-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.district-card h3 {
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary-light);
}

.service-list {
  list-style: none;
}

.service-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.service-list li:last-child {
  border-bottom: none;
}

.service-list strong {
  display: block;
  margin-bottom: 4px;
}

.service-list span {
  display: block;
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.service-list .time {
  margin-top: 4px;
  font-size: 0.82rem;
  color: #888;
}

.section-desc {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.emergency-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.emergency-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid #c62828;
}

.emergency-card h4 {
  color: var(--color-text);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.emergency-card p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.phone-link {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-primary);
}

/* Footer */
.site-footer {
  background: #2c3e50;
  color: rgba(255, 255, 255, 0.8);
  padding: 24px 0;
  text-align: center;
  margin-top: auto;
  font-size: 0.9rem;
}

.hotline {
  margin-top: 6px;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 0;
    gap: 10px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .survey-form {
    padding: 20px;
  }

  .form-actions {
    flex-direction: column;
  }

  .cta-banner {
    flex-direction: column;
    text-align: center;
  }
}