/* ============================================
   贝倍嘉美术 COLORBEE - 全局样式表
   VI配色：深海蓝 #0A3A6B | 金黄 #F5B800 | 珊瑚红 #FF5A5A | 黑 #000000 | 白 #FFFFFF
   来源：贝倍嘉第二代VI设计 / 指定色彩参数
   ============================================ */

:root {
  --color-primary: #F5B800;
  --color-primary-dark: #E0A600;
  --color-primary-light: #FFE680;
  --color-secondary: #0A3A6B;
  --color-secondary-light: #1E5A94;
  --color-secondary-dark: #072A4D;
  --color-accent: #FF5A5A;
  --color-accent-dark: #E84A4A;
  --color-bg: #FFFCF5;
  --color-bg-alt: #F7F5F0;
  --color-text: #1A1A1A;
  --color-text-light: #555;
  --color-text-muted: #888;
  --color-border: #E8E4D9;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-error: #FF5A5A;
  --color-success: #2E9D4F;

  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Georgia", "Songti SC", "SimSun", serif;

  --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 40px rgba(0,0,0,0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; height: auto; display: block; }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--color-secondary); }
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }

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

.container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* === Section === */
section { padding: 64px 0; }
.section-sm { padding: 40px 0; }
.section-lg { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-primary { background: var(--color-secondary); color: var(--color-white); }
.section-primary h2, .section-primary h3 { color: var(--color-white); }

.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--color-text-light); font-size: 1.05rem; max-width: 680px; margin: 0 auto; }
.section-header .divider {
  width: 60px; height: 4px; background: var(--color-primary);
  border-radius: var(--radius-full); margin: 16px auto 0;
}

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-full);
  font-size: 0.95rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); border: none; text-align: center;
}
.btn-primary {
  background: var(--color-primary); color: var(--color-white);
  box-shadow: 0 4px 16px rgba(245,184,0,0.35);
}
.btn-primary:hover { background: var(--color-primary-dark); color: var(--color-white); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(245,184,0,0.45); }
.btn-secondary {
  background: transparent; color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.7);
}
.btn-secondary:hover { background: var(--color-white); color: var(--color-secondary); border-color: var(--color-white); }
.btn-outline {
  background: transparent; color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}
.btn-outline:hover { background: var(--color-secondary); color: var(--color-white); }
.btn-accent {
  background: var(--color-accent); color: var(--color-white);
}
.btn-accent:hover { background: #E84A4A; color: var(--color-white); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }
.btn-block { display: flex; width: 100%; }

/* === Navigation === */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,252,245,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  max-width: var(--container-max); margin: 0 auto;
  padding: 0 24px; height: 70px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center;
  height: 52px;
}
.nav-logo-img {
  height: 46px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}
.footer-logo-img {
  height: 64px;
  width: auto;
  max-width: 260px;
  object-fit: contain;
  display: block;
  margin-bottom: 12px;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu > li > a {
  display: block; padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 0.92rem; font-weight: 500; color: var(--color-text);
}
.nav-menu > li > a:hover, .nav-menu > li > a.active {
  color: var(--color-primary); background: rgba(245,184,0,0.08);
}
.nav-menu .btn-nav {
  background: var(--color-primary); color: var(--color-white) !important;
  padding: 8px 22px; border-radius: var(--radius-full); font-weight: 600;
}
.nav-menu .btn-nav:hover { background: var(--color-primary-dark); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; font-size: 1.5rem; color: var(--color-secondary); }

/* === Hero === */
.hero {
  position: relative; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  background: linear-gradient(135deg, #0A3A6B 0%, #1E5A94 50%, #F5B800 100%);
  color: var(--color-white);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top left, rgba(245,184,0,0.15) 0%, transparent 50%),
              radial-gradient(ellipse at bottom right, rgba(255,90,90,0.1) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 2; max-width: 860px; padding: 80px 24px; }
.hero h1 { color: var(--color-white); margin-bottom: 16px; }
.hero .subtitle { font-size: 1.15rem; opacity: 0.9; margin-bottom: 32px; }
.hero-stats {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 16px;
  margin-bottom: 36px;
}
.hero-stats span {
  background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 10px 20px; border-radius: var(--radius-full); font-size: 0.9rem; font-weight: 500;
}
.hero-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 40px; }
.trust-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; opacity: 0.85; }
.trust-badges img { height: 40px; width: auto; }
.trust-badges .badge-text {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; background: rgba(255,255,255,0.1);
  padding: 6px 16px; border-radius: var(--radius-full);
}

/* === Evidence Grid === */
.evidence-section { background: var(--color-bg); }
.evidence-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px;
}
.evidence-item {
  text-align: center; padding: 36px 24px;
  background: var(--color-white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); transition: var(--transition);
  border-top: 4px solid var(--color-primary);
}
.evidence-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.evidence-item .number {
  display: block; font-size: 2.6rem; font-weight: 800;
  color: var(--color-primary); line-height: 1.1; margin-bottom: 8px;
}
.evidence-item .label { display: block; font-size: 1rem; font-weight: 600; color: var(--color-secondary); margin-bottom: 6px; }
.evidence-item .desc { display: block; font-size: 0.88rem; color: var(--color-text-light); }

/* === Course Grid === */
.course-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px;
}
.course-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 36px 28px; box-shadow: var(--shadow-sm);
  transition: var(--transition); position: relative; border: 1px solid var(--color-border);
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.course-card.featured {
  border: 2px solid var(--color-primary);
  background: linear-gradient(135deg, #FFFCF5 0%, #FFF5CC 100%);
}
.course-card .badge {
  position: absolute; top: -12px; right: 24px;
  background: var(--color-primary); color: var(--color-white);
  padding: 4px 16px; border-radius: var(--radius-full); font-size: 0.78rem; font-weight: 700;
}
.course-card .icon { font-size: 2.5rem; margin-bottom: 16px; }
.course-card h3 { margin-bottom: 6px; }
.course-card .age { color: var(--color-primary); font-weight: 600; font-size: 0.9rem; margin-bottom: 12px; }
.course-card p { color: var(--color-text-light); font-size: 0.92rem; margin-bottom: 20px; }
.course-card a { font-weight: 600; font-size: 0.9rem; }

/* === Flagship Products === */
.flagship-products { background: var(--color-bg-alt); }
.product-block {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 40px; margin-bottom: 32px; box-shadow: var(--shadow-sm);
  border-left: 5px solid var(--color-primary);
}
.product-block h3 { margin-bottom: 20px; }
.product-metrics {
  display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 20px;
}
.product-metrics span {
  background: rgba(255,90,90,0.1); color: #C43E3E;
  padding: 8px 18px; border-radius: var(--radius-full); font-size: 0.88rem; font-weight: 600;
}
.product-block p { color: var(--color-text-light); margin-bottom: 20px; }

/* === Case Cards === */
.case-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px;
}
.case-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition);
  border: 1px solid var(--color-border);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.case-card.highlight { border: 2px solid var(--color-primary); }
.case-card .tag {
  display: inline-block; background: var(--color-primary); color: var(--color-white);
  padding: 4px 14px; border-radius: var(--radius-sm); font-size: 0.78rem; font-weight: 600;
  margin: 24px 24px 0;
}
.case-card .tag.green { background: var(--color-accent); }
.case-card .tag.blue { background: var(--color-secondary); }
.case-card h3 { padding: 12px 24px 8px; font-size: 1.15rem; }
.case-card p { padding: 0 24px 20px; color: var(--color-text-light); font-size: 0.92rem; }
.case-card a { display: block; padding: 0 24px 24px; font-weight: 600; font-size: 0.9rem; }

/* === News Filter === */
.news-filter {
  max-width: 860px; margin: 0 auto 24px;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.news-filter-btn {
  padding: 8px 18px; border: 1px solid var(--color-border); border-radius: 20px;
  background: var(--color-white); color: var(--color-text-light);
  font-size: 0.88rem; cursor: pointer; transition: var(--transition);
}
.news-filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.news-filter-btn.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }

/* === News List === */
.news-list { max-width: 860px; margin: 0 auto; }
.news-list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.news-list li:hover { padding-left: 12px; }
.news-list li a { font-weight: 500; flex: 1; display: block; min-width: 0; }
.news-list li a strong { display: block; }
.news-list li a .news-summary {
  display: block;
  color: var(--color-text-light); font-size: 0.88rem; font-weight: 400;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  margin-top: 4px;
}
.news-list li span { color: var(--color-text-muted); font-size: 0.88rem; white-space: nowrap; margin-left: 16px; }

/* === Footer === */
footer {
  background: var(--color-secondary); color: rgba(255,255,255,0.8);
  padding: 56px 0 0;
}
.footer-grid {
  max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr; gap: 40px;
}
.footer-brand h3 { color: var(--color-white); margin-bottom: 12px; }
.footer-brand h3 span { color: var(--color-primary); font-size: 0.8rem; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); }
.footer-links h4 { color: var(--color-white); margin-bottom: 16px; font-size: 0.95rem; }
.footer-links a { display: block; color: rgba(255,255,255,0.6); font-size: 0.88rem; padding: 4px 0; }
.footer-links a:hover { color: var(--color-primary); }
.footer-contact p { font-size: 0.88rem; margin-bottom: 8px; }
.footer-contact .social-links { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.footer-contact .social-links a { font-size: 0.85rem; color: rgba(255,255,255,0.6); }
.footer-bottom {
  max-width: var(--container-max); margin: 0 auto; padding: 24px;
  border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px;
  text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-primary); }

/* === Page Banner === */
.page-banner {
  background: linear-gradient(135deg, #0A3A6B 0%, #1E5A94 100%);
  color: var(--color-white); padding: 60px 0 48px; text-align: center;
}
.page-banner h1 { color: var(--color-white); margin-bottom: 12px; }
.page-banner p { opacity: 0.85; font-size: 1.05rem; max-width: 680px; margin: 0 auto; }
.breadcrumb {
  display: flex; gap: 8px; align-items: center; justify-content: center;
  font-size: 0.85rem; opacity: 0.7; margin-top: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { opacity: 0.5; }

/* === Timeline === */
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding: 20px 0; }
.timeline::before {
  content: ''; position: absolute; left: 30px; top: 0; bottom: 0;
  width: 3px; background: var(--color-border);
}
.timeline-item { position: relative; padding-left: 70px; margin-bottom: 36px; }
.timeline-item::before {
  content: ''; position: absolute; left: 22px; top: 4px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--color-primary); border: 3px solid var(--color-white);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.timeline-item .year { font-size: 1.3rem; font-weight: 800; color: var(--color-primary); margin-bottom: 4px; }
.timeline-item h4 { margin-bottom: 6px; }
.timeline-item p { color: var(--color-text-light); font-size: 0.92rem; }

/* === Team Cards === */
.team-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px;
}
.team-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 32px 24px; text-align: center; box-shadow: var(--shadow-sm);
  transition: var(--transition); border: 1px solid var(--color-border);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.team-card .avatar {
  width: 100px; height: 100px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  margin: 0 auto 16px; display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; color: var(--color-white); font-weight: 700;
}
.team-card h4 { margin-bottom: 4px; }
.team-card .role { color: var(--color-primary); font-size: 0.88rem; font-weight: 600; margin-bottom: 12px; }
.team-card .bio { color: var(--color-text-light); font-size: 0.88rem; text-align: left; }

/* === FAQ Accordion === */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-category { margin-bottom: 40px; }
.faq-category h3 {
  font-size: 1.2rem; margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary); display: inline-block;
}
.faq-item {
  background: var(--color-white); border-radius: var(--radius-md);
  margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.faq-question {
  width: 100%; text-align: left; padding: 18px 24px;
  background: none; border: none; cursor: pointer;
  font-size: 1rem; font-weight: 600; color: var(--color-secondary);
  display: flex; justify-content: space-between; align-items: center;
  transition: var(--transition);
}
.faq-question:hover { color: var(--color-primary); }
.faq-question .icon { font-size: 1.4rem; transition: var(--transition); color: var(--color-primary); }
.faq-question.active .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  padding: 0 24px;
}
.faq-answer.open { max-height: 600px; padding-bottom: 20px; }
.faq-answer p { color: var(--color-text-light); font-size: 0.92rem; line-height: 1.8; }

/* === Tables === */
.table-wrap { overflow-x: auto; margin: 24px 0; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; background: var(--color-white); min-width: 600px; }
thead { background: var(--color-secondary); }
thead th { color: var(--color-white); padding: 14px 18px; text-align: left; font-size: 0.9rem; font-weight: 600; }
tbody td { padding: 14px 18px; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
tbody tr:nth-child(even) { background: var(--color-bg-alt); }
tbody tr:hover { background: rgba(245,184,0,0.05); }

/* === Forms === */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--color-secondary); font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: 0.95rem; font-family: var(--font-sans);
  background: var(--color-white); transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(245,184,0,0.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* === Info Cards === */
.info-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  transition: var(--transition);
}
.info-card:hover { box-shadow: var(--shadow-md); }
.info-card .icon { font-size: 2rem; margin-bottom: 12px; }
.info-card h4 { margin-bottom: 8px; }
.info-card p { color: var(--color-text-light); font-size: 0.9rem; }

.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }

/* === Feature List === */
.feature-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature-item {
  display: flex; gap: 16px; padding: 24px;
  background: var(--color-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm);
}
.feature-item .num {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem;
}
.feature-item h4 { margin-bottom: 4px; }
.feature-item p { color: var(--color-text-light); font-size: 0.88rem; }

/* === Tags === */
.tag-filter { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.tag-filter button {
  padding: 8px 20px; border: 1px solid var(--color-border); border-radius: var(--radius-full);
  background: var(--color-white); cursor: pointer; font-size: 0.88rem; font-weight: 500;
  color: var(--color-text); transition: var(--transition);
}
.tag-filter button:hover, .tag-filter button.active {
  background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary);
}

/* === CTA Section === */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white); text-align: center; padding: 56px 0;
}
.cta-section h2 { color: var(--color-white); margin-bottom: 12px; }
.cta-section p { opacity: 0.9; margin-bottom: 28px; font-size: 1.05rem; }
.cta-section .btn-secondary { color: var(--color-primary); border-color: var(--color-white); }
.cta-section .btn-secondary:hover { background: var(--color-white); color: var(--color-primary); }

/* === Article === */
.article-body { max-width: 760px; margin: 0 auto; }
.article-body h2 { margin: 32px 0 16px; }
.article-body h3 { margin: 24px 0 12px; }
.article-body p { margin-bottom: 16px; color: var(--color-text); line-height: 1.9; }
.article-body ul { list-style: disc; padding-left: 24px; margin-bottom: 16px; }
.article-body li { margin-bottom: 8px; color: var(--color-text-light); }
.article-body blockquote {
  border-left: 4px solid var(--color-primary); padding: 16px 24px;
  background: var(--color-bg-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0; font-style: italic; color: var(--color-text-light);
}
.article-meta { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 24px; }

/* === Gallery === */
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px;
}
.gallery-item {
  aspect-ratio: 1; border-radius: var(--radius-md); overflow: hidden;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border));
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; color: var(--color-text-muted); transition: var(--transition);
  cursor: pointer;
}
.gallery-item:hover { transform: scale(1.03); box-shadow: var(--shadow-md); }

/* === Honor Badges === */
.honor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; }
.honor-card {
  text-align: center; padding: 32px 20px; background: var(--color-white);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  transition: var(--transition);
}
.honor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.honor-card .medal { font-size: 3rem; margin-bottom: 12px; }
.honor-card h4 { margin-bottom: 6px; font-size: 1rem; }
.honor-card p { font-size: 0.82rem; color: var(--color-text-light); }

/* === Partner Grid === */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.partner-card {
  text-align: center; padding: 28px 16px; background: var(--color-white);
  border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
  transition: var(--transition);
}
.partner-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.partner-card .logo-placeholder {
  width: 60px; height: 60px; border-radius: 50%; margin: 0 auto 12px;
  background: var(--color-bg-alt); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--color-secondary);
}
.partner-card h4 { font-size: 0.95rem; margin-bottom: 4px; }
.partner-card p { font-size: 0.82rem; color: var(--color-text-light); }

/* === Campus Cards === */
.campus-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.campus-card {
  background: var(--color-white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border); transition: var(--transition);
}
.campus-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.campus-card .map-placeholder {
  height: 180px; background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border));
  display: flex; align-items: center; justify-content: center; font-size: 3rem;
}
.campus-card .info { padding: 24px; }
.campus-card h4 { margin-bottom: 8px; }
.campus-card p { font-size: 0.88rem; color: var(--color-text-light); margin-bottom: 4px; }

/* === Sitemap === */
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; }
.sitemap-col h4 { margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid var(--color-primary); }
.sitemap-col ul li { margin-bottom: 8px; }
.sitemap-col ul li a { font-size: 0.9rem; color: var(--color-text-light); }
.sitemap-col ul li a:hover { color: var(--color-primary); }

/* === Method Steps === */
.method-steps { max-width: 900px; margin: 0 auto; }
.method-phase { margin-bottom: 40px; }
.method-phase h3 {
  display: flex; align-items: center; gap: 12px; margin-bottom: 20px;
  padding: 12px 24px; background: var(--color-secondary); color: var(--color-white);
  border-radius: var(--radius-md);
}
.method-phase h3 .phase-num {
  background: var(--color-primary); width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 0.9rem;
}
.method-steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.method-step {
  padding: 20px; background: var(--color-white); border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary); box-shadow: var(--shadow-sm);
}
.method-step .step-num { font-size: 0.78rem; color: var(--color-primary); font-weight: 700; margin-bottom: 4px; }
.method-step h5 { font-size: 0.95rem; margin-bottom: 6px; color: var(--color-secondary); }
.method-step p { font-size: 0.82rem; color: var(--color-text-light); }

/* === Testimonial === */
.testimonial {
  background: var(--color-white); border-radius: var(--radius-lg); padding: 32px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border); margin-bottom: 24px;
}
.testimonial .quote { font-size: 1.05rem; color: var(--color-text); margin-bottom: 16px; line-height: 1.8; }
.testimonial .author { font-weight: 600; color: var(--color-secondary); }
.testimonial .author span { font-weight: 400; color: var(--color-text-muted); font-size: 0.88rem; }

/* === Alert Box === */
.alert {
  padding: 16px 24px; border-radius: var(--radius-md); margin: 20px 0; font-size: 0.9rem;
}
.alert-info { background: rgba(10,58,107,0.08); border-left: 4px solid var(--color-secondary); color: var(--color-secondary); }
.alert-warning { background: rgba(245,184,0,0.1); border-left: 4px solid var(--color-primary); }
.alert-success { background: rgba(255,90,90,0.1); border-left: 4px solid var(--color-accent); }

/* === Responsive === */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none; position: absolute; top: 70px; left: 0; right: 0;
    flex-direction: column; background: var(--color-white);
    padding: 16px; box-shadow: var(--shadow-md); gap: 0;
  }
  .nav-menu.open { display: flex; }
  .nav-menu > li { width: 100%; }
  .nav-menu > li > a { padding: 12px 16px; border-radius: 0; }
  .nav-toggle { display: block; }

  .hero { min-height: 500px; }
  .hero-stats { flex-direction: column; align-items: center; }
  .hero-stats span { width: 100%; max-width: 320px; text-align: center; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 300px; }

  section { padding: 48px 0; }
  .evidence-grid, .course-grid, .case-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .product-block { padding: 28px 20px; }

  .timeline::before { left: 15px; }
  .timeline-item { padding-left: 48px; }
  .timeline-item::before { left: 7px; }

  .news-list li { flex-direction: column; align-items: flex-start; gap: 4px; }
  .news-list li a { width: 100%; }
  .news-list li a .news-summary { width: 100%; }
  .news-list li span { margin-left: 0; }
}

@media (max-width: 480px) {
  .container, .container-narrow { padding: 0 16px; }
  .hero-content { padding: 48px 16px; }
  .evidence-item .number { font-size: 2rem; }
  .method-steps-grid { grid-template-columns: 1fr; }
}

/* === Animation === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fadeInUp { animation: fadeInUp 0.6s ease forwards; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.animate-float { animation: float 3s ease-in-out infinite; }

/* === Utility === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.hidden { display: none; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.w-full { width: 100%; }

/* === 在线咨询悬浮窗 === */
#chat-widget { position: fixed; bottom: 24px; right: 24px; z-index: 9999; font-family: inherit; }
.chat-fab {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--color-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; box-shadow: 0 4px 16px rgba(10,58,107,0.4);
  transition: transform 0.2s; position: relative;
}
.chat-fab:hover { transform: scale(1.08); background: var(--color-primary-light); }
.chat-badge {
  position: absolute; top: -2px; right: -2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-highlight); border: 2px solid #fff;
  display: none;
}
.chat-badge.show { display: block; animation: pulse-badge 1.5s infinite; }
@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}
.chat-panel {
  position: fixed; bottom: 24px; right: 24px;
  width: 360px; max-width: calc(100vw - 48px);
  height: 500px; max-height: calc(100vh - 48px);
  background: #fff; border-radius: 16px;
  box-shadow: 0 12px 48px rgba(0,0,0,0.2);
  display: none; flex-direction: column; overflow: hidden;
}
.chat-panel.show { display: flex; animation: chatSlideUp 0.3s ease; }
@keyframes chatSlideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.chat-header {
  background: var(--color-primary); color: #fff;
  padding: 16px 20px; display: flex; justify-content: space-between; align-items: center;
}
.chat-header-title { font-size: 1rem; font-weight: 700; display: block; }
.chat-header-subtitle { font-size: 0.75rem; opacity: 0.8; display: block; }
.chat-close { background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; line-height: 1; }
.chat-body {
  flex: 1; overflow-y: auto; padding: 16px;
  background: #f8f9fa; display: flex; flex-direction: column; gap: 10px;
}
.chat-welcome {
  background: #fff; border-radius: 12px; padding: 16px;
  font-size: 0.85rem; color: var(--color-text); line-height: 1.6;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.chat-replied-title {
  text-align: center; font-size: 0.75rem; color: var(--color-text-muted);
  margin: 8px 0; padding: 4px;
}
.chat-msg-user { display: flex; justify-content: flex-end; }
.chat-msg-reply { display: flex; justify-content: flex-start; }
.chat-msg-bubble {
  max-width: 80%; padding: 10px 14px; border-radius: 12px;
  font-size: 0.85rem; line-height: 1.5; word-break: break-word;
}
.chat-msg-user .chat-msg-bubble {
  background: var(--color-primary); color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-msg-bubble.reply {
  background: #fff; color: var(--color-text);
  border: 1px solid var(--color-border); border-bottom-left-radius: 4px;
}
.chat-msg-bubble.reply .chat-q { font-size: 0.8rem; color: var(--color-text-light); margin-bottom: 4px; }
.chat-msg-bubble.reply .chat-a { font-size: 0.85rem; color: var(--color-text); }
.chat-form {
  padding: 12px 16px; border-top: 1px solid var(--color-border);
  background: #fff; display: flex; flex-direction: column; gap: 8px;
}
.chat-form input, .chat-form textarea {
  width: 100%; padding: 8px 12px; border: 1px solid var(--color-border);
  border-radius: 8px; font-size: 0.85rem; font-family: inherit; resize: none;
}
.chat-form input:focus, .chat-form textarea:focus {
  outline: none; border-color: var(--color-accent);
}
.chat-send-btn {
  align-self: flex-end; padding: 8px 24px;
  background: var(--color-accent); color: var(--color-text);
  border: none; border-radius: 8px; font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.chat-send-btn:hover { background: var(--color-accent-dark); }
.chat-send-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.chat-toast {
  position: fixed; top: 80px; right: 24px; padding: 10px 18px;
  border-radius: 8px; font-size: 0.85rem; color: #fff; z-index: 10000;
  animation: slideIn 0.3s ease; box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.chat-toast.success { background: var(--color-success); }
.chat-toast.error { background: var(--color-error); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
.alert-error {
  background: #fdf0f0; color: #c43e3e; border: 1px solid #f5c6c6;
  padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 0.88rem;
}
@media (max-width: 768px) {
  .chat-panel { width: calc(100vw - 24px); right: 12px; bottom: 12px; height: calc(100vh - 24px); }
  #chat-widget { bottom: 16px; right: 16px; }
}