/* ============================================
   标尺管理咨询 - SCMP认证培训官网
   ============================================ */

/* === CSS Variables === */
:root {
  --primary: #1B5299;
  --primary-light: #2A6DB5;
  --primary-dark: #0E3A6B;
  --accent: #E07B18;
  --accent-light: #F0983A;
  --accent-dark: #B86510;
  --success: #2D8A56;
  --text-dark: #222;
  --text-body: #444;
  --text-muted: #777;
  --text-light: #999;
  --bg-white: #FFFFFF;
  --bg-light: #F7F8FA;
  --bg-subtle: #EEF1F5;
  --bg-dark: #1A2A3F;
  --border-light: #E0E4EA;
  --border-medium: #C5CBD5;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 12px rgba(0,0,0,0.08);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-body: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

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

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* === Typography Scale === */
h1, h2, h3, h4, h5 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.65rem); }
h4 { font-size: clamp(1.1rem, 1.8vw, 1.3rem); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* === Layout === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.section-sm {
  padding: clamp(2rem, 4vw, 3rem) 0;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.6rem;
  background: rgba(224,123,24,0.08);
}

.section-title {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  color: var(--text-dark);
  margin-bottom: 0.6rem;
  font-weight: 700;
}

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

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.8;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

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

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

.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-white:hover {
  background: var(--bg-light);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.08);
  border-color: #fff;
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
}

.nav-logo-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.nav-logo-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0.5rem 0.9rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-body);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 160px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-dropdown a {
  display: block;
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
  white-space: nowrap;
}
.nav-dropdown a:hover {
  background: var(--bg-light);
  color: var(--primary);
}

.nav-cta {
  margin-left: 0.8rem;
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: 100px;
  padding-bottom: 50px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.2rem;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-light);
  border-radius: 50%;
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.hero-title-accent {
  color: var(--accent-light);
  display: block;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-phone {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255,255,255,0.75);
  font-size: 0.88rem;
}

.hero-phone-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-phone-num {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.hero-card-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.hero-cert-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.hero-cert-card:hover {
  background: rgba(255,255,255,0.13);
  transform: translateY(-3px);
}

.hero-cert-num {
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.hero-cert-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.4;
}

.hero-cert-card.full-width {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  text-align: left;
}

.hero-cert-icon {
  width: 48px;
  height: 48px;
  background: rgba(232,130,26,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.5rem;
}

/* === Stats Bar === */
.stats-bar {
  background: var(--bg-dark);
  padding: 1.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}

.stat-item {
  padding: 0.5rem 1rem;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
}

/* === Feature Cards === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
  background: var(--bg-subtle);
}

.feature-icon.blue { background: rgba(10,61,122,0.1); }
.feature-icon.orange { background: rgba(232,130,26,0.1); }
.feature-icon.green { background: rgba(26,122,74,0.1); }
.feature-icon.gold { background: rgba(212,168,67,0.1); }

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.6rem;
}

.feature-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* === Course Grid === */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.course-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.course-card:hover {
  box-shadow: var(--shadow-sm);
}

.course-header {
  padding: 1.3rem;
  background: var(--primary);
  color: #fff;
}

.course-badge {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 0.15rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.course-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.course-code {
  font-size: 0.8rem;
  opacity: 0.75;
  font-weight: 600;
}

.course-body {
  padding: 1.5rem;
}

.course-topics {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.course-topic {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-body);
}

.course-topic::before {
  content: '▸';
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 0.05rem;
  font-size: 0.85rem;
}

/* === Process Steps === */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 35px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: var(--border-light);
  z-index: 0;
}

.process-step {
  text-align: center;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.process-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 1rem;
  border: 3px solid var(--bg-white);
}

.process-num {
  position: absolute;
  top: -6px;
  right: calc(50% - 48px);
  width: 22px;
  height: 22px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.process-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === Testimonials === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-sm);
}

.testimonial-quote {
  display: none;
}

.testimonial-text {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.testimonial-highlight {
  margin-top: 0.6rem;
  padding: 0.5rem 0.8rem;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  font-size: 0.82rem;
  color: var(--text-body);
}

/* === News Cards === */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.news-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover {
  box-shadow: var(--shadow-sm);
}

.news-card-img {
  height: 160px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  overflow: hidden;
}

.news-card-body {
  padding: 1.3rem;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.news-tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(10,61,122,0.08);
  color: var(--primary);
}

.news-date {
  font-size: 0.78rem;
  color: var(--text-light);
}

.news-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-excerpt {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === CTA Banner === */
.cta-banner {
  background: var(--primary);
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.cta-content {
  text-align: center;
  position: relative;
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 0.8rem;
}

.cta-subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Footer === */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 3.5rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.3rem;
}

.footer-brand-tagline {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  margin-bottom: 1.3rem;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 0.5rem;
}

.footer-contact-item span {
  color: var(--accent-light);
  font-size: 1rem;
}

.footer-heading {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.2rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  transition: color 0.2s;
}
.footer-links a:hover { color: #fff; }

.footer-cert-badge {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin-bottom: 1rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

.footer-cert-badge strong {
  color: #fff;
  display: block;
  margin-bottom: 0.3rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* === Floating CTA === */
.floating-cta {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: var(--transition);
  border: none;
  text-decoration: none;
  position: relative;
}

.floating-btn:hover {
  opacity: 0.85;
}

.floating-btn-primary {
  background: var(--accent);
  color: #fff;
}

.floating-btn-wechat {
  background: #07C160;
  color: #fff;
}

.floating-btn-phone {
  background: var(--primary);
  color: #fff;
}

.floating-btn-tooltip {
  position: absolute;
  right: 58px;
  background: var(--text-dark);
  color: #fff;
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(4px);
  transition: all 0.2s;
  pointer-events: none;
}

.floating-btn:hover .floating-btn-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* === Page Header (inner pages) === */
.page-header {
  background: var(--primary);
  padding: 4rem 0 2.5rem;
  margin-top: 70px;
}

.page-header-content {
  text-align: center;
}

.page-header-tag {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.8rem;
}

.page-header-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 0.8rem;
}

.page-header-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  margin-top: 1.2rem;
}

.breadcrumb a {
  color: rgba(255,255,255,0.55);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb-sep { color: rgba(255,255,255,0.35); }
.breadcrumb-current { color: rgba(255,255,255,0.85); }

/* === Utility Classes === */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.bg-light { background: var(--bg-light); }
.bg-subtle { background: var(--bg-subtle); }

.divider-line {
  width: 40px;
  height: 3px;
  background: var(--primary);
  margin: 0.8rem auto;
}

/* === Tag Chip === */
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}
.tag-primary { background: rgba(27,82,153,0.08); color: var(--primary); }
.tag-accent { background: rgba(224,123,24,0.08); color: var(--accent-dark); }
.tag-success { background: rgba(45,138,86,0.08); color: var(--success); }

/* === Info Table === */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.info-table th,
.info-table td {
  padding: 0.9rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.info-table th {
  background: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-dark);
  width: 140px;
}

.info-table td {
  color: var(--text-body);
}

.info-table tr:hover td {
  background: var(--bg-light);
}

/* === Accordion === */
.accordion-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  cursor: pointer;
  background: var(--bg-white);
  font-weight: 600;
  color: var(--text-dark);
  transition: background 0.2s;
}

.accordion-header:hover { background: var(--bg-light); }

.accordion-header.open {
  background: var(--bg-subtle);
  color: var(--primary);
}

.accordion-toggle {
  font-size: 1.2rem;
  transition: transform 0.3s;
  color: var(--text-muted);
}

.accordion-header.open .accordion-toggle {
  transform: rotate(45deg);
  color: var(--primary);
}

.accordion-body {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.35s ease;
}

.accordion-body.open {
  padding: 1rem 1.5rem 1.5rem;
  max-height: 600px;
}

.accordion-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* === Form Styles === */
.form-group {
  margin-bottom: 1.2rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--bg-white);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10,61,122,0.1);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%237A839A' d='M7 7l3 3 3-3z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px;
  padding-right: 2.5rem;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* === Animation Classes === */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* === Section Description === */
.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* === Table Scroll Wrapper === */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -1rem;
  padding: 0 1rem;
}
.table-wrapper .info-table {
  min-width: 500px;
}

/* === Mobile Nav Submenu Toggle === */
.nav-dropdown-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform 0.2s;
  line-height: 1;
  margin-left: auto;
}

.nav-dropdown-toggle.open {
  transform: rotate(90deg);
}

/* ============================================
   RESPONSIVE — 移动端优先重构
   策略：使用属性选择器覆盖内联 grid 样式
   ============================================ */

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }

  /* 覆盖内联双栏布局 */
  [style*="grid-template-columns:2fr 1fr"],
  [style*="grid-template-columns:2fr  1fr"],
  [style*="grid-template-columns:1fr 2fr"],
  [style*="grid-template-columns:1fr  2fr"],
  [style*="grid-template-columns:3fr 2fr"],
  [style*="grid-template-columns:3fr  2fr"],
  [style*="grid-template-columns:1.2fr 0.8fr"],
  [style*="grid-template-columns:1.2fr  0.8fr"] {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  [style*="grid-template-columns: repeat(6"],
  [style*="grid-template-columns:repeat(6"] {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

@media (max-width: 768px) {
  /* === 基础调整 === */
  html { font-size: 15px; }
  body { -webkit-tap-highlight-color: transparent; }

  /* === 导航栏 === */
  .nav-inner { height: 60px; }
  .nav-logo-name { font-size: 0.9rem; }
  .nav-logo-sub { display: none; }
  .nav-logo-icon { width: 36px; height: 36px; font-size: 1rem; }

  .nav-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 0.5rem 0;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    display: none;
    gap: 0;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-menu.open { display: flex; }

  .nav-link {
    padding: 0.85rem 1.2rem;
    border-bottom: 1px solid var(--bg-subtle);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    min-height: 48px;
  }

  .nav-link[style*="margin-left"] {
    margin-left: 0 !important;
    margin-top: 0;
  }
  .nav-item[style*="margin-left"] { margin-left: 0 !important; }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0;
    display: none;
    background: var(--bg-light);
    border-bottom: 1px solid var(--bg-subtle);
  }
  .nav-dropdown.open { display: block; }

  .nav-dropdown a {
    padding: 0.7rem 1.2rem 0.7rem 2rem;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border-light);
  }
  .nav-dropdown a:last-child { border-bottom: none; }

  .nav-dropdown-toggle { display: block; }

  .nav-cta { margin-left: 0 !important; }
  .nav-cta .btn { display: block; text-align: center; margin: 0.5rem 1rem; }

  .nav-mobile-toggle { display: flex; }

  /* === Hero === */
  .hero { min-height: auto; padding-top: 60px; }
  .hero-content { padding-top: 2rem; padding-bottom: 2rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-card-panel { display: none; }
  .hero-title { font-size: 1.8rem; }
  .hero-subtitle { max-width: 100%; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; width: 100%; }
  .hero-phone { justify-content: center; }

  /* === Page Header === */
  .page-header {
    padding: 2.5rem 0 2rem;
    margin-top: 60px;
  }
  .page-header::before { height: 25px; }
  .page-header-title { font-size: 1.5rem; }
  .page-header-sub { font-size: 0.9rem; }
  .page-header-tag { font-size: 0.72rem; padding: 0.25rem 0.8rem; }

  /* === Stats Bar === */
  .stats-bar { padding: 1.2rem 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item {
    padding: 0.6rem 0.5rem;
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .stat-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.08); }
  .stat-item:nth-last-child(-n+2) { border-bottom: none; }

  /* === Grids: 覆盖所有内联 grid === */
  .features-grid,
  .courses-grid,
  .testimonials-grid,
  .news-grid {
    grid-template-columns: 1fr !important;
  }

  /* 强制覆盖内联 grid-template-columns */
  [style*="grid-template-columns: repeat(3"],
  [style*="grid-template-columns:repeat(3"],
  [style*="grid-template-columns: repeat(4"],
  [style*="grid-template-columns:repeat(4"],
  [style*="grid-template-columns: repeat(6"],
  [style*="grid-template-columns:repeat(6"],
  [style*="grid-template-columns:1fr 1fr;gap:4rem"],
  [style*="grid-template-columns:1fr 1fr; gap:4rem"],
  [style*="grid-template-columns:1fr 1fr;gap:2rem"],
  [style*="grid-template-columns:1fr 1fr; gap:2rem"],
  [style*="grid-template-columns:1fr 1fr;gap:3rem"],
  [style*="grid-template-columns:1fr 1fr; gap:3rem"],
  [style*="grid-template-columns:1fr 1fr;gap:1.2rem"],
  [style*="grid-template-columns:1fr 1fr; gap:1.2rem"],
  [style*="grid-template-columns:1fr 1fr;gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr;gap:0.75rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.75rem"],
  [style*="grid-template-columns:1fr 1fr 1fr"],
  [style*="grid-template-columns:2fr 1fr 1fr"],
  [style*="grid-template-columns: 2fr 1fr 1fr"],
  [style*="grid-template-columns:2fr 1fr"],
  [style*="grid-template-columns: 2fr 1fr"],
  [style*="grid-template-columns:1fr 2fr"],
  [style*="grid-template-columns: 1fr 2fr"],
  [style*="grid-template-columns:3fr 2fr"],
  [style*="grid-template-columns: 3fr 2fr"],
  [style*="grid-template-columns:1.2fr 0.8fr"],
  [style*="grid-template-columns: 1.2fr 0.8fr"] {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }

  /* 模块卡片内容保留两列的子 grid */
  [style*="grid-template-columns:1fr 1fr;gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr;gap:0.75rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.75rem"] {
    grid-template-columns: 1fr 1fr !important;
    gap: 0.5rem !important;
  }

  /* === Process Steps === */
  .process-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  .process-grid::before { display: none; }
  .process-icon { width: 60px; height: 60px; font-size: 1.4rem; margin-bottom: 0.8rem; }
  .process-num { right: calc(50% - 38px); top: -4px; }

  /* === Feature Cards === */
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 1.5rem; }
  .feature-icon { width: 48px; height: 48px; font-size: 1.3rem; }

  /* === Course Cards === */
  .course-card { margin-bottom: 0; }
  .course-header { padding: 1.2rem; }
  .course-body { padding: 1.2rem; }

  /* === Testimonials === */
  .testimonial-card { padding: 1.3rem; }
  .testimonial-quote { font-size: 2.5rem; top: 0.8rem; right: 1rem; }

  /* === News Cards === */
  .news-card-img { height: 140px; }
  .news-card-body { padding: 1rem; }

  /* === Info Table === */
  .info-table th,
  .info-table td { padding: 0.7rem 0.8rem; font-size: 0.85rem; }
  .info-table th { width: 100px; font-size: 0.82rem; }
  .table-wrapper { margin: 0 -0.5rem; padding: 0 0.5rem; }

  /* === Accordion === */
  .accordion-header { padding: 1rem 1.2rem; font-size: 0.92rem; }
  .accordion-body.open { padding: 0.8rem 1.2rem 1.2rem; }

  /* === Form === */
  .form-control { padding: 0.7rem 0.8rem; font-size: 1rem; /* 16px 防止 iOS 缩放 */ }

  /* === Section === */
  .section { padding: 2.5rem 0; }
  .section-header { margin-bottom: 1.5rem; }
  .section-title { font-size: 1.35rem; }

  /* === CTA Banner === */
  .cta-banner { padding: 2.5rem 0; }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  /* === Footer === */
  .footer { padding: 2rem 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; padding-bottom: 1.5rem; }
  .footer-heading { margin-bottom: 0.8rem; padding-bottom: 0.4rem; }

  /* === Floating CTA === */
  .floating-cta { bottom: 1rem; right: 0.8rem; gap: 0.4rem; }
  .floating-btn { width: 46px; height: 46px; font-size: 1.1rem; }
  .floating-btn-tooltip { display: none; }

  /* === Breadcrumb === */
  .breadcrumb { font-size: 0.75rem; margin-top: 0.8rem; }

  /* === Trust Bar (报名页) === */
  .trust-bar { padding: 1rem 0; }
  .trust-bar-inner { gap: 1rem; justify-content: space-around; }
  .trust-item { font-size: 0.8rem; gap: 0.4rem; }
  .trust-item-icon { width: 32px; height: 32px; font-size: 1rem; border-radius: 8px; }
  .trust-item strong { font-size: 0.95rem; }

  /* === Signup Page Mobile === */
  .signup-hero { padding: 2.5rem 0; }
  .signup-hero h1 { font-size: 1.5rem; }
  .signup-hero p { font-size: 0.9rem; }
  .signup-hero p br { display: none; }
  .form-card { padding: 1.2rem; }
  .form-card::before { height: 3px; }
  .signup-form .form-row { grid-template-columns: 1fr !important; }
  .signup-form .btn-submit { padding: 0.85rem; font-size: 1rem; }
  .promo-banner { padding: 1.2rem; }
  .promo-banner .promo-price { font-size: 2rem; }
  .countdown-item { min-width: 42px; padding: 0.3rem 0.4rem; }
  .countdown-item .num { font-size: 1.1rem; }
  .guarantee-card { padding: 1.2rem; }
  .guarantee-item { font-size: 0.85rem; gap: 0.5rem; }
  .contact-card { padding: 1.2rem; }
  .qrcode-placeholder { width: 110px; height: 110px; }
  .data-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 0.8rem !important; }
  .data-card { padding: 1rem; text-align: center; }
  .data-card-icon { font-size: 1.5rem; }
  .data-card-value { font-size: 1.5rem; }
  .data-card-label { font-size: 0.78rem; }
  .voice-grid,
  .notice-grid { grid-template-columns: 1fr !important; }
  .urgency-bar { font-size: 0.82rem; padding: 0.5rem 0.5rem; white-space: nowrap; overflow-x: auto; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr !important; }
  .hero-card-panel { display: none; }

  /* 模块子 grid 在极小屏幕也变单列 */
  [style*="grid-template-columns:1fr 1fr;gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.5rem"],
  [style*="grid-template-columns:1fr 1fr;gap:0.75rem"],
  [style*="grid-template-columns:1fr 1fr; gap:0.75rem"],
  [style*="grid-template-columns: repeat(4,1fr;gap:0.6rem"],
  [style*="grid-template-columns:repeat(4,1fr"] {
    grid-template-columns: 1fr !important;
  }

  .nav-logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
  .nav-inner { height: 56px; }
  .nav-menu { top: 56px; }
  .page-header { margin-top: 56px; }

  .floating-cta { bottom: 0.6rem; right: 0.6rem; }
  .floating-btn { width: 42px; height: 42px; font-size: 1rem; }
}

/* === Print === */
@media print {
  .nav, .floating-cta, .cta-banner { display: none; }
  .hero { min-height: auto; padding: 2rem 0; }
  body { color: #000; }
}