/* ========================================
   高分之道 - 主题样式
   主色调: 深蓝色系 + 金橙点缀
   ======================================== */

:root {
  --deep-navy: #0a1628;
  --navy: #0f2142;
  --blue: #1a3a6b;
  --mid-blue: #2563a0;
  --light-blue: #3b82c4;
  --gold: #f0883e;
  --gold-light: #f5a623;
  --gold-pale: #fef3e7;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; color: var(--gray-900); }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

a { color: var(--mid-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold); }

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  margin: 6px 0;
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-lg);
    gap: 0;
  }
  .nav-links.open {
    display: flex !important;
  }
  .nav-links a {
    display: block;
    padding: 14px 24px;
    border-radius: 0;
    font-size: 1rem;
  }
  .nav-links a:hover,
  .nav-links a.active {
    background: rgba(255,255,255,0.05);
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(160deg, var(--deep-navy) 0%, var(--navy) 30%, var(--blue) 70%, #1e4d8c 100%);
  overflow: hidden;
  padding: 100px 24px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(240, 136, 62, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59, 130, 196, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(245, 166, 35, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-particles .particle {
  position: absolute;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
  letter-spacing: 1px;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
  line-height: 1.8;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(240, 136, 62, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(240, 136, 62, 0.45);
  color: var(--white);
}

.btn-outline {
  border: 2px solid rgba(255,255,255,0.3);
  color: var(--white);
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--mid-blue);
  padding: 10px 20px;
  font-size: 0.95rem;
}

.btn-ghost:hover {
  color: var(--gold);
  background: rgba(240, 136, 62, 0.05);
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 28px;
  height: 28px;
  opacity: 0.5;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========================================
   Section Common
   ======================================== */
.section {
  padding: 80px 24px;
}

.section-dark {
  background: var(--gray-50);
}

.section-accent {
  background: linear-gradient(160deg, var(--deep-navy), var(--navy));
  color: var(--white);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  margin-bottom: 12px;
}

.section-header p {
  color: var(--gray-500);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-header h2 { color: var(--gray-900); }
.section-accent .section-header h2 { color: var(--white); }
.section-accent .section-header p { color: rgba(255,255,255,0.65); }

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ========================================
   Tagline Bar
   ======================================== */
.tagline-bar {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--white);
  text-align: center;
  padding: 28px 24px;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ========================================
   Stats Row
   ======================================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 4px;
}

.stat-label {
  color: var(--gray-500);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .stats-row { grid-template-columns: 1fr; }
}

/* ========================================
   Feature Cards (3-col)
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--mid-blue));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before {
  opacity: 1;
}

.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: 20px;
}

.feature-icon.blue { background: rgba(26, 58, 107, 0.08); }
.feature-icon.gold { background: rgba(240, 136, 62, 0.1); }
.feature-icon.green { background: rgba(16, 185, 129, 0.08); }

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: var(--gray-900);
}

.feature-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.7;
}

.feature-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--mid-blue);
}

.feature-card .card-link:hover {
  color: var(--gold);
}

@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Service Detail Cards (2-col)
   ======================================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.service-card-image.navy {
  background: linear-gradient(135deg, var(--navy), var(--blue));
}

.service-card-image.gold-bg {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
}

.service-card-body {
  padding: 32px 28px;
}

.service-card-body h3 {
  margin-bottom: 10px;
}

.service-card-body p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-list {
  list-style: none;
  margin: 16px 0;
}

.service-list li {
  padding: 6px 0;
  color: var(--gray-600);
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.service-list li::before {
  content: '✦';
  color: var(--gold);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .service-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Promise/Guarantee Cards
   ======================================== */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.promise-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.promise-item:hover {
  border-color: var(--mid-blue);
  box-shadow: var(--shadow-sm);
}

.promise-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.promise-item h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.promise-item p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .promise-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Partner/Trust Section
   ======================================== */
.trust-section {
  text-align: center;
  padding: 48px 24px;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.trust-section p {
  color: var(--gray-500);
  max-width: 680px;
  margin: 0 auto 12px;
  font-size: 0.95rem;
}

.trust-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.trust-logo {
  padding: 12px 24px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  font-weight: 700;
  color: var(--gray-600);
  font-size: 0.95rem;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  text-align: center;
  padding: 72px 24px;
  background: linear-gradient(160deg, var(--navy), var(--blue));
  color: var(--white);
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

/* ========================================
   Page Hero (non-index)
   ======================================== */
.page-hero {
  position: relative;
  padding: 140px 24px 80px;
  background: linear-gradient(160deg, var(--deep-navy), var(--navy));
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(240, 136, 62, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero h1 {
  color: var(--white);
  position: relative;
  z-index: 1;
  margin-bottom: 12px;
}

.page-hero p {
  color: rgba(255,255,255,0.65);
  font-size: 1.15rem;
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Resource Tabs (资源库)
   ======================================== */
.resource-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 48px;
}

.resource-tab {
  padding: 10px 22px;
  border-radius: 50px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.resource-tab:hover,
.resource-tab.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.resource-module {
  display: none;
  margin-bottom: 48px;
}

.resource-module.active {
  display: block;
}

.resource-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.resource-block h3 {
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.resource-block .module-icon {
  font-size: 1.8rem;
}

.resource-block p {
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 16px;
}

.resource-points {
  list-style: none;
  margin: 16px 0;
}

.resource-points li {
  padding: 8px 0;
  color: var(--gray-600);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.resource-points li::before {
  content: '▸';
  color: var(--gold);
  flex-shrink: 0;
}

.subject-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.subject-tag {
  padding: 6px 16px;
  background: var(--gray-100);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--gray-900);
  transition: var(--transition);
  user-select: none;
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question .faq-arrow {
  transition: var(--transition);
  font-size: 0.8rem;
  color: var(--gray-400);
}

.faq-item.open .faq-question .faq-arrow {
  transform: rotate(180deg);
  color: var(--gold);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ========================================
   Company Info Card
   ======================================== */
.info-card {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--gray-200);
}

.info-card h3 {
  margin-bottom: 16px;
  color: var(--navy);
}

.info-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.info-card .info-label {
  font-size: 0.85rem;
  color: var(--gray-400);
}

.info-card .info-value {
  color: var(--gray-700);
  font-weight: 500;
}

@media (max-width: 500px) {
  .info-card-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Cooperation Cards
   ======================================== */
.coop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.coop-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.coop-card:hover {
  box-shadow: var(--shadow-md);
}

.coop-card .coop-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.coop-card h3 {
  margin-bottom: 16px;
}

.coop-card ul {
  list-style: none;
  margin: 16px 0;
}

.coop-card ul li {
  padding: 6px 0;
  color: var(--gray-600);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.coop-card ul li::before {
  content: '✓';
  color: var(--gold);
  font-weight: 700;
}

.coop-card .coop-note {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--gold-pale);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--gray-600);
}

@media (max-width: 768px) {
  .coop-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Contact Layout
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-card .contact-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.contact-card h3 {
  margin-bottom: 8px;
}

.contact-card .contact-info {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.contact-card .contact-value {
  color: var(--gray-700);
  font-weight: 600;
  font-size: 1rem;
}

@media (max-width: 600px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Legal Section
   ======================================== */
.legal-section {
  background: var(--gray-50);
  padding: 48px 0;
}

.legal-section h3 {
  margin-bottom: 16px;
  color: var(--navy);
}

.legal-block {
  margin-bottom: 24px;
}

.legal-block h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--gray-800);
}

.legal-block p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.8;
}

.legal-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.legal-links a {
  color: var(--mid-blue);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ========================================
   Resource Usage Guide
   ======================================== */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.guide-step {
  text-align: center;
  padding: 24px 16px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  position: relative;
}

.guide-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.guide-step p {
  color: var(--gray-600);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .guide-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 400px) {
  .guide-steps { grid-template-columns: 1fr; }
}

/* ========================================
   Breadcrumb
   ======================================== */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  justify-content: center;
}

.breadcrumb a {
  color: rgba(255,255,255,0.6);
}

.breadcrumb a:hover {
  color: var(--white);
}

.breadcrumb span {
  color: rgba(255,255,255,0.3);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--deep-navy);
  color: rgba(255,255,255,0.45);
  padding: 48px 24px 32px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  max-width: 440px;
}

.footer-brand .footer-company {
  font-size: 0.85rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.38);
  margin-bottom: 4px;
}

.footer-brand .footer-tel {
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--gold-light);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.footer-brand .footer-tel:hover {
  color: #fff;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-start;
  padding-top: 4px;
}

.footer-links a {
  color: rgba(255,255,255,0.35);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
}

.footer-bottom p {
  margin-bottom: 4px;
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* JS动画增强：仅当JS成功设置observer后才隐藏 */
.fade-in.animate-ready {
  opacity: 0;
  transform: translateY(24px);
}

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

/* ========================================
   Misc
   ======================================== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

.section-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 2px;
  margin: 16px auto 0;
}