/* ===================================
   研祥城市广场 - 全屏滚动单页样式
   PPT风格扁平化设计
   =================================== */

:root {
  --color-primary: #1e88e5;
  --color-primary-dark: #1565c0;
  --color-primary-light: #e3f2fd;
  --color-secondary: #ff6f00;
  --color-text: #2c3e50;
  --color-text-light: #546e7a;
  --color-bg: #ffffff;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  overflow: hidden;
}

/* Page Container */
.page-container {
  height: 100vh;
  width: 100vw;
  position: relative;
  overflow: hidden;
}

/* Full Page Sections */
.full-page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
  z-index: 1;
}

.full-page.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

/* Page Backgrounds */
.page-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.bg-gradient-1 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-gradient-2 {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.bg-gradient-3 {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.bg-gradient-4 {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.bg-gradient-5 {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.bg-gradient-6 {
  background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

.bg-gradient-7 {
  background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.bg-gradient-8 {
  background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

/* Page Content */
.page-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  padding: 60px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.content-wrapper {
  width: 100%;
  max-width: 1000px;
}

/* Fixed Navigation */
.fixed-nav {
  position: fixed;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.nav-logo {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-dots {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.nav-dot:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: scale(1.2);
}

.nav-dot.active {
  background: #fff;
  border-color: var(--color-primary);
  transform: scale(1.3);
}

.nav-phone {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.nav-phone:hover {
  transform: scale(1.05);
  color: var(--color-primary-light);
}

/* Hero Section */
.hero-content {
  text-align: center;
  color: #fff;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 20px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 40px;
  opacity: 0.95;
  font-weight: 400;
}

.hero-tags {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.tag {
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-cta {
  display: inline-block;
  padding: 18px 48px;
  background: #fff;
  color: var(--color-primary);
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}

.hero-cta:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.scroll-text {
  font-size: 0.9rem;
  opacity: 0.8;
}

.scroll-arrow {
  font-size: 2rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Page Title */
.page-title {
  font-size: 3rem;
  font-weight: 800;
  color: #fff;
  text-align: center;
  margin-bottom: 60px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* Intro Grid */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.intro-card {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.intro-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.card-icon {
  font-size: 4rem;
  margin-bottom: 20px;
}

.intro-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 15px;
}

.intro-card p {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* Features Showcase */
.features-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-item {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.feature-icon-large {
  font-size: 5rem;
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
}

.feature-image-placeholder {
  height: 200px;
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature-image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-item h3 {
  padding: 20px 20px 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

.feature-item p {
  padding: 0 20px 20px;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* Specs Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.spec-card {
  background: rgba(255, 255, 255, 0.95);
  padding: 30px 20px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.spec-card:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

.spec-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.spec-label {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* Companies List */
.companies-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.company-item {
  background: rgba(255, 255, 255, 0.95);
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  font-size: 0.95rem;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.company-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

/* Transport Info */
.transport-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.transport-section {
  background: rgba(255, 255, 255, 0.95);
  padding: 30px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.transport-section h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 15px;
}

.transport-section p {
  font-size: 1rem;
  color: var(--color-text-light);
}

.transport-section ul {
  list-style: none;
}

.transport-section li {
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--color-text-light);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.transport-section li:last-child {
  border-bottom: none;
}

/* Rental Info */
.rental-info {
  text-align: center;
}

.rental-highlight {
  background: rgba(255, 255, 255, 0.95);
  padding: 50px 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 40px;
}

.price-tag {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  margin-bottom: 15px;
}

.price-range {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-primary);
}

.price-unit {
  font-size: 1.5rem;
  color: var(--color-text-light);
}

.price-note {
  font-size: 1.1rem;
  color: var(--color-text-light);
}

.available-areas {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  margin-bottom: 40px;
}

.available-areas h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 25px;
}

.area-options {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.area-badge {
  padding: 12px 24px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
}

.area-badge:hover {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.1);
}

.rental-contact {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
}

.contact-note {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 25px;
}

.cta-button-large {
  display: inline-block;
  padding: 20px 50px;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.cta-button-large:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.contact-card {
  background: rgba(255, 255, 255, 0.95);
  padding: 50px 30px;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.contact-icon-large {
  font-size: 5rem;
  margin-bottom: 20px;
}

.contact-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
}

.contact-phone-large {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
  transition: var(--transition);
}

.contact-phone-large:hover {
  color: var(--color-primary-dark);
  transform: scale(1.05);
}

.contact-role {
  font-size: 1.1rem;
  color: var(--color-text-light);
}

.contact-details {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

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

.detail-label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.detail-value {
  font-size: 1.05rem;
  color: var(--color-text);
  font-weight: 600;
}

/* Friends Links Section */
.friends-links-section {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
}

.links-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 30px;
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.link-item {
  padding: 12px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 10px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.link-item:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* Animations */
.animate-fade-in {
  animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay {
  animation: fadeIn 1s ease-out 0.2s both;
}

.animate-fade-in-delay-2 {
  animation: fadeIn 1s ease-out 0.4s both;
}

.animate-fade-in-delay-3 {
  animation: fadeIn 1s ease-out 0.6s both;
}

.animate-fade-in-delay-4 {
  animation: fadeIn 1s ease-out 0.8s both;
}

.animate-fade-in-delay-5 {
  animation: fadeIn 1s ease-out 1s both;
}

.animate-fade-in-delay-6 {
  animation: fadeIn 1s ease-out 1.2s both;
}

.animate-fade-in-delay-7 {
  animation: fadeIn 1s ease-out 1.4s both;
}

.animate-fade-in-delay-8 {
  animation: fadeIn 1s ease-out 1.6s both;
}

.animate-fade-in-delay-9 {
  animation: fadeIn 1s ease-out 1.8s both;
}

.animate-fade-in-delay-10 {
  animation: fadeIn 1s ease-out 2s both;
}

.animate-slide-up {
  animation: slideUp 1s ease-out;
}

.animate-scale-in {
  animation: scaleIn 1s ease-out 0.2s both;
}

.animate-scale-in-delay {
  animation: scaleIn 1s ease-out 0.4s both;
}

.animate-scale-in-delay-2 {
  animation: scaleIn 1s ease-out 0.6s both;
}

.animate-bounce {
  animation: bounce 2s infinite;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .intro-grid,
  .features-showcase,
  .companies-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .specs-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .links-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .page-title {
    font-size: 2rem;
    margin-bottom: 40px;
  }

  .intro-grid,
  .features-showcase,
  .transport-info {
    grid-template-columns: 1fr;
  }

  .specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .companies-list {
    grid-template-columns: 1fr;
  }

  .contact-details {
    grid-template-columns: 1fr;
  }

  .links-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fixed-nav {
    right: 15px;
  }

  .nav-logo,
  .nav-phone {
    display: none;
  }

  .price-range {
    font-size: 3rem;
  }

  .contact-phone-large {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-tags {
    gap: 10px;
  }

  .tag {
    padding: 8px 16px;
    font-size: 0.9rem;
  }

  .specs-grid {
    grid-template-columns: 1fr;
  }

  .links-grid {
    grid-template-columns: 1fr;
  }

  .area-badge {
    padding: 10px 18px;
    font-size: 0.9rem;
  }
}