:/* 九游娱乐 - 完整样式表 */
:root {
  --primary: #1a1a2e;
  --secondary: #16213e;
  --accent: #e94560;
  --accent2: #0f3460;
  --text: #f0f0f0;
  --card-bg: rgba(255, 255, 255, 0.05);
  --glass: rgba(255, 255, 255, 0.1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --transition: 0.3s ease;
  --max-width: 1200px;
  --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--primary);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: #ff6b81;
}

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  text-align: center;
  background: linear-gradient(135deg, #e94560, #0f3460);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: #aaa;
  margin-bottom: 50px;
  font-size: 1.05rem;
}

.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, #e94560, #0f3460);
  color: #fff;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.6);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

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

.glass-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background var(--transition);
}

header.scrolled {
  background: rgba(26, 26, 46, 0.98);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #e94560, #ff6b81);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav ul {
  display: flex;
  gap: 25px;
}

nav ul li a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 5px 0;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

nav ul li a:hover::after,
nav ul li a.active::after {
  width: 100%;
}

nav ul li a.active {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.menu-toggle span {
  width: 28px;
  height: 3px;
  background: var(--text);
  border-radius: 3px;
  transition: all var(--transition);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(15, 52, 96, 0.2) 0%, transparent 50%);
  animation: heroGlow 15s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(5%, 5%);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
  background: linear-gradient(135deg, #fff, #e94560);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: #ccc;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.banner-carousel {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto 40px;
  overflow: hidden;
  border-radius: var(--radius);
}

.banner-slides {
  display: flex;
  transition: transform 0.6s ease;
}

.banner-slide {
  min-width: 100%;
  padding: 60px 40px;
  text-align: center;
  background: linear-gradient(135deg, rgba(233, 69, 96, 0.2), rgba(15, 52, 96, 0.3));
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.banner-slide h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.banner-slide p {
  color: #ddd;
  margin-bottom: 20px;
}

.banner-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.banner-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: background var(--transition);
}

.banner-dots span.active {
  background: var(--accent);
}

.brand-intro {
  background: var(--secondary);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.brand-card {
  text-align: center;
  padding: 40px 20px;
}

.brand-card svg {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
}

.brand-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.brand-card p {
  color: #bbb;
  font-size: 0.95rem;
}

.story-timeline {
  position: relative;
  padding: 40px 0;
}

.story-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, #e94560, transparent);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding: 30px 0;
  position: relative;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  align-self: flex-start;
  justify-content: flex-start;
  margin-left: 50%;
}

.timeline-item .content {
  background: var(--glass);
  backdrop-filter: blur(8px);
  padding: 20px;
  border-radius: var(--radius);
  max-width: 350px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-item .year {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.product-card {
  text-align: center;
  padding: 40px 20px;
}

.product-card svg {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
}

.product-card h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.product-card p {
  color: #bbb;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.service-card {
  text-align: center;
  padding: 30px 20px;
}

.service-card svg {
  width: 56px;
  height: 56px;
  margin-bottom: 15px;
}

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.case-card {
  padding: 25px;
  text-align: left;
}

.case-card svg {
  width: 100%;
  height: 180px;
  border-radius: 12px;
  margin-bottom: 15px;
  object-fit: cover;
}

.case-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.case-card p {
  color: #bbb;
  font-size: 0.9rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.testimonial-card {
  padding: 30px;
  text-align: center;
}

.testimonial-card .quote {
  font-style: italic;
  color: #ddd;
  margin-bottom: 15px;
}

.testimonial-card .author {
  font-weight: 600;
  color: var(--accent);
}

.partners-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  padding: 40px 0;
}

.partner-item {
  text-align: center;
  padding: 20px;
}

.partner-item svg {
  width: 80px;
  height: 80px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.partner-item:hover svg {
  opacity: 1;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.news-card {
  padding: 25px;
}

.news-card .date {
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.news-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.news-card p {
  color: #bbb;
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 15px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 10px 0;
}

.faq-question span {
  font-size: 1.5rem;
  transition: transform var(--transition);
}

.faq-question.active span {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  color: #bbb;
  font-size: 0.95rem;
  padding: 0 10px;
}

.faq-answer.open {
  max-height: 500px;
  padding: 15px 10px;
}

.howto-steps {
  max-width: 700px;
  margin: 40px auto;
}

.howto-step {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  align-items: flex-start;
}

.howto-step .step-num {
  background: var(--accent);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.howto-step .step-content h4 {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.howto-step .step-content p {
  color: #bbb;
  font-size: 0.95rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.contact-card {
  text-align: center;
  padding: 30px;
}

.contact-card svg {
  width: 48px;
  height: 48px;
  margin-bottom: 15px;
}

.contact-card h3 {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.contact-card p {
  color: #bbb;
  font-size: 0.95rem;
}

footer {
  background: var(--secondary);
  padding: 60px 20px 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #aaa;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: #888;
  font-size: 0.85rem;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.footer-bottom a {
  color: #aaa;
}

.footer-bottom a:hover {
  color: var(--accent);
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
}

.dark-mode-toggle {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  z-index: 999;
  transition: all var(--transition);
}

.dark-mode-toggle:hover {
  background: var(--accent);
  color: #fff;
}

body.dark {
  --primary: #0d0d1a;
  --secondary: #111122;
  --text: #e0e0e0;
  --card-bg: rgba(255, 255, 255, 0.03);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
  }

  nav ul.open {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .timeline-item {
    width: 100%;
    margin-left: 0 !important;
    justify-content: flex-start !important;
    padding-left: 30px;
  }

  .story-timeline::before {
    left: 15px;
  }

  .banner-slide {
    padding: 40px 20px;
  }

  .banner-slide h3 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 50px 0;
  }

  .brand-grid,
  .products-grid,
  .services-grid,
  .cases-grid,
  .testimonials-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
}