/* ===== 汇赢国际pg - 独特视觉设计系统 ===== */
/* 风格：野兽派 + 渐变流体 + 大胆排版 */
/* 配色：深紫黑 (#0a0015) + 霓虹橙 (#ff6a00) + 铬绿 (#00ff88) */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;500;700;900&display=swap');

:root {
  --bg-primary: #0a0015;
  --bg-secondary: #120022;
  --bg-card: #1a0030;
  --accent-1: #ff6a00;
  --accent-2: #00ff88;
  --accent-3: #ff00aa;
  --text-primary: #ffffff;
  --text-secondary: rgba(255,255,255,0.7);
  --text-muted: rgba(255,255,255,0.4);
  --gradient-hero: linear-gradient(135deg, #0a0015 0%, #2a0050 50%, #ff6a00 100%);
  --gradient-card: linear-gradient(145deg, #1a0030, #0d0018);
  --gradient-accent: linear-gradient(90deg, #ff6a00, #ff00aa);
  --shadow-strong: 0 20px 60px rgba(255,106,0,0.3);
  --border-glow: 0 0 15px rgba(0,255,136,0.3);
  --font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
}

/* ===== 头部 - 野兽派玻璃态 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 0, 21, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 2px solid rgba(255, 106, 0, 0.2);
  transition: var(--transition-smooth);
}

.site-header:hover {
  border-bottom-color: var(--accent-1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 40px;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
  position: relative;
  padding-left: 10px;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.logo::before {
  content: '◆';
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  -webkit-text-fill-color: var(--accent-2);
  font-size: 1.5rem;
  animation: pulse-glow 2s infinite;
}

.logo:hover {
  transform: scale(1.05) skewX(-5deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.main-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  position: relative;
  padding: 8px 0;
  transition: var(--transition-smooth);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-accent);
  transition: width 0.4s ease;
}

.main-nav a:hover {
  color: var(--text-primary);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--gradient-accent);
  color: var(--text-primary) !important;
  padding: 12px 28px !important;
  border-radius: 50px;
  font-weight: 700 !important;
  border: none;
  transition: var(--transition-smooth);
  box-shadow: 0 0 30px rgba(255,106,0,0.2);
}

.nav-cta:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 40px rgba(255,106,0,0.4);
}

.nav-cta::after {
  display: none !important;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  background: transparent;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 30px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: var(--transition-smooth);
}

/* ===== 英雄区 - 大纵深野兽派 ===== */
.hero {
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255,106,0,0.15) 0%, transparent 70%);
  animation: float 20s infinite alternate ease-in-out;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,255,136,0.1) 0%, transparent 70%);
  animation: float 25s infinite alternate-reverse ease-in-out;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 80px 0;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(0,255,136,0.1);
  padding: 8px 20px;
  border-radius: 50px;
  border: 1px solid rgba(0,255,136,0.3);
  margin-bottom: 30px;
  animation: fadeInUp 0.8s ease;
}

.hero-content h1 {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 30px;
  text-shadow: 0 4px 40px rgba(255,106,0,0.3);
}

.hero-content h1 span {
  display: block;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: 1.3rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 50px;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-image {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  max-width: 650px;
  opacity: 0.7;
  mix-blend-mode: screen;
  pointer-events: none;
}

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 40px;
  border-radius: 60px;
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-family);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--text-primary);
  box-shadow: 0 8px 40px rgba(255,106,0,0.3);
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 15px 60px rgba(255,106,0,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--accent-2);
  background: rgba(0,255,136,0.05);
  box-shadow: 0 0 30px rgba(0,255,136,0.2);
  transform: translateY(-4px);
}

/* ===== 通用区块 ===== */
.section {
  padding: 140px 0;
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 20px;
  position: relative;
  padding-left: 60px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 40px;
  height: 2px;
  background: var(--accent-1);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 30px;
}

.section-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-top: 80px;
}

.category-card {
  background: var(--gradient-card);
  border-radius: 24px;
  padding: 50px 40px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s ease;
}

.category-card:hover {
  transform: translateY(-15px);
  border-color: rgba(255,106,0,0.3);
  box-shadow: var(--shadow-strong);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  font-size: 3.5rem;
  margin-bottom: 30px;
  display: block;
  filter: drop-shadow(0 0 20px rgba(255,106,0,0.3));
}

.category-card h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.category-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 25px;
}

.card-link {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.card-link:hover {
  gap: 15px;
  color: var(--accent-1);
}

/* ===== 特色区块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-top: 80px;
}

.feature-image {
  width: 100%;
  height: 500px;
  background: var(--gradient-card);
  border-radius: 30px;
  border: 1px solid rgba(255,106,0,0.2);
  position: relative;
  overflow: hidden;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,106,0,0.1));
}

.feature-text h3 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 25px;
}

.feature-text p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 30px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 1.05rem;
  padding: 12px 20px;
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
  border-left: 3px solid var(--accent-2);
  transition: var(--transition-smooth);
}

.feature-list li:hover {
  background: rgba(0,255,136,0.05);
  transform: translateX(10px);
}

.feature-list li::before {
  content: '✦';
  color: var(--accent-2);
  font-size: 1.2rem;
}

/* ===== 统计栏 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  padding: 80px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  margin: 80px 0;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-number {
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

/* ===== 内容墙 ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.content-wall-item {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(255,255,255,0.03);
  transition: var(--transition-smooth);
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-8px);
  border-color: rgba(0,255,136,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.content-wall-body h4 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.content-wall-body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 60px auto 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 25px 35px;
  border: 1px solid rgba(255,255,255,0.03);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: rgba(255,106,0,0.2);
}

.faq-item summary {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.8rem;
  color: var(--accent-1);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding-top: 20px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 1rem;
}

/* ===== CTA横幅 ===== */
.cta-banner {
  background: var(--gradient-hero);
  border-radius: 40px;
  padding: 100px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 100px 0;
  border: 1px solid rgba(255,106,0,0.2);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,255,136,0.1), transparent);
  animation: float 15s infinite alternate;
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 40px;
  position: relative;
  z-index: 2;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 25px;
  display: inline-block;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.footer-col a:hover {
  color: var(--accent-2);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== 辅助类 ===== */
.text-accent {
  color: var(--accent-1);
}

.text-center {
  text-align: center;
}

.seo-description {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ===== 动画 ===== */
@keyframes float {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(50px, -50px) rotate(5deg); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; text-shadow: 0 0 20px rgba(0,255,136,0.5); }
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .feature-image {
    height: 350px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .header-inner {
    padding: 0 20px;
    height: 70px;
  }
  .main-nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 0, 21, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 40px;
    gap: 25px;
    border-bottom: 2px solid var(--accent-1);
  }
  .main-nav.active {
    display: flex;
  }
  .menu-toggle {
    display: flex;
  }
  .hero-content h1 {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }
  .hero-image {
    display: none;
  }
  .section {
    padding: 80px 0;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .stats-bar {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 50px 0;
  }
  .stat-number {
    font-size: 3rem;
  }
  .cta-banner {
    padding: 60px 30px;
    border-radius: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  .header-inner {
    padding: 0 15px;
    height: 60px;
  }
  .logo {
    font-size: 1.6rem;
  }
  .hero-content {
    padding: 40px 0;
  }
  .hero-content h1 {
    font-size: 2.2rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .hero-buttons {
    flex-direction: column;
  }
  .btn {
    width: 100%;
    justify-content: center;
    padding: 15px 30px;
  }
  .section-title {
    font-size: 2rem;
  }
  .section-desc {
    font-size: 1rem;
  }
  .category-card {
    padding: 30px 25px;
  }
  .stats-bar {
    grid-template-columns: 1fr;
  }
  .stat-number {
    font-size: 2.5rem;
  }
  .cta-banner {
    padding: 40px 20px;
  }
  .cta-banner h2 {
    font-size: 1.8rem;
  }
  .faq-item {
    padding: 18px 20px;
  }
  .content-wall {
    grid-template-columns: 1fr;
  }
}