/* ========== 全新设计系统：鲸鱼AI助手 · 紫韵白调 ========== */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #faf9ff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --text-dark: #0a2540;
  --text-muted: #5f6c80;
  --accent: #766EE9;          /* 主色调：优雅紫罗兰 */
  --accent-dark: #5e54c9;     /* 加深紫 */
  --accent-glow: rgba(118, 110, 233, 0.2);
  --border-light: #edeef2;
  --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 25px 45px -12px rgba(118, 110, 233, 0.15);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --transition: all 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

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

body {
  font-family: 'Inter', 'Space Grotesk', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-dark);
  line-height: 1.5;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

/* 全局去除所有下划线 */
a, .btn-primary, .btn-outline, .btn-ghost, .btn-outline-light, 
.plugin-card-new a, .social-icons a, .footer-links a, .platform-item a,
.support-actions a {
  text-decoration: none !important;
}

a:hover, button:hover, .btn-primary:hover, .btn-outline:hover, .btn-ghost:hover {
  text-decoration: none !important;
}

.container {
  width: min(1280px, 92%);
  margin: 0 auto;
}

/* ========== 头部 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 32px;
}

.brand img {
  height: 44px;
  width: auto;
  transition: var(--transition);
}

.brand img:hover {
  opacity: 0.85;
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--accent);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  padding: 10px 28px;
  border-radius: 60px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 4px 12px var(--accent-glow);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(118, 110, 233, 0.35);
}

.btn-large {
  padding: 12px 32px;
  font-size: 1rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-dark);
  padding: 10px 24px;
  border-radius: 60px;
  font-weight: 500;
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 10px 24px;
  border-radius: 60px;
  font-weight: 500;
  transition: var(--transition);
}

.btn-ghost:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

/* ========== Hero 区域 ========== */
.hero {
  padding: 80px 0 100px;
  background: linear-gradient(145deg, #ffffff 0%, #fbfaff 100%);
  position: relative;
  overflow: hidden;
}

.hero-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.badge-glow {
  display: inline-block;
  background: rgba(118, 110, 233, 0.12);
  padding: 6px 16px;
  border-radius: 60px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.3px;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #0a2540, #4a3db3);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 90%;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-visual {
  position: relative;
}

.floating-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  transition: transform 0.3s ease;
}

.floating-card:hover {
  transform: translateY(-6px);
}

.feature-preview {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.05);
}

.feature-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.stack-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
}

.stack-row:last-child {
  border-bottom: none;
}

.stack-icon {
  font-size: 28px;
  width: 48px;
  text-align: center;
}

.stack-row strong {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
}

.stack-row span {
  font-size: 14px;
  color: var(--text-muted);
}

/* ========== 通用区块 ========== */
.section {
  padding: 100px 0;
}

.section-light {
  background: var(--bg-secondary);
}

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

.section-header h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.section-header p {
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
  font-size: 17px;
}

/* ========== 兼容性表格（玻璃态） ========== */
.glass-table {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.table-responsive {
  overflow-x: auto;
}

.modern-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 680px;
}

.modern-table th {
  background: #f9f8ff;
  padding: 18px 20px;
  font-weight: 600;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border-light);
  text-align: left;
}

.modern-table td {
  padding: 14px 20px;
  border-bottom: 1px solid #f0f0f5;
  color: var(--text-muted);
}

.modern-table tr:last-child td {
  border-bottom: none;
}

.modern-table tbody tr:hover td {
  background: #fdfbff;
}

/* ========== 插件卡片网格 ========== */
.plugin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  margin-top: 20px;
}

.plugin-card-new {
  background: white;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.plugin-card-new:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(118, 110, 233, 0.2);
}

.plugin-icon {
  width: 70px;
  height: 70px;
  background: #f1efff;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.plugin-icon img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
}

.plugin-card-new h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.plugin-card-new p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.plugin-card-new a {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.plugin-card-new a:hover {
  gap: 12px;
}

/* ========== 多端支持（双栏渐变） ========== */
.section-gradient-alt {
  background: linear-gradient(105deg, #fbfaff 0%, #ffffff 100%);
}

.platforms-modern {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.platforms-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.platforms-info p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.platform-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.platform-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.platform-item span {
  font-weight: bold;
  font-size: 16px;
}

.platform-item a {
  color: var(--accent);
  font-weight: 500;
  font-size: 16px;
}

.platform-item:hover {
  transform: translateX(6px);
  border-color: var(--accent);
}

/* 二维码区域 - 放大美观 */
.qr-modern {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  text-align: center;
  transition: var(--transition);
}

.qr-modern:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 50px -20px rgba(118, 110, 233, 0.2);
}

.qr-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text-dark), var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.qr-modern p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.qr-dual {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.qr-item {
  text-align: center;
  flex: 0 0 auto;
}

.qr-item img {
  width: 160px;
  height: auto;
  border-radius: 24px;
  margin-bottom: 16px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
  background: white;
  padding: 8px;
  border: 1px solid var(--border-light);
}

.qr-item img:hover {
  transform: scale(1.02);
}

.qr-item span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
  display: block;
  margin-top: 8px;
}

/* ========== 产品优势卡片 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 24px;
}

.feature-item {
  background: white;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  text-align: center;
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  background: #f1efff;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.feature-icon img {
  width: 36px;
  height: 36px;
}

.feature-item h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.keyword {
  background: #f1efff;
  padding: 8px 20px;
  border-radius: 60px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  transition: var(--transition);
  border: 1px solid transparent;
}

.keyword:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
  border-color: var(--accent);
}

/* ========== FAQ 全新两栏卡片 ========== */
.section-faq {
  background: var(--bg-secondary);
}

.faq-accordion-container {
  margin-top: 32px;
}

.faq-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
}

.faq-cat-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  height: fit-content;
}

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

.faq-cat-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
  color: var(--text-dark);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq-q-item {
  border-left: 3px solid var(--accent-glow);
  padding-left: 16px;
}

.faq-q {
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 1rem;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.faq-q::before {
  content: "Q";
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  font-weight: bold;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 30px;
  flex-shrink: 0;
}

.faq-a {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  padding-left: 32px;
}

/* ========== 支持团队 ========== */
.support-new {
  background: white;
  border-top: 1px solid var(--border-light);
}

.support-flex {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.support-left h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.support-left p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn-outline-light {
  background: transparent;
  border: 1px solid var(--border-light);
  padding: 10px 28px;
  border-radius: 60px;
  font-weight: 500;
  transition: var(--transition);
  color: var(--text-dark);
}

.btn-outline-light:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.social-card {
  background: #fbfaff;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border-light);
}

.social-card h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.social-card p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.social-icons {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.social-icons a, .wechat-trigger-new {
  color: var(--accent);
  font-weight: bold;
  cursor: pointer;
  position: relative;
}

.wechat-trigger-new {
  display: inline-block;
}

.wechat-qr-popup {
  position: absolute;
  bottom: 150%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  padding: 12px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  width: 140px;
  opacity: 0;
  pointer-events: none;
  transition: 0.2s;
  z-index: 50;
  border: 1px solid var(--border-light);
}

.wechat-trigger-new:hover .wechat-qr-popup {
  opacity: 1;
  pointer-events: auto;
}

.wechat-qr-popup img {
  width: 100%;
  border-radius: 12px;
}

.contact-email {
  background: white;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.contact-email strong {
  /* font-family: monospace; */
  color: var(--text-dark);
}

/* ========== 页脚 ========== */
.footer {
  background: #0a1929;
  color: #b0c4e7;
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand img {
  height: 44px;
  filter: brightness(0) invert(1);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: #8ba5c9;
}

.footer-links h4 {
  color: white;
  font-weight: 600;
  margin-bottom: 20px;
  font-size: 1rem;
}

.footer-links a {
  display: block;
  margin-bottom: 12px;
  color: #b0c4e7;
  transition: var(--transition);
  font-size: 15px;
}

.footer-links a:hover {
  color: white;
  transform: translateX(4px);
}

.copyright {
  text-align: center;
  font-size: 13px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: #8ba5c9;
}

.copyright a {
  color: #8ba5c9;
}

.copyright a:hover {
  color: white;
}

/* ========== 响应式调整 ========== */
@media (max-width: 1024px) {
  .hero-wrapper, .platforms-modern, .support-flex {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-description {
    max-width: 100%;
  }
  .nav-links {
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .hero {
    padding: 50px 0 70px;
  }
  .header-inner .btn-primary {
    padding: 8px 20px;
  }
  .nav-links {
    display: none;
  }
  .faq-columns {
    grid-template-columns: 1fr;
  }
  .qr-dual {
    gap: 28px;
  }
  .qr-item img {
    width: 130px;
  }
  .hero-buttons a {
    width: 100%;
    text-align: center;
  }
  .platform-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .qr-modern {
    padding: 28px 20px;
  }
  .qr-title {
    font-size: 1.5rem;
  }
}