/* ============================================
   山西哈特人工智能科技有限公司 - 门户网站样式
   配色严格遵循 portal.jpg 设计稿
   ============================================ */

/* ---------- 隐藏滚动条（保留滚动能力） ---------- */
html {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE / 旧 Edge */
}
html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none; /* Chrome / Safari / 新版 Edge */
}

/* ---------- CSS 变量（设计稿色值） ---------- */
:root {
  /* 主色调 */
  --color-orange: #FF6B00;
  --color-orange-light: #FFF3E8;
  --color-orange-dark: #E55D00;

  /* 蓝色系 */
  --color-blue: #1890FF;
  --color-blue-light: #E6F7FF;
  --color-blue-dark: #096DD9;

  /* 绿色系 */
  --color-green: #52C41A;
  --color-green-light: #F6FFED;

  /* 深色系 */
  --color-navy: #1A2B4C;
  --color-navy-dark: #131E33;
  --color-text-primary: #1A1A2E;
  --color-text-secondary: #5A5A6E;
  --color-text-light: #8C8CA0;

  /* 背景色 */
  --color-bg-white: #FFFFFF;
  --color-bg-gray: #F7F8FC;
  --color-bg-light: #FAFBFD;

  /* 边框/分割线 */
  --color-border: #EEF0F6;
  --color-border-light: #F0F2F8;

  /* 卡片图标色 */
  --icon-blue: #1890FF;
  --icon-orange: #FF6B00;
  --icon-green: #52C41A;
  --icon-purple: #722ED1;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;
  --font-size-title: 32px;
  --font-size-banner: 40px;

  /* 间距 */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 80px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ---------- 全局重置 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ---------- 工具类 ---------- */
.text-orange { color: var(--color-orange) !important; }
.text-green { color: var(--color-green) !important; }
.text-white { color: #FFFFFF !important; }
.text-highlight { color: var(--color-text-primary); }

.dots {
  letter-spacing: 4px;
  color: var(--color-text-light);
  font-weight: 300;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}

.navbar-inner {
  width: 100%;
  margin: 0;
  padding: 0 0 0 var(--spacing-md);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

/* 导航栏品牌区（logo + 公司名称） */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: var(--spacing-xxl);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo {
  height: 38px;
  width: auto;
  border-radius: 4px;
  display: block;
}

.navbar-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-orange);
  transition: width var(--transition-fast);
  border-radius: 1px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-orange);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ============================================
   Banner 区域（图片版）
   ============================================ */
.banner {
  padding-top: 64px; /* navbar height */
  background: #F5F7FA;
  position: relative;
  overflow: hidden;
}

.banner-image-wrapper {
  width: 100%;
  display: block;
}

.banner-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ============================================
   通用 Section 样式
   ============================================ */
.section {
  padding: var(--spacing-section) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-title {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
}

.section-subtitle {
  font-size: var(--font-size-md);
  font-weight: 600;
  letter-spacing: 3px;
}

/* ============================================
   产品及服务
   ============================================ */
.products-section {
  background: var(--color-bg-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.product-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.product-card:hover .card-icon {
  transform: scale(1.05);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.icon-blue { background: var(--color-blue-light); color: var(--icon-blue); }
.icon-orange { background: var(--color-orange-light); color: var(--icon-orange); }
.icon-green { background: var(--color-green-light); color: var(--icon-green); }
.icon-purple { background: #F9F0FF; color: var(--icon-purple); }

.card-content {
  flex: 1;
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.card-list {
  list-style: none;
}

.card-list li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  padding-left: 4px;
}

/* ============================================
   核心应用场景
   ============================================ */
.scenarios-section {
  background: var(--color-bg-gray);
}

.scenarios-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.scenarios-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.scenario-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.scenario-item:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.scenario-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scenario-icon svg {
  width: 24px;
  height: 24px;
}

.icon-scenario-1 { background: linear-gradient(135deg, #FFF7E6, #FFE7BA); color: var(--color-orange); }
.icon-scenario-2 { background: linear-gradient(135deg, #E6F7FF, #BAE7FF); color: var(--color-blue); }
.icon-scenario-3 { background: linear-gradient(135deg, #F6FFED, #D9F7BE); color: var(--color-green); }
.icon-scenario-4 { background: linear-gradient(135deg, #F9F0FF, #EFDBFF); color: var(--icon-purple); }
.icon-scenario-5 { background: linear-gradient(135deg, #FFF0F6, #FFADD2); color: #EB2F96; }

.scenario-info h4 {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.scenario-info p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* 等距科技插图 */
.scenarios-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.isometric-scene {
  position: relative;
  width: 380px;
  height: 320px;
}

.iso-floor {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) perspective(500px) rotateX(60deg);
  width: 320px;
  height: 240px;
  background:
    linear-gradient(90deg, rgba(24, 144, 255, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(24, 144, 255, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  border-radius: var(--radius-md);
}

.iso-block {
  position: absolute;
  width: 70px;
  height: 70px;
  transform-style: preserve-3d;
  transform: rotateX(-20deg) rotateY(-30deg);
}

.block-face {
  position: absolute;
  backface-visibility: hidden;
}

.iso-block-1 {
  bottom: 60px;
  left: 40px;
}

.iso-block-1 .block-front {
  width: 70px;
  height: 45px;
  background: linear-gradient(180deg, #4A90D9, #2563B8);
  transform: translateZ(35px);
  border-radius: 2px 2px 0 0;
}

.iso-block-1 .block-top {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #69B1FF, #40A9FF);
  transform: rotateX(90deg) translateZ(35px);
  border-radius: 2px;
}

.iso-block-1 .block-right {
  width: 70px;
  height: 45px;
  background: linear-gradient(90deg, #2563B8, #1A5AB8);
  transform: rotateY(90deg) translateZ(35px);
}

.iso-block-2 {
  bottom: 60px;
  left: 140px;
  z-index: 2;
}

.iso-block-2 .block-front {
  width: 70px;
  height: 65px;
  background: linear-gradient(180deg, #52C41A, #389E0D);
  transform: translateZ(35px);
  border-radius: 2px 2px 0 0;
}

.iso-block-2 .block-top {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #73D13D, #52C41A);
  transform: rotateX(90deg) translateZ(35px);
  border-radius: 2px;
}

.iso-block-2 .block-right {
  width: 70px;
  height: 65px;
  background: linear-gradient(90deg, #389E0D, #237804);
  transform: rotateY(90deg) translateZ(35px);
}

.iso-block-3 {
  bottom: 60px;
  left: 240px;
}

.iso-block-3 .block-front {
  width: 70px;
  height: 35px;
  background: linear-gradient(180deg, #722ED1, #531DAB);
  transform: translateZ(35px);
  border-radius: 2px 2px 0 0;
}

.iso-block-3 .block-top {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #9254DE, #722ED1);
  transform: rotateX(90deg) translateZ(35px);
  border-radius: 2px;
}

.iso-block-3 .block-right {
  width: 70px;
  height: 35px;
  background: linear-gradient(90deg, #531DAB, #39108A);
  transform: rotateY(90deg) translateZ(35px);
}

.iso-screen {
  position: absolute;
  bottom: 125px;
  left: 155px;
  width: 80px;
  height: 58px;
  background: linear-gradient(180deg, #E8F4FF, #D0E8FF);
  border: 2px solid #91D5FF;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(24, 144, 255, 0.15);
}

.screen-content {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(180deg, rgba(24, 144, 255, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 144, 255, 0.15) 1px, transparent 1px);
  background-size: 10px 10px;
}

.iso-person {
  position: absolute;
  bottom: 60px;
  left: 100px;
  width: 20px;
  height: 36px;
  background: linear-gradient(180deg, #597EF7, #2F54EB);
  border-radius: 10px 10px 4px 4px;
}

.iso-person::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  background: #597EF7;
  border-radius: 50%;
}

/* ============================================
   购买流程详解
   ============================================ */
.process-section {
  background: var(--color-bg-white);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.process-step {
  text-align: center;
  flex: 0 0 auto;
  max-width: 140px;
}

.step-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.process-step:hover .step-icon {
  transform: scale(1.08);
}

.step-icon svg {
  width: 34px;
  height: 34px;
}

.step-icon-1 { background: #E6F7FF; color: var(--color-blue); }
.step-icon-2 { background: #FFF7E6; color: var(--color-orange); }
.step-icon-3 { background: #F6FFED; color: var(--color-green); }
.step-icon-4 { background: #F9F0FF; color: var(--icon-purple); }

.step-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.step-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.process-arrow {
  flex-shrink: 0;
  width: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 30px;
}

.process-arrow svg {
  width: 50px;
  height: 18px;
}

/* ============================================
   为什么选择我们
   ============================================ */
.why-section {
  background: var(--color-bg-gray);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.why-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

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

.why-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-icon svg {
  width: 32px;
  height: 32px;
}

.why-icon-1 { background: linear-gradient(135deg, #E6F7FF, #BAE7FF); color: var(--color-blue); }
.why-icon-2 { background: linear-gradient(135deg, #FFF7E6, #FFE7BA); color: var(--color-orange); }
.why-icon-3 { background: linear-gradient(135deg, #F6FFED, #D9F7BE); color: var(--color-green); }
.why-icon-4 { background: linear-gradient(135deg, #F9F0FF, #EFDBFF); color: var(--icon-purple); }

.why-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.why-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   CTA 横幅
   ============================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-orange), var(--color-orange-dark));
  padding: var(--spacing-xxl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  border-radius: 50%;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.07) 0%, transparent 60%);
  border-radius: 50%;
}

.cta-title {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}

.cta-subtitle {
  font-size: var(--font-size-md);
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  z-index: 1;
  letter-spacing: 2px;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.8);
  padding-top: 0;
}

.footer-contact-img {
  width: 100%;
  height: auto;
  display: block;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.logo-hatter {
  font-size: 26px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 4px;
  line-height: 1;
}

.logo-cn {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
}

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

.contact-item {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xs);
}

.contact-label {
  color: rgba(255, 255, 255, 0.5);
}

.footer-qrcodes {
  display: flex;
  gap: var(--spacing-lg);
}

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

.qr-placeholder {
  width: 88px;
  height: 88px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xs);
}

.qr-placeholder svg {
  width: 64px;
  height: 64px;
}

.qr-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  text-align: center;
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-xs);
  color: #FFFFFF;
  background: linear-gradient(90deg, #011538 7%, #023780 90%);
}

/* ============================================
   通用智能体 - 列表卡片
   （沿用 test.html 列表风格：渐变描边卡片 / 标签 / 大号数字 / 勾选列表 / 按钮，
     配色统一为站点橙(#FF6B00)·蓝(#1890FF)主题）
   ============================================ */
.agent-section {
  padding: max(var(--spacing-section), 84px) 0;
  background: var(--color-bg-gray);
}

.agent-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--spacing-xxl);
}

.agent-header h2 {
  font-size: var(--font-size-title);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.agent-header p {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
}

.agent-grid {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

/* 渐变描边卡片（mask 技法，与 test.html .card-gradient-border 一致） */
.agent-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  will-change: transform;
}

.agent-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1.5px;
  background: linear-gradient(135deg, var(--color-orange), var(--color-blue));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.agent-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 34px rgba(24, 38, 76, 0.14),
              0 8px 18px rgba(255, 107, 0, 0.16);
}

/* hover 时叠加一层更亮的渐变描边，制造"点亮"效果 */
.agent-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1.5px;
  background: linear-gradient(135deg, #FF8A33, #40A9FF);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.agent-card:hover::after {
  opacity: 1;
}

.agent-card:hover .agent-card-title {
  color: var(--color-orange);
}

.agent-card:hover .feature-icon {
  color: var(--color-orange);
}

.agent-card:hover .agent-card-btn {
  background: var(--color-blue);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(24, 144, 255, 0.3);
}

.agent-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  transition: color var(--transition-fast);
}

.agent-card-tag {
  align-self: flex-start;
  display: inline-block;
  background: var(--color-blue-light);
  color: var(--color-blue);
  font-size: var(--font-size-sm);
  padding: 4px 12px;
  border-radius: 6px;
  margin-bottom: var(--spacing-lg);
}

.agent-card-metric {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: var(--spacing-xs) 0 var(--spacing-md);
}

.agent-card-metric .metric-num {
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
}

.agent-card-metric .metric-unit {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.agent-card-divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
}

.agent-card-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.agent-card-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--font-size-base);
  line-height: 1.45;
  color: var(--color-text-secondary);
}

.feature-icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--color-blue);
  transition: color var(--transition-fast);
}

.agent-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.agent-card-btn.btn-primary {
  background: linear-gradient(135deg, rgb(147 197 253 / .55) 0%, rgb(191 219 254 / .45) 55%, rgb(254 205 210 / .5) 100%);
  color: #000;
}

.agent-card-btn.btn-primary:hover {
  background: var(--color-blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(24, 144, 255, 0.3);
}

.agent-card-btn.btn-secondary {
  background: var(--color-bg-gray);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.agent-card-btn.btn-secondary:hover {
  background: var(--color-border-light);
}

/* ============================================
   联系方式弹层（点击「立即购买」弹出）
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: 1000;
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: 32px 28px 28px;
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  transform: translateY(12px) scale(0.98);
  transition: transform var(--transition-fast);
}

.modal-overlay.is-open .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 26px;
  line-height: 1;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg-gray);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.modal-contact {
  margin-bottom: var(--spacing-lg);
}

.modal-contact .contact-item {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.modal-contact .contact-label {
  color: var(--color-text-primary);
  font-weight: 600;
}

.modal-contact a {
  color: var(--color-blue);
  text-decoration: none;
}

.modal-qrcodes {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
}

.qr-figure {
  flex: 1;
  max-width: 160px;
  margin: 0;
}

.qr-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.qr-figure figcaption {
  margin-top: 8px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   建设中页面（占位页）
   ============================================ */
.construction-section {
  min-height: calc(100vh - 64px);
  padding-top: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #FFFFFF 0%, #F5F7FA 50%, #EBF0FA 100%);
  position: relative;
  overflow: hidden;
}

.construction-section::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.construction-section::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(24, 144, 255, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.construction-inner {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: var(--spacing-xxl);
}

.construction-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto var(--spacing-lg);
  border-radius: 50%;
  background: var(--color-orange-light);
  color: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: gear-spin 8s linear infinite;
}

.construction-icon svg {
  width: 48px;
  height: 48px;
}

@keyframes gear-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.construction-title {
  font-size: var(--font-size-title);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: 4px;
}

.construction-desc {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.construction-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-orange), var(--color-orange-dark));
  color: #FFFFFF;
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 24px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(255, 107, 0, 0.25);
}

.construction-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 107, 0, 0.35);
}

.construction-badge {
  display: inline-block;
  background: var(--color-blue-light);
  color: var(--color-blue);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 16px;
  margin-bottom: var(--spacing-md);
  letter-spacing: 1px;
}

/* ============================================
   动画效果
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger children */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.4s; }

/* ============================================
   响应式设计
   ============================================ */

/* 平板 */
@media (max-width: 1024px) {
  :root {
    --font-size-banner: 32px;
    --font-size-xxl: 22px;
    --font-size-title: 28px;
    --spacing-section: 60px;
  }

  .banner-img {
    max-height: 360px;
    object-fit: cover;
  }

  .scenarios-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .scenarios-visual {
    order: -1;
  }

  .isometric-scene {
    width: 300px;
    height: 260px;
    margin: 0 auto;
  }

  .process-steps {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .process-arrow {
    display: none;
  }

  .process-step {
    flex: 0 0 calc(50% - 12px);
    max-width: none;
  }

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

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

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

/* 手机 */
@media (max-width: 768px) {
  :root {
    --font-size-banner: 26px;
    --font-size-xxl: 20px;
    --font-size-title: 24px;
    --spacing-section: 48px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-xxl: 36px;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .navbar-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
  }

  .navbar-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-lg);
    border-bottom: 1px solid var(--color-border-light);
  }

  .banner-img {
    max-height: 280px;
    object-fit: cover;
    object-position: center;
  }

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

  .product-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
  }

  .scenario-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .process-step {
    flex: 0 0 calc(50% - 8px);
  }

  .step-icon {
    width: 60px;
    height: 60px;
  }

  .step-icon svg {
    width: 28px;
    height: 28px;
  }

  .why-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--spacing-xl);
    text-align: center;
  }

  .footer-qrcodes {
    justify-content: center;
  }

  .cta-title {
    font-size: var(--font-size-xl);
  }

  .section-title {
    font-size: var(--font-size-xl);
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  :root {
    --font-size-banner: 22px;
    --font-size-xxl: 18px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .process-step {
    flex: 0 0 100%;
  }

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

  .footer-qrcodes {
    gap: var(--spacing-md);
  }
}

/* ============================================
   Token 超市
   ============================================ */
.token-market-page {
  background: var(--color-bg-gray);
  min-height: calc(100vh - 64px);
}

.token-market-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--spacing-xxl);
  padding: max(var(--spacing-section), 84px) 0 0;
}

.token-market-title {
  font-size: var(--font-size-title);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 1px;
}

.token-market-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

.token-market-content {
  padding: 0 0 80px;
}

/* 分类 Tab */
.token-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.token-tab {
  padding: 10px 24px;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.token-tab:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.token-tab.active {
  background: var(--color-blue);
  color: #fff;
  border-color: var(--color-blue);
  box-shadow: 0 4px 12px rgba(24, 144, 255, 0.25);
}

/* 搜索框 */
.token-search {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto var(--spacing-xl);
  padding: 0 20px;
  height: 52px;
  background: #f3f8ff;
  border: 2px solid var(--color-blue);
  border-radius: 26px;
  box-shadow: 0 6px 18px rgba(24, 144, 255, 0.18);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.token-search:focus-within {
  border-color: var(--color-blue-dark);
  box-shadow: 0 8px 22px rgba(24, 144, 255, 0.28);
}

.token-search-icon {
  flex-shrink: 0;
  color: var(--color-blue);
}

.token-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
}

.token-search-input::placeholder {
  color: var(--color-text-light);
  opacity: 1;
}

.token-search-clear {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: rgba(24, 144, 255, 0.15);
  color: var(--color-blue-dark);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.token-search-clear:hover {
  background: rgba(24, 144, 255, 0.28);
}

/* 空状态 */
.token-empty {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-md);
  padding: var(--spacing-xl) 0;
}

/* 卡片网格（与通用智能体 .agent-grid 一致：3 列） */
.token-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

/* 模型卡片（与通用智能体 .agent-card 视觉一致：渐变描边 + 双层辉光 hover） */
.token-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  will-change: transform;
  overflow: hidden;
}

/* 渐变描边（mask 技法，与 .agent-card::before 一致） */
.token-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1.5px;
  background: linear-gradient(135deg, var(--color-orange), var(--color-blue));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.token-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 34px rgba(24, 38, 76, 0.14),
              0 8px 18px rgba(255, 107, 0, 0.16);
}

/* hover 时叠加更亮渐变描边，制造"点亮"效果（与 .agent-card::after 一致） */
.token-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1.5px;
  background: linear-gradient(135deg, #FF8A33, #40A9FF);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.token-card:hover::after {
  opacity: 1;
}

.token-card:hover .token-card-title {
  color: var(--color-orange);
}

.token-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.token-card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.35;
  min-width: 0;
  /* 允许换行，完整显示模型名称（不再省略截断） */
  white-space: normal;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.token-card-product {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.token-card-region {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.token-card-region .region-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-blue);
  flex-shrink: 0;
}

/* 计费项清单（同一模型 + 区域下，按计费项列出单价与专享折扣） */
.token-card-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.token-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: 8px 12px;
  background: var(--color-bg-gray);
  border-radius: var(--radius-md);
}

.token-item-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.token-item-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.token-item-unit {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.token-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.token-item-official {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.token-item-price {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-orange);
  display: flex;
  align-items: center;
  gap: 6px;
}

.token-item-discount {
  font-size: var(--font-size-xs);
  font-weight: 600;
  font-style: normal;
  color: var(--color-blue);
  background: var(--color-blue-light);
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

/* 按钮 */
.token-card-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.token-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 0;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
  text-decoration: none;
}

.token-btn-outline {
  background: var(--color-bg-gray);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.token-btn-outline:hover {
  background: var(--color-border-light);
}

.token-btn-primary {
  background: linear-gradient(135deg, rgb(147 197 253 / .55) 0%, rgb(191 219 254 / .45) 55%, rgb(254 205 210 / .5) 100%);
  color: #000;
  box-shadow: none;
}

.token-btn-primary:hover {
  background: var(--color-blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(24, 144, 255, 0.3);
}

/* 卡片 hover 时，立即购买按钮点亮为蓝底白字（与 .agent-card 一致） */
.token-card:hover .token-btn-primary {
  background: var(--color-blue);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(24, 144, 255, 0.3);
}

/* Token 超市响应式（断点与通用智能体 .agent-grid 一致） */
@media (max-width: 1024px) {
  .token-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-brand {
    margin-right: var(--spacing-md);
  }

  .navbar-brand-name {
    display: none;
  }

  .token-tabs {
    gap: 8px;
  }

  .token-tab {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
  }

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