/* ========================================
   金蝶AI咨询 — 企业级官网样式
   ======================================== */

:root {
  --brand-primary: #0066CC;
  --brand-primary-dark: #004C99;
  --accent-cyan: #00D4FF;
  --accent-glow: rgba(0, 212, 255, 0.35);
  --bg-primary: #0B1120;
  --bg-secondary: #111827;
  --bg-elevated: #151f33;
  --bg-dark: #070b14;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 212, 255, 0.28);
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-on-dark: #ffffff;
  --text-on-dark-muted: rgba(255, 255, 255, 0.72);
  --accent-purple: #004C99;
  --accent-blue: #0066CC;
  --gradient-primary: linear-gradient(135deg, #0066CC, #004C99);
  --gradient-accent: linear-gradient(135deg, #00D4FF, #0066CC);
  --gradient-glow: linear-gradient(135deg, rgba(0, 212, 255, 0.14), rgba(0, 102, 204, 0.08));
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 28px rgba(0, 212, 255, 0.1);
  --shadow-glow: 0 0 32px rgba(0, 212, 255, 0.22);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 72px;
  --glass-blur: blur(16px);
}

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

input, textarea, select, [contenteditable] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

.hidden {
  display: none !important;
}

html.nav-auth-cached .nav-login-link {
  display: none !important;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "SF Pro Display", "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(0, 102, 204, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(0, 212, 255, 0.06), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.bg-grid,
.bg-gradient-orb,
#particlesCanvas {
  display: none !important;
}

/* --- 导航栏--- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 1.5rem;
  background: rgba(11, 17, 32, 0.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

body.page-home .navbar:not(.navbar--scrolled) {
  background: transparent;
  border-bottom-color: transparent;
  box-shadow: none;
}

.navbar.navbar--scrolled,
body.page-home .navbar.navbar--scrolled {
  background: rgba(11, 17, 32, 0.92);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: var(--nav-height);
  gap: 1.5rem;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  line-height: 1.15;
}

body.page-home .navbar:not(.navbar--scrolled) .logo {
  color: #fff;
}

.logo-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.logo-name-kd,
.logo-name-svc {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.navbar .logo .logo-mark,
.logo-brand .logo-mark {
  display: block;
  flex-shrink: 0;
  height: 38px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  object-position: left center;
}

.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
}

.footer-brand .logo-mark {
  height: 30px;
  width: auto;
  max-width: 100px;
  flex-shrink: 0;
  object-fit: contain;
}

.footer-brand .logo-name-kd,
.footer-brand .logo-name-svc {
  font-weight: 700;
  color: #fff;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-on-dark-muted);
}

.navbar-menu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  min-width: 0;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.15rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-links li {
  list-style: none;
  display: flex;
  align-items: center;
}

.nav-links a {
  display: block;
  padding: 0.45rem 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

body.page-home .navbar:not(.navbar--scrolled) .nav-links a {
  color: rgba(255, 255, 255, 0.82);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
}

body.page-home .navbar:not(.navbar--scrolled) .nav-links a:hover,
body.page-home .navbar:not(.navbar--scrolled) .nav-links a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-links a.nav-emphasis {
  color: var(--text-primary);
  font-weight: 600;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.18);
  margin-left: 0.25rem;
}

.nav-links a.nav-emphasis:hover,
.nav-links a.nav-emphasis.active {
  color: #fff;
  background: rgba(0, 212, 255, 0.14);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.12);
}

/* 产品演示下拉（已登录） */
.nav-demo-dropdown {
  position: relative;
}

.nav-demo-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.45rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
  white-space: nowrap;
}

body.page-home .navbar:not(.navbar--scrolled) .nav-demo-trigger {
  color: rgba(255, 255, 255, 0.82);
}

.nav-demo-trigger:hover,
.nav-demo-dropdown.open .nav-demo-trigger {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
}

body.page-home .navbar:not(.navbar--scrolled) .nav-demo-trigger:hover,
body.page-home .navbar:not(.navbar--scrolled) .nav-demo-dropdown.open .nav-demo-trigger {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-demo-chevron {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.2s;
}

.nav-demo-dropdown.open .nav-demo-chevron {
  transform: rotate(180deg);
}

.nav-demo-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 148px;
  padding: 0.35rem;
  background: rgba(15, 23, 42, 0.97);
  border: 1px solid rgba(0, 102, 204, 0.18);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  z-index: 1100;
  animation: nav-dropdown-in 0.18s ease;
}

.nav-demo-menu.open {
  display: block;
}

.nav-demo-menu-item {
  display: block;
  padding: 0.55rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-demo-menu-item:hover {
  color: #fff;
  background: rgba(0, 212, 255, 0.12);
  text-decoration: none;
}

/* 右侧操作区 */
.navbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0;
  margin-left: auto;
  flex-shrink: 0;
}

.nav-auth {
  display: flex;
  align-items: center;
  position: relative;
}

.nav-login-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

body.page-home .navbar:not(.navbar--scrolled) .nav-login-link {
  color: rgba(255, 255, 255, 0.82);
}

.nav-login-link:hover {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
}

body.page-home .navbar:not(.navbar--scrolled) .nav-login-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 1rem;
  border-radius: var(--radius-sm);
  background: var(--brand-primary);
  color: #fff !important;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background 0.2s;
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--brand-primary-dark);
}

.navbar-actions .nav-login-link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  line-height: 1;
}

/* 用户下拉菜单 */
.nav-user-dropdown {
  position: relative;
}

.nav-user-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  height: 36px;
  padding: 0 0.5rem 0 0.35rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.nav-user-trigger:hover,
.nav-user-dropdown.open .nav-user-trigger {
  background: rgba(255, 255, 255, 0.06);
}

body.page-home .navbar:not(.navbar--scrolled) .nav-user-trigger:hover,
body.page-home .navbar:not(.navbar--scrolled) .nav-user-dropdown.open .nav-user-trigger {
  background: rgba(255, 255, 255, 0.1);
}

.nav-user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 102, 204, 0.25);
}

.nav-user-avatar-lg {
  width: 40px;
  height: 40px;
  font-size: 0.95rem;
}

.nav-user-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  max-width: 88px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.page-home .navbar:not(.navbar--scrolled) .nav-user-name {
  color: rgba(255, 255, 255, 0.82);
}

.nav-user-chevron {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.2s, color 0.2s;
}

.nav-user-dropdown.open .nav-user-chevron {
  transform: rotate(180deg);
  color: var(--brand-primary);
}

.nav-user-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 232px;
  background: rgba(15, 23, 42, 0.97);
  border: 1px solid rgba(0, 102, 204, 0.18);
  border-radius: 14px;
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(0, 102, 204, 0.06);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  overflow: hidden;
  z-index: 1100;
  animation: nav-dropdown-in 0.18s ease;
}

.nav-user-menu.open {
  display: block;
}

@keyframes nav-dropdown-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.nav-user-menu-header {
  padding: 0.9rem 1rem 0.85rem;
  background: linear-gradient(180deg, rgba(0, 102, 204, 0.1), transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-user-menu-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.nav-user-menu-meta {
  min-width: 0;
  flex: 1;
}

.nav-user-menu-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-user-menu-email {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-user-role-badge {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.12rem 0.45rem;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--brand-primary);
  background: rgba(0, 102, 204, 0.12);
  border: 1px solid rgba(0, 102, 204, 0.22);
  border-radius: 999px;
}

.nav-user-menu-actions,
.nav-user-menu-footer {
  padding: 0.35rem;
}

.nav-user-menu-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 0.25rem;
}

.nav-user-menu-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.75;
}

.nav-user-menu-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.6rem 0.7rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  border: none;
  background: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s, background 0.15s;
  text-align: left;
}

.nav-user-menu-item span {
  flex: 1;
}

.nav-user-menu-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-user-menu-item:hover .nav-user-menu-icon {
  opacity: 1;
}

.nav-user-menu-logout {
  color: #ff8a7a;
}

.nav-user-menu-logout:hover {
  color: #ffb4a9;
  background: rgba(248, 81, 73, 0.1);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端导?*/
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .navbar-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(11, 17, 32, 0.98);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.75rem 1rem 1rem;
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }

  .navbar-menu.open {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    width: 100%;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 0.75rem;
  }

  .nav-links a {
    padding: 0.7rem 0.85rem;
    font-size: 0.95rem;
  }

  .nav-links a.nav-emphasis {
    margin-left: 0;
  }

  .navbar-actions {
    width: 100%;
    padding: 0.65rem 0 0;
    gap: 0.5rem;
    border-top: 1px solid var(--border-subtle);
  }

  .navbar-actions .nav-cta,
  .navbar-actions .nav-login-link,
  .nav-user-trigger {
    height: 40px;
  }

  .nav-auth {
    width: 100%;
  }

  .nav-user-menu {
    position: static;
    margin-top: 0.5rem;
    box-shadow: none;
    animation: none;
  }

  .nav-login-link {
    display: block;
    text-align: center;
    padding: 0.7rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
  }
}

/* --- 容器 --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Hero 区域 --- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 3rem) 2rem 5rem;
  overflow: hidden;
}

.hero--cinematic {
  color: var(--text-on-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(7, 11, 20, 0.95) 0%, rgba(11, 17, 32, 0.88) 45%, rgba(0, 76, 153, 0.35) 100%),
    radial-gradient(ellipse at 30% 20%, rgba(0, 212, 255, 0.12), transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0, 102, 204, 0.15), transparent 45%),
    linear-gradient(160deg, #070b14 0%, #0B1120 50%, #111827 100%);
  z-index: -2;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.5;
}

.hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.hero-content {
  max-width: 820px;
  position: relative;
  z-index: 1;
  transform: translateY(-12px);
}

.hero-badge {
  display: inline-block;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 1.75rem;
  letter-spacing: 0.06em;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
  color: #fff;
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.45), 0 0 1px rgba(0, 0, 0, 0.3);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #ffffff, #a8d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-on-dark-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  animation: hero-bounce 2s ease infinite;
}

.hero-scroll-hint svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

@keyframes hero-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 28px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0077EE, #0066CC);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline--dark {
  color: var(--text-primary);
  border-color: var(--border-subtle);
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
}

.btn-outline--dark:hover {
  border-color: var(--border-glow);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  border-color: var(--border-glow);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

/* --- 区块通用 --- */
.section {
  position: relative;
  z-index: 1;
  padding: 5.5rem 2rem;
}

.section--alt {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section--dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}

.section--dark .section-title,
.section--dark h2,
.section--dark h3 {
  color: #fff;
}

.section--dark .section-subtitle,
.section--dark p {
  color: var(--text-on-dark-muted);
}

.section--dark .section-label {
  color: rgba(255, 255, 255, 0.6);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* --- 亮点卡片 --- */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.highlight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.highlight-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  background: var(--bg-card-hover);
}

.highlight-card .card-icon,
.highlight-card .icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent-cyan);
}

.highlight-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.highlight-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* --- 统计数字 --- */
.stats-section {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats-section .stat-item .stat-number {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats-section .stat-item .stat-label {
  color: rgba(255, 255, 255, 0.65);
}

/* --- 关于我们：能力矩阵（一体化三层结构） --- */
.capability-matrix-section .section-subtitle {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.capability-stack {
  margin-top: 2.5rem;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid rgba(0, 212, 255, 0.18);
  border-radius: calc(var(--radius-lg) + 4px);
  background:
    linear-gradient(180deg, rgba(0, 212, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 18%, rgba(255, 255, 255, 0.02) 82%, rgba(0, 212, 255, 0.05) 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  overflow: hidden;
  position: relative;
}

.capability-stack::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 212, 255, 0.08), transparent 60%);
  pointer-events: none;
}

.capability-stack__band,
.capability-stack__core {
  position: relative;
  z-index: 1;
}

.capability-stack__band {
  padding: 1.15rem 1.75rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.capability-stack__band--bottom {
  border-bottom: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* 左标签 + 右内容 横条（上 / 中 / 底统一） */
.capability-stack__row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.capability-stack__row-label {
  flex: 0 0 auto;
  min-width: 148px;
  display: flex;
  flex-direction: row;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  text-align: left;
  white-space: nowrap;
}

.capability-stack__tier-num::after {
  content: "·";
  margin-left: 0.5rem;
  color: rgba(255, 255, 255, 0.28);
  font-weight: 400;
}

.capability-stack__row-divider {
  flex: 0 0 1px;
  align-self: stretch;
  min-height: 2.5rem;
  background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.28), transparent);
}

.capability-stack__row-content {
  flex: 1;
  min-width: 0;
}

.capability-stack__tier-num {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(0, 212, 255, 0.85);
}

.capability-stack__tier-name {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.capability-stack__formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.55rem 0.75rem;
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.capability-stack__x {
  color: rgba(0, 212, 255, 0.55);
  font-weight: 400;
  font-size: 0.95rem;
}

.capability-stack__bridge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.35rem 1.5rem;
  background: rgba(0, 0, 0, 0.12);
}

.capability-stack__bridge-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.35), transparent);
}

.capability-stack__bridge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.55);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.45);
  flex-shrink: 0;
}

.capability-stack__core {
  padding: 1.5rem 1.75rem 1.65rem;
}

.capability-stack__core-head {
  margin-bottom: 1.35rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
}

.capability-stack__core-summary {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.capability-stack__fde-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.capability-stack__fde-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  letter-spacing: 0.02em;
}

.capability-cards {
  margin-top: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.capability-stack .capability-card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: none;
  padding: 1.65rem 1.5rem;
}

.capability-stack .capability-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 212, 255, 0.28);
}

.capability-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.capability-card-num {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.85;
}

.capability-card .card-icon {
  margin-bottom: 0;
  width: 38px;
  height: 38px;
}

.capability-card h3 {
  display: block;
  margin-bottom: 0.75rem;
  line-height: 1.45;
  font-size: 1.05rem;
  text-align: left;
}

.capability-card-sub {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

.capability-card p {
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.75;
}

.capability-keyword {
  color: var(--accent-cyan);
  font-weight: 600;
}

@media (max-width: 960px) {
  .capability-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .capability-stack__band,
  .capability-stack__core {
    padding-left: 1.15rem;
    padding-right: 1.15rem;
  }

  .capability-stack__row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .capability-stack__row-label {
    flex: none;
    width: 100%;
    white-space: normal;
  }

  .capability-stack__row-divider {
    display: none;
  }

  .capability-stack__row-content {
    width: 100%;
  }

  .capability-stack__formula {
    font-size: 0.98rem;
  }

  .capability-stack__core-summary {
    font-size: 0.92rem;
  }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item .stat-number {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item .stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* --- 页面横幅 --- */
.page-banner {
  position: relative;
  z-index: 1;
  padding: calc(var(--nav-height) + 3rem) 2rem 4rem;
  text-align: center;
  background: transparent;
  color: var(--text-primary);
}

.page-banner .section-label {
  color: var(--accent-cyan);
}

.page-banner h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.page-banner p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --- 关于?--- */
.about-story {
  position: relative;
  z-index: 1;
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.about-story p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.team-section {
  scroll-margin-top: 80px;
}

.team-unlocked-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0 auto 1.5rem;
  max-width: 520px;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-size: 0.875rem;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.22);
}

.team-unlocked-banner::before {
  content: "?;
  font-weight: 700;
}

.team-grid {
  display: grid;
  gap: 1.15rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (min-width: 1200px) {
  .team-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1rem;
  text-align: center;
  transition: var(--transition);
  height: 100%;
  box-shadow: var(--shadow-card);
}

.team-card--teaser .bio {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.team-card--full {
  padding: 1.5rem 1.15rem;
}

.team-section--full .team-card--full:hover {
  border-color: rgba(0, 102, 204, 0.3);
}

.team-card .role {
  font-size: 0.8rem;
  color: var(--brand-primary);
  margin-bottom: 0.65rem;
  line-height: 1.45;
}
  background: var(--brand-primary);
  box-shadow: 0 0 12px rgba(0, 102, 204, 0.3);
}

.timeline-item .year {
  color: var(--brand-primary);
}

.team-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.team-card .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 0.85rem;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  font-weight: 700;
  color: #fff;
}

.team-grid--full .team-card .avatar {
  width: 72px;
  height: 72px;
  font-size: 1.65rem;
  margin-bottom: 1rem;
}

.team-card h3 {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
  line-height: 1.35;
}


.timeline-item::before {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

.team-grid--full .team-card .bio {
  font-size: 0.86rem;
  line-height: 1.65;
  text-align: left;
}

.team-full-entry {
  text-align: center;
  margin-top: 2rem;
  padding-top: 0.5rem;
}

.team-full-entry-hint {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- 时间?/ 发展历程 --- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-subtle);
}

.timeline-item {
  position: relative;
  padding: 0 0 2rem 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.35rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

.timeline-item .year {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.timeline-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- 服务?--- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

/* 服务板块标题 */
.service-block-header {
  text-align: center;
  margin-bottom: 2rem;
}

.service-block-header .service-block-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.service-block-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
}

.service-block-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  background: var(--bg-card-hover);
}

.service-card .icon-lg,
.service-card .icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-cyan);
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-card ul {
  list-style: none;
  flex: 1;
}

.service-card ul li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.service-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-primary);
}

.service-card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-top: auto;
  padding-top: 1.25rem;
}

.service-solution-link,
.service-case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-primary);
  text-decoration: none;
  transition: opacity 0.2s;
}

.service-card-actions .service-solution-link,
.service-card-actions .service-case-link {
  margin-top: 0;
}

.service-case-link:not(.service-card-actions *) {
  margin-top: 1.25rem;
}

.service-solution-link:hover,
.service-case-link:hover {
  opacity: 0.85;
}

/* --- AI 咨询产品 PPT 布局（深色站点融合）--- */
.section--ai-ppt {
  padding: 3rem 0 3.5rem;
  background:
    radial-gradient(ellipse 90% 70% at 50% 40%, rgba(0, 102, 204, 0.1), transparent 65%),
    linear-gradient(180deg, transparent 0%, rgba(0, 102, 204, 0.04) 50%, transparent 100%);
}

.container--wide {
  max-width: 1320px;
}

.ai-ppt-slide {
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(0, 102, 204, 0.22);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem 1.35rem;
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.ai-ppt-slide-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #5eb8ff;
  margin-bottom: 0.85rem;
  letter-spacing: 0.02em;
}

.ai-ppt-slide-lead {
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 820px;
  margin: 0 auto 1.5rem;
}

.ai-products-ppt {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 32px minmax(440px, 2.4fr) 32px minmax(240px, 1fr);
  align-items: center;
  min-width: 1020px;
}

.ai-ppt-module {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.ai-ppt-module--core,
.ai-ppt-module--subscription {
  align-self: center;
  height: auto;
  display: flex;
  flex-direction: column;
}

.ai-ppt-plus {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  font-size: 2rem;
  font-weight: 800;
  color: rgba(0, 212, 255, 0.75);
  line-height: 1;
  user-select: none;
}

/* 中间增强模块：外框 + 内间距 */
.ai-ppt-module--enhanced {
  background: rgba(0, 102, 204, 0.05);
  border: 1px solid rgba(0, 102, 204, 0.22);
  border-radius: 10px 10px 0 0;
  padding: 1rem 1rem 0;
}

.ai-ppt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  align-items: stretch;
  gap: 0.85rem;
  border: none;
  border-radius: 0;
  overflow: visible;
  background: transparent;
}

.ai-ppt-grid .ai-ppt-card {
  height: 100%;
  padding: 1.25rem 1.15rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 102, 204, 0.2);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
  transition: border-color var(--transition), background var(--transition);
}

.ai-ppt-grid .ai-ppt-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 212, 255, 0.28);
}

.ai-ppt-grid .ai-ppt-card:nth-child(2n),
.ai-ppt-grid .ai-ppt-card:nth-child(n+3) {
  border-right: 1px solid rgba(0, 102, 204, 0.2);
  border-bottom: 1px solid rgba(0, 102, 204, 0.2);
}

.ai-ppt-card {
  display: flex;
  flex-direction: column;
}

.ai-ppt-card--solo {
  flex: 1;
  display: flex;
  flex-direction: column;
  border-radius: 10px 10px 0 0;
  border: 1px solid rgba(0, 102, 204, 0.28);
  border-bottom: none;
  padding: 1.5rem 1.25rem;
}

.ai-ppt-module--core .ai-ppt-card--solo {
  background: linear-gradient(165deg, rgba(0, 102, 204, 0.18) 0%, rgba(0, 76, 153, 0.12) 100%);
  border-color: rgba(0, 102, 204, 0.32);
}

.ai-ppt-module--subscription .ai-ppt-card--solo {
  background: linear-gradient(165deg, rgba(107, 82, 180, 0.2) 0%, rgba(91, 68, 160, 0.12) 100%);
  border-color: rgba(107, 82, 180, 0.35);
}

/* 中间 4 块：略小一档 */
.ai-ppt-grid .ai-ppt-card h4 {
  font-size: 1.08rem;
  font-weight: 600;
  padding-bottom: 0.5rem;
  margin-bottom: 0.65rem;
  border-bottom: 1px solid rgba(0, 102, 204, 0.15);
}

.ai-ppt-grid .ai-ppt-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 0.85rem;
}

.ai-ppt-grid .ai-ppt-card ul {
  flex: 1;
}

.ai-ppt-grid .ai-ppt-card ul li {
  font-size: 0.85rem;
  padding: 0.32rem 0 0.32rem 1.2rem;
  line-height: 1.65;
  position: relative;
}

.ai-ppt-grid .ai-ppt-card ul li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0.2rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-primary);
}

/* 左右 1+1：与 .service-card 完全对齐 */
.ai-ppt-module--core .ai-ppt-card--solo h4,
.ai-ppt-module--subscription .ai-ppt-card--solo h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.ai-ppt-module--core .ai-ppt-card--solo p,
.ai-ppt-module--subscription .ai-ppt-card--solo p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.ai-ppt-module--core .ai-ppt-card--solo ul,
.ai-ppt-module--subscription .ai-ppt-card--solo ul {
  flex: 1;
}

.ai-ppt-module--core .ai-ppt-card--solo ul li,
.ai-ppt-module--subscription .ai-ppt-card--solo ul li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 0.35rem 0 0.35rem 1.25rem;
  line-height: 1.6;
}

.ai-ppt-module--core .ai-ppt-card--solo ul li::before,
.ai-ppt-module--subscription .ai-ppt-card--solo ul li::before {
  top: 0.65rem;
  left: 0;
  width: 6px;
  height: 6px;
}

.ai-ppt-module--core .ai-ppt-card--solo .ai-ppt-card-links,
.ai-ppt-module--subscription .ai-ppt-card--solo .ai-ppt-card-links {
  margin-top: auto;
  padding-top: 1rem;
}

.ai-ppt-module--core .ai-ppt-card--solo .ai-ppt-card-links a,
.ai-ppt-module--subscription .ai-ppt-card--solo .ai-ppt-card-links a {
  font-size: 0.88rem;
  font-weight: 600;
}

.ai-ppt-card h4 {
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.ai-ppt-card p {
  color: var(--text-secondary);
}

.ai-ppt-card ul {
  list-style: none;
  margin-bottom: 0.5rem;
}

.ai-ppt-card ul li {
  color: var(--text-secondary);
  position: relative;
}

.ai-ppt-module--core .ai-ppt-card--solo ul li::before,
.ai-ppt-module--subscription .ai-ppt-card--solo ul li::before {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: var(--brand-primary);
}

.ai-ppt-module--subscription .ai-ppt-card ul li::before {
  background: #a78bfa;
}

.ai-ppt-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.45rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.ai-ppt-grid .ai-ppt-card-links {
  margin-top: auto;
  padding-top: 0.75rem;
  flex-shrink: 0;
}

.ai-ppt-card-links a {
  font-size: 0.88rem;
  font-weight: 600;
  color: #5eb8ff;
  text-decoration: none;
  white-space: nowrap;
}

.ai-ppt-card-links a:hover {
  color: var(--accent-cyan);
}

.ai-ppt-module--subscription .ai-ppt-card-links a {
  color: #c4b5fd;
}

.ai-ppt-module-label {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(180deg, #0077e6 0%, #0066CC 100%);
  padding: 0.5rem 0.5rem;
  border-radius: 0 0 10px 10px;
  letter-spacing: 0.03em;
  white-space: nowrap;
  margin-top: 0;
  flex-shrink: 0;
}

.ai-ppt-module--enhanced .ai-ppt-module-label {
  margin: 1rem -1rem 0;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(90deg, #286BE3 0%, #AC7BFF 100%);
}

.ai-ppt-module-label--purple {
  background: linear-gradient(180deg, #8b72d4 0%, #6b52b4 100%);
}

@media (max-width: 1024px) {
  .ai-ppt-slide {
    padding: 1.5rem 1rem 1rem;
  }

  .ai-ppt-slide-title {
    font-size: 1.35rem;
  }
}

@media (max-width: 768px) {
  .ai-ppt-slide-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }

  .ai-ppt-module--core .ai-ppt-card--solo h4,
  .ai-ppt-module--subscription .ai-ppt-card--solo h4 {
    font-size: 1.1rem;
  }

  .ai-ppt-grid .ai-ppt-card h4 {
    font-size: 1.05rem;
  }
}

/* --- 方案目录页 --- */
.solutions-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.solutions-sidebar {
  position: sticky;
  top: 96px;
}

.solutions-sidebar-inner {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.solutions-sidebar h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 1rem 0 0.5rem;
}

.solutions-sidebar h4:first-child {
  margin-top: 0;
}

.solutions-nav {
  list-style: none;
}

.solutions-nav li + li {
  margin-top: 0.15rem;
}

.solutions-nav a {
  display: block;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.solutions-nav a:hover {
  color: var(--text-primary);
  background: rgba(0, 212, 255, 0.06);
}

.solutions-nav a.is-active {
  color: var(--brand-primary);
  background: rgba(0, 212, 255, 0.1);
  font-weight: 600;
}

.solution-section {
  scroll-margin-top: 96px;
  padding-bottom: 3.5rem;
  margin-bottom: 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.solution-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.solution-section h2 {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.solution-section .solution-lead {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 720px;
}

.solution-placeholder {
  padding: 2rem;
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.92rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
}

.solution-back-link {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-primary);
  text-decoration: none;
  opacity: 0.9;
}

.solution-back-link:hover {
  opacity: 1;
}

.solution-body {
  max-width: 900px;
  margin: 0 auto;
}

.solution-body h2,
.solution-body h3,
.solution-body h4 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.solution-body h2:first-child,
.solution-body h3:first-child {
  margin-top: 0;
}

.solution-body p,
.solution-body li {
  color: var(--text-secondary);
  line-height: 1.8;
}

.solution-body ul,
.solution-body ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

.solution-index-intro {
  margin-bottom: 2.5rem;
}

.solution-index-intro h2 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.solution-index-intro p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.solution-index-intro code {
  font-size: 0.88em;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(0, 212, 255, 0.08);
  color: var(--brand-primary);
}

.solution-index-group + .solution-index-group {
  margin-top: 2.5rem;
}

.solution-index-group h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: var(--brand-primary);
}

.solution-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.solution-index-card {
  display: block;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  text-decoration: none;
  transition: var(--transition);
}

.solution-index-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.solution-index-card h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.solution-index-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.solution-index-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-primary);
}

@media (max-width: 900px) {
  .solutions-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .solutions-sidebar {
    position: static;
  }
}

/* --- 案例?--- */
.cases-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.cases-filter-btn {
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
  backdrop-filter: var(--glass-blur);
}

.cases-filter-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--border-glow);
}

.cases-filter-btn.active {
  color: #fff;
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.15);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
}

.cases-loading,
.cases-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 1rem;
  font-size: 0.95rem;
}

.case-detail-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  color: var(--brand-primary);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.case-detail-link:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 102, 204, 0.25);
}

.case-detail-link svg {
  flex-shrink: 0;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-glow);
}

.case-card .case-image {
  height: 180px;
  background: var(--gradient-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-image--badge .case-image-letter {
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.9);
}

.case-card .case-body {
  padding: 1.75rem;
}

.case-card .case-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.case-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.case-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-card .case-metrics {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.case-metrics .metric-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--brand-primary);
}

.case-metrics .metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* --- 联系?--- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.contact-info h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-method:hover {
  background: var(--bg-card-hover);
}

.contact-method .method-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-primary);
  flex-shrink: 0;
}

.contact-method .method-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.contact-method .method-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* --- 表单 --- */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-consent {
  margin: 1.25rem 0 1.5rem;
}

.form-consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  cursor: pointer;
}

.form-consent-label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--brand-primary);
  cursor: pointer;
}

.form-consent-label a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.form-consent-label a:hover {
  text-decoration: underline;
}

.form-submit {
  width: 100%;
  padding: 0.85rem;
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: 28px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.5rem;
}

.form-submit:hover {
  background: var(--brand-primary-dark);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

/* --- CTA 区域 --- */
.cta-section {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 6rem 2rem;
}

.cta-section .cta-box {
  max-width: 760px;
  margin: 0 auto;
  padding: 4rem 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  color: var(--text-primary);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card-hover);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
}

.cta-box h2 {
  color: var(--text-primary);
}

.cta-box p {
  color: var(--text-secondary);
}

.cta-section--light .cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  color: var(--text-primary);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.cta-box h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

/* --- 页脚 --- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 2rem 2rem;
  background: var(--bg-dark);
  color: var(--text-secondary);
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0.4;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.footer-col h4 {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a,
.footer-col a:visited {
  color: var(--text-on-dark-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: var(--transition);
}

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

/* --- 法律文档 --- */
.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-content .legal-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 0.95rem;
}

.legal-content ul {
  margin: 0.5rem 0 1rem 1.25rem;
}

.legal-content li {
  margin-bottom: 0.4rem;
}

.legal-content a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.legal-content a:hover {
  text-decoration: underline;
}

.legal-content code {
  font-size: 0.88em;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* --- 动画 --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- 响应?--- */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .page-banner h1 {
    font-size: 2rem;
  }
  .hero {
    min-height: auto;
    padding-top: 6rem;
  }
  .section {
    padding: 4rem 1.5rem;
  }
}

/* --- 修改密码弹窗 --- */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.auth-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

body.auth-modal-open {
  overflow: hidden;
}

.auth-modal {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: rgba(22, 27, 34, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 2rem 1.75rem 1.75rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
}

.auth-modal h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.auth-modal-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.auth-modal-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
}

.auth-modal-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.auth-modal-msg {
  padding: 0.65rem 0.875rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.auth-modal-msg-error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid rgba(248, 81, 73, 0.3);
  color: #ff7b72;
}

.auth-modal-msg-success {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ade80;
}

.auth-modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.auth-modal-cancel,
.auth-modal-submit {
  flex: 1;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.auth-modal-cancel {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
}

.auth-modal-cancel:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.auth-modal-submit {
  border: none;
  background: #14b8a6;
  color: #fff;
}

.auth-modal-submit:hover:not(:disabled) {
  background: #0d9488;
}

.auth-modal-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* --- 新增：洞察轮播 / 业务支柱 / 案例故事 / 信任背书 --- */
.icon-svg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-svg svg {
  width: 100%;
  height: 100%;
}

.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.insights-carousel {
  position: relative;
  overflow: hidden;
}

.insights-track {
  display: flex;
  gap: 1.25rem;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.insight-card {
  flex: 0 0 calc(33.333% - 0.85rem);
  min-width: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.insight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.insight-card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  width: fit-content;
}

.insight-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.insight-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.25rem;
}

.insight-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-decoration: none;
}

.insight-card-link:hover {
  gap: 0.55rem;
}

.insights-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.insights-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.insights-btn:hover {
  border-color: var(--border-glow);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.12);
}

.insights-dots {
  display: flex;
  gap: 0.5rem;
}

.insights-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border-subtle);
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.insights-dot.active {
  background: var(--accent-cyan);
  width: 24px;
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.pillar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-glow);
}

.pillar-card .icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

.pillar-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.pillar-card > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
  min-height: 5.25em;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  min-height: 2rem;
  align-items: center;
}

.pillar-card .insight-card-link {
  margin-top: auto;
}

.pillar-tag {
  font-size: 0.72rem;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  line-height: 1.35;
  flex-shrink: 1;
  max-width: 100%;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.story-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.story-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-glow);
}

.story-card-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-card-visual .case-image-letter {
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.92);
}

.story-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.story-card-tag {
  display: inline-flex;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
  margin-bottom: 0.65rem;
  text-transform: none;
}

.story-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.45;
}

.story-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.story-card-metric {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.story-card-metric span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

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

.trust-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.trust-logo {
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.trust-logo:hover {
  color: var(--accent-cyan);
  border-color: var(--border-glow);
  background: rgba(0, 212, 255, 0.08);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
}

.trust-awards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.trust-award {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-align: left;
  box-shadow: var(--shadow-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.trust-award strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.trust-award span {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.source-tag {
  padding: 0.6rem 1.2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .insight-card {
    flex: 0 0 calc(50% - 0.65rem);
  }
  .pillar-grid,
  .story-grid,
  .trust-awards {
    grid-template-columns: 1fr;
  }

  .pillar-tags {
    flex-wrap: wrap;
  }

  .pillar-tag {
    flex-shrink: 1;
  }
}

@media (max-width: 768px) {
  .insight-card {
    flex: 0 0 100%;
  }
  .navbar-actions {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
}