/* ========================================
   岩准科技 AccuStone - 首页样式 v3
   精密制造采购入口视觉重设计
   ======================================== */

/* CSS 变量 */
:root {
  /* 核心色板 */
  --color-brand: #051A24;
  --color-brand-light: #0D212C;
  --color-primary-dark: #051A24;
  --color-secondary-dark: #0D212C;
  --color-muted: #273C46;
  --color-weak: #5E7580;
  --color-light-bg: #F5F7F8;
  --color-border: #E2E8EB;
  --color-white: #FFFFFF;

  /* 强调色 */
  --color-accent: #B45309;
  --color-accent-light: #FDF2E6;

  /* 工业色谱精简：仅保留青、琥珀 */
  --color-rock-teal: #0E5E5E;
  --color-rock-teal-light: #E6F2F2;
  --color-amber: #B45309;
  --color-amber-light: #FDF2E6;
  --color-steel-blue: #4A6C7D;
  --color-steel-blue-light: #EAF0F3;
  --color-graphite: #111827;
  --color-warm-bone: #FAFAF8;
  --color-charcoal: #162C35;
  --color-bg-warm: #FAFAF8;

  /* 文字色 */
  --color-text-light: #F6FCFF;
  --color-text-dim: #D1D5DB;

  /* 字体 */
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  --font-mono: "Roboto Mono", "JetBrains Mono", "SF Mono", "Consolas", monospace;

  /* 阴影 */
  --shadow-card: 0 4px 20px rgba(10, 37, 64, 0.06);
  --shadow-card-hover: 0 12px 32px rgba(10, 37, 64, 0.12);
  --shadow-button: 0 4px 14px rgba(10, 37, 64, 0.18);
  --shadow-button-hover: 0 8px 22px rgba(10, 37, 64, 0.24);
  --shadow-nav: 0 4px 30px rgba(10, 37, 64, 0.1);
  --shadow-mobile-cta: 0 -4px 20px rgba(10, 37, 64, 0.08);
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-pill: 9999px;

  /* 布局 */
  --container-max: 1200px;
  --section-py: var(--space-8);
  --header-height: 72px;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 80px;
  --space-10: 120px;

  /* 动画 */
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-primary-dark);
  background-color: var(--color-warm-bone);
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 48px;
    padding-right: 48px;
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: 64px;
    padding-right: 64px;
  }
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-brand);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-brand);
  background-color: rgba(10, 37, 64, 0.03);
  transform: translateY(-2px);
}

.btn-text {
  background-color: transparent;
  color: var(--color-brand);
  padding: 8px 0;
  font-weight: 500;
}

.btn-text:hover {
  color: var(--color-accent);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

/* Mono Voice 技术标签 */
.mono-voice {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* 准星装饰符号 */
.crosshair {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: inherit;
  flex-shrink: 0;
}

.crosshair::before,
.crosshair::after {
  content: "";
  position: absolute;
  background-color: currentColor;
}

.crosshair::before {
  width: 1px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}

.crosshair::after {
  height: 1px;
  width: 100%;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.crosshair-center {
  position: absolute;
  width: 6px;
  height: 6px;
  border: 1px solid currentColor;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.crosshair-sm {
  width: 16px;
  height: 16px;
}

.crosshair-sm .crosshair-center {
  width: 4px;
  height: 4px;
}

.crosshair-lg {
  width: 40px;
  height: 40px;
}

.crosshair-lg .crosshair-center {
  width: 10px;
  height: 10px;
}

/* Section eyebrow */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-rock-teal);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  background-color: var(--color-rock-teal);
}

.eyebrow .crosshair {
  width: 18px;
  height: 18px;
  color: var(--color-rock-teal);
}

.eyebrow-light {
  color: var(--color-text-dim);
}

.eyebrow-light::before {
  background-color: var(--color-text-dim);
}

.eyebrow-light .crosshair {
  color: var(--color-text-dim);
}

/* Display 字号 */
.display-xl {
  font-size: 40px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-brand);
}

.display {
  font-size: 36px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-brand);
}

.statement {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-brand);
}

@media (min-width: 768px) {
  .display-xl { font-size: 56px; }
  .display { font-size: 48px; }
  .statement { font-size: 36px; }
}

@media (min-width: 1024px) {
  .display-xl { font-size: 72px; }
  .display { font-size: 56px; }
  .statement { font-size: 40px; }
}

@media (min-width: 1280px) {
  .display-xl { font-size: 84px; }
}

/* 链接箭头 */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  color: var(--color-rock-teal);
  transition: var(--transition);
}

.link-arrow:hover {
  color: var(--color-brand);
}

.link-arrow:hover span {
  transform: translateX(4px);
}

.link-arrow span {
  display: inline-block;
  transition: var(--transition);
}

/* 顶部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(10, 37, 64, 0.08);
  box-shadow: var(--shadow-nav);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-mark {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-charcoal);
}

.logo-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

.logo-tagline {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 2px;
}

.logo-crosshair {
  color: var(--color-accent);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.logo-light .logo-mark,
.logo-light .logo-text,
.logo-light .logo-tagline {
  color: var(--color-text-light);
}

.logo-light .logo-crosshair {
  color: var(--color-accent);
}

@media (max-width: 1023px) {
  .logo-tagline {
    display: none;
  }
}

/* ===== 移动端左下角语言切换浮动按钮 ===== */
.mobile-lang-fab {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 999;
  display: none;
  flex-direction: column;
  gap: 8px;
}

@media (max-width: 1023px) {
  .mobile-lang-fab {
    display: flex;
  }
}

.mobile-lang-fab-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-brand);
  cursor: pointer;
  transition: var(--transition);
}

.mobile-lang-fab-toggle:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.mobile-lang-fab-toggle svg:first-child {
  color: var(--color-brand);
  flex-shrink: 0;
}

.mobile-lang-fab-icon {
  transition: transform 0.25s ease;
  color: var(--color-muted);
  flex-shrink: 0;
}

.mobile-lang-fab-toggle[aria-expanded="true"] .mobile-lang-fab-icon {
  transform: rotate(180deg);
  color: var(--color-brand);
}

.mobile-lang-fab-panel {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  min-width: 140px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card-hover);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.mobile-lang-fab-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-lang-fab-panel a {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
}

.mobile-lang-fab-panel a:hover,
.mobile-lang-fab-panel a[aria-current="true"] {
  color: var(--color-brand);
  background-color: var(--color-light-bg);
}

.mobile-lang-fab-panel a[aria-current="true"]::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-left: auto;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 28px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-muted);
  transition: var(--transition);
  position: relative;
  text-decoration: none;
}

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

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

/* ===== 桌面端导航下拉 ===== */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-icon {
  transition: transform 0.2s ease;
  opacity: 0.7;
}

.nav-dropdown:hover .nav-dropdown-icon,
.nav-dropdown:focus-within .nav-dropdown-icon {
  transform: rotate(180deg);
  opacity: 1;
}

.nav-dropdown-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 1001;
}

.nav-dropdown-panel::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background-color: var(--color-white);
  border-left: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}

.nav-dropdown:hover .nav-dropdown-panel,
.nav-dropdown:focus-within .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-link {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-dropdown-link:hover,
.nav-dropdown-link.active {
  color: var(--color-brand);
  background-color: var(--color-light-bg);
}

.nav-dropdown-link-all {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  color: var(--color-brand);
  font-weight: 600;
}

.nav-dropdown-link-all:hover {
  background-color: rgba(0, 168, 143, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
}

.lang-switch a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.lang-switch a:hover,
.lang-switch a[aria-current="true"] {
  color: var(--color-brand);
}

.lang-divider {
  opacity: 0.4;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-brand);
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .lang-switch {
    display: flex;
  }
}

@media (max-width: 1023px) {
  .logo-mark {
    font-size: 16px;
  }

  .header-actions {
    gap: 10px;
  }

  .header-actions .btn {
    padding: 8px 14px;
    font-size: 13px;
  }

  .mobile-fixed-cta {
    display: none !important;
  }
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background-color: var(--color-white);
  z-index: 1100;
  transform: translateX(100%);
  transition: transform 0.3s ease-out;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-nav);
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.menu-close,
.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-brand);
}

.mobile-nav {
  flex: 1;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  padding: 14px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.mobile-nav-link:hover,
.mobile-nav-link.active,
.mobile-menu-link:hover,
.mobile-menu-link.active {
  background-color: var(--color-light-bg);
  color: var(--color-brand);
}

.mobile-menu-link {
  padding: 14px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
}

.mobile-menu-actions {
  padding: 20px;
  border-top: 1px solid var(--color-border);
}

.mobile-menu-footer {
  padding: 20px;
  border-top: 1px solid var(--color-border);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 37, 64, 0.4);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

body.menu-open {
  overflow: hidden;
}

/* ===== 移动端导航 accordion ===== */
.mobile-menu-nav {
  flex: 1;
  padding: 12px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  padding: 14px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
}

.mobile-menu-link:hover,
.mobile-menu-link.active,
.mobile-accordion-toggle:hover,
.mobile-accordion-toggle[aria-expanded="true"] {
  background-color: var(--color-light-bg);
  color: var(--color-brand);
}

.mobile-accordion {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mobile-accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.mobile-accordion-icon {
  transition: transform 0.25s ease;
  flex-shrink: 0;
  color: var(--color-muted);
}

.mobile-accordion-toggle[aria-expanded="true"] .mobile-accordion-icon {
  transform: rotate(180deg);
  color: var(--color-brand);
}

.mobile-accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, opacity 0.25s ease-out;
  opacity: 0;
  display: flex;
  flex-direction: column;
  padding: 0 8px;
}

.mobile-accordion-panel.is-open {
  max-height: 400px;
  opacity: 1;
  padding-bottom: 8px;
}

.mobile-submenu-link {
  display: flex;
  align-items: center;
  padding: 10px 12px 10px 28px;
  font-size: 15px;
  color: var(--color-muted);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.mobile-submenu-link::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-border);
  transition: background-color 0.2s ease;
}

.mobile-submenu-link:hover,
.mobile-submenu-link.active {
  color: var(--color-brand);
  background-color: rgba(0, 168, 143, 0.06);
}

.mobile-submenu-link:hover::before,
.mobile-submenu-link.active::before {
  background-color: var(--color-accent);
}

/* ===== 移动端语言切换 ===== */
.mobile-menu-actions {
  padding: 16px 20px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-lang-accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-white);
}

.mobile-lang-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-lang-toggle > span {
  flex: 1;
  text-align: left;
}

.mobile-lang-toggle svg:first-child {
  color: var(--color-brand);
  flex-shrink: 0;
}

.mobile-lang-icon {
  transition: transform 0.25s ease;
  color: var(--color-muted);
  flex-shrink: 0;
}

.mobile-lang-toggle[aria-expanded="true"] .mobile-lang-icon {
  transform: rotate(180deg);
  color: var(--color-brand);
}

.mobile-lang-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out, opacity 0.2s ease-out;
  opacity: 0;
  display: flex;
  flex-direction: column;
  border-top: 1px solid transparent;
}

.mobile-lang-panel.is-open {
  max-height: 120px;
  opacity: 1;
  border-top-color: var(--color-border);
}

.mobile-lang-panel a {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--color-muted);
  text-decoration: none;
  transition: var(--transition);
}

.mobile-lang-panel a:hover,
.mobile-lang-panel a[aria-current="true"] {
  color: var(--color-brand);
  background-color: var(--color-light-bg);
}

.mobile-lang-panel a[aria-current="true"]::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-left: auto;
}

/* Hero - 全屏背景采购决策入口 */
.hero {
  position: relative;
  padding-top: var(--header-height);
  color: var(--color-text-light);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to right,
    rgba(5, 26, 36, 0.85) 0%,
    rgba(5, 26, 36, 0.78) 35%,
    rgba(5, 26, 36, 0.55) 55%,
    rgba(5, 26, 36, 0.25) 70%,
    rgba(5, 26, 36, 0.05) 85%,
    transparent 100%
  );
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  align-items: center;
  min-height: min(90vh, 760px);
}

.hero-content {
  width: 100%;
  max-width: var(--container-max);
  padding-top: 48px;
  padding-bottom: 48px;
  position: relative;
  z-index: 2;
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.85);
}

.hero .eyebrow::before {
  background-color: rgba(255, 255, 255, 0.5);
}

.hero-title {
  color: var(--color-white);
  margin-bottom: 24px;
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.1;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: clamp(44px, 5vw, 68px);
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: clamp(52px, 5vw, 72px);
  }
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 16px;
  max-width: 720px;
}

.hero-industry-line {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 28px;
  max-width: 720px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  transition: var(--transition);
}

.hero-tag:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-actions .btn-primary {
  background-color: var(--color-amber);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.3);
}

.hero-actions .btn-primary:hover {
  background-color: #8F3D07;
  box-shadow: 0 8px 22px rgba(180, 83, 9, 0.4);
}

.hero-actions .btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.hero-actions .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.55);
}

@media (min-width: 768px) and (max-width: 1023px) {
  .hero-content {
    max-width: var(--container-max);
  }
}

@media (min-width: 1024px) {
  .hero-content {
    max-width: var(--container-max);
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .hero-subtitle {
    font-size: 18px;
  }
}

@media (max-width: 767px) {
  .hero-content {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero .eyebrow {
    justify-content: center;
  }

  .hero-subtitle,
  .hero-industry-line {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-tags,
  .hero-actions,
  .hero-stats {
    justify-content: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-overlay {
    background: linear-gradient(
      to bottom,
      rgba(5, 26, 36, 0.88) 0%,
      rgba(5, 26, 36, 0.78) 50%,
      rgba(5, 26, 36, 0.65) 100%
    );
  }

  .hero-stat {
    flex-direction: row;
    text-align: left;
  }
}

/* Hero mini-stat 卡片 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-width: 100%;
}

@media (min-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.hero-stat:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

.hero-stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  flex-shrink: 0;
}

.hero-stat-icon svg {
  width: 16px;
  height: 16px;
}

.hero-stat-text {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
}

@media (max-width: 767px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .hero-stat {
    flex-direction: row;
    text-align: left;
    padding: 10px 12px;
  }
}

/* 通用 section */
.section {
  padding: var(--space-7) 0;
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-8) 0;
  }
}

.section--tight {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.section--default {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.section--loose {
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
}

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

.bg-warm {
  background-color: var(--color-warm-bone);
}

.bg-dark,
.bg-graphite {
  background-color: var(--color-graphite);
}

.section-header {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-header-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-brand);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
}

.section-title-light {
  color: var(--color-text-light);
}

.section-subtitle-light {
  color: var(--color-text-dim);
}

.section-footer {
  margin-top: 40px;
  text-align: center;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 32px;
  }
}

@media (min-width: 1024px) {
  .section-title {
    font-size: 36px;
  }
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  gap: 20px;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 卡片 */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  border: 1px solid transparent;
}

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

.card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background-color: var(--color-light-bg);
  color: var(--color-brand);
  margin-bottom: 20px;
  transition: var(--transition);
}

.card-link:hover .card-icon {
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 8px;
}

.card-title-sm {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 6px;
}

.card-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
  flex: 1;
}

.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-rock-teal);
}

.card-link:hover .card-arrow span {
  transform: translateX(4px);
}

.card-arrow span {
  display: inline-block;
  transition: var(--transition);
}

/* 特色彩色卡片 */
.card-featured {
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
}

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

.card-featured .card-icon {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.card-featured .card-title,
.card-featured .card-text,
.card-featured .card-arrow {
  color: var(--color-white);
}

.card-featured .card-arrow {
  color: var(--color-text-dim);
}

.card-featured-teal {
  background-color: var(--color-rock-teal-light);
  box-shadow: none;
}

.card-featured-teal .card-icon {
  background-color: var(--color-white);
  color: var(--color-rock-teal);
}

.card-featured-blue {
  background-color: var(--color-steel-blue-light);
  box-shadow: none;
}

.card-featured-blue .card-icon {
  background-color: var(--color-white);
  color: var(--color-steel-blue);
}

.card-featured-amber {
  background-color: var(--color-amber-light);
  box-shadow: none;
}

.card-featured-amber .card-icon {
  background-color: var(--color-white);
  color: var(--color-amber);
}

.card-outline {
  background-color: var(--color-white);
  border-color: var(--color-border);
  box-shadow: none;
}

.card-outline:hover {
  border-color: var(--color-brand);
}

.card-muted {
  background-color: var(--color-light-bg);
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.card-muted:hover {
  box-shadow: var(--shadow-card);
}

/* 构件类型 - 突出前两张 */
.component-grid .card:nth-child(1),
.component-grid .card:nth-child(2) {
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border-color: transparent;
}

.component-grid .card:nth-child(1) .card-icon,
.component-grid .card:nth-child(2) .card-icon {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.component-grid .card:nth-child(1) .card-title,
.component-grid .card:nth-child(2) .card-title,
.component-grid .card:nth-child(1) .card-text,
.component-grid .card:nth-child(2) .card-text {
  color: var(--color-white);
}

.component-grid .card:nth-child(1) .card-arrow,
.component-grid .card:nth-child(2) .card-arrow {
  color: var(--color-text-dim);
}

.component-grid .card:nth-child(n+3) {
  background-color: var(--color-white);
  border-color: var(--color-border);
  box-shadow: none;
}

.component-grid .card:nth-child(n+3):hover {
  border-color: var(--color-brand);
}

/* 应用行业 - 场景大图卡片布局 */
.industry-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.industry-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  height: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-slow);
  text-decoration: none;
}

.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.industry-card-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.industry-card-bg picture,
.industry-card-bg img {
  width: 100%;
  height: 100%;
}

.industry-card-bg img {
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.industry-card:hover .industry-card-bg img {
  transform: scale(1.05);
}

.industry-card-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(5, 26, 36, 0.88) 0%,
    rgba(5, 26, 36, 0.65) 35%,
    rgba(5, 26, 36, 0.35) 65%,
    rgba(5, 26, 36, 0.2) 100%
  );
  pointer-events: none;
}

.industry-card-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 20px;
  color: var(--color-white);
}

.industry-card-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.industry-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.industry-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background-color: rgba(180, 83, 9, 0.9);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}

.industry-card-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 4px;
}

.industry-card-desc {
  font-size: 14px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

/* 未上线行业的占位卡片 */
.industry-card--muted {
  cursor: default;
}

.industry-card--muted .industry-card-overlay {
  background: linear-gradient(
    to top,
    rgba(5, 26, 36, 0.78) 0%,
    rgba(5, 26, 36, 0.55) 40%,
    rgba(5, 26, 36, 0.3) 70%,
    rgba(5, 26, 36, 0.15) 100%
  );
}

.industry-card--muted .industry-card-bg img {
  filter: grayscale(0.6);
  opacity: 0.85;
}

.industry-card--muted:hover {
  transform: none;
  box-shadow: var(--shadow-card);
}

.industry-card--muted:hover .industry-card-bg img {
  transform: none;
}

.industry-card-soon {
  display: inline-flex;
  align-items: center;
  margin-top: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}

@media (min-width: 640px) {
  .industry-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .industry-card {
    height: 220px;
  }
}

@media (min-width: 1024px) {
  .industry-cards {
    gap: 24px;
  }

  .industry-card {
    height: 240px;
  }

  .industry-card-content {
    padding: 24px;
  }

  .industry-card-title {
    font-size: 22px;
  }
}

/* 痛点模块 - 2列分层排版 */
.painpoints-grid {
  display: grid;
  gap: 40px;
  align-items: start;
}

.painpoints-lead {
  position: sticky;
  top: calc(var(--header-height) + 40px);
}

.painpoints-lead .section-title {
  margin-bottom: 20px;
}

.painpoints-summary {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.painpoints-summary strong {
  color: var(--color-brand);
  font-weight: 600;
}

.painpoint-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 24px;
}

.painpoint-list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 15px;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-border) 0%, var(--color-rock-teal) 50%, var(--color-border) 100%);
}

.painpoint-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  margin-bottom: 16px;
}

.painpoint-item:hover {
  border-color: var(--color-brand);
  transform: translateX(6px);
  box-shadow: var(--shadow-card-hover);
}

.painpoint-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-brand);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  position: absolute;
  left: -32px;
  top: 24px;
  z-index: 2;
}

.painpoint-item:hover .painpoint-number {
  background-color: var(--color-brand);
  border-color: var(--color-brand);
  color: var(--color-white);
}

.painpoint-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 4px;
}

.painpoint-content p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

@media (min-width: 1024px) {
  .painpoints-grid {
    grid-template-columns: 0.4fr 0.6fr;
    gap: 60px;
  }
}

/* 流程步骤 - 水平时间轴 */
.process-steps {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 24px;
  position: relative;
}

.process-step {
  position: relative;
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
  text-align: left;
  z-index: 2;
  border: 1px solid transparent;
  transition: var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-brand);
}

.process-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-light-bg);
  color: var(--color-brand);
  margin-bottom: 16px;
  position: relative;
}

.process-badge::before {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
}

.process-badge-number {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.process-badge-crosshair {
  position: absolute;
  inset: 0;
  color: var(--color-rock-teal);
  opacity: 0.4;
}

.process-number {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-rock-teal);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.process-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 8px;
}

.process-text {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.6;
}

.process-line {
  display: none;
}

@media (min-width: 1024px) {
  .process-steps {
    flex-direction: row;
    justify-content: center;
    gap: 0;
  }

  .process-step {
    flex: 1;
    max-width: 260px;
    text-align: center;
    margin: 0 14px;
  }

  .process-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .process-line {
    display: block;
    position: absolute;
    top: 24px;
    left: 12%;
    right: 12%;
    height: 2px;
    background-color: var(--color-border);
    z-index: 1;
  }

  .process-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-brand), var(--color-rock-teal));
    box-shadow: 0 0 12px rgba(14, 94, 94, 0.35);
    transition: width 1.2s ease-out;
  }

  .process-line.is-visible .process-line-progress {
    width: 100%;
  }
}

/* 通用深色 CTA 区（能力页复用） */
.dark-section {
  background-color: var(--color-graphite);
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 30% 20%, rgba(14, 94, 94, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(180, 83, 9, 0.08) 0%, transparent 50%);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.dark-section::before {
  content: "";
  position: absolute;
  top: 40px;
  right: 40px;
  width: 120px;
  height: 120px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='0.5' opacity='0.15'%3E%3Cline x1='50' y1='0' x2='50' y2='100'/%3E%3Cline x1='0' y1='50' x2='100' y2='50'/%3E%3Ccircle cx='50' cy='50' r='30'/%3E%3Ccircle cx='50' cy='50' r='45'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.dark-section .container {
  position: relative;
  z-index: 2;
}

.form-section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.dark-section .form-section-header {
  position: relative;
  z-index: 2;
}

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

/* 深色 CTA 区按钮覆盖：避免深色按钮在深背景上融为一体 */
.dark-section .btn-primary {
  background-color: var(--color-white);
  color: var(--color-brand);
  border-color: var(--color-white);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.dark-section .btn-primary:hover {
  background-color: var(--color-light-bg);
  border-color: var(--color-light-bg);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
}

.dark-section .btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.55);
}

.dark-section .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.8);
}

/* 准备模块 */
.prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.prepare-table {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  max-width: 100%;
}

.prepare-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
  word-break: break-word;
  overflow-wrap: break-word;
}

.prepare-row:hover {
  background-color: var(--color-warm-bone);
}

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

.prepare-dim {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-rock-teal);
}

.prepare-dim::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.prepare-info {
  font-size: 15px;
  color: var(--color-brand);
  font-weight: 500;
}

.prepare-example {
  font-size: 13px;
  color: var(--color-weak);
}

.prepare-actions {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.prepare-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.prepare-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 8px;
}

.prepare-card-text {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

@media (min-width: 768px) {
  .prepare-row {
    grid-template-columns: 120px 1fr 1fr;
    align-items: center;
    gap: 16px;
  }
}

@media (min-width: 1024px) {
  .prepare-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
  }
}

/* 供应商网络 */
.network-map {
  margin-bottom: 32px;
}

.region-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.region-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.region-card::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 8px;
  flex-shrink: 0;
}

.region-name {
  font-size: 14px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: 4px;
}

.region-cities {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
}

.cap-tag {
  display: inline-flex;
  padding: 8px 16px;
  background-color: var(--color-white);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.cap-tag:hover {
  background-color: var(--color-brand);
  color: var(--color-white);
  border-color: var(--color-brand);
}

.tier-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  margin-bottom: 40px;
}

.tier-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.tier-badge {
  display: inline-flex;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.tier-a {
  background-color: var(--color-brand);
  color: var(--color-white);
}

.tier-b {
  background-color: var(--color-steel-blue-light);
  color: var(--color-steel-blue);
}

.tier-c {
  background-color: var(--color-light-bg);
  color: var(--color-muted);
}

.tier-desc {
  font-size: 15px;
  color: var(--color-muted);
}

@media (min-width: 640px) {
  .region-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tier-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .region-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 典型需求场景 */
.scenario-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4, 16px);
}

@media (min-width: 640px) {
  .scenario-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .scenario-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card-scenario {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 12px);
  padding: var(--space-5, 20px);
  background-color: var(--color-white);
  border: 1px solid var(--color-border, #E8EBEF);
  border-radius: var(--radius-md, 12px);
  transition: var(--transition);
}

.card-scenario:hover {
  border-color: var(--color-amber, #B86E16);
  box-shadow: var(--shadow-sm);
}

.card-scenario::before {
  content: attr(data-index);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-amber, #B86E16);
  background-color: rgba(184, 110, 22, 0.1);
  border-radius: 8px;
}

.card-scenario .card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-charcoal, #162C35);
  margin: 0;
}

.card-scenario .card-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-slate, #4A5568);
  margin: 0;
}

/* Why 模块 */
.why-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.why-content {
  position: relative;
}

.why-content::before {
  content: "";
  position: absolute;
  left: 0;
  top: 80px;
  bottom: 60px;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-border) 0%, var(--color-rock-teal) 50%, var(--color-border) 100%);
}

.why-subtitle {
  margin-bottom: 28px;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
  padding-left: 24px;
}

.why-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.why-list li::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-rock-teal);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 1px var(--color-border);
}

.why-list strong {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-brand);
}

.why-list span {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
}

.why-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: linear-gradient(135deg, var(--color-border) 0%, var(--color-light-bg) 100%);
  border: 1px solid var(--color-border);
}

.why-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.why-image-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  pointer-events: none;
}

.why-image-corner.tl {
  top: 16px;
  left: 16px;
}

.why-image-corner.br {
  bottom: 16px;
  right: 16px;
  transform: rotate(180deg);
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }
}

/* 采购指南 */
.guides-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.guide-card {
  display: block;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.guide-card:first-child {
  padding-top: 0;
}

.guide-card:hover .guide-title {
  color: var(--color-brand);
}

.guide-card:hover .guide-arrow {
  transform: translateX(4px);
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.guide-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  color: var(--color-white);
}

.guide-tag-supplier {
  background-color: var(--color-brand);
}

.guide-tag-knowledge {
  background-color: var(--color-rock-teal);
}

.guide-tag-industry {
  background-color: var(--color-steel-blue);
}

.guide-tag-process {
  background-color: var(--color-amber);
}

.guide-tag-region {
  background-color: #6B7280;
}

.guide-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 6px;
  transition: var(--transition);
}

.guide-arrow {
  display: inline-block;
  color: var(--color-rock-teal);
  transition: var(--transition);
}

.guide-excerpt {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
}

/* 表单模块 */
.section-form {
  background-color: var(--color-brand);
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 20% 30%, rgba(180, 83, 9, 0.1) 0%, transparent 45%);
}

.form-grid-layout {
  display: grid;
  gap: 48px;
  align-items: start;
}

.form-value-summary {
  color: var(--color-text-dim);
  position: relative;
}

.form-value-summary .statement {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.form-value-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.form-value-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.form-value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
  flex-shrink: 0;
}

.form-value-item span {
  font-size: 15px;
  line-height: 1.6;
  padding-top: 8px;
}

.demand-form {
  background-color: var(--color-secondary-dark);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.demand-form::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-rock-teal));
}

.form-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-dim);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  font-size: 15px;
  transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-weak);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-text-dim);
  background-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

.form-group textarea {
  height: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235E7580' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

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

.required {
  color: #ef4444;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.radio-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text-dim);
  cursor: pointer;
}

.radio-label input {
  width: auto;
  height: auto;
}

.form-group-file input {
  padding: 10px 16px;
  height: auto;
}

.file-hint {
  font-size: 12px;
  color: var(--color-weak);
}

.form-submit {
  margin-top: 28px;
  text-align: center;
}

.form-submit .btn-primary {
  width: 100%;
  background-color: var(--color-accent);
}

.form-submit .btn-primary:hover {
  background-color: #92400E;
}

.form-privacy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-weak);
}

.form-success {
  text-align: center;
  padding: 48px 24px;
  background-color: var(--color-secondary-dark);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.form-success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: rgba(180, 83, 9, 0.15);
  color: var(--color-accent);
  margin-bottom: 20px;
}

.form-success-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.form-success-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dim);
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-group-full {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .form-grid-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
  }

  .demand-form {
    padding: 40px 32px;
  }
}

/* 首页转化表单 - 简化版 */
.homepage-form {
  background-color: var(--color-warm-bone);
}

.homepage-form-grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.homepage-form-summary .statement {
  color: var(--color-brand);
  margin-bottom: 20px;
}

.homepage-form-value-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.homepage-form-value-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.homepage-form-value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  flex-shrink: 0;
}

.homepage-form-value-item span {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
  padding-top: 8px;
}

.homepage-form-card .submit-form-card {
  height: 100%;
}

@media (min-width: 1024px) {
  .homepage-form-grid {
    grid-template-columns: 0.33fr 0.67fr;
    gap: 40px;
  }
}

/* 首页底部完整表单 */
.section-form-full {
  background-color: var(--color-warm-bone);
}

.section-form-full-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.section-form-full-grid > * {
  min-width: 0;
}

.section-form-full-summary .statement {
  color: var(--color-brand);
  margin-bottom: 20px;
}

@media (min-width: 1024px) {
  .section-form-full-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
  }
}

/* 页脚 */
.site-footer {
  background-color: var(--color-primary-dark);
  color: var(--color-text-dim);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding: var(--space-8) 0 var(--space-7);
}

.footer-brand {
  max-width: 280px;
}

.footer-tagline {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--space-4);
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-link-meta {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-4) 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-icp {
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-icp a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-icp a:hover {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* 面包屑 */
.breadcrumb {
  background-color: var(--color-bg-warm, #FAFAF8);
  border-bottom: 1px solid var(--color-border, #E8EBEF);
  padding: var(--space-3) 0;
  margin-top: var(--header-height);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
}

.breadcrumb-item:not(:last-child)::after {
  content: ">";
  margin: 0 8px;
  color: var(--color-muted);
}

.breadcrumb-item a {
  color: var(--color-muted);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--color-charcoal);
}

.breadcrumb-item.active {
  color: var(--color-charcoal);
  font-weight: 500;
}

/* 移动端固定 CTA */
.mobile-fixed-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-mobile-cta);
}

.mobile-fixed-cta .btn {
  flex: 1;
}

@media (max-width: 1023px) {
  body {
    padding-bottom: 72px;
  }
}

@media (min-width: 1024px) {
  .mobile-fixed-cta {
    display: none;
  }
}

/* 滚动动画 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-children.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* blurIn */
.blur-in {
  opacity: 0;
  filter: blur(8px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), filter 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.blur-in.is-visible {
  opacity: 1;
  filter: blur(0);
}

/* clipReveal */
.clip-reveal {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.clip-reveal.is-visible {
  clip-path: inset(0 0 0 0);
}

/* stagger 子元素 */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* lineDraw */
.line-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.5s ease-out;
}

.line-draw.is-visible {
  stroke-dashoffset: 0;
}

/* 为移动设备减少动画 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .blur-in,
  .clip-reveal,
  .stagger-children > *,
  .reveal-children > * {
    opacity: 1;
    transform: none;
    filter: none;
    clip-path: none;
  }

  .line-draw {
    stroke-dashoffset: 0;
  }
}

/* ========================================
   提交需求页 submit-demand.html 专用样式
   基于 DESIGN-SYSTEM.md v2
   ======================================== */

.page-submit-demand {
  background-color: var(--color-warm-bone);
}

/* Hero 分栏布局 */
.submit-hero {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 64px;
  background-color: var(--color-warm-bone);
}

.submit-hero-grid {
  display: grid;
  gap: 48px;
  align-items: start;
}

.submit-hero-content {
  text-align: center;
}

.submit-hero-content .display {
  font-size: 32px;
  line-height: 1.2;
  margin-bottom: 16px;
}

.submit-hero-content .lead {
  font-size: 17px;
  color: var(--color-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.submit-hero-content .hero-tags {
  justify-content: center;
  margin-bottom: 24px;
}

.hero-trust-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 320px;
  margin: 0 auto;
  text-align: left;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.hero-trust-item svg {
  flex-shrink: 0;
  color: var(--color-rock-teal);
}

.submit-hero-form {
  position: relative;
}

@media (min-width: 1024px) {
  .submit-hero {
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 96px;
  }

  .submit-hero-grid {
    grid-template-columns: 1fr 0.85fr;
    gap: 64px;
    align-items: center;
  }

  .submit-hero-content {
    text-align: left;
  }

  .submit-hero-content .display {
    font-size: 44px;
  }

  .submit-hero-content .lead {
    font-size: 19px;
  }

  .submit-hero-content .hero-tags {
    justify-content: flex-start;
  }

  .hero-trust-badges {
    margin: 0;
  }

  .submit-hero-form {
    position: sticky;
    top: calc(var(--header-height) + 32px);
  }
}

/* 右侧表单卡片 */
.submit-form-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 28px 20px;
}

@media (min-width: 640px) {
  .submit-form-card {
    padding: 36px 28px;
  }
}

@media (min-width: 1024px) {
  .submit-form-card {
    padding: 40px 36px;
  }
}

/* 表单标题 */
.sf-section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.sf-form-detailed .sf-section-title {
  margin-top: 8px;
}

/* 字段与网格 */
.sf-form-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.sf-form-grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .sf-form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sf-form-full {
  grid-column: 1 / -1;
}

.sf-form-grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .sf-form-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .sf-form-col-2 {
    grid-column: span 2;
  }
}

.sf-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sf-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary-dark);
}

.sf-label .required {
  color: #ef4444;
  margin-left: 2px;
}

/* 输入框 */
.sf-input,
.sf-select,
.sf-textarea {
  width: 100%;
  padding: 12px 14px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
  font-size: 15px;
  line-height: 1.5;
  transition: var(--transition);
}

.sf-input:focus,
.sf-select:focus,
.sf-textarea:focus {
  border-color: var(--color-rock-teal);
  box-shadow: 0 0 0 3px rgba(14, 94, 94, 0.12);
  outline: none;
}

.sf-input::placeholder,
.sf-textarea::placeholder {
  color: #6b7280;
}

.sf-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235E7580' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.sf-textarea {
  min-height: 96px;
  resize: vertical;
}

/* 单选 / 复选 */
.sf-radio-fieldset,
.sf-checkbox-fieldset {
  border: none;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.sf-radio-fieldset legend,
.sf-checkbox-fieldset legend {
  padding: 0;
  margin-bottom: 8px;
  float: left;
  width: 100%;
}

.sf-radio-fieldset legend + *,
.sf-checkbox-fieldset legend + * {
  clear: both;
}

.sf-radio-group,
.sf-checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sf-radio-label,
.sf-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background-color: var(--color-light-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-muted);
  cursor: pointer;
  transition: var(--transition);
  min-height: 44px;
}

.sf-radio-label:hover,
.sf-checkbox-label:hover {
  border-color: var(--color-rock-teal);
}

.sf-radio-label.is-checked,
.sf-checkbox-label.is-checked {
  background-color: var(--color-rock-teal-light);
  border-color: var(--color-rock-teal);
  color: var(--color-rock-teal);
}

.sf-radio-label input,
.sf-checkbox-label input {
  width: 16px;
  height: 16px;
  accent-color: var(--color-rock-teal);
  cursor: pointer;
}

.sf-radio-label:focus-within,
.sf-checkbox-label:focus-within {
  outline: 2px solid var(--color-rock-teal);
  outline-offset: 2px;
}

/* 文件上传 */
.sf-file-upload {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 28px 20px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-light-bg);
  text-align: center;
  transition: var(--transition);
}

.sf-file-upload:hover {
  border-color: var(--color-rock-teal);
}

.sf-file-upload:focus-within {
  border-color: var(--color-rock-teal);
  border-style: solid;
  box-shadow: 0 0 0 3px rgba(14, 94, 94, 0.12);
}

.sf-file-upload input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.sf-file-upload-icon {
  color: var(--color-rock-teal);
}

.sf-file-upload-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary-dark);
}

.sf-file-upload-hint {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
}

/* 折叠详细参数 */
.sf-form-detailed {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.45s ease-out, opacity 0.35s ease-out, margin 0.35s ease-out;
}

.sf-form-detailed.is-open {
  max-height: 2500px;
  opacity: 1;
  margin-top: 8px;
}

.sf-subsection {
  margin-bottom: 24px;
}

.sf-subsection-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.sf-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  margin-top: 4px;
  min-height: 44px;
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-rock-teal);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.sf-toggle-btn:hover {
  background-color: var(--color-rock-teal-light);
  border-color: var(--color-rock-teal);
}

.sf-toggle-btn:focus-visible {
  outline: 2px solid var(--color-rock-teal);
  outline-offset: 2px;
}

.toggle-icon {
  transition: transform 0.3s ease-out;
}

.sf-toggle-btn.is-open .toggle-icon {
  transform: rotate(180deg);
}

/* 提交区 */
.sf-form-submit {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.sf-form-submit .btn {
  width: 100%;
}

.sf-form-privacy {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-weak);
  line-height: 1.6;
}

.sf-form-privacy svg {
  flex-shrink: 0;
  color: var(--color-rock-teal);
  margin-top: 2px;
}

/* 成功消息 */
.sf-form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 24px;
}

.sf-form-success:not([hidden]) {
  display: flex;
}

.sf-form-success-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  border-radius: 50%;
  margin-bottom: 20px;
}

.sf-form-success-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.sf-form-success-text {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto 24px;
}

/* 常见问题 */
.submit-faq-section {
  background-color: var(--color-white);
  padding-top: 80px;
  padding-bottom: 80px;
}

.submit-faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.submit-faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.submit-faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background-color: var(--color-white);
  border: none;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary-dark);
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s ease-out;
}

.submit-faq-question:hover {
  background-color: var(--color-light-bg);
}

.submit-faq-question:focus-visible {
  outline: 2px solid var(--color-rock-teal);
  outline-offset: -2px;
}

.submit-faq-icon {
  flex-shrink: 0;
  color: var(--color-weak);
  transition: transform 0.3s ease-out;
}

.submit-faq-item.is-open .submit-faq-icon {
  transform: rotate(180deg);
}

.submit-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
}

.submit-faq-item.is-open .submit-faq-answer {
  max-height: 500px;
}

.submit-faq-answer-inner {
  padding: 0 20px 18px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* 深色 CTA */
.submit-cta-section {
  background-color: var(--color-graphite);
  color: var(--color-text-light);
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
}

.submit-cta-section .display-sm {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.submit-cta-section .lead {
  font-size: 16px;
  color: var(--color-text-dim);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 24px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* 深色 CTA 区域按钮增强可见性 */
.submit-cta-section .btn-primary {
  background-color: var(--color-rock-teal);
  color: var(--color-white);
  border-color: var(--color-rock-teal);
  box-shadow: 0 4px 14px rgba(14, 94, 94, 0.35);
}

.submit-cta-section .btn-primary:hover {
  background-color: #0A4A4A;
  border-color: #0A4A4A;
  transform: translateY(-2px);
}

.submit-cta-section .btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.55);
}

.submit-cta-section .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .submit-cta-section .display-sm {
    font-size: 36px;
  }

  .submit-cta-section .lead {
    font-size: 18px;
  }
}

/* JS 禁用时显示 reveal 内容 */
noscript .reveal,
.no-js .reveal {
  opacity: 1 !important;
  transform: none !important;
  filter: none !important;
  clip-path: none !important;
}

/* ========================================
   submit-demand 页新增样式（低门槛提交版）
   ======================================== */

/* 适合提交哪些需求 */
.section-fit {
  background-color: var(--color-white);
}

.fit-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.fit-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.fit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  margin-bottom: 16px;
}

.fit-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

.fit-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

@media (min-width: 640px) {
  .fit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .fit-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .fit-card:last-child {
    grid-column: span 1;
  }
}

/* 表单分区提示 */
.sf-section-hint {
  font-size: 14px;
  color: var(--color-weak);
  line-height: 1.6;
  margin-top: -8px;
  margin-bottom: 20px;
}

.sf-section-title-sub {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

/* 次要折叠按钮 */
.sf-toggle-btn-secondary {
  background-color: transparent;
  border: 1px dashed var(--color-border);
  color: var(--color-muted);
}

.sf-toggle-btn-secondary:hover {
  border-color: var(--color-rock-teal);
  color: var(--color-rock-teal);
  background-color: var(--color-rock-teal-light);
}

/* 图纸隐私说明 */
.sf-privacy-box {
  margin-top: 20px;
  padding: 16px;
  background-color: var(--color-light-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.sf-privacy-box-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

.sf-privacy-box-title svg {
  flex-shrink: 0;
  color: var(--color-rock-teal);
}

.sf-privacy-box-list {
  padding-left: 18px;
  list-style: decimal;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}

.sf-privacy-box-list li {
  margin-bottom: 4px;
}

/* 双列单选组 */
.sf-radio-group-2col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 640px) {
  .sf-radio-group-2col {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 提交后价值模块 */
.section-value {
  background-color: var(--color-warm-bone);
  padding-top: 80px;
  padding-bottom: 80px;
}

.value-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.value-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.value-card:hover {
  border-color: var(--color-rock-teal);
  box-shadow: var(--shadow-card);
}

.value-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  border-radius: 10px;
  margin-bottom: 16px;
}

.value-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

.value-card-text {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.value-section-trust {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  max-width: 560px;
  margin: 32px auto 0;
  padding: 16px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.value-section-trust svg {
  flex-shrink: 0;
  color: var(--color-rock-teal);
  margin-top: 2px;
}

@media (min-width: 640px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .value-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ========================================
   about.html SEO 重排版新增样式
   ======================================== */

/* About Hero 在浅色背景上，文字应为深色，双列布局 */
.about-hero {
  background-color: var(--color-warm-bone);
  min-height: auto;
  color: var(--color-primary-dark);
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 64px;
}

.about-hero .hero-inner {
  display: grid;
  gap: 48px;
  align-items: center;
  min-height: auto;
}

.about-hero .hero-content {
  padding-top: 0;
  padding-bottom: 0;
}

.about-hero .eyebrow {
  color: var(--color-rock-teal);
}

.about-hero .hero-title,
.about-hero .hero-subtitle,
.about-hero .hero-note {
  color: var(--color-primary-dark);
}

.about-hero .hero-title {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.about-hero .hero-subtitle {
  opacity: 0.85;
}

.about-hero .hero-note {
  color: var(--color-muted);
}

.about-hero .hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: linear-gradient(135deg, var(--color-rock-teal-light) 0%, var(--color-steel-blue-light) 100%);
  align-self: start;
}

.about-hero .hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

@media (min-width: 1024px) {
  .about-hero {
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 100px;
  }

  .about-hero .hero-inner {
    grid-template-columns: 1.25fr 1fr;
    gap: 32px;
  }
}

/* 我们帮助谁 */
.about-audience {
  background-color: var(--color-warm-bone);
}

.audience-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.audience-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.audience-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  margin-bottom: 16px;
}

.audience-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

.audience-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.audience-text a {
  color: var(--color-rock-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 640px) {
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .audience-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 岩准怎么解决 */
.about-solution {
  background-color: var(--color-white);
}

.solution-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.solution-card {
  position: relative;
  background-color: var(--color-warm-bone);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.solution-number {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-rock-teal);
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.solution-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

.solution-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

@media (min-width: 640px) {
  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .solution-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 能力数据库 UI */
.about-database {
  background-color: var(--color-primary-dark);
  color: var(--color-text-light);
}

.about-database .section-title {
  color: var(--color-text-light);
}

.about-database .section-subtitle {
  color: var(--color-text-dim);
}

.database-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.database-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 24px;
  transition: var(--transition);
}

.database-card:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
}

.database-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.database-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.database-status {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: #10b981;
  background-color: rgba(16, 185, 129, 0.15);
  padding: 4px 8px;
  border-radius: var(--radius-pill);
}

.database-metric {
  margin-bottom: 12px;
}

.database-value {
  display: block;
  font-size: 26px;
  font-weight: 600;
  color: var(--color-text-light);
  line-height: 1.2;
  margin-bottom: 4px;
}

.database-name {
  display: block;
  font-size: 14px;
  color: var(--color-text-dim);
}

.database-note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-dim);
}

.database-note-wide {
  margin-top: 32px;
  padding: 20px 24px;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.database-note-wide p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-dim);
  margin: 0;
}

@media (min-width: 640px) {
  .database-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .database-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Topic Cluster 卡片（行业 / 构件） */
.topic-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.topic-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.topic-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: var(--color-rock-teal);
}

.topic-card .topic-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  margin-bottom: 12px;
}

.topic-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.topic-desc {
  font-size: 13px;
  color: var(--color-weak);
  line-height: 1.5;
}

@media (min-width: 640px) {
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .topic-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* About 页面 SEO 增强样式 */

/* Hero 关键词标签 */
.hero-keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
  justify-content: center;
}

.hero-keyword-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  background-color: var(--color-rock-teal-light);
  color: var(--color-rock-teal);
  border: 1px solid rgba(14, 94, 94, 0.15);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
}

@media (min-width: 1024px) {
  .about-hero .hero-content {
    text-align: left;
  }

  .hero-keyword-tags {
    justify-content: flex-start;
  }
}

/* About Hero 按钮应使用主深色，而不是首页的琥珀色 */
.about-hero .hero-actions .btn-primary {
  background-color: var(--color-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
}

.about-hero .hero-actions .btn-primary:hover {
  background-color: var(--color-brand-light);
  box-shadow: var(--shadow-button-hover);
}

.about-hero .hero-actions .btn-secondary {
  background-color: var(--color-white);
  color: var(--color-brand);
  border-color: var(--color-border);
}

.about-hero .hero-actions .btn-secondary:hover {
  background-color: var(--color-light-bg);
  border-color: var(--color-brand);
}

/* 构件类型模块 */
.component-type-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.component-type-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  transition: var(--transition);
}

.component-type-card:hover {
  border-color: var(--color-rock-teal);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.component-type-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.component-type-en {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-rock-teal);
  letter-spacing: 0.02em;
}

.component-type-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
  margin-top: 6px;
}

@media (min-width: 640px) {
  .component-type-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .component-type-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 服务行业卡片 6 列适配 */
@media (min-width: 1024px) {
  .audience-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* FAQ 模块 */
.about-faq {
  background-color: var(--color-white);
}

.about-faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-warm-bone);
}

.about-faq-question {
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.about-faq-question::-webkit-details-marker {
  display: none;
}

.about-faq-question::after {
  content: '+';
  flex-shrink: 0;
  font-size: 20px;
  color: var(--color-rock-teal);
  font-weight: 400;
}

.about-faq-item[open] .about-faq-question::after {
  content: '−';
}

.about-faq-answer {
  padding: 0 20px 18px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
}

.about-faq-answer p {
  margin-bottom: 12px;
}

.about-faq-answer p:last-child {
  margin-bottom: 0;
}

/* Topic Navigation */
.about-topics {
  background-color: var(--color-warm-bone);
  padding-top: 80px;
  padding-bottom: 80px;
}

.topic-nav-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.topic-nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 22px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
}

.topic-nav-card:hover {
  border-color: var(--color-rock-teal);
  box-shadow: var(--shadow-card);
}

.topic-nav-name {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-rock-teal);
}

.topic-nav-desc {
  font-size: 14px;
  color: var(--color-muted);
}

@media (min-width: 640px) {
  .topic-nav-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .topic-nav-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ============================================================
   Component Listing Page Additions
   ============================================================ */

/* 构件列表页 Hero - 浅色侧图布局 */
.components-hero {
  background-color: var(--color-light-bg);
  min-height: auto;
  color: var(--color-primary-dark);
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 64px;
}

.components-hero .hero-inner {
  display: grid;
  gap: 48px;
  align-items: center;
  min-height: auto;
}

.components-hero .hero-content {
  padding-top: 0;
  padding-bottom: 0;
}

.components-hero .eyebrow {
  color: var(--color-rock-teal);
}

.components-hero .hero-title,
.components-hero .hero-subtitle,
.components-hero .hero-note {
  color: var(--color-primary-dark);
}

.components-hero .hero-title {
  font-size: clamp(36px, 4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.components-hero .hero-subtitle {
  color: var(--color-muted);
}

.components-hero .hero-note {
  color: var(--color-muted);
}

.components-hero .hero-note svg {
  color: var(--color-rock-teal);
}

.components-hero .hero-tag {
  color: rgba(5, 26, 36, 0.75);
  background-color: rgba(5, 26, 36, 0.06);
  border-color: rgba(5, 26, 36, 0.12);
}

.components-hero .hero-tag:hover {
  color: var(--color-primary-dark);
  background-color: rgba(5, 26, 36, 0.1);
  border-color: rgba(5, 26, 36, 0.2);
}

.components-hero .hero-actions .btn-primary {
  background-color: var(--color-brand);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(5, 26, 36, 0.15);
}

.components-hero .hero-actions .btn-primary:hover {
  background-color: var(--color-brand-light);
  box-shadow: 0 8px 22px rgba(5, 26, 36, 0.2);
}

.components-hero .hero-actions .btn-secondary {
  background-color: transparent;
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.components-hero .hero-actions .btn-secondary:hover {
  background-color: rgba(5, 26, 36, 0.05);
}

.components-hero .hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: linear-gradient(135deg, var(--color-rock-teal-light) 0%, var(--color-steel-blue-light) 100%);
  align-self: start;
}

.components-hero .hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

@media (min-width: 1024px) {
  .components-hero {
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 100px;
  }

  .components-hero .hero-inner {
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
  }
}

/* ============================================================
   Industry Listing Page Additions
   ============================================================ */

/* 应用行业列表页 Hero - 浅色侧图布局 */
.industries-hero {
  background-color: var(--color-light-bg);
  min-height: auto;
  color: var(--color-primary-dark);
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 64px;
}

.industries-hero .hero-inner {
  display: grid;
  gap: 48px;
  align-items: center;
  min-height: auto;
}

.industries-hero .hero-content {
  padding-top: 0;
  padding-bottom: 0;
}

.industries-hero .eyebrow {
  color: var(--color-rock-teal);
}

.industries-hero .hero-title,
.industries-hero .hero-subtitle,
.industries-hero .hero-note {
  color: var(--color-primary-dark);
}

.industries-hero .hero-title {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.industries-hero .hero-subtitle {
  color: var(--color-muted);
}

.industries-hero .hero-note {
  color: var(--color-muted);
}

.industries-hero .hero-note svg {
  color: var(--color-rock-teal);
}

.industries-hero .hero-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  color: var(--color-muted);
  font-size: 14px;
}

.industries-hero .hero-badges .sep {
  color: var(--color-weak);
}

.industries-hero .hero-actions .btn-primary {
  background-color: var(--color-brand);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(5, 26, 36, 0.15);
}

.industries-hero .hero-actions .btn-primary:hover {
  background-color: var(--color-brand-light);
  box-shadow: 0 8px 22px rgba(5, 26, 36, 0.2);
}

.industries-hero .hero-actions .btn-secondary {
  background-color: transparent;
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.industries-hero .hero-actions .btn-secondary:hover {
  background-color: rgba(5, 26, 36, 0.05);
}

.industries-hero .hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: linear-gradient(135deg, var(--color-rock-teal-light) 0%, var(--color-steel-blue-light) 100%);
  align-self: start;
}

.industries-hero .hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

@media (min-width: 1024px) {
  .industries-hero {
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 100px;
  }

  .industries-hero .hero-inner {
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
  }
}

/* 构件页 Why 区块 - 顶部对齐避免卡片溢出 */
.components-why .why-grid {
  align-items: start;
}

/* 构件列表页内嵌轻量表单 */
.components-form-wrapper {
  max-width: 720px;
  margin: 64px auto 0;
}

/* 应用行业列表页内嵌轻量表单 */
.industries-form-wrapper {
  max-width: 720px;
  margin: 64px auto 0;
}

@media (min-width: 1024px) {
  .components-form-wrapper {
    margin-top: 80px;
  }

  .industries-form-wrapper {
    margin-top: 80px;
  }
}

/* reveal-children 无脚本回退 */
noscript .reveal-children > *,
.no-js .reveal-children > * {
  opacity: 1 !important;
  transform: none !important;
}

/* 构件卡片底部参数标签 */
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  margin-bottom: 16px;
}

.card-meta .mono-voice {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-rock-teal);
  background-color: var(--color-rock-teal-light);
  padding: 4px 8px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
}

.card-featured-blue .card-meta .mono-voice {
  color: var(--color-steel-blue);
  background-color: rgba(255, 255, 255, 0.85);
}

.card-featured-amber .card-meta .mono-voice {
  color: var(--color-amber);
  background-color: rgba(255, 255, 255, 0.85);
}

/* 即将上线/占位卡片 */
.card.card--muted,
.card--feature.card--muted {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--color-white);
  border: 1px dashed var(--color-border);
  box-shadow: none;
  cursor: default;
}

.card--muted .card-icon .mono-badge {
  background-color: var(--color-border);
  color: var(--color-weak);
}

.card--muted .card-title {
  color: var(--color-muted);
}

.card--muted .card-text {
  color: var(--color-weak);
}

.card--muted .card-meta {
  margin-top: auto;
  color: var(--color-weak);
  font-size: 13px;
}

.card--muted:hover {
  transform: none;
  box-shadow: none;
}

/* 为什么选花岗岩 - 参数卡片 */
.why-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-content: start;
}

.param-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.param-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-weak);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.param-value {
  font-size: 36px;
  font-weight: 600;
  color: var(--color-brand);
  line-height: 1;
  margin-right: 4px;
}

.param-unit {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-muted);
}

.param-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-top: 12px;
  line-height: 1.5;
}



/* ========================================
   首页改造新增样式
   ======================================== */

/* Hero 行业定位句 */
.hero-industry-line {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 16px;
  margin-bottom: 28px;
  max-width: 560px;
}

@media (max-width: 767px) {
  .hero-industry-line {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }
}

/* 供应商能力核验 */
.capability-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.capability-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.capability-number {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.capability-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 8px;
}

.capability-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  margin: 0;
}

@media (min-width: 640px) {
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .capability-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .capability-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 横向内联表单 */
.form-bar-section {
  background-color: var(--color-graphite);
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 20% 30%, rgba(180, 83, 9, 0.1) 0%, transparent 45%);
  color: var(--color-text-light);
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.form-bar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}

.form-bar-text {
  flex: 0 0 auto;
  width: 100%;
}

.form-bar-title {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-white);
  margin-bottom: 10px;
}

.form-bar-subtitle {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-dim);
}

.form-bar-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  width: 100%;
}

.form-bar-input,
.form-bar-select {
  flex: 1 1 160px;
  height: 48px;
  padding: 0 14px;
  background-color: var(--color-white);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-brand);
  font-size: 15px;
  line-height: 1.4;
  transition: var(--transition);
}

.form-bar-input::placeholder {
  color: var(--color-weak);
}

.form-bar-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235E7580' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-bar-input:focus,
.form-bar-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.2);
}

.form-bar-submit {
  flex: 0 0 auto;
  height: 48px;
  padding: 0 28px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.form-bar-submit:hover {
  background-color: #92400E;
  transform: translateY(-2px);
}

@media (max-width: 767px) {
  .form-bar-form {
    flex-direction: column;
    align-items: stretch;
  }

  .form-bar-input,
  .form-bar-select,
  .form-bar-submit {
    flex: 1 1 auto;
    width: 100%;
  }
}

@media (min-width: 1024px) {
  .form-bar {
    flex-direction: row;
    align-items: center;
    gap: 40px;
  }

  .form-bar-text {
    flex: 0 0 32%;
    width: auto;
  }

  .form-bar-form {
    flex: 1 1 66%;
    justify-content: flex-end;
  }

  .form-bar-title {
    font-size: 26px;
  }
}

/* About page layout helpers */
.about-story {
  padding-top: 80px;
  padding-bottom: 80px;
}

.about-split {
  display: grid;
  gap: 40px;
}

.about-split-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.about-team-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.about-team-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
}

.about-team-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.about-team-tags {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.about-team-tags li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-primary);
}

.about-team-tags svg {
  flex-shrink: 0;
  color: var(--color-rock-teal);
  margin-top: 2px;
}

.about-boundaries-grid {
  display: grid;
  gap: 24px;
}

.about-boundary-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid var(--color-border);
}

.about-boundary-yes {
  border-left: 4px solid var(--color-rock-teal);
}

.about-boundary-no {
  border-left: 4px solid var(--color-slate);
}

.about-contact-grid {
  display: grid;
  gap: 20px;
}

.about-contact-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid var(--color-border);
}

.about-contact-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: 10px;
}

.about-contact-value {
  font-size: 16px;
  color: var(--color-text-primary);
}

@media (min-width: 768px) {
  .about-split {
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
  }

  .about-team-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
  }

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

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

@media (min-width: 1024px) {
  .about-contact-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Floating contact widget v2 */
.floating-sidebar {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: none;
  flex-direction: column;
  gap: 2px;
  background-color: var(--color-white);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: 4px 0 20px rgba(5, 26, 36, 0.1);
  overflow: hidden;
}

.floating-sidebar-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background-color: var(--color-white);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.floating-sidebar-item:hover {
  transform: translateX(4px);
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.08);
}

.floating-sidebar-item.wechat {
  color: #07C160;
}

.floating-sidebar-item.wechat:hover {
  background-color: #E8F5E9;
}

.floating-sidebar-item.whatsapp {
  color: #25D366;
}

.floating-sidebar-item.whatsapp:hover {
  background-color: #E8F8EE;
}

.floating-sidebar-item.email {
  color: #2563EB;
}

.floating-sidebar-item.email:hover {
  background-color: #EFF6FF;
}

.floating-sidebar-item.form {
  color: var(--color-slate);
}

.floating-sidebar-item.form:hover {
  background-color: var(--color-bg);
}

.floating-sidebar-divider {
  width: 28px;
  height: 1px;
  background-color: var(--color-border);
  margin: 0 auto;
}

.floating-contact {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 1000;
  font-family: var(--font-sans);
}

.floating-contact-toggle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--color-white);
  border: 3px solid var(--color-white);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.35);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.floating-contact-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.45);
}

.floating-contact-toggle.active {
  transform: rotate(45deg);
  background: #051A24;
  box-shadow: 0 6px 24px rgba(5, 26, 36, 0.35);
}

.floating-contact-card {
  position: absolute;
  right: 0;
  bottom: 80px;
  width: 340px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fffb 100%);
  border: 2px solid #25D366;
  border-radius: var(--radius-xl);
  box-shadow: 0 12px 48px rgba(37, 211, 102, 0.22);
  padding: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.95);
  transform-origin: bottom right;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  overflow: hidden;
}

.floating-contact-card.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.floating-contact-banner {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  padding: 20px 24px 28px;
  color: var(--color-white);
  text-align: center;
}

.floating-contact-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, 0.4);
  margin: 0 auto 12px;
  background-color: var(--color-white);
  display: block;
}

.floating-contact-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.floating-contact-role {
  font-size: 14px;
  opacity: 0.95;
  font-weight: 500;
}

.floating-contact-body {
  padding: 20px 24px 24px;
}

.floating-contact-headline {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  text-align: center;
}

.floating-contact-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  text-align: center;
}

.floating-contact-services {
  list-style: none;
  padding: 0;
  margin: 0 0 18px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 12px;
}

.floating-contact-services li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.floating-contact-services svg {
  flex-shrink: 0;
  color: #25D366;
}

.floating-contact-actions {
  display: grid;
  gap: 10px;
}

.floating-contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.floating-contact-btn:hover {
  transform: translateY(-2px);
}

.floating-contact-btn-wechat {
  background-color: #07C160;
  color: #fff;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.3);
}

.floating-contact-btn-wechat:hover {
  background-color: #06AD56;
}

.floating-contact-btn-whatsapp {
  background-color: #25D366;
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
}

.floating-contact-btn-whatsapp:hover {
  background-color: #1DBF5C;
}

.floating-contact-btn-form {
  background-color: var(--color-white);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.floating-contact-btn-form:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.sf-form-status {
  padding: 16px;
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.6;
}

.sf-form-status-success {
  background-color: #E8F5E9;
  color: #1B5E20;
  border: 1px solid #A5D6A7;
}

.sf-form-status-error {
  background-color: #FFEBEE;
  color: #B71C1C;
  border: 1px solid #EF9A9A;
}

/* WeChat QR modal */
.wechat-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(5, 26, 36, 0.6);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}

.wechat-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.wechat-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background: linear-gradient(180deg, #EEF7FF 0%, #ffffff 100%);
  border-radius: var(--radius-xl);
  padding: 32px 28px 24px;
  width: 90%;
  max-width: 380px;
  z-index: 1101;
  box-shadow: 0 24px 70px rgba(5, 26, 36, 0.25);
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

.wechat-modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.wechat-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background-color: rgba(255, 255, 255, 0.8);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wechat-modal-close:hover {
  background-color: var(--color-border);
  color: var(--color-text-primary);
}

.wechat-modal-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 12px;
  border: 3px solid var(--color-white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.wechat-modal-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.wechat-modal-role {
  font-size: 14px;
  color: #2563EB;
  font-weight: 500;
  margin-bottom: 20px;
}

.wechat-modal-qr {
  width: 220px;
  height: 220px;
  margin: 0 auto 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-white);
  padding: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.wechat-modal-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.wechat-modal-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
  font-size: 13px;
  margin-bottom: 10px;
}

.wechat-modal-divider::before,
.wechat-modal-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.wechat-modal-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.wechat-modal-highlight {
  font-size: 15px;
  font-weight: 600;
  color: #2563EB;
  margin-bottom: 20px;
}

.wechat-modal-phone {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #051A24;
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  color: var(--color-white);
}

.wechat-modal-phone-info {
  text-align: left;
}

.wechat-modal-phone-label {
  font-size: 12px;
  opacity: 0.8;
  margin-bottom: 2px;
}

.wechat-modal-phone-number {
  font-size: 18px;
  font-weight: 700;
  font-family: var(--font-mono);
}

.wechat-modal-call-btn {
  background-color: #2563EB;
  color: var(--color-white);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.wechat-modal-call-btn:hover {
  background-color: #1D4ED8;
}

@media (min-width: 1024px) {
  .floating-sidebar {
    display: flex;
  }
}

@media (max-width: 1023px) {
  .floating-contact {
    right: 16px;
    bottom: 88px;
  }

  .floating-contact-card {
    width: calc(100vw - 32px);
    max-width: 360px;
    right: 0;
    bottom: 80px;
  }
}

@media (max-width: 480px) {
  .floating-contact-card {
    width: calc(100vw - 32px);
    right: 0;
    bottom: 80px;
  }

  .floating-contact-body {
    padding: 18px 20px 20px;
  }

  .wechat-modal {
    padding: 28px 20px 20px;
  }
}

/* =====================================================
   补充样式：行业页/列表页增强组件
   ===================================================== */

/* 特色彩色卡片 */
.card--feature {
  position: relative;
  overflow: hidden;
  border: none;
  padding: 32px;
}

.card--feature .card-icon {
  margin-bottom: 20px;
}

.card--feature .card-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.card--feature .card-text {
  color: var(--color-text);
  margin-bottom: 20px;
}

.card--feature.surface-teal {
  background-color: var(--color-rock-teal-light, #E6F2F2);
  color: var(--color-rock-teal, #0E5E5E);
}

.card--feature.surface-steel {
  background-color: var(--color-steel-blue-light, #EAF0F3);
  color: var(--color-steel-blue, #3D5A6C);
}

.card--feature.surface-amber {
  background-color: var(--color-amber-light, #FDF2E6);
  color: var(--color-amber, #B45309);
}

.card--feature.surface-slate {
  background-color: var(--color-light-bg, #F5F7F8);
  color: var(--color-text);
}

.card--feature .card-arrow {
  color: currentColor;
  opacity: 0.85;
}

.card--feature:hover .card-arrow {
  opacity: 1;
}

.card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  background-color: rgba(255, 255, 255, 0.7);
  color: var(--color-muted);
  border-radius: var(--radius-pill);
}

/* 等宽编号徽章 */
.mono-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-family: var(--font-mono, 'Roboto Mono', monospace);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 50%;
  background-color: var(--color-brand);
  color: var(--color-white);
}

/* 分割陈述布局 */
.split-statement {
  display: grid;
  gap: 32px;
  align-items: start;
}

@media (min-width: 768px) {
  .split-statement {
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    align-items: center;
  }
}

.split-left .section-title {
  margin-bottom: 0;
}

/* 交叉链接卡片 */
.cross-links {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .cross-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cross-link-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 28px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.cross-link-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-rock-teal);
  text-decoration: none;
}

.cross-link-card h3 {
  font-size: 20px;
  margin: 0;
  color: var(--color-brand);
}

.cross-link-card p {
  color: var(--color-muted);
  margin: 0;
  flex: 1;
}

/* 数据表格 */
.data-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
  font-size: 15px;
}

.data-table thead {
  background-color: var(--color-brand);
  color: var(--color-white);
}

.data-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.data-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: top;
}

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

.data-table tbody tr:nth-child(even) {
  background-color: var(--color-light-bg, #F5F7F8);
}

@media (max-width: 768px) {
  .data-table {
    font-size: 14px;
  }
  .data-table th,
  .data-table td {
    padding: 12px 14px;
  }
}

/* 警告卡片 */
.card--warning {
  border-left: 4px solid var(--color-amber, #B45309);
}

.card--warning .card-icon-sm {
  color: var(--color-amber, #B45309);
}

/* 匹配声明免责声明 */
.matching-disclaimer {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 24px;
  background-color: var(--color-light-bg, #F5F7F8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.matching-disclaimer p {
  margin: 0;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
}

/* 紧凑卡片 */
.card--compact {
  padding: 20px;
}

.card--compact .card-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.card--compact .card-text {
  font-size: 14px;
  margin: 0;
}

/* 相关资源框 */
.related-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.related-box p {
  margin: 0 0 12px;
  color: var(--color-text);
}

.related-box p:last-child {
  margin-bottom: 0;
}

.related-box a {
  color: var(--color-rock-teal, #0E5E5E);
  font-weight: 500;
}

/* 辅助工具类 */
.max-w-3xl {
  max-width: 768px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero 数据徽章 */
.hero-badges {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 28px;
  flex-wrap: wrap;
  color: var(--color-muted);
  font-size: 14px;
}


/* FAQ 模块 */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-card);
}

.faq-item:last-child {
  margin-bottom: 0;
}

.faq-question {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0 0 12px;
  line-height: 1.4;
}

.faq-answer {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

@media (max-width: 640px) {
  .faq-item {
    padding: 20px;
  }

  .faq-question {
    font-size: 16px;
  }

  .faq-answer {
    font-size: 14px;
  }
}