/* ============================================================
   253ip 站群服务器 — 共享设计系统
   设计语言参照 workbuddy.cn：近黑主色 + 青绿强调、胶囊按钮、
   大字号标题层级、浅灰分区分隔、深色页脚、0.2s 过渡。

   目录（大分区，按文件顺序；子区块用「---------- X ----------」横幅，可 grep 定位）：
   1. 基础设计系统：令牌 / 重置 / 布局 / 按钮 / 导航 / Hero / 信任条 /
      卡片 / 价格卡 / 数据表 / 步骤 / FAQ / CTA / 页脚 / 产品详情 /
      表单 / 404 / 响应式
   2. 增强（2026-11 美化轮）：国旗、世界地图、表格与卡片精修、
      帮你选、信任背书、规格图标
   3. UICraft 精修轮：间距标尺、文字对比度、价格卡差异、表格窄屏、
      交互状态、活动页视觉体系
   4. 活动页质感精修（promo 专属，作用域 .promo-page）
   5. 资讯模块（列表 / 详情）、法务页、客户案例空态
   6. 2026-11-07 UI 布局精修：层级 / 留白节奏 / 卡片与表格可读性 / 交互状态

   维护约束：单文件直出部署，无构建链，不做物理拆分（拆分会使 CSS
   请求数从 2 增至 N，与 docs/perf.md 的请求基线冲突）；gzip 传输约 23KB。
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  /* 颜色 */
  --c-dark: #1a1a1a;
  --c-dark-2: #2b2f2e;
  --c-accent: #28b894;
  --c-accent-dark: #00714d;
  --c-teal: #1b8b8b;
  --c-accent-soft: rgba(40, 184, 148, 0.1);
  --c-text: #1a1a1a;
  --c-text-2: #4b5560;
  --c-text-3: #616b74;
  --c-bg: #ffffff;
  --c-bg-gray: #f5f7f7;
  --c-bg-gray-2: #eef1f1;
  --c-border: #e4e9e9;
  --c-border-dark: rgba(255, 255, 255, 0.12);
  --c-danger: #d9534f;
  /* 文字类危险色：与白底对比度 5.61:1，避免 #d9534f 仅 3.96:1 不达标 */
  --c-danger-text: #b93b37;
  --c-footer: #141816;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --fs-hero: 68px;
  --fs-h1: 44px;
  --fs-h2: 40px;
  --fs-h3: 28px;
  --fs-h4: 20px;
  --fs-body: 16px;
  --fs-small: 14px;

  /* 尺寸 */
  --nav-h: 64px;
  --container: 1200px;
  --container-wide: 1440px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* 间距（等价值令牌化：替换前后计算值一致） */
  --space-8: 8px;
  --space-16: 16px;
  --space-24: 24px;
  --space-32: 32px;
  --space-40: 40px;
  --space-48: 48px;
  --space-56: 56px;
  --space-64: 64px;
  --space-72: 72px;
  --space-96: 96px;

  /* 阴影（workbuddy 风格：近乎无阴影，仅悬停浮起） */
  --shadow-card: 0 1px 2px rgba(26, 26, 26, 0.04);
  --shadow-hover: 0 12px 32px rgba(26, 26, 26, 0.1);
  --shadow-nav: 0 1px 0 rgba(26, 26, 26, 0.06);

  /* 动效 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.2s;
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, p, ul, ol, dl, dd, figure {
  margin: 0;
}
ul, ol {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
img, svg {
  display: block;
  max-width: 100%;
}
button, input, select, textarea {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}
strong {
  font-weight: 600;
}

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide {
  max-width: var(--container-wide);
}
.section {
  padding: var(--space-96) 0;
}
.section-gray {
  background: var(--c-bg-gray);
}
.section-tight {
  padding: var(--space-64) 0;
}
.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head.left {
  margin-left: 0;
  text-align: left;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-accent-dark);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}
.section-head:not(.left) .eyebrow::after {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}
.section-title {
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.section-desc {
  margin-top: 16px;
  font-size: 17px;
  color: var(--c-text-2);
}
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.split-media { align-items: center; gap: var(--space-48); }
.text-accent { color: var(--c-accent); }
.mt-8 { margin-top: var(--space-8); }
.mt-16 { margin-top: var(--space-16); }
.mt-24 { margin-top: var(--space-24); }
.mt-40 { margin-top: var(--space-40); }
.mt-64 { margin-top: var(--space-64); }
.mb-24 { margin-bottom: var(--space-24); }
.section-title.section-title-sm { font-size: var(--fs-h3); }
.center { text-align: center; }

/* ---------- 按钮（胶囊，workbuddy 风格） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.btn svg {
  width: 16px;
  height: 16px;
}
.btn-primary {
  background: var(--c-accent);
  color: #0b201a; /* 亮绿底 + 深色字，白底对比约 6.3:1 */
}
.btn-primary:hover {
  background: var(--c-accent-dark);
  color: #fff; /* 深绿底 + 白字，约 6.1:1 */
  transform: translateY(-1px);
}
.btn-dark {
  background: var(--c-dark);
  color: #fff;
}
.btn-dark:hover {
  background: #000;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  border-color: var(--c-dark);
  color: var(--c-dark);
}
.btn-outline:hover {
  background: var(--c-dark);
  color: #fff;
}
.btn-ghost-light {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}
.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}
.btn-block {
  width: 100%;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-nav);
}
.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-dark);
}
.brand svg {
  width: 30px;
  height: 30px;
}
.brand small {
  font-size: 11px;
  font-weight: 500;
  color: var(--c-text-3);
  letter-spacing: 0.08em;
  margin-left: -6px;
  align-self: flex-end;
  padding-bottom: 3px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--c-text-2);
  border-radius: var(--radius-sm);
}
.nav-link:hover,
.nav-link.active {
  color: var(--c-dark);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-accent);
}
.nav-link .caret {
  width: 12px;
  height: 12px;
  transition: transform var(--dur) var(--ease);
}
.nav-item {
  position: relative;
}
.nav-item:hover .caret,
.nav-item.open .caret {
  transform: rotate(180deg);
}
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 460px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(26, 26, 26, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: all var(--dur) var(--ease);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}
.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
/* 键盘可达：焦点进入下拉区域时同样展开，Tab 可顺序遍历子项 */
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.nav-item:focus-within .caret {
  transform: rotate(180deg);
}
/* Esc 收起：焦点已回到触发项时不再因 :focus-within 反复弹开 */
.nav-item.esc-closed .nav-dropdown {
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 8px);
}
.nav-drop-link:focus-visible {
  background: var(--c-bg-gray);
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}
.nav-drop-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  transition: background var(--dur) var(--ease);
}
.nav-drop-link:hover {
  background: var(--c-bg-gray);
}
.nav-drop-ico {
  flex: none;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-size: 13px;
  font-weight: 700;
}
.nav-drop-link strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}
.nav-drop-link span {
  display: block;
  font-size: 12px;
  color: var(--c-text-3);
  line-height: 1.4;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius-sm);
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}
.nav-toggle .ico-close { display: none; }
body.nav-open .nav-toggle .ico-open { display: none; }
body.nav-open .nav-toggle .ico-close { display: block; }

/* 跳到主要内容：仅键盘聚焦时出现 */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 12px 18px;
  background: var(--c-dark);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}
/* 屏幕阅读器可见、视觉隐藏（给表格 caption 用） */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 移动端导航面板 */
.nav-panel {
  display: none;
}
body.nav-open {
  overflow: hidden;
}

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 88px;
  overflow: hidden;
  background:
    radial-gradient(640px 320px at 85% 12%, rgba(40, 184, 148, 0.12), transparent 70%),
    radial-gradient(520px 280px at 8% 78%, rgba(27, 139, 139, 0.08), transparent 70%),
    var(--c-bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-accent-dark);
  background: var(--c-accent-soft);
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.hero-title {
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.hero-title .hl {
  color: var(--c-accent);
}
.hero-sub {
  margin-top: 24px;
  max-width: 520px;
  font-size: 18px;
  color: var(--c-text-2);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}
.hero-stat strong {
  display: block;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero-stat strong em {
  font-style: normal;
  color: var(--c-accent);
}
.hero-stat span {
  font-size: 13px;
  color: var(--c-text-3);
}
.hero-visual {
  position: relative;
}
.hero-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, #20241f 0%, #16211d 100%);
  padding: 28px;
  color: #fff;
  box-shadow: 0 32px 80px rgba(20, 30, 26, 0.28);
}
.hero-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}
.hero-panel-head b {
  color: #fff;
  font-size: 14px;
}
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--c-accent);
}
.status-dot::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 2s infinite;
}
.hero-map {
  margin: 20px 0;
}
.hero-map svg {
  width: 100%;
  height: auto;
}
.hero-panel-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.metric {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.metric b {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-accent);
}
.metric span {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
}
.hero-chip {
  position: absolute;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 16px 40px rgba(26, 26, 26, 0.14);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: floaty 5s ease-in-out infinite;
}
.hero-chip small {
  display: block;
  font-weight: 400;
  color: var(--c-text-3);
}
.hero-chip .ico {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.chip-a {
  top: -22px;
  right: -14px;
}
.chip-b {
  bottom: -20px;
  left: -18px;
  animation-delay: -2.5s;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- LOGO 条 / 信任条 ---------- */
.trust-bar {
  padding: 28px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-text-2);
}
.trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--c-accent);
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(40, 184, 148, 0.4);
}
.feature-card {
  padding: 32px 28px;
}
.feature-ico {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  margin-bottom: 20px;
}
.feature-ico svg {
  width: 24px;
  height: 24px;
}
.feature-card h3 {
  font-size: var(--fs-h4);
  font-weight: 600;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--c-text-2);
}

/* 地区 / 产品入口卡 */
.region-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  overflow: hidden;
}
.region-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.region-flag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 600;
}
.region-flag .flag {
  width: 34px;
  height: 24px;
  border-radius: 5px;
  overflow: hidden;
  flex: none;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}
.region-flag .flag svg {
  width: 100%;
  height: 100%;
}
.region-card .desc {
  font-size: 14px;
  color: var(--c-text-2);
  flex: 1;
}
.region-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 20px;
}
.region-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-accent-dark);
}
.region-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--dur) var(--ease);
}
.region-card:hover .region-link svg {
  transform: translateX(4px);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  background: var(--c-bg-gray-2);
  color: var(--c-text-2);
}
.tag-green {
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.tag-dark {
  background: var(--c-dark);
  color: #fff;
}

/* ---------- 套餐 / 价格卡 ---------- */
.billing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  margin: 0 auto 48px;
  background: var(--c-bg-gray-2);
  border-radius: var(--radius-pill);
}
.billing-toggle-wrap {
  text-align: center;
}
.bill-btn {
  padding: 9px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text-2);
  border-radius: var(--radius-pill);
  transition: all var(--dur) var(--ease);
}
.bill-btn.active {
  background: #fff;
  color: var(--c-dark);
  box-shadow: 0 2px 8px rgba(26, 26, 26, 0.08);
}
.bill-btn .save {
  margin-left: 6px;
  font-size: 11px;
  color: var(--c-accent-dark);
  font-weight: 600;
}
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.price-card.popular {
  border: 2px solid var(--c-accent);
  box-shadow: 0 16px 48px rgba(40, 184, 148, 0.16);
}
.price-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: var(--c-accent-strong);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.price-name {
  font-size: 18px;
  font-weight: 600;
}
.price-sub {
  font-size: 13px;
  color: var(--c-text-3);
  margin-top: 4px;
}
.price-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 22px 0 4px;
}
.price-amount .cur {
  font-size: 20px;
  font-weight: 600;
}
.price-amount .num {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.price-amount .per {
  font-size: 14px;
  color: var(--c-text-3);
}
.price-note {
  font-size: 12px;
  color: var(--c-text-3);
  min-height: 18px;
}
.price-list {
  margin: 24px 0 28px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
  display: grid;
  gap: 12px;
  flex: 1;
}
.price-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--c-text-2);
  line-height: 1.5;
}
.price-list li svg {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: var(--c-accent);
}
.price-list li b {
  color: var(--c-dark);
  font-weight: 600;
}

/* ---------- 数据表 ---------- */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}
.table-scroll::-webkit-scrollbar {
  height: 8px;
}
.table-scroll::-webkit-scrollbar-thumb {
  background: #cfd6d6;
  border-radius: 8px;
}
.table-scroll caption {
  caption-side: top;
  padding: 12px 16px 0;
  text-align: left;
  font-size: 13px;
  color: var(--c-text-3);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 640px;
}
th, td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  white-space: nowrap;
}
thead th {
  background: var(--c-bg-gray);
  font-weight: 600;
  color: var(--c-dark);
  font-size: 13px;
}
tbody tr:last-child td {
  border-bottom: 0;
}
tbody tr:hover {
  background: #fafcfc;
}
td.hl, th.hl {
  background: var(--c-accent-soft);
}
.td-check {
  color: var(--c-accent-dark);
  font-weight: 600;
}
.td-muted {
  color: var(--c-text-3);
}
.table-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--c-text-3);
}

/* ---------- 规格定义列表 ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.spec-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}
.spec-item .ico {
  flex: none;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.spec-item .ico svg {
  width: 20px;
  height: 20px;
}
.spec-item dt {
  font-size: 12px;
  color: var(--c-text-3);
}
.spec-item dd {
  font-size: 15px;
  font-weight: 600;
}

/* ---------- 步骤 / 流程 ---------- */
.steps {
  counter-reset: step;
}
.step-card {
  position: relative;
  padding: 32px 28px 28px;
}
.step-num {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--c-dark);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}
.step-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 14px;
  color: var(--c-text-2);
}

/* ---------- 场景卡 ---------- */
.usecase-card {
  padding: 28px;
}
.usecase-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.usecase-card h3 svg {
  width: 20px;
  height: 20px;
  color: var(--c-accent);
}
.usecase-card p {
  font-size: 14px;
  color: var(--c-text-2);
}

/* ---------- FAQ 手风琴 ---------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: #fff;
  transition: border-color var(--dur) var(--ease);
}
.faq-item + .faq-item {
  margin-top: 12px;
}
.faq-item.open {
  border-color: rgba(40, 184, 148, 0.5);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-dark);
}
.faq-q .arrow {
  flex: none;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--c-bg-gray-2);
  transition: all var(--dur) var(--ease);
}
.faq-q .arrow svg {
  width: 14px;
  height: 14px;
  transition: transform var(--dur) var(--ease);
}
.faq-item.open .arrow {
  background: var(--c-accent-strong);
  color: #fff;
}
.faq-item.open .arrow svg {
  transform: rotate(180deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
}
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--c-text-2);
  border-top: 1px dashed var(--c-border);
  padding-top: 16px;
  margin: 0 24px 22px;
  padding-left: 0;
  padding-right: 0;
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #17211d 0%, #1c2b25 55%, #14332a 100%);
  color: #fff;
  padding: 72px 64px;
  text-align: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(420px 200px at 88% 10%, rgba(40, 184, 148, 0.25), transparent 70%),
    radial-gradient(360px 200px at 8% 95%, rgba(40, 184, 148, 0.15), transparent 70%);
  pointer-events: none;
}
.cta-band > * {
  position: relative;
}
.cta-band h2 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.cta-band p {
  margin: 16px auto 32px;
  max-width: 560px;
  color: rgba(255, 255, 255, 0.72);
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--c-footer);
  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 48px 32px;
  padding: 72px 0 48px;
}
.footer-brand .brand {
  color: #fff;
}
.footer-brand p {
  margin-top: 16px;
  max-width: 300px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
}
.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 7px 14px;
  font-size: 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--c-accent);
}
.footer-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 2s infinite;
}
.footer-col h2,
.footer-col h3,
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-col ul {
  display: grid;
  gap: 11px;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}
.footer-col a:hover {
  color: var(--c-accent);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a:hover {
  color: var(--c-accent);
}
.footer-bottom .links {
  display: flex;
  gap: 20px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-text-3);
  padding: 20px 0 0;
}
.breadcrumb a:hover {
  color: var(--c-accent-dark);
}
.breadcrumb .sep {
  color: var(--c-text-3);
}
.breadcrumb .cur {
  color: var(--c-text-2);
}

/* ---------- 页面头（子页 hero） ---------- */
.page-hero {
  position: relative;
  padding: 56px 0 64px;
  background:
    radial-gradient(560px 260px at 88% 0%, rgba(40, 184, 148, 0.1), transparent 70%),
    var(--c-bg-gray);
  overflow: hidden;
}
.page-hero h1 {
  font-size: var(--fs-h1);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.page-hero .lead {
  margin-top: 16px;
  max-width: 640px;
  font-size: 17px;
  color: var(--c-text-2);
}
.page-hero .hero-actions {
  margin-top: 28px;
}
.page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 产品详情：IP 可视化 ---------- */
.ip-visual {
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, #20241f, #16211d);
  padding: 28px;
  color: #fff;
}
.ip-visual h2,
.ip-visual h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}
.ip-visual .sub {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 18px;
}
.ip-rows {
  display: grid;
  gap: 10px;
}
.ip-row {
  display: grid;
  grid-template-columns: 64px 1fr 74px;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}
.ip-row .lbl {
  color: rgba(255, 255, 255, 0.65);
  font-family: "SFMono-Regular", Consolas, monospace;
}
.ip-row .bar {
  height: 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}
.ip-row .bar i {
  display: block;
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--c-teal), var(--c-accent));
}
.ip-row .val {
  text-align: right;
  color: var(--c-accent);
  font-weight: 600;
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ---------- 表单 ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-hint {
  margin-top: 16px;
  font-size: 13px;
  color: var(--c-text-3);
}
.form-hint .req {
  color: var(--c-danger-text);
}
.form-grid ~ .form-submit {
  margin-top: 16px;
}
.field {
  display: grid;
  gap: 8px;
}
.field.full {
  grid-column: 1 / -1;
}
.field label {
  font-size: 14px;
  font-weight: 500;
}
.field label .req {
  color: var(--c-danger-text);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: #fff;
  transition: border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.field textarea {
  min-height: 120px;
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(40, 184, 148, 0.15);
}
.field.invalid input,
.field.invalid select,
.field.invalid textarea {
  border-color: var(--c-danger);
}
.field .err {
  display: none;
  font-size: 12px;
  color: var(--c-danger-text);
}
.field.invalid .err {
  display: block;
}
.form-success {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-size: 14px;
  font-weight: 500;
}
.form-success.show {
  display: block;
}

/* ---------- 联系信息卡 ---------- */
.contact-card {
  padding: 28px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-card .ico {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.contact-card .ico svg {
  width: 22px;
  height: 22px;
}
.contact-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-card p {
  font-size: 14px;
  color: var(--c-text-2);
}

/* ---------- 404 ---------- */
.nf-wrap {
  min-height: calc(100vh - var(--nav-h));
  display: grid;
  place-items: center;
  text-align: center;
  padding: 80px 24px;
  background:
    radial-gradient(480px 240px at 50% 0%, rgba(40, 184, 148, 0.1), transparent 70%),
    var(--c-bg);
}
.nf-code {
  font-size: 120px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(120deg, var(--c-dark), var(--c-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nf-wrap h1 {
  font-size: 28px;
  margin-top: 16px;
}
.nf-wrap p {
  margin: 12px 0 32px;
  color: var(--c-text-2);
}

/* ---------- 滚动进场动画 ---------- */
/* 默认可见：只有 JS 明确开启 reveal-on 后才隐藏，脚本失效时内容不会消失 */
.reveal {
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal-on .reveal {
  opacity: 0;
  transform: translateY(24px);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-chip, .status-dot::before, .hero-badge .dot, .footer-status::before {
    animation: none;
  }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  :root {
    --fs-hero: 56px;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 992px) {
  :root {
    --fs-hero: 44px;
    --fs-h1: 36px;
    --fs-h2: 32px;
    --fs-h3: 24px;
  }
  .section { padding: 72px 0; }
  .hero { padding: 64px 0; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-visual {
    max-width: 560px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cta-band { padding: 56px 32px; }
  .cta-band h2 { font-size: 28px; }
  /* 导航折叠 */
  .nav-menu, .nav-actions .btn { display: none; }
  .nav-toggle { display: grid; margin-left: auto; }
  .nav-panel {
    display: block;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: #fff;
    padding: 16px 24px 40px;
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--dur) var(--ease);
  }
  body.nav-open .nav-panel {
    transform: none;
    opacity: 1;
    visibility: visible;
  }
  .nav-panel .m-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 16px 4px;
    font-size: 17px;
    font-weight: 500;
    border-bottom: 1px solid var(--c-border);
  }
  .nav-panel .m-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--dur) var(--ease);
  }
  .nav-panel .m-group.open .m-link svg {
    transform: rotate(180deg);
  }
  .m-sub {
    display: none;
    padding: 8px 0 12px;
  }
  .m-group.open .m-sub {
    display: block;
  }
  .m-sub a {
    display: block;
    padding: 10px 12px;
    font-size: 15px;
    color: var(--c-text-2);
    border-radius: var(--radius-sm);
  }
  .m-sub a:hover {
    background: var(--c-bg-gray);
    color: var(--c-dark);
  }
  .nav-panel .m-cta {
    display: grid;
    gap: 12px;
    margin-top: 24px;
  }
}
@media (max-width: 768px) {
  :root {
    --fs-hero: 34px;
    --fs-h1: 30px;
    --fs-h2: 26px;
  }
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .hero { padding: 48px 0 56px; }
  .hero-sub { font-size: 16px; }
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  .hero-stat strong { font-size: 24px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero-chip { display: none; }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
    padding: 48px 0 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-band { padding: 44px 24px; }
  .cta-band h2 { font-size: 24px; }
  .page-hero { padding: 40px 0 48px; }
  th, td { padding: 12px 14px; }
  .ip-row { grid-template-columns: 56px 1fr 64px; }
  .nf-code { font-size: 88px; }
}

/* ============================================================
   增强（2026-11 美化轮）：国旗组件、世界地图、表格与卡片精修、
   帮你选、信任背书、规格图标。全部复用既有设计令牌。
   ============================================================ */

/* ---------- 国旗组件（JS 注入 SVG） ---------- */
.flag {
  display: inline-flex;
  flex: none;
  width: 22px;
  height: 15.5px;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
  line-height: 0;
}
.flag svg { width: 100%; height: 100%; }
.flag-xs { width: 16px; height: 11.3px; border-radius: 2px; }
.flag-sm { width: 19px; height: 13.4px; border-radius: 2.5px; }
.flag-hero {
  width: 32px;
  height: 22.6px;
  border-radius: 4px;
  margin-right: 14px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(26, 26, 26, 0.12);
}
h1.has-flag { display: flex; align-items: center; }
a.has-flag { display: inline-flex; align-items: center; gap: 8px; }
td.has-flag { white-space: nowrap; }
td.has-flag .flag { margin-right: 7px; vertical-align: -2px; }
/* 导航下拉与移动面板里的链接换行对齐 */
.nav-dropdown a.has-flag,
.m-sub a.has-flag { display: flex; align-items: center; gap: 10px; }
.m-sub a.has-flag .flag-xs { margin-left: 2px; }

/* ---------- 表格精修：斑马纹、悬停、表头层级 ---------- */
table th {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-text-2);
  text-transform: none;
}
.table-scroll tbody tr:nth-child(even) td,
table.zebra tbody tr:nth-child(even) td {
  background: var(--c-bg-gray);
}
.table-scroll tbody tr,
table tbody tr {
  transition: background var(--dur) var(--ease);
}
.table-scroll tbody tr:hover td,
table tbody tr:hover td {
  background: var(--c-accent-soft);
}
.table-scroll td:first-child,
table td:first-child { font-weight: 500; }
/* 数字列右对齐更专业（延迟/流量列保持居左默认，仅对纯数字单元格微调字距） */
td { font-variant-numeric: tabular-nums; }

/* ---------- 卡片与悬停层级 ---------- */
.card, .region-card, .feature-card, .price-card, .usecase-card, .contact-card {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.card:hover, .region-card:hover, .feature-card:hover,
.price-card:hover, .usecase-card:hover, .contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(40, 184, 148, 0.35);
}
/* 价格卡悬停不位移过大，避免布局跳动 */
.price-card:hover { transform: translateY(-2px); }

/* ---------- 按钮与 CTA 权重 ---------- */
.btn {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
.faq-q:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.btn-primary {
  box-shadow: 0 4px 14px rgba(0, 113, 77, 0.22);
}
.btn-primary:hover {
  box-shadow: 0 8px 22px rgba(0, 113, 77, 0.3);
  transform: translateY(-1px);
}
.cta-band .btn-primary,
.cta-band .btn-light {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

/* ---------- 标题层级 ---------- */
.hero h1, .page-hero h1, .section-title {
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.section-desc { text-wrap: pretty; }

/* ---------- 规格图标（JS 注入 .spec-ico） ---------- */
.spec-grid .has-ico {
  display: grid;
  grid-template-columns: 40px 1fr;
  column-gap: 12px;
  align-items: start;
}
.spec-ico {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.spec-ico svg { width: 21px; height: 21px; }
.spec-grid .has-ico dt { padding-top: 2px; }

/* ---------- 世界地图模块 ---------- */
.map-wrap {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #fbfdfd 0%, var(--c-bg-gray) 100%);
  padding: 28px 28px 20px;
  overflow: hidden;
}
.map-stage svg { width: 100%; height: auto; }
.wm-land circle { fill: #cfdad8; }
.wm-arcs path {
  fill: none;
  stroke: var(--c-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: 1 6;
  opacity: 0.75;
  animation: wm-flow 2.6s linear infinite;
}
@keyframes wm-flow {
  to { stroke-dashoffset: -28; }
}
.wm-node .wm-dot { fill: var(--c-accent-dark); }
.wm-node .wm-ping {
  fill: none;
  stroke: var(--c-accent);
  stroke-width: 1.5;
  opacity: 0.8;
  transform-box: fill-box;
  transform-origin: center;
  animation: wm-ping 2.4s ease-out infinite;
}
.wm-node.hub .wm-dot { fill: var(--c-dark); }
.wm-node.hub .wm-ping { stroke: var(--c-dark); }
@keyframes wm-ping {
  0% { transform: scale(0.5); opacity: 0.9; }
  70% { transform: scale(2.6); opacity: 0; }
  100% { transform: scale(2.6); opacity: 0; }
}
.map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.map-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  background: #fff;
  font-size: 13px;
  color: var(--c-text-2);
}
.map-chip strong { font-weight: 600; color: var(--c-text); }
.map-chip em { font-style: normal; color: var(--c-accent-dark); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---------- 现货数字条（首屏信任） ---------- */
.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-band .stat-cell {
  background: #fff;
  padding: 22px 24px;
  text-align: center;
}
.stat-cell .num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-dark);
  line-height: 1.2;
}
.stat-cell .num small { font-size: 16px; font-weight: 600; color: var(--c-accent-dark); }
.stat-cell .lbl { font-size: 13px; color: var(--c-text-3); }

/* ---------- 帮你选（按场景选型） ---------- */
.picker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.picker-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.picker-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(40, 184, 148, 0.4);
}
.picker-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  margin-bottom: 4px;
}
.picker-ico svg { width: 22px; height: 22px; }
.picker-card h3 { font-size: 17px; font-weight: 600; }
.picker-card p { flex: 1; font-size: 14px; color: var(--c-text-2); }
.picker-rec {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--c-border);
  font-size: 13.5px;
  color: var(--c-text-3);
}
.picker-rec b { color: var(--c-accent-dark); font-weight: 600; }
.picker-rec .arrow { margin-left: auto; color: var(--c-accent); transition: transform var(--dur) var(--ease); }
.picker-card:hover .picker-rec .arrow { transform: translateX(3px); }

/* ---------- 信任背书条（SLA / 保障） ---------- */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow: hidden;
}
.trust-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 26px 24px;
  border-right: 1px solid var(--c-border);
}
.trust-item .t-ico {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 12px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
}
.trust-item .t-ico svg { width: 21px; height: 21px; }
.trust-item h3 { font-size: 15.5px; font-weight: 600; margin-bottom: 3px; }
.trust-item p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- CTA 快速联系通道 ---------- */
.cta-channels {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}
.cta-channel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-pill);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  transition: all var(--dur) var(--ease);
}
.cta-channel:hover {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.cta-channel svg { width: 15px; height: 15px; }
.cta-band .cta-note { margin-top: 14px; font-size: 13px; color: rgba(255, 255, 255, 0.55); }

/* ---------- 空状态 / 图片占位（SVG 渐变） ---------- */
.ph-media {
  position: relative;
  border-radius: var(--radius-md);
  background:
    radial-gradient(120% 140% at 15% 0%, rgba(40, 184, 148, 0.16) 0%, transparent 55%),
    linear-gradient(135deg, var(--c-bg-gray) 0%, var(--c-bg-gray-2) 100%);
  border: 1px solid var(--c-border);
  overflow: hidden;
}
.ph-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(26, 26, 26, 0.06) 1px, transparent 1px);
  background-size: 14px 14px;
}

/* ---------- 响应式补充 ---------- */
@media (max-width: 992px) {
  .picker-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-band { grid-template-columns: repeat(2, 1fr); }
  .map-wrap { padding: 20px 16px 14px; }
}
@media (max-width: 768px) {
  .picker-grid { grid-template-columns: 1fr; }
  .stat-band .stat-cell { padding: 16px 10px; }
  .stat-cell .num { font-size: 24px; }
  .map-chip { font-size: 12px; padding: 5px 10px; }
  .map-chip em { display: none; }
  /* 窄屏表格：收紧字号与内边距，保持横滚可用 */
  .table-scroll table { font-size: 13.5px; }
  th, td { padding: 10px 12px; }
  /* hero 标题里的国旗略缩 */
  .flag-hero { width: 26px; height: 18.4px; margin-right: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .wm-arcs path, .wm-node .wm-ping { animation: none; }
  .card:hover, .region-card:hover, .feature-card:hover,
  .price-card:hover, .usecase-card:hover, .picker-card:hover { transform: none; }
}

/* ============================================================
   UICraft 精修轮
   1) 间距标尺与节奏  2) 文字对比度与层级  3) 价格卡结构性差异
   4) 表格窄屏可用性  5) 交互状态补全  6) 活动页视觉体系
   ============================================================ */

/* ---------- 1. 间距标尺（统一收口零散数值） ---------- */
:root {
  --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: 96px;
  --dur-fast: 0.15s;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(26, 26, 26, 0.05);
  --shadow-md: 0 6px 18px rgba(26, 26, 26, 0.07);
  --shadow-lg: 0 18px 44px rgba(26, 26, 26, 0.12);
}

/* ---------- 2. 文字对比度（原 --c-text-3 仅 3.2:1，不达 AA） ---------- */
:root {
  --c-text-3: #646d76;
  --c-border: #dde4e4;
  /* 亮绿 #28b894 仅用于装饰/背景；承载白色文字或图标的填充改用同色系深一档（白字 4.91:1） */
  --c-accent-strong: #0e8060;
}
/* 亮绿 #28b894 在白底只有约 2.5:1，只保留给背景/图标；文字改用深绿 */
.text-accent,
.hero-title .hl,
.ip-row .val {
  color: var(--c-accent-dark);
}
/* 主按钮对比度已合并进 .btn-primary 基类（见文件前部） */
.section {
  padding: clamp(56px, 7vw, 96px) 0;
}
.section-tight {
  padding: clamp(40px, 5vw, 64px) 0;
}
.section-desc {
  max-width: 640px;
  line-height: 1.75;
}
/* 节奏：灰色分区的标题左对齐，与白色分区的居中标题形成交替呼吸 */
.section-gray .section-head:not(.left) {
  margin-left: 0;
  text-align: left;
  max-width: 760px;
}
.section-gray .section-head:not(.left) .eyebrow::after {
  display: none;
}
.section-gray .section-head:not(.left) .section-desc {
  margin-left: 0;
}
.table-note {
  color: var(--c-text-3);
}

/* ---------- 3. 精修：价格卡的"最受欢迎"做结构性差异 ---------- */
.price-card.popular {
  background: linear-gradient(160deg, #1d2925 0%, #14201c 62%, #17322a 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 22px 56px rgba(20, 32, 28, 0.26);
  color: #fff;
}
.price-card.popular:hover {
  box-shadow: 0 28px 64px rgba(20, 32, 28, 0.32);
}
.price-card.popular .price-name { color: #fff; }
.price-card.popular .price-sub { color: rgba(255, 255, 255, 0.62); }
.price-card.popular .price-amount .cur,
.price-card.popular .price-amount .per { color: rgba(255, 255, 255, 0.68); }
.price-card.popular .price-amount .num {
  color: #4ee0b4;
  letter-spacing: -0.03em;
}
.price-card.popular .price-note { color: rgba(255, 255, 255, 0.6); }
.price-card.popular .price-list li { color: rgba(255, 255, 255, 0.82); }
.price-card.popular .price-list li svg { color: #4ee0b4; }
.price-card.popular .price-list li b { color: #fff; }
.price-card.popular .btn-primary {
  background: #4ee0b4;
  color: #0f211a;
  box-shadow: 0 8px 20px rgba(78, 224, 180, 0.24);
}
.price-card.popular .btn-primary:hover {
  background: #6cebc6;
  color: #0f211a;
}

/* ---------- 4. 表格：窄屏首列吸附 + 滚动提示 ---------- */
.table-scroll {
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}
.table-scroll table {
  border-collapse: separate;
  border-spacing: 0;
}
@media (max-width: 992px) {
  .table-scroll th:first-child,
  .table-scroll td:first-child {
    position: sticky;
    left: 0;
    z-index: 2;
    background: #fff;
    box-shadow: 1px 0 0 var(--c-border);
  }
  .table-scroll thead th:first-child {
    background: #fff;
    z-index: 3;
  }
  .table-scroll tbody tr:nth-child(even) td:first-child {
    background: var(--c-bg-gray);
  }
  .table-scroll tbody tr:hover td:first-child {
    background: #eaf7f2;
  }
}

/* ---------- 5. 交互状态补全：禁用 / 加载 / 按压 ---------- */
.btn[disabled],
.btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  pointer-events: none;
}
.btn.is-loading {
  opacity: 0.7;
  pointer-events: none;
}
.btn.is-loading::after {
  content: "";
  width: 14px;
  height: 14px;
  margin-left: 8px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  display: inline-block;
  vertical-align: -2px;
  animation: btn-spin 0.7s linear infinite;
}
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}
.tag { letter-spacing: 0.01em; }

/* ---------- 6. 活动页（promo.html）视觉体系 ---------- */
.promo-ribbon {
  display: block;
  background: linear-gradient(90deg, #0f2a22 0%, #17493a 50%, #0f2a22 100%);
  color: #fff;
  font-size: 14px;
}
.promo-ribbon .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding-top: 10px;
  padding-bottom: 10px;
  flex-wrap: wrap;
}
.promo-ribbon .dot-live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ee0b4;
  box-shadow: 0 0 0 4px rgba(78, 224, 180, 0.18);
  flex: none;
}
.promo-ribbon b { color: #4ee0b4; font-weight: 600; }
.promo-ribbon .link {
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  font-weight: 500;
}
.promo-ribbon .link:hover { border-color: #4ee0b4; color: #4ee0b4; }

/* --- 活动首屏 --- */
.promo-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 6vw, 80px);
  background:
    radial-gradient(900px 420px at 82% -10%, rgba(78, 224, 180, 0.24), transparent 62%),
    radial-gradient(620px 360px at 8% 108%, rgba(27, 139, 139, 0.28), transparent 64%),
    linear-gradient(148deg, #0c1a16 0%, #102420 46%, #0b2b23 100%);
  color: #fff;
}
.promo-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(70% 70% at 50% 30%, #000 0%, transparent 100%);
  pointer-events: none;
}
.promo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 56px;
  align-items: center;
}
.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 15px 6px 11px;
  border: 1px solid rgba(78, 224, 180, 0.35);
  border-radius: var(--radius-pill);
  background: rgba(78, 224, 180, 0.1);
  color: #9df3d8;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.promo-badge .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ee0b4;
  animation: promo-pulse 1.8s ease-out infinite;
}
@keyframes promo-pulse {
  0% { box-shadow: 0 0 0 0 rgba(78, 224, 180, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(78, 224, 180, 0); }
  100% { box-shadow: 0 0 0 0 rgba(78, 224, 180, 0); }
}
.promo-hero h1 {
  margin: 20px 0 18px;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: #fff;
}
.promo-hero h1 .hl {
  background: linear-gradient(92deg, #4ee0b4 0%, #7ef0d6 52%, #2fd0a6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.promo-hero .lead {
  max-width: 560px;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.74);
}
.promo-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 28px;
}
.promo-hero-meta .tag {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.82);
}
.promo-hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}
.promo-hero .btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.07);
}
/* 倒计时 */
.promo-countdown {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
}
.cd-cell {
  min-width: 68px;
  padding: 10px 12px 9px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.055);
  text-align: center;
}
.cd-cell b {
  display: block;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.cd-cell span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}
.cd-sep {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.3);
  margin-top: -14px;
}
.promo-ended-note {
  display: none;
  margin-top: 26px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}
body.promo-ended .promo-countdown { display: none; }
body.promo-ended .promo-ended-note { display: block; }
body.promo-ended .promo-hero .btn-primary {
  background: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.7);
  box-shadow: none;
}

/* 首屏右侧：活动报价卡 */
.promo-offer {
  position: relative;
  padding: 30px 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.11) 0%, rgba(255, 255, 255, 0.035) 100%);
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}
.promo-offer-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.16);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}
.promo-offer-foot b { color: #4ee0b4; font-weight: 600; }
.promo-offer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.promo-offer-head h2 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}
.promo-offer-head .save-pill {
  padding: 4px 11px;
  border-radius: var(--radius-pill);
  background: #4ee0b4;
  color: #0f211a;
  font-size: 12px;
  font-weight: 700;
}
.promo-offer-price {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 6px;
}
.promo-offer-price .now {
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: #4ee0b4;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.promo-offer-price .cur { font-size: 18px; font-weight: 600; color: #4ee0b4; align-self: flex-start; margin-top: 6px; }
.promo-offer-price .was {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.42);
  text-decoration: line-through;
}
.promo-offer .sub {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.56);
}
.promo-offer-list {
  display: grid;
  gap: 9px;
  margin: 18px 0 22px;
}
.promo-offer-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.82);
}
.promo-offer-list svg {
  width: 15px;
  height: 15px;
  flex: none;
  margin-top: 3px;
  color: #4ee0b4;
}
.promo-offer .btn-primary {
  width: 100%;
  background: #4ee0b4;
  color: #0f211a;
}
.promo-offer .btn-primary:hover { background: #6cebc6; color: #0f211a; }

/* --- 优惠机制 --- */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.offer-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.offer-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent) 0%, #4ee0b4 100%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.offer-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(40, 184, 148, 0.4);
}
.offer-card:hover::before { opacity: 1; }
.offer-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-accent-dark);
  letter-spacing: 0.08em;
}
.offer-card h3 { font-size: 18px; font-weight: 600; }
.offer-card p { flex: 1; font-size: 14px; color: var(--c-text-2); line-height: 1.7; }
.offer-card .offer-quote {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px dashed var(--c-border);
  font-size: 13px;
  color: var(--c-text-3);
}
.offer-card .offer-quote b { font-size: 22px; font-weight: 700; color: var(--c-accent-dark); letter-spacing: -0.02em; }

/* --- 限时套餐 --- */
.promo-plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.promo-plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 26px 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.promo-plan:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.promo-plan.hot {
  border: 1px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, var(--c-accent) 0%, #4ee0b4 55%, var(--c-teal) 100%) border-box;
  box-shadow: 0 18px 44px rgba(40, 184, 148, 0.16);
}
.promo-plan .plan-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.promo-plan .plan-region {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
}
.promo-plan .ribbon-hot {
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--c-dark);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.promo-plan .plan-ip {
  font-size: 13px;
  color: var(--c-text-3);
  margin-bottom: 12px;
}
.promo-plan .plan-price {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 4px;
}
.promo-plan .plan-price .cur { font-size: 16px; font-weight: 600; color: var(--c-dark); align-self: flex-start; margin-top: 5px; }
.promo-plan .plan-price .now {
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-dark);
  font-variant-numeric: tabular-nums;
}
.promo-plan .plan-price .was { font-size: 14px; color: var(--c-text-3); text-decoration: line-through; }
.promo-plan .plan-gift {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  margin: 10px 0 16px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-size: 12.5px;
  font-weight: 600;
}
.promo-plan ul.plan-list {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
  flex: 1;
}
.promo-plan ul.plan-list li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 13.5px;
  color: var(--c-text-2);
}
.promo-plan ul.plan-list svg { width: 14px; height: 14px; flex: none; margin-top: 3px; color: var(--c-accent-dark); }
.promo-plan .plan-stock {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 12.5px;
  color: var(--c-text-3);
}
.promo-plan .stock-bar {
  flex: 1;
  height: 5px;
  border-radius: 3px;
  background: var(--c-bg-gray-2);
  overflow: hidden;
}
.promo-plan .stock-bar i {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--c-accent) 0%, #4ee0b4 100%);
}
body.promo-ended .promo-plan .btn { opacity: 0.5; pointer-events: none; }
body.promo-ended .promo-plan .ribbon-hot { background: var(--c-text-3); }

/* --- 配置选择器（联动价格） --- */
.cfg-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
}
.cfg-form { padding: 30px 30px 28px; }
.cfg-group + .cfg-group { margin-top: 22px; }
.cfg-label {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-2);
}
.cfg-opts { display: flex; flex-wrap: wrap; gap: 8px; }
.cfg-opt {
  padding: 9px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  background: #fff;
  font-size: 13.5px;
  color: var(--c-text-2);
  transition: all var(--dur-fast) var(--ease);
}
.cfg-opt:hover { border-color: rgba(40, 184, 148, 0.5); color: var(--c-dark); }
.cfg-opt.active {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-weight: 600;
}
.cfg-opt small { font-size: 11.5px; font-weight: 400; color: var(--c-text-3); margin-left: 5px; }
.cfg-opt.active small { color: var(--c-accent-dark); }
.cfg-sum {
  margin-top: 22px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--c-bg-gray);
  font-size: 13px;
  color: var(--c-text-2);
  line-height: 1.8;
}
.cfg-sum b { color: var(--c-dark); }
.cfg-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 30px;
  background: linear-gradient(160deg, #17241f 0%, #10231d 100%);
  color: #fff;
}
.cfg-result .r-label { font-size: 12.5px; color: rgba(255, 255, 255, 0.55); letter-spacing: 0.04em; }
.cfg-result .r-price {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin: 6px 0 2px;
}
.cfg-result .r-price .cur { font-size: 18px; font-weight: 600; color: #4ee0b4; align-self: flex-start; margin-top: 7px; }
.cfg-result .r-price .now {
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #4ee0b4;
  font-variant-numeric: tabular-nums;
}
.cfg-result .r-price .per { font-size: 14px; color: rgba(255, 255, 255, 0.6); margin-bottom: 6px; }
.cfg-result .r-was { font-size: 13px; color: rgba(255, 255, 255, 0.42); text-decoration: line-through; }
.cfg-result .r-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, 0.16);
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.7;
}
.cfg-result .btn { margin-top: 18px; width: 100%; background: #4ee0b4; color: #0f211a; }
.cfg-result .btn:hover { background: #6cebc6; color: #0f211a; }

/* --- 活动规则 --- */
.rules-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 48px;
  align-items: start;
}
.rules-list { display: grid; gap: 18px; counter-reset: rule; }
.rules-list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: start;
  font-size: 14.5px;
  color: var(--c-text-2);
  line-height: 1.75;
}
.rules-list li::before {
  counter-increment: rule;
  content: counter(rule, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-size: 12.5px;
  font-weight: 700;
}
.rules-list li b { color: var(--c-dark); font-weight: 600; }
.rules-aside {
  padding: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: var(--c-bg-gray);
}
.rules-aside h3 { font-size: 14px; font-weight: 600; margin-bottom: 12px; }
.rules-aside .btn { margin-top: 18px; }
.rules-aside ul { display: grid; gap: 10px; font-size: 13px; color: var(--c-text-2); }
.rules-aside li { display: flex; gap: 8px; }
.rules-aside li svg { width: 14px; height: 14px; flex: none; margin-top: 4px; color: var(--c-accent-dark); }

/* --- 活动页响应式 --- */
@media (max-width: 992px) {
  .promo-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .promo-offer { max-width: 480px; }
  .offer-grid { grid-template-columns: repeat(2, 1fr); }
  .promo-plan-grid { grid-template-columns: 1fr; }
  .cfg-panel { grid-template-columns: 1fr; }
  .rules-wrap { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .promo-ribbon .container { gap: 8px; font-size: 12.5px; text-align: center; }
  .promo-hero { padding: 44px 0 52px; }
  .promo-hero h1 { font-size: 30px; }
  .promo-hero .lead { font-size: 15.5px; }
  .promo-countdown { gap: 7px; }
  .cd-cell { min-width: 58px; padding: 8px 9px 7px; }
  .cd-cell b { font-size: 22px; }
  .promo-offer { padding: 24px 20px; }
  .promo-offer-price .now { font-size: 34px; }
  .offer-grid { grid-template-columns: 1fr; }
  .cfg-form { padding: 24px 20px; }
  .cfg-result { padding: 26px 20px; }
  .cfg-result .r-price .now { font-size: 36px; }
  .promo-plan { padding: 24px 20px 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .promo-badge .pulse { animation: none; }
}

/* --- 导航活动入口 --- */
.nav-link--promo {
  color: var(--c-accent-dark);
  font-weight: 600;
}
.nav-link--promo:hover,
.nav-link--promo.active { color: var(--c-accent-dark); }
.nav-link--promo .nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(40, 184, 148, 0.18);
  animation: promo-dot 2.4s var(--ease) infinite;
}
@keyframes promo-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(40, 184, 148, 0.18); }
  50% { box-shadow: 0 0 0 6px rgba(40, 184, 148, 0.06); }
}

/* --- 选哪个：结论式引导 --- */
.choose-list {
  border-top: 1px solid var(--c-border);
}
.choose-row {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px 28px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--c-border);
  transition: background var(--dur) var(--ease);
}
.choose-row:hover { background: var(--c-accent-soft); }
.choose-k {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-text-3);
}
.choose-q {
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text-2);
}
.choose-q b { color: var(--c-dark); font-weight: 600; }
.choose-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-accent-dark);
  white-space: nowrap;
}
.choose-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--dur) var(--ease);
}
.choose-row:hover .choose-link svg { transform: translateX(3px); }

/* --- 信任与合规条 --- */
/* 与前部同名声明分层合成：列宽/gap(24px)来自前段，边框/底色/内距来自此处；
   两处合成为当前计算值，修改前需两处一起核对（安全审查不允许直接删除本段）。 */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow: hidden;
}
.trust-item {
  padding: 26px 24px;
  border-right: 1px solid var(--c-border);
}
.trust-item:last-child { border-right: 0; }
.trust-item .k {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-text-3);
  margin-bottom: 10px;
}
.trust-item .v {
  display: block;
  font-size: 19px;
  font-weight: 600;
  color: var(--c-dark);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.trust-item p { font-size: 13px; line-height: 1.65; color: var(--c-text-2); }

/* --- 术语速查 --- */
.glossary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 56px;
}
.glossary-item {
  margin: 0;
  padding: 18px 0;
  border-top: 1px solid var(--c-border);
}
.glossary-item dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-dark);
  margin-bottom: 6px;
}
.glossary-item dd {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-text-2);
}

@media (max-width: 992px) {
  .trust-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n + 2) { border-bottom: 1px solid var(--c-border); }
}
@media (max-width: 768px) {
  .choose-row { grid-template-columns: 1fr; gap: 8px; padding: 20px 4px; }
  .choose-k { order: -1; }
  .glossary { grid-template-columns: 1fr; gap: 0; }
  .glossary-item:first-child { border-top: 0; }
}
@media (max-width: 480px) {
  .trust-strip { grid-template-columns: 1fr; }
  .trust-item { border-right: 0; border-bottom: 1px solid var(--c-border); }
  .trust-item:last-child { border-bottom: 0; }
}

/* --- 活动报名表单 --- */
.promo-form {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 40px);
}
.promo-form .btn-block { margin-top: var(--space-4); }
.promo-form .form-success { margin-top: var(--space-4); }

/* ==========================================================
   活动页质感精修（promo 专属，作用域 .promo-page）
   ========================================================== */

/* --- 分区色带与纹理：避免大面积纯白 --- */
.promo-page main > .section {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdfc 52%, #f4faf7 100%);
}
.promo-page main > .section.section-gray {
  background-color: #f4f8f7;
  background-image:
    radial-gradient(rgba(40, 184, 148, 0.055) 1px, transparent 1px),
    linear-gradient(180deg, #f5f9f8 0%, #f8fbfa 100%);
  background-size: 22px 22px, 100% 100%;
}
.promo-page main > .section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(1120px, 88%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(40, 184, 148, 0.3), transparent);
  pointer-events: none;
}
.promo-page main > .promo-hero::before,
.promo-page main > .promo-hero::after { display: none; }

/* --- 首屏：分层光斑 + 网格 + 噪点 --- */
.promo-hero {
  background:
    radial-gradient(1100px 520px at 78% -14%, rgba(78, 224, 180, 0.2), transparent 62%),
    radial-gradient(680px 380px at -6% 108%, rgba(27, 139, 139, 0.34), transparent 66%),
    radial-gradient(500px 300px at 92% 82%, rgba(40, 184, 148, 0.12), transparent 72%),
    linear-gradient(158deg, #081512 0%, #0d211c 44%, #09271f 100%);
}
.promo-hero .promo-hero-grid { position: relative; }
.promo-hero .promo-hero-grid::before {
  content: "";
  position: absolute;
  inset: -12% -6% -8%;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(72% 68% at 42% 34%, #000 0%, transparent 100%);
  mask-image: radial-gradient(72% 68% at 42% 34%, #000 0%, transparent 100%);
  pointer-events: none;
}
.promo-hero .promo-hero-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.45;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.09'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* --- 徽标与标题的排版对比 --- */
.promo-badge {
  padding: 5px 14px 5px 10px;
  background: rgba(78, 224, 180, 0.07);
  font-size: 12px;
  letter-spacing: 0.09em;
  font-weight: 500;
}
.promo-hero h1 {
  margin: 22px 0 20px;
  font-size: clamp(34px, 4.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.promo-hero h1 .hl {
  position: relative;
  background: linear-gradient(96deg, #7ef0d6 0%, #4ee0b4 48%, #25c99c 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.promo-hero .lead {
  font-size: 16.5px;
  color: rgba(255, 255, 255, 0.76);
}

/* CTA 主次分明 */
.promo-hero .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.promo-hero .hero-actions .btn-primary {
  box-shadow: 0 16px 34px rgba(78, 224, 180, 0.22);
}
.promo-hero .hero-actions .btn-outline {
  padding-inline: 22px;
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.03);
  font-weight: 500;
}

/* --- 倒计时：独立深色数字块 --- */
.promo-countdown {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 32px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(5, 18, 15, 0.86), rgba(7, 24, 20, 0.7));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 16px 34px rgba(0, 0, 0, 0.24);
}
.cd-group { display: flex; align-items: center; gap: 8px; }
.cd-cell {
  min-width: 62px;
  padding: 9px 10px 7px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  background: linear-gradient(180deg, #122b25 0%, #0a1c18 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.cd-cell b {
  font-size: clamp(23px, 2.8vw, 32px);
  color: #eafff8;
}
.cd-cell b.is-tick { animation: cd-tick 0.26s var(--ease-out); }
@keyframes cd-tick {
  0% { transform: translateY(-4px); opacity: 0.55; }
  100% { transform: translateY(0); opacity: 1; }
}
.cd-cell span { font-size: 11.5px; color: rgba(255, 255, 255, 0.5); letter-spacing: 0.06em; }
.cd-sep { margin-top: -12px; color: rgba(255, 255, 255, 0.35); }
.cd-divider {
  width: 1px;
  height: 34px;
  background: linear-gradient(180deg, transparent, rgba(78, 224, 180, 0.35), transparent);
}

/* --- 优惠卡：图标 + 序号 + 描边高光 --- */
.offer-card {
  gap: 8px;
  padding: 26px 24px;
  border-color: #e2eaea;
}
.offer-card::before {
  height: 2px;
  background: linear-gradient(90deg, rgba(40, 184, 148, 0.1), var(--c-accent) 30%, #4ee0b4 70%, rgba(40, 184, 148, 0.1));
}
.offer-card::after {
  content: "";
  position: absolute;
  top: -56px;
  right: -42px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(40, 184, 148, 0.16), transparent 66%);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.offer-card:hover { transform: translateY(-5px); }
.offer-card:hover::after { opacity: 1; }
.offer-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  border: 1px solid rgba(40, 184, 148, 0.22);
  border-radius: 10px;
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  transition: transform var(--dur) var(--ease);
}
.offer-card:hover .offer-icon { transform: translateY(-2px); }
.offer-icon svg { width: 17px; height: 17px; }
.offer-card.is-featured {
  border-color: rgba(78, 224, 180, 0.34);
  background: linear-gradient(165deg, #16281f 0%, #0e1f1a 100%);
  box-shadow: 0 20px 44px rgba(14, 31, 26, 0.24);
  color: #fff;
}
.offer-card.is-featured h3 { color: #fff; }
.offer-card.is-featured .offer-num { color: #7ef0d6; }
.offer-card.is-featured p { color: rgba(255, 255, 255, 0.72); }
.offer-card.is-featured .offer-quote {
  border-top-color: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.6);
}
.offer-card.is-featured .offer-quote b { color: #4ee0b4; }
.offer-card.is-featured .offer-icon {
  border-color: rgba(78, 224, 180, 0.3);
  background: rgba(78, 224, 180, 0.12);
  color: #4ee0b4;
}

/* --- 套餐卡：顶部标签带 + 价格排版 + 优惠胶囊 --- */
.promo-plan[data-band] {
  overflow: hidden;
  padding-top: 52px;
}
.promo-plan[data-band]::before {
  content: attr(data-band);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 8px 26px;
  border-bottom: 1px solid rgba(40, 184, 148, 0.18);
  background: linear-gradient(90deg, rgba(40, 184, 148, 0.13), rgba(78, 224, 180, 0.04));
  color: var(--c-accent-dark);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
}
.promo-plan.hot[data-band]::before {
  border-bottom-color: transparent;
  background: linear-gradient(90deg, #4ee0b4, #28b894);
  color: #0f211a;
}
.promo-plan .plan-price .unit {
  margin: 0 0 6px -2px;
  font-size: 12.5px;
  color: var(--c-text-3);
}
.promo-plan .plan-price .was { margin-bottom: 6px; }
.plan-save {
  display: inline-flex;
  align-self: flex-start;
  margin: 6px 0 0;
  padding: 3px 10px;
  border: 1px solid rgba(40, 184, 148, 0.24);
  border-radius: var(--radius-pill);
  background: var(--c-accent-soft);
  color: var(--c-accent-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.promo-plan .plan-gift { margin-top: 8px; }

/* --- 流程：圆形编号 + 线性图标 + 渐隐连接 --- */
.steps { position: relative; }
.steps > .step-card:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -17px;
  width: 12px;
  height: 12px;
  border-top: 1px solid rgba(40, 184, 148, 0.5);
  border-right: 1px solid rgba(40, 184, 148, 0.5);
  transform: translateY(-50%) rotate(45deg);
  pointer-events: none;
}
.step-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.step-num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent) 0%, #4ee0b4 100%);
  color: #0f211a;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 0 0 4px rgba(40, 184, 148, 0.12);
}
.step-ico {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--c-border);
  border-radius: 11px;
  background: #fff;
  color: var(--c-accent-dark);
}
.step-ico svg { width: 18px; height: 18px; }

/* --- 表单与提示 --- */
.promo-page .field input:focus,
.promo-page .field select:focus,
.promo-page .field textarea:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(40, 184, 148, 0.14), 0 4px 14px rgba(40, 184, 148, 0.1);
}
.promo-page .field.invalid input,
.promo-page .field.invalid select {
  box-shadow: 0 0 0 3px rgba(217, 83, 79, 0.08);
}
.field.invalid .err::before {
  content: "!";
  display: inline-grid;
  place-items: center;
  width: 14px;
  height: 14px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--c-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  vertical-align: -2px;
}
.form-success.show {
  display: flex;
  align-items: center;
  gap: 10px;
}
.form-success.show::before {
  content: "";
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--c-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}
.promo-form .btn.is-loading { position: relative; }

/* --- 价格联动：0.2s 过渡，不硬跳 --- */
.cfg-result .r-price .now {
  transition: opacity 0.1s var(--ease), transform 0.1s var(--ease);
}
.cfg-result .r-price .now.is-swapping {
  opacity: 0;
  transform: translateY(4px);
}

/* --- 活动页移动端细节 --- */
@media (max-width: 992px) {
  .steps > .step-card:not(:last-child)::after { display: none; }
}
@media (max-width: 768px) {
  .promo-hero .promo-hero-grid::before { inset: -8% -8%; background-size: 36px 36px; }
  .promo-countdown { width: 100%; justify-content: space-between; gap: 10px; padding: 12px; margin-top: 26px; }
  .cd-group { flex: 1; justify-content: center; gap: 6px; }
  .cd-cell { flex: 1; min-width: 0; padding: 8px 6px 6px; }
  .cd-cell b { font-size: 24px; }
  .cd-cell span { font-size: 11px; }
  .cd-sep { display: none; }
  .promo-hero .hero-actions { gap: 10px; }
  .promo-hero .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .promo-plan[data-band] { padding-top: 48px; }
  .offer-card:hover { transform: none; }
  .offer-card::after { display: none; }
}
@media (max-width: 480px) {
  .promo-countdown { gap: 6px; }
  .promo-hero .hero-actions .btn { width: 100%; }
  .cd-cell b { font-size: 21px; }
  .step-card { padding: 26px 22px 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .cd-cell b.is-tick { animation: none; }
  .offer-card,
  .offer-icon,
  .cfg-result .r-price .now { transition: none; }
}

/* ---------- 排版与换行兜底（错行 / 断字 / 价格拆行） ---------- */
body {
  word-break: normal;
  overflow-wrap: anywhere;
  line-break: strict;
  hyphens: none;
  text-wrap: pretty;
}
h1, h2, h3, h4, .section-title, .card h3, .offer-card h3, .step-card h3 {
  text-wrap: balance;
}
/* 标签 / 徽章 / 按钮：保持单行，过长省略而不是折成两行 */
.tag, .tag-green, .tag-dark, .ribbon-hot, .promo-badge, .save-pill, .plan-save,
.plan-gift, .plan-stock span, .nav-link, .nav-drop-link strong, .m-link,
.btn, .cfg-opt, .hero-actions a, .promo-plan .plan-region {
  white-space: nowrap;
  max-width: 100%;
}
.tag, .ribbon-hot, .promo-badge, .save-pill, .plan-save, .plan-gift {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 0 0 auto;
}
/* 标签行允许换行，避免标签被相邻长标题挤压而截字 */
.region-top {
  flex-wrap: wrap;
  gap: 8px 10px;
}
/* 价格与单位：¥ 符号、数字、/ 月、50TB、1×/24 等整体不拆行 */
.plan-price, .promo-offer-price, .r-price, .cd-cell,
.plan-price .now, .plan-price .was, .plan-price .unit,
.promo-offer-price .now, .promo-offer-price .was,
.r-price .now, .r-price .per, .plan-price .cur {
  white-space: nowrap;
}
.plan-price, .promo-offer-price, .r-price { flex-wrap: nowrap; }
/* flex / grid 子项允许收缩，避免长英文或型号撑破容器 */
.nav-inner > *, .footer-main > *, .grid > *, .offer-grid > *, .promo-plan-grid > *,
.cfg-form > *, .cfg-result > *, .card, .promo-offer, th, td { min-width: 0; }
/* 表格：长文本允许换行，但不撑破列宽、不溢出容器 */
table { max-width: 100%; }
th, td { overflow-wrap: anywhere; }

/* ---------- reveal 动画失败保护：脚本不可用时内容必须可见 ---------- */
@media (scripting: none) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---------- 活动档位标签：桌面单行，≤480px 允许长标签折成两行 ---------- */
.nowrap { white-space: nowrap; }
@media (max-width: 480px) {
  [data-campaign-tiers] {
    align-items: center;
    gap: 8px 6px;
  }
  [data-campaign-tiers] .tag {
    display: inline-block;
    max-width: 100%;
    padding: 6px 10px;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    text-align: center;
    line-height: 1.45;
    overflow-wrap: anywhere;
    hyphens: none;
  }
  /* 末尾的价格/单位仍整体不拆行 */
  [data-campaign-tiers] .tag .nowrap,
  [data-campaign-tiers] .tag code { white-space: nowrap; }
}

/* ---------- 产品上下架联动（public.products 动态状态） ---------- */
.tag-off {
  background: rgba(214, 138, 34, 0.12);
  color: #9a6100;
  border: 1px solid rgba(214, 138, 34, 0.35);
}
.region-card.is-off {
  opacity: 0.72;
  filter: grayscale(0.6);
}
.region-card.is-off:hover {
  transform: none;
  box-shadow: var(--shadow-card);
}
.region-card.is-off .desc { color: var(--c-text-3); }
.region-link.is-disabled,
.btn.is-disabled,
.btn:disabled {
  background: var(--c-bg-gray-2, #f2f4f5);
  border-color: transparent;
  color: var(--c-text-3);
  cursor: not-allowed;
  box-shadow: none;
  transform: none !important;
  pointer-events: none;
}
.region-link.is-disabled { background: none; padding: 0; }

/* 详情页「补货中」提示条 */
.off-notice { padding: 20px 0 0; }
.off-notice-box {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 18px 22px;
  border: 1px solid rgba(214, 138, 34, 0.35);
  background: rgba(214, 138, 34, 0.06);
  border-radius: var(--radius-md);
}
.off-notice-text { flex: 1 1 320px; min-width: 0; }
.off-notice-text strong { display: block; font-size: 16px; color: var(--c-dark); }
.off-notice-text p { margin: 6px 0 0; font-size: 14px; color: var(--c-text-2); }
.off-remind {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--c-bg-gray-2, #f2f4f5);
  color: var(--c-text-3);
  font-size: 13px;
  cursor: not-allowed;
}
.off-alt { flex: 1 1 100%; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.off-alt-k { font-size: 13px; color: var(--c-text-3); }
.off-alt .btn { margin: 0; }
.is-off-section .is-off-price {
  filter: grayscale(0.65);
  opacity: 0.7;
}
.promo-plan.is-off,
.promo-offer.is-off {
  opacity: 0.72;
  filter: grayscale(0.6);
}
.ribbon-hot.is-off { background: #9a6100; }

@media (max-width: 640px) {
  .off-notice-box { padding: 16px; gap: 10px; }
  .off-notice-text { flex: 1 1 100%; }
  .off-alt { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   资讯模块（列表 / 详情）、法务页、客户案例空态
   ============================================================ */

/* ---------- 表单基础 ---------- */
.input {
  height: 42px;
  padding: 0 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--c-text);
  font: inherit;
  font-size: 14px;
  min-width: 0;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input::placeholder { color: var(--c-text-3); }
.input:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(40, 184, 148, 0.14);
}

/* ---------- 列表工具条 ---------- */
.articles-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.article-tabs { display: flex; flex-wrap: wrap; gap: 8px; min-width: 0; }
.article-tab {
  appearance: none;
  border: 1px solid var(--c-border);
  background: #fff;
  color: var(--c-text-2);
  font: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
  white-space: nowrap;
}
.article-tab:hover { border-color: rgba(40, 184, 148, 0.45); color: var(--c-accent-dark); }
.article-tab.active { background: var(--c-accent-strong); border-color: var(--c-accent-strong); color: #fff; }
.article-tab:focus-visible,
.pager-btn:focus-visible,
.share-btn:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }
.article-search { display: flex; gap: 8px; flex: 1 1 280px; max-width: 380px; }
.article-search .input { flex: 1 1 auto; width: 100%; }
.article-search .btn { margin: 0; flex: 0 0 auto; }

/* ---------- 文章卡片 ---------- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.article-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}
.article-card .article-cover {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background: var(--c-bg-gray-2);
  color: var(--c-accent-dark);
  font-size: 30px;
  font-weight: 700;
  overflow: hidden;
}
.article-card .article-cover.cover-empty {
  background: linear-gradient(135deg, rgba(40, 184, 148, 0.16), rgba(27, 139, 139, 0.06));
}
.article-card .article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.article-pin {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: rgba(26, 26, 26, 0.72);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.article-card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 auto;
  padding: 18px 20px 20px;
  min-width: 0;
}
.article-card-body > .tag { align-self: flex-start; }
.article-card-body h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
  color: var(--c-dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card-meta {
  margin-top: auto;
  padding-top: 6px;
  font-size: 12px;
  color: var(--c-text-3);
}

/* ---------- 分页 ---------- */
.pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 36px;
}
.pager-btn {
  appearance: none;
  border: 1px solid var(--c-border);
  background: #fff;
  color: var(--c-text-2);
  font: inherit;
  font-size: 13px;
  min-width: 38px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}
.pager-btn:hover:not(:disabled) { border-color: var(--c-accent); color: var(--c-accent-dark); }
.pager-btn.active { background: var(--c-accent-strong); border-color: var(--c-accent-strong); color: #fff; }
.pager-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------- 空态 ---------- */
.empty-state {
  padding: 56px 24px;
  text-align: center;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-lg);
  background: var(--c-bg-gray);
}
.empty-state strong { display: block; font-size: 16px; color: var(--c-dark); }
.empty-state p { margin: 8px 0 0; font-size: 14px; color: var(--c-text-2); }

/* ---------- 文章详情 ---------- */
.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}
.article-main { min-width: 0; }
.article-detail { padding-top: 8px; }
.article-head h1 {
  margin: 14px 0 12px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.32;
  color: var(--c-dark);
  overflow-wrap: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-bottom: 22px;
  font-size: 13px;
  color: var(--c-text-3);
}
.article-meta span:empty { display: none; }
.article-detail > .article-cover {
  margin: 0 0 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-bg-gray-2);
}
.article-detail > .article-cover img {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-text-2);
  overflow-wrap: break-word;
}
.article-body > :first-child { margin-top: 0; }
.article-body h1,
.article-body h2 { font-size: 22px; line-height: 1.45; margin: 36px 0 12px; color: var(--c-dark); }
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 { font-size: 18px; line-height: 1.5; margin: 28px 0 10px; color: var(--c-dark); }
.article-body p { margin: 0 0 18px; }
.article-body ul,
.article-body ol { margin: 0 0 18px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  margin: 0 0 18px;
  padding: 14px 18px;
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--c-bg-gray);
  color: var(--c-text-2);
}
.article-body pre {
  margin: 0 0 18px;
  padding: 16px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: var(--c-footer);
  color: #e6f4ef;
  font-size: 13px;
  line-height: 1.7;
}
.article-body code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--c-bg-gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}
.article-body pre code { padding: 0; background: none; color: inherit; }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius-md); }
.article-body a { color: var(--c-accent-dark); text-decoration: underline; text-underline-offset: 2px; }
.article-body hr { margin: 28px 0; border: 0; border-top: 1px solid var(--c-border); }
.article-body table { width: 100%; margin: 0 0 18px; border-collapse: collapse; font-size: 14px; }
.article-body th,
.article-body td { padding: 10px 12px; border: 1px solid var(--c-border); text-align: left; }
.article-body th { background: var(--c-bg-gray); color: var(--c-dark); font-weight: 600; }
.article-loading { color: var(--c-text-3); }
.article-error { margin: 0 0 16px; color: var(--c-danger-text); }
.article-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.article-share { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 13px; color: var(--c-text-3); }
.share-btn {
  appearance: none;
  border: 1px solid var(--c-border);
  background: #fff;
  color: var(--c-text-2);
  font: inherit;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.share-btn:hover { border-color: var(--c-accent); color: var(--c-accent-dark); }
.article-preview-note {
  margin: 0 0 18px;
  padding: 12px 16px;
  border: 1px solid rgba(214, 138, 34, 0.35);
  border-radius: var(--radius-md);
  background: rgba(214, 138, 34, 0.08);
  font-size: 14px;
  color: #8a5a10;
}
.article-cta {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
}
.article-cta h2, .article-cta h3 { margin: 0; font-size: 18px; color: var(--c-dark); }
.article-cta p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--c-text-2); }
.article-cta .btn { margin: 0; text-align: center; }

/* ---------- 法务页 ---------- */
.legal-body { max-width: 880px; }
.legal-body h2 { margin: 32px 0 10px; font-size: 20px; color: var(--c-dark); }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p { margin: 0 0 14px; font-size: 15px; line-height: 1.9; color: var(--c-text-2); }
.legal-body ul,
.legal-body ol { margin: 0 0 14px; padding-left: 22px; color: var(--c-text-2); font-size: 15px; line-height: 1.9; }
.legal-body a { color: var(--c-accent-dark); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- 客户案例 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.case-card { padding: 24px; }
.case-card h3 { margin: 0 0 8px; font-size: 17px; color: var(--c-dark); }
.case-card .case-meta { margin: 0 0 10px; font-size: 13px; color: var(--c-text-3); }
.case-card p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--c-text-2); }

@media (max-width: 992px) {
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cases-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-shell { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .article-cta { position: static; }
}
@media (max-width: 640px) {
  .article-grid,
  .cases-grid { grid-template-columns: minmax(0, 1fr); }
  .articles-toolbar { align-items: stretch; }
  .article-search { flex: 1 1 100%; max-width: none; }
  .article-search .input { min-width: 0; }
  .article-foot { align-items: flex-start; flex-direction: column; }
  .empty-state { padding: 40px 18px; }
}

/* ============================================================
   2026-11-07 UI 布局精修（前台共享骨架）
   主题：层级 / 留白节奏 / 卡片与表格可读性 / 交互状态
   约束：品牌主色 #1a1a1a 与青绿 #28b894 不变；仅收敛令牌与补状态
   ============================================================ */

/* 间距标尺补齐：数值与既有计算值一致，便于后续统一引用 */
:root {
  --space-12: 12px;
  --space-20: 20px;
  --space-28: 28px;
  --space-36: 36px;
}

/* ---------- 容器与区块节奏 ---------- */
.container {
  padding-inline: clamp(16px, 4vw, 24px);
}
.hero-title { text-wrap: balance; }
.hero-title .nowrap { white-space: nowrap; }
.section-head > h2 { text-wrap: balance; }
.section-head .section-desc { text-wrap: pretty; }

/* ---------- 卡片：键盘聚焦与 hover 同权，长内容不撑破网格 ---------- */
.card,
.region-card,
.feature-card,
.price-card,
.usecase-card,
.contact-card,
.case-card,
.article-card,
.picker-card {
  min-width: 0;
  overflow-wrap: anywhere;
}
.card:focus-within,
.region-card:focus-within,
.feature-card:focus-within,
.price-card:focus-within,
.usecase-card:focus-within,
.contact-card:focus-within,
.case-card:focus-within,
.article-card:focus-within,
.picker-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(40, 184, 148, 0.4);
}

/* ---------- 表格：行聚焦、标签不折行、字距稳定 ---------- */
.table-scroll tbody tr:focus-within td,
table tbody tr:focus-within td {
  background: var(--c-accent-soft);
}
.table-scroll th,
.table-scroll td {
  line-height: 1.55;
}
.table-scroll td { overflow-wrap: anywhere; }
.table-scroll td .tag,
.table-scroll td .badge { white-space: nowrap; }

/* ---------- 表单：禁用 / 悬停 / 非法状态补全 ---------- */
.field input:not(:disabled):hover,
.field select:not(:disabled):hover,
.field textarea:not(:disabled):hover,
.input:not(:disabled):hover,
.select:not(:disabled):hover,
.textarea:not(:disabled):hover {
  border-color: #c9d2d2;
}
.field input:disabled,
.field select:disabled,
.field textarea:disabled,
.input:disabled,
.select:disabled,
.textarea:disabled {
  background: var(--c-bg-gray);
  color: var(--c-text-3);
  cursor: not-allowed;
  box-shadow: none;
}
.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"],
.input[aria-invalid="true"],
.select[aria-invalid="true"],
.textarea[aria-invalid="true"] {
  border-color: var(--c-danger);
}
.field input[aria-invalid="true"]:focus,
.field select[aria-invalid="true"]:focus,
.field textarea[aria-invalid="true"]:focus,
.input[aria-invalid="true"]:focus,
.select[aria-invalid="true"]:focus,
.textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(217, 83, 79, 0.15);
}

/* ---------- 标签与空态 ---------- */
.tag,
.badge,
.promo-badge,
.save-pill,
.plan-save {
  white-space: nowrap;
}
.empty-state .btn { margin-top: var(--space-20); }

/* ---------- 触屏：取消粘滞 hover，保留按压反馈 ---------- */
/* ============================================================
   2026-11-08 全站视觉规则收口
   规则：层级靠字号/字重令牌，不靠多加边框；区块呼吸统一由 section 间距
   clamp 控制；卡片只承载并列信息，可比数据用表格；数字统一等宽、价格与
   单位不拆行；图标与文字同基线；动效统一 180–260ms 且尊重减少动态偏好。
   以下用 :where() 零优先级补齐，避免覆盖既有组件样式。
   ============================================================ */

/* 1) 标题断行平衡、正文行宽与长串不溢出 */
:where(h1, h2, h3, h4) { text-wrap: balance; }
:where(p, li, dd, figcaption) { text-wrap: pretty; }
:where(p, li, dd, figcaption, .article-body a, .prose a, .breadcrumb a) {
  overflow-wrap: break-word;
}
:where(.article-body, .prose, .legal-body) { overflow-wrap: anywhere; }
:where(.article-body, .prose, .legal-body) p { max-width: 72ch; }

/* 2) 数字与单位：等宽数字右对齐感、价格/单位不拆行 */
:where(.price-amount, .plan-price, .r-price, .stat-cell b, .hero-stat b, .num) {
  font-variant-numeric: tabular-nums;
}
:where(.price-amount, .plan-price, .r-price, .offer-price, .num, .nowrap) {
  white-space: nowrap;
}
:where(.price-amount small, .plan-price small, .r-price small, .price-note) {
  white-space: nowrap;
}
:where(td.num, td.price, td.amount, .data-table .num) {
  text-align: right;
}

/* 3) 图标与文字基线 + 状态色克制（仅文字与描边，不铺底） */
:where(.meta svg, .spec-ico svg, .badge svg, .tag svg) { vertical-align: -2px; }
:where(.status-dot) { box-shadow: none; }

/* 4) 交互全覆盖：焦点可见、禁用可辨、触屏命中 */
:where(input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}
:where(input, select, textarea):disabled {
  background: var(--c-bg-gray, #f5f7f7);
  color: var(--c-text-3, #616b74);
  cursor: not-allowed;
}
:where(.btn:disabled, .pager-btn:disabled) {
  transform: none;
  box-shadow: none;
}

/* 5) 响应式落点：320/375 收紧留白，按钮与筛选命中不小于 44px */
@media (max-width: 380px) {
  :where(.container, .wrap, .shell) { padding-inline: 16px; }
  :where(.hero-title) { font-size: clamp(26px, 8.4vw, 34px); }
  :where(.hero-actions) { display: grid; gap: 10px; }
  :where(.hero-actions .btn) { width: 100%; justify-content: center; }
  :where(.footer-grid, .footer-main) { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 768px) {
  :where(.btn) { min-height: 44px; }
  :where(.btn-sm) { min-height: 40px; }
  :where(.nav-toggle, .menu-toggle, .icon-btn) { min-width: 44px; min-height: 44px; }
}

/* 6) 减少动态偏好：统一兜底，不做位移/闪烁 */
@media (prefers-reduced-motion: reduce) {
  :where(*, *::before, *::after) {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (hover: none) {
  .card:hover,
  .region-card:hover,
  .feature-card:hover,
  .price-card:hover,
  .usecase-card:hover,
  .contact-card:hover,
  .case-card:hover,
  .article-card:hover,
  .picker-card:hover,
  .card:focus-within,
  .region-card:focus-within,
  .feature-card:focus-within,
  .price-card:focus-within,
  .usecase-card:focus-within,
  .contact-card:focus-within,
  .case-card:focus-within,
  .article-card:focus-within,
  .picker-card:focus-within {
    transform: none;
    box-shadow: var(--shadow-card);
    border-color: var(--c-border);
  }
}

/* ---------- 320px 档：收紧容器与表格内边距，杜绝横向溢出 ---------- */
@media (max-width: 380px) {
  .container { padding-inline: 16px; }
  .section-head { margin-bottom: var(--space-28); }
  .table-scroll th,
  .table-scroll td { padding: 10px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .card:focus-within,
  .region-card:focus-within,
  .feature-card:focus-within,
  .price-card:focus-within,
  .usecase-card:focus-within,
  .contact-card:focus-within,
  .case-card:focus-within,
  .article-card:focus-within,
  .picker-card:focus-within {
    transform: none;
  }
}

/* ---------- 百分比宽度工具类（替代内联 width，取值与设计稿一一对应） ---------- */
.pct-30 { width: 30%; }
.pct-40 { width: 40%; }
.pct-52 { width: 52%; }
.pct-70 { width: 70%; }
.pct-76 { width: 76%; }
.pct-78 { width: 78%; }
.pct-80 { width: 80%; }
.pct-82 { width: 82%; }
.pct-84 { width: 84%; }
.pct-86 { width: 86%; }
.pct-88 { width: 88%; }
.pct-90 { width: 90%; }
.pct-92 { width: 92%; }
.pct-93 { width: 93%; }
.pct-94 { width: 94%; }
.pct-96 { width: 96%; }

/* ===== 年付价格展示（pricing.js） ===== */
.table-scroll .price-sub { display: block; margin-top: 2px; font-size: 12px; color: var(--c-text-3); }
.price-save { color: var(--c-accent-dark); font-weight: 600; }
.pricing-note { margin-top: 10px; }

/* ===== 询盘预配置回显与实测入口 ===== */
.lead-preset { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; margin: 0 0 18px; border: 1px solid rgba(40, 184, 148, 0.35); background: var(--c-accent-soft); border-radius: 10px; font-size: 14px; color: var(--c-text-2); }
.lead-preset strong { color: var(--c-accent-dark); font-weight: 600; }
.lead-preset-clear { flex: 0 0 auto; border: 1px solid var(--c-border); background: #fff; color: var(--c-text-2); font-size: 13px; padding: 4px 10px; border-radius: 6px; cursor: pointer; }
.lead-preset-clear:hover { border-color: var(--c-accent); color: var(--c-accent-dark); }
.hero-test-note { margin-top: 10px; font-size: 13px; color: var(--c-text-3); line-height: 1.6; }
@media (max-width: 560px) { .lead-preset { flex-direction: column; align-items: flex-start; } }

/* ===== 费用估算器（U17） ===== */
.est-card { padding: 22px; }
.est-fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.est-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.est-field label, .est-field legend { font-size: 13px; font-weight: 600; color: var(--c-text-2); }
.est-field select { height: 42px; padding: 0 12px; border: 1px solid var(--c-border); border-radius: var(--radius-md); background: #fff; font-size: 14px; color: var(--c-text); }
.est-billing { border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 8px 12px 10px; margin: 0; }
.est-billing legend { padding: 0 4px; }
.est-billing label { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; color: var(--c-text); margin-right: 16px; cursor: pointer; }
.est-result { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.est-item { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border: 1px solid var(--c-border); border-radius: var(--radius-md); background: #fafbfc; }
.est-item span { font-size: 12px; color: var(--c-text-3); }
.est-item strong { font-size: 18px; color: var(--c-text); font-variant-numeric: tabular-nums; }
.est-item.est-active { border-color: var(--c-accent); box-shadow: 0 0 0 2px var(--c-accent-soft); }
.est-item.est-save { border-color: rgba(40, 184, 148, 0.28); background: #f4fbf8; }
.est-item.est-save strong { color: var(--c-accent-dark); }
.est-note { margin: 14px 0 0; font-size: 12px; color: var(--c-text-3); line-height: 1.7; }
@media (max-width: 900px) {
  .est-fields { grid-template-columns: 1fr 1fr; }
  .est-result { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .est-card { padding: 16px; }
  .est-fields, .est-result { grid-template-columns: 1fr; }
  .est-item strong { font-size: 17px; }
}

/* ===== 全站咨询浮窗（U21） ===== */
.cw-root { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.cw-bubble { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border: 1px solid var(--c-accent-strong); background: var(--c-accent-strong); color: #fff; border-radius: 999px; font-size: 14px; font-weight: 600; cursor: pointer; box-shadow: 0 8px 20px rgba(19, 120, 96, 0.22); }
.cw-bubble:hover { background: var(--c-accent-dark); border-color: var(--c-accent-dark); }
.cw-bubble:focus-visible { outline: 3px solid var(--c-accent-soft); outline-offset: 2px; }
.cw-bubble-ico { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 50%; background: rgba(255, 255, 255, 0.24); font-size: 12px; line-height: 1; }
.cw-panel { width: 300px; max-width: calc(100vw - 24px); padding: 16px; background: #fff; border: 1px solid var(--c-border); border-radius: 14px; box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16); }
.cw-panel[hidden] { display: none; }
.cw-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.cw-head strong { font-size: 15px; color: var(--c-text); }
.cw-close { flex: 0 0 auto; width: 28px; height: 28px; border: 1px solid var(--c-border); border-radius: 8px; background: #fff; color: var(--c-text-2); font-size: 16px; line-height: 1; cursor: pointer; }
.cw-close:hover { border-color: var(--c-accent); color: var(--c-accent-dark); }
.cw-close:focus-visible { outline: 3px solid var(--c-accent-soft); outline-offset: 1px; }
.cw-desc { margin: 10px 0 12px; font-size: 13px; line-height: 1.7; color: var(--c-text-2); }
.cw-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.cw-links li { display: flex; flex-direction: column; gap: 2px; padding: 8px 10px; border: 1px solid var(--c-border); border-radius: 10px; }
.cw-links li:hover { border-color: var(--c-accent); background: var(--c-accent-soft); }
.cw-links a { font-size: 14px; font-weight: 600; color: var(--c-text); text-decoration: none; }
.cw-links a:focus-visible { outline: 3px solid var(--c-accent-soft); outline-offset: 2px; }
.cw-links span { font-size: 12px; color: var(--c-text-3); }
.cw-foot { margin: 12px 0 0; font-size: 12px; color: var(--c-text-3); }
@media (max-width: 560px) {
  .cw-root { left: 12px; right: 12px; bottom: 12px; }
  .cw-panel { width: 100%; max-width: 320px; }
  .cw-bubble { padding: 11px; }
  .cw-bubble-text { display: none; }
}