/* ==========================================================================
   邻犀科技官网 · 设计系统
   1. 变量  2. 基础  3. 布局  4. 按钮/表单  5. 头部与页脚  6. 首页
   7. 内容组件（产品/优势/场景/案例/新闻）  8. 文章与联系页  9. 动效  10. 响应式
   修改主题色只需改 --brand 三档 + --brand-50/100。
   ========================================================================== */

/* 1. 变量 ---------------------------------------------------------------- */
:root {
  --brand: #1677ff;
  --brand-600: #0b5bd3;
  --brand-700: #0846a6;
  --brand-50: #eff6ff;
  --brand-100: #dcebff;
  --brand-200: #c2dcff;

  --ink: #0e1726;
  --ink-2: #38455a;
  --ink-3: #6b7a90;
  --ink-4: #93a2b8;

  --line: #e5eaf2;
  --line-2: #eff3f9;
  --bg: #ffffff;
  --bg-soft: #f6f9fe;

  --ok: #12b76a;
  --warn: #f79009;
  --danger: #e5484d;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;

  --shadow-1: 0 1px 2px rgba(15, 38, 71, 0.04), 0 10px 28px rgba(15, 38, 71, 0.06);
  --shadow-2: 0 24px 60px rgba(11, 42, 91, 0.12);

  --container: 1200px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* 2. 基础 ---------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

p {
  margin: 0;
}

ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

img,
svg {
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
}

::selection {
  background: var(--brand-100);
  color: var(--brand-700);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.icon {
  flex: 0 0 auto;
  vertical-align: middle;
}

.icon--left {
  transform: rotate(180deg);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 18px;
  border-radius: 0 0 10px 10px;
  background: var(--brand);
  color: #fff;
  font-size: 15px;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 0;
}

/* 3. 布局 ---------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.container--narrow {
  max-width: 860px;
}

.section {
  padding: 96px 0;
}

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

.section--tight {
  padding: 52px 0;
}

.section--flush,
.section--flush-top {
  padding-top: 0;
}

.eyebrow {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-600);
}

.eyebrow--pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--brand-100);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--brand-600);
  font-size: 14px;
  letter-spacing: 0.02em;
  text-transform: none;
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.08);
}

.eyebrow--pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.16);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 44px;
}

.section-head__title {
  margin-top: 12px;
  font-size: clamp(26px, 2.5vw, 36px);
  line-height: 1.3;
}

.section-head__lead {
  margin-top: 12px;
  max-width: 660px;
  color: var(--ink-3);
  font-size: 16.5px;
}

.section-head__cta {
  flex: 0 0 auto;
}

.section-head--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
}

.section-head--center .section-head__lead {
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--tight {
  gap: 16px;
}

/* 4. 按钮 / 表单 --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn--primary {
  background: linear-gradient(135deg, #3d8bff 0%, #1677ff 46%, #0b5bd3 100%);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.22);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(22, 119, 255, 0.3);
}

.btn--ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--brand-200);
  color: var(--brand-600);
  background: var(--brand-50);
}

.btn--light {
  background: #fff;
  color: var(--brand-700);
  box-shadow: 0 8px 20px rgba(4, 30, 70, 0.16);
}

.btn--light:hover {
  transform: translateY(-1px);
}

.btn--outline-light {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.75);
}

.btn--lg {
  height: 50px;
  padding: 0 26px;
  font-size: 16.5px;
}

.btn--sm {
  height: 38px;
  padding: 0 16px;
  font-size: 15px;
}

.btn--block {
  width: 100%;
}

.field {
  display: flex;
  flex-direction: column;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  margin-bottom: 8px;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
}

.field .req {
  margin-left: 3px;
  color: var(--danger);
  font-style: normal;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font-family: inherit;
  font-size: 15.5px;
  line-height: 1.5;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field textarea {
  min-height: 122px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--ink-4);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.1);
}

.field__error {
  margin-top: 6px;
  color: var(--danger);
  font-size: 13.5px;
}

/* 5. 头部 / 页脚 --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(15, 38, 71, 0.05);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

/* VI lockup 为内联 SVG：高度由 height 属性给出，宽度按 viewBox(420×120) 比例自适应 */
.brand__lockup {
  display: block;
  flex: 0 0 auto;
}

/* SVG <text> 可被 CSS 控制：字体栈继承 body，主名/副标分深浅两套配色 */
.brand__lockup-name {
  fill: var(--ink);
}

.brand__lockup-sub {
  fill: var(--ink-4);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav__link {
  padding: 9px 13px;
  border-radius: 8px;
  color: var(--ink-2);
  font-size: 15.5px;
  font-weight: 500;
  white-space: nowrap;
}

.nav__link:hover {
  background: var(--brand-50);
  color: var(--brand-600);
}

.nav__link.is-active {
  background: var(--brand-50);
  color: var(--brand-600);
  font-weight: 600;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink-2);
  cursor: pointer;
}

.nav-toggle__close {
  display: none;
}

.nav-toggle[aria-expanded='true'] .nav-toggle__open {
  display: none;
}

.nav-toggle[aria-expanded='true'] .nav-toggle__close {
  display: inline-flex;
}

.mobile-nav {
  padding: 8px 24px 24px;
  border-bottom: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 18px 30px rgba(15, 38, 71, 0.08);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav__list {
  margin-bottom: 16px;
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
  font-size: 16.5px;
  font-weight: 500;
}

.mobile-nav__link.is-active {
  color: var(--brand-600);
}

.mobile-nav__arrow {
  color: var(--ink-4);
}

.mobile-nav__contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-2);
  color: var(--ink-3);
  font-size: 14.5px;
}

.mobile-nav__contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.site-footer {
  padding: 64px 0 28px;
  background: #0b1424;
  color: rgba(255, 255, 255, 0.62);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}

/* 页脚为深底：同一套 lockup 只换文字颜色，图形不变 */
.brand--footer .brand__lockup-name {
  fill: #fff;
}

.brand--footer .brand__lockup-sub {
  fill: rgba(255, 255, 255, 0.42);
}

.footer__desc {
  margin-top: 18px;
  max-width: 330px;
  font-size: 14.5px;
  line-height: 1.85;
}

.footer__contact {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14.5px;
}

.footer__contact svg {
  margin-top: 3px;
  opacity: 0.55;
}

.footer__contact a:hover {
  color: #fff;
}

.footer__title {
  margin-bottom: 16px;
  color: #fff;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.footer__links li + li {
  margin-top: 10px;
}

.footer__links a {
  color: rgba(255, 255, 255, 0.58);
  font-size: 14.5px;
}

.footer__links a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.42);
  font-size: 13.5px;
}

.footer__legal {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer__legal a:hover {
  color: #fff;
}

.footer__dot {
  opacity: 0.5;
}

/* 6. 首页 ---------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 60px;
  background: linear-gradient(180deg, #f5f9ff 0%, #fbfdff 46%, #f4f8fe 100%);
}

/* 数据条：延续首屏的浅蓝底，与首屏收成一个视觉块，白卡才有落点 */
/* 用双类名提高特异性，否则会被后面媒体查询里的 .section 内边距覆盖 */
.section.section--stats {
  padding: 0 0 72px;
  /* 下端渐隐到白，与下一段无缝衔接，避免出现一条「蓝色横带」的硬边 */
  background: linear-gradient(180deg, #f4f8fe 0%, #f8fbfe 46%, #ffffff 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(680px 420px at 82% 8%, rgba(22, 119, 255, 0.14), transparent 70%),
    radial-gradient(520px 380px at 8% 92%, rgba(22, 119, 255, 0.08), transparent 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 100%);
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(22, 119, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 119, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(720px 420px at 62% 32%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(720px 420px at 62% 32%, #000 0%, transparent 78%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 56px;
}

.hero__title {
  margin-top: 22px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.26;
  letter-spacing: -0.022em;
  /* 避免中文出现「单字成行」：中日韩文本按词断行 + 允许标点避头尾 */
  word-break: break-word;
  overflow-wrap: break-word;
}

.hero__lead {
  margin-top: 22px;
  max-width: 540px;
  color: var(--ink-2);
  font-size: 17.5px;
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero__bullets {
  display: grid;
  gap: 10px;
  margin-top: 30px;
}

.hero__bullets li {
  display: flex;
  gap: 10px;
  color: var(--ink-2);
  font-size: 15.5px;
}

.hero__bullets svg {
  margin-top: 4px;
  color: var(--brand);
}

.hero__visual {
  position: relative;
}

.hero-visual__svg {
  display: block;
  width: 100%;
  height: auto;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 6px;
}

.hero__metrics li {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 6px 18px rgba(15, 38, 71, 0.04);
}

.hero__metrics strong {
  display: block;
  color: var(--brand-600);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero__metrics span {
  color: var(--ink-3);
  font-size: 12.5px;
}

.stat-band {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 10px;
  overflow: hidden;
  border: 1px solid #e6edf7;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #ffffff 0%, #fdfeff 100%);
  box-shadow: 0 1px 2px rgba(15, 38, 71, 0.05), 0 10px 30px rgba(11, 42, 91, 0.1);
}

/* 顶部一条品牌渐变线，让整条有「头」；两端淡出，避免被圆角切成断头 */
.stat-band::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(
    90deg,
    rgba(61, 139, 255, 0) 0%,
    #3d8bff 7%,
    #1677ff 48%,
    #0b5bd3 93%,
    rgba(11, 91, 211, 0) 100%
  );
}

.stat {
  position: relative;
  padding: 28px 30px;
}

/* 列间分隔：上下渐隐的细线，比整条竖线更像「排版」而不是「表格」 */
.stat + .stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 26%;
  bottom: 26%;
  width: 1px;
  background: linear-gradient(180deg, transparent, #dbe5f1 22%, #dbe5f1 78%, transparent);
}

.stat__value {
  color: var(--brand-600);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.stat__label {
  margin-top: 7px;
  color: var(--ink);
  font-size: 15.5px;
  font-weight: 600;
}

.stat__note {
  margin-top: 5px;
  color: var(--ink-3);
  font-size: 13.5px;
  line-height: 1.65;
}

.pillar-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.pillar-card:hover {
  transform: translateY(-3px);
  border-color: var(--brand-100);
  box-shadow: var(--shadow-1);
}

.pillar-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--brand-50);
  color: var(--brand);
}

.pillar-card h3 {
  margin-top: 18px;
  font-size: 20px;
}

.pillar-card p {
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 15.5px;
  line-height: 1.8;
}

.product-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--brand-100);
  box-shadow: var(--shadow-1);
}

.product-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--brand-50);
  color: var(--brand);
}

.product-card__tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
}

.product-card h3 {
  margin-top: 18px;
  font-size: 19.5px;
}

.product-card__desc {
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.75;
}

.feature-list {
  margin-top: 16px;
}

.feature-list li {
  display: flex;
  gap: 9px;
  color: var(--ink-2);
  font-size: 14.8px;
  line-height: 1.7;
}

.feature-list li + li {
  margin-top: 9px;
}

.feature-list svg {
  margin-top: 4px;
  color: var(--brand);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 22px;
  color: var(--brand-600);
  font-size: 14.8px;
  font-weight: 600;
}

.link-arrow svg {
  transition: transform 0.2s var(--ease);
}

.link-arrow:hover svg {
  transform: translateX(3px);
}

.scene-tile {
  display: block;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.scene-tile:hover {
  transform: translateY(-2px);
  border-color: var(--brand-200);
  box-shadow: var(--shadow-1);
}

.scene-tile__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
}

.scene-tile h3 {
  margin-top: 14px;
  font-size: 17.5px;
}

.scene-tile p {
  display: -webkit-box;
  margin-top: 8px;
  overflow: hidden;
  color: var(--ink-3);
  font-size: 14.5px;
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.case-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.case-card:hover {
  border-color: var(--brand-100);
  box-shadow: var(--shadow-1);
}

.case-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.case-card__sector {
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
}

.case-card__scale {
  color: var(--ink-4);
  font-size: 13px;
}

.case-card h3 {
  font-size: 20px;
  line-height: 1.45;
}

.case-card__challenge {
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.75;
}

.case-metrics {
  display: flex;
  gap: 28px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line-2);
}

.case-metrics strong {
  display: block;
  color: var(--brand-600);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.case-metrics span {
  color: var(--ink-3);
  font-size: 13px;
}

.news-list {
  border-top: 1px solid var(--line);
}

.news-row {
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr) 32px;
  gap: 24px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-2);
}

.news-row:hover h3 {
  color: var(--brand-600);
}

.news-row__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.news-row__date {
  color: var(--ink-3);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.news-row__cat {
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 12.5px;
  font-weight: 600;
}

.news-row__body h3 {
  font-size: 18.5px;
  line-height: 1.5;
  letter-spacing: 0;
  transition: color 0.2s var(--ease);
}

.news-row__body p {
  display: -webkit-box;
  margin-top: 8px;
  overflow: hidden;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.75;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.news-row__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-4);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease);
}

.news-row:hover .news-row__arrow {
  color: var(--brand);
  transform: translateX(3px);
}

.cta-band {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 46px 52px;
  border-radius: var(--radius-lg);
  background: linear-gradient(118deg, #0b5bd3 0%, #1677ff 52%, #3d8bff 100%);
  color: #fff;
  box-shadow: 0 20px 50px rgba(11, 91, 211, 0.24);
}

.cta-band::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -110px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 40px rgba(255, 255, 255, 0.05), 0 0 0 90px rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.4;
}

.cta-band p {
  margin-top: 10px;
  max-width: 560px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15.5px;
}

.cta-band__actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  flex: 0 0 auto;
}

.cta-band--soft {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.cta-band--soft::after {
  display: none;
}

.cta-band--soft h2 {
  color: var(--ink);
}

.cta-band--soft p {
  color: var(--ink-3);
}

/* 7. 内页通用 ------------------------------------------------------------ */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 64px;
  background: linear-gradient(180deg, #f5f9ff 0%, #fbfdff 70%, #fff 100%);
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(560px 300px at 50% -10%, rgba(22, 119, 255, 0.16), transparent 70%),
    radial-gradient(420px 260px at 92% 100%, rgba(22, 119, 255, 0.06), transparent 72%);
}

.page-hero__inner {
  position: relative;
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}

.page-hero__title {
  margin-top: 16px;
  font-size: clamp(30px, 3.4vw, 45px);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.page-hero__lead {
  margin-top: 18px;
  color: var(--ink-3);
  font-size: 17px;
  line-height: 1.85;
}

.anchor-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
}

.anchor-chips a {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-2);
  font-size: 14.5px;
  font-weight: 500;
  transition: all 0.2s var(--ease);
}

.anchor-chips a:hover {
  border-color: var(--brand-200);
  background: var(--brand-50);
  color: var(--brand-600);
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 18px;
  border: 1px dashed #dce5f1;
  border-radius: 12px;
  background: #f8fafd;
  color: var(--ink-3);
  font-size: 14px;
  line-height: 1.7;
}

.notice svg {
  margin-top: 2px;
  color: var(--ink-4);
}

.data-table-wrap,
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  text-align: left;
}

.data-table thead th {
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  background: #f8fafe;
  color: var(--ink-3);
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
}

.data-table tbody th,
.data-table tbody td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
  font-size: 15px;
}

.data-table tbody th {
  color: var(--ink);
  font-weight: 600;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: #fbfdff;
}

.data-table thead th.col-mark {
  width: 120px;
  text-align: center;
}

.cell-mark {
  text-align: center;
  font-weight: 700;
}

.cell-mark.is-yes {
  color: var(--ok);
}

.cell-mark.is-no {
  color: var(--ink-4);
  font-weight: 400;
}

.table-note {
  margin-top: 12px;
  color: var(--ink-4);
  font-size: 13.5px;
}

/* 产品页 */
.product-blocks {
  display: grid;
  gap: 20px;
}

.product-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 48px;
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  scroll-margin-top: calc(var(--header-h) + 24px);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.product-block:hover {
  border-color: var(--brand-100);
  box-shadow: var(--shadow-1);
}

.product-block__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--brand-50);
  color: var(--brand);
}

.product-block__tag {
  display: inline-block;
  margin-left: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
  vertical-align: middle;
}

.product-block h2 {
  margin-top: 18px;
  font-size: 25px;
}

.product-block__intro p {
  margin-top: 12px;
  color: var(--ink-3);
  font-size: 15.5px;
  line-height: 1.85;
}

.product-block__features {
  padding: 26px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.product-block__features li {
  display: flex;
  gap: 10px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.7;
}

.product-block__features li + li {
  margin-top: 13px;
}

.product-block__features svg {
  margin-top: 3px;
  color: var(--brand);
}

/* 竞争力页 */
.advantage-list {
  border-top: 1px solid var(--line);
}

.advantage {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 320px;
  gap: 32px;
  padding: 38px 0;
  border-bottom: 1px solid var(--line-2);
}

.advantage__no {
  color: var(--brand-200);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.advantage__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.advantage__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
}

.advantage__head h2 {
  font-size: 21px;
}

.advantage__desc {
  margin-top: 14px;
  max-width: 660px;
  color: var(--ink-3);
  font-size: 15.5px;
  line-height: 1.85;
}

.advantage__points li {
  display: flex;
  gap: 8px;
  color: var(--ink-2);
  font-size: 14.8px;
  line-height: 1.7;
}

.advantage__points li + li {
  margin-top: 10px;
}

.advantage__points svg {
  margin-top: 4px;
  color: var(--brand);
}

/* 场景页 */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.scene-block {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.scene-block__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.scene-block__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
}

.scene-block h2 {
  font-size: 20px;
}

.scene-block__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.scene-block__col {
  padding: 14px 16px;
  border-radius: 12px;
  background: #f7f9fd;
}

.scene-block__col--solution {
  background: var(--brand-50);
}

.scene-block__label {
  display: block;
  color: var(--ink-4);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.scene-block__col--solution .scene-block__label {
  color: var(--brand-600);
}

.scene-block__col p {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.75;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag {
  padding: 4px 10px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  background: #f8fafd;
  color: var(--ink-3);
  font-size: 13px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.flow--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flow__step {
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.flow__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.flow__step h3 {
  margin: 14px 0 8px;
  font-size: 17px;
}

.flow__step p {
  color: var(--ink-3);
  font-size: 14px;
  line-height: 1.7;
}

/* 案例页 */
.case-list {
  display: grid;
  gap: 22px;
}

.case-detail {
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.case-detail__sector {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
}

.case-detail h2 {
  margin-top: 14px;
  font-size: 26px;
  line-height: 1.4;
}

.case-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 12px;
  color: var(--ink-4);
  font-size: 14px;
}

.case-detail__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-detail__body {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  gap: 40px;
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid var(--line-2);
}

.case-detail__col h3 {
  margin-top: 22px;
  font-size: 16px;
}

.case-detail__col h3:first-child {
  margin-top: 0;
}

.case-detail__col p {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.85;
}

.case-detail__side {
  align-self: start;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.case-metrics--stack {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: none;
}

.case-metrics--stack li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.case-metrics--stack li:first-child {
  padding-top: 0;
}

.case-metrics--stack li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.case-quote {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: #fff;
}

.case-quote svg {
  color: var(--brand-200);
}

.case-quote p {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.8;
}

/* 8. 新闻 / 文章 / 联系页 ------------------------------------------------ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}

.filter-chip {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-2);
  font-size: 14.5px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.filter-chip:hover {
  border-color: var(--brand-200);
  color: var(--brand-600);
}

.filter-chip.is-active {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.empty-state {
  padding: 40px 0;
  color: var(--ink-4);
  font-size: 15px;
  text-align: center;
}

.news-row[hidden] {
  display: none;
}

.article {
  padding: 48px 0 0;
}

.article__inner {
  max-width: 820px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-4);
  font-size: 14px;
}

.breadcrumb a:hover {
  color: var(--brand-600);
}

.breadcrumb em {
  color: var(--ink-2);
  font-style: normal;
}

.article__head {
  margin-top: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line-2);
}

.article__cat {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
}

.article__head h1 {
  margin-top: 14px;
  font-size: clamp(28px, 3.1vw, 38px);
  line-height: 1.4;
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 16px;
  color: var(--ink-4);
  font-size: 14px;
}

.article__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article__body {
  padding-top: 30px;
}

.article__body p {
  margin-bottom: 20px;
  color: var(--ink-2);
  font-size: 16.5px;
  line-height: 1.95;
}

.article__body h2 {
  margin: 34px 0 14px;
  font-size: 21px;
}

.article__body ul {
  margin: 0 0 22px;
  padding-left: 4px;
}

.article__body li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 18px;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.85;
}

.article__body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-200);
}

.article__body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: var(--bg-soft);
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.9;
}

.article__foot {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.article__nav {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}

.article__nav span {
  display: block;
  color: var(--ink-4);
  font-size: 13px;
}

.article__nav strong {
  display: block;
  max-width: 240px;
  margin-top: 4px;
  overflow: hidden;
  color: var(--ink-2);
  font-size: 14.5px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article__nav a:hover strong {
  color: var(--brand-600);
}

.channel-card {
  display: flex;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: all 0.2s var(--ease);
}

.channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--brand-200);
  box-shadow: var(--shadow-1);
}

.channel-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
}

.channel-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-3);
}

.channel-card__value {
  margin-top: 6px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
  /* 卡宽变窄时优先在 @ <wbr> 处断行，别把邮箱切成 "163.c / om" */
  overflow-wrap: break-word;
}

.channel-card__note {
  margin-top: 2px;
  color: var(--ink-4);
  font-size: 13px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 48px;
}

.contact-form__title {
  font-size: 26px;
}

.contact-form__lead {
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.8;
}

.contact-form {
  margin-top: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.form-note {
  flex: 1 1 240px;
  color: var(--ink-4);
  font-size: 13px;
  line-height: 1.7;
}

.form-status {
  min-height: 22px;
  margin-top: 14px;
  font-size: 14.5px;
}

.form-status.is-ok {
  color: var(--ok);
}

.form-status.is-error {
  color: var(--danger);
}

.contact-side {
  align-self: start;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
}

.contact-side h3 {
  font-size: 18px;
}

.contact-side__list {
  margin-top: 12px;
}

.contact-side__list div {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.contact-side__list dt {
  color: var(--ink-4);
  font-size: 13px;
}

.contact-side__list dd {
  margin-top: 4px;
  color: var(--ink-2);
  font-size: 14.8px;
  line-height: 1.7;
}

.contact-side__map {
  position: relative;
  height: 158px;
  margin-top: 20px;
  overflow: hidden;
  border: 1px solid #e1eaf8;
  border-radius: 14px;
  background: linear-gradient(180deg, #eaf2fe 0%, #f8fbff 100%);
}

.map-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(22, 119, 255, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 119, 255, 0.1) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(120px 90px at 50% 50%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120px 90px at 50% 50%, #000 20%, transparent 78%);
}

.map-pin {
  position: absolute;
  left: 50%;
  top: 44%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.35);
}

.map-label {
  position: absolute;
  left: 12px;
  bottom: 10px;
  color: var(--ink-3);
  font-size: 12.5px;
}

.contact-side__note {
  margin-top: 12px;
  color: var(--ink-4);
  font-size: 13px;
  line-height: 1.7;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq__item {
  border-bottom: 1px solid var(--line-2);
}

.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 16.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__icon {
  color: var(--ink-4);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
}

.faq__item[open] .faq__icon {
  transform: rotate(45deg);
  color: var(--brand);
}

.faq__item p {
  padding: 0 0 20px;
  color: var(--ink-3);
  font-size: 15.5px;
  line-height: 1.85;
}

/* 关于页 */
.about-story {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  gap: 64px;
  align-items: start;
}

.about-story__title {
  font-size: clamp(26px, 2.4vw, 32px);
}

.about-story__text p {
  margin-top: 18px;
  color: var(--ink-2);
  font-size: 16.5px;
  line-height: 1.95;
}

.about-facts {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
}

.about-facts__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.about-facts__item:first-child {
  padding-top: 0;
}

.about-facts__item:last-child {
  border-bottom: none;
}

.about-facts dt {
  color: var(--ink-4);
  font-size: 13.5px;
}

.about-facts dd {
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  text-align: right;
}

.about-facts__badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--brand-600);
  font-size: 14.5px;
  font-weight: 600;
}

.value-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.value-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
}

.value-card h3 {
  margin-top: 16px;
  font-size: 18px;
}

.value-card p {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 14.5px;
  line-height: 1.8;
}

.timeline {
  display: grid;
  gap: 0;
}

.timeline__item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  padding-bottom: 30px;
}

.timeline__date {
  padding-top: 2px;
  color: var(--brand-600);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.timeline__content {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--line);
}

.timeline__item:last-child .timeline__content {
  border-left-color: transparent;
}

.timeline__content::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 5px;
  width: 14px;
  height: 14px;
  border: 3px solid #fff;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 1px var(--brand-200);
}

.timeline__content h3 {
  font-size: 18px;
}

.timeline__content p {
  margin-top: 6px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.8;
}

.team-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.team-card h3 {
  font-size: 18px;
}

.team-card p {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 14.5px;
  line-height: 1.8;
}

/* 9. 动效 ---------------------------------------------------------------- */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.62s var(--ease) var(--delay, 0ms), transform 0.62s var(--ease) var(--delay, 0ms);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.hero-visual__pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: pulse-ring 2.8s ease-out infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  70% {
    transform: scale(3.4);
    opacity: 0;
  }
  100% {
    transform: scale(3.4);
    opacity: 0;
  }
}

/* 9.1 视觉细节增强（字号体系上调后的配套质感调整） ----------------------- */

/* 中文标题：收紧字距；现代浏览器按平衡断行，避免末行只剩一两个字 */
h1,
h2,
h3,
h4 {
  letter-spacing: -0.015em;
  text-wrap: balance;
}

/* 字号变大后正文行高略放宽，长段落呼吸感更好 */
body {
  line-height: 1.75;
}

/* 数字统一等宽：指标、日期列不会因字形宽度不同而错位 */
.stat__value,
.hero__metrics strong,
.case-metrics strong,
.news-row__date {
  font-variant-numeric: tabular-nums;
}

/* 小标题（非胶囊版）前置一根短竖条，建立视觉锚点 */
.eyebrow:not(.eyebrow--pill) {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.eyebrow:not(.eyebrow--pill)::before {
  content: '';
  width: 3px;
  height: 0.92em;
  border-radius: 2px;
  background: currentColor;
  opacity: 0.5;
}

/* 说明段落：避免末行只剩一两个字（不支持时无副作用） */
.section-head__lead,
.page-hero__lead,
.hero__lead,
.contact-form__lead,
.cta-band p {
  text-wrap: pretty;
}

/* —— 卡片：去掉「贴纸感」，统一为「细边 + 极轻底影 + 悬停浮起」 —— */
.pillar-card,
.product-card,
.scene-tile,
.case-card,
.channel-card,
.flow__step,
.scene-block,
.product-block,
.case-detail {
  box-shadow: 0 1px 1px rgba(15, 38, 71, 0.02);
}

/* 主卡片悬停时的双层投影，比单层更「离地」 */
.pillar-card:hover,
.product-card:hover,
.scene-tile:hover,
.case-card:hover,
.channel-card:hover {
  box-shadow: 0 2px 4px rgba(15, 38, 71, 0.03), 0 18px 38px rgba(15, 38, 71, 0.09);
}

/* 卡片顶部品牌渐变条，悬停自左向右展开 */
.pillar-card,
.product-card {
  position: relative;
  overflow: hidden;
}

.pillar-card::before,
.product-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, #3d8bff 0%, #1677ff 55%, #0b5bd3 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.34s var(--ease);
}

.pillar-card:hover::before,
.product-card:hover::before {
  transform: scaleX(1);
}

/* 图标底板：纯色 → 微渐变 + 内描边，层次更细腻 */
.pillar-card__icon,
.product-card__icon,
.product-block__icon,
.advantage__icon,
.scene-tile__icon,
.scene-block__icon,
.channel-card__icon {
  background: linear-gradient(160deg, #f4f9ff 0%, var(--brand-50) 55%, #e7f1ff 100%);
  box-shadow: inset 0 0 0 1px rgba(22, 119, 255, 0.1);
  color: var(--brand-600);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.pillar-card:hover .pillar-card__icon,
.product-card:hover .product-card__icon,
.scene-tile:hover .scene-tile__icon,
.channel-card:hover .channel-card__icon {
  transform: scale(1.06) rotate(-2deg);
  box-shadow: inset 0 0 0 1px rgba(22, 119, 255, 0.18), 0 8px 18px rgba(22, 119, 255, 0.16);
}

/* —— 按钮：按下回弹，主按钮加一层顶部高光 —— */
.btn:active {
  transform: translateY(0) scale(0.985);
}

.btn--primary {
  position: relative;
  overflow: hidden;
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0 0 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0));
  pointer-events: none;
}

/* —— 导航：当前项加内描边，悬停轻微上移 —— */
.nav__link {
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.nav__link:hover {
  transform: translateY(-1px);
}

.nav__link.is-active {
  background: var(--brand-100);
  box-shadow: inset 0 0 0 1px rgba(22, 119, 255, 0.16);
}

/* —— 表格：斑马纹 + 行高亮，长表不再「一片糊」 —— */
.data-table tbody tr:nth-child(even) {
  background: #fbfcff;
}

.data-table tbody tr:hover {
  background: rgba(22, 119, 255, 0.05);
}

.data-table thead th {
  letter-spacing: 0.02em;
}

/* —— 标签 / 胶囊：随字号加大内边距，避免文字贴边 —— */
.product-card__tag,
.product-block__tag,
.case-card__sector,
.case-detail__sector,
.article__cat,
.news-row__cat {
  padding: 4px 10px;
}

.tag {
  padding: 5px 11px;
}

/* —— 页脚链接：下划线渐入 —— */
.footer__links a,
.footer__contact a {
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}

.footer__links a:hover,
.footer__contact a:hover {
  text-decoration-color: rgba(255, 255, 255, 0.5);
}

/* —— 首屏指标卡：悬停微浮起 —— */
.hero__metrics span {
  display: block;
  text-wrap: balance; /* 窄屏标签折行时均分，避免末行只剩一个字 */
}

.hero__metrics li {
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease),
    border-color 0.22s var(--ease);
}

.hero__metrics li:hover {
  transform: translateY(-2px);
  border-color: var(--brand-100);
  box-shadow: 0 10px 24px rgba(15, 38, 71, 0.07);
}

/* —— 表单控件：悬停给出边框反馈，聚焦更明确 —— */
.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: #c9d7e8;
}

/* —— 章节标题区留白微调 —— */
.section-head {
  margin-bottom: 48px;
}

/* —— 滚动条（仅精确指针设备，触屏不受影响） —— */
@media (hover: hover) and (pointer: fine) {
  html {
    scrollbar-width: thin;
    scrollbar-color: #cbd7e7 transparent;
  }

  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }

  ::-webkit-scrollbar-track {
    background: transparent;
  }

  ::-webkit-scrollbar-thumb {
    border: 3px solid #fff;
    border-radius: 999px;
    background: #cbd7e7;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #b2c3d9;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-visual__pulse {
    animation: none;
  }

  .btn,
  .pillar-card,
  .product-card,
  .scene-tile {
    transition: none;
  }
}

/* 10. 响应式 ------------------------------------------------------------- */
@media (max-width: 1180px) {
  .nav,
  .nav__cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header__actions {
    margin-left: auto;
  }

  .hero__inner {
    gap: 40px;
  }
}

@media (max-width: 1024px) {
  .section {
    padding: 76px 0;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero__lead {
    max-width: 640px;
  }

  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat:nth-child(odd)::before {
    display: none;
  }

  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .product-block {
    grid-template-columns: 1fr;
    gap: 26px;
    padding: 32px;
  }

  .advantage {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 20px;
  }

  .advantage__points {
    grid-column: 2;
  }

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

  .flow,
  .flow--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-story {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .case-detail__body {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 64px;
  }

  /* 页头变矮，lockup 同步收一档，避免压住抽屉按钮 */
  .site-header .brand__lockup {
    height: 36px;
  }

  .container {
    padding-inline: 20px;
  }

  .section {
    padding: 62px 0;
  }

  .section--tight {
    padding: 40px 0;
  }

  .hero {
    padding: 48px 0 44px;
  }

  .hero__title {
    margin-top: 18px;
  }

  .page-hero {
    padding: 60px 0 46px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
  }

  .section-head--center {
    align-items: center;
  }

  .section-head__cta {
    align-self: flex-start;
  }

  .section-head--center .section-head__cta {
    align-self: center;
  }

  .news-row {
    grid-template-columns: minmax(0, 1fr) 24px;
    row-gap: 10px;
    padding: 22px 0;
  }

  .news-row__meta {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    grid-column: 1 / -1;
  }

  .news-row__body {
    grid-column: 1;
  }

  .news-row__arrow {
    align-self: center;
    grid-column: 2;
    grid-row: 2;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 26px;
  }

  .cta-band__actions {
    width: 100%;
  }

  .case-detail,
  .case-card,
  .product-card,
  .pillar-card,
  .scene-block,
  .product-block {
    padding: 24px;
  }

  .advantage {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 28px 0;
  }

  .advantage__no {
    font-size: 28px;
  }

  .advantage__points {
    grid-column: 1;
  }

  .article {
    padding-top: 32px;
  }

  .article__foot {
    flex-direction: column-reverse;
    align-items: flex-start;
  }

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

  .timeline__item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .timeline__content {
    padding-left: 20px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .hero__metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .hero__metrics li {
    padding: 10px;
  }

  .hero__metrics strong {
    font-size: 17px;
  }

  .hero__metrics span {
    font-size: 11.5px;
  }

  .stat-band {
    grid-template-columns: 1fr;
    padding: 4px;
  }

  .stat {
    padding: 18px 20px;
  }

  .stat::before {
    display: none;
  }

  .stat + .stat {
    border-top: 1px solid var(--line);
  }

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

  .scene-block__cols {
    grid-template-columns: 1fr;
  }

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

  .case-metrics {
    gap: 18px;
  }

  .case-metrics strong {
    font-size: 19px;
  }

  .article__body p {
    font-size: 16px;
  }

  .btn--lg {
    width: 100%;
  }

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

  .cta-band__actions .btn {
    flex: 1 1 100%;
  }
}