:root {
  --primary: #0366ff;
  --primary-dark: #004fd2;
  --primary-soft: #eaf2ff;
  --ink: #182033;
  --text: #4e5969;
  --muted: #7f8a9e;
  --line: #e7ebf2;
  --surface: #f7f9fc;
  --white: #fff;
  --success: #0b9f6e;
  --shadow: 0 16px 45px rgba(23, 43, 77, .1);
  --shadow-soft: 0 8px 28px rgba(23, 43, 77, .08);
  --radius: 10px;
  --container: 1200px;
  --header-h: 72px;
  --ease: .28s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

html[lang="en"] body {
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

h1,
h2,
h3,
h4 {
  color: var(--ink);
  line-height: 1.25;
}

p {
  margin-block-end: 1rem;
}

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.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;
}

.skip-link {
  position: fixed;
  inset-block-start: 8px;
  inset-inline-start: 8px;
  z-index: 9999;
  transform: translateY(-150%);
  padding: 9px 14px;
  color: #fff;
  background: var(--primary);
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(3, 102, 255, .35);
  outline-offset: 3px;
}

/* 公共导航 */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--ease), border-color var(--ease);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 5px 22px rgba(23, 43, 77, .08);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  transform: rotate(45deg);
  border: 1px solid rgba(3, 102, 255, .25);
  border-radius: 9px;
  background: linear-gradient(145deg, var(--primary), #5da0ff);
  box-shadow: 0 7px 18px rgba(3, 102, 255, .24);
}

.brand-mark i {
  position: absolute;
  width: 5px;
  height: 18px;
  background: #fff;
  border-radius: 3px;
  transform: rotate(-45deg);
}

.brand-mark i:first-child {
  translate: -7px 3px;
  height: 11px;
  opacity: .72;
}

.brand-mark i:last-child {
  translate: 7px -3px;
  height: 13px;
  opacity: .86;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
}

.brand-copy strong {
  font-size: 17px;
  letter-spacing: .05em;
  color: var(--ink);
}

.brand-copy small {
  margin-block-start: 4px;
  font-size: 9px;
  letter-spacing: .08em;
  color: var(--muted);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-inline-start: auto;
}

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

.language-switch {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  color: var(--muted);
  background: #f5f8fc;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.language-switch a {
  min-width: 18px;
  padding-block: 5px;
  text-align: center;
  transition: color var(--ease);
}

.language-switch a:hover,
.language-switch a:focus-visible,
.language-switch a[aria-current="page"] {
  color: var(--primary);
  font-weight: 700;
}

.nav-link,
.nav-trigger {
  height: 72px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding-inline: 13px;
  border: 0;
  color: #596276;
  background: transparent;
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--ease);
}

.nav-link:hover,
.nav-link.is-active,
.nav-trigger:hover,
.nav-group.is-active>.nav-trigger {
  color: var(--primary);
}

.nav-link.is-active,
.nav-group.is-active>.nav-trigger {
  position: relative;
}

.nav-link.is-active::after,
.nav-group.is-active>.nav-trigger::before {
  content: "";
  position: absolute;
  inset-inline: 50% auto;
  inset-block-end: 10px;
  width: 20px;
  height: 2px;
  translate: -50% 0;
  background: var(--primary);
  border-radius: 2px;
}

.nav-group {
  position: relative;
}

.nav-trigger::after {
  content: "";
  width: 6px;
  height: 6px;
  border-inline-end: 1px solid currentColor;
  border-block-end: 1px solid currentColor;
  rotate: 45deg;
  translate: 0 -2px;
  transition: rotate var(--ease);
}

.nav-group:hover .nav-trigger::after,
.nav-trigger[aria-expanded="true"]::after {
  rotate: 225deg;
  translate: 0 2px;
}

.nav-menu {
  position: absolute;
  inset-block-start: 62px;
  inset-inline-start: 50%;
  min-width: 176px;
  padding: 8px;
  translate: -50% 8px;
  opacity: 0;
  visibility: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: opacity var(--ease), translate var(--ease), visibility var(--ease);
}

.nav-group:hover .nav-menu,
.nav-group:focus-within .nav-menu,
.nav-menu.is-open {
  opacity: 1;
  visibility: visible;
  translate: -50% 0;
}

.nav-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
}

.nav-menu a:hover,
.nav-menu a.is-active {
  color: var(--primary);
  background: var(--primary-soft);
}

.header-cta {
  margin-inline-start: 9px;
  padding: 9px 16px;
  color: #fff;
  background: var(--primary);
  border-radius: 6px;
  font-size: 13px;
  box-shadow: 0 7px 18px rgba(3, 102, 255, .2);
  transition: background var(--ease), transform var(--ease);
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
}

.menu-toggle i {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
  transition: var(--ease);
}

/* 版块与通用组件 */
main {
  padding-block-start: var(--header-h);
  overflow: hidden;
}

.section {
  padding-block: 92px;
}

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

.section--compact {
  padding-block: 68px;
}

.section-heading {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-heading .eyebrow,
.eyebrow {
  display: block;
  margin-block-end: 10px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section-heading h2 {
  margin-block-end: 14px;
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 600;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 22px;
  border: 1px solid var(--primary);
  border-radius: 6px;
  color: #fff;
  background: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: transform var(--ease), color var(--ease), background var(--ease), box-shadow var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
  background: var(--primary-dark);
  box-shadow: 0 10px 22px rgba(3, 102, 255, .2);
}

.btn--ghost {
  color: var(--primary);
  background: transparent;
}

.btn--ghost:hover {
  color: #fff;
}

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

.btn--light:hover {
  color: var(--primary);
  background: #fff;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 28px;
}

.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));
}

.card {
  height: 100%;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 0 rgba(23, 43, 77, .01);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(3, 102, 255, .2);
  box-shadow: var(--shadow-soft);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-block-end: 20px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 10px;
  font-weight: 800;
  font-size: 19px;
}

.card h3 {
  margin-block-end: 11px;
  font-size: 19px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  margin-block-start: 18px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}

.text-link::after {
  content: "→";
  margin-inline-start: 7px;
  transition: translate var(--ease);
}

.text-link:hover::after {
  translate: 4px 0;
}

.tag {
  display: inline-flex;
  padding: 5px 10px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 99px;
  font-size: 12px;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  align-items: center;
  background: radial-gradient(circle at 77% 38%, rgba(3, 102, 255, .18), transparent 24%), linear-gradient(125deg, #f7fbff 0%, #fff 48%, #eef5ff 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .42;
  background-image: linear-gradient(rgba(3, 102, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(3, 102, 255, .045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to right, transparent 5%, #000 85%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 64px;
  padding-block: 70px 125px;
}

.hero-copy h1 {
  max-width: 650px;
  margin-block-end: 22px;
  font-size: clamp(42px, 5vw, 68px);
  letter-spacing: -.04em;
}

.hero-copy h1 span {
  color: var(--primary);
}

.hero-copy p {
  max-width: 590px;
  margin: 0;
  color: #657086;
  font-size: 17px;
}

.trust-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-block-start: 26px;
  color: var(--muted);
  font-size: 13px;
}

.trust-note i {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: var(--success);
  background: #e7f8f2;
  border-radius: 50%;
  font-style: normal;
}

.visual-placeholder {
  position: relative;
  min-height: 390px;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background: linear-gradient(140deg, #061b43, #073a94 56%, #1f7cff);
  border-radius: 18px;
  box-shadow: 0 28px 70px rgba(3, 62, 158, .25);
}

.visual-placeholder::before,
.visual-placeholder::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
}

.visual-placeholder::before {
  width: 310px;
  height: 310px;
  inset-inline-end: -70px;
  inset-block-start: -80px;
  box-shadow: 0 0 0 42px rgba(255, 255, 255, .035), 0 0 0 84px rgba(255, 255, 255, .025);
}

.visual-placeholder::after {
  width: 180px;
  height: 180px;
  inset-inline-start: -65px;
  inset-block-end: -65px;
}

.placeholder-device {
  width: 156px;
  height: 238px;
  position: relative;
  display: grid;
  place-items: center;
  border: 8px solid rgba(255, 255, 255, .9);
  border-radius: 42px;
  rotate: -9deg;
  background: linear-gradient(160deg, rgba(255, 255, 255, .32), rgba(255, 255, 255, .05));
  box-shadow: 18px 24px 50px rgba(0, 0, 0, .25), inset 0 0 38px rgba(255, 255, 255, .18);
}

.placeholder-device--earphone {
  height: 190px;
  border-radius: 80px;
  rotate: 8deg;
}

.placeholder-device span {
  font-weight: 700;
  font-size: 13px;
  text-align: center;
}

.visual-label {
  position: absolute;
  inset-inline: 22px;
  inset-block-end: 18px;
  padding-block-start: 13px;
  border-block-start: 1px solid rgba(255, 255, 255, .22);
  font-size: 12px;
  color: rgba(255, 255, 255, .78);
}

/* 首页真实配图 */
.home-visual {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #061b43;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.home-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.home-visual--hero {
  border-radius: 18px;
  box-shadow: 0 28px 70px rgba(3, 62, 158, .25);
}

.stats-wrap {
  position: relative;
  z-index: 3;
  margin-block-start: -70px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 22px 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat {
  padding: 13px 25px;
  border-inline-end: 1px solid var(--line);
}

.stat:last-child {
  border: 0;
}

.stat strong {
  display: block;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.2;
}

.stat span {
  color: var(--muted);
  font-size: 13px;
}

.page-hero {
  position: relative;
  min-height: 370px;
  display: grid;
  align-items: center;
  color: #fff;
  background: linear-gradient(115deg, #071a3b, #073f9e 65%, #1677ff);
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  inset-inline-end: -100px;
  inset-block-start: -190px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  box-shadow: 0 0 0 65px rgba(255, 255, 255, .035), 0 0 0 130px rgba(255, 255, 255, .025);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  max-width: 760px;
  margin-block-end: 15px;
  color: #fff;
  font-size: clamp(36px, 5vw, 54px);
}

.page-hero p {
  max-width: 690px;
  margin: 0;
  color: rgba(255, 255, 255, .76);
  font-size: 16px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-block-end: 22px;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
}

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

.breadcrumb span::before {
  content: "/";
  margin-inline-end: 8px;
  opacity: .55;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: clamp(45px, 8vw, 100px);
}

/* 首页方案图文占比：只需修改这四个数值，不需要调整网格定位规则 */
.page-home {
  --home-right-image-ratio: 1.3fr;
  --home-right-copy-ratio: .7fr;
  --home-left-image-ratio: 1.3fr;
  --home-left-copy-ratio: .7fr;
}

/* 通用图文比例变量：适用于 home-visual、contact-map 等任意图片容器 */
.split--image-right,
.split--image-left,
.page-contact .section--soft .split {
  --split-image-ratio: 1.3fr;
  --split-copy-ratio: .7fr;
}

.page-home .split--image-right {
  --split-image-ratio: var(--home-right-image-ratio);
  --split-copy-ratio: var(--home-right-copy-ratio);
}

.page-home .split--image-left {
  --split-image-ratio: var(--home-left-image-ratio);
  --split-copy-ratio: var(--home-left-copy-ratio);
}

@media (min-width: 769px) {
  .split--image-right,
  .page-contact .section--soft .split {
    grid-template-columns:
      minmax(0, var(--split-copy-ratio))
      minmax(0, var(--split-image-ratio));
  }

  .split--image-right> :last-child,
  .page-contact .section--soft .split> :last-child {
    grid-column: 2;
    grid-row: 1;
  }

  .split--image-right> :first-child,
  .page-contact .section--soft .split> :first-child {
    grid-column: 1;
    grid-row: 1;
  }

  .split--image-left {
    grid-template-columns:
      minmax(0, var(--split-image-ratio))
      minmax(0, var(--split-copy-ratio));
  }

  .split--image-left> :last-child {
    grid-column: 1;
    grid-row: 1;
  }

  .split--image-left> :first-child {
    grid-column: 2;
    grid-row: 1;
  }
}

.split+.split {
  margin-block-start: 80px;
}

.split--reverse> :first-child {
  order: 2;
}

.split h2 {
  margin-block-end: 18px;
  font-size: clamp(28px, 3vw, 40px);
}

.split p {
  color: var(--muted);
}

.media-placeholder {
  position: relative;
  min-height: 350px;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 30px;
  color: #fff;
  background: linear-gradient(145deg, #0a2554, #075edc 65%, #3b91ff);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.media-placeholder::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 42px solid rgba(255, 255, 255, .06);
  border-radius: 50%;
  inset-inline-end: -70px;
  inset-block-start: -70px;
}

.media-placeholder b {
  position: relative;
  max-width: 270px;
  font-size: 16px;
}

.media-placeholder b::before {
  content: "AI";
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 14px;
  font-size: 14px;
  letter-spacing: .1em;
}

.media-placeholder small {
  position: absolute;
  inset-inline: 18px;
  inset-block-end: 16px;
  color: rgba(255, 255, 255, .66);
  font-size: 11px;
}

/* 解决方案页真实产品组合视觉 */
.solution-visual {
  position: relative;
  min-width: 0;
  min-height: 430px;
  margin: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 16px;
  overflow: hidden;
  padding: 22px;
  color: #fff;
  background:
    linear-gradient(rgba(62, 153, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 153, 255, .08) 1px, transparent 1px),
    radial-gradient(circle at 75% 18%, rgba(43, 157, 255, .38), transparent 34%),
    linear-gradient(145deg, #04132f, #082e6f 60%, #075edc);
  background-size: 30px 30px, 30px 30px, auto, auto;
  border: 1px solid rgba(116, 190, 255, .28);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(3, 42, 111, .24);
}

.solution-visual--audio,
.solution-visual--audio-feature {
  background:
    linear-gradient(rgba(88, 136, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 136, 255, .07) 1px, transparent 1px),
    radial-gradient(circle at 77% 14%, rgba(89, 98, 255, .42), transparent 34%),
    linear-gradient(145deg, #050d25, #10285d 58%, #315cc7);
  background-size: 30px 30px, 30px 30px, auto, auto;
}

.solution-visual__glow {
  position: absolute;
  width: 260px;
  height: 260px;
  inset-inline-end: -90px;
  inset-block-start: -110px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  box-shadow: 0 0 0 44px rgba(255, 255, 255, .035), 0 0 0 88px rgba(255, 255, 255, .025);
}

.solution-visual__stage {
  position: relative;
  z-index: 1;
  min-height: 300px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(130px, .8fr);
  gap: 12px;
}

.solution-visual__rail {
  min-width: 0;
  display: grid;
  grid-auto-rows: minmax(0, 1fr);
  gap: 12px;
}

.solution-product {
  min-width: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  overflow: hidden;
  background: rgba(255, 255, 255, .11);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 14px;
  box-shadow: inset 0 1px rgba(255, 255, 255, .12);
  backdrop-filter: blur(8px);
}

.solution-product__image {
  min-height: 0;
  overflow: hidden;
  background: #f7f9fc;
}

.solution-product__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-product__image--lower img,
.solution-product__image--right img {
  object-fit: cover;
}

.solution-product__image--lower img {
  object-position: 68% 78%;
  transform: scale(1.52);
  transform-origin: 68% 78%;
}

.solution-product__image--right img {
  object-position: 78% 62%;
  transform: scale(1.42);
  transform-origin: 78% 62%;
}

.solution-product__copy {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
}

.solution-product__copy strong {
  color: #fff;
  font-size: 14px;
  letter-spacing: .03em;
}

.solution-product__copy span {
  overflow: hidden;
  color: rgba(255, 255, 255, .7);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.solution-product--primary .solution-product__copy {
  padding: 13px 15px;
}

.solution-product--primary .solution-product__copy strong {
  font-size: 17px;
}

.solution-visual figcaption {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 9px;
}

.solution-visual figcaption>span {
  color: rgba(255, 255, 255, .58);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .16em;
}

.solution-visual figcaption ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.solution-visual figcaption li {
  padding: 6px 9px;
  color: rgba(255, 255, 255, .86);
  background: rgba(7, 33, 78, .66);
  border: 1px solid rgba(126, 196, 255, .25);
  border-radius: 999px;
  font-size: 10px;
  line-height: 1;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  counter-reset: step;
}

.step {
  position: relative;
  padding: 0 28px;
  text-align: center;
  counter-increment: step;
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  inset-block-start: 24px;
  inset-inline-start: calc(50% + 27px);
  width: calc(100% - 54px);
  border-block-start: 1px dashed #aac9fa;
}

.step-number {
  position: relative;
  z-index: 1;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  color: var(--primary);
  background: #fff;
  border: 1px solid #bcd5fd;
  border-radius: 50%;
  font-weight: 700;
}

.step-number::before {
  content: counter(step, decimal-leading-zero);
}

.step h3 {
  margin-block-end: 8px;
  font-size: 16px;
}

.step p {
  color: var(--muted);
  font-size: 13px;
}

.logo-wall {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px 16px;
  padding: 34px 26px;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 16%, rgba(3, 102, 255, .1), transparent 25%),
    radial-gradient(circle at 92% 82%, rgba(0, 194, 255, .08), transparent 24%),
    linear-gradient(135deg, #f8fbff 0%, #fff 48%, #f5f9ff 100%);
  border: 1px solid rgba(3, 102, 255, .1);
  border-radius: 28px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 24px 60px rgba(23, 54, 104, .07);
  isolation: isolate;
}

.logo-wall::before,
.logo-wall::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(3, 102, 255, .13);
  border-radius: 50%;
}

.logo-wall::before {
  width: 250px;
  height: 250px;
  inset-block-start: -185px;
  inset-inline-end: 7%;
  box-shadow: 0 0 0 34px rgba(3, 102, 255, .025), 0 0 0 68px rgba(3, 102, 255, .018);
}

.logo-wall::after {
  width: 170px;
  height: 170px;
  inset-block-end: -132px;
  inset-inline-start: 4%;
  box-shadow: 0 0 0 28px rgba(0, 194, 255, .025);
}

.logo-chip {
  --partner-offset: 0px;
  position: relative;
  flex: 0 1 calc((100% - 80px) / 6);
  min-width: 150px;
  min-height: 116px;
  display: grid;
  place-items: center;
  padding: 20px 12px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .98), rgba(247, 251, 255, .94));
  border: 1px solid rgba(136, 169, 218, .32);
  border-radius: 26px 8px 26px 8px;
  box-shadow: 0 12px 28px rgba(24, 61, 118, .08), inset 0 1px 0 #fff;
  overflow: hidden;
  transform: translateY(var(--partner-offset));
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.logo-chip:nth-child(even) {
  border-radius: 8px 26px 8px 26px;
}

.logo-chip:nth-child(6n + 2),
.logo-chip:nth-child(6n + 5) {
  --partner-offset: 7px;
}

.logo-chip::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 22px;
  height: 3px;
  background: linear-gradient(90deg, transparent, #0366ff 42%, #39c8ff 62%, transparent);
  border-radius: 0 0 4px 4px;
  opacity: .68;
}

.logo-chip::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  inset-block-start: 15px;
  inset-inline-end: 16px;
  background: #fff;
  border: 2px solid rgba(3, 102, 255, .48);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(3, 102, 255, .06);
}

.logo-chip:hover {
  transform: translateY(calc(var(--partner-offset) - 6px));
  border-color: rgba(3, 102, 255, .42);
  box-shadow: 0 20px 42px rgba(3, 83, 196, .15), inset 0 1px 0 #fff;
}

.partner-logo-frame {
  position: relative;
  width: min(150px, 100%);
  height: 70px;
  display: block;
  overflow: hidden;
}

.partner-logo-frame img {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  width: 170px;
  max-width: none;
  height: auto;
  transform: translate(-50%, -50%);
  user-select: none;
}

.cta {
  position: relative;
  overflow: hidden;
  padding: 58px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: #fff;
  background: linear-gradient(115deg, #071b42, #075ecf);
  border-radius: 14px;
}

.cta::after {
  content: "";
  position: absolute;
  width: 290px;
  height: 290px;
  inset-inline-end: -90px;
  border: 54px solid rgba(255, 255, 255, .05);
  border-radius: 50%;
}

.cta>* {
  position: relative;
  z-index: 1;
}

.cta h2 {
  margin-block-end: 10px;
  color: #fff;
  font-size: clamp(26px, 3vw, 38px);
}

.cta p {
  max-width: 650px;
  margin: 0;
  color: rgba(255, 255, 255, .72);
}

.product-card {
  overflow: hidden;
  padding: 0;
}

.product-card .media-placeholder {
  min-height: 250px;
  border-radius: 9px 9px 0 0;
  box-shadow: none;
}

.product-photo {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #f3f5f8;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.product-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform .45s ease;
}

.product-photo:hover img {
  transform: scale(1.025);
}

.product-card .product-photo {
  border-radius: 9px 9px 0 0;
  box-shadow: none;
}

.product-card .product-photo img {
  aspect-ratio: 1;
  object-position: center;
}

/* 示例项目横幅配图 */
.case-photo {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #061b43;
  border-radius: 9px 9px 0 0;
}

.case-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .45s ease;
}

.case-card:hover .case-photo img {
  transform: scale(1.018);
}

.case-card .product-card-body {
  min-height: 230px;
}

/* 每组案例后的产品中心引导 */
.case-product-guide {
  margin-block-start: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 24px 28px;
  background: linear-gradient(115deg, #f7faff, #eef5ff);
  border: 1px solid rgba(3, 102, 255, .14);
  border-radius: var(--radius);
}

.case-product-guide .eyebrow {
  margin-block-end: 5px;
  font-size: 10px;
}

.case-product-guide h3 {
  margin-block-end: 5px;
  font-size: 19px;
}

.case-product-guide p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.case-product-guide .btn {
  flex: 0 0 auto;
}

.product-carousel {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #f3f5f8;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  touch-action: pan-y;
}

.product-carousel-viewport {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: grab;
  user-select: none;
}

.product-carousel.is-dragging .product-carousel-viewport {
  cursor: grabbing;
}

.product-carousel-slide {
  width: 100%;
  height: 100%;
  margin: 0;
}

.product-carousel-slide[hidden] {
  display: none;
}

.product-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.product-carousel-dots {
  position: absolute;
  z-index: 3;
  inset-inline: 18px;
  inset-block-end: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.product-carousel-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .9);
  background: rgba(8, 20, 42, .42);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .18);
  transition: width var(--ease), background var(--ease);
}

.product-carousel-dots button[aria-current="true"] {
  width: 24px;
  background: #fff;
  border-radius: 6px;
}

.product-card-body {
  padding: 26px;
}

.product-card-body h2,
.product-card-body h3 {
  margin-block: 12px 9px;
  font-size: 20px;
}

.product-card-body p {
  min-height: 48px;
}

.card.related-product-card {
  min-height: 230px;
  display: grid;
  grid-template-columns: minmax(170px, .82fr) minmax(0, 1.18fr);
  padding: 0;
  overflow: hidden;
}

.related-product-media {
  position: relative;
  min-width: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 16%, rgba(3, 102, 255, .12), transparent 34%),
    linear-gradient(145deg, #f7faff, #eef4fc);
  border-inline-end: 1px solid rgba(124, 157, 207, .2);
}

.related-product-media::after {
  content: "";
  position: absolute;
  width: 88px;
  height: 88px;
  inset-inline-end: -48px;
  inset-block-end: -48px;
  border: 1px solid rgba(3, 102, 255, .15);
  border-radius: 50%;
  box-shadow: 0 0 0 18px rgba(3, 102, 255, .035);
}

.related-product-media img {
  width: 100%;
  height: 100%;
  max-height: 230px;
  padding: 18px;
  object-fit: contain;
  transition: transform .45s ease;
}

.related-product-card:hover .related-product-media img {
  transform: scale(1.04);
}

.related-product-content {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  padding: 26px;
}

.related-product-content h3 {
  margin: 14px 0 10px;
  font-size: 20px;
  line-height: 1.35;
}

.related-product-content p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.related-product-content .text-link {
  margin-block-start: auto;
  padding-block-start: 18px;
}

.product-introduction {
  max-width: 980px;
  margin-inline: auto;
  padding: 40px 44px;
}

.product-introduction h2 {
  margin-block: 12px 22px;
  font-size: clamp(28px, 3vw, 38px);
}

.product-introduction p {
  margin-block: 0 17px;
  color: var(--text);
  font-size: 15px;
  line-height: 1.95;
  text-align: justify;
}

.product-introduction p:last-child {
  margin-block-end: 0;
}

.product-introduction-divider {
  width: 72px;
  height: 2px;
  margin: 68px auto;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.product-spec-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.product-spec-card {
  min-width: 0;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.product-spec-card small {
  display: block;
  margin-block-end: 8px;
  color: var(--muted);
  font-size: 12px;
}

.product-spec-card strong {
  display: block;
  color: var(--ink);
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.product-detail-sections {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.product-detail-block {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.product-detail-block>span {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
}

.product-detail-block h3 {
  margin-block-end: 9px;
  font-size: 19px;
}

.product-detail-block p {
  margin: 0;
  font-size: 14px;
}

.health-notice {
  margin-block: 24px 0;
  color: #4a5d78;
  background: #edf5ff;
  border-color: #cfe3ff;
}

.product-functions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.product-function {
  min-height: 112px;
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.product-function span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

.product-function strong {
  color: var(--ink);
  font-size: 15px;
}

.specification-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.specification-group {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.specification-group h3 {
  margin: 0;
  padding: 19px 22px;
  color: var(--ink);
  background: var(--surface);
  border-block-end: 1px solid var(--line);
  font-size: 17px;
}

.specification-group dl {
  margin: 0;
}

.specification-group dl>div {
  display: grid;
  grid-template-columns: minmax(105px, .7fr) minmax(0, 1.3fr);
  gap: 18px;
  padding: 14px 22px;
  border-block-end: 1px solid var(--line);
}

.specification-group dl>div:last-child {
  border-block-end: 0;
}

.specification-group dt {
  color: var(--muted);
  font-size: 13px;
}

.specification-group dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.detail-list-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 22px;
}

.detail-list-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.detail-list-card h3 {
  margin-block-end: 18px;
  font-size: 21px;
}

.detail-list-card--accent {
  border-color: #cfe3ff;
  background: linear-gradient(145deg, #fff, #f3f8ff);
}

.product-disclaimer {
  margin-block: 22px 0;
}

.news-list {
  display: grid;
  gap: 22px;
}

.news-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  padding: 0;
  overflow: hidden;
}

.news-card .media-placeholder {
  min-height: 220px;
  border-radius: 9px 0 0 9px;
  box-shadow: none;
}

.news-image {
  margin: 0;
  overflow: hidden;
  /* background: #f3f6fa;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft); */
}

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

.news-card .news-image {
  min-height: 220px;
  border-radius: 9px 0 0 9px;
  box-shadow: none;
}

.news-card .news-image img {
  height: 100%;
  min-height: 220px;
  aspect-ratio: 14 / 11;
}

.news-card-content {
  padding: 28px 34px;
}

.news-meta,
.news-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  color: var(--muted);
  font-size: 12px;
}

.news-meta span,
.news-article-meta span {
  padding: 5px 10px;
  color: var(--primary);
  background: #eaf3ff;
  border-radius: 999px;
  font-weight: 700;
}

.news-card time {
  color: var(--primary);
}

.news-card h2 {
  margin-block: 10px;
  font-size: 23px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 780px) 260px;
  gap: 64px;
  align-items: start;
}

.article-layout>* {
  min-width: 0;
}

.article-body {
  min-width: 0;
  font-size: 16px;
  overflow-wrap: anywhere;
}

.article-body>p {
  margin-block-end: 20px;
}

.news-image--lead {
  margin-block-end: 24px;
}

.news-image--lead img {
  max-height: 720px;
  object-fit: contain;
}

.news-article-meta {
  margin-block-end: 24px;
}

.news-image--inline {
  margin-block: 28px 32px;
}

.news-image--inline img {
  max-height: 760px;
  object-fit: contain;
}

.news-source a {
  display: inline-block;
  margin-inline-start: 8px;
  color: var(--primary);
  font-weight: 700;
}

.article-body h2 {
  margin-block: 38px 16px;
  font-size: 25px;
}

.article-body ul {
  padding-inline-start: 22px;
  list-style: disc;
}

.article-body li {
  margin-block-end: 9px;
}

.article-body a {
  color: var(--primary);
  font-weight: 700;
}

/* 隐私与 Cookie 政策页 */
.cookie-policy-lead,
.privacy-policy-lead,
.terms-policy-lead {
  padding: 22px 24px;
  color: var(--ink);
  background: linear-gradient(135deg, #f3f8ff, #fff);
  border-inline-start: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  line-height: 1.9;
}

.cookie-policy-summary,
.privacy-policy-summary,
.terms-policy-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-block: 28px 32px;
}

.cookie-policy-summary>div,
.privacy-policy-summary>div,
.terms-policy-summary>div {
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
}

.cookie-policy-summary span,
.privacy-policy-summary span,
.terms-policy-summary span {
  display: block;
  margin-block-end: 12px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

.cookie-policy-summary strong,
.privacy-policy-summary strong,
.terms-policy-summary strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
}

.cookie-policy-summary p,
.privacy-policy-summary p,
.terms-policy-summary p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.cookie-storage-table,
.policy-data-table {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin-block: 24px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

.cookie-storage-table table,
.policy-data-table table {
  width: 100%;
  min-width: 650px;
  border-collapse: collapse;
  background: #fff;
}

.cookie-storage-table th,
.cookie-storage-table td,
.policy-data-table th,
.policy-data-table td {
  padding: 15px 17px;
  border-block-end: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
  font-size: 13px;
}

.cookie-storage-table th,
.policy-data-table th {
  color: var(--ink);
  background: var(--surface);
  font-size: 12px;
}

.cookie-storage-table tbody tr:last-child td,
.policy-data-table tbody tr:last-child td {
  border-block-end: 0;
}

.cookie-storage-table code,
.policy-data-table code {
  color: #0750b8;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.policy-toc {
  display: grid;
  gap: 4px;
  margin-block: 14px 28px;
}

.policy-toc a {
  padding: 8px 10px;
  color: var(--muted);
  border-radius: 6px;
  font-size: 13px;
}

.policy-toc a:hover,
.policy-toc a:focus-visible {
  color: var(--primary);
  background: #eaf3ff;
}

.article-aside {
  position: sticky;
  inset-block-start: 105px;
  padding: 25px;
  background: var(--surface);
  border-radius: var(--radius);
}

.article-aside h2 {
  font-size: 17px;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin-block: 18px 0;
}

.feature-list li {
  display: flex;
  gap: 9px;
  font-size: 14px;
}

.feature-list li::before {
  content: "✓";
  color: var(--success);
  font-weight: 800;
}

.notice {
  padding: 16px 18px;
  margin-block-end: 28px;
  color: #765d1c;
  background: #fff9e6;
  border: 1px solid #f1dfa8;
  border-radius: 8px;
  font-size: 13px;
}

.faq-hub-heading,
.faq-category-tabs,
.faq-panels {
  max-width: 1080px;
  margin-inline: auto;
}

.faq-hub-heading {
  margin-block-end: 20px;
}

.faq-hub-heading h2 {
  margin-block: 8px 6px;
  font-size: clamp(30px, 4vw, 44px);
}

.faq-hub-heading p,
.faq-group-heading p {
  margin: 0;
  color: var(--muted);
}

.faq-category-tabs {
  display: flex;
  align-items: stretch;
  gap: 36px;
  border-block-end: 1px solid var(--line);
}

.faq-category-tab {
  position: relative;
  min-width: 112px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 4px 16px;
  color: var(--muted);
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  transition: color var(--ease);
}

.faq-category-tab::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: -1px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px 3px 0 0;
  scale: 0 1;
  transition: scale var(--ease);
}

.faq-category-tab:hover,
.faq-category-tab:focus-visible,
.faq-category-tab.is-active {
  color: var(--primary);
}

.faq-category-tab.is-active::after {
  scale: 1 1;
}

.faq-category-tab strong {
  font-size: 16px;
  white-space: nowrap;
}

.faq-category-tab small {
  min-width: 22px;
  padding: 1px 6px;
  color: inherit;
  background: #edf4ff;
  border-radius: 999px;
  font-size: 11px;
  line-height: 20px;
}

.faq-panels {
  padding-block-start: 26px;
}

.faq-section {
  scroll-margin-block-start: 110px;
}

.faq-group-heading {
  margin-block-end: 20px;
}

.faq-group-heading h2 {
  margin-block: 6px 5px;
  font-size: clamp(24px, 3vw, 32px);
}

.faq-list {
  width: 100%;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
}

.faq-item {
  border-block-end: 1px solid var(--line);
}

.faq-item:last-child {
  border-block-end: 0;
}

.faq-item h3 {
  margin: 0;
  font-size: inherit;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 23px;
  padding-inline: 24px;
  border: 0;
  color: var(--ink);
  background: transparent;
  text-align: start;
  font-weight: 600;
  line-height: 1.6;
}

.faq-question::after {
  content: "+";
  color: var(--primary);
  font-size: 24px;
  font-weight: 400;
  transition: rotate var(--ease);
}

.faq-question[aria-expanded="true"]::after {
  rotate: 45deg;
}

.faq-answer {
  padding-block: 0 24px;
  padding-inline: 24px 54px;
  color: var(--muted);
  line-height: 1.85;
}

.faq-answer p {
  margin-block: 0 14px;
}

.faq-answer p:last-child {
  margin-block-end: 0;
}

.faq-answer ol {
  display: grid;
  gap: 8px;
  margin-block: 0 16px;
  padding-inline-start: 22px;
}

.faq-answer li {
  padding-inline-start: 4px;
}

.faq-answer-note {
  padding: 12px 14px;
  color: #51627c;
  background: #f3f7fd;
  border-inline-start: 3px solid #8ab8ff;
  border-radius: 8px;
  border-start-start-radius: 0;
  border-end-start-radius: 0;
  font-size: 13px;
}

@media (max-width: 720px) {
  .faq-category-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .faq-category-tab {
    min-width: 0;
    gap: 4px;
    padding: 12px 2px 14px;
  }

  .faq-category-tab strong {
    font-size: 14px;
  }

  .faq-category-tab small {
    min-width: 18px;
    padding-inline: 4px;
    font-size: 10px;
    line-height: 18px;
  }

  .faq-panels {
    padding-block-start: 20px;
  }

  .faq-group-heading {
    margin-block-end: 16px;
  }

  .faq-question {
    padding-inline: 18px;
  }

  .faq-answer {
    padding-inline: 18px 42px;
  }
}

.download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.download-item strong {
  display: block;
  color: var(--ink);
}

.download-item small {
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 58px;
}

.contact-list {
  display: grid;
  gap: 18px;
}

.contact-item {
  padding-block-end: 18px;
  border-block-end: 1px solid var(--line);
}

.contact-item small {
  display: block;
  color: var(--muted);
}

.contact-item strong {
  color: var(--ink);
}

.contact-map {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #eef4fb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.contact-map img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1750 / 1024;
  object-fit: cover;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

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

.field label {
  display: block;
  margin-block-end: 7px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #dce2eb;
  border-radius: 6px;
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(3, 102, 255, .1);
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
}

.checkbox input {
  margin-block-start: 5px;
}

.checkbox .text-link::after {
  display: none;
}

.form-status {
  min-height: 24px;
  margin-block-start: 14px;
  color: var(--muted);
  font-size: 13px;
}

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

.form-status.is-error {
  color: #c93636;
}

[data-contact-form] button[type="submit"]:disabled {
  cursor: wait;
  opacity: .72;
}

body.has-submit-modal {
  overflow: hidden;
}

.submit-modal[hidden] {
  display: none;
}

.submit-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 20px;
}

.submit-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 18, 43, .64);
  backdrop-filter: blur(7px);
  animation: submit-modal-fade .22s ease both;
}

.submit-modal-dialog {
  position: relative;
  width: min(460px, 100%);
  padding: 46px 40px 38px;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(circle at 88% 8%, rgba(3, 102, 255, .12), transparent 28%),
    linear-gradient(145deg, #fff, #f7fbff);
  border: 1px solid rgba(3, 102, 255, .2);
  border-radius: 26px 10px 26px 10px;
  box-shadow: 0 34px 90px rgba(4, 21, 54, .32);
  animation: submit-modal-rise .28s cubic-bezier(.2, .8, .2, 1) both;
}

.submit-modal-dialog::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 68px;
  height: 4px;
  background: linear-gradient(90deg, transparent, #0366ff, #31c8ff, transparent);
  border-radius: 0 0 5px 5px;
}

.submit-modal-close {
  position: absolute;
  inset-block-start: 16px;
  inset-inline-end: 16px;
  width: 36px;
  height: 36px;
  padding: 0;
  color: #6f7d93;
  background: rgba(236, 243, 253, .9);
  border: 0;
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--ease), background var(--ease), transform var(--ease);
}

.submit-modal-close:hover,
.submit-modal-close:focus-visible {
  color: #fff;
  background: var(--primary);
  transform: rotate(6deg);
}

.submit-modal-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 22px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(145deg, #05b57b, #24d19a);
  border: 8px solid #e8fbf4;
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(5, 181, 123, .24);
}

.submit-modal-icon span {
  font-size: 31px;
  font-weight: 800;
  line-height: 1;
}

.submit-modal-dialog h2 {
  margin: 10px 0 12px;
  font-size: clamp(28px, 4vw, 36px);
}

.submit-modal-dialog p {
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 16px;
}

.submit-modal-dialog .btn {
  min-width: 150px;
}

@keyframes submit-modal-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes submit-modal-rise {
  from { opacity: 0; transform: translateY(18px) scale(.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 页脚与浮层 */
.site-footer {
  padding-block-start: 70px;
  color: #8b95a7;
  background: #0a1428;
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 50px;
  padding-block-end: 45px;
}

.site-footer h2 {
  margin-block-end: 18px;
  color: #fff;
  font-size: 15px;
}

.site-footer li {
  margin-block-end: 9px;
}

.site-footer a:hover {
  color: #fff;
}

.brand--footer .brand-copy strong {
  color: #fff;
}

.footer-brand p {
  max-width: 380px;
  margin-block-start: 22px;
}

.footer-address {
  padding-block: 22px;
  border-block-start: 1px solid rgba(255, 255, 255, .08);
}

.footer-address p {
  margin: 0;
}

.footer-bottom {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  border-block-start: 1px solid rgba(255, 255, 255, .08);
  font-size: 12px;
}

.footer-bottom span:last-child {
  display: flex;
  gap: 18px;
}

.back-to-top {
  position: fixed;
  z-index: 800;
  inset-inline-end: 24px;
  inset-block-end: 24px;
  width: 44px;
  height: 44px;
  border: 0;
  color: #fff;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 8px 22px rgba(3, 102, 255, .28);
  opacity: 0;
  visibility: hidden;
  translate: 0 10px;
  transition: var(--ease);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  translate: 0;
}

.cookie-banner {
  position: fixed;
  z-index: 1100;
  inset-inline: 24px;
  inset-block-end: 22px;
  max-width: 720px;
  margin-inline: auto;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner strong {
  color: var(--ink);
}

.cookie-banner p {
  margin: 2px 0 0;
  font-size: 12px;
}

.cookie-banner a {
  color: var(--primary);
}

.cookie-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.cookie-actions .btn {
  min-height: 38px;
  padding: 7px 15px;
}

.reveal {
  opacity: 0;
  translate: 0 24px;
  transition: opacity .7s ease, translate .7s ease;
}

.reveal.is-visible {
  opacity: 1;
  translate: 0;
}

@media (max-width: 1100px) {

  .nav-link,
  .nav-trigger {
    padding-inline: 8px;
    font-size: 13px;
  }

  .header-cta {
    display: none;
  }

  html[lang="en"] .nav-link,
  html[lang="en"] .nav-trigger {
    padding-inline: 6px;
    font-size: 12px;
  }

  .hero-inner {
    gap: 36px;
  }

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

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

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

  .footer-contact {
    grid-column: 2 / -1;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 64px;
  }

  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .menu-toggle {
    display: block;
  }

  /* 避免 backdrop-filter 让 fixed 菜单被限制在页头高度内 */
  .primary-nav {
    position: absolute;
    inset: 100% 0 auto;
    height: calc(100vh - var(--header-h));
    height: calc(100dvh - var(--header-h));
    display: block;
    padding: 16px;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #fff;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform .32s ease, visibility .32s ease;
    margin-inline-start: 0;
  }

  [dir="rtl"] .primary-nav {
    transform: translateX(-100%);
  }

  .primary-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-link,
  .nav-trigger {
    width: 100%;
    height: auto;
    min-height: 48px;
    justify-content: space-between;
    padding: 12px 8px;
    border-block-end: 1px solid var(--line);
  }

  .nav-link.is-active::after,
  .nav-group.is-active>.nav-trigger::before {
    display: none;
  }

  .nav-group {
    position: static;
  }

  .nav-menu {
    position: static;
    display: none;
    min-width: 0;
    padding: 5px 0 8px 14px;
    transform: none;
    translate: 0;
    visibility: hidden;
    opacity: 0;
    border: 0;
    box-shadow: none;
  }

  /* 覆盖桌面端 hover/focus-within 的高优先级位移，防止子项展开后被移出屏幕 */
  .nav-group:hover .nav-menu.is-open,
  .nav-group:focus-within .nav-menu.is-open,
  .nav-menu.is-open {
    display: block;
    transform: none;
    translate: 0;
    visibility: visible;
    opacity: 1;
  }

  .nav-menu.is-open a {
    display: block;
    color: var(--text);
    visibility: visible;
    opacity: 1;
  }

  .nav-group:hover .nav-menu:not(.is-open),
  .nav-group:focus-within .nav-menu:not(.is-open) {
    display: none;
  }

  .menu-toggle[aria-expanded="true"] i:first-of-type {
    rotate: 45deg;
    translate: 0 7px;
  }

  .menu-toggle[aria-expanded="true"] i:nth-of-type(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] i:last-of-type {
    rotate: -45deg;
    translate: 0 -7px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding-block: 72px 130px;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy p {
    margin-inline: auto;
  }

  .button-row,
  .trust-note {
    justify-content: center;
  }

  .visual-placeholder {
    min-height: 340px;
  }

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

  .stat:nth-child(2) {
    border-inline-end: 0;
  }

  .stat:nth-child(-n+2) {
    border-block-end: 1px solid var(--line);
  }

  .split,
  .contact-grid,
  .article-layout {
    grid-template-columns: 1fr;
  }

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

  .split--reverse> :first-child {
    order: 0;
  }

  .solution-visual {
    width: 100%;
    max-width: 680px;
    justify-self: center;
  }

  .article-aside {
    position: static;
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 0;
  }

  .step:nth-child(3)::after {
    display: none;
  }

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

  .logo-wall {
    gap: 18px 14px;
    padding: 28px 20px;
  }

  .logo-chip {
    flex-basis: calc((100% - 28px) / 3);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 34px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .brand-copy strong {
    font-size: 15px;
  }

  .brand-copy small {
    font-size: 8px;
  }

  .header-inner {
    gap: 8px;
  }

  .header-tools {
    gap: 7px;
  }

  .language-switch {
    min-height: 32px;
    padding-inline: 7px;
  }

  .section {
    padding-block: 66px;
  }

  .section--compact {
    padding-block: 50px;
  }

  .section-heading {
    margin-block-end: 34px;
  }

  .hero-copy h1 {
    font-size: 39px;
  }

  .hero-copy p {
    font-size: 15px;
  }

  .visual-placeholder {
    min-height: 295px;
  }

  .stats-wrap {
    margin-block-start: -75px;
  }

  .stats {
    padding: 10px 0;
  }

  .stat {
    padding: 15px 12px;
    text-align: center;
  }

  .stat strong {
    font-size: 24px;
  }

  .stat span {
    font-size: 11px;
  }

  .page-hero {
    min-height: 320px;
  }

  .solution-visual {
    min-height: 390px;
    padding: 14px;
  }

  .solution-visual__stage {
    min-height: 280px;
    grid-template-columns: minmax(0, 1.22fr) minmax(112px, .78fr);
    gap: 8px;
  }

  .solution-visual__rail {
    gap: 8px;
  }

  .solution-product__copy {
    padding: 8px 9px;
  }

  .solution-product--primary .solution-product__copy {
    padding: 10px 11px;
  }

  .solution-product__copy span {
    display: none;
  }

  .solution-product__copy strong,
  .solution-product--primary .solution-product__copy strong {
    font-size: 12px;
  }

  .solution-visual figcaption li {
    padding: 6px 8px;
    font-size: 9px;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .case-card .product-card-body {
    min-height: 0;
  }

  .case-product-guide {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    padding: 22px;
  }

  .product-introduction {
    padding: 28px 24px;
  }

  .cookie-policy-summary,
  .privacy-policy-summary,
  .terms-policy-summary {
    grid-template-columns: 1fr;
  }

  .article-body h2 {
    font-size: 23px;
    line-height: 1.35;
  }

  .cookie-policy-lead,
  .privacy-policy-lead,
  .terms-policy-lead {
    padding: 18px;
  }

  .product-introduction p {
    font-size: 14px;
    line-height: 1.85;
    text-align: start;
  }

  .product-introduction-divider {
    margin-block: 48px;
  }

  .product-spec-cards,
  .product-detail-sections,
  .product-functions,
  .specification-groups,
  .detail-list-grid {
    grid-template-columns: 1fr;
  }

  .product-detail-block {
    grid-template-columns: 42px 1fr;
    padding: 22px;
  }

  .product-detail-block>span {
    width: 42px;
    height: 42px;
  }

  .specification-group dl>div {
    grid-template-columns: 100px minmax(0, 1fr);
    padding-inline: 16px;
  }

  .card {
    padding: 24px;
  }

  .card.related-product-card {
    min-height: 0;
    grid-template-columns: 1fr;
    padding: 0;
  }

  .related-product-media {
    min-height: 210px;
    border-inline-end: 0;
    border-block-end: 1px solid rgba(124, 157, 207, .2);
  }

  .related-product-media img {
    max-height: 220px;
  }

  .related-product-content {
    padding: 22px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .step {
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: 0 16px;
    text-align: start;
  }

  .step-number {
    grid-row: 1 / 3;
  }

  .step:not(:last-child)::after {
    inset-block-start: 50px;
    inset-inline-start: 25px;
    width: 1px;
    height: calc(100% - 28px);
    border: 0;
    border-inline-start: 1px dashed #aac9fa;
  }

  .logo-wall {
    gap: 12px;
    padding: 18px 12px;
    border-radius: 20px;
  }

  .logo-chip,
  .logo-chip:nth-child(6n + 2),
  .logo-chip:nth-child(6n + 5) {
    --partner-offset: 0px;
    flex-basis: calc((100% - 12px) / 2);
    min-width: 0;
    min-height: 100px;
    border-radius: 20px 7px 20px 7px;
  }

  .logo-chip:nth-child(even) {
    border-radius: 7px 20px 7px 20px;
  }

  .partner-logo-frame {
    width: min(132px, 100%);
    height: 62px;
  }

  .partner-logo-frame img {
    width: 152px;
  }

  .cta {
    display: block;
    padding: 38px 26px;
    text-align: center;
  }

  .cta .btn {
    margin-block-start: 24px;
  }

  .news-card {
    grid-template-columns: 1fr;
  }

  .news-card .media-placeholder {
    min-height: 210px;
    border-radius: 9px 9px 0 0;
  }

  .news-card .news-image {
    min-height: 210px;
    border-radius: 9px 9px 0 0;
  }

  .news-card .news-image img {
    min-height: 210px;
    aspect-ratio: 16 / 10;
  }

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

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

  .field--full {
    grid-column: auto;
  }

  .download-item {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer-brand,
  .footer-contact {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 18px;
  }

  .footer-bottom span:last-child {
    flex-wrap: wrap;
  }

  .submit-modal {
    padding: 14px;
  }

  .submit-modal-dialog {
    padding: 42px 24px 30px;
    border-radius: 22px 8px 22px 8px;
  }

  .cookie-banner {
    inset-inline: 12px;
    inset-block-end: 12px;
    align-items: stretch;
    flex-direction: column;
  }

  .cookie-actions .btn {
    flex: 1;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .reveal {
    opacity: 1;
    translate: 0;
  }
}