/* ==========================================================================
   重庆乾无垠人工智能科技有限公司 · 企业官网
   设计基调：天蓝科技风 / 全站天蓝底（无纯白面）+ 深蓝字 / 1px 细线网格
   主视觉：线框球（首屏） + 等距立方体（内页），全部 CSS 与内联 SVG 实现
   ========================================================================== */

:root {
  /* 三级底色：页面 → 区块 → 卡片，逐级提亮 */
  --bg: #fbfdff;   /* 学腾讯云：近白底，蓝色只做强调 */
  --bg-2: #eef5fc;
  --bg-3: #ffffff;

  --nav: rgba(252, 254, 255, 0.88); /* 学腾讯云：白底毛玻璃 */
  --hero: #f3f9ff;

  /* 强调色：天蓝 → 深天蓝 */
  --blue: #0e7fd4;
  --cyan: #0aa6e0;
  --sky: #38bdf8;
  --violet: #6366f1;
  --grad: linear-gradient(118deg, #4cc4f8 0%, #0284c7 100%);

  /* 二级强调色：底色变蓝后，纯蓝字在中蓝底上偏虚，链接/小标题统一用它 */
  --blue-text: #0a5c99;

  --navy: #0b4a7a;
  --navy-hover: #0b5f99;
  --navy-soft: #7cb8e6;

  --ink: #08243f;
  --ink-2: #35566f;
  --muted: #3d5c80;

  --line: rgba(30, 90, 150, 0.12);
  --line-2: rgba(30, 90, 150, 0.16);

  --surface: #ffffff;
  --surface-2: #e8f2fc;

  --on-dark: #ffffff;
  --on-dark-2: #a9b8d4;
  --on-dark-3: #8296b8;
  --on-dark-line: rgba(255, 255, 255, 0.09);

  --sans: "Inter", "Segoe UI", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
    system-ui, -apple-system, sans-serif;
  /* 保留变量名兼容后台样式，全站统一无衬线 */
  --serif: var(--sans);

  --max: 1600px;
  --gutter: 24px;
  --radius: 0;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  /* 兼容后台与登录页（admin.css）沿用的旧变量名，同步浅色化 */
  --paper: #f0f7fe;
  --paper-2: #e3eefb;
  --paper-3: #a5d0f2;
  --accent: #0e7fd4;
  --accent-soft: #a9cdea;
  --night: #0b4a7a;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.005em;
}

p {
  margin: 0;
}

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

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

button {
  font-family: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--bg-3);
  color: var(--blue-text);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--navy);
  transition: top 0.18s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ==========================================================================
   头部：单层导航
   ========================================================================== */

.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
}

.nav {
  position: relative;
  background: var(--nav);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(30, 90, 150, 0.1);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
}

.brand-text {
  display: block;
}

/* 公司名 + 合作伙伴徽标同行 */
.brand-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 合作伙伴联名标识：公司名右侧「× WorkBuddy 合作伙伴」；后台「品牌与首屏」可改文案，清空即隐藏 */
.brand-partner {
  display: inline-flex;
  align-items: center;
  flex: none;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.35;
  color: var(--ink, #08243f);
  white-space: nowrap;
}
.brand-partner::before {
  content: "\00D7";
  margin-right: 6px;
  color: var(--blue, #0e7fd4);
  font-weight: 700;
  font-size: 13px;
}
.brand-partner:empty {
  display: none;
}

/* 公司 LOGO（乾小A 圆形徽标）：PNG 已带白描边圆底，这里只负责对齐与防压缩 */
.brand-logo {
  display: block;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
}

.brand-name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.brand-claim {
  display: block;
  font-size: 9px;
  letter-spacing: 0.22em;
  margin-top: 2px;
}

/* 白字只作用于导航条；页脚共用同一套 brand 结构，底色已改蓝，不能再留白字 */
.nav .brand-claim {
  color: rgba(8, 36, 63, 0.55);
}

.foot-brand .brand-claim {
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  height: 66px;
  font-size: 13.5px;
}

.nav-links > a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 66px;
  color: rgba(8, 36, 63, 0.8);
  transition: color 0.18s var(--ease);
}

.nav-links > a:hover {
  color: var(--blue-text);
}

.nav-links > a[aria-current="page"] {
  color: var(--navy);
  font-weight: 600;
}

.nav-links > a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--blue);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 18px;
  background: var(--grad);
  color: #fff !important;
  font-size: 13px;
  font-weight: 700;
  border-radius: 0;
  border: 1px solid transparent;
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.28);
  transition: box-shadow 0.2s var(--ease), filter 0.2s var(--ease);
}

.nav-links > a.nav-cta {
  height: 36px;
}

.nav-cta:hover {
  filter: brightness(1.05);
  box-shadow: 0 8px 26px rgba(2, 132, 199, 0.36);
}

.nav-links > a.nav-cta::after {
  display: none;
}

.nav-toggle {
  display: none;
  height: 34px;
  padding: 0 14px;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  border: 1px solid rgba(30, 90, 150, 0.35);
  border-radius: 0;
  cursor: pointer;
}

/* ==========================================================================
   按钮
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 44px;
  padding: 0 24px;
  background: var(--grad);
  color: #fff;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(2, 132, 199, 0.24);
  transition: box-shadow 0.2s var(--ease), filter 0.2s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.btn:hover {
  filter: brightness(1.05);
  box-shadow: 0 12px 32px rgba(2, 132, 199, 0.32);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
  box-shadow: none;
}

.btn.ghost:hover {
  border-color: var(--blue);
  color: var(--navy);
  background: #eaf4fd;
}

/* ==========================================================================
   首屏（深色）
   ========================================================================== */

.hero {
  position: relative;
  background: linear-gradient(178deg, #e7f3fe 0%, #f6fbff 55%, #ecf6fd 100%);
  color: var(--ink);
  padding: 66px 0 108px;
  overflow: hidden;
}

/* 右上天蓝主光晕 */
.hero::before {
  content: "";
  position: absolute;
  top: -300px;
  right: -100px;
  width: 1220px;
  height: 1220px;
  background: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.5) 0%,
    rgba(14, 127, 212, 0.22) 40%,
    rgba(14, 127, 212, 0.08) 58%,
    transparent 74%
  );
  pointer-events: none;
}

/* 左下浅蓝余晖，避免大面积平涂 */
.hero::after {
  content: "";
  position: absolute;
  left: -240px;
  bottom: -360px;
  width: 820px;
  height: 820px;
  background: radial-gradient(circle, rgba(125, 185, 235, 0.4) 0%, transparent 62%);
  pointer-events: none;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(14, 127, 212, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14, 127, 212, 0.14) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 80% 4%, #000 0%, transparent 62%);
  mask-image: radial-gradient(circle at 80% 4%, #000 0%, transparent 62%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px 240px;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  padding: 5px 12px;
  border: 1px solid rgba(14, 127, 212, 0.34);
  background: #e8f3fd;
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--sky);
}

.hero h1 {
  font-size: 40px;
  line-height: 1.36;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero h1 span {
  display: block;
}

/* 第二行做渐变字，作为整页的视觉锤 */
.hero h1 span:last-child {
  background: linear-gradient(100deg, #0b4a7a 0%, #0e7fd4 52%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin-top: 22px;
  max-width: 540px;
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-2);
}

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

/* ---------------- 首屏 3D 线框球 ---------------- */

.hero-visual {
  position: relative;
  height: 360px;
}

/* 球体背后的天蓝辉光，把白球从浅底里衬出来 */
.hero-visual::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 430px;
  height: 430px;
  margin: -215px 0 0 -215px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.34) 0%,
    rgba(14, 127, 212, 0.1) 46%,
    transparent 68%
  );
  pointer-events: none;
}

.orb {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 272px;
  height: 272px;
  margin: -136px 0 0 -136px;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(
      circle at 30% 24%,
      #eaf6ff 0%,
      #cbe7fa 24%,
      #a9d4f5 56%,
      #6fa8d8 84%
    ),
    radial-gradient(circle at 72% 82%, rgba(56, 189, 248, 0.5), transparent 56%);
  box-shadow: 0 34px 70px rgba(14, 127, 212, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.95),
    inset -20px -22px 48px rgba(96, 150, 200, 0.42), inset 16px 14px 40px rgba(255, 255, 255, 0.7);
}

.orb-wire {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.orb-spec {
  position: absolute;
  left: 24%;
  top: 16%;
  width: 52px;
  height: 34px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.85), transparent 72%);
  filter: blur(6px);
}

/* 线框球在浅底上要换成深蓝线，浅色线在白底看不见 */
.orb-wire g[stroke] {
  stroke: #2f7cb3;
  stroke-opacity: 0.55;
}

.orb-wire circle {
  fill: #0e7fd4;
}

.orb-wire path[stroke] {
  stroke: #1f8ed3;
  stroke-opacity: 0.6;
}

.orb-dot {
  background: #0e7fd4;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.9);
}

.orb-dot.cy {
  background: var(--sky);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.9);
}

.orb-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 1px solid rgba(14, 127, 212, 0.4);
}

.orb-ring.r1 {
  width: 336px;
  height: 336px;
  margin: -168px 0 0 -168px;
  transform: rotateX(76deg) rotateZ(-16deg);
}

.orb-ring.r2 {
  width: 392px;
  height: 392px;
  margin: -196px 0 0 -196px;
  transform: rotateX(71deg) rotateZ(24deg);
  border-color: rgba(56, 189, 248, 0.5);
}

.orb-spin {
  position: absolute;
  inset: 0;
  animation: orb-spin 26s linear infinite;
}

.orb-spin.slow {
  animation-duration: 44s;
  animation-direction: reverse;
}

.orb-dot {
  position: absolute;
  left: 50%;
  top: -3px;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: #0e7fd4;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.9);
}

.orb-dot.cy {
  background: var(--sky);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.9);
}

@keyframes orb-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .orb-spin {
    animation: none;
  }
}

.hero-aside {
  border-left: 1px solid var(--line-2);
  padding-left: 28px;
}

.hero-aside .k {
  color: var(--muted);
}

.hero-aside .v {
  color: var(--ink);
}

.hero-aside > div + div {
  margin-top: 22px;
}

.hero-aside .k {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.hero-aside .v {
  margin-top: 5px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

/* 联系方式列：电话与邮箱两行紧排 */
.hero-contact .v + .v {
  margin-top: 3px;
}

.hero-aside .v a {
  color: var(--navy);
  border-bottom: 1px solid rgba(14, 127, 212, 0.4);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.hero-aside .v a:hover {
  border-color: var(--blue);
  color: var(--blue-text);
}

/* 指标条：跨越深色首屏的玻璃拟态面板 */
.hero-metrics {
  position: relative;
  z-index: 2;
  margin-top: -64px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  box-shadow: 0 18px 44px rgba(20, 90, 160, 0.1);
}

.metric {
  padding: 24px 26px 23px;
  border-right: 1px solid var(--line);
}

.metric:last-child {
  border-right: 0;
}

.metric-v {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  background: linear-gradient(120deg, #0b4a7a 0%, #0e7fd4 60%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.metric-l {
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ==========================================================================
   区块通用
   ========================================================================== */

.section {
  padding: 64px 0;
}

.section + .section {
  padding-top: 0;
}

.section.surface {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 64px 0;
}

.section.surface + .section {
  padding-top: 64px;
}

.section-head {
  margin-bottom: 32px;
  max-width: 840px;
}

.kicker {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-text);
  margin-bottom: 13px;
}

.section-head h2 {
  font-size: 26px;
  line-height: 1.5;
}

.section-head .lead {
  margin-top: 12px;
  max-width: 720px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
}

.lead {
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
}

/* ==========================================================================
   首页 · 主营业务（网格卡片）
   ========================================================================== */

.svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: transparent;
  border: none;
}

.svc-card {
  position: relative;
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 28px 28px 30px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

/* hover 时顶部亮一条渐变细线 */
.svc-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.25s var(--ease);
  pointer-events: none;
}

.svc-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}

.svc-card:hover::after {
  opacity: 1;
}

.svc-en {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sky);
  margin-bottom: 16px;
}

.svc-card h3 {
  font-size: 17px;
  font-weight: 700;
}

.svc-card p {
  margin-top: 11px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--surface-2);
  border: 1px solid var(--line);
}

/* ==========================================================================
   引言带
   ========================================================================== */

.quote-band {
  position: relative;
  background: linear-gradient(120deg, #eef6fd 0%, #e1effb 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  padding: 52px 0 54px;
  overflow: hidden;
}

.quote-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 50%, rgba(56, 189, 248, 0.28) 0%, transparent 56%);
  pointer-events: none;
}

.quote-inner {
  position: relative;
  padding-left: 30px;
  max-width: 900px;
}

.quote-inner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--grad);
}

.quote-inner blockquote {
  margin: 0;
  font-size: 20px;
  line-height: 1.75;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.quote-by {
  margin-top: 14px;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ==========================================================================
   首页 · 交付方法（四步）
   ========================================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.step {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 24px 26px 26px;
}

.step:last-child {
  border-right: 1px solid rgba(30, 90, 150, 0.08);
}

.step-no {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--blue-text);
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

.step h4 {
  margin-top: 12px;
  font-size: 16px;
  font-weight: 700;
}

.step p {
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* ==========================================================================
   CTA 条
   ========================================================================== */

.cta-band {
  position: relative;
  background: linear-gradient(118deg, #0e7fd4 0%, #38bdf8 100%);
  color: #fff;
  padding: 46px 0;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -180px;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22) 0%, transparent 62%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-inner h2 {
  font-size: 24px;
  line-height: 1.5;
}

.cta-inner p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
  max-width: 620px;
}

/* 深底 CTA 上的按钮反白 → 改为参考蓝，保证对比度的同时不留纯白 */
.cta-band .btn {
  background: #cfe9fb;
  color: #083b64;
  box-shadow: 0 10px 26px rgba(2, 60, 110, 0.24);
}

.cta-band .btn:hover {
  background: #b9dcf7;
  box-shadow: 0 12px 30px rgba(2, 60, 110, 0.3);
}

.cta-inner .btn {
  flex: none;
}

/* ==========================================================================
   内页横幅（深色）
   ========================================================================== */

.page-head {
  position: relative;
  background: linear-gradient(178deg, #f0f8ff 0%, #f9fcff 100%);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  padding: 46px 0 50px;
  overflow: hidden;
}

.page-head::before {
  content: "";
  position: absolute;
  top: -300px;
  right: -160px;
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.4) 0%,
    rgba(14, 127, 212, 0.12) 40%,
    transparent 66%
  );
  pointer-events: none;
}

.page-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(14, 127, 212, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14, 127, 212, 0.13) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(circle at 88% 8%, #000 0%, transparent 64%);
  mask-image: radial-gradient(circle at 88% 8%, #000 0%, transparent 64%);
  pointer-events: none;
}

.page-head .wrap {
  position: relative;
  z-index: 1;
}

.crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.crumb i {
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.page-head h1 {
  font-size: 32px;
  line-height: 1.5;
  max-width: 860px;
}

.page-head .lead {
  margin-top: 14px;
  max-width: 640px;
  font-size: 14.5px;
  color: var(--ink-2);
}

/* ==========================================================================
   关于我们
   ========================================================================== */

.about-intro {
  max-width: 780px;
}

.about-intro .body p {
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-2);
}

.about-intro .body p + p {
  margin-top: 16px;
}

.belief-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  background: transparent;
  border: none;
}

.belief {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 26px 26px 28px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

.belief:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}

.belief .idx {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--navy);
  padding-bottom: 4px;
  border-bottom: 2px solid var(--sky);
  display: inline-block;
  margin-bottom: 15px;
  font-variant-numeric: tabular-nums;
}

.belief h3 {
  font-size: 16px;
  font-weight: 700;
}

.belief p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
}

.timeline {
  border-top: 1px solid var(--line-2);
}

.tl-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 32px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.tl-year {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.6;
}

.tl-text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-2);
  padding-top: 3px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  background: transparent;
  border: none;
}

.team-card {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 26px 26px 28px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

.team-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}

.role-en {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sky);
  display: inline-block;
  margin-bottom: 15px;
}

.team-card h3 {
  font-size: 16px;
  font-weight: 700;
}

.team-card p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
}

/* ==========================================================================
   产品服务
   ========================================================================== */

.svc-blocks {
  border-top: 1px solid var(--line-2);
  margin-top: 48px;
}

.svc-block {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 56px;
  padding: 34px 0 36px;
  border-bottom: 1px solid var(--line);
}

.svc-block .no {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 10px;
}

.svc-block h2 {
  font-size: 22px;
  line-height: 1.5;
}

.svc-block .en {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.svc-block .desc {
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
  max-width: 680px;
}

.k-list {
  margin-top: 18px;
}

.k-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink-2);
}

.k-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 7px;
  height: 1.5px;
  background: var(--navy);
}

/* FAQ：两栏对照列表 */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: transparent;
  border: none;
}

.faq-item {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 26px 26px 28px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

.faq-item:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}

.faq-item h4 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.7;
}

.faq-item h4::before {
  content: "Q.";
  color: var(--navy);
  font-weight: 700;
  margin-right: 8px;
  letter-spacing: 0.04em;
}

.faq-item .answer {
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
  padding-left: 26px;
}

/* ==========================================================================
   联系我们
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 64px;
  align-items: start;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.field {
  padding-top: 20px;
}

.field label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  margin-bottom: 8px;
  font-weight: 500;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 0;
  padding: 11px 13px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background 0.18s var(--ease);
  appearance: none;
}

.field textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.85;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--blue);
  background: var(--bg-3);
  box-shadow: 0 0 0 3px rgba(14, 127, 212, 0.14);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #8aa0b6;
}

.field .hint {
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--muted);
}

.select-wrap {
  position: relative;
}

.select-wrap::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 19px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--ink-2);
  border-bottom: 1.5px solid var(--ink-2);
  transform: translateY(-30%) rotate(45deg);
  pointer-events: none;
}

.consent {
  margin-top: 24px;
}

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
  cursor: pointer;
}

.check input {
  flex: none;
  width: 15px;
  height: 15px;
  margin: 4px 0 0;
  accent-color: var(--blue);
}

.check a {
  color: var(--navy);
  border-bottom: 1px solid var(--line-2);
}

.check a:hover {
  border-color: var(--navy);
}

.form-actions {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.form-msg {
  font-size: 13px;
  min-height: 20px;
}

.form-msg.err {
  color: #c2410c;
}

/* 必填项红色星标 + 图例（前台联系表单与后台统一） */
.req {
  color: #e23b3b;
  font-weight: 700;
  margin-left: 3px;
  line-height: 1;
}

.form-req-note {
  display: flex;
  align-items: center;
  font-size: 12.5px;
  color: var(--ink-2);
  margin: 0 0 18px;
}

.form-req-note .req {
  margin-left: 0;
  margin-right: 3px;
}

.form-msg.ok {
  color: #0f7a52;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  background: var(--bg-3);
}

/* 蜜罐字段本身也跟色，避免任何一处残留白底 */
.hp input {
  background: var(--bg-3);
}

.contact-side {
  border-left: 1px solid var(--line);
  padding-left: 40px;
  padding-top: 20px;
}

.contact-note {
  margin-top: 26px;
  padding: 16px 18px;
  background: var(--surface-2);
  border-left: 3px solid var(--sky);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* 内容管理里的图片字段：后台没有配图时整块隐藏，不留破图占位 */
.qr-figure,
.about-photo {
  margin: 26px 0 0;
  padding: 14px;
  border: 1px solid var(--line-2);
  background: var(--bg-3);
}

.qr-figure[hidden],
.about-photo[hidden] {
  display: none;
}

.qr-figure img {
  display: block;
  width: 150px;
  height: 150px;
  margin: 0 auto;
  object-fit: cover;
  background: var(--bg-2);
}

.about-photo img {
  display: block;
  width: 100%;
  height: auto;
}

.qr-figure figcaption,
.about-photo figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  text-align: center;
}

/* ==========================================================================
   隐私政策
   ========================================================================== */

.legal {
  max-width: 820px;
}

/* 横幅里的日期行 */
.page-head .legal-meta {
  margin: 14px 0 0;
  padding-bottom: 0;
  border-bottom: 0;
  color: var(--muted);
  font-size: 12.5px;
}

.legal-meta {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 34px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.legal h2 {
  font-size: 17px;
  margin: 38px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.legal h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.legal p {
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink-2);
}

.legal p + p {
  margin-top: 14px;
}

.legal a {
  color: var(--navy);
  border-bottom: 1px solid var(--line-2);
}

.legal a:hover {
  border-color: var(--navy);
}

.legal ul {
  margin: 14px 0 0;
}

.legal ul + p,
.legal ul + h2 {
  margin-top: 18px;
}

.legal li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink-2);
}

.legal li + li {
  margin-top: 6px;
}

.legal li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 7px;
  height: 1.5px;
  background: var(--navy);
}

/* ==========================================================================
   页脚
   ========================================================================== */

.foot {
  background: #edf5fc;
  border-top: 1px solid var(--line-2);
  color: var(--ink-2);
  padding: 52px 0 0;
  font-size: 13px;
}

.foot-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.15fr;
  gap: 48px;
  padding-bottom: 40px;
}

.foot-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
}

.foot-slogan {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 260px;
}

.foot-col h5 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
}

.foot-col a,
.foot-col p {
  display: block;
  font-size: 13px;
  font-weight: 400;
  line-height: 2.2;
  color: var(--ink-2);
}

.foot-col a:hover {
  color: var(--blue-text);
}

.foot-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 18px 0 22px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}

.foot-legal {
  display: flex;
  align-items: center;
  gap: 22px;
}

.foot-legal a:hover {
  color: var(--blue-text);
}

/* 企业服务平台入口：对外业务入口，比合规链接与内部管理入口更醒目 */
.foot-portal {
  color: var(--blue-text);
  font-weight: 600;
}

/* ==========================================================================
   科技图形：等距立方体结构图
   ========================================================================== */

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 56px;
  align-items: center;
}

.iso-figure {
  position: relative;
}

.iso-figure::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 46%;
  width: 470px;
  height: 470px;
  margin: -235px 0 0 -235px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.28) 0%,
    rgba(14, 127, 212, 0.1) 42%,
    transparent 68%
  );
  pointer-events: none;
}

.iso-figure svg {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
}

.page-head-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: center;
}

.page-head-inner .iso-figure {
  margin: -12px 0;
}

/* ==========================================================================
   首页重排（第 44 轮）：信任条 / WB 服务网格 / 差异化 / 行业 / 案例
   ========================================================================== */

/* 信任条：浅底横向 strip，四枚文字 chip */
.trust-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 40px 0 44px;
}
.trust-inner {
  text-align: center;
}
.trust-inner .kicker {
  display: block;
  margin-bottom: 12px;
}
.trust-inner h2 {
  font-size: 21px;
  line-height: 1.6;
  max-width: 760px;
  margin: 0 auto 26px;
  color: var(--ink);
}
.trust-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.trust-chips li {
  list-style: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.1);
  border-radius: 999px;
  padding: 9px 18px;
  box-shadow: 0 6px 18px rgba(20, 90, 160, 0.06);
}
.trust-chips li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sky);
  margin-right: 9px;
  vertical-align: middle;
}

/* WorkBuddy 原生服务网格：4 列 × 2 行 */
.wb-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.wb-card {
  position: relative;
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 26px 24px 28px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.wb-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.25s var(--ease);
  pointer-events: none;
}
.wb-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}
.wb-card:hover::after {
  opacity: 1;
}
.wb-no {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--sky);
  font-variant-numeric: tabular-nums;
}
.wb-en {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  margin-left: 8px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sky);
  margin-bottom: 14px;
}
.wb-card h3 {
  font-size: 16px;
  font-weight: 700;
}
.wb-card p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* 差异化：3 列 */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.diff-card {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 28px 28px 30px;
  border-top: 3px solid var(--blue);
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.diff-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}
.diff-card h3 {
  font-size: 17px;
  font-weight: 700;
}
.diff-card p {
  margin-top: 11px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
}

/* 行业方案：4 列 */
.ind-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.ind-card {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 26px 24px 28px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.ind-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}
.ind-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}
.ind-card p {
  margin-top: 11px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* 客户案例：3 列，大数字 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.case-card {
  background: #ffffff;
  border: 1px solid rgba(30, 90, 150, 0.08);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(20, 90, 160, 0.06);
  padding: 28px 26px 30px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.case-card:hover {
  background: #f7fbff;
  box-shadow: 0 16px 42px rgba(20, 90, 160, 0.12);
  transform: translateY(-2px);
}
.case-metric {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(120deg, #0b4a7a 0%, #0e7fd4 60%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.case-metric-l {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}
.case-card h3 {
  margin-top: 18px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
}
.case-card p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
}

@media (max-width: 1080px) {
  .wb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .ind-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .diff-grid {
    grid-template-columns: 1fr;
  }
  .case-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 560px) {
  .wb-grid {
    grid-template-columns: 1fr;
  }
  .ind-grid {
    grid-template-columns: 1fr;
  }
  .trust-chips li {
    font-size: 12px;
    padding: 8px 14px;
  }
  .case-metric {
    font-size: 30px;
  }
}

/* ==========================================================================
   入场动画
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 300px 200px;
    gap: 36px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-visual {
    height: 320px;
  }
  .hero-aside {
    padding-left: 22px;
  }
  .svc-block {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 40px;
  }
  .contact-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
  }
  .foot-top {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
  }
  .foot-top > div:last-child {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    padding-top: 26px;
  }
}

@media (max-width: 900px) {
  .brand-name {
    font-size: 15px;
  }

  .brand-partner {
    font-size: 15px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
  }

  .nav-links {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--nav);
    border-bottom: 1px solid rgba(255, 255, 255, 0.55);
    padding: 6px var(--gutter) 18px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links > a {
    height: auto;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  }

  .nav-links > a[aria-current="page"]::after {
    display: none;
  }

  .nav-links > a[aria-current="page"] {
    color: #fff;
  }

  .nav-links > a.nav-cta {
    margin-top: 14px;
    justify-content: center;
    height: 42px;
    border-bottom: 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    align-items: start;
  }

  .hero-visual {
    height: 300px;
    margin: -8px 0 0;
  }

  .hero-aside {
    border-left: 0;
    border-top: 1px solid var(--line-2);
    padding-left: 0;
    padding-top: 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 24px;
  }

  .hero-aside > div + div {
    margin-top: 0;
  }

  /* 五项信息：前四项两两成行，联系方式横跨整行 */
  .hero-aside > div:last-child {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    padding-top: 18px;
  }

  .hero-contact .v + .v {
    margin-top: 2px;
  }

  .svc-grid,
  .belief-grid,
  .team-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

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

  .intro-grid .iso-figure {
    max-width: 380px;
    margin: 0 auto;
    order: -1;
  }

  .page-head-inner {
    grid-template-columns: 1fr;
  }

  .page-head-inner .iso-figure {
    display: none;
  }

  .svc-block {
    grid-template-columns: 1fr;
    gap: 18px;
  }

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

  .contact-side {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 30px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 26px;
  }

  .tl-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (max-width: 720px) {
  :root {
    --gutter: 24px;
  }

  .brand-name {
    font-size: 13.5px;
    letter-spacing: 0;
  }

  /* 窄屏下导航 + 菜单按钮空间紧张，联名标识收起 */
  .brand-partner {
    display: none;
  }

  .brand-claim {
    font-size: 8px;
    letter-spacing: 0.16em;
  }

  .hero {
    padding: 40px 0 84px;
  }

  .hero h1 {
    font-size: 27px;
    line-height: 1.5;
  }

  .hero-lead {
    font-size: 13.5px;
    line-height: 1.95;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .hero-metrics {
    margin-top: -54px;
  }

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

  .metric {
    padding: 18px 16px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .metric:nth-child(even) {
    border-right: 0;
  }

  .metric:nth-child(n + 3) {
    border-bottom: 0;
  }

  .metric-v {
    font-size: 23px;
  }

  .metric-l {
    font-size: 12px;
  }

  .page-head {
    padding: 32px 0 36px;
  }

  .page-head h1 {
    font-size: 23px;
    line-height: 1.55;
  }

  .page-head .lead {
    font-size: 13.5px;
  }

  .section {
    padding: 44px 0;
  }

  .section.surface {
    padding: 44px 0;
  }

  .section.surface + .section {
    padding-top: 44px;
  }

  .section-head h2 {
    font-size: 19px;
    line-height: 1.6;
  }

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

  .step {
    border-right: 1px solid rgba(30, 90, 150, 0.08);
    border-bottom: 1px solid rgba(30, 90, 150, 0.08);
    padding: 20px 22px;
  }

  .step:last-child {
    border-bottom: 1px solid rgba(30, 90, 150, 0.08);
  }

  .quote-band {
    padding: 38px 0 40px;
  }

  .quote-inner blockquote {
    font-size: 17px;
    line-height: 1.8;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .svc-card,
  .belief,
  .team-card,
  .faq-item {
    padding: 22px 20px 24px;
  }

  .foot {
    padding-top: 40px;
  }

  .foot-top {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-bottom: 30px;
  }

  .foot-top > div:last-child {
    border-top: 0;
    padding-top: 0;
  }

  .foot-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .foot-legal {
    flex-wrap: wrap;
    gap: 14px;
  }

  .legal h2 {
    font-size: 16px;
  }
}