/* SmartWork · 首页样式
 * 与原技术文档 assets/style.css 完全隔离，首页改版不影响文档页。
 * 视觉方向：浅色轻盈、蓝紫渐变、毛玻璃导航、细网格与柔和光球。 */

:root {
  --brand: #1677ff;
  --brand-2: #6f5cff;
  --brand-3: #b35cff;
  --ink: #111827;
  --ink-2: #3f4756;
  --ink-3: #727b8d;
  --page: #f8faff;
  --dark: #0b1020;
  --content: 1180px;

  --radius-sm: 12px;
  --radius: 22px;
  --radius-lg: 32px;
  --shadow-nav: 0 10px 40px rgba(17, 24, 39, 0.08);
  --shadow-card: 0 6px 24px rgba(17, 24, 39, 0.06);
  --shadow-modal: 0 30px 80px rgba(11, 16, 32, 0.28);
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
}

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

.container {
  width: min(var(--content), calc(100% - 48px));
  margin: 0 auto;
}

/* ---------- 无障碍：跳过链接与焦点样式 ---------- */

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 120;
  padding: 10px 18px;
  background: var(--ink);
  color: #fff;
  border-radius: 0 0 10px 10px;
  transition: top 0.2s ease;
}

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

/* ---------- 悬浮导航 ---------- */

.site-header {
  position: fixed;
  inset: 16px 0 auto;
  z-index: 90;
  padding: 0 16px;
}

.site-header-inner {
  width: min(var(--content), 100%);
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 14px 0 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled .site-header-inner {
  background: rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-nav);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  white-space: nowrap;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2) 55%, var(--brand-3));
  box-shadow: 0 6px 16px rgba(111, 92, 255, 0.4);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
}

.site-nav > a {
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--ink-2);
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav > a:hover {
  background: rgba(22, 119, 255, 0.08);
  color: var(--brand);
}

.site-nav > a.btn {
  margin-left: 6px;
}

.nav-trigger {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
}

.nav-trigger-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.nav-trigger-bars i {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease,
    border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  box-shadow: 0 12px 30px rgba(22, 119, 255, 0.32);
}

.btn-primary:hover {
  box-shadow: 0 16px 36px rgba(111, 92, 255, 0.38);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.75);
  border-color: rgba(17, 24, 39, 0.14);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 64px) 0 72px;
  background:
    radial-gradient(1200px 520px at 82% -8%, rgba(179, 92, 255, 0.16), transparent 60%),
    radial-gradient(900px 480px at 8% 6%, rgba(22, 119, 255, 0.16), transparent 62%),
    var(--page);
}

.hero-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(46px);
  opacity: 0.55;
}

.orb-a {
  width: 340px;
  height: 340px;
  top: -80px;
  right: 8%;
  background: radial-gradient(circle at 30% 30%, rgba(179, 92, 255, 0.85), transparent 70%);
}

.orb-b {
  width: 280px;
  height: 280px;
  bottom: -60px;
  left: 6%;
  background: radial-gradient(circle at 40% 40%, rgba(22, 119, 255, 0.75), transparent 70%);
}

/* 一屏一个主视觉：Hero 只保留两个光球，避免装饰堆叠 */

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(17, 24, 39, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(22, 119, 255, 0.1);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.hero h1 {
  font-size: clamp(34px, 4.4vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-wrap: balance;
  background: linear-gradient(120deg, var(--ink) 30%, var(--brand-2) 75%, var(--brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 19px;
  color: var(--ink-2);
  max-width: 34em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 22px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  color: var(--ink-3);
  font-size: 15px;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-points li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
}

/* 工作台预览 */
.workbench {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 30px 70px rgba(17, 24, 39, 0.14);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}

.workbench-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(17, 24, 39, 0.07);
  background: rgba(248, 250, 255, 0.9);
}

.workbench-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e3e8f2;
}

.workbench-bar span:nth-child(1) { background: #ff6b6b; }
.workbench-bar span:nth-child(2) { background: #ffc53d; }
.workbench-bar span:nth-child(3) { background: #3ecf8e; }

.workbench-bar b {
  margin-left: 8px;
  font-size: 14px;
  color: var(--ink-3);
  font-weight: 600;
}

.workbench-body {
  padding: 22px;
  display: grid;
  gap: 14px;
}

.chat-bubble {
  max-width: 92%;
  padding: 15px 19px;
  border-radius: 16px;
  font-size: 17px;
  line-height: 1.6;
}

.chat-in {
  background: #f1f4fa;
  color: var(--ink-2);
  border-bottom-left-radius: 6px;
}

.chat-out {
  margin-left: auto;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  border-bottom-right-radius: 6px;
  box-shadow: 0 12px 26px rgba(22, 119, 255, 0.28);
}

.workbench-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.workbench-stats span {
  padding: 7px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(17, 24, 39, 0.08);
  color: var(--brand-2);
  font-size: 13.5px;
  font-weight: 600;
}

/* ---------- 信任条 ---------- */

.trust {
  border-block: 1px solid rgba(17, 24, 39, 0.07);
  background: rgba(255, 255, 255, 0.7);
}

.trust-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 26px 0;
}

.trust-item {
  display: grid;
  gap: 2px;
  padding: 6px 18px;
  border-left: 3px solid rgba(22, 119, 255, 0.35);
}

.trust-item b {
  font-size: 16px;
}

.trust-item span {
  font-size: 14px;
  color: var(--ink-3);
}

.trust-industries {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 18px 0 24px;
  border-top: 1px dashed rgba(17, 24, 39, 0.12);
}

.industries-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}

.trust-industries ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.trust-industries li {
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(17, 24, 39, 0.08);
  color: var(--ink-2);
  font-size: 13.5px;
}

/* ---------- 通用区块 ---------- */

.section {
  padding: 96px 0;
  scroll-margin-top: calc(var(--header-h) + 40px);
}

.section-alt {
  background: linear-gradient(180deg, #fff, var(--page));
}

.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
}

.section-lead {
  font-size: 17px;
  color: var(--ink-2);
  margin: 0;
}

.grid {
  display: grid;
  gap: 22px;
}

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

.group + .group {
  margin-top: 44px;
}

.group-title {
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  font-weight: 700;
  margin-bottom: 18px;
}

/* ---------- 产品卡片 ---------- */

.card {
  display: flex;
  flex-direction: column;
  padding: 26px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(17, 24, 39, 0.06);
  box-shadow: var(--shadow-card);
  color: inherit;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(17, 24, 39, 0.11);
  border-color: rgba(22, 119, 255, 0.45);
}

.card-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.12), rgba(179, 92, 255, 0.15));
  color: var(--brand-2);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 2px;
}

.card-sub {
  flex: none;
  margin: 0 0 10px;
  color: var(--brand);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.card p {
  color: var(--ink-2);
  font-size: 14.5px;
  flex: 1;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
}

.card-cta i {
  font-style: normal;
  transition: transform 0.25s ease;
}

.card:hover .card-cta i {
  transform: translateX(4px);
}

/* 组合引导卡：不是产品，只把用户带到解决方案 */
.card-more {
  background: linear-gradient(160deg, rgba(22, 119, 255, 0.06), rgba(179, 92, 255, 0.09));
  border-style: dashed;
  border-color: rgba(22, 119, 255, 0.3);
}

.card-more-arrow {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 14px;
  background: #fff;
  color: var(--brand-2);
  font-size: 18px;
  box-shadow: var(--shadow-card);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag-list li {
  padding: 5px 11px;
  border-radius: 999px;
  background: #f2f5fb;
  color: var(--ink-3);
  font-size: 12.5px;
}

/* ---------- 解决方案：左侧标签 + 右侧内容 ---------- */

.solutions {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.solution-tabs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-tab {
  text-align: left;
  padding: 16px 20px;
  border: 1px solid transparent;
  border-radius: 16px;
  background: transparent;
  color: var(--ink-2);
  font-size: 17px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.solution-tab:hover {
  background: rgba(22, 119, 255, 0.06);
  color: var(--brand);
}

.solution-tab.is-active {
  background: #fff;
  border-color: rgba(22, 119, 255, 0.4);
  color: var(--brand);
  box-shadow: var(--shadow-card);
}

.solution-panels {
  min-height: 250px;
}

.solution-panel {
  padding: 34px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid rgba(17, 24, 39, 0.06);
  box-shadow: var(--shadow-card);
}

/* 有 JS 才折叠面板；禁用 JS 时标签隐藏、三个面板全部可读 */
html.js .solution-panel {
  display: none;
}

html.js .solution-panel.is-active {
  display: block;
}

html:not(.js) .solution-tabs {
  display: none;
}

.solution-panel h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.solution-panel p {
  color: var(--ink-2);
  font-size: 16px;
  margin: 0 0 20px;
}

.module-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.module-chain span {
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.1), rgba(179, 92, 255, 0.13));
  color: var(--brand-2);
  font-size: 14px;
  font-weight: 600;
}

.module-chain i {
  font-style: normal;
  color: var(--ink-3);
}

.text-link {
  font-weight: 600;
  color: var(--brand);
}

.text-link i {
  font-style: normal;
  display: inline-block;
  transition: transform 0.25s ease;
}

.text-link:hover i {
  transform: translateX(4px);
}

/* ---------- 深色平台区 ---------- */

.platform {
  background:
    radial-gradient(900px 420px at 15% 0%, rgba(111, 92, 255, 0.35), transparent 60%),
    radial-gradient(900px 420px at 85% 100%, rgba(22, 119, 255, 0.3), transparent 60%),
    var(--dark);
  color: #e8ecf7;
  scroll-margin-top: calc(var(--header-h) + 40px);
}

.platform .section-head h2 {
  color: #fff;
}

.platform .section-lead {
  color: #a9b3cb;
}

.platform .eyebrow {
  background: rgba(255, 255, 255, 0.1);
  color: #9fb6ff;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 30px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.flow-node {
  position: relative;
  padding: 24px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.flow-node:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -24px;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.45);
  font-size: 18px;
}

.flow-step {
  display: block;
  margin-bottom: 10px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #9fb6ff;
}

.flow-node b {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  color: #fff;
}

.flow-node span:last-child {
  font-size: 14px;
  line-height: 1.6;
  color: #a9b3cb;
}

.flow-note {
  margin: 30px 0 0;
  padding: 18px 22px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  color: #c6cee1;
  font-size: 15px;
}

/* ---------- 使用流程 ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  counter-reset: step;
}

.step {
  padding: 26px 24px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(17, 24, 39, 0.06);
  box-shadow: var(--shadow-card);
}

.step-num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}

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

.step p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------- 联系与转化 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.contact-lines {
  margin-top: 20px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.9;
}

.contact-lines p {
  margin: 0;
}

.contact-lines a {
  color: var(--brand);
  font-weight: 600;
  text-decoration: none;
}

.contact-lines a:hover {
  text-decoration: underline;
}

/* ---------- 页脚 ---------- */

.site-footer {
  background: var(--dark);
  color: #9aa4bd;
  padding: 56px 0 30px;
  font-size: 14.5px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.footer-brand b {
  color: #fff;
  font-size: 17px;
}

.footer-brand p {
  margin: 8px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 10px 18px;
}

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

.footer-bottom {
  padding-top: 20px;
}

/* ---------- 渐入动画 ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 不支持 IntersectionObserver 或 JS 失效时，直接显示内容 */
.no-js .reveal,
html:not(.js) .reveal {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px;
  }

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

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

  .flow {
    gap: 22px;
  }

  .flow-node {
    padding: 20px 16px;
  }

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

@media (max-width: 900px) {
  .site-header {
    inset: 12px 0 auto;
  }

  .site-header-inner {
    position: relative;
    flex-wrap: wrap;
    height: auto;
    min-height: 60px;
    padding: 10px 12px 10px 18px;
    border-radius: 26px;
  }

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

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 4px 8px;
    border-top: 1px solid rgba(17, 24, 39, 0.08);
    margin-top: 10px;
  }

  .site-nav > a {
    padding: 12px 14px;
    border-radius: 14px;
  }

  .site-nav > a.btn {
    margin-left: 0;
    margin-top: 6px;
    text-align: center;
    justify-content: center;
  }

  body.nav-open .site-nav {
    display: flex;
  }

  body.nav-open {
    overflow: hidden;
  }

  .hero {
    padding-top: calc(var(--header-h) + 64px);
  }

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

  .hero-visual {
    order: 2;
  }

  .trust-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 8px;
  }

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

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  /* 解决方案：标签横排在上，内容在下 */
  .solutions {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .solution-tabs {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .solution-tab {
    padding: 12px 18px;
    font-size: 16px;
  }

  .solution-panels {
    min-height: 0;
  }

  /* 深色区协同流程改为纵向 */
  .flow {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .flow-node:not(:last-child)::after {
    content: "↓";
    top: auto;
    right: auto;
    bottom: -28px;
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 620px) {
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding: calc(var(--header-h) + 48px) 0 64px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 17px;
  }

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

  .grid-3,
  .grid-4,
  .steps,
  .trust-inner,
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .workbench-stats span {
    padding: 6px 11px;
    font-size: 12.5px;
  }

  .solution-panel {
    padding: 26px 22px;
  }

  .solution-panel h3 {
    font-size: 21px;
  }
}

@media (max-width: 360px) {
  .brand-name {
    font-size: 15px;
  }

  .hero h1 {
    font-size: 30px;
  }
}

/* ---------- 减少动画偏好 ---------- */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

  .btn:hover,
  .card:hover {
    transform: none;
  }
}