/* ==========================================================================
   base / 基础变量与全局重置
   ========================================================================== */
:root {
  --bg: #F5F6F8;
  --surface: #FFFFFF;
  --ink: #101828;
  --muted: #5B6472;
  --line: #E0E4EA;
  --accent: #F25C38;
  --accent-deep: #C93A1D;
  --hero-bg: #0F172A;
  --footer-bg: #0F172A;
  --footer-text: #D1D5DB;
  --footer-heading: #F9FAFB;
  --focus-ring: #FBBF24;
  --radius: 8px;
  --container: 1200px;
  --header-h: 68px;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

table {
  border-collapse: collapse;
  width: 100%;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 19px;
}

p {
  line-height: 1.75;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ==========================================================================
   layout / 全站骨架布局
   ========================================================================== */

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.01em;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-item:hover {
  color: var(--ink);
  background: var(--bg);
}

.nav-item.is-current {
  color: var(--accent);
  font-weight: 600;
  background: rgba(242, 92, 56, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  border-radius: 6px;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* 站点主内容 */
.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.site-main.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  padding: 18px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.breadcrumb ol,
.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb a {
  color: var(--muted);
  transition: color 0.2s ease;
}

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

.breadcrumb-sep {
  color: var(--line);
  margin: 0 2px;
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 500;
}

/* 页面标题区 */
.page-header {
  padding: 28px 0 12px;
}

.page-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
}

.page-title-block {
  padding: 24px 0 8px;
}

.page-title-inner {
  max-width: 780px;
}

.page-title-area {
  padding: 24px 0 8px;
}

.page-title-area p,
.page-title-block p,
.page-lead {
  color: var(--muted);
  font-size: 16px;
  max-width: 780px;
  margin-top: 8px;
}

/* 页脚 */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--footer-heading);
  margin-bottom: 10px;
}

.footer-brand p:not(.footer-brand-name) {
  font-size: 14px;
  color: var(--footer-text);
  max-width: 280px;
}

.footer-heading {
  font-size: 14px;
  font-weight: 600;
  color: var(--footer-heading);
  margin-bottom: 12px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--footer-text);
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

.footer-nav a:hover {
  color: var(--focus-ring);
}

.footer-note p:not(.footer-heading) {
  font-size: 14px;
  color: var(--footer-text);
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--footer-text);
  max-width: var(--container);
  margin: 0 auto;
  opacity: 0.8;
}

/* ==========================================================================
   components / 通用组件
   ========================================================================== */

/* 区块标题 */
.section-heading {
  margin-bottom: 28px;
  max-width: 780px;
}

.section-heading h2,
.section-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.section-heading p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 6px;
}

/* 图文卡片 */
.card-figure,
.hero-media,
.thought-figure,
.scene-figure,
.cooperation-note-media {
  overflow: hidden;
  background: var(--line);
}

.card-figure img,
.hero-media img,
.thought-figure img,
.scene-figure img,
.cooperation-note-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 通用文字链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.text-link:hover {
  color: var(--accent-deep);
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(3px);
}

/* FAQ 折叠 */
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  min-height: 48px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 18px 18px;
  font-size: 15px;
  color: var(--muted);
}

/* 表格通用 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.attribute-table,
.attr-table {
  min-width: 640px;
}

.attribute-table th,
.attribute-table td,
.attr-table th,
.attr-table td {
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.attribute-table thead th,
.attr-table thead th {
  background: var(--bg);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

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

.attribute-table tbody tr:hover td,
.attr-table tbody tr:hover td {
  background: rgba(242, 92, 56, 0.03);
}

/* 时间线 */
.timeline-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  counter-reset: timeline;
}

.timeline-item {
  position: relative;
  padding: 0 20px 0 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 0;
  right: 20px;
  height: 2px;
  background: var(--line);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  position: relative;
  z-index: 1;
  margin-bottom: 14px;
}

.timeline-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.timeline-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

/* 相关链接 */
.related-links,
.related-internal-links {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.related-links h2,
.related-internal-links h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
}

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

.related-link-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.related-link-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(16, 24, 40, 0.06);
}

.related-link-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.related-link-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.related-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.related-link:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

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

.related-link-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.related-link-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.related-link-card h3,
.related-link-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.related-link-card p,
.related-link-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* 卡片标签 */
.service-tags,
.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.service-tags li,
.product-tags li {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3px 8px;
  letter-spacing: 0.02em;
}

/* ==========================================================================
   pages / 首页
   ========================================================================== */

/* 首屏控制台 */
.hero-console {
  background: var(--hero-bg);
  color: var(--surface);
}

.hero-console-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px 64px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--surface);
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--footer-text);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-task-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  min-height: 48px;
}

.task-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  transform: translateX(4px);
}

.task-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 64px;
}

.task-text {
  font-size: 15px;
  color: var(--surface);
}

.hero-media {
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  width: 100%;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 服务产品图鉴 */
.service-gallery {
  padding: 64px 24px;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}

.service-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 24, 40, 0.07);
}

.service-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 6px;
  background: var(--line);
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 4px;
}

.service-audience {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.card-link:hover {
  color: var(--accent-deep);
}

.card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.card-link:hover::after {
  transform: translateX(3px);
}

/* 选型提示条 */
.selection-strip {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.selection-strip-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.selection-strip-inner p {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.strip-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--accent);
  color: var(--surface);
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.2s ease;
  min-height: 44px;
}

.strip-link:hover {
  background: var(--accent-deep);
}

/* 应用行业横条 */
.industry-strip {
  padding: 64px 24px;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}

.industry-tag-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.industry-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  transition: border-color 0.2s ease, transform 0.2s ease;
  min-height: 48px;
}

.industry-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.industry-tag:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* 制作流程时间线 */
.process-timeline {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 64px 24px;
}

.process-timeline > .section-heading {
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
}

.process-timeline .timeline-list {
  max-width: var(--container);
  margin: 0 auto;
}

/* 资料与常见问题精选 */
.resource-faq-teaser {
  padding: 64px 24px;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.teaser-column h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
}

.teaser-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.teaser-list li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: border-color 0.2s ease;
}

.teaser-list li:hover {
  border-color: var(--accent);
}

.teaser-list a {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.teaser-list a:hover {
  color: var(--accent);
}

.teaser-list p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* 服务支持 CTA */
.support-cta {
  background: var(--hero-bg);
  color: var(--surface);
}

.support-cta-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px;
  text-align: center;
}

.support-cta-inner h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--surface);
  margin-bottom: 12px;
}

.support-cta-inner p {
  font-size: 15px;
  color: var(--footer-text);
  max-width: 560px;
  margin: 0 auto 28px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--accent);
  color: var(--surface);
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.2s ease, transform 0.2s ease;
  min-height: 44px;
}

.cta-button:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
}

/* ==========================================================================
   pages / 产品中心
   ========================================================================== */

.service-product-gallery,
.attribute-comparison,
.version-tier-guide {
  margin-top: 40px;
}

.product-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 24, 40, 0.07);
}

.product-card-image {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--line);
}

.product-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 20px;
  flex: 1;
}

.product-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.product-target {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.product-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin-top: 4px;
}

.product-card .text-link {
  margin-top: auto;
  align-self: flex-start;
}

.attribute-comparison .table-scroll {
  margin-top: 8px;
}

.version-tier-guide {
  margin-bottom: 16px;
}

.tier-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tier-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.tier-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.tier-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.tier-fit {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(242, 92, 56, 0.08);
  border-radius: 4px;
  padding: 3px 10px;
  display: inline-block;
  align-self: flex-start;
  letter-spacing: 0.02em;
}

.tier-card p:not(.tier-fit) {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

/* ==========================================================================
   pages / 选型指南
   ========================================================================== */

.layout-shell {
  display: grid;
  grid-template-columns: 7fr 4fr;
  gap: 48px;
  align-items: start;
  margin-top: 24px;
}

.main-content {
  min-width: 0;
}

.sidebar-area {
  min-width: 0;
}

.selection-thought-image {
  margin-bottom: 40px;
}

.selection-thought-image h2,
.condition-judgment-cards h2,
.plan-tier-cards h2,
.faq-panel h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}

.thought-figure {
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  width: 100%;
  margin-bottom: 10px;
}

.thought-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thought-figure figcaption {
  font-size: 13px;
  color: var(--muted);
  padding: 10px 2px 0;
  line-height: 1.6;
}

.condition-judgment-cards {
  margin-bottom: 40px;
}

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

.condition-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.condition-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.condition-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

.condition-card ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.condition-card li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}

.condition-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.plan-tier-cards {
  margin-bottom: 40px;
}

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

.tier-grid .tier-card {
  padding: 20px;
}

.tier-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(242, 92, 56, 0.08);
  border-radius: 4px;
  padding: 3px 10px;
  align-self: flex-start;
  letter-spacing: 0.02em;
}

.tier-grid .tier-card p:not(.tier-tag) {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

.tier-grid .text-link {
  margin-top: auto;
  align-self: flex-start;
}

.faq-panel {
  margin-bottom: 8px;
}

/* 侧栏 */
.scope-note,
.self-check-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.scope-note h2,
.self-check-list h2 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.scope-note p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.self-check-list ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.self-check-list li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 24px;
  position: relative;
  line-height: 1.6;
}

.self-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ==========================================================================
   pages / 应用行业
   ========================================================================== */

.industry-card-grid,
.industry-attribute-table {
  margin-top: 40px;
}

.industry-card-grid h2,
.industry-attribute-table h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
}

.industry-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.industry-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.industry-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-figure {
  aspect-ratio: 3 / 2;
  border-radius: 6px;
  width: 100%;
}

.card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industry-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 4px;
}

.industry-focus,
.industry-forms {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

.industry-focus strong,
.industry-forms strong {
  color: var(--ink);
  font-weight: 600;
  margin-right: 4px;
}

.industry-attribute-table {
  margin-top: 48px;
}

.attr-table {
  min-width: 720px;
}

.content-boundary-note {
  margin-top: 40px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px;
}

.content-boundary-note h2 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.content-boundary-note p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ==========================================================================
   pages / 技术资料
   ========================================================================== */

.resource-directory-list {
  margin-top: 40px;
}

.resource-directory-list > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 24px;
}

.resource-entry {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 14px;
  transition: border-color 0.2s ease;
}

.resource-entry:hover {
  border-color: var(--accent);
}

.resource-index {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  flex-shrink: 0;
  min-width: 48px;
}

.resource-body {
  flex: 1;
  min-width: 0;
}

.resource-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.resource-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.version-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(242, 92, 56, 0.08);
  border: 1px solid rgba(242, 92, 56, 0.2);
  border-radius: 4px;
  padding: 2px 10px;
  letter-spacing: 0.02em;
}

.version-archive-note {
  margin-top: 48px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.version-archive-note h2,
.resource-cooperation-note h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.version-archive-note p,
.resource-cooperation-note p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.resource-cooperation-note {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}

.cooperation-note-text {
  min-width: 0;
}

.cooperation-note-media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  width: 100%;
}

.cooperation-note-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   pages / 服务支持
   ========================================================================== */

.cooperation-timeline,
.preparation-checklist,
.cooperation-scene,
.support-faq,
.error-correction-boundary {
  margin-top: 40px;
}

.cooperation-timeline .timeline-list {
  grid-template-columns: repeat(5, 1fr);
}

.cooperation-timeline .timeline-item::before {
  right: 20px;
}

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

.checklist-item {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease;
}

.checklist-item:hover {
  border-color: var(--accent);
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.checklist-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

.scene-figure {
  aspect-ratio: 16 / 7;
  border-radius: var(--radius);
  width: 100%;
}

.scene-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-figure figcaption {
  font-size: 13px;
  color: var(--muted);
  padding: 10px 2px 0;
  line-height: 1.6;
}

.error-correction-boundary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px;
}

.error-correction-boundary h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.error-correction-boundary p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ==========================================================================
   pages / 404
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

.error-content {
  max-width: 560px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 56px 40px;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.error-content h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 28px;
}

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--accent);
  color: var(--surface);
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.2s ease;
  min-height: 44px;
  margin-bottom: 32px;
}

.error-btn:hover {
  background: var(--accent-deep);
}

.error-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.error-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: border-color 0.2s ease, color 0.2s ease;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.error-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

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

@media (max-width: 1024px) {
  .service-card-grid,
  .product-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero-console-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-media {
    max-width: 640px;
  }

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

  .sidebar-area {
    order: 2;
  }

  .resource-cooperation-note {
    grid-template-columns: 1fr;
  }

  .cooperation-timeline .timeline-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .cooperation-timeline .timeline-item::before {
    display: none;
  }

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

  .timeline-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .timeline-item::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 2px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-item {
    padding: 12px 14px;
    font-size: 16px;
    border-radius: 6px;
  }

  .site-main.inner-main {
    padding: 0 16px 48px;
  }

  .breadcrumb {
    padding-top: 14px;
  }

  .page-title {
    font-size: 26px;
  }

  .page-title-block,
  .page-title-area {
    padding-top: 18px;
  }

  .hero-console-inner {
    padding: 40px 16px 48px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .service-gallery,
  .industry-strip,
  .resource-faq-teaser {
    padding: 48px 16px;
  }

  .process-timeline {
    padding: 48px 16px;
  }

  .support-cta-inner {
    padding: 48px 16px;
  }

  .service-card-grid,
  .product-card-grid,
  .industry-cards,
  .tier-card-list,
  .tier-grid,
  .card-grid,
  .related-link-list,
  .related-links-grid {
    grid-template-columns: 1fr;
  }

  .industry-tag-list {
    grid-template-columns: 1fr;
  }

  .resource-faq-teaser {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .timeline-list {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .timeline-item {
    padding: 0;
  }

  .timeline-number {
    width: 44px;
    height: 44px;
    font-size: 16px;
    margin-bottom: 10px;
  }

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

  .cooperation-timeline .timeline-list {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 16px 24px;
  }

  .footer-bottom {
    padding: 14px 16px;
  }

  .resource-entry {
    flex-direction: column;
    gap: 12px;
    padding: 20px;
  }

  .resource-index {
    font-size: 20px;
  }

  .resource-cooperation-note {
    padding: 24px;
  }

  .error-content {
    padding: 40px 24px;
  }

  .error-code {
    font-size: 56px;
  }

  .selection-strip-inner {
    padding: 24px 16px;
    flex-direction: column;
    align-items: flex-start;
  }

  .table-scroll {
    margin: 0 -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .attribute-table,
  .attr-table {
    min-width: 560px;
  }
}

@media (max-width: 480px) {
  .brand-name {
    font-size: 18px;
  }

  .hero-copy h1 {
    font-size: 24px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .task-card {
    padding: 12px 14px;
  }

  .task-label {
    min-width: 56px;
    font-size: 13px;
  }

  .task-text {
    font-size: 14px;
  }

  .section-heading h2,
  .section-title {
    font-size: 22px;
  }

  .page-title {
    font-size: 24px;
  }

  .footer-inner {
    padding: 32px 16px 20px;
  }
}