/* ============================================================
   糖心vlgo 企业官网 - 全站样式表
   视觉方向：柔和科技风 · 浅灰白底 · 青绿主色
   断点：768px
   ============================================================ */

/* ============================================================
   Base - 基础样式、变量、重置
   ============================================================ */
:root {
  --color-primary: #0F766E;
  --color-secondary: #155E75;
  --color-bg: #F5F7F6;
  --color-text: #1F2937;
  --color-border: #E5E7EB;
  --color-white: #FFFFFF;
  --color-text-light: #4B5563;
  --color-text-muted: #6B7280;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  --container-width: 1140px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --transition-base: 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-secondary);
}

ul,
ol {
  list-style: none;
}

strong {
  font-weight: 600;
}

/* 正文最大宽度 */
p {
  max-width: 70ch;
}

/* ============================================================
   Layout - 全站骨架、容器、页头、页脚
   ============================================================ */

/* 全站容器 */
.site-main,
.site-footer .footer-grid,
.header-inner {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* -------------------- 页头 -------------------- */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

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

.brand-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex: 1;
  justify-content: flex-end;
}

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.06);
}

.nav-list li a.is-current {
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.08);
  font-weight: 600;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: background-color var(--transition-base);
}

.header-cta:hover {
  color: var(--color-white);
  background-color: var(--color-secondary);
}

.header-cta.is-current {
  background-color: var(--color-secondary);
}

/* 汉堡按钮，桌面端隐藏 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 10px;
  gap: 4px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
}

/* -------------------- 页脚 -------------------- */
.site-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 56px;
  padding-bottom: 56px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--color-text-light);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-about p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  max-width: 36ch;
}

.footer-about p strong {
  display: block;
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.footer-boundary {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  max-width: none;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* -------------------- 面包屑 -------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

.breadcrumb-sep {
  color: var(--color-border);
}

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

/* -------------------- 内页通用骨架 -------------------- */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.page-header {
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 48px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 70ch;
}

/* -------------------- 主内容区 -------------------- */
.site-main {
  min-height: 60vh;
}

.home-main {
  max-width: none;
  padding: 0;
}

/* ============================================================
   Components - 通用组件
   ============================================================ */

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

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

.btn-primary:hover {
  color: var(--color-white);
  background-color: var(--color-secondary);
}

.btn-secondary {
  color: var(--color-primary);
  background-color: transparent;
  border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
  color: var(--color-secondary);
  border-color: var(--color-secondary);
  background-color: rgba(15, 118, 110, 0.04);
}

/* 区块标题 */
.section-heading {
  margin-bottom: 32px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 70ch;
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 70ch;
}

/* 文本链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
}

.text-link::after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-base);
}

.text-link:hover::after {
  transform: rotate(45deg) translate(2px, -2px);
}

/* 内容图片 */
.content-media {
  margin: 24px 0;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 8px;
  text-align: center;
}

.content-media-inline {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* 表格 */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--color-text);
  background-color: rgba(15, 118, 110, 0.04);
}

td {
  color: var(--color-text-light);
}

/* FAQ 折叠 */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background-color: var(--color-white);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 70ch;
}

/* 相关链接（页面底部） */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 32px 0 0;
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-text-light);
}

.related-links-item:hover {
  color: var(--color-primary);
}

/* 链接卡片 */
.related-card {
  display: block;
  padding: 20px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.related-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: none;
}

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

/* ============================================================
   Pages - 首页
   ============================================================ */

/* -------------------- Hero 首屏 -------------------- */
.hero-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.hero-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px 56px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
  max-width: 18ch;
}

.hero-lead {
  font-size: 17px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 55ch;
}

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

.hero-needs {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
}

.hero-needs .section-title {
  font-size: 17px;
  margin-bottom: 12px;
}

.need-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 6px;
}

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

.hero-media {
  position: relative;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-figure img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* -------------------- 定位说明带 -------------------- */
.positioning-strip {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 32px 24px;
}

.positioning-strip p {
  max-width: var(--container-width);
  margin: 0 auto;
  text-align: center;
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 70ch;
}

/* -------------------- 服务项目速览 -------------------- */
.services-overview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px 32px;
}

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

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.service-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 4px;
}

.service-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-light);
  flex-grow: 1;
  max-width: none;
}

.service-card a {
  font-size: 14px;
  font-weight: 600;
  align-self: flex-start;
}

/* -------------------- 行业方案摘要 -------------------- */
.industry-summary {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
}

.industry-summary .section-heading,
.industry-summary .industry-card-grid {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

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

.industry-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition-base);
}

.industry-card:hover {
  border-color: var(--color-primary);
}

.industry-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.industry-card p {
  font-size: 14px;
  color: var(--color-text-light);
  flex-grow: 1;
  max-width: none;
}

.industry-card a {
  font-size: 14px;
  font-weight: 600;
  align-self: flex-start;
}

/* -------------------- 制作流程四步骤 -------------------- */
.process-overview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px 32px;
}

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

.process-steps li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  transition: border-color var(--transition-base);
}

.process-steps li:hover {
  border-color: var(--color-primary);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}

.process-steps h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-steps p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: none;
}

.process-overview > .text-link {
  margin-top: 32px;
}

/* -------------------- 需求入口双卡 -------------------- */
.entry-cards {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 64px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.entry-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.entry-card h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.entry-card p {
  font-size: 15px;
  color: var(--color-text-light);
  flex-grow: 1;
  max-width: 50ch;
}

.entry-card .btn-primary {
  margin-top: 8px;
}

/* ============================================================
   Pages - 服务项目 services.html
   ============================================================ */

.services-list {
  margin-bottom: 56px;
}

.services-list > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
}

.service-item {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.service-item:first-of-type {
  padding-top: 0;
}

.service-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.service-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.service-scene {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  max-width: 60ch;
}

.service-deliverables {
  margin-bottom: 12px;
}

.service-deliverables h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.service-deliverables ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.service-deliverables ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.service-cycle {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* 服务选择引导 */
.service-guide {
  margin-bottom: 56px;
}

.guide-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
}

.guide-table {
  min-width: 640px;
}

/* 服务交付标准 */
.service-standards {
  margin-bottom: 56px;
}

.standards-list {
  counter-reset: standard;
  margin-bottom: 24px;
}

.standards-list li {
  position: relative;
  padding: 12px 0 12px 40px;
  font-size: 15px;
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border);
  max-width: 70ch;
}

.standards-list li::before {
  counter-increment: standard;
  content: counter(standard);
  position: absolute;
  left: 0;
  top: 12px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 50%;
}

.service-standards > p:last-of-type {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 70ch;
}

.service-standards > p:last-of-type a {
  font-weight: 600;
}

/* ============================================================
   Pages - 行业方案 industry.html
   ============================================================ */

.industry-table-section {
  margin-bottom: 56px;
}

.industry-table-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.industry-table-section > p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 70ch;
}

.industry-table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
  overflow: hidden;
}

/* 行业方案卡片 */
.industry-solutions-section {
  margin-bottom: 56px;
}

.industry-solutions-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.industry-solutions-section > p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 70ch;
}

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

.solution-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.solution-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.solution-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  padding: 20px 20px 0;
}

.solution-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.solution-card p {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 12px 20px 0;
  max-width: none;
}

.solution-card p:last-of-type {
  padding-bottom: 20px;
  margin-top: auto;
}

.solution-card p strong {
  display: block;
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 4px;
}

/* 推荐入口 */
.industry-cta-section {
  margin-bottom: 56px;
}

.industry-cta-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.industry-cta-section > p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 70ch;
}

.cta-link-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cta-link-card {
  display: block;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.cta-link-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.cta-card-title {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.cta-card-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================================
   Pages - 制作流程 process.html
   ============================================================ */

.section-block {
  margin-bottom: 56px;
}

.section-block > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

/* 流程时间线 */
.timeline-phase {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.timeline-phase:first-of-type {
  border-top: 1px solid var(--color-border);
}

.phase-meta {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.phase-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.phase-meta h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  padding-top: 6px;
}

.phase-content p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 8px;
  max-width: 65ch;
}

.phase-content p:last-child {
  margin-bottom: 0;
}

/* 交付标准 */
.standard-list {
  counter-reset: standard;
}

.standard-list li {
  position: relative;
  padding: 16px 0 16px 48px;
  border-bottom: 1px solid var(--color-border);
}

.standard-list li::before {
  counter-increment: standard;
  content: counter(standard);
  position: absolute;
  left: 0;
  top: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50%;
}

.standard-list li h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.standard-list li p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: 65ch;
}

/* FAQ 预览 */
.faq-preview-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.faq-preview-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
}

.faq-preview-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.faq-preview-item p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: none;
}

/* 链接卡片 */
.link-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.link-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.link-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.link-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: none;
}

.link-card a {
  font-weight: 600;
  margin-top: 8px;
}

/* ============================================================
   Pages - 需求指南 guide.html
   ============================================================ */

.guide-block {
  margin-bottom: 48px;
}

.guide-block .section-title {
  font-size: 20px;
  margin-bottom: 8px;
}

.guide-block .section-intro {
  margin-bottom: 20px;
}

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

.checklist-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.checklist-item ul li {
  position: relative;
  padding: 4px 0 4px 18px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.checklist-item ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* 匹配建议表 */
.match-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
}

.match-table {
  min-width: 640px;
}

/* 下一步入口 */
.next-step-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.next-step-card {
  display: block;
  padding: 20px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.next-step-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.next-step-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.next-step-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: none;
}

/* 侧栏相关链接 */
aside.related-links {
  margin-top: 48px;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: block;
}

.related-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

aside.related-links ul li {
  margin-bottom: 8px;
}

aside.related-links ul li a {
  font-size: 14px;
  color: var(--color-text-light);
}

aside.related-links ul li a:hover {
  color: var(--color-primary);
}

/* 指南配图 */
.guide-figure {
  margin: 48px 0 0;
}

.guide-figure img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.guide-figure figcaption {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 8px;
  text-align: center;
}

/* ============================================================
   Pages - 常见问题 faq.html
   ============================================================ */

.faq-section {
  margin-bottom: 56px;
}

.faq-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.faq-list {
  margin-top: 24px;
}

/* 提问入口 */
.ask-entry {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 56px;
}

.ask-entry h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.ask-entry-content p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  max-width: 65ch;
}

.ask-entry-content a {
  display: inline-block;
  margin-top: 8px;
  font-weight: 600;
}

/* ============================================================
   Pages - 关于我们 about.html
   ============================================================ */

.about-section {
  margin-bottom: 56px;
}

.about-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
}

/* 定位说明 */
.positioning-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.positioning-text p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  max-width: 60ch;
}

.positioning-text p:last-child {
  margin-bottom: 0;
}

.about-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.about-figure figcaption {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 8px;
  text-align: center;
}

/* 工作方式 */
.work-mode-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.work-mode-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition-base);
}

.work-mode-card:hover {
  border-color: var(--color-primary);
}

.work-mode-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.work-mode-card p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: none;
}

/* 业务原则 */
.principles-list {
  counter-reset: principle;
}

.principles-list li {
  position: relative;
  padding: 16px 0 16px 48px;
  border-bottom: 1px solid var(--color-border);
}

.principles-list li::before {
  counter-increment: principle;
  content: counter(principle);
  position: absolute;
  left: 0;
  top: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50%;
}

.principles-list li h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.principles-list li p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: 65ch;
}

/* 内容边界 */
.about-boundary {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.about-boundary p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  max-width: 65ch;
}

.about-boundary p:last-child {
  margin-bottom: 0;
}

/* 合作流程 */
.cooperation-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.cooperation-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}

.cooperation-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.cooperation-step p {
  font-size: 14px;
  color: var(--color-text-light);
  max-width: none;
}

.about-cta {
  text-align: center;
  padding-top: 16px;
}

/* 相关链接（关于页） */
nav.related-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 32px 0 0;
  border-top: 1px solid var(--color-border);
}

.related-link {
  display: block;
  padding: 20px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.related-link:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.related-link-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.related-link-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================================
   Pages - 404 页面
   ============================================================ */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 300px);
  padding: 48px 24px;
}

.error-section {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.error-section p {
  font-size: 15px;
  color: var(--color-text-light);
  margin: 0 auto 24px;
  max-width: 40ch;
}

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

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.error-btn:first-child {
  color: var(--color-white);
  background-color: var(--color-primary);
}

.error-btn:first-child:hover {
  background-color: var(--color-secondary);
}

.error-btn:last-child {
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.error-btn:last-child:hover {
  color: var(--color-secondary);
  border-color: var(--color-secondary);
  background-color: rgba(15, 118, 110, 0.04);
}

/* ============================================================
   Responsive - 响应式
   ============================================================ */

@media (max-width: 1024px) {
  /* 服务卡片 4 -> 2 */
  .service-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 行业卡片 3 -> 2 */
  .industry-card-grid,
  .solution-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 流程步骤 4 -> 2 */
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 关于页合作流程 3 -> 2 */
  .cooperation-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 关于页相关链接 3 -> 2 */
  nav.related-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* -------------------- 页头 -------------------- */
  .header-inner {
    height: auto;
    min-height: 60px;
    padding-top: 8px;
    padding-bottom: 8px;
    flex-wrap: wrap;
  }

  .brand-text {
    font-size: 20px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    width: 100%;
    padding: 8px 0;
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
  }

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

  .nav-list li a {
    padding: 12px 8px;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .header-cta {
    display: none;
  }

  /* -------------------- 页脚 -------------------- */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 40px;
  }

  /* -------------------- 首页 -------------------- */
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 24px 32px;
  }

  .hero-copy h1 {
    font-size: 26px;
  }

  .hero-figure img {
    height: 240px;
  }

  .positioning-strip {
    padding: 24px;
  }

  .services-overview,
  .process-overview {
    padding-top: 48px;
  }

  .entry-cards {
    grid-template-columns: 1fr;
    padding: 32px 24px 48px;
  }

  /* -------------------- 内页 -------------------- */
  .page-header {
    padding: 32px 0 24px;
    margin-bottom: 40px;
  }

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

  .inner-main {
    padding-bottom: 32px;
  }

  .site-footer {
    margin-top: 56px;
  }

  /* -------------------- 服务项目 -------------------- */
  .service-item {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-media img {
    height: 200px;
  }

  /* -------------------- 行业方案 -------------------- */
  .industry-table {
    min-width: 600px;
  }

  .industry-table-section .guide-table-wrap {
    overflow-x: auto;
  }

  /* -------------------- 制作流程 -------------------- */
  .timeline-phase {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .phase-meta h3 {
    padding-top: 0;
  }

  /* -------------------- 需求指南 -------------------- */
  .checklist-grid {
    grid-template-columns: 1fr;
  }

  /* -------------------- 关于我们 -------------------- */
  .positioning-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .work-mode-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  /* 容器边距收窄 */
  .site-main,
  .site-footer .footer-grid,
  .header-inner,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-layout {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }

  /* 卡片网格全部单列 */
  .service-card-grid,
  .industry-card-grid,
  .process-steps,
  .solution-cards,
  .cta-link-cards,
  .related-cards,
  .faq-preview-list,
  .link-card-grid,
  .next-step-grid,
  .cooperation-steps,
  nav.related-links {
    grid-template-columns: 1fr;
  }

  /* 页脚单列 */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* 表格横向滚动 */
  .guide-table-wrap,
  .match-table-wrap,
  .industry-table-section {
    overflow-x: auto;
  }

  .guide-table,
  .match-table,
  .industry-table {
    min-width: 520px;
  }

  /* 服务卡片图片 */
  .service-card img {
    height: 160px;
  }

  .solution-media img {
    height: 160px;
  }

  .service-media img {
    height: 180px;
  }
}