/* ============================================================
   BASE — 全站基础变量、重置与骨架
   ============================================================ */
:root {
  --color-primary: #0f2a43;
  --color-accent: #16a085;
  --color-bg-soft: #f4f7f9;
  --color-white: #ffffff;
  --color-text: #4a5568;
  --color-heading: #1a2b3c;
  --color-border: #e2e8f0;
  --color-muted: #718096;
  --color-accent-soft: #e6f4f0;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 42, 67, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 42, 67, 0.1);
  --shadow-lg: 0 8px 24px rgba(15, 42, 67, 0.12);
  --transition-base: 0.2s ease;
}

*,
*::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-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: #12806b;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.35;
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 19px;
}

p {
  margin-bottom: 0.75rem;
}

/* ============================================================
   LAYOUT — 全站骨架布局
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1 0 auto;
}

/* 页头 */
.site-header {
  background: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0;
}

.brand-slogan {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
}

/* 导航 */
.site-nav {
  display: block;
}

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

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-list li a.is-current {
  color: var(--color-white);
  background: var(--color-accent);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* 页脚 */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0;
}

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

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  max-width: 320px;
}

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

.footer-col h3 {
  font-size: 15px;
  color: var(--color-white);
  margin-bottom: 14px;
  font-weight: 600;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom p {
  margin: 0;
}

/* 内页统一骨架 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
  flex: 1 0 auto;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  padding: 20px 0 0;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  padding: 28px 0 32px;
}

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

.page-description {
  font-size: 16px;
  color: var(--color-text);
  max-width: 760px;
  line-height: 1.7;
}

/* ============================================================
   COMPONENTS — 通用组件
   ============================================================ */
.section-heading {
  margin-bottom: 28px;
}

.section-heading h2 {
  font-size: 26px;
  margin-bottom: 10px;
}

.section-heading p {
  color: var(--color-text);
  max-width: 680px;
}

.section-title {
  font-size: 22px;
  margin-bottom: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 按钮 */
.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-accent);
  transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
  min-height: 44px;
  line-height: 1.4;
  text-align: center;
}

.btn-primary:hover {
  background: #12806b;
  border-color: #12806b;
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--color-white);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: background var(--transition-base), border-color var(--transition-base);
  min-height: 44px;
  line-height: 1.4;
  text-align: center;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-link {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 15px;
  min-height: 44px;
  line-height: 44px;
  padding: 0 4px;
}

.btn-link:hover {
  color: #12806b;
}

/* 图片容器 */
figure {
  margin: 0;
}

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

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

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  min-height: 48px;
  display: flex;
  align-items: center;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item[open] {
  box-shadow: var(--shadow-sm);
}

.faq-content {
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.faq-content p {
  margin-bottom: 0.5rem;
}

/* 主题分类 */
.topic-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.topic-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base);
}

.topic-list li a:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

/* 字段字典 */
.field-dict {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.dict-item {
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  border-left: 3px solid var(--color-accent);
}

.dict-item dt {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.dict-item dd {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

/* 来源说明 */
.source-note {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-muted);
  border-left: 3px solid var(--color-accent);
}

.source-note p {
  margin: 0;
}

/* ============================================================
   PAGES — 首页
   ============================================================ */
.home-main {
  width: 100%;
}

/* Hero */
.hero-section {
  background: var(--color-primary);
  padding: 64px 0 0;
}

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

.hero-content h1 {
  font-size: 38px;
  color: var(--color-white);
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-media {
  position: relative;
}

.hero-figure {
  width: 100%;
  height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

/* 方法目录 */
.hero-directory {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

.hero-directory h2 {
  color: var(--color-white);
  font-size: 22px;
  margin-bottom: 20px;
}

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

.directory-card {
  display: block;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.directory-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.directory-card h3 {
  color: var(--color-white);
  font-size: 17px;
  margin-bottom: 8px;
}

.directory-card p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  margin: 0;
  line-height: 1.6;
}

/* 首页内容图 */
.content-media-primary {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

.content-media-primary img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.content-media-primary figcaption {
  padding: 12px 0 0;
  font-size: 14px;
  color: var(--color-muted);
  text-align: center;
}

/* 服务概览 */
.services-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.icon-symbol {
  font-size: 26px;
  color: var(--color-accent);
  font-weight: 700;
}

.service-card h3 {
  font-size: 19px;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 15px;
  line-height: 1.7;
  flex: 1;
}

.service-card > a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  margin-top: 16px;
  min-height: 44px;
  line-height: 44px;
}

/* 流程 */
.process-section {
  background: var(--color-bg-soft);
  padding: 64px 0;
}

.process-section > div:first-child {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.process-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.process-step {
  display: flex;
  gap: 20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.process-step:hover {
  box-shadow: var(--shadow-md);
}

.step-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 4px;
}

.step-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.step-detail p {
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 4px;
  color: var(--color-text);
}

.step-detail p:first-child {
  font-weight: 600;
  color: var(--color-heading);
}

/* FAQ 区块 */
.faq-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.faq-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
}

.faq-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 24px;
}

.aside-card {
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 24px;
}

.aside-card h3 {
  font-size: 17px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.aside-card .topic-list li a {
  padding: 8px 4px;
}

/* CTA 横幅 */
.cta-banner {
  background: var(--color-accent);
  padding: 48px 24px;
}

.cta-content {
  max-width: var(--container-width);
  margin: 0 auto;
  text-align: center;
}

.cta-content h2 {
  color: var(--color-white);
  font-size: 28px;
  margin-bottom: 14px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-actions .btn-secondary {
  border-color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   PAGES — 产品中心
   ============================================================ */
.product-section {
  margin-bottom: 48px;
}

.product-section > h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.filter-btn {
  padding: 10px 20px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
  min-height: 44px;
  line-height: 1.4;
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.product-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 640px;
}

.product-table th,
.product-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.product-table th {
  background: var(--color-bg-soft);
  font-weight: 600;
  color: var(--color-heading);
  white-space: nowrap;
}

.product-table tbody tr:last-child td {
  border-bottom: none;
}

.product-table tbody tr:hover td {
  background: var(--color-bg-soft);
}

.product-table td:last-child a {
  font-weight: 600;
  white-space: nowrap;
}

/* 产品配图 */
.product-media {
  margin: 40px 0;
}

.product-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.product-media figcaption {
  padding: 12px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

/* 字段字典 */
.field-dict-section {
  margin-bottom: 40px;
}

.field-dict-section > h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

/* 支持入口 */
.support-entry {
  margin-top: 40px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
}

.support-entry p {
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
}

.support-entry p a {
  font-weight: 600;
  margin-right: 20px;
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
}

/* ============================================================
   PAGES — 选型指南
   ============================================================ */
.step-list {
  margin-bottom: 48px;
}

.step-list > h2 {
  font-size: 24px;
  margin-bottom: 28px;
}

.step-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.step-item:last-child {
  border-bottom: none;
}

.step-item::before {
  content: "";
  position: absolute;
  left: 31px;
  top: 64px;
  bottom: -28px;
  width: 2px;
  background: var(--color-accent-soft);
}

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

.step-item > h3 {
  grid-column: 1 / -1;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.step-item > h3::before {
  content: attr(data-step);
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-content {
  grid-column: 2;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.step-input,
.step-process,
.step-result {
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.step-input h4,
.step-process h4,
.step-result h4 {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-weight: 600;
}

.step-input p,
.step-process p,
.step-result p {
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
}

/* CTA 入口 */
.cta-entry {
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 40px;
}

.cta-entry > h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 16px;
  line-height: 1.7;
}

.cta-content p a {
  font-weight: 600;
  margin-right: 18px;
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
}

/* 指南配图 */
.guide-media {
  margin: 32px 0;
}

.guide-media img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.guide-media figcaption {
  padding: 12px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

/* ============================================================
   PAGES — 应用行业
   ============================================================ */
.industry-section {
  margin-bottom: 48px;
}

.industry-section > h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.section-intro {
  font-size: 16px;
  max-width: 720px;
  margin-bottom: 28px;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.industry-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card-figure {
  height: 180px;
  overflow: hidden;
}

.card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.industry-card:hover .card-figure img {
  transform: scale(1.04);
}

.card-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.industry-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--color-heading);
}

.card-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0;
}

.card-body p:not(.card-label) {
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 8px;
  color: var(--color-text);
}

/* 引导入口 */
.guide-entry-section {
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 48px;
}

.guide-entry-section > h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.guide-entry-section > p {
  font-size: 15px;
  max-width: 720px;
  margin-bottom: 24px;
}

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

.entry-link {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-heading);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 56px;
  line-height: 1.4;
  display: flex;
  align-items: center;
}

.entry-link:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
  color: var(--color-accent);
}

/* 总结 */
.industry-conclusion {
  margin-bottom: 48px;
}

.industry-conclusion h2 {
  font-size: 22px;
  margin-bottom: 14px;
}

.industry-conclusion p {
  font-size: 15px;
  line-height: 1.7;
  max-width: 780px;
}

/* ============================================================
   PAGES — 技术资料
   ============================================================ */
.docs-intro {
  margin-bottom: 40px;
}

.docs-intro .section-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.docs-intro p {
  font-size: 15px;
  line-height: 1.7;
  max-width: 760px;
}

.docs-intro p a {
  font-weight: 600;
}

.docs-media {
  margin-top: 24px;
}

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

.docs-media figcaption {
  padding: 10px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

.resource-table-section {
  margin-bottom: 48px;
}

.resource-table-section > .section-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.resource-table-section > p {
  font-size: 15px;
  margin-bottom: 20px;
  max-width: 720px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.resource-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 640px;
}

.resource-table th,
.resource-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.resource-table th {
  background: var(--color-bg-soft);
  font-weight: 600;
  color: var(--color-heading);
  white-space: nowrap;
}

.resource-table tbody tr:last-child td {
  border-bottom: none;
}

.resource-table tbody tr:hover td {
  background: var(--color-bg-soft);
}

.table-note {
  margin-top: 14px;
  font-size: 14px;
  color: var(--color-muted);
}

.table-note a {
  font-weight: 600;
}

.field-dict-section > .section-title {
  font-size: 22px;
  margin-bottom: 20px;
}

.source-note-section {
  margin-top: 40px;
  margin-bottom: 48px;
}

.source-note-section .section-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.source-note-section p {
  font-size: 15px;
  line-height: 1.7;
  max-width: 760px;
}

.source-note-section p a {
  font-weight: 600;
}

.related-links {
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}

.related-links .section-title {
  font-size: 19px;
  margin-bottom: 16px;
}

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

.related-links ul li a {
  font-size: 15px;
  font-weight: 500;
  min-height: 40px;
  display: inline-block;
  line-height: 40px;
}

/* ============================================================
   PAGES — 服务支持
   ============================================================ */
.layout-shell.page-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 48px;
}

.page-layout .faq-main {
  min-width: 0;
}

.page-layout .faq-main .section-title {
  font-size: 22px;
  margin-bottom: 20px;
}

.page-layout .faq-aside {
  position: sticky;
  top: 24px;
}

.page-layout .faq-aside .section-title {
  font-size: 18px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.feedback-entry {
  margin-top: 24px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 24px;
}

.feedback-entry h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.feedback-entry p {
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 12px;
}

.support-media {
  margin-top: 48px;
}

.support-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.support-figure figcaption {
  padding: 12px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

/* ============================================================
   PAGES — 404
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  min-height: 60vh;
}

.error-panel {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-size: 80px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 28px;
  margin-bottom: 14px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 28px;
}

.error-back {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  min-height: 44px;
  line-height: 1.4;
  transition: background var(--transition-base);
}

.error-back:hover {
  background: #12806b;
  color: var(--color-white);
}

/* ============================================================
   RESPONSIVE — 响应式
   ============================================================ */
@media (max-width: 1024px) {
  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 23px;
  }

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

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

  .hero-figure {
    height: 240px;
  }

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

  .directory-cards {
    gap: 14px;
  }

  .step-content {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    height: auto;
    min-height: 64px;
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .brand-logo {
    margin-right: auto;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-slogan {
    font-size: 11px;
  }

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .site-nav {
    order: 4;
    width: 100%;
    flex-basis: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 8px;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

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

  .breadcrumb {
    padding: 16px 0 0;
    font-size: 13px;
  }

  .page-header {
    padding: 20px 0 24px;
  }

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

  .page-description {
    font-size: 15px;
  }

  /* 首页 */
  .hero-section {
    padding: 40px 0 0;
  }

  .hero-content,
  .hero-directory,
  .content-media-primary {
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

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

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    text-align: center;
  }

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

  .hero-figure {
    height: 200px;
  }

  .content-media-primary img {
    height: 200px;
  }

  .services-section {
    padding: 48px 16px;
  }

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

  .process-section {
    padding: 48px 0;
  }

  .process-section > div:first-child,
  .process-steps {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .process-step {
    padding: 20px;
  }

  .faq-section {
    padding: 48px 16px;
  }

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

  .faq-aside {
    position: static;
  }

  .cta-banner {
    padding: 40px 16px;
  }

  .cta-content h2 {
    font-size: 24px;
  }

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

  .cta-actions .btn-primary,
  .cta-actions .btn-secondary {
    text-align: center;
  }

  /* 产品中心 */
  .filter-bar {
    gap: 8px;
  }

  .filter-btn {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 40px;
  }

  .product-table {
    font-size: 14px;
    min-width: 560px;
  }

  .product-table th,
  .product-table td {
    padding: 12px 14px;
  }

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

  .field-dict {
    grid-template-columns: 1fr;
  }

  .support-entry {
    padding: 24px;
  }

  .support-entry p a {
    display: block;
    margin: 8px 0;
  }

  /* 选型指南 */
  .step-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 0;
  }

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

  .step-item > h3 {
    grid-column: 1;
  }

  .step-item > h3::before {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .step-content {
    grid-column: 1;
    grid-template-columns: 1fr;
  }

  .cta-entry {
    padding: 24px;
  }

  .cta-content p a {
    display: block;
    margin: 8px 0;
  }

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

  /* 应用行业 */
  .industry-grid {
    grid-template-columns: 1fr;
  }

  .guide-entry-section {
    padding: 24px;
  }

  .entry-links {
    grid-template-columns: 1fr;
  }

  .entry-link {
    min-height: 48px;
  }

  /* 技术资料 */
  .docs-media img {
    height: 200px;
  }

  .resource-table {
    font-size: 14px;
    min-width: 560px;
  }

  .resource-table th,
  .resource-table td {
    padding: 12px 14px;
  }

  .related-links {
    padding: 24px;
  }

  /* 服务支持 */
  .layout-shell.page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-layout .faq-aside {
    position: static;
  }

  .support-figure img {
    height: 200px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 28px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

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

  /* 404 */
  .error-main {
    padding: 60px 16px;
  }

  .error-code {
    font-size: 64px;
  }

  .error-panel h1 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 17px;
  }

  .header-inner {
    padding: 10px 14px;
  }

  .brand-name {
    font-size: 18px;
  }

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

  .hero-figure {
    height: 180px;
  }

  .content-media-primary img {
    height: 180px;
  }

  .service-card {
    padding: 22px 18px;
  }

  .process-step {
    flex-direction: column;
    gap: 12px;
  }

  .step-number {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .faq-item summary {
    padding: 14px 40px 14px 16px;
    font-size: 15px;
  }

  .faq-content {
    padding: 0 16px 16px;
    font-size: 14px;
  }

  .cta-content h2 {
    font-size: 22px;
  }

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

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

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

  .support-figure img {
    height: 180px;
  }

  .card-figure {
    height: 160px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .error-code {
    font-size: 52px;
  }
}

/* ============================================================
   PRINT — 打印样式
   ============================================================ */
@media print {
  .site-header,
  .breadcrumb,
  .cta-banner,
  .support-entry,
  .cta-entry,
  .guide-entry-section,
  .related-links,
  .feedback-entry,
  .filter-bar,
  .hero-actions,
  .hero-directory,
  .content-media-primary,
  .product-media,
  .guide-media,
  .docs-media,
  .support-media,
  .error-back {
    display: none !important;
  }

  .site-footer .footer-inner {
    display: block;
    padding: 24px 0;
  }

  .site-footer .footer-links {
    display: none;
  }

  .site-footer .footer-bottom {
    border-top: 1px solid #ccc;
  }

  .inner-main {
    padding: 0;
    max-width: 100%;
  }

  .page-header {
    padding: 16px 0;
  }

  body {
    font-size: 12pt;
  }

  a {
    color: #000;
  }
}