/* ==========================================================================
   黑料爆料 - 全站样式表
   版本: 1.0
   说明: 本样式表覆盖整站所有页面，按 base / layout / components / pages / responsive 分组
   ========================================================================== */

/* ==========================================================================
   Base - 基础变量、重置、字体、颜色
   ========================================================================== */

:root {
  --color-primary: #1e2a32;
  --color-bg: #f6f4ef;
  --color-accent: #c8883c;
  --color-body: #33383d;
  --color-border: #e5e2dc;
  --color-white: #ffffff;
  --color-muted: #6b7280;
  --color-light-bg: #edeae3;
  --container-width: 1080px;
  --container-padding: 24px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --font-title: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --shadow-card: 0 1px 3px rgba(30, 42, 50, 0.08), 0 1px 2px rgba(30, 42, 50, 0.04);
  --shadow-hover: 0 4px 12px rgba(30, 42, 50, 0.12), 0 2px 4px rgba(30, 42, 50, 0.06);
  --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-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

/* ==========================================================================
   Layout - 全站布局骨架（header / nav / main / footer / breadcrumb）
   ========================================================================== */

.site-header {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-white);
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-title);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.brand-name {
  display: inline-block;
}

.site-nav {
  flex: 0 0 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background-color var(--transition-base);
}

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

.nav-link.is-current {
  color: var(--color-accent);
  font-weight: 700;
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  gap: 5px;
  padding: 10px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) 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(-7px) rotate(-45deg);
}

.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  min-height: 60vh;
}

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.78);
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h3 {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

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

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.6;
  transition: color var(--transition-base);
}

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

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

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

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

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

.breadcrumb-sep {
  color: var(--color-border);
  font-size: 12px;
}

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

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

/* 内页统一标题区 */
.page-header {
  padding: 20px 0 8px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.page-head {
  padding: 8px 0 24px;
  max-width: 780px;
}

.page-head p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 0;
}

.page-lead {
  font-size: 16px;
  line-height: 1.7;
}

/* 内页通用布局 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  min-height: 60vh;
}

/* 相关阅读 */
.related-links {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-right: 4px;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-accent);
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.related-links-item:hover {
  border-color: var(--color-accent);
  background-color: rgba(200, 136, 60, 0.06);
}

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

/* 区块标题 */
.section-head {
  margin-bottom: 28px;
}

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

.section-head p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 640px;
}

/* 图片容器 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

figcaption {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  padding-top: 8px;
  line-height: 1.5;
}

/* 服务卡片（首页） */
.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

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

.service-icon {
  width: 44px;
  height: 44px;
  background-color: rgba(200, 136, 60, 0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 20px;
  color: var(--color-accent);
}

.service-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

/* 时间线通用 */
.timeline-list {
  position: relative;
}

.timeline-item {
  position: relative;
  padding-left: 44px;
  padding-bottom: 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 28px;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

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

.step-num,
.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.timeline-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.faq-summary,
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-base);
}

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

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

.faq-details[open] .faq-summary::after,
.faq-details[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-summary:hover,
.faq-question:hover {
  background-color: rgba(200, 136, 60, 0.04);
}

.faq-answer {
  padding: 0 20px 16px;
  border-top: 1px solid var(--color-border);
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  margin-top: 12px;
  margin-bottom: 0;
}

.faq-answer a {
  color: var(--color-accent);
  font-weight: 500;
}

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

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  padding: 8px 0;
  border-bottom: 2px solid var(--color-accent);
  transition: color var(--transition-base), border-color var(--transition-base);
}

.text-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

/* 首屏 */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding: 56px 0 48px;
}

.hero-copy {
  max-width: 560px;
}

.hero-copy h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.hero-slogan {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 12px;
  line-height: 1.5;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 24px;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-link {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: transparent;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.hero-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.hero-media {
  position: relative;
}

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

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* 最新情报合集 */
.latest-intel {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.intro h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.intro p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
}

.intel-media {
  margin-top: 20px;
}

.intel-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.intel-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.intel-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.intel-item {
  border-left: 3px solid var(--color-accent);
  padding: 16px 20px;
  background-color: var(--color-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.intel-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(200, 136, 60, 0.1);
  padding: 2px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.intel-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.intel-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 8px;
}

.intel-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
}

.intel-link:hover {
  color: var(--color-primary);
}

/* 服务矩阵 */
.service-matrix {
  margin-bottom: 48px;
}

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

/* 合作流程时间表 */
.process-timeline {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  margin-bottom: 48px;
}

.process-timeline .timeline {
  min-width: 0;
}

.process-timeline .timeline-list {
  counter-reset: step;
}

.side-entries {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  align-self: start;
}

.side-entries h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.side-link {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  border-bottom: 1px dashed var(--color-border);
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.side-link:last-child {
  border-bottom: none;
}

.side-link:hover {
  color: var(--color-accent);
  padding-left: 8px;
}

/* FAQ 摘要 */
.faq-preview {
  margin-bottom: 48px;
}

.faq-preview h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.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-md);
  padding: 20px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq-preview-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.faq-preview-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.faq-preview-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.faq-preview-link:hover {
  color: var(--color-primary);
}

/* 合规声明 */
.compliance-note {
  background-color: var(--color-light-bg);
  border-left: 4px solid var(--color-accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.compliance-note p {
  font-size: 14px;
  color: var(--color-body);
  margin-bottom: 0;
  line-height: 1.6;
}

.compliance-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

.compliance-link:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   Pages - 服务内容（service.html）
   ========================================================================== */

.service-overview {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 40px;
}

.service-overview-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-overview-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.service-overview-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.service-category {
  margin-bottom: 40px;
}

.service-category h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: 24px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.service-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.service-item-index {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-item-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-item-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 6px;
}

.service-item-content a {
  color: var(--color-accent);
  font-weight: 500;
}

.service-item-content a:hover {
  color: var(--color-primary);
}

.service-match {
  margin-bottom: 40px;
}

.service-match h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-match > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

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

.match-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.match-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.match-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.match-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 0;
}

.delivery-standard {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
}

.delivery-standard h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
}

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

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

.standard-item h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.standard-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

/* ==========================================================================
   Pages - 服务方法（method.html）
   ========================================================================== */

.layout-shell {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: start;
}

.sidebar-left {
  grid-template-columns: 300px 1fr;
}

.sidebar-left .quality-side {
  order: 1;
}

.sidebar-left .timeline-steps {
  order: 2;
}

.quality-side {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: sticky;
  top: 84px;
}

.quality-side h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.quality-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.quality-list li {
  padding: 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
}

.quality-list h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.quality-list p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-muted);
  margin-bottom: 0;
}

.method-figure {
  margin-top: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.method-figure figcaption {
  font-size: 12px;
  color: var(--color-muted);
  padding-top: 6px;
}

.timeline-steps h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.timeline-steps .timeline-list {
  counter-reset: step-counter;
}

.step-content {
  padding-top: 2px;
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 8px;
}

.step-output {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  background-color: rgba(200, 136, 60, 0.06);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.version-note {
  background-color: var(--color-light-bg);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  margin-top: 40px;
}

.version-note h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.version-note p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

/* ==========================================================================
   Pages - 适用场景（scenarios.html）
   ========================================================================== */

.comparison {
  margin-bottom: 40px;
}

.comparison-intro {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 32px;
}

.comparison-copy h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.comparison-copy p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.comparison-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.comparison-row {
  display: grid;
  grid-template-columns: 160px repeat(3, 1fr);
  min-width: 760px;
}

.comparison-row + .comparison-row {
  border-top: 1px solid var(--color-border);
}

.comparison-head {
  background-color: var(--color-primary);
}

.comparison-head .comparison-dimension,
.comparison-head .comparison-scenario {
  color: var(--color-white);
  font-weight: 700;
  font-size: 14px;
  padding: 16px;
}

.comparison-dimension {
  background-color: var(--color-bg);
  padding: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  border-right: 1px solid var(--color-border);
}

.comparison-scenario {
  padding: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
}

.comparison-scenario h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.comparison-scenario p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.recommendation {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 40px;
}

.recommendation h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.recommendation p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.extended-reading {
  margin-top: 40px;
}

.extended-reading h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

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

.reading-item a {
  display: block;
  padding: 16px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition-base), color var(--transition-base);
}

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

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

.faq-list {
  margin-bottom: 40px;
}

.boundary-note {
  background-color: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  margin-bottom: 40px;
}

.boundary-note h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.boundary-note p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 8px;
}

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

.faq-related {
  margin-bottom: 32px;
}

.faq-related h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.related-list a {
  display: block;
  padding: 12px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  text-align: center;
  transition: border-color var(--transition-base), color var(--transition-base);
}

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

.faq-figure {
  margin-top: 32px;
}

.faq-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.faq-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding-top: 8px;
}

/* ==========================================================================
   Pages - 合作流程（cooperation.html）
   ========================================================================== */

.process-timeline .section-head {
  margin-bottom: 24px;
}

.timeline-figure {
  margin-bottom: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.timeline-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.timeline-list {
  margin-bottom: 16px;
}

.timeline-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px 20px 56px;
  margin-bottom: 16px;
  position: relative;
}

.timeline-item .step-number {
  left: 16px;
  top: 20px;
}

.timeline-item .step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.timeline-item .step-content p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 8px;
}

.step-material {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

.step-material h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.step-material ul {
  list-style: none;
  padding: 0;
}

.step-material ul li {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  padding-left: 14px;
  position: relative;
}

.step-material ul li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.prepare-feedback {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.prepare-block,
.feedback-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.prepare-block h2,
.feedback-block h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.prepare-block p,
.feedback-block p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
}

.prepare-list,
.feedback-list {
  margin: 16px 0;
}

.prepare-list li,
.feedback-list li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  padding: 6px 0 6px 20px;
  position: relative;
}

.prepare-list li::before,
.feedback-list li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 18px;
}

.feedback-list a {
  color: var(--color-accent);
  font-weight: 500;
}

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

/* ==========================================================================
   Pages - 品牌定位（about.html）
   ========================================================================== */

.mission {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

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

.mission-text p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.mission-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mission-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.mission-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding-top: 8px;
}

.principles {
  margin-bottom: 48px;
}

.principles h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

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

.principle-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  border-top: 3px solid var(--color-accent);
}

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

.principle-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.boundary {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.boundary h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.boundary p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: 8px;
}

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

.related-links h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

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

/* ==========================================================================
   Pages - 信息更正（correction.html）
   ========================================================================== */

.correction-content {
  max-width: 780px;
}

.correction-section {
  margin-bottom: 48px;
}

.rule-section {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.section-text h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-text p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.correction-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.correction-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.correction-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding-top: 8px;
}

.process-section h2,
.contact-section h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.process-section p,
.contact-section p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.correction-steps {
  margin: 16px 0;
  padding: 0;
}

.correction-steps li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  padding: 8px 0 8px 24px;
  position: relative;
}

.correction-steps li::before {
  content: counter(step-counter);
  counter-increment: step-counter;
  position: absolute;
  left: 0;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.correction-steps {
  counter-reset: step-counter;
}

.contact-paths {
  margin: 16px 0;
  padding: 0;
}

.contact-paths li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  padding: 6px 0;
}

.contact-paths a {
  color: var(--color-accent);
  font-weight: 500;
}

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

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  padding: 48px 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

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

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-home-link {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: background-color var(--transition-base);
}

.error-home-link:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ==========================================================================
   Responsive - 响应式断点
   ========================================================================== */

/* 平板 */
@media (max-width: 1024px) {
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

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

  .hero-copy {
    max-width: 100%;
  }

  .latest-intel {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .side-entries {
    margin-top: 0;
  }

  .layout-shell,
  .sidebar-left {
    grid-template-columns: 1fr;
  }

  .quality-side {
    position: static;
    order: 1;
  }

  .sidebar-left .timeline-steps {
    order: 2;
  }

  .comparison-intro {
    grid-template-columns: 1fr;
  }

  .prepare-feedback {
    grid-template-columns: 1fr;
  }

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

  .rule-section {
    grid-template-columns: 1fr;
  }

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

/* 手机 */
@media (max-width: 640px) {
  :root {
    --container-padding: 16px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 16px;
  }

  .header-inner {
    min-height: 56px;
    padding: 0 var(--container-padding);
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0;
    max-height: 80vh;
    overflow-y: auto;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 12px var(--container-padding);
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-link.is-current {
    background-color: rgba(200, 136, 60, 0.12);
  }

  .hero {
    padding: 32px 0 32px;
  }

  .hero-copy h1 {
    font-size: 22px;
  }

  .hero-slogan {
    font-size: 16px;
  }

  .hero-links {
    flex-direction: column;
    gap: 8px;
  }

  .hero-link {
    text-align: center;
  }

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

  .latest-intel {
    padding: 24px;
  }

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

  .faq-preview-list {
    grid-template-columns: 1fr;
  }

  .compliance-note {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px var(--container-padding) 24px;
  }

  .footer-bottom {
    padding: 12px var(--container-padding);
  }

  .page-title {
    font-size: 22px;
  }

  .page-head p {
    font-size: 15px;
  }

  .service-overview {
    grid-template-columns: 1fr;
    padding: 24px;
  }

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

  .service-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }

  .service-item-index {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

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

  .standard-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

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

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

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

  .timeline-item .step-number {
    left: 12px;
    top: 16px;
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .comparison-table {
    min-width: 0;
  }

  .comparison-row {
    min-width: 0;
    grid-template-columns: 1fr;
  }

  .comparison-head {
    display: none;
  }

  .comparison-dimension {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(200, 136, 60, 0.06);
    font-weight: 700;
  }

  .comparison-scenario {
    padding: 12px 16px;
  }

  .comparison-scenario + .comparison-scenario {
    border-top: 1px dashed var(--color-border);
  }

  .faq-answer {
    padding: 0 16px 16px;
  }

  .faq-summary,
  .faq-question {
    padding: 14px 16px;
    font-size: 15px;
  }

  .boundary-note {
    padding: 20px;
  }

  .prepare-block,
  .feedback-block {
    padding: 20px;
  }

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

  .principle-item {
    padding: 20px;
  }

  .boundary {
    padding: 24px;
  }

  .error-panel {
    padding: 32px 24px;
  }

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

  .correction-figure img {
    height: 160px;
  }

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

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

  .comparison-image {
    height: 160px;
  }

  .method-figure img {
    height: 140px;
  }

  .intel-figure img {
    height: 160px;
  }

  .quality-side {
    padding: 20px;
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* 小屏手机 */
@media (max-width: 380px) {
  .header-inner {
    padding: 0 12px;
  }

  .brand-name {
    font-size: 17px;
  }

  .nav-link {
    padding: 12px 12px;
  }

  .hero {
    padding: 24px 0;
  }

  .latest-intel {
    padding: 16px;
  }

  .service-card {
    padding: 20px;
  }
}