/* ============================================================
   爆料黑料 · 整站样式表
   品牌手册风：暖白底色、清晰网格、克制留白
   ============================================================ */

/* ============================================================
   1. Base —— 基础重置与全局变量
   ============================================================ */

:root {
  --color-bg: #F7F7F4;
  --color-ink: #1F2937;
  --color-accent: #C0392B;
  --color-mist: #E8E6DF;
  --color-text: #2D2D2D;
  --color-white: #FFFFFF;
  --color-border: #D8D5CC;
  --color-text-light: #5A6572;

  --font-body: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;

  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  --shadow-card: 0 1px 3px rgba(31, 41, 55, 0.08);
  --shadow-lift: 0 6px 16px rgba(31, 41, 55, 0.10);

  --header-h: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-ink);
  font-weight: 600;
  line-height: 1.35;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

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

/* ============================================================
   2. Layout —— 全站骨架
   ============================================================ */

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

/* ============================================================
   3. Header —— 页头
   ============================================================ */

.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

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

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 13px;
  color: var(--color-text-light);
  white-space: nowrap;
}

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

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

.nav-list li {
  list-style: none;
}

.nav-item {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  line-height: 1.5;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-item:hover {
  color: var(--color-accent);
  background-color: rgba(192, 57, 43, 0.05);
}

.nav-item.is-current {
  color: var(--color-accent);
  font-weight: 600;
  background-color: rgba(192, 57, 43, 0.08);
}

/* ============================================================
   4. Footer —— 页脚
   ============================================================ */

.site-footer {
  background-color: var(--color-ink);
  color: #C7CCD4;
  margin-top: var(--space-xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 32px;
}

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

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #9CA3AF;
  max-width: 320px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: #C7CCD4;
  line-height: 1.6;
}

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

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

.footer-bottom p {
  font-size: 13px;
  color: #9CA3AF;
  max-width: var(--container-width);
  margin: 0 auto;
}

/* ============================================================
   5. Components —— 通用组件
   ============================================================ */

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text-light);
  padding: 16px 0 8px;
}

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

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

.breadcrumb-sep {
  color: #B8B4AA;
  font-size: 13px;
}

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

/* ---------- 页面标题区 ---------- */

.page-header {
  padding: 8px 0 16px;
}

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

.page-title-area {
  margin-bottom: 32px;
}

.page-title-area p,
.page-intro {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  max-width: 720px;
}

.page-heading p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  max-width: 720px;
  margin-bottom: 24px;
}

/* ---------- 区块标题 ---------- */

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

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

/* ---------- 通用卡片链接 ---------- */

.card-link,
.text-link,
.section-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 12px;
  transition: color 0.2s ease;
}

.card-link:hover,
.text-link:hover,
.section-link:hover {
  color: var(--color-ink);
}

/* ---------- 锚点目录（首页） ---------- */

.page-toc {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  margin-bottom: 48px;
}

.toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.toc-link {
  display: inline-block;
  padding: 6px 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.toc-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ---------- 图片容器 ---------- */

.hero-figure,
.service-media,
.stage-figure,
.method-figure,
.scenario-card-image,
.content-media {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.hero-figure img,
.service-media img,
.stage-figure img,
.method-figure img,
.scenario-card-image img,
.content-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 相关入口卡片 ---------- */

.related-links {
  margin-top: 48px;
}

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

.related-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.related-card:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.related-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.related-card h3 a {
  color: var(--color-ink);
}

.related-card h3 a:hover {
  color: var(--color-accent);
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

/* ---------- 通用图片说明 ---------- */

.content-media {
  position: relative;
}

.content-media img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  background-color: rgba(247, 247, 244, 0.95);
  padding: 8px 12px;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   6. 首页 —— index.html
   ============================================================ */

.home-main .hero-section {
  padding: 56px 0 40px;
}

.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 20px;
  max-width: 480px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-tags li {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-mist);
  border-radius: 999px;
  padding: 6px 14px;
}

.cta-button {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.cta-button:hover {
  background-color: #A93226;
  color: var(--color-white);
  transform: translateY(-1px);
}

.hero-figure {
  width: 100%;
  height: 320px;
}

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

/* ---------- 首页业务分类编辑网格 ---------- */

.services-grid-section {
  padding: 48px 0;
}

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

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

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

.card-body {
  padding: 20px;
}

.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.card-span-2 {
  grid-column: span 2;
}

.card-span-3 {
  grid-column: span 3;
}

.card-span-2 img {
  height: 220px;
}

.card-span-3 img {
  height: 240px;
}

/* ---------- 首页交付流程预览 ---------- */

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

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.step-item {
  position: relative;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.step-item:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-card);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 首页适用场景摘要 ---------- */

.scenarios-preview-section {
  padding: 48px 0;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.scenario-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.scenario-card:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.scenario-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 首页 FAQ 简版 ---------- */

.faq-preview-section {
  padding: 48px 0;
}

.faq-preview-list {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.faq-preview-list details.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.faq-preview-list summary {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  line-height: 1.5;
  list-style: none;
  position: relative;
  padding-right: 24px;
}

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

.faq-preview-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--color-accent);
}

.faq-preview-list details[open] summary::after {
  content: "−";
}

.faq-preview-list details[open] p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 首页工作准则摘要 ---------- */

.principles-summary-section {
  padding: 48px 0;
}

.principles-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

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

.principle-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.principle-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.principle-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============================================================
   7. 内页通用骨架
   ============================================================ */

.inner-main {
  padding-bottom: 48px;
}

.page-shell {
  width: 100%;
}

/* ---------- 服务分类筛选锚点目录 ---------- */

.category-toc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  margin-bottom: 40px;
}

.toc-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-right: 8px;
}

.category-toc .toc-link {
  font-size: 14px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border-bottom: none;
  background-color: transparent;
}

.category-toc .toc-link:hover {
  background-color: rgba(192, 57, 43, 0.06);
  color: var(--color-accent);
}

/* ---------- 服务问题分组 ---------- */

.problem-group {
  margin-bottom: 56px;
}

.group-heading {
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-mist);
}

.group-heading h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 6px;
}

.group-heading p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  max-width: 720px;
}

.service-item {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-item:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-card);
}

.service-media {
  width: 300px;
  height: 200px;
}

.service-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-content > p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.meta-block {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.meta-block h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.meta-block p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ---------- 服务选择说明 ---------- */

.service-selection-note {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 40px;
}

.service-selection-note h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-selection-note p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 12px;
}

.service-selection-note ul {
  margin: 12px 0;
  padding-left: 20px;
  list-style: disc;
}

.service-selection-note ul li {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.service-selection-note ul strong {
  color: var(--color-ink);
}

/* ---------- 相关入口（服务页） ---------- */

.related-links-item {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 8px;
}

/* ============================================================
   8. 流程页 —— blhl/process.html
   ============================================================ */

.stage-overview {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 48px;
}

.stage-overview .section-heading h2 {
  font-size: 20px;
}

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

.stage-tab-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.stage-tab-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(192, 57, 43, 0.04);
}

.stage-tab-link::before {
  content: attr(data-stage);
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
}

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

.stage-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-mist);
}

.stage-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.stage-heading h2 {
  font-size: 22px;
  font-weight: 700;
}

.stage-content {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.stage-text {
  display: grid;
  gap: 16px;
}

.stage-block {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.stage-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.stage-block p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.stage-figure {
  width: 320px;
  height: 220px;
}

/* ---------- 交付标准 ---------- */

.delivery-standard {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 48px;
}

.standard-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.standard-list li {
  position: relative;
  padding: 12px 0 12px 28px;
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid var(--color-mist);
}

.standard-list li:last-child {
  border-bottom: none;
}

.standard-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.standard-note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.standard-note a {
  color: var(--color-accent);
  font-weight: 600;
  margin-right: 16px;
}

.standard-note a:hover {
  color: var(--color-ink);
}

/* ============================================================
   9. 场景页 —— blhl/scenarios.html
   ============================================================ */

.scenario-toc {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  margin-bottom: 40px;
}

.scenario-toc ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.scenario-toc a {
  display: inline-block;
  padding: 6px 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.scenario-toc a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.scenarios-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

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

.scenario-card:hover {
  border-color: #B8B4AA;
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.scenario-card-image {
  width: 100%;
  height: 180px;
  border-radius: 0;
}

.scenario-card-content {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.scenario-card-content h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.scenario-question {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 10px;
  font-style: italic;
}

.scenario-trigger {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.scenario-trigger strong {
  color: var(--color-text);
  font-weight: 600;
}

.scenario-action {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.scenario-action strong {
  color: var(--color-accent);
  font-weight: 600;
}

.scenarios-list .text-link {
  margin-top: auto;
}

/* ---------- 优先级说明 ---------- */

.priority-note {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 48px;
}

.priority-note h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.priority-note > p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.priority-note ol {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.priority-note ol li {
  position: relative;
  padding: 10px 0 10px 28px;
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid var(--color-mist);
}

.priority-note ol li:last-child {
  border-bottom: none;
}

.priority-note ol li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 19px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.priority-note ol strong {
  color: var(--color-ink);
}

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

.priority-note a {
  color: var(--color-accent);
  font-weight: 600;
  margin-right: 16px;
}

.priority-note a:hover {
  color: var(--color-ink);
}

/* ============================================================
   10. FAQ 页 —— blhl/faq.html
   ============================================================ */

.faq-list-wrap {
  margin-bottom: 48px;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.faq-list details.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.faq-list summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  line-height: 1.5;
  list-style: none;
  position: relative;
  padding-right: 28px;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--color-accent);
}

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

.faq-answer {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-mist);
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.content-media-inline {
  margin-top: 24px;
}

/* ---------- 合作前须知 ---------- */

.before-start-wrap {
  margin-bottom: 48px;
}

.before-start-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

.before-start-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.before-start-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 如何提出咨询 ---------- */

.how-to-ask-wrap {
  margin-bottom: 48px;
}

.how-to-ask-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

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

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

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

.ask-entry p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.ask-entry a {
  color: var(--color-accent);
  font-weight: 600;
}

.ask-entry a:hover {
  color: var(--color-ink);
}

/* ============================================================
   11. 机构说明页 —— blhl/about.html
   ============================================================ */

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

.method-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 32px;
  align-items: start;
}

.method-list {
  display: grid;
  gap: 16px;
}

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

.method-list h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.method-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.method-figure {
  width: 360px;
  height: 260px;
}

.principle-note {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}

.principle-note h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 12px;
}

.principle-list {
  display: grid;
  gap: 8px;
}

.principle-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.principle-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* ---------- 内容审核标准 ---------- */

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

.review-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

.review-list h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.review-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 意见反馈 ---------- */

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

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

.feedback-steps li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.feedback-steps h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feedback-steps p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

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

.feedback-links p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.feedback-links a {
  color: var(--color-accent);
  font-weight: 600;
  margin-right: 16px;
}

.feedback-links a:hover {
  color: var(--color-ink);
}

/* ============================================================
   12. 404 页
   ============================================================ */

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

.error-section {
  text-align: center;
  max-width: 560px;
  padding: 48px 24px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.error-action {
  display: inline-block;
  margin-top: 24px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.error-action:hover {
  background-color: #A93226;
  color: var(--color-white);
}

/* ============================================================
   13. 响应式 —— 960px 断点
   ============================================================ */

@media (max-width: 960px) {
  .header-inner,
  .site-main,
  .footer-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .hero-figure {
    height: 260px;
  }

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

  .card-span-2,
  .card-span-3 {
    grid-column: span 2;
  }

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

  .service-item {
    grid-template-columns: 220px 1fr;
    gap: 16px;
  }

  .service-media {
    width: 220px;
    height: 160px;
  }

  .stage-content {
    grid-template-columns: 1fr 240px;
    gap: 24px;
  }

  .stage-figure {
    width: 240px;
    height: 180px;
  }

  .method-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }

  .method-figure {
    width: 280px;
    height: 220px;
  }

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

/* ============================================================
   14. 响应式 —— 640px 断点（手机端）
   ============================================================ */

@media (max-width: 640px) {
  .header-inner,
  .site-main,
  .footer-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header {
    position: relative;
  }

  .header-inner {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 12px;
  }

  .brand-link {
    width: 100%;
    justify-content: space-between;
    align-items: center;
  }

  .brand-slogan {
    font-size: 12px;
  }

  .main-nav.site-nav {
    width: 100%;
  }

  .nav-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 2px 8px;
    width: 100%;
  }

  .nav-item {
    font-size: 14px;
    padding: 6px 10px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 20px;
  }

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

  .hero-title {
    font-size: 28px;
  }

  .hero-section {
    padding: 32px 0 24px;
  }

  .hero-figure {
    height: 200px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card-span-2,
  .card-span-3 {
    grid-column: span 1;
  }

  .card-span-2 img,
  .card-span-3 img {
    height: 180px;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .principles-content {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stage-tabs {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .stage-detail {
    padding: 20px;
  }

  .stage-content {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stage-figure {
    width: 100%;
    height: 200px;
  }

  .stage-block {
    padding: 14px 16px;
  }

  .scenarios-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .scenario-card-image {
    height: 160px;
  }

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

  .how-to-ask-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .feedback-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

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

  .service-media {
    width: 100%;
    height: 180px;
  }

  .service-meta {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .method-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .method-figure {
    width: 100%;
    height: 200px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* FAQ 页 related-grid 在手机端单列 */
  .faq-list-wrap .related-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }

  .category-toc {
    padding: 12px;
  }

  .toc-label {
    width: 100%;
    margin-bottom: 4px;
  }

  .page-toc {
    padding: 12px 16px;
  }

  .toc-list {
    gap: 4px 16px;
  }

  .toc-link {
    font-size: 14px;
    padding: 4px 2px;
  }

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

  .scenario-toc ul {
    gap: 4px 16px;
  }

  .scenario-toc a {
    font-size: 14px;
    padding: 4px 2px;
  }

  .step-num,
  .step-number {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .stage-number {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .related-card {
    padding: 20px;
  }

  .service-selection-note {
    padding: 20px;
  }

  .priority-note {
    padding: 20px;
  }

  .delivery-standard {
    padding: 20px;
  }

  .ask-entry {
    padding: 16px;
  }

  .feedback-links {
    padding: 16px;
  }

  .principle-note {
    padding: 20px;
  }

  .error-code {
    font-size: 48px;
  }

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

/* ============================================================
   15. 辅助工具与细节
   ============================================================ */

/* FAQ details 默认展开状态下内容可见 */
details.faq-item[open] .faq-answer {
  display: block;
}

details.faq-item .faq-answer {
  display: none;
}

details.faq-item[open] .faq-answer {
  display: block;
}

/* 确保图片在当前容器内不溢出 */
img {
  max-width: 100%;
}

/* 平滑滚动，但不影响初始渲染 */
html {
  scroll-padding-top: 20px;
}

/* 长文本断词 */
p,
li,
h1,
h2,
h3 {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

/* 所有链接默认无下划线 */
a {
  text-decoration: none;
}

/* 按钮与链接的可点区域 */
a,
summary {
  -webkit-tap-highlight-color: rgba(192, 57, 43, 0.12);
}

/* 焦点可见性 */
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 打印样式保持简洁 */
@media print {
  .site-header,
  .site-footer,
  .page-toc,
  .category-toc,
  .scenario-toc,
  .related-links {
    display: none;
  }

  body {
    background-color: var(--color-white);
  }

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

/* 程序验收反馈：修复网格孤项 */
@media (min-width: 769px) {
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}