/* ==========================================================================
   sclstmc.com — 全站样式表
   设计方向：音乐杂志封面风格，强标题与有序分栏结合
   配色：米白底 #F7F3EC / 深墨 #2C2A26 / 琥珀金 #E8A33D / 墨蓝 #1A2530 / 辅助灰 #6B6A66
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base — 基础重置与全局变量
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #F7F3EC;
  --color-text: #2C2A26;
  --color-accent: #E8A33D;
  --color-dark: #1A2530;
  --color-gray: #6B6A66;
  --color-border: #E0DAD0;
  --color-card-bg: #FFFFFF;
  --font-serif: 'Songti SC', 'Noto Serif SC', Georgia, 'Times New Roman', serif;
  --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: 8px;
  --radius-lg: 8px;
  --shadow-sm: 0 2px 8px rgba(26, 37, 48, 0.06);
  --shadow-md: 0 6px 24px rgba(26, 37, 48, 0.1);
  --transition-base: 0.25s 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: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
}

h1 {
  font-size: 40px;
}

h2 {
  font-size: 28px;
}

h3 {
  font-size: 20px;
}

p {
  margin-bottom: 1em;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Layout — 全站布局骨架
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 页头 */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

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

.brand-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.02em;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list a {
  display: inline-block;
  padding: 8px 0;
  font-size: 15px;
  color: var(--color-gray);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-base), border-color var(--transition-base);
}

.nav-list a:hover {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.nav-list a.is-current {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
  font-weight: 600;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
}

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

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

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 主内容 */
.site-main {
  min-height: 480px;
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* 面包屑 */
.breadcrumb {
  padding: 28px 0 8px;
  font-size: 14px;
  color: var(--color-gray);
}

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

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

.breadcrumb-sep {
  margin: 0 8px;
  color: var(--color-border);
}

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

/* 页脚 */
.site-footer {
  background-color: var(--color-dark);
  color: #C8CDD2;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}

.footer-col {
  min-width: 0;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 15px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.footer-about p:last-child {
  font-size: 14px;
  color: #9AA3AC;
  margin-bottom: 0;
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
}

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

.footer-nav a {
  font-size: 14px;
  color: #C8CDD2;
}

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

.footer-current .current-page {
  font-size: 14px;
  color: var(--color-accent);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 24px;
  font-size: 13px;
  color: #8A939C;
  text-align: center;
}

/* 页面标题区（内页统一） */
.page-header {
  padding: 32px 0 8px;
}

.page-title {
  font-size: 40px;
  color: var(--color-text);
  margin-bottom: 0;
}

.page-intro {
  font-size: 17px;
  color: var(--color-gray);
  max-width: 720px;
  margin: 12px 0 0;
}

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

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

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

/* --------------------------------------------------------------------------
   Components — 通用组件
   -------------------------------------------------------------------------- */

/* CTA 按钮 */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.cta-button:hover {
  background-color: #D9922E;
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Section 标题区 */
.section-heading {
  margin-bottom: 40px;
}

.section-heading h2 {
  font-size: 28px;
  margin-bottom: 8px;
}

.section-heading p {
  font-size: 16px;
  color: var(--color-gray);
  margin-bottom: 0;
}

/* FAQ 手风琴 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

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

.faq-item[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.faq-item p {
  padding: 16px 24px 24px;
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 0;
}

/* 方法编号 */
.method-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  margin-bottom: 16px;
}

/* 相关链接（内页底部） */
.related-links-section,
.related-links-area {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.related-links-section h2,
.related-links-area h2 {
  font-size: 22px;
  margin-bottom: 24px;
}

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

.related-link-card,
.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.related-link-card:hover,
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.related-link-title,
.related-card-title,
.related-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.related-link-desc,
.related-card-text,
.related-desc {
  font-size: 14px;
  color: var(--color-gray);
}

/* 底部导航相关链接条 */
nav.related-links {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.related-links-item:hover {
  border-bottom-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Pages — 首页
   -------------------------------------------------------------------------- */

/* 封面区 */
.hero-cover {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 72px 24px 56px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

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

.hero-kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
}

.hero-content h1 {
  font-size: 44px;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 17px;
  color: var(--color-gray);
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-visual {
  min-width: 0;
}

.hero-figure {
  margin-bottom: 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-dark);
}

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

.hero-directory {
  background-color: var(--color-dark);
  border-radius: var(--radius-md);
  padding: 24px;
}

.directory-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.directory-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.directory-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 14px;
  color: #C8CDD2;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.directory-list a::before {
  content: '→';
  color: var(--color-accent);
  font-size: 13px;
}

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

/* 核心判断区 */
.core-method {
  background-color: var(--color-dark);
  padding: 72px 0;
}

.core-method .method-intro {
  max-width: var(--container-width);
  margin: 0 auto 48px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: end;
}

.method-intro h2 {
  color: #FFFFFF;
  font-size: 28px;
  margin-bottom: 0;
}

.method-intro p {
  color: #9AA3AC;
  font-size: 15px;
  margin-bottom: 0;
}

.method-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.method-item {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.method-item:hover {
  background-color: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.method-item .method-number {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.method-item h3 {
  color: #FFFFFF;
  margin-bottom: 12px;
}

.method-item p {
  color: #9AA3AC;
  font-size: 14px;
  margin-bottom: 0;
}

/* 服务矩阵预览 */
.services-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 24px;
}

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

.service-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 22px;
  color: var(--color-accent);
  background-color: rgba(232, 163, 61, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.service-card h3 {
  font-size: 18px;
  margin-bottom: 0;
}

.service-card p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 0;
  flex-grow: 1;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 8px;
}

.card-link::after {
  content: ' →';
}

/* 近期动态摘要 */
.progress-preview {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 80px 0;
}

.progress-preview .section-heading {
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 24px;
}

.progress-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.progress-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.progress-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.progress-card figure {
  overflow: hidden;
  background-color: var(--color-dark);
}

.progress-card figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.progress-card:hover figure img {
  transform: scale(1.03);
}

.card-body {
  padding: 24px;
}

.card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

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

.card-body p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 16px;
}

.card-body a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.card-body a::after {
  content: ' →';
}

/* 合作流程概览 */
.process-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 24px;
}

.process-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.step-item {
  padding: 24px;
  border-left: 3px solid var(--color-accent);
  background-color: var(--color-card-bg);
  border-radius: var(--radius-sm);
}

.step-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 0;
}

.process-cta {
  text-align: center;
}

/* FAQ 区 */
.faq-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.faq-section .faq-list {
  max-width: 800px;
}

/* --------------------------------------------------------------------------
   Pages — 内页：项目概览 project-overview
   -------------------------------------------------------------------------- */

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

.background-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
}

.background-image-wrap {
  min-width: 0;
}

.background-image-wrap figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-dark);
}

.background-image-wrap img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

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

.background-content h2 {
  font-size: 26px;
  margin-bottom: 16px;
}

.background-content p {
  font-size: 15px;
  color: var(--color-gray);
}

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

.method-section > h2 {
  font-size: 26px;
  margin-bottom: 8px;
}

.method-section > .method-intro {
  margin-bottom: 32px;
}

.method-intro p {
  color: var(--color-gray);
  font-size: 15px;
  margin-bottom: 0;
}

.method-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.method-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.method-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.method-card p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 0;
}

.promise-section {
  background-color: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 24px;
}

.promise-section h2 {
  color: #FFFFFF;
  font-size: 26px;
  margin-bottom: 8px;
}

.promise-intro {
  color: #9AA3AC;
  font-size: 15px;
  margin-bottom: 32px;
}

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

.promise-list li {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 24px;
}

.promise-list h3 {
  color: var(--color-accent);
  font-size: 16px;
  margin-bottom: 8px;
}

.promise-list p {
  color: #9AA3AC;
  font-size: 14px;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Pages — 内页：空间规划 spatial-planning
   -------------------------------------------------------------------------- */

.service-blocks-area {
  margin-bottom: 56px;
}

.section-title {
  font-size: 26px;
  margin-bottom: 32px;
}

.service-block-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.service-block {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.service-block:hover {
  box-shadow: var(--shadow-md);
}

.service-block:nth-child(even) .service-figure {
  order: 2;
}

.service-block:nth-child(even) .service-block-content {
  order: 1;
}

.service-figure {
  min-width: 0;
  overflow: hidden;
  background-color: var(--color-dark);
  height: 100%;
  min-height: 240px;
}

.service-figure img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
}

.service-block-content {
  min-width: 0;
  padding: 32px 32px 32px 0;
}

.service-block:nth-child(even) .service-block-content {
  padding: 32px 0 32px 32px;
}

.service-index {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.service-block-content h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.service-audience {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  background-color: rgba(232, 163, 61, 0.15);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.service-block-content p {
  font-size: 14px;
  color: var(--color-gray);
}

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

/* 适用场景 */
.scenario-area {
  margin-bottom: 56px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 32px;
}

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

.scenario-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.scenario-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scenario-card h3 {
  font-size: 18px;
  margin-bottom: 0;
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-gray);
  flex-grow: 1;
  margin-bottom: 0;
}

.scenario-card a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.scenario-card a::after {
  content: ' →';
}

/* --------------------------------------------------------------------------
   Pages — 内页：配套说明 support
   -------------------------------------------------------------------------- */

.support-intro-block {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 56px;
}

.support-intro-figure {
  min-width: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-dark);
}

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

.support-intro-text {
  min-width: 0;
}

.support-intro-text p {
  font-size: 15px;
  color: var(--color-gray);
}

.support-list-section {
  margin-bottom: 56px;
}

.support-list-section h2 {
  font-size: 26px;
  margin-bottom: 24px;
}

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

.support-item {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.support-item dt {
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 28px;
}

.support-item dd {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* 交付边界 */
.boundary-section {
  margin-bottom: 56px;
}

.boundary-section h2 {
  font-size: 26px;
  margin-bottom: 24px;
}

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

.boundary-col {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.boundary-col h3 {
  font-size: 18px;
  margin-bottom: 16px;
  color: var(--color-dark);
}

.boundary-col:nth-child(2) h3 {
  color: var(--color-gray);
}

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

.boundary-list li {
  font-size: 14px;
  color: var(--color-gray);
  padding-left: 20px;
  position: relative;
}

.boundary-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.boundary-col:nth-child(2) .boundary-list li::before {
  content: '×';
}

/* --------------------------------------------------------------------------
   Pages — 内页：进展记录 progress
   -------------------------------------------------------------------------- */

.project-cards {
  margin-bottom: 56px;
}

.project-cards h2,
.gallery-section h2,
.creative-note h2 {
  font-size: 26px;
  margin-bottom: 24px;
}

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

.project-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.project-figure {
  overflow: hidden;
  background-color: var(--color-dark);
}

.project-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.project-type {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 20px 20px 0;
}

.project-card h3 {
  font-size: 18px;
  margin: 8px 20px;
}

.project-card > p:last-child {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0 20px 20px;
}

/* 图集 */
.gallery-section {
  margin-bottom: 56px;
}

.gallery-section > p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 24px;
}

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

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-dark);
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-item figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: #C8CDD2;
  background-color: rgba(26, 37, 48, 0.9);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}

/* 创作说明 */
.creative-note {
  background-color: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 24px;
}

.creative-note h2 {
  color: #FFFFFF;
}

.creative-note p {
  font-size: 15px;
  color: #C8CDD2;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Pages — 内页：咨询流程 consulting
   -------------------------------------------------------------------------- */

.activity-info {
  margin-bottom: 56px;
}

.activity-info .page-title-block p {
  font-size: 16px;
  color: var(--color-gray);
  max-width: 720px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.info-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.info-item h2 {
  font-size: 15px;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-gray);
  margin-bottom: 8px;
}

.info-item p {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: 0;
}

/* 流程步骤 */
.process-steps .section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 26px;
  margin-bottom: 8px;
}

.section-header p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 0;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.steps-list .step-item {
  border-left: none;
  border-top: 3px solid var(--color-accent);
  padding: 24px;
}

.step-content h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 0;
}

.consulting-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-dark);
  margin-bottom: 56px;
}

.consulting-figure img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.consulting-figure figcaption {
  padding: 16px 24px;
  font-size: 14px;
  color: #C8CDD2;
  background-color: rgba(26, 37, 48, 0.9);
}

/* FAQ 区 */
.faq-list .section-header {
  margin-bottom: 24px;
}

/* 反馈与分享 */
.feedback-share {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.share-box {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
}

.share-box h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.share-box p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 24px;
}

.copy-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  background-color: var(--color-dark);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.copy-link-button:hover {
  background-color: #2A3A4A;
}

.copy-status {
  display: block;
  font-size: 13px;
  color: var(--color-accent);
  margin-top: 12px;
  min-height: 20px;
}

/* 相关链接 aside */
aside.related-links {
  margin-top: 56px;
}

aside.related-links h2 {
  font-size: 22px;
  margin-bottom: 24px;
}

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

.related-list a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.related-list a:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.related-list .related-title {
  font-size: 17px;
}

.related-list .related-desc {
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   Pages — 404
   -------------------------------------------------------------------------- */

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

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

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

.error-panel h1 {
  font-size: 28px;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-gray);
  margin-bottom: 32px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-back:hover {
  background-color: #D9922E;
  color: var(--color-dark);
  transform: translateY(-2px);
}

.error-suggest {
  font-size: 14px;
  color: var(--color-gray);
  margin-top: 24px;
  margin-bottom: 0;
}

.error-suggest a {
  color: var(--color-accent);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Responsive — 响应式适配
   -------------------------------------------------------------------------- */

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

  .hero-cover {
    gap: 32px;
  }

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

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

/* 手机 */
@media (max-width: 768px) {
  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

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

  /* 汉堡菜单 */
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
  }

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

  .nav-list li {
    border-bottom: 1px solid var(--color-border);
  }

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

  .nav-list a {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: none;
  }

  .nav-list a.is-current {
    color: var(--color-accent);
    border-bottom: none;
  }

  /* 内页容器 */
  .inner-main {
    padding: 0 16px 60px;
  }

  .breadcrumb {
    padding: 20px 0 4px;
    font-size: 13px;
  }

  .page-header {
    padding: 24px 0 4px;
  }

  .page-title {
    font-size: 30px;
  }

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

  /* 首页 hero */
  .hero-cover {
    grid-template-columns: 1fr;
    padding: 40px 16px 32px;
    gap: 32px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

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

  .hero-figure img {
    height: 220px;
  }

  .hero-directory {
    padding: 20px;
  }

  /* 核心判断 */
  .core-method {
    padding: 48px 0;
  }

  .core-method .method-intro {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 16px;
    margin-bottom: 32px;
  }

  .method-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 16px;
  }

  .method-item {
    padding: 20px;
  }

  /* 服务矩阵 */
  .services-preview {
    padding: 48px 16px;
  }

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

  .service-card {
    padding: 20px;
  }

  /* 进展摘要 */
  .progress-preview {
    padding: 48px 0;
  }

  .progress-preview .section-heading {
    padding: 0 16px;
  }

  .progress-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 16px;
  }

  .progress-card figure img {
    height: 180px;
  }

  .card-body {
    padding: 20px;
  }

  /* 流程 */
  .process-steps {
    padding: 48px 16px;
  }

  .process-track {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 32px;
  }

  .step-item {
    padding: 20px;
  }

  .step-number {
    font-size: 26px;
  }

  /* FAQ */
  .faq-section {
    padding: 0 16px 48px;
  }

  .faq-item summary {
    padding: 16px 20px;
    font-size: 15px;
  }

  .faq-item p {
    padding: 12px 20px 20px;
    font-size: 14px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 24px;
  }

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

  /* 项目概览 */
  .background-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .background-image-wrap img {
    height: 220px;
  }

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

  .promise-section {
    padding: 32px 20px;
  }

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

  .promise-list li {
    padding: 20px;
  }

  /* 空间规划 */
  .service-block {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .service-block:nth-child(even) .service-figure {
    order: 0;
  }

  .service-block:nth-child(even) .service-block-content {
    order: 0;
  }

  .service-figure,
  .service-figure img {
    min-height: 200px;
  }

  .service-block-content,
  .service-block:nth-child(even) .service-block-content {
    padding: 24px 20px;
  }

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

  .scenario-card {
    padding: 20px;
  }

  /* 配套说明 */
  .support-intro-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

  .support-item {
    padding: 16px 20px;
  }

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

  .boundary-col {
    padding: 20px;
  }

  /* 进展记录 */
  .project-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .gallery-item img {
    height: 140px;
  }

  .gallery-item figcaption {
    font-size: 12px;
    padding: 8px 12px;
  }

  .creative-note {
    padding: 24px 20px;
  }

  /* 咨询流程 */
  .info-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 24px;
  }

  .info-item {
    padding: 16px;
  }

  .info-item h2 {
    font-size: 13px;
  }

  .info-item p {
    font-size: 14px;
  }

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

  .consulting-figure img {
    height: 220px;
  }

  .consulting-figure figcaption {
    padding: 12px 16px;
    font-size: 13px;
  }

  .share-box {
    padding: 24px 16px;
  }

  .copy-link-button {
    width: 100%;
  }

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

  .related-list a {
    padding: 20px;
  }

  /* 相关链接 */
  .related-links-grid,
  .related-link-grid,
  .related-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .related-link-card,
  .related-card {
    padding: 20px;
  }

  /* 404 */
  .error-code {
    font-size: 56px;
  }

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

  .error-desc {
    font-size: 15px;
  }

  .btn-back {
    width: 100%;
  }
}

/* 小屏手机优化 */
@media (max-width: 480px) {
  .info-grid {
    grid-template-columns: 1fr;
  }

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

  .gallery-item img {
    height: 120px;
  }

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

  .hero-kicker {
    font-size: 12px;
  }

  .directory-list a {
    font-size: 13px;
  }

  .section-heading h2 {
    font-size: 24px;
  }
}