/* ==========================================================================
   吃瓜网在线观看 - 整站样式表
   版本：1.0
   说明：本文档覆盖全站所有页面（首页、内页、404）的完整样式。
   ========================================================================== */

/* ==========================================================================
   Base - 基础重置与全局变量
   ========================================================================== */
:root {
  --color-primary: #12263A;
  --color-accent: #F08A24;
  --color-bg-light: #F7F9FC;
  --color-text-dark: #333333;
  --color-text-body: #4A5568;
  --color-text-muted: #718096;
  --color-border: #E2E8F0;
  --color-white: #FFFFFF;
  --color-black: #1A202C;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Courier New", monospace;

  --container-width: 1200px;
  --container-padding: 24px;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --transition-base: 0.2s ease;
  --shadow-card: 0 1px 3px rgba(18, 38, 58, 0.08);
  --shadow-card-hover: 0 6px 20px rgba(18, 38, 58, 0.10);

  --header-height: 72px;
  --footer-bg: #12263A;
}

*,
*::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: 1.75;
  color: var(--color-text-body);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul,
ol {
  list-style: none;
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

h1 {
  font-size: 32px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 20px;
}

h4 {
  font-size: 18px;
}

p {
  margin-bottom: 0;
}

figure {
  margin: 0;
}

/* ==========================================================================
   Layout - 全站布局骨架
   ========================================================================== */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand {
  flex-shrink: 0;
}

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

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

.main-nav.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav.site-nav li a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.main-nav.site-nav li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

.main-nav.site-nav li a.is-current {
  color: var(--color-accent);
  font-weight: 600;
  background-color: rgba(240, 138, 36, 0.08);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

.nav-toggle span {
  display: block;
  position: relative;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  transition: background-color var(--transition-base);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform var(--transition-base);
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] span {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle[aria-expanded="true"] span::after {
  transform: rotate(-45deg);
  top: 0;
}

.site-main {
  min-height: 60vh;
}

.site-main.inner-main {
  padding-bottom: 60px;
}

.site-footer {
  background-color: var(--footer-bg);
  color: rgba(255, 255, 255, 0.8);
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px var(--container-padding) 32px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p:not(.footer-logo) {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  max-width: 420px;
}

.footer-links h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-links ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 24px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 0;
  display: inline-block;
}

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

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px var(--container-padding);
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-copyright p {
  max-width: var(--container-width);
  margin: 0 auto;
}

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

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

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

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

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

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

/* 页面标题区 */
.page-title-wrap {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 0;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.page-title-block,
.page-title-area {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 24px;
  font-size: 16px;
  color: var(--color-text-body);
}

.page-title-block p,
.page-title-area p {
  max-width: 720px;
}

/* 按钮 */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-primary:hover {
  background-color: #D97A1A;
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  background-color: transparent;
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* 通用区块 */
.section-block {
  padding: 56px 0;
}

.section-block h2,
.section-heading {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 32px;
  text-align: center;
}

/* 相关链接 */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.related-links-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.related-links-item {
  display: inline-block;
  padding: 10px 20px;
  margin-right: 12px;
  margin-bottom: 12px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.related-links-item:hover {
  border-color: var(--color-accent);
  background-color: rgba(240, 138, 36, 0.06);
  color: var(--color-accent);
}

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

.related-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  color: var(--color-primary);
}

.related-card h3,
.related-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.related-card p,
.related-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

/* 图片公共约束 */
.hero-figure img,
.service-figure img,
.scene-item img,
.work-figure img,
.process-figure img,
.scene-figure img,
.intro-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

/* Hero 区域 */
.hero-section {
  background-color: var(--color-bg-light);
  padding: 56px 0 0;
}

.hero-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.hero-main h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 17px;
  color: var(--color-text-body);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-cta {
  margin-bottom: 32px;
}

.hero-side {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.hero-service-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero-service-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.hero-service-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.hero-service-list li:first-child {
  padding-top: 0;
}

.hero-service-list h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

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

.hero-figure {
  grid-column: 1 / -1;
  margin-top: 40px;
  height: 380px;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

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

/* 服务概览 */
.services-overview {
  background-color: var(--color-white);
}

.service-card-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

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

.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

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

.service-card a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

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

/* 拍摄场景 */
.shoot-scenes {
  background-color: var(--color-bg-light);
}

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

.scene-item {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.scene-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.scene-item figcaption {
  padding: 20px;
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.6;
}

.scene-more {
  max-width: var(--container-width);
  margin: 32px auto 0;
  padding: 0 var(--container-padding);
  text-align: center;
}

.scene-more a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 制作流程速览 */
.process-preview {
  background-color: var(--color-white);
}

.process-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: step-counter;
}

.process-steps li {
  position: relative;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
}

.process-steps li::before {
  counter-increment: step-counter;
  content: counter(step-counter, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 12px;
}

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

.process-steps p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.process-link {
  max-width: var(--container-width);
  margin: 32px auto 0;
  padding: 0 var(--container-padding);
  text-align: center;
}

.process-link a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 拍摄百科摘要 */
.guide-teaser {
  background-color: var(--color-bg-light);
}

.teaser-list {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

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

.teaser-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
}

.teaser-list a::after {
  content: "→";
  color: var(--color-accent);
  font-size: 18px;
  flex-shrink: 0;
}

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

.guide-more {
  max-width: var(--container-width);
  margin: 24px auto 0;
  padding: 0 var(--container-padding);
  text-align: center;
}

.guide-more a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 底部 CTA */
.contact-cta {
  background-color: var(--color-white);
}

.cta-banner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding);
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-banner p {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.5;
}

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

.page-layout.sidebar-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 0;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.services-index {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.services-index h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.services-index ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.services-index a {
  display: block;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.services-index a:hover {
  background-color: rgba(240, 138, 36, 0.08);
  color: var(--color-accent);
}

.services-detail {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.service-block {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.service-block > h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  text-align: left;
}

.service-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  height: 280px;
}

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

.service-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
}

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

.info-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.info-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.info-card p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

/* 服务选型建议 */
.selection-guide {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.selection-guide h2 {
  text-align: center;
  margin-bottom: 32px;
}

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

.guide-card {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.guide-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.guide-card p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

/* 合作方式说明 */
.cooperation-note {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.cooperation-note h2 {
  text-align: center;
  margin-bottom: 16px;
}

.cooperation-note p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 15px;
  color: var(--color-text-body);
  line-height: 1.8;
  text-align: center;
}

/* ==========================================================================
   Pages - 作品展示 (works.html)
   ========================================================================== */

.works-filter {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px var(--container-padding) 0;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-body);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
}

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

.filter-btn.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

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

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

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

.work-figure {
  position: relative;
}

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

.work-figure figcaption {
  padding: 20px;
}

.work-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(240, 138, 36, 0.10);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.work-figure h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.work-figure p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

.process-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.process-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  padding-top: 4px;
}

.step-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
}

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

.step-item h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.process-media {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.process-media .section-heading {
  text-align: left;
}

.process-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 360px;
}

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

.process-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
}

.cycle-note {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.cycle-note h2 {
  text-align: center;
  margin-bottom: 16px;
}

.cycle-note p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 15px;
  color: var(--color-text-body);
  line-height: 1.8;
  text-align: center;
}

.faq-teaser {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.faq-teaser h2 {
  text-align: center;
  margin-bottom: 24px;
}

.faq-teaser-list {
  max-width: 720px;
  margin: 0 auto;
}

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

.faq-item summary {
  padding: 16px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

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

.faq-item p {
  padding: 0 0 16px;
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.faq-more {
  text-align: center;
  margin-top: 24px;
}

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

/* ==========================================================================
   Pages - 拍摄百科 (guide.html)
   ========================================================================== */

.layout-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.layout-shell .page-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
}

.layout-shell .main-content {
  min-width: 0;
}

.main-content .breadcrumb {
  padding: 24px 0 0;
}

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

.qa-section {
  padding-top: 32px;
}

.qa-section h2,
.scene-section h2 {
  text-align: left;
  margin-bottom: 20px;
}

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.qa-item {
  border-bottom: 1px solid var(--color-border);
}

.qa-item summary {
  padding: 16px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.qa-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.qa-item[open] summary::after {
  content: "−";
}

.qa-answer {
  padding: 0 0 16px;
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.scene-section {
  padding-top: 48px;
}

.scene-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 280px;
}

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

.scene-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
}

.scene-section > p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.side-content {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.myth-section,
.boundary-section {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.myth-section h2,
.boundary-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
}

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

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

.myth-item p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.boundary-content p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

.related-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.related-section h2 {
  text-align: center;
  margin-bottom: 24px;
}

.related-section .related-links {
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ==========================================================================
   Pages - 合作咨询 (contact.html)
   ========================================================================== */

.contact-intro {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 0;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.intro-copy h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.intro-copy p {
  font-size: 15px;
  color: var(--color-text-body);
  line-height: 1.8;
  margin-bottom: 16px;
}

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

.intro-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 300px;
}

.intro-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intro-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
}

.cooperation-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.cooperation-steps h2 {
  text-align: center;
  margin-bottom: 32px;
}

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

.step-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

.checklist {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.checklist h2 {
  text-align: center;
  margin-bottom: 12px;
}

.checklist > p {
  max-width: 720px;
  margin: 0 auto 24px;
  font-size: 15px;
  color: var(--color-text-body);
  text-align: center;
}

.checklist ul {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.checklist li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.checklist li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

.boundary {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

.boundary h2 {
  text-align: center;
  margin-bottom: 32px;
}

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

.boundary-col {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.boundary-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.boundary-col p {
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.7;
}

/* ==========================================================================
   Pages - 404 错误页
   ========================================================================== */

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

.error-wrap {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 16px;
}

.error-wrap h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-body);
  line-height: 1.7;
  margin-bottom: 32px;
}

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

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

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

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

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

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

  .layout-shell .page-layout {
    grid-template-columns: 1fr 300px;
    gap: 32px;
  }
}

/* 移动端 */
@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --header-height: 60px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding-top: 8px;
    padding-bottom: 8px;
    gap: 8px;
  }

  .brand {
    order: 1;
  }

  .nav-toggle {
    display: flex;
    order: 2;
    margin-left: auto;
  }

  .main-nav.site-nav {
    order: 3;
    width: 100%;
  }

  .main-nav.site-nav ul {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    border-top: 1px solid var(--color-border);
  }

  .main-nav.site-nav ul.is-open {
    display: flex;
  }

  .main-nav.site-nav li a {
    padding: 14px 8px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

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

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

  .hero-figure {
    height: 240px;
    margin-top: 0;
  }

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

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

  .scene-item img {
    height: 200px;
  }

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

  .process-steps li {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 16px;
  }

  .process-steps li::before {
    margin-bottom: 0;
    flex-shrink: 0;
    font-size: 20px;
  }

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 32px 24px;
  }

  .cta-banner p {
    font-size: 18px;
  }

  /* 内页通用 */
  .breadcrumb {
    padding-top: 16px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .page-header {
    padding-top: 24px;
  }

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

  .section-block {
    padding: 40px 0;
  }

  /* 服务页 */
  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .services-index {
    position: static;
  }

  .services-index ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

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

  .service-figure {
    height: 200px;
  }

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

  /* 作品页 */
  .works-filter {
    gap: 8px;
  }

  .filter-btn {
    padding: 10px 16px;
    font-size: 14px;
  }

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

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

  /* 流程页 */
  .process-step {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }

  .step-number {
    font-size: 22px;
  }

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

  .process-media {
    padding-top: 32px;
  }

  .process-figure {
    height: 220px;
  }

  /* 百科页 */
  .layout-shell .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .side-content {
    position: static;
  }

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

  /* 联系页 */
  .contact-intro {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 24px;
  }

  .intro-media {
    height: 220px;
  }

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

  .checklist ul {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

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

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

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

  /* 404 */
  .error-code {
    font-size: 48px;
  }

  .error-wrap h1 {
    font-size: 22px;
  }

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

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

/* 小屏手机 */
@media (max-width: 390px) {
  .brand a {
    font-size: 18px;
  }

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

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

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

  .checklist ul {
    grid-template-columns: 1fr;
  }
}