/* ==========================================================================
   黄瓜视频 · cdzcar.com  全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --c-ink: #14212e;
  --c-accent: #e2571f;
  --c-accent-dark: #c4451a;
  --c-cat: #1f7a8c;
  --c-note: #8c6a1f;
  --c-bg: #f6f4f0;
  --c-panel: #ffffff;
  --c-line: #d8d4cc;
  --c-muted: #5b6673;
  --c-soft: #f0ede7;
  --c-ink-soft: #2c3a48;
  --header-h: 64px;
  --radius: 6px;
  --shell: 1140px;
  --reading: 720px;
  --wide: 1020px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink);
  background-color: var(--c-bg);
  text-rendering: optimizeLegibility;
}

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--c-ink);
  font-weight: 700;
  line-height: 1.35;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 17px;
}

p {
  margin: 0 0 1.2em;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--c-ink);
  text-decoration: none;
  transition: color 0.18s ease;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: 3px;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

figure {
  margin: 0;
}

figcaption {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

dl,
dd {
  margin: 0;
}

strong {
  font-weight: 600;
}

table {
  border-collapse: collapse;
  width: 100%;
}

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

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--c-panel);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  max-width: var(--shell);
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
  font-size: 19px;
  font-weight: 700;
  color: var(--c-ink);
}

.brand::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  vertical-align: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}

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

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list li {
  display: block;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--c-ink-soft);
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  background: transparent;
  border-radius: 2px;
}

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

.nav-link.is-current {
  color: var(--c-ink);
  font-weight: 600;
}

.nav-link.is-current::after {
  background: var(--c-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
}

.nav-toggle::before {
  top: 16px;
}

.nav-toggle::after {
  bottom: 16px;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.site-footer {
  margin-top: auto;
  background: var(--c-panel);
  border-top: 1px solid var(--c-line);
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-layer + .footer-layer {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--c-line);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
}

.footer-list li + li {
  margin-top: 8px;
}

.footer-list a {
  font-size: 14px;
  color: var(--c-muted);
}

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

.footer-service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 28px;
}

.footer-service-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
}

.footer-service-list a {
  color: var(--c-ink);
  font-weight: 600;
}

.footer-service-note {
  color: var(--c-muted);
  font-size: 13px;
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 24px;
}

.footer-brand {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.footer-slogan {
  margin: 0;
  font-size: 14px;
  color: var(--c-muted);
}

.footer-continue {
  margin: 0;
  font-size: 14px;
  color: var(--c-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}

.footer-continue a {
  color: var(--c-accent);
  font-weight: 600;
}

.footer-continue a:hover {
  color: var(--c-accent-dark);
}

.footer-copy {
  margin: 0;
  flex: 1 1 100%;
  padding-top: 16px;
  font-size: 13px;
  color: var(--c-muted);
}

/* 内页通用外壳：面包屑 / 标题区 */
.breadcrumb {
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--c-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

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

.breadcrumb-current {
  color: var(--c-ink);
  font-weight: 600;
}

.page-header {
  padding: 18px 0 0;
}

.page-title {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--c-ink);
  max-width: var(--wide);
}

/* --------------------------------------------------------------------------
   components · 通用元件
   -------------------------------------------------------------------------- */

.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 13px;
  line-height: 1.7;
  font-weight: 600;
  color: var(--c-cat);
  background: rgba(31, 122, 140, 0.1);
  border: 1px solid rgba(31, 122, 140, 0.28);
  border-radius: 4px;
}

.tag-cat {
  color: var(--c-cat);
}

.tag-accent {
  color: var(--c-accent);
  background: rgba(226, 87, 31, 0.08);
  border-color: rgba(226, 87, 31, 0.3);
}

.tag-category {
  color: var(--c-cat);
}

.tag-content {
  color: var(--c-cat);
}

.tag-limit {
  color: var(--c-note);
  background: rgba(140, 106, 31, 0.1);
  border-color: rgba(140, 106, 31, 0.3);
}

.tag-structure {
  color: var(--c-ink-soft);
  background: var(--c-soft);
  border-color: var(--c-line);
}

.tag-live {
  color: var(--c-accent);
  background: rgba(226, 87, 31, 0.08);
  border-color: rgba(226, 87, 31, 0.28);
}

.tag-product {
  color: var(--c-cat);
  background: rgba(31, 122, 140, 0.1);
  border-color: rgba(31, 122, 140, 0.28);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--c-accent);
  color: #ffffff;
  border-color: var(--c-accent);
}

.btn-primary:hover {
  background: var(--c-accent-dark);
  border-color: var(--c-accent-dark);
  color: #ffffff;
}

.btn-ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line);
}

.btn-ghost:hover {
  border-color: var(--c-ink);
  color: var(--c-ink);
}

.section {
  padding: 56px 0;
}

.section + .section {
  border-top: 1px solid var(--c-line);
}

.section-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.section-inner.narrow {
  max-width: var(--reading);
}

.section-lead,
.section-desc,
.section-lede {
  margin: 12px 0 0;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.content-inner {
  max-width: var(--reading);
  margin: 0 auto;
  padding: 0 24px;
}

.content-section {
  padding: 44px 0;
}

.content-section + .content-section {
  border-top: 1px solid var(--c-line);
}

.content-section .content-inner > h2 {
  margin-bottom: 14px;
}

.content-section .content-inner > p {
  color: var(--c-ink-soft);
}

/* 图片容器统一约束 */
.content-media,
.work-figure,
.content-figure,
.media-figure,
.flow-figure,
.article-figure,
.article-media,
.section-media {
  overflow: hidden;
  background: var(--c-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.content-media img,
.work-figure img,
.content-figure img,
.media-figure img,
.flow-figure img,
.article-figure img,
.article-media img,
.section-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.content-media figcaption,
.work-figure figcaption,
.content-figure figcaption,
.media-figure figcaption,
.flow-figure figcaption,
.article-figure figcaption,
.article-media figcaption,
.section-media figcaption {
  padding: 0 14px 12px;
}

/* 相关页面入口（全站共用） */
.related-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.related-item {
  padding: 16px 18px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.related-item a,
.related-link {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}

.related-item a:hover,
.related-link:hover {
  color: var(--c-accent);
}

.related-item p,
.related-text,
.related-desc,
.related-note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.related-item span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */

.home-main .section:first-child {
  border-top: 0;
}

.hero {
  background: var(--c-panel);
  border-bottom: 1px solid var(--c-line);
  padding: 56px 0 40px;
}

.hero-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  gap: 44px;
  align-items: start;
}

.hero-eyebrow {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-accent);
}

.hero-text h1 {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  margin: 0 0 18px;
}

.hero-lead {
  margin: 0 0 26px;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-muted);
}

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

.hero-panel {
  padding: 22px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.panel-title {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
}

.service-list {
  display: grid;
  gap: 14px;
}

.service-item {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.service-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.service-name {
  display: inline-block;
  margin-right: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}

.service-desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.content-media-primary {
  max-width: var(--shell);
  margin: 40px auto 0;
  padding: 0 24px;
  border: 0;
  background: transparent;
  border-radius: 0;
}

.content-media-primary img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.content-media-primary figcaption {
  padding: 10px 0 0;
}

/* 团队工作方式 */
.work-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 40px;
  align-items: start;
}

.work-figure img {
  aspect-ratio: 4 / 3;
}

.work-text h2 {
  margin-bottom: 12px;
}

.work-step {
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

.work-step:first-of-type {
  border-top: 0;
  padding-top: 8px;
}

.work-step h3 {
  margin-bottom: 6px;
}

.work-step p {
  margin: 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* 问题导航卡片 */
.section-nav-cards h2,
.section-services h2,
.section-flow h2,
.section-scenes h2,
.section-delivery h2,
.section-faq h2,
.section-start h2 {
  margin-bottom: 4px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.nav-card {
  display: block;
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cat);
  border-radius: 8px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.nav-card:hover {
  border-left-color: var(--c-accent);
  transform: translateY(-2px);
}

.nav-card-name {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}

.nav-card-desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.nav-card-meta {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cat);
}

/* 服务全景四列 */
.service-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.service-col {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.service-col h3 {
  margin: 12px 0 8px;
}

.service-goal {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.service-scene {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* 制作流程节点条 */
.flow-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.flow-step {
  padding: 18px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.flow-index {
  display: inline-block;
  min-width: 26px;
  padding: 1px 8px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
  background: var(--c-ink);
  border-radius: 4px;
  font-variant-numeric: tabular-nums;
}

.flow-name {
  display: block;
  margin-top: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink);
}

.flow-party {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--c-cat);
}

.flow-output {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* 业务场景三列 */
.scene-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.scene-col {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-cat);
  border-radius: 8px;
}

.scene-col h3 {
  margin-bottom: 10px;
}

.scene-type {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.scene-prep {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* 协作与交付两列 */
.delivery-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.delivery-col {
  padding: 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.delivery-col h3 {
  margin-bottom: 12px;
}

.plain-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 15px;
  color: var(--c-ink-soft);
  border-top: 1px solid var(--c-line);
}

.plain-list li:first-child {
  border-top: 0;
}

.plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  border-radius: 2px;
}

/* 常见问题折叠 */
.faq-list {
  margin-top: 22px;
  border-top: 1px solid var(--c-line);
}

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

.faq-question {
  position: relative;
  padding: 16px 40px 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-accent);
  border-bottom: 2px solid var(--c-accent);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  transform: rotate(-135deg);
  top: 28px;
}

.faq-answer {
  margin: 0;
  padding: 0 40px 18px 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* 合作起点 */
.start-steps {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.start-step {
  padding: 20px 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 8px;
}

.start-step h3 {
  margin-bottom: 8px;
}

.start-step p {
  margin: 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* --------------------------------------------------------------------------
   pages · 内页通用模块
   -------------------------------------------------------------------------- */

.page-hero {
  padding: 20px 0 0;
}

.page-hero-inner {
  max-width: var(--wide);
}

.page-tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 2px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cat);
  background: rgba(31, 122, 140, 0.1);
  border: 1px solid rgba(31, 122, 140, 0.28);
  border-radius: 4px;
}

.page-lead,
.page-lede {
  margin: 0;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-intro {
  padding: 20px 0 0;
}

.intro-inner {
  max-width: var(--wide);
}

.page-head {
  padding: 20px 0 0;
}

.page-head-inner {
  max-width: var(--wide);
}

/* 内页正文块 */
.content-body,
.content-block,
.article-body {
  padding: 34px 0 0;
}

.content-block .section-title,
.article-body h2 {
  margin-bottom: 12px;
}

.content-body p,
.content-block p,
.article-body p {
  color: var(--c-ink-soft);
}

.content-figure,
.article-figure,
.article-media,
.media-figure,
.flow-figure,
.section-media {
  margin: 22px 0 0;
}

.content-figure img,
.article-figure img,
.article-media img {
  aspect-ratio: 16 / 9;
}

.media-figure img {
  aspect-ratio: 16 / 9;
}

.flow-figure img {
  aspect-ratio: 21 / 9;
}

.section-media img {
  aspect-ratio: 21 / 9;
}

/* 分组标题 */
.section-head,
.group-head {
  max-width: var(--wide);
}

.section-head h2,
.group-head h2 {
  margin-bottom: 8px;
}

.scene-section,
.points-section,
.flow-section,
.materials-section,
.confirm-section,
.section-group,
.section-policy,
.section-feedback,
.section-exclude,
.limits-section,
.choose-section,
.field-legend,
.services-table-section {
  padding: 44px 0;
  border-top: 1px solid var(--c-line);
}

.scene-section .section-inner,
.points-section .section-inner,
.flow-section .section-inner,
.materials-section .section-inner,
.confirm-section .section-inner,
.section-group .section-inner,
.section-policy .section-inner,
.section-feedback .section-inner,
.section-exclude .section-inner,
.limits-section .section-inner,
.choose-section .section-inner,
.field-legend .section-inner,
.services-table-section .section-inner {
  max-width: var(--wide);
}

/* 场景 / 要点条目 */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.scene-card,
.scene-item {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.scene-card h3,
.scene-item h3 {
  margin-bottom: 8px;
}

.scene-tag {
  display: inline-block;
  margin: 0 0 10px;
  padding: 2px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cat);
  background: rgba(31, 122, 140, 0.1);
  border: 1px solid rgba(31, 122, 140, 0.28);
  border-radius: 4px;
}

.scene-item .scene-tag {
  margin: 12px 0 0;
}

.scene-goal,
.scene-type {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-ink-soft);
}

.scene-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.points-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.point-item {
  padding: 18px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cat);
  border-radius: 8px;
}

.point-item h3 {
  margin-bottom: 6px;
}

.point-item p {
  margin: 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* 要点列表（解决方案页） */
.point-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.point-list li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink-soft);
  border-top: 1px solid var(--c-line);
}

.point-list li:first-child {
  border-top: 0;
}

.point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 7px;
  height: 7px;
  background: var(--c-accent);
  border-radius: 2px;
}

.point-list strong {
  color: var(--c-ink);
}

/* 对照表 */
.compare-table-wrap,
.table-wrap {
  margin-top: 22px;
  overflow-x: auto;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.compare-table {
  min-width: 680px;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.compare-table caption {
  text-align: left;
}

.compare-table th,
.compare-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-line);
  border-right: 1px solid var(--c-line);
}

.compare-table th:last-child,
.compare-table td:last-child {
  border-right: 0;
}

.compare-table tbody tr:last-child td {
  border-bottom: 0;
}

.compare-table thead th {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-muted);
  background: var(--c-soft);
  white-space: nowrap;
}

.compare-table tbody tr {
  transition: background-color 0.16s ease;
}

.compare-table tbody tr:hover {
  background: rgba(31, 122, 140, 0.06);
}

.compare-table tbody th {
  font-weight: 700;
  color: var(--c-ink);
  white-space: nowrap;
}

/* 字段说明 */
.legend-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.legend-item {
  padding: 16px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.legend-item dt {
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-muted);
}

.legend-item dd {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* 使用限制 / 选择要点 */
.limits-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.limit-item {
  padding: 18px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-note);
  border-radius: 8px;
}

.limit-item h3 {
  margin-bottom: 6px;
}

.limit-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.choose-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  counter-reset: choose;
}

.choose-item {
  position: relative;
  padding: 18px 20px 18px 58px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
  counter-increment: choose;
}

.choose-item::before {
  content: counter(choose, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-accent);
  font-variant-numeric: tabular-nums;
}

.choose-item h3 {
  margin-bottom: 6px;
}

.choose-item p {
  margin: 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* 流程步骤（操作指南） */
.flow-section .flow-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid var(--c-line);
}

.flow-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
}

.flow-item .flow-index {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  background: var(--c-panel);
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  border-radius: 50%;
}

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

.flow-content .flow-name {
  margin: 0 0 10px;
  font-size: 17px;
}

.flow-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
}

.flow-meta dt {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-muted);
}

.flow-meta dd {
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink-soft);
}

/* 材料与交付物对照 */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.compare-col {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.compare-col-material {
  border-top: 3px solid var(--c-cat);
}

.compare-col-deliverable {
  border-top: 3px solid var(--c-accent);
}

.compare-heading {
  margin-bottom: 12px;
}

.compare-list {
  display: grid;
  gap: 0;
}

.compare-item {
  padding: 12px 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink-soft);
  border-top: 1px solid var(--c-line);
}

.compare-item:first-child {
  border-top: 0;
}

.compare-stage {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cat);
}

.compare-text {
  display: block;
}

/* 确认说明 */
.confirm-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.confirm-item {
  padding: 18px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 8px;
}

.confirm-name {
  margin-bottom: 6px;
}

.confirm-text {
  margin: 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* 排错条目 */
.issue-list {
  display: grid;
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid var(--c-line);
}

.issue-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--c-line);
}

.issue-title {
  margin-bottom: 10px;
}

.issue-cause,
.issue-fix {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink-soft);
}

.issue-fix {
  margin-bottom: 0;
}

.issue-label {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cat);
  background: rgba(31, 122, 140, 0.1);
  border: 1px solid rgba(31, 122, 140, 0.28);
  border-radius: 4px;
}

.issue-fix .issue-label {
  color: var(--c-accent);
  background: rgba(226, 87, 31, 0.08);
  border-color: rgba(226, 87, 31, 0.28);
}

.section-intro .content-inner {
  max-width: var(--reading);
}

.section-intro .content-inner p {
  color: var(--c-ink-soft);
}

/* 支持政策 */
.section-article .section-inner p {
  color: var(--c-ink-soft);
}

.policy-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.policy-item {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.policy-name {
  margin-bottom: 8px;
}

.policy-desc {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.policy-tag {
  display: inline-block;
}

.feedback-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.feedback-step {
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.feedback-step .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background: var(--c-cat);
  border-radius: 50%;
  font-variant-numeric: tabular-nums;
}

.feedback-step .step-name {
  margin-bottom: 6px;
}

.feedback-step .step-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.exclude-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.exclude-item {
  padding: 18px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-note);
  border-radius: 8px;
}

.exclude-name {
  margin-bottom: 6px;
}

.exclude-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* 服务对照表页 */
.services-table-section .section-media {
  max-width: var(--wide);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 64px 24px 72px;
}

.error-block {
  max-width: 640px;
}

.error-code {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-accent);
  font-variant-numeric: tabular-nums;
}

.error-title {
  font-size: 30px;
  margin-bottom: 14px;
}

.error-text {
  margin: 0 0 24px;
  font-size: 16px;
  color: var(--c-muted);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.error-links {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--c-line);
}

.error-links-title {
  margin-bottom: 16px;
}

.error-link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.error-link-list li {
  padding: 16px 18px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 8px;
}

.error-link-list a {
  font-size: 15px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-text h1 {
    font-size: 34px;
  }

  .work-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .service-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .scene-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .legend-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .feedback-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 56px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    display: block;
    padding: 0 16px 12px;
    background: var(--c-panel);
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 12px 24px rgba(20, 33, 46, 0.08);
  }

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

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

  .nav-list li {
    border-top: 1px solid var(--c-line);
  }

  .nav-list li:first-child {
    border-top: 0;
  }

  .nav-link {
    display: flex;
    width: 100%;
    min-height: 48px;
    padding: 0 4px;
    font-size: 16px;
  }

  .nav-link::after {
    left: 4px;
    right: auto;
    width: 28px;
    bottom: 8px;
  }

  .hero {
    padding: 36px 0 28px;
  }

  .hero-inner {
    padding: 0 16px;
  }

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

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .content-media-primary {
    margin-top: 28px;
    padding: 0 16px;
  }

  .content-media-primary img {
    aspect-ratio: 16 / 9;
  }

  .section {
    padding: 40px 0;
  }

  .section-inner,
  .content-inner {
    padding: 0 16px;
  }

  .card-grid,
  .service-columns,
  .scene-columns,
  .delivery-columns,
  .scene-grid,
  .limits-list,
  .compare-grid,
  .exclude-list,
  .error-link-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .flow-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .flow-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 14px;
  }

  .flow-meta {
    grid-template-columns: minmax(0, 1fr);
  }

  .legend-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .feedback-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .inner-main {
    padding: 0 16px 56px;
  }

  .page-title {
    font-size: 24px;
  }

  .breadcrumb {
    padding-top: 16px;
  }

  .footer-inner {
    padding: 36px 16px 24px;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .footer-service-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .error-main {
    padding: 44px 16px 56px;
  }

  .error-title {
    font-size: 24px;
  }

  .error-actions .btn {
    flex: 1 1 auto;
  }

  .compare-table {
    min-width: 620px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .brand {
    font-size: 17px;
  }

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

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

  .section {
    padding: 32px 0;
  }

  .content-section,
  .scene-section,
  .points-section,
  .flow-section,
  .materials-section,
  .confirm-section,
  .section-group,
  .section-policy,
  .section-feedback,
  .section-exclude,
  .limits-section,
  .choose-section,
  .field-legend,
  .services-table-section {
    padding: 32px 0;
  }

  .hero-panel,
  .service-col,
  .scene-col,
  .scene-card,
  .scene-item,
  .nav-card,
  .delivery-col,
  .policy-item,
  .feedback-step,
  .limit-item,
  .exclude-item,
  .compare-col {
    padding: 16px;
  }

  .choose-item {
    padding: 16px 16px 16px 50px;
  }

  .choose-item::before {
    left: 16px;
    top: 16px;
  }

  .faq-question {
    font-size: 15px;
  }

  .faq-answer {
    padding-right: 20px;
  }

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