/* ==========================================================================
   91果冻 · 企业官网样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

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

:root {
  --color-bg: #F6F2E8;
  --color-surface: #FFFDF7;
  --color-surface-alt: #F0EADD;
  --color-ink: #1F2B27;
  --color-ink-soft: #4A5852;
  --color-ink-muted: #6E7A73;
  --color-primary: #2F7D6E;
  --color-primary-dark: #235F54;
  --color-accent: #C85C72;
  --color-line: #D9D2C3;
  --color-line-soft: #E7E0D2;
  --color-warn: #E7B34D;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(31, 43, 39, 0.06);
  --shadow-md: 0 6px 18px rgba(31, 43, 39, 0.08);
  --shell-width: min(1180px, calc(100% - 40px));
  --inner-width: min(1080px, calc(100% - 40px));
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --header-height: 76px;
  --quick-nav-height: 64px;
}

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

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

.site-body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

p {
  margin: 0;
}

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

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-ink-muted);
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  cursor: pointer;
}

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

th,
td {
  text-align: left;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
  color: #fff;
}

/* --------------------------------- layout --------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

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

.brand-mark {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 0 0 auto;
  color: var(--color-ink);
}

.brand-mark:hover,
.brand-mark:focus-visible {
  color: var(--color-primary-dark);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}

.brand-tagline {
  font-size: 12px;
  line-height: 1.4;
  color: var(--color-ink-muted);
}

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 20px;
}

.nav-list li {
  flex: 0 0 auto;
}

.nav-list a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-ink);
  border-bottom: 2px solid transparent;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary);
}

.nav-list a.is-current {
  color: var(--color-primary-dark);
  font-weight: 700;
  border-bottom-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
}

.mobile-nav {
  border-top: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

.mobile-nav-list {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 8px 0 16px;
  display: flex;
  flex-direction: column;
}

.mobile-nav-list a {
  display: block;
  padding: 12px 4px;
  font-size: 16px;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-line-soft);
}

.mobile-nav-list a:hover,
.mobile-nav-list a:focus-visible {
  color: var(--color-primary-dark);
}

.site-main {
  display: block;
}

.home-main {
  width: 100%;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-ink-muted);
}

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

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-primary-dark);
}

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

.breadcrumb-current {
  color: var(--color-ink);
}

.page-header {
  padding: 14px 0 0;
}

.page-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  line-height: 1.3;
  color: var(--color-ink);
}

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

.page-hero-inner {
  max-width: 780px;
}

.page-lead {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.page-kicker {
  margin-bottom: 6px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
}

.section {
  padding: 48px 0;
  border-top: 1px solid var(--color-line-soft);
}

.section:first-of-type {
  border-top: 0;
}

.section-inner {
  width: 100%;
}

.section-head {
  max-width: 780px;
  margin-bottom: 24px;
}

.section-head h2 {
  font-size: 1.5rem;
  line-height: 1.35;
}

.section-head p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.section-lead {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.eyebrow {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
  text-transform: uppercase;
}

.body-text {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.body-text + .body-text {
  margin-top: 14px;
}

.site-footer {
  margin-top: 48px;
  background-color: #202E29;
  color: #E7E2D6;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  width: var(--shell-width);
  margin: 0 auto;
  padding: 48px 0 32px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.85;
  color: #B9C2BA;
}

.footer-name {
  margin-bottom: 10px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: #F6F2E8;
}

.footer-title {
  margin-bottom: 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: #F6F2E8;
}

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

.footer-links a {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  line-height: 1.6;
  color: #C9D2CA;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #F6F2E8;
  text-decoration: underline;
}

.footer-notes p {
  font-size: 13px;
  line-height: 1.8;
  color: #A9B4AC;
}

.footer-note {
  margin-top: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(233, 226, 214, 0.18);
}

.footer-bottom p {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 16px 0 20px;
  font-size: 12px;
  line-height: 1.7;
  color: #99A49C;
}

/* -------------------------------- components ------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFDF7;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
  color: #FFFDF7;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--color-primary);
  color: #FFFDF7;
}

.text-link {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-primary);
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.anchor-list a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-ink-soft);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.anchor-list a:hover,
.anchor-list a:focus-visible {
  color: #FFFDF7;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.page-anchor-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 20px;
}

.page-anchor-bar a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-ink-soft);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.page-anchor-bar a:hover,
.page-anchor-bar a:focus-visible {
  color: #FFFDF7;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
}

.page-hero-meta a {
  font-size: 14px;
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.page-hero-meta a:hover,
.page-hero-meta a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.faq-item + .faq-item {
  margin-top: 10px;
}

.faq-item summary {
  position: relative;
  display: block;
  padding: 16px 44px 16px 18px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-ink);
  list-style: none;
  cursor: pointer;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-primary);
}

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

.faq-item summary:hover {
  color: var(--color-primary-dark);
}

.faq-item p {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.faq-answer p {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.faq-answer p + p {
  padding-top: 0;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 22px 0;
  border-top: 1px solid var(--color-line-soft);
}

.related-links-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-muted);
}

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

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

.privacy-toggle {
  margin-top: 8px;
  padding: 8px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: #E7E2D6;
  background-color: transparent;
  border: 1px solid rgba(233, 226, 214, 0.4);
  border-radius: var(--radius-sm);
}

.privacy-toggle:hover,
.privacy-toggle:focus-visible {
  background-color: rgba(233, 226, 214, 0.12);
  color: #FFFDF7;
}

.privacy-panel {
  margin-top: 12px;
  padding: 14px 16px;
  background-color: rgba(233, 226, 214, 0.08);
  border: 1px solid rgba(233, 226, 214, 0.2);
  border-radius: var(--radius-sm);
}

.privacy-panel p {
  font-size: 13px;
  line-height: 1.75;
  color: #C9D2CA;
}

.privacy-list {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.privacy-list li {
  font-size: 13px;
  line-height: 1.7;
  color: #B9C2BA;
}

.media-figure,
.media-figure img {
  width: 100%;
}

.media-figure img {
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.section-figure {
  margin: 0 0 22px;
}

.section-figure img {
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.data-table {
  min-width: 520px;
}

.data-table caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-ink-muted);
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  vertical-align: top;
  border-top: 1px solid var(--color-line-soft);
}

.data-table thead th {
  background-color: var(--color-surface-alt);
  font-weight: 700;
  color: var(--color-ink);
  border-top: 0;
}

.data-table tbody th {
  width: 34%;
  font-weight: 600;
  color: var(--color-ink);
}

.data-table tbody td {
  color: var(--color-ink-soft);
}

.field-table {
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  table-layout: fixed;
}

.field-table th,
.field-table td {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  vertical-align: top;
  border-top: 1px solid var(--color-line-soft);
  word-break: break-word;
}

.field-table thead th {
  background-color: var(--color-surface-alt);
  font-weight: 700;
  color: var(--color-ink);
  border-top: 0;
}

.field-table tbody th {
  width: 32%;
  font-weight: 600;
  color: var(--color-ink);
}

.field-table tbody td {
  color: var(--color-ink-soft);
}

.term-table {
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  table-layout: fixed;
}

.term-table caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-ink-muted);
  text-align: left;
}

.term-table th,
.term-table td {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  vertical-align: top;
  border-top: 1px solid var(--color-line-soft);
  word-break: break-word;
}

.term-table thead th {
  background-color: var(--color-surface-alt);
  font-weight: 700;
  color: var(--color-ink);
  border-top: 0;
}

.term-table tbody th {
  width: 40%;
  font-weight: 600;
  color: var(--color-ink);
}

.term-table tbody td {
  color: var(--color-ink-soft);
}

.fit-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.fit-col {
  padding: 22px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.fit-col h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

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

.fit-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.fit-list li::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.fit-col-no .fit-list li::before {
  background-color: var(--color-accent);
}

.fit-yes,
.fit-col-yes {
  border-top: 3px solid var(--color-primary);
}

.fit-no,
.fit-col-no {
  border-top: 3px solid var(--color-accent);
}

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

.boundary-item {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-warn);
  border-radius: var(--radius-md);
}

.boundary-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.boundary-item p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.boundary-note {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 14px;
  color: var(--color-ink-muted);
}

.boundary-note a {
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.boundary-note a:hover,
.boundary-note a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.related-entry .entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.entry-card {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.entry-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.entry-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

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

.entry-card h3 a:hover,
.entry-card h3 a:focus-visible {
  color: var(--color-primary-dark);
}

.entry-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.entry-list li {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.entry-list a {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
}

.entry-list a:hover,
.entry-list a:focus-visible {
  color: var(--color-primary-dark);
}

.entry-list span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.content-section {
  padding: 40px 0;
  border-top: 1px solid var(--color-line-soft);
}

.content-section > h2 {
  font-size: 1.5rem;
  line-height: 1.35;
  margin-bottom: 14px;
}

.content-section > p {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.check-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border: 2px solid var(--color-primary);
  border-radius: 2px;
}

.confirm-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.confirm-list li {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.confirm-q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-ink);
}

.confirm-link {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
}

.confirm-link a {
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.confirm-link a:hover,
.confirm-link a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* --------------------------------- pages --------------------------------- */

/* 首页 */

.hero-section {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 48px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

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

.hero-copy h1 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  line-height: 1.3;
  margin-top: 6px;
}

.hero-lead {
  max-width: 560px;
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--color-line);
}

.hero-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.hero-points li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.hero-visual {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-figure {
  margin: 0;
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.hero-path {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.path-node {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
}

.path-num {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.path-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-ink);
}

.path-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.position-strip {
  width: var(--shell-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background-color: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.strip-item {
  padding: 18px 20px;
  background-color: var(--color-surface);
}

.strip-label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
}

.strip-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.directions-section,
.catalog-preview,
.process-track,
.scenario-section,
.faq-summary {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 52px 0;
  border-top: 1px solid var(--color-line-soft);
}

.directions-section .section-head,
.catalog-preview .section-head,
.process-track .section-head,
.scenario-section .section-head,
.faq-summary .section-head {
  max-width: 780px;
  margin-bottom: 26px;
}

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

.direction-item {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--color-line);
}

.direction-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.direction-left {
  min-width: 0;
}

.direction-left h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.direction-scene {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-muted);
}

.direction-right {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.direction-right p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.catalog-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.catalog-group {
  padding: 22px 22px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.catalog-group h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line-soft);
}

.catalog-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.catalog-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.catalog-points li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.catalog-figure {
  margin-top: 24px;
}

.catalog-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.track-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  counter-reset: track;
}

.track-step {
  position: relative;
  padding: 18px 16px 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.track-num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.track-step h3 {
  font-size: 1rem;
  line-height: 1.45;
  margin-bottom: 6px;
}

.track-step p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.track-more {
  margin-top: 22px;
  font-size: 14px;
}

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

.scenario-item {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 28px;
  align-items: start;
  padding: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.scenario-left {
  min-width: 0;
}

.scenario-left h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.scenario-left > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.scenario-check {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--color-primary);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink);
}

.scenario-myth {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--color-ink-muted);
}

.scenario-figure {
  margin: 0;
}

.scenario-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.scenario-more {
  margin-top: 22px;
  font-size: 14px;
}

.brief-preview {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 52px 0;
  border-top: 1px solid var(--color-line-soft);
}

.brief-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 40px;
  align-items: start;
}

.brief-left {
  min-width: 0;
}

.brief-left h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.brief-left > p {
  max-width: 560px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

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

.brief-list li {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.brief-list h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.brief-list p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.brief-right {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}

.brief-figure {
  margin: 0;
  width: 100%;
}

.brief-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

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

.faq-more {
  margin-top: 20px;
  font-size: 14px;
}

/* 品牌定位 */

.brand-focus-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 36px;
  align-items: start;
}

.brand-focus-text {
  min-width: 0;
}

.brand-focus-text h2 {
  font-size: 1.5rem;
  margin-bottom: 14px;
}

.brand-focus-text p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.brand-focus-text p + p {
  margin-top: 14px;
}

.brand-focus-media {
  margin: 0;
  min-width: 0;
}

.brand-focus-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.principle-item {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.principle-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.principle-item p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.principle-apply {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--color-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-ink-muted);
}

/* 协作方向 */

.anchor-nav {
  margin-top: 18px;
}

.direction-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.direction-index li {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.direction-no {
  flex: 0 0 auto;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
}

.direction-index a {
  display: block;
  color: var(--color-ink);
}

.direction-index a:hover,
.direction-index a:focus-visible {
  color: var(--color-primary-dark);
}

.direction-index h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.direction-index p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.directions-section .direction-list,
.services .direction-list,
#product .direction-list {
  display: flex;
  flex-direction: column;
}

#product .direction-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--color-line);
}

#product .direction-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.direction-main {
  min-width: 0;
}

.direction-main h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.direction-main p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.direction-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.direction-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
}

.direction-side p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.media-split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 32px;
  align-items: start;
}

.media-text {
  min-width: 0;
}

.media-text h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.media-text h3 + p {
  margin-bottom: 18px;
}

.media-text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.media-text .text-link {
  margin-top: 6px;
}

.media-figure {
  margin: 0;
  min-width: 0;
}

.media-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.output-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.output-item {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.output-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.output-item > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.output-link {
  margin-top: 10px;
  font-size: 14px;
}

.section-related .related-links {
  border-top: 0;
  padding: 0;
}

/* 产品方向目录 */

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 18px;
}

.hero-facts li {
  padding: 6px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-ink-soft);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.catalog-guide {
  padding: 40px 0 32px;
  border-top: 1px solid var(--color-line-soft);
}

.catalog-guide h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.catalog-guide > p {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.guide-tips {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.guide-tips li {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.guide-tips strong {
  color: var(--color-ink);
}

.anchor-bar {
  padding: 18px 0 4px;
}

.catalog-group {
  padding: 44px 0;
  border-top: 1px solid var(--color-line-soft);
}

.group-head {
  max-width: 780px;
  margin-bottom: 20px;
}

.group-head h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.group-head p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.group-media {
  margin: 0 0 24px;
}

.group-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.catalog-group .direction-list {
  display: flex;
  flex-direction: column;
}

.catalog-group .direction-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 32px;
  padding: 20px 0;
  border-top: 1px solid var(--color-line);
}

.catalog-group .direction-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.catalog-close {
  padding: 44px 0;
  border-top: 1px solid var(--color-line-soft);
}

.catalog-close h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.catalog-close > p {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.close-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.close-item {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.close-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.close-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.close-item a {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.close-item a:hover,
.close-item a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* 合作流程 */

.overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: start;
}

.step-index {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-index li {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.step-index a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--color-ink);
}

.step-index a:hover,
.step-index a:focus-visible {
  color: var(--color-primary-dark);
}

.step-index .step-num {
  flex: 0 0 auto;
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.overview-figure {
  margin: 0;
}

.overview-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.step-block {
  padding: 26px 0;
  border-top: 1px solid var(--color-line);
}

.step-block:last-child {
  border-bottom: 1px solid var(--color-line);
}

.step-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.step-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 32px;
  padding: 0 10px;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: #FFFDF7;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
}

.step-header h3 {
  font-size: 1.2rem;
}

.step-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.step-col {
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.step-col h4 {
  margin-bottom: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
}

.step-col p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.step-col p a {
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.step-col p a:hover,
.step-col p a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* 场景解读 */

.page-anchors {
  margin-top: 18px;
}

.scene-intro {
  padding: 40px 0 32px;
  border-top: 1px solid var(--color-line-soft);
}

.scene-intro h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.reading-tips {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 18px;
}

.reading-tips li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.reading-tips li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.scene-block {
  padding: 44px 0;
  border-top: 1px solid var(--color-line-soft);
}

.scene-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 36px;
  align-items: start;
}

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

.scene-index {
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark);
}

.scene-content h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.scene-content h3 {
  margin-top: 20px;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.scene-media {
  margin: 0;
  min-width: 0;
}

.scene-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.scene-notes {
  min-width: 0;
  padding: 22px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.scene-notes h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.scene-checklist {
  padding: 44px 0;
}

.scene-checklist h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

/* 术语索引 */

.glossary-intro {
  padding: 40px 0 32px;
  border-top: 1px solid var(--color-line-soft);
}

.glossary-intro h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.glossary-intro p {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.hint-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.hint-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.hint-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  border: 2px solid var(--color-primary);
  border-radius: 2px;
}

.glossary-block {
  padding: 44px 0;
  border-top: 1px solid var(--color-line-soft);
}

.glossary-block h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.glossary-block > p {
  max-width: 780px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.glossary-figure {
  margin: 22px 0;
}

.glossary-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.term-list {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: 1px;
  background-color: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.term-list dt {
  padding: 14px 18px;
  background-color: var(--color-surface-alt);
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
}

.term-list dd {
  margin: 0;
  padding: 14px 18px;
  background-color: var(--color-surface);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.term-list dd a {
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.term-list dd a:hover,
.term-list dd a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.glossary-index {
  padding: 44px 0;
  border-top: 1px solid var(--color-line-soft);
}

.glossary-index h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.glossary-index > p {
  max-width: 780px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-ink-soft);
  margin-bottom: 20px;
}

/* 常见问题 */

.guide-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.guide-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.guide-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.faq-group {
  padding: 40px 0;
}

.faq-group h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.section-note {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-muted);
}

/* 资料准备 */

.brief-hero .page-anchor-bar {
  margin-top: 20px;
}

.brief-checklist .section-head {
  margin-bottom: 20px;
}

.checklist-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: checklist;
}

.checklist-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.checklist-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary-dark);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-sm);
}

.checklist-body {
  min-width: 0;
}

.checklist-body h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.checklist-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.checklist-note {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 28px;
  align-items: start;
}

.tool-fields {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tool-group {
  margin: 0;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.tool-group legend {
  padding: 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
}

.tool-option {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 4px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-ink-soft);
  cursor: pointer;
}

.tool-input {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.tool-result {
  min-width: 0;
  padding: 22px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.tool-result h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.result-empty {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-muted);
}

.result-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.result-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.result-pages {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-line);
}

.result-pages h4 {
  margin-bottom: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.result-pages ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.result-pages a {
  font-size: 14px;
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-line);
}

.result-pages a:hover,
.result-pages a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.result-tip {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.brief-fields .field-table {
  margin-top: 8px;
}

.limits-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.limits-list li {
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.limits-list h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.limits-list p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.next-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.next-link:hover,
.next-link:focus-visible {
  color: #FFFDF7;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* 404 */

.error-main {
  width: var(--inner-width);
  margin: 0 auto;
  padding: 64px 0 40px;
}

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

.error-code {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.error-panel h1 {
  margin-top: 8px;
  font-size: clamp(2rem, 4vw, 2.6rem);
  line-height: 1.3;
}

.error-lead {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 22px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  color: #FFFDF7;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
}

.error-home-link:hover,
.error-home-link:focus-visible {
  color: #FFFDF7;
  background-color: var(--color-primary-dark);
}

.error-links {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--color-line-soft);
}

.error-links h2 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.error-links p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.error-link-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.error-link-list a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.error-link-list a:hover,
.error-link-list a:focus-visible {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

/* 移动端快捷导航 */

.quick-nav,
.mobile-quick-nav,
.mobile-quicknav {
  display: none;
}

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

@media (max-width: 960px) {

  .header-inner {
    gap: 16px;
  }

  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .mobile-nav[hidden] {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-lead {
    max-width: none;
  }

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

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

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

  .brief-grid,
  .brand-focus-grid,
  .media-split,
  .overview-grid,
  .tool-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .scene-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .scenario-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .step-cols {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {

  :root {
    --shell-width: calc(100% - 32px);
    --inner-width: calc(100% - 32px);
  }

  .site-body {
    font-size: 15px;
    padding-bottom: calc(var(--quick-nav-height) + env(safe-area-inset-bottom));
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-tagline {
    font-size: 11px;
  }

  .hero-section {
    padding: 32px 0 28px;
  }

  .hero-copy h1 {
    font-size: 1.75rem;
    line-height: 1.35;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-actions .btn {
    flex: 1 1 160px;
  }

  .hero-path {
    grid-template-columns: minmax(0, 1fr);
    padding: 12px;
  }

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

  .directions-section,
  .catalog-preview,
  .process-track,
  .scenario-section,
  .faq-summary,
  .brief-preview {
    padding: 36px 0;
  }

  .direction-item,
  #product .direction-item,
  .catalog-group .direction-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 20px 0;
  }

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

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

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

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

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

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

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

  .section {
    padding: 32px 0;
  }

  .content-section {
    padding: 30px 0;
  }

  .page-title {
    font-size: 1.75rem;
  }

  .section-head h2,
  .content-section > h2,
  .catalog-guide h2,
  .group-head h2,
  .catalog-close h2,
  .scene-intro h2,
  .scene-content h2,
  .scene-checklist h2,
  .glossary-intro h2,
  .glossary-block h2,
  .glossary-index h2,
  .faq-group h2,
  .brief-left h2,
  .brand-focus-text h2,
  .error-links h2 {
    font-size: 1.3rem;
  }

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

  .term-list dt {
    padding-bottom: 4px;
  }

  .term-list dd {
    padding-top: 4px;
  }

  .data-table {
    min-width: 480px;
  }

  .field-table,
  .term-table {
    table-layout: auto;
  }

  .field-table tbody th,
  .term-table tbody th {
    width: 38%;
  }

  .checklist-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .checklist-index {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .tool-result {
    padding: 18px 18px;
  }

  .step-badge {
    min-width: 36px;
    height: 28px;
    font-size: 13px;
  }

  .step-header h3 {
    font-size: 1.05rem;
  }

  .error-main {
    padding: 40px 0 32px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px 0 24px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom p {
    padding: 14px 0 calc(20px + env(safe-area-inset-bottom));
  }

  .quick-nav,
  .mobile-quick-nav,
  .mobile-quicknav {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-line);
    padding-bottom: env(safe-area-inset-bottom);
  }

  .quick-nav-list,
  .mobile-quicknav .quicknav-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 100%;
  }

  .quick-nav-list li,
  .quicknav-list li {
    min-width: 0;
  }

  .quick-nav-list a,
  .quicknav-list a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: var(--quick-nav-height);
    padding: 6px 4px;
    font-size: 13px;
    line-height: 1.4;
    text-align: center;
    color: var(--color-ink-soft);
    word-break: keep-all;
  }

  .quick-nav-list a:hover,
  .quick-nav-list a:focus-visible,
  .quicknav-list a:hover,
  .quicknav-list a:focus-visible {
    color: var(--color-primary-dark);
  }
}

@media (max-width: 400px) {

  .hero-copy h1 {
    font-size: 1.6rem;
  }

  .page-title {
    font-size: 1.6rem;
  }

  .quick-nav-list a,
  .quicknav-list a {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}