/* ==========================================================================
   糖心传媒 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. base
   -------------------------------------------------------------------------- */

:root {
  --paper: #F4F0E6;
  --card: #FBF8F0;
  --ink: #1E1C19;
  --ink-soft: #5A554C;
  --link: #35506B;
  --accent: #7A4B2A;
  --line: #D8D0BE;
  --line-strong: #B9AF97;
  --footer-bg: #23211D;
  --footer-ink: #E8E2D4;
  --footer-soft: #A8A091;
  --radius: 2px;
  --shell: 1180px;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.85;
  text-rendering: optimizeLegibility;
}

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

p {
  margin: 0 0 0.9em;
}

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

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 160ms ease, border-color 160ms ease;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #E6DFCF;
}

figure {
  margin: 0;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

caption {
  text-align: left;
  font-size: 13px;
  color: var(--ink-soft);
  padding-bottom: 8px;
}

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--ink);
  background-color: rgba(216, 208, 190, 0.32);
}

.mono,
.code,
.entry-row__code,
.entry-row__code,
.stage-card__code,
.batch-list__code,
.batch-list__ver,
.summary-card__num,
.advice-item__num,
.path-step__num,
.stage-card__num,
.walkthrough__num,
.clause-item__no,
.missing-order__step,
.step-list__no,
.section__no,
.section-title__num,
.section-heading__num,
.section-index,
.catalog-group__code,
.page-hero__badge,
.page-title__badge,
.page-head__badge,
.error-code {
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 60;
  padding: 10px 16px;
  background-color: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 160ms ease;
}

.skip-link:focus {
  top: 8px;
  color: var(--paper);
}

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

/* --------------------------------------------------------------------------
   2. layout · 骨架
   -------------------------------------------------------------------------- */

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

.site-main {
  display: block;
  width: 100%;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 56px;
}

/* 页头 */
.site-header {
  position: relative;
  z-index: 30;
  background-color: var(--card);
  border-bottom: 1px solid var(--line);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px 12px;
}

.brand-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}

.brand-link:hover {
  color: var(--ink);
}

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

.brand-slogan {
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.header-contact {
  margin-left: auto;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 13.5px;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.header-contact:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 导航 */
.site-nav {
  border-top: 1px solid var(--line);
  background-color: var(--card);
}

.main-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0 26px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.main-nav__item {
  display: flex;
}

.main-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 2px;
  font-size: 14.5px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.main-nav__link:hover {
  color: var(--ink);
}

.main-nav__link.is-current {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--ink);
}

/* 公告条 */
.notice-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 24px;
  background-color: #EDE7D8;
  border-bottom: 1px solid var(--line);
}

.notice-bar__text {
  max-width: var(--shell);
  margin: 0 auto;
  flex: 1 1 auto;
  font-size: 13px;
  color: var(--ink-soft);
  text-align: center;
}

.notice-bar__close {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  padding: 0;
  line-height: 1;
  font-size: 18px;
  color: var(--ink-soft);
  background-color: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.notice-bar__close:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.notice-bar.is-hidden {
  display: none;
}

/* 面包屑 */
.breadcrumb {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px 0;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--line-strong);
}

.breadcrumb__link {
  color: var(--ink-soft);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--accent);
  text-decoration: underline;
}

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

.breadcrumb-sep {
  color: var(--line-strong);
  margin: 0 6px;
}

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

.inner-main > .breadcrumb {
  padding: 18px 0 0;
  max-width: none;
}

/* 页面标题区 */
.page-header {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 10px 24px 0;
}

.inner-main > .page-header {
  max-width: none;
  padding: 8px 0 0;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
  margin: 0;
}

/* 两栏主体 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 44px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 24px 24px 56px;
  align-items: start;
}

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

.layout-sidebar {
  min-width: 0;
}

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

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

/* 页脚 */
.site-footer {
  margin-top: auto;
  background-color: var(--footer-bg);
  color: var(--footer-ink);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr);
  gap: 40px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 44px 24px 32px;
}

.footer-brand__name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: #FBF8F0;
  margin: 0 0 8px;
}

.footer-brand__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--footer-soft);
  max-width: 320px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-col__title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #FBF8F0;
  margin: 0 0 12px;
}

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

.footer-col__list li {
  display: block;
}

.footer-col__list a,
.footer-col__li a {
  font-size: 13.5px;
  color: var(--footer-soft);
  text-decoration: none;
}

.footer-col__list a:hover,
.footer-col__li a:hover {
  color: #FBF8F0;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(232, 226, 212, 0.16);
}

.footer-bottom__archive,
.footer-bottom__copy {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 12.5px;
  color: var(--footer-soft);
}

.footer-bottom__archive {
  padding-bottom: 0;
}

.footer-bottom__copy {
  padding-top: 4px;
  padding-bottom: 20px;
}

/* --------------------------------------------------------------------------
   3. components · 通用组件
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.3;
}

.btn--primary,
.btn-primary {
  background-color: var(--accent);
  color: #FBF8F0;
  border-color: var(--accent);
}

.btn--primary:hover,
.btn-primary:hover {
  background-color: #613a20;
  border-color: #613a20;
  color: #FBF8F0;
}

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

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

.text-link {
  font-size: 14px;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.section {
  margin-top: 48px;
}

.section:first-child {
  margin-top: 0;
}

.section__head {
  margin-bottom: 18px;
}

.section__title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 6px;
}

.section__desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.section__more {
  margin: 16px 0 0;
}

.section__intro {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.section__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.section__no {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  color: var(--accent);
}

.section-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--ink);
}

.section-title__num {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--accent);
}

.section-heading {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--ink);
}

.section-heading__num {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--accent);
}

.section-index {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--accent);
}

.section-lead {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 66ch;
}

/* 结论摘要卡 */
.summary-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 36px;
}

.summary-card__title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--ink);
}

.summary-card__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.summary-card__item,
.summary-card__row {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.summary-card__num {
  flex: 0 0 auto;
  font-size: 12.5px;
  color: var(--accent);
  padding-top: 3px;
}

.summary-card__related {
  margin: 14px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.summary-card__related a {
  margin-right: 14px;
}

/* 图片说明 */
.media-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--card);
  padding: 10px;
}

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

.media-figure--wide img {
  aspect-ratio: 16 / 8;
}

.media-figure__caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.content-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--card);
  padding: 10px;
}

.content-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.content-figure__caption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

.page-figure {
  margin: 0 0 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--card);
  padding: 10px;
}

.page-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.page-figure__caption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

/* 侧栏通用 */
.side-title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.side-block {
  margin-bottom: 28px;
}

.side-block__title,
.sidebar-block__title,
.aside-block__title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.side-block__more {
  margin: 10px 0 0;
  font-size: 13px;
}

.side-block__text,
.sidebar-block__text {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.side-block--note,
.sidebar-block--note {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.side-block__list,
.sidebar-block__list,
.aside-list,
.side-anchor-list,
.sidebar-index,
.sidebar-toc,
.side-block__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-anchor-list__item a,
.sidebar-index__link,
.sidebar-toc__item a,
.aside-list__item a,
.side-block__list a,
.sidebar-block__list a {
  display: block;
  padding: 7px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--line);
}

.side-anchor-list__item a:hover,
.sidebar-index__link:hover,
.sidebar-toc__item a:hover,
.aside-list__item a:hover,
.side-block__list a:hover,
.sidebar-block__list a:hover {
  color: var(--accent);
}

.aside-list__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
}

.aside-list__meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--line-strong);
}

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

.side-link-list__item a,
.side-block__link {
  display: block;
  padding: 7px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--line);
}

.side-link-list__item a:hover,
.side-block__link:hover {
  color: var(--accent);
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-links__item a,
.sidebar-links__link {
  display: block;
  padding: 7px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--line);
}

.sidebar-links__item a:hover,
.sidebar-links__link:hover {
  color: var(--accent);
}

/* 编号条目行 */
.entry-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.entry-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 120px;
  gap: 16px;
  align-items: center;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
}

.entry-row__code {
  font-size: 13px;
  color: var(--accent);
}

.entry-row__info,
.entry-row__body {
  min-width: 0;
}

.entry-row__name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 3px;
}

.entry-row__name a {
  color: var(--ink);
  text-decoration: none;
}

.entry-row__scene {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.entry-row__thumb {
  margin: 0;
}

.entry-row__thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.entry-row__link {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.entry-row:hover .entry-row__code {
  color: var(--ink);
}

.entry-row:hover .entry-row__thumb img {
  border-color: var(--line-strong);
}

/* 阶段卡 */
.stage-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.stage-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.stage-card__code,
.stage-card__num {
  display: block;
  margin: 0 0 6px;
  font-size: 12.5px;
  color: var(--accent);
}

.stage-card__name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 8px;
}

.stage-card__output,
.stage-card__confirm {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.stage-card__detail {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
}

.stage-card__detail dt {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-top: 8px;
}

.stage-card__detail dd {
  margin: 2px 0 0;
  color: var(--ink-soft);
}

/* 勾选列表 */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.check-list__item {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.check-list__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

/* 双列区块 */
.dual-block__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.dual-col {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}

.dual-col__title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 12px;
}

.dual-col__more {
  margin: 12px 0 0;
  font-size: 13.5px;
}

/* 疑问摘要 */
.faq-brief {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.faq-brief__item {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  min-width: 0;
}

.faq-brief__q {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 6px;
}

.faq-brief__a {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 接洽步骤 */
.path-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
}

.path-step {
  position: relative;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.path-step__num {
  display: block;
  margin-bottom: 6px;
  font-size: 12.5px;
  color: var(--accent);
}

.path-step__name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
}

.path-step__desc,
.path-step__output {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.path-step__output {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

/* 折叠问答 */
.qa-item {
  border-bottom: 1px solid var(--line);
}

.qa-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 4px;
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.qa-item__summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 18px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--accent);
  line-height: 1.6;
}

.qa-item[open] .qa-item__summary::before {
  content: "−";
}

.qa-item__summary:hover {
  color: var(--accent);
}

.qa-item__body {
  padding: 0 4px 16px 32px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.qa-item__body p {
  margin: 0 0 10px;
}

.qa-item__link-line {
  margin: 0;
  font-size: 13.5px;
}

/* 条款 */
.clause-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.clause-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
}

.clause-item__no {
  font-size: 12.5px;
  color: var(--accent);
  padding-top: 3px;
}

.clause-item__body {
  min-width: 0;
}

.clause-item__title {
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 4px;
}

.clause-item__text {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.clause-item__apply {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--accent);
}

/* 表格通用补充 */
.boundary-table__caption,
.field-table__caption,
.spec-table__caption {
  font-size: 13px;
  color: var(--ink-soft);
  padding-bottom: 8px;
}

.field-note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

/* 链接列表 */
.link-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px 20px;
}

.link-list__link {
  display: block;
  padding: 10px 12px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  text-decoration: none;
  color: var(--ink);
}

.link-list__link:hover {
  border-color: var(--line-strong);
  color: var(--accent);
}

/* 相关推荐 */
.related-guide__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.related-guide__item {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  min-width: 0;
}

.related-guide__link {
  display: inline-block;
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}

.related-guide__link:hover {
  color: var(--accent);
}

.related-guide__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 走查 */
.walkthrough__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.walkthrough__item {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  min-width: 0;
}

.walkthrough__num {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--accent);
}

.walkthrough__name {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 6px;
}

.walkthrough__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.walkthrough__link {
  margin: 16px 0 0;
  font-size: 13.5px;
}

.walkthrough__link a {
  margin-right: 14px;
}

/* --------------------------------------------------------------------------
   4. pages · 首页
   -------------------------------------------------------------------------- */

.portal-grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 288px;
  gap: 32px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 28px 24px 56px;
  align-items: start;
}

.portal-side {
  min-width: 0;
}

.portal-side--left {
  order: 0;
}

.home-main {
  order: 0;
  min-width: 0;
}

.portal-side--right {
  order: 0;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.category-list__item {
  display: block;
}

.category-list__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--line);
}

.category-list__link .code {
  flex: 0 0 auto;
  font-size: 11.5px;
  color: var(--accent);
}

.category-list__link:hover {
  color: var(--ink);
}

/* 首屏 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: 28px;
  align-items: start;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.hero__body {
  min-width: 0;
}

.hero__eyebrow {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.hero__title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.32;
  margin: 0 0 14px;
  color: var(--ink);
}

.hero__lead {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.hero__quick {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.hero__quick-item {
  display: flex;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.hero__quick-item .code {
  flex: 0 0 auto;
  font-size: 11.5px;
  color: var(--accent);
}

.hero__media {
  margin: 0;
}

.hero__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero__caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* 右栏批次 */
.batch-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.batch-list__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 10px;
  padding-bottom: 10px;
  border-bottom: 1px dotted var(--line);
}

.batch-list__code {
  font-size: 12px;
  color: var(--accent);
}

.batch-list__ver {
  font-size: 11.5px;
  color: var(--line-strong);
  text-align: right;
}

.batch-list__desc {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* 首页规则摘要 */
.rule-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rule-list__item {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-bottom: 10px;
  border-bottom: 1px dotted var(--line);
}

.rule-list__item a {
  color: var(--accent);
}

.rule-list--side {
  margin-top: 4px;
}

/* 首页接洽区 */
.section--contact {
  padding-top: 8px;
}

/* --------------------------------------------------------------------------
   5. pages · 内页通用标题区
   -------------------------------------------------------------------------- */

.page-hero {
  margin: 0 0 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.page-hero__badge,
.page-title__badge,
.page-head__badge {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--accent);
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-hero__summary,
.page-title__summary,
.page-title__lead,
.page-head__summary {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 70ch;
}

.page-hero__meta,
.page-title__meta,
.page-meta,
.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-hero__meta-item,
.page-title__meta-item,
.page-meta__item,
.page-head__meta-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-hero__meta-item dt,
.page-title__meta-item dt,
.page-meta__item dt,
.page-head__meta-item dt {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-hero__meta-item dd,
.page-title__meta-item dd,
.page-meta__item dd,
.page-head__meta-item dd {
  margin: 0;
  font-size: 13px;
  color: var(--ink);
}

/* 内页标题区（delivery-record / questions / service-rules 等） */
.page-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
  margin: 0 0 10px;
}

header.page-title,
section.page-title {
  display: block;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 6px 24px 0;
}

.inner-main > header.page-title,
.inner-main > section.page-title {
  max-width: none;
  padding: 6px 0 0;
}

.page-title__meta {
  margin-top: 12px;
}

.page-head {
  margin: 0 0 30px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

/* 内页 section 间距 */
.inner-main > section,
.layout-main > section,
.content-main > section {
  margin-bottom: 40px;
}

.inner-main > section:last-child,
.layout-main > section:last-child,
.content-main > section:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   6. pages · service-index
   -------------------------------------------------------------------------- */

.catalog-group {
  margin-bottom: 30px;
}

.catalog-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-strong);
}

.catalog-group__code {
  font-size: 12px;
  font-weight: 400;
  color: var(--accent);
}

.catalog-group .entry-row {
  grid-template-columns: 60px minmax(0, 1fr) 110px;
}

.boundary-table {
  margin-bottom: 10px;
}

.boundary-table th:first-child {
  width: 96px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
}

.boundary-table td {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

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

.advice-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.advice-item__num {
  font-size: 12.5px;
  color: var(--accent);
  padding-top: 3px;
}

.advice-item__body {
  min-width: 0;
}

.advice-item__title {
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 700;
  margin: 0 0 4px;
}

.advice-item__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.entry-advice__footnote {
  margin: 18px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.entry-advice__footnote a {
  margin-right: 14px;
}

/* --------------------------------------------------------------------------
   7. pages · delivery-record
   -------------------------------------------------------------------------- */

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

.field-table {
  margin-bottom: 10px;
}

.field-table th:first-child,
.field-table tbody th {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  white-space: nowrap;
}

.field-table td {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   8. pages · preparation
   -------------------------------------------------------------------------- */

.checklist-group {
  margin-bottom: 26px;
}

.checklist-group__title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-strong);
}

.checklist-table th {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
}

.checklist-table td {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.checklist-table td:first-child {
  color: var(--ink);
  font-weight: 600;
  min-width: 88px;
}

.missing-order__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.missing-order__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.missing-order__step {
  grid-row: span 2;
  font-size: 12.5px;
  color: var(--accent);
  padding-top: 3px;
}

.missing-order__title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  margin: 0;
}

.missing-order__item p {
  grid-column: 2;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.handoff__col {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.handoff__title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 10px;
}

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

.handoff__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.handoff__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.handoff__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.handoff__note a {
  margin-right: 14px;
}

/* --------------------------------------------------------------------------
   9. pages · service-rules
   -------------------------------------------------------------------------- */

.rules-block {
  margin-bottom: 40px;
}

.spec-table {
  margin-top: 16px;
}

.spec-table th {
  font-size: 12.5px;
}

.spec-table td {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   10. pages · questions
   -------------------------------------------------------------------------- */

.conclusion-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 30px;
}

.conclusion-card__title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 12px;
}

.conclusion-card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.conclusion-card__item {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.conclusion-card__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.qa-group {
  margin-bottom: 40px;
}

.qa-next {
  padding: 20px 22px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.qa-next p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.qa-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.qa-next__links a {
  font-size: 14px;
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   11. pages · contact
   -------------------------------------------------------------------------- */

.page-wrap {
  display: block;
}

.page-wrap > .breadcrumb {
  padding: 18px 24px 0;
}

.contact-path .step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
}

.step-list__item {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.step-list__no {
  display: block;
  margin-bottom: 6px;
  font-size: 12.5px;
  color: var(--accent);
}

.step-list__title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
}

.step-list__desc,
.step-list__output {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.step-list__output {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.step-list__label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
}

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

.info-list__item {
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.info-list__name {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 4px;
}

.info-list__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.two-col__col {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.two-col__title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 10px;
}

.two-col__note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

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

.plain-list__item {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.plain-list__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.next-step {
  margin-bottom: 0;
}

.next-step__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.next-step__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 10px 0;
  border-bottom: 1px dotted var(--line);
}

.next-step__desc {
  font-size: 13px;
  color: var(--ink-soft);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 16px;
  font-size: 13.5px;
  color: var(--ink);
  background-color: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

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

.share-result {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ink-soft);
  min-height: 1em;
}

/* --------------------------------------------------------------------------
   12. pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: 780px;
  margin: 0 auto;
  padding: 64px 24px 72px;
}

.error-panel {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.error-code {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--accent);
}

.error-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.32;
  margin: 0 0 12px;
}

.error-lead {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 60ch;
}

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

.error-guide {
  padding-top: 24px;
}

.error-guide__title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 12px;
}

.error-guide__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.error-guide__list li a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-guide__list li a:hover {
  border-color: var(--line-strong);
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   13. 动效增强（不改变初始可见性）
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .summary-card,
  .stage-card,
  .path-step,
  .step-list__item,
  .advice-item,
  .missing-order__item {
    transition: border-color 160ms ease, transform 160ms ease;
  }

  .entry-row,
  .qa-item__summary {
    transition: background-color 160ms ease;
  }

  .entry-row:hover {
    background-color: rgba(216, 208, 190, 0.18);
  }
}

/* --------------------------------------------------------------------------
   14. responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .portal-grid {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 28px;
  }

  .portal-side--left {
    order: 2;
    grid-column: 1 / -1;
  }

  .home-main {
    order: 1;
    grid-column: 1;
  }

  .portal-side--right {
    order: 3;
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .category-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0 18px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 30px;
  }

  .stage-archive .stage-list {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

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

@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  .notice-bar {
    padding: 8px 16px;
    gap: 10px;
  }

  .notice-bar__text {
    text-align: left;
    font-size: 12.5px;
  }

  .header-brand {
    flex-wrap: wrap;
    gap: 10px 14px;
    padding: 12px 16px 10px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-slogan {
    flex-basis: 100%;
    font-size: 12px;
  }

  .header-contact {
    margin-left: auto;
    padding: 7px 12px;
    font-size: 13px;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
    margin-left: 8px;
  }

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

  .main-nav__list {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 6px 16px 12px;
  }

  .main-nav__list.is-open {
    display: flex;
  }

  .main-nav__item {
    display: block;
    border-bottom: 1px solid var(--line);
  }

  .main-nav__item:last-child {
    border-bottom: 0;
  }

  .main-nav__link {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 48px;
    padding: 0 4px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding-left: 10px;
  }

  .main-nav__link.is-current {
    border-bottom-color: transparent;
    border-left-color: var(--accent);
  }

  .breadcrumb,
  .page-header,
  .footer-main,
  .footer-bottom__archive,
  .footer-bottom__copy {
    padding-left: 16px;
    padding-right: 16px;
  }

  .inner-main {
    padding: 0 16px 44px;
  }

  .inner-main > .breadcrumb,
  .inner-main > .page-header {
    padding-left: 0;
    padding-right: 0;
  }

  header.page-title,
  section.page-title {
    padding-left: 16px;
    padding-right: 16px;
  }

  .inner-main > header.page-title,
  .inner-main > section.page-title {
    padding-left: 0;
    padding-right: 0;
  }

  .page-wrap > .breadcrumb {
    padding-left: 16px;
    padding-right: 16px;
  }

  .portal-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 20px 16px 44px;
  }

  .portal-side--left {
    order: 2;
    grid-column: 1;
  }

  .home-main {
    order: 1;
    grid-column: 1;
  }

  .portal-side--right {
    order: 3;
    grid-column: 1;
    grid-row: auto;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 20px 16px 44px;
  }

  .layout-sidebar,
  .content-side,
  .page-side,
  .page-sidebar,
  .page-aside {
    order: 2;
  }

  .layout-main,
  .content-main,
  .inner-main {
    order: 1;
  }

  .entry-row,
  .catalog-group .entry-row {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 10px 12px;
    align-items: start;
  }

  .entry-row__thumb {
    grid-column: 2;
    max-width: 180px;
  }

  .entry-row__link {
    grid-column: 2;
  }

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

  .dual-block__grid,
  .handoff__grid,
  .two-col {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-hero__meta,
  .page-title__meta,
  .page-meta,
  .page-head__meta {
    gap: 6px 18px;
  }

  .clause-item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 10px;
  }

  .summary-card,
  .conclusion-card {
    padding: 16px 16px;
  }

  .advice-item,
  .missing-order__item {
    grid-template-columns: 40px minmax(0, 1fr);
    padding: 12px 14px;
  }

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

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

  /* 清单表在窄屏转为分组卡片列表 */
  .checklist-table,
  .checklist-table thead,
  .checklist-table tbody,
  .checklist-table tr,
  .checklist-table th,
  .checklist-table td {
    display: block;
    width: 100%;
  }

  .checklist-table thead {
    display: none;
  }

  .checklist-table tr {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
  }

  .checklist-table th,
  .checklist-table td {
    padding: 2px 0;
    border-bottom: 0;
    background-color: transparent;
  }

  .checklist-table td:first-child {
    min-width: 0;
    font-size: 14px;
  }

  /* 宽表格横向滚动容器 */
  .boundary-table,
  .field-table,
  .spec-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .boundary-table thead,
  .boundary-table tbody,
  .field-table thead,
  .field-table tbody,
  .spec-table thead,
  .spec-table tbody {
    display: table;
    width: 100%;
    min-width: 520px;
  }

  .boundary-table th:first-child {
    width: 80px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 25px;
  }

  .hero__actions .btn {
    flex: 1 1 auto;
  }

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

  .qa-item__body {
    padding-left: 4px;
  }

  .qa-item__summary {
    font-size: 15px;
  }

  .entry-row__thumb {
    max-width: 150px;
  }
}

/* --------------------------------------------------------------------------
   15. print
   -------------------------------------------------------------------------- */

@media print {
  .notice-bar,
  .site-nav,
  .nav-toggle,
  .header-contact,
  .breadcrumb,
  .portal-side,
  .page-side,
  .page-sidebar,
  .page-aside,
  .layout-sidebar,
  .content-side,
  .footer-nav,
  .skip-link,
  .share-btn,
  .share-result {
    display: none !important;
  }

  body {
    background-color: #fff;
    color: #000;
    font-size: 12pt;
  }

  .site-header {
    border-bottom: 1px solid #999;
    background-color: #fff;
  }

  .site-footer {
    background-color: #fff;
    color: #000;
    border-top: 1px solid #999;
  }

  .footer-brand__name,
  .footer-brand__desc,
  .footer-bottom__archive,
  .footer-bottom__copy {
    color: #000;
  }

  .page-layout,
  .portal-grid {
    display: block;
    padding: 0;
  }

  a {
    color: #000;
    text-decoration: none;
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}