/* ==========================================================================
   被窝网电影 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

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

:root {
  --color-bg: #ffffff;
  --color-surface: #f4f1ea;
  --color-surface-alt: #ece7dc;
  --color-primary: #2f5d50;
  --color-primary-soft: #e3ede8;
  --color-accent-ochre: #8a6a3b;
  --color-accent-ochre-soft: #f0e6d6;
  --color-accent-blue: #3a6ea5;
  --color-accent-blue-soft: #e4ecf5;
  --color-text: #26302c;
  --color-text-soft: #55605a;
  --color-line: #d9d3c6;
  --color-line-strong: #c3bcac;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
  --radius: 6px;
  --radius-sm: 4px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 2px rgba(38, 48, 44, 0.06), 0 6px 18px rgba(38, 48, 44, 0.05);
  --shadow-hover: 0 2px 4px rgba(38, 48, 44, 0.08), 0 10px 26px rgba(38, 48, 44, 0.09);
  --container: 1120px;
  --header-height: 64px;
}

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

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

body.site-body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: normal;
}

p {
  margin: 0;
}

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

dl,
dd,
dt {
  margin: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

figure {
  margin: 0;
}

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
}

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

strong {
  font-weight: 600;
}

time {
  font-variant-numeric: tabular-nums;
}

.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;
}

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

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

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--color-text);
  font-weight: 700;
}

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

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  box-shadow: inset 0 0 0 5px var(--color-primary-soft);
}

.brand-name {
  font-size: 18px;
  line-height: 1.2;
}

.site-nav {
  margin-left: auto;
}

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

.nav-list > li {
  display: block;
}

.nav-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}

.nav-list > li > a:hover,
.nav-list > li > a:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.nav-list > li > a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background-color: var(--color-primary-soft);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle:hover {
  background-color: var(--color-surface);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--color-text);
}

.topbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

.topbar-text {
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 24px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.6;
}

.site-main {
  display: block;
}

.home-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
}

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

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-line);
  color: var(--color-text-soft);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 44px 24px 28px;
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(140px, 1fr));
  gap: 32px 28px;
}

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

.footer-name {
  color: var(--color-text);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

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

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

.footer-bottom {
  border-top: 1px solid var(--color-line);
}

.footer-copy {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  font-size: 13px;
  color: var(--color-text-soft);
}

/* --------------------------------------------------------------------------
   components · 通用
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #26493f;
  color: #ffffff;
}

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

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

.subnav {
  border-bottom: 1px solid var(--color-line);
  background-color: var(--color-bg);
}

.subnav-list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.subnav-list > li {
  flex: 0 0 auto;
}

.subnav-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  color: var(--color-text-soft);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.subnav-list > li > a:hover,
.subnav-list > li > a:focus-visible {
  color: var(--color-primary);
}

.subnav-list > li > a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-primary);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 4px;
  font-size: 14px;
  color: var(--color-text-soft);
}

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

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

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

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

.page-header {
  padding: 12px 0 24px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
}

.page-description {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-soft);
}

.page-points {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-points > li {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  color: var(--color-text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.section {
  margin-bottom: 56px;
}

.section-head {
  margin-bottom: 22px;
}

.section-title,
.section-head h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}

.section-intro,
.section-lead {
  max-width: 800px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-soft);
}

.section-foot,
.section-note {
  margin-top: 18px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.section-foot a,
.section-note a {
  font-weight: 500;
}

.section-note a + a {
  margin-left: 16px;
}

.section-media,
.channel-figure,
.guide-figure {
  margin: 0 0 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-surface);
}

.section-media img,
.channel-figure img,
.guide-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
  height: auto;
  object-fit: cover;
}

.section-media figcaption,
.channel-figure figcaption,
.guide-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
  background-color: var(--color-bg);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
}

.data-table,
.channel-table {
  min-width: 720px;
  font-size: 14px;
}

.table-caption {
  padding: 14px 16px;
  text-align: left;
  font-size: 13px;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

.data-table thead th,
.channel-table thead th {
  padding: 12px 14px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line-strong);
  white-space: nowrap;
}

.data-table tbody th,
.data-table tbody td,
.channel-table tbody th,
.channel-table tbody td {
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-line);
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td,
.channel-table tbody tr:last-child th,
.channel-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:nth-child(even),
.channel-table tbody tr:nth-child(even) {
  background-color: var(--color-surface);
}

.data-table tbody tr:hover,
.channel-table tbody tr:hover {
  background-color: var(--color-primary-soft);
}

.data-table tbody th,
.channel-table tbody th {
  color: var(--color-text);
  font-weight: 600;
}

.cell-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-ochre);
  white-space: nowrap;
}

.cell-name {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.field-tag,
.field-label {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-text-soft);
  font-size: 12px;
  line-height: 1.7;
  white-space: nowrap;
}

.field-name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-blue);
}

.link-inline {
  font-weight: 500;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: start;
  padding: 40px 0 48px;
}

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

.hero-eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
}

.hero-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.32;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-soft);
  max-width: 620px;
}

.hero-points {
  margin: 22px 0 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-points > li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.hero-points > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-ochre);
}

.hero-points strong {
  color: var(--color-text);
  margin-right: 6px;
}

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

.hero-visual {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: cover;
}

.hero-caption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

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

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

.special-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.special-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.special-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-line-strong);
  transform: translateY(-2px);
}

.special-media {
  margin: 0;
  background-color: var(--color-surface);
}

.special-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  object-fit: cover;
}

.special-body {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.special-name {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
}

.special-name a {
  color: var(--color-text);
}

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

.special-scope,
.special-count,
.special-logic {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.special-logic {
  color: var(--color-text);
}

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

.record-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.record-group {
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.record-month {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line-strong);
}

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

.record-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  min-width: 0;
}

.record-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent-blue);
  white-space: nowrap;
  padding-top: 2px;
}

.record-type {
  display: inline-block;
  justify-self: start;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-ochre-soft);
  color: var(--color-accent-ochre);
  font-size: 12px;
  line-height: 1.7;
}

.record-text,
.record-summary {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

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

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

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

.guide-subtitle {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
}

.field-table {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-size: 14px;
}

.field-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line-strong);
}

.field-table tbody th,
.field-table tbody td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-line);
}

.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td {
  border-bottom: 0;
}

.field-table tbody th {
  color: var(--color-text);
  font-weight: 600;
  white-space: nowrap;
}

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

.bound-list > li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.bound-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-blue);
}

.guide-more {
  margin-top: 18px;
  font-size: 14px;
}

.index-section {
  margin-bottom: 24px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.index-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.index-name {
  font-size: 16px;
  font-weight: 600;
}

.index-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-soft);
  flex: 1 1 auto;
}

.index-link {
  font-size: 14px;
  font-weight: 600;
}

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

.sub-tabs {
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 32px;
}

.sub-tabs-list {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.sub-tabs-list > li {
  flex: 0 0 auto;
}

.sub-tabs-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  color: var(--color-text-soft);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.sub-tabs-list > li > a:hover,
.sub-tabs-list > li > a:focus-visible {
  color: var(--color-primary);
}

.sub-tabs-list > li > a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-primary);
}

.row-link {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

/* 题材频道页 */

.consistency-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.consistency-fields,
.consistency-notes {
  min-width: 0;
}

.sub-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
}

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

.field-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background-color: var(--color-bg);
}

.field-item .field-name {
  flex: 0 0 auto;
}

.field-desc {
  flex: 1 1 200px;
  min-width: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.diff-list {
  display: grid;
  grid-template-columns: minmax(120px, auto) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.diff-list dt,
.diff-list dd {
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid var(--color-line);
}

.diff-list dt {
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-line);
}

.diff-list dd {
  color: var(--color-text-soft);
}

.diff-list dt:last-of-type,
.diff-list dd:last-of-type {
  border-bottom: 0;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.choice-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.choice-card:hover {
  box-shadow: var(--shadow-card);
  border-color: var(--color-line-strong);
  border-left-color: var(--color-accent-ochre);
}

.choice-card .card-title {
  font-size: 16px;
  font-weight: 600;
}

.choice-card .card-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
  flex: 1 1 auto;
}

.choice-card .card-meta {
  font-size: 13px;
  color: var(--color-accent-blue);
  padding-top: 8px;
  border-top: 1px dashed var(--color-line);
}

/* 专题片单页 */

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

.specials-list-section .special-card {
  scroll-margin-top: 80px;
}

.logic-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

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

.column-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
}

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

.logic-list > li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.logic-list > li .field-label {
  vertical-align: middle;
}

.relation-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.relation-table {
  min-width: 640px;
  font-size: 14px;
}

.relation-table thead th {
  padding: 12px 14px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line-strong);
  white-space: nowrap;
}

.relation-table tbody th,
.relation-table tbody td {
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-line);
}

.relation-table tbody th {
  color: var(--color-text);
  font-weight: 600;
  white-space: nowrap;
}

.relation-table tbody tr:last-child th,
.relation-table tbody tr:last-child td {
  border-bottom: 0;
}

.relation-table tbody tr:nth-child(even) {
  background-color: var(--color-surface);
}

.relation-note {
  margin-top: 18px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.relation-note a + a {
  margin-left: 16px;
}

/* 整理记录页 */

.records-timeline {
  margin-bottom: 56px;
}

.records-timeline h2,
.change-types h2,
.change-query h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}

.records-timeline .section-intro,
.change-types .section-intro,
.change-query .section-intro {
  max-width: 800px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-soft);
  margin-bottom: 22px;
}

.records-timeline .record-month {
  margin-bottom: 24px;
  padding: 18px 20px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
}

.records-timeline .record-month-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.records-timeline .record-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.records-timeline .record-item {
  display: grid;
  grid-template-columns: 96px 110px minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  padding-left: 16px;
  border-left: 2px solid var(--color-primary-soft);
}

.records-timeline .record-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-blue);
}

.records-timeline .record-type {
  display: inline-block;
  justify-self: start;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 12px;
  line-height: 1.7;
}

.records-timeline .record-scope {
  font-size: 13px;
  color: var(--color-accent-ochre);
}

.records-timeline .record-summary {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.change-types {
  margin-bottom: 56px;
}

.change-type-table {
  margin-top: 4px;
}

.change-query {
  margin-bottom: 24px;
}

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

.query-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.query-card-title {
  font-size: 16px;
  font-weight: 600;
}

.query-card-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

/* 浏览指引页 */

.guide-fields,
.guide-boundary,
.guide-path,
.guide-faq,
.guide-next {
  margin-bottom: 56px;
}

.guide-fields h2,
.guide-boundary h2,
.guide-path h2,
.guide-faq h2,
.guide-next h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}

.guide-fields .section-intro,
.guide-boundary .section-intro,
.guide-path .section-intro,
.guide-faq .section-intro,
.guide-next .section-intro {
  max-width: 800px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-soft);
  margin-bottom: 22px;
}

.guide-fields .field-table {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.guide-fields .field-row {
  display: grid;
  grid-template-columns: minmax(140px, 0.8fr) minmax(0, 1.4fr) minmax(0, 1.2fr);
  gap: 0;
  border-bottom: 1px solid var(--color-line);
}

.guide-fields .field-row:last-child {
  border-bottom: 0;
}

.guide-fields .field-row > span {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
  min-width: 0;
}

.guide-fields .field-row > span + span {
  border-left: 1px solid var(--color-line);
}

.guide-fields .field-head {
  background-color: var(--color-surface);
}

.guide-fields .field-head > span {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.guide-fields .field-row:nth-child(odd):not(.field-head) {
  background-color: var(--color-bg);
}

.guide-fields .field-row:nth-child(even) {
  background-color: var(--color-surface);
}

.boundary-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

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

.boundary-in {
  border-top: 3px solid var(--color-primary);
}

.boundary-out {
  border-top: 3px solid var(--color-accent-ochre);
  background-color: var(--color-surface);
}

.boundary-col h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
}

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

.boundary-list > li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

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

.boundary-out .boundary-list > li::before {
  background-color: var(--color-accent-ochre);
}

.boundary-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.path-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: path-step;
}

.path-step {
  position: relative;
  min-width: 0;
  padding: 20px 16px 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  counter-increment: path-step;
}

.path-step::before {
  content: counter(path-step, decimal-leading-zero);
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-blue);
}

.path-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.path-step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

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

.faq-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  overflow: hidden;
}

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

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

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

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

.faq-item summary:hover {
  background-color: var(--color-surface);
}

.faq-item p {
  padding: 14px 18px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}

.guide-next-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.guide-next-links > li {
  min-width: 0;
}

.guide-next-links > li > a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: 15px;
  font-weight: 600;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.guide-next-links > li > a:hover,
.guide-next-links > li > a:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

/* 问题反馈页 */

.section-feedback-types,
.section-feedback-content,
.section-feedback-process,
.section-feedback-links {
  margin-bottom: 56px;
}

.feedback-type-table {
  margin-top: 4px;
}

.feedback-info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

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

.info-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.info-card-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.feedback-note {
  margin-top: 22px;
  padding: 18px 20px;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent-blue);
  border-radius: var(--radius-lg);
  background-color: var(--color-accent-blue-soft);
}

.feedback-note-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feedback-note p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-soft);
}

.feedback-note a + a {
  margin-left: 14px;
}

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

.process-step {
  min-width: 0;
  padding: 20px 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.process-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 12px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 14px;
}

.process-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.process-footer {
  margin-top: 22px;
  padding: 16px 20px;
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
}

.process-footer-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.link-card-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.link-card {
  min-width: 0;
}

.link-card-anchor {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 100%;
  padding: 18px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.link-card-anchor:hover,
.link-card-anchor:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
}

.link-card-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.link-card-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

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

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

.error-panel {
  max-width: 720px;
  margin: 48px auto;
  padding: 36px 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  text-align: center;
}

.error-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 14px;
}

.error-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-soft);
  margin-bottom: 22px;
}

.error-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto 26px;
  text-align: left;
}

.error-list > li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

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

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

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

@media (max-width: 1024px) {
  .index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .choice-grid,
  .feedback-info-grid,
  .link-card-list,
  .guide-next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: minmax(200px, 1.2fr) repeat(3, minmax(120px, 1fr));
    gap: 28px 20px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    padding: 0 18px;
    gap: 12px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 12px 24px rgba(38, 48, 44, 0.08);
    padding: 8px 18px 14px;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

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

  .nav-list > li > a {
    min-height: 48px;
    padding: 0 14px;
    font-size: 16px;
    border-radius: var(--radius);
  }

  .topbar-text {
    padding: 10px 18px;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding-left: 18px;
    padding-right: 18px;
  }

  .subnav-list {
    padding: 0 18px;
  }

  .sub-tabs-list {
    padding: 0 18px;
  }

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

  .hero-title {
    font-size: 28px;
  }

  .hero-visual {
    order: 2;
  }

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

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

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

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

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

  .records-timeline .record-item {
    grid-template-columns: 96px minmax(0, 1fr);
  }

  .records-timeline .record-scope {
    grid-column: 2;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 36px 18px 24px;
  }

  .footer-copy {
    padding: 14px 18px;
  }

  .page-title {
    font-size: 28px;
  }
}

@media (max-width: 600px) {
  body.site-body {
    font-size: 15px;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding-left: 14px;
    padding-right: 14px;
    padding-bottom: 48px;
  }

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

  .topbar-text {
    padding: 10px 14px;
    font-size: 13px;
  }

  .subnav-list {
    padding: 0 14px;
  }

  .sub-tabs-list {
    padding: 0 14px;
  }

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

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

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

  .hero-actions .btn {
    width: 100%;
  }

  .page-header {
    padding: 10px 0 18px;
    margin-bottom: 24px;
  }

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

  .section,
  .channel-section,
  .special-section,
  .record-section,
  .guide-section,
  .records-timeline,
  .change-types,
  .change-query,
  .guide-fields,
  .guide-boundary,
  .guide-path,
  .guide-faq,
  .guide-next,
  .section-feedback-types,
  .section-feedback-content,
  .section-feedback-process,
  .section-feedback-links {
    margin-bottom: 40px;
  }

  .section-title,
  .section-head h2,
  .records-timeline h2,
  .change-types h2,
  .change-query h2,
  .guide-fields h2,
  .guide-boundary h2,
  .guide-path h2,
  .guide-faq h2,
  .guide-next h2 {
    font-size: 20px;
  }

  .record-groups,
  .index-grid,
  .choice-grid,
  .feedback-info-grid,
  .link-card-list,
  .guide-next-links,
  .query-grid,
  .process-list,
  .path-steps {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .diff-list dt {
    border-right: 0;
    border-bottom: 0;
    padding-bottom: 4px;
  }

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

  .guide-fields .field-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .guide-fields .field-row > span + span {
    border-left: 0;
    border-top: 1px solid var(--color-line);
  }

  .guide-fields .field-row > span {
    padding: 10px 14px;
  }

  .records-timeline .record-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .records-timeline .record-scope {
    grid-column: auto;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 14px 20px;
  }

  .footer-copy {
    padding: 14px;
    font-size: 12px;
  }

  .error-panel {
    padding: 26px 18px;
    margin: 32px auto;
  }

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

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

  .error-actions .btn {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   增强 · 滚动淡入与打印
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .reveal.is-visible {
    transform: none;
  }
}

@media print {
  .site-header,
  .site-nav,
  .nav-toggle,
  .topbar,
  .subnav,
  .sub-tabs,
  .breadcrumb,
  .hero-actions,
  .site-footer,
  .section-foot,
  .section-note,
  .guide-more,
  .relation-note,
  .process-footer,
  .guide-next {
    display: none;
  }

  body.site-body {
    color: #000000;
    background: #ffffff;
  }

  .home-main,
  .inner-main,
  .error-main {
    max-width: none;
    padding: 0;
  }

  .special-card,
  .choice-card,
  .index-card,
  .info-card,
  .query-card,
  .link-card-anchor,
  .process-step,
  .path-step,
  .record-group,
  .records-timeline .record-month,
  .faq-item,
  .boundary-col {
    box-shadow: none;
    page-break-inside: avoid;
  }
}