/* ==========================================================================
   神马午夜影院 — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base — 变量、重置、排版基准
   -------------------------------------------------------------------------- */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f4f6f2;
  --color-green: #2f5d46;
  --color-green-deep: #24483a;
  --color-ochre: #a86a3d;
  --color-mist: #4a6f8a;
  --color-amber: #d9a441;
  --color-ink: #1f2a24;
  --color-muted: #5a6b5f;
  --color-line: #dbe2d8;
  --color-line-soft: #e8ece5;

  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;

  --wrap: 1180px;
  --wrap-pad: 24px;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 42, 36, 0.06), 0 6px 16px rgba(31, 42, 36, 0.05);
  --header-h: 68px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 4px);
}

body.site-body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-green);
}

p {
  margin: 0;
}

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

a {
  color: var(--color-mist);
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-amber);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

figure {
  margin: 0;
}

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

time {
  font-family: var(--font-mono);
}

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

/* --------------------------------------------------------------------------
   layout — 页头、导航、主容器、面包屑、页脚
   -------------------------------------------------------------------------- */

.site-notice {
  margin: 0;
  padding: 9px var(--wrap-pad);
  background: var(--color-green);
  color: #eef3ec;
  font-size: 13.5px;
  line-height: 1.5;
  text-align: center;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--wrap);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 10px var(--wrap-pad);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--color-green);
}

.brand:hover {
  color: var(--color-green-deep);
}

.brand-mark {
  display: inline-block;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border: 2px solid var(--color-green);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(to right, transparent 46%, var(--color-ochre) 46%, var(--color-ochre) 54%, transparent 54%),
    linear-gradient(to bottom, transparent 46%, var(--color-ochre) 46%, var(--color-ochre) 54%, transparent 54%);
}

.brand-text {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle::before {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--color-green);
  box-shadow: 0 -6px 0 var(--color-green), 0 6px 0 var(--color-green);
}

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

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

.nav-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  color: var(--color-ink);
  font-size: 15.5px;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

.nav-list > li > a:hover {
  color: var(--color-green);
  background: var(--color-bg-soft);
}

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

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

.inner-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--wrap-pad) 64px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

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

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

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

.page-header {
  padding: 18px 0 26px;
  border-bottom: 1px solid var(--color-line-soft);
}

.page-title {
  font-size: 34px;
  font-weight: 600;
  color: var(--color-green);
}

.page-description {
  max-width: 820px;
  margin-top: 12px;
  font-size: 16px;
  color: var(--color-muted);
}

.page-description a {
  color: var(--color-mist);
  border-bottom: 1px solid var(--color-line);
}

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

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(4, minmax(140px, 1fr));
  gap: 28px 24px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px var(--wrap-pad) 26px;
}

.footer-brand-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-green);
}

.footer-brand-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

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

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

.footer-col a,
.footer-col li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.footer-col a:hover {
  color: var(--color-green);
}

.footer-copy {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px var(--wrap-pad) 26px;
  border-top: 1px solid var(--color-line);
  font-size: 13.5px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   components — 通用按钮、区块头、卡片、表格、列表
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-size: 15.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

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

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

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

.btn-ghost:hover {
  background: var(--color-green);
  color: #ffffff;
}

.section {
  padding: 52px 0;
}

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

.section-head {
  margin-bottom: 26px;
}

.section-title {
  font-size: 24px;
  color: var(--color-green);
}

.section-lead,
.section-desc,
.section-intro {
  max-width: 860px;
  margin-top: 10px;
  font-size: 15.5px;
  color: var(--color-muted);
}

.section-intro a {
  color: var(--color-mist);
  border-bottom: 1px solid var(--color-line);
}

.section-more {
  margin-top: 22px;
  font-size: 15px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-ochre);
  font-weight: 600;
}

.link-more::after {
  content: "→";
  font-size: 15px;
}

.link-more:hover {
  color: var(--color-green);
}

.card-media,
.collection-media,
.channel-figure,
.records-figure,
.backstage-media,
.hero-media {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-line-soft);
}

.card-media img,
.collection-media img,
.channel-figure img,
.records-figure img,
.backstage-media img,
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.channel-table {
  font-size: 15px;
}

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

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

.channel-table thead th {
  background: var(--color-bg-soft);
  color: var(--color-green);
  font-weight: 600;
  border-bottom: 1px solid var(--color-line);
}

.channel-table tbody tr:hover {
  background: #fafbf8;
}

.channel-table .cell-code {
  width: 88px;
  font-family: var(--font-mono);
  color: var(--color-ochre);
}

.channel-table .cell-name {
  width: 180px;
  font-weight: 600;
}

.channel-table .cell-name a {
  color: var(--color-green);
}

.guide-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line-soft);
}

.guide-item summary {
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-green);
  min-height: 32px;
}

.guide-item p {
  margin-top: 10px;
  max-width: 860px;
  font-size: 15.5px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages — 首页
   -------------------------------------------------------------------------- */

.home-main {
  display: block;
}

.hero-section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px var(--wrap-pad) 48px;
}

.hero-columns {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(300px, 460px);
  gap: 44px;
  align-items: start;
}

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

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 10px;
  background: var(--color-bg-soft);
  border-left: 3px solid var(--color-ochre);
  font-size: 13.5px;
  color: var(--color-muted);
}

.hero-title {
  font-size: 34px;
  color: var(--color-green);
}

.hero-desc {
  margin-top: 16px;
  max-width: 620px;
  font-size: 16px;
  color: var(--color-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-media {
  margin: 0;
}

.hero-media img {
  aspect-ratio: 4 / 3;
}

.hero-media figcaption {
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--color-muted);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line-soft);
}

.channels-overview,
.collections-entry,
.creators-entry,
.records-entry,
.site-index {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--wrap-pad);
  padding-right: var(--wrap-pad);
}

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

.channel-row {
  display: grid;
  grid-template-columns: 64px minmax(220px, 1fr) 150px;
  gap: 18px;
  align-items: start;
  padding: 16px 4px;
  border-bottom: 1px solid var(--color-line-soft);
}

.channel-row:hover {
  background: #fafbf8;
}

.channel-no {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-ochre);
  padding-top: 2px;
}

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

.channel-name {
  font-size: 18px;
}

.channel-name a {
  color: var(--color-green);
}

.channel-name a:hover {
  color: var(--color-ochre);
}

.channel-desc {
  margin-top: 6px;
  font-size: 15px;
  color: var(--color-muted);
}

.channel-count {
  font-size: 14px;
  color: var(--color-muted);
  text-align: right;
  padding-top: 3px;
}

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

.collection-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
}

.collection-card:hover {
  border-color: var(--color-green);
  box-shadow: var(--shadow-card);
}

.collection-card .card-media {
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid var(--color-line-soft);
}

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

.collection-card .card-title {
  padding: 16px 18px 0;
  font-size: 18px;
}

.collection-card .card-title a {
  color: var(--color-green);
}

.collection-card .card-desc {
  padding: 8px 18px 18px;
  font-size: 15px;
  color: var(--color-muted);
}

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

.creator-group {
  min-width: 0;
  padding: 18px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-amber);
}

.creator-group .creator-name {
  font-size: 18px;
}

.creator-group .creator-name a {
  color: var(--color-green);
}

.creator-group .creator-desc {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--color-muted);
}

.creator-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--color-line);
}

.creator-items li a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--color-mist);
  border-bottom: 1px solid transparent;
}

.creator-items li a:hover {
  color: var(--color-green);
  border-bottom-color: var(--color-green);
}

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

.record-month {
  min-width: 0;
}

.record-month-title {
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 2px solid var(--color-green);
  font-size: 16px;
  font-family: var(--font-mono);
  color: var(--color-green);
}

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

.record-item {
  display: grid;
  grid-template-columns: 84px 68px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--color-muted);
}

.record-item .record-date,
.record-item time {
  font-family: var(--font-mono);
  color: var(--color-ochre);
}

.record-item .record-type {
  display: inline-block;
  padding: 1px 7px;
  font-size: 12.5px;
  color: var(--color-green);
  background: #e7efe8;
  border-radius: var(--radius-sm);
  text-align: center;
}

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

.index-cell {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-green);
  border-radius: var(--radius);
}

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

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

.index-name a {
  color: var(--color-green);
}

.index-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages — 题材频道
   -------------------------------------------------------------------------- */

.channel-overview,
.channel-scope,
.channel-samples,
.channel-guide {
  padding: 40px 0;
}

.channel-overview {
  padding-top: 34px;
}

.channel-overview h2,
.channel-scope h2,
.channel-samples h2,
.channel-guide h2 {
  font-size: 24px;
}

.channel-overview .section-intro,
.channel-scope .section-intro,
.channel-samples .section-intro,
.channel-guide .section-intro {
  margin-bottom: 22px;
}

.scope-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line-soft);
}

.scope-item h3 {
  font-size: 18px;
  color: var(--color-green);
}

.scope-item p {
  margin-top: 8px;
  max-width: 860px;
  font-size: 15.5px;
  color: var(--color-muted);
}

.channel-figure {
  margin-bottom: 24px;
}

.channel-figure img {
  width: 100%;
  aspect-ratio: 21 / 9;
}

.channel-figure figcaption {
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--color-muted);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line-soft);
}

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

.sample-item {
  min-width: 0;
  padding: 16px 18px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
}

.sample-item h3 {
  font-size: 17px;
  color: var(--color-green);
}

.sample-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.sample-list li {
  padding-left: 14px;
  position: relative;
  font-size: 14.5px;
  color: var(--color-muted);
}

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

/* --------------------------------------------------------------------------
   pages — 专题片单
   -------------------------------------------------------------------------- */

.section-collections,
.section-ideas,
.section-scope {
  padding: 40px 0;
}

.section-collections {
  padding-top: 34px;
}

.section-collections .section-head h2,
.section-ideas .section-head h2,
.section-scope .section-head h2 {
  font-size: 24px;
}

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

.collection-grid .collection-card {
  border: 1px solid var(--color-line);
}

.collection-grid .collection-media {
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid var(--color-line-soft);
}

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

.collection-caption {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--color-muted);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line-soft);
}

.collection-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px 18px;
}

.collection-name {
  font-size: 18px;
  color: var(--color-green);
}

.collection-note {
  font-size: 15px;
  color: var(--color-muted);
}

.collection-link {
  align-self: flex-start;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-ochre);
  border-bottom: 1px solid var(--color-amber);
}

.collection-link:hover {
  color: var(--color-green);
  border-bottom-color: var(--color-green);
}

.idea-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 26px;
}

.idea-item {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-mist);
  border-radius: var(--radius);
}

.idea-item h3 {
  font-size: 17px;
  color: var(--color-green);
}

.idea-text {
  margin-top: 8px;
  font-size: 15px;
  color: var(--color-muted);
}

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

.scope-block {
  min-width: 0;
  padding: 18px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
}

.scope-name {
  font-size: 17px;
  color: var(--color-green);
}

.scope-range {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--color-muted);
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--color-line);
}

.entry-item {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 14.5px;
}

.entry-title {
  font-weight: 600;
  color: var(--color-ink);
}

.entry-desc {
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages — 创作者
   -------------------------------------------------------------------------- */

.creators-index,
.backstage,
.attribution {
  padding: 40px 0;
}

.creators-index {
  padding-top: 34px;
}

.creators-index h2,
.backstage h2,
.attribution h2 {
  font-size: 24px;
}

.creators-index .section-intro,
.backstage .section-intro {
  margin-bottom: 22px;
}

.creator-block {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-soft);
}

.creator-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.creator-head .creator-name {
  font-size: 19px;
  color: var(--color-green);
}

.creator-meta {
  font-size: 14px;
  color: var(--color-muted);
}

.credit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.credit-list li {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(120px, 0.7fr) 120px;
  gap: 12px;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: 14.5px;
}

.credit-title {
  color: var(--color-ink);
  font-weight: 600;
}

.credit-tag {
  display: inline-block;
  justify-self: start;
  padding: 1px 8px;
  font-size: 12.5px;
  color: var(--color-green);
  background: #e7efe8;
  border-radius: var(--radius-sm);
}

.credit-date {
  font-family: var(--font-mono);
  color: var(--color-ochre);
  text-align: right;
}

.backstage-media {
  margin-bottom: 24px;
}

.backstage-media img {
  width: 100%;
  aspect-ratio: 21 / 9;
}

.backstage-media figcaption {
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--color-muted);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line-soft);
}

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

.backstage-item {
  min-width: 0;
  padding: 16px 18px;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-amber);
  border-radius: var(--radius);
}

.backstage-item h3 {
  font-size: 17px;
  color: var(--color-green);
}

.backstage-item p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--color-muted);
}

.attribution > p {
  max-width: 860px;
  font-size: 15.5px;
  color: var(--color-muted);
}

.attribution-rules {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 18px 0;
}

.attribution-rules li {
  padding-left: 16px;
  position: relative;
  font-size: 15px;
  color: var(--color-muted);
}

.attribution-rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  background: var(--color-green);
  border-radius: 2px;
}

.attribution-note {
  font-size: 14.5px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages — 整理记录
   -------------------------------------------------------------------------- */

.records-timeline,
.records-rules,
.records-scope {
  padding: 40px 0;
}

.records-timeline {
  padding-top: 34px;
}

.records-timeline h2,
.records-rules h2,
.records-scope h2 {
  font-size: 24px;
}

.records-timeline .section-intro,
.records-rules .section-intro,
.records-scope .section-intro {
  margin-bottom: 22px;
}

.records-timeline .record-month {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-soft);
}

.records-timeline .record-month-title {
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--color-green);
  font-size: 17px;
  font-family: var(--font-mono);
  color: var(--color-green);
}

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

.records-timeline .record-item {
  display: grid;
  grid-template-columns: 96px 76px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.records-timeline .record-date {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-ochre);
}

.records-timeline .record-type {
  display: inline-block;
  justify-self: start;
  padding: 1px 8px;
  font-size: 12.5px;
  color: var(--color-green);
  background: #e7efe8;
  border-radius: var(--radius-sm);
}

.records-timeline .record-text {
  font-size: 15px;
  color: var(--color-muted);
}

.records-figure {
  margin-top: 26px;
}

.records-figure img {
  width: 100%;
  aspect-ratio: 21 / 9;
}

.records-figure figcaption {
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--color-muted);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line-soft);
}

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

.rule-card {
  min-width: 0;
  padding: 18px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-mist);
}

.rule-card h3 {
  font-size: 17px;
  color: var(--color-green);
}

.rule-card p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--color-muted);
}

.rules-note {
  margin-top: 20px;
  font-size: 14.5px;
  color: var(--color-muted);
}

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

.records-scope .scope-item {
  padding: 16px 18px;
  background: var(--color-bg-soft);
  border: 0;
  border-top: 3px solid var(--color-green);
  border-radius: var(--radius);
}

.records-scope .scope-item h3 {
  font-size: 17px;
}

.records-scope .scope-item p {
  margin-top: 8px;
  font-size: 14.5px;
}

.records-back {
  margin-top: 22px;
  font-size: 15px;
}

.records-back a {
  color: var(--color-mist);
  border-bottom: 1px solid var(--color-line);
}

.records-back a + a {
  margin-left: 14px;
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 56px var(--wrap-pad) 64px;
}

.error-panel {
  max-width: 720px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-ochre);
}

.error-panel h1 {
  margin-top: 10px;
  font-size: 34px;
  color: var(--color-green);
}

.error-lead {
  margin-top: 14px;
  font-size: 16px;
  color: var(--color-muted);
}

.error-lead + .error-lead {
  margin-top: 8px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.error-hints {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--color-line-soft);
}

.error-hints h2 {
  font-size: 20px;
}

.error-hint-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.error-hint-list li a {
  display: block;
  min-height: 44px;
  padding: 12px 16px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-green);
  font-size: 15px;
  color: var(--color-green);
}

.error-hint-list li a:hover {
  border-left-color: var(--color-ochre);
  color: var(--color-ochre);
}

/* --------------------------------------------------------------------------
   responsive — 960px 与 640px 两档
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  :root {
    --wrap-pad: 20px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    flex: 0 0 auto;
  }

  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--wrap-pad) 16px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 12px 20px rgba(31, 42, 36, 0.08);
  }

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

  .nav-list > li > a {
    width: 100%;
    padding: 0 8px;
    border-bottom: 1px solid var(--color-line-soft);
    border-radius: 0;
  }

  .header-inner {
    position: relative;
  }

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

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

  .channel-row {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
  }

  .channel-count {
    grid-column: 2 / -1;
    text-align: left;
    padding-top: 0;
  }

  .collection-cards,
  .collection-grid,
  .idea-list,
  .scope-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .creator-groups,
  .record-groups,
  .sample-grid,
  .backstage-grid,
  .rules-grid,
  .records-scope .scope-list,
  .error-hint-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (max-width: 640px) {
  :root {
    --wrap-pad: 16px;
    --header-h: 60px;
  }

  body.site-body {
    font-size: 15.5px;
  }

  .site-notice {
    font-size: 13px;
    text-align: left;
  }

  .brand-text {
    font-size: 16.5px;
  }

  .page-title,
  .hero-title,
  .error-panel h1 {
    font-size: 26px;
  }

  .section-title,
  .channel-overview h2,
  .channel-scope h2,
  .channel-samples h2,
  .channel-guide h2,
  .section-collections .section-head h2,
  .section-ideas .section-head h2,
  .section-scope .section-head h2,
  .creators-index h2,
  .backstage h2,
  .attribution h2,
  .records-timeline h2,
  .records-rules h2,
  .records-scope h2 {
    font-size: 20px;
  }

  .section {
    padding: 36px 0;
  }

  .hero-section {
    padding: 28px var(--wrap-pad) 34px;
  }

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

  .channel-count {
    grid-column: auto;
  }

  .creator-groups,
  .record-groups,
  .sample-grid,
  .backstage-grid,
  .rules-grid,
  .records-scope .scope-list,
  .error-hint-list,
  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .record-item {
    grid-template-columns: 76px minmax(0, 1fr);
  }

  .record-item .record-type {
    grid-column: 2 / -1;
    justify-self: start;
  }

  .records-timeline .record-item {
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .records-timeline .record-type {
    grid-column: 2 / -1;
    justify-self: start;
  }

  .credit-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .credit-tag,
  .credit-date {
    justify-self: start;
    text-align: left;
  }

  .channel-table th,
  .channel-table td {
    padding: 10px 8px;
    font-size: 14.5px;
  }

  .channel-table .cell-code,
  .channel-table .cell-name {
    width: auto;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding: 30px var(--wrap-pad) 20px;
  }

  .hero-actions .btn,
  .error-actions .btn {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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