/* ==========================================================================
   樱花动漫在线 yierka.cn — 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* ==========================================================================
   base
   ========================================================================== */

:root {
  --c-text: #1f2126;
  --c-text-soft: #5c6270;
  --c-bg: #ffffff;
  --c-bg-soft: #f7f7f9;
  --c-accent: #c96a86;
  --c-line: #e4e5ea;
  --c-link: #a84d68;
  --c-accent-soft: #f7e9ee;
  --font-head: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --w-content: 1120px;
  --w-main: 720px;
  --w-aside: 300px;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 33, 38, 0.05);
  --shadow-hover: 0 6px 16px rgba(31, 33, 38, 0.1);
  --gap: 24px;
}

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

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

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.4;
}

h1 {
  font-size: 32px;
  line-height: 1.3;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
}

p {
  margin: 0 0 1em;
}

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

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

a {
  color: var(--c-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

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

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

dl {
  margin: 0;
}

dt,
dd {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
}

/* ==========================================================================
   layout — 全站骨架
   ========================================================================== */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 60;
  padding: 10px 16px;
  background: var(--c-text);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  flex: 0 0 auto;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--c-text);
  letter-spacing: 0;
}

.brand:hover {
  text-decoration: none;
  color: var(--c-link);
}

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

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

.nav-link {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--c-text-soft);
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: var(--c-link);
  background: var(--c-bg-soft);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--c-link);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--c-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
}

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

.nav-toggle::before {
  top: 15px;
  box-shadow: 0 6px 0 var(--c-text);
}

.nav-toggle::after {
  bottom: 15px;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.inner-main {
  padding-top: 20px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--c-text-soft);
  margin-bottom: 16px;
}

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

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

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

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

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

.page-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-text);
}

.page-description {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 820px;
}

.site-footer {
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-soft);
  font-size: 14px;
}

.footer-inner {
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 2fr;
  gap: 32px;
}

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

.footer-name {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.footer-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 24px;
}

.footer-group-title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-list a {
  font-size: 13px;
  color: var(--c-text-soft);
}

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

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

.footer-boundary,
.footer-copy {
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.footer-boundary {
  padding-top: 16px;
}

.footer-copy {
  padding-top: 0;
  padding-bottom: 20px;
}

/* ==========================================================================
   components — 通用区块
   ========================================================================== */

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

.section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-text);
}

.section-desc,
.section-intro,
.section-lead {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 860px;
}

.section-lead {
  margin-bottom: 20px;
}

.section-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--c-link);
}

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

.btn-ghost:hover {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}

/* 表格通用 */
.field-table,
.data-table {
  width: 100%;
  font-size: 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.field-table caption,
.data-table caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-size: 13px;
  color: var(--c-text-soft);
}

.field-table th,
.field-table td,
.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-line);
  line-height: 1.7;
}

.field-table thead th,
.data-table thead th {
  background: var(--c-bg-soft);
  font-weight: 600;
  font-size: 13px;
  color: var(--c-text);
}

.field-table tbody th,
.data-table tbody th {
  font-weight: 500;
  color: var(--c-text);
  width: 22%;
}

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

.table-wrap {
  overflow-x: auto;
}

/* ==========================================================================
   pages — 首页
   ========================================================================== */

.home-main {
  padding-top: 32px;
}

/* 首屏 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 40px;
  align-items: center;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-line);
}

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

.hero-eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-accent);
}

.hero-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-lead {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 520px;
}

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

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

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

/* 题材分类标签条 */
.tag-bar {
  padding: 28px 0;
  border-bottom: 1px solid var(--c-line);
}

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

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

.tag-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 16px;
  font-size: 14px;
  color: var(--c-text-soft);
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: 999px;
}

.tag-link:hover {
  color: var(--c-link);
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
  text-decoration: none;
}

/* 题材频道方向总览 */
.channel-overview {
  padding: 44px 0;
  border-bottom: 1px solid var(--c-line);
}

.channel-rows {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.channel-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1.4fr) minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: start;
}

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

.channel-tone,
.channel-audience,
.channel-sample {
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
  min-width: 0;
}

.channel-sample {
  color: var(--c-text);
}

/* 本期专题片单速览 */
.feature-picks {
  padding: 44px 0;
  border-bottom: 1px solid var(--c-line);
}

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

.pick-card {
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.pick-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.pick-media img {
  width: 100%;
  height: 168px;
  object-fit: cover;
  background: var(--c-bg-soft);
}

.pick-title {
  margin: 16px 16px 0;
  font-size: 17px;
  font-weight: 600;
}

.pick-scope,
.pick-channel {
  margin: 8px 16px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.pick-link {
  margin: 14px 16px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-link);
}

/* 最近更新与榜单并列区 */
.home-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  padding: 44px 0;
  border-bottom: 1px solid var(--c-line);
}

.recent-updates,
.hot-ranking {
  min-width: 0;
}

.update-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.update-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
}

.update-name {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--c-text);
  font-weight: 500;
}

.update-tag {
  flex: 0 0 auto;
  padding: 2px 10px;
  font-size: 12px;
  color: var(--c-link);
  background: var(--c-accent-soft);
  border-radius: 999px;
}

.update-status {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--c-text-soft);
}

.rank-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.rank-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1.2fr) minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
}

.rank-num {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--c-accent);
}

.rank-name {
  min-width: 0;
  color: var(--c-text);
  font-weight: 500;
}

.rank-tag {
  font-size: 12px;
  color: var(--c-text-soft);
}

.rank-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

/* 条目字段与收录边界摘要 */
.field-summary {
  padding: 44px 0;
  border-bottom: 1px solid var(--c-line);
}

/* 查阅路径三步概览 */
.path-overview {
  padding: 44px 0;
  border-bottom: 1px solid var(--c-line);
}

.path-steps {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.path-step {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}

.step-num {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--c-accent);
  line-height: 1.4;
}

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

.step-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
}

/* 站内更正反馈入口说明 */
.feedback-note {
  padding: 40px 0 8px;
}

.feedback-text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 820px;
}

/* ==========================================================================
   pages — 题材频道
   ========================================================================== */

.channel-section {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-line);
}

.channel-section > .section-title {
  margin-bottom: 8px;
}

.channel-section > .section-desc {
  margin-bottom: 28px;
}

.channel-section .channel-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--c-line);
  align-items: start;
}

.channel-section .channel-row:last-child {
  border-bottom: 1px solid var(--c-line);
}

.channel-cover img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

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

.channel-body .channel-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.channel-meta {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 6px 16px;
  margin-bottom: 14px;
  font-size: 14px;
}

.channel-meta dt {
  font-weight: 500;
  color: var(--c-text);
}

.channel-meta dd {
  color: var(--c-text-soft);
  line-height: 1.75;
  min-width: 0;
}

.channel-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-link);
}

.rule-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--c-line);
}

.rule-section > .section-title {
  margin-bottom: 8px;
}

.rule-section > .section-desc {
  margin-bottom: 24px;
}

.rule-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--gap);
}

.rule-item {
  padding: 18px 20px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  min-width: 0;
}

.rule-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

.relate-section {
  padding: 40px 0 8px;
}

.relate-section > .section-title {
  margin-bottom: 8px;
}

.relate-section > .section-desc {
  margin-bottom: 24px;
}

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

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

.relate-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.relate-col p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.relate-more {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 14px;
}

/* ==========================================================================
   pages — 专题片单
   ========================================================================== */

.feature-list {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-line);
}

.feature-list > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.feature-list > .section-intro {
  margin-bottom: 28px;
}

.feature-block {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--c-line);
  align-items: start;
}

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

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

.feature-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

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

.feature-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-meta {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 6px 16px;
  margin-bottom: 16px;
  font-size: 14px;
}

.feature-meta dt {
  font-weight: 500;
  color: var(--c-text);
}

.feature-meta dd {
  color: var(--c-text-soft);
  line-height: 1.75;
  min-width: 0;
}

.feature-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px 20px;
  margin-bottom: 14px;
}

.feature-items li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
  min-width: 0;
}

.feature-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
}

.feature-entry {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.feature-map {
  padding: 40px 0;
  border-bottom: 1px solid var(--c-line);
}

.feature-map > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.feature-map > .section-intro {
  margin-bottom: 24px;
}

.feature-order {
  padding: 40px 0 8px;
}

.feature-order > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.feature-order > .section-intro {
  margin-bottom: 24px;
}

.order-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.order-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
}

.order-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

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

/* ==========================================================================
   pages — 条目字段说明 / 查阅路径指引（主内容 + 侧栏）
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--w-aside);
  gap: 40px;
  align-items: start;
}

.section {
  padding-bottom: 36px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--c-line);
}

.section:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}

.section > .section-title {
  margin-bottom: 8px;
}

.section > .section-lead {
  margin-bottom: 20px;
}

/* 条目字段说明 */
.field-figure {
  margin-bottom: 24px;
}

.field-figure img {
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

.field-table-section .field-table tbody .field-name {
  font-weight: 600;
  color: var(--c-text);
  width: 22%;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

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

.boundary-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.boundary-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

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

.boundary-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

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

.missing-explain {
  margin-bottom: 20px;
}

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

.entry-sample {
  padding: 20px 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

.entry-sample-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
}

.entry-fields {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px 16px;
  font-size: 14px;
}

.entry-field-key {
  font-weight: 500;
  color: var(--c-text);
}

.entry-field-value {
  color: var(--c-text-soft);
  line-height: 1.75;
  min-width: 0;
}

/* 侧栏 */
.page-aside,
.layout-aside {
  min-width: 0;
}

.aside-block {
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-bg);
  margin-bottom: 20px;
}

.aside-block:last-child {
  margin-bottom: 0;
}

.aside-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

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

.aside-list li {
  min-width: 0;
}

.aside-list a,
.aside-item a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-link);
}

/* 查阅路径指引 */
.guide-figure {
  margin-bottom: 28px;
}

.guide-figure img {
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

.guide-steps,
.guide-faq,
.guide-feedback {
  padding-bottom: 36px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--c-line);
}

.guide-feedback {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.guide-steps > .section-title,
.guide-faq > .section-title,
.guide-feedback > .section-title {
  margin-bottom: 8px;
}

.guide-steps > .section-intro,
.guide-faq > .section-intro,
.guide-feedback > .section-intro {
  margin-bottom: 20px;
}

.step-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

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

.step-index {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-accent);
}

.guide-steps .step-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.guide-steps .step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
}

.faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

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

.faq-question {
  position: relative;
  padding: 14px 32px 14px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  line-height: 1;
  color: var(--c-accent);
}

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

.faq-answer {
  padding: 0 0 16px;
}

.faq-answer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
}

.feedback-block {
  padding: 20px 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}

.feedback-subtitle {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feedback-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.feedback-item {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.feedback-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
}

.feedback-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
}

.feedback-back {
  margin: 16px 0 0;
  font-size: 14px;
  font-weight: 500;
}

/* ==========================================================================
   pages — 404
   ========================================================================== */

.error-main {
  padding-top: 64px;
}

.error-hero {
  max-width: 640px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-line);
}

.error-code {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 40px;
  font-weight: 600;
  line-height: 1;
  color: var(--c-accent);
}

.error-hero h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-text {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-soft);
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  background: var(--c-accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
}

.error-home-link:hover {
  background: var(--c-link);
  text-decoration: none;
}

.error-paths {
  padding-top: 40px;
}

.error-paths h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.error-path-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.error-path-list a {
  display: block;
  padding: 14px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-bg-soft);
  font-size: 14px;
  color: var(--c-text);
}

.error-path-list a:hover {
  border-color: var(--c-accent);
  color: var(--c-link);
  text-decoration: none;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    gap: 32px;
  }

  .channel-row {
    grid-template-columns: 130px minmax(0, 1.3fr) minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 16px;
  }

  .home-columns {
    gap: 32px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 32px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    min-height: 60px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    flex: 0 0 auto;
    justify-content: flex-end;
  }

  .nav-list {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow-hover);
  }

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

  .nav-link {
    padding: 12px 8px;
    font-size: 15px;
    border-bottom: 1px solid var(--c-line);
    border-radius: 0;
  }

  .nav-link.is-current {
    box-shadow: inset 3px 0 0 var(--c-accent);
    padding-left: 14px;
  }

  .site-main {
    padding: 0 16px 48px;
  }

  .home-main {
    padding-top: 24px;
  }

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

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-bottom: 32px;
  }

  .hero-media img {
    height: 220px;
  }

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

  .channel-overview,
  .feature-picks,
  .field-summary,
  .path-overview {
    padding: 32px 0;
  }

  .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .channel-name {
    margin-bottom: 4px;
  }

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

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

  .rank-item {
    grid-template-columns: 28px minmax(0, 1fr) auto;
    row-gap: 4px;
  }

  .rank-note {
    grid-column: 2 / -1;
  }

  .channel-section .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .channel-cover img {
    height: 170px;
  }

  .channel-meta,
  .feature-meta {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 4px 12px;
  }

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

  .feature-block {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .feature-media img {
    height: 190px;
  }

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

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

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

  .entry-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px 0;
  }

  .entry-field-key {
    margin-top: 8px;
  }

  .footer-inner {
    padding: 32px 16px 24px;
  }

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

  .footer-boundary,
  .footer-copy {
    padding-left: 16px;
    padding-right: 16px;
  }

  .error-main {
    padding-top: 40px;
  }
}

@media (max-width: 480px) {
  h1,
  .page-title,
  .hero-title {
    font-size: 23px;
  }

  .section-title,
  h2 {
    font-size: 19px;
  }

  .hero-media img {
    height: 180px;
  }

  .update-item {
    flex-wrap: wrap;
    gap: 6px 10px;
  }

  .update-name {
    flex: 1 1 100%;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .field-table,
  .data-table {
    font-size: 13px;
  }

  .field-table th,
  .field-table td,
  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }

  .feedback-block,
  .entry-sample {
    padding: 16px;
  }
}

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

  .pick-card,
  .skip-link,
  .btn {
    transition: none;
  }
}