/* ==========================================================================
   午夜激情影院 · 全站样式表
   组织顺序：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base 基础层
   -------------------------------------------------------------------------- */

:root {
  --color-primary: #1e3a5f;
  --color-primary-deep: #16293f;
  --color-accent: #e8722a;
  --color-accent-soft: #fbe6d6;
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-border: #dde3ea;
  --color-text: #2c3e50;
  --color-muted: #6b7c93;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 2px rgba(30, 58, 95, 0.06);
  --shadow-lift: 0 8px 20px rgba(30, 58, 95, 0.12);
  --shell-width: 1120px;
  --shell-pad: 24px;
}

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  font-weight: 400;
}

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

p {
  margin: 0;
}

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

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

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

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

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

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

time {
  font-style: normal;
}

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

/* 跳转链接：仅在获得焦点时出现 */
.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 60;
  padding: 10px 16px;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: 14px;
}

.skip-link:focus {
  top: 0;
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   layout 骨架层
   -------------------------------------------------------------------------- */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.7;
}

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

.header-inner {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--shell-pad);
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand:hover,
.brand:focus-visible {
  color: #ffffff;
}

.brand-mark {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background-color: var(--color-accent);
  flex: none;
}

.brand-name {
  line-height: 1.2;
}

.site-nav {
  display: block;
}

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

.nav-item {
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 10px 14px;
  color: #dbe4ef;
  font-size: 15px;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

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

.nav-link.is-current {
  color: #ffffff;
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

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

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.inner-main {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--shell-pad) 56px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

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

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

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

.breadcrumb-current {
  color: var(--color-primary);
  font-weight: 600;
}

.page-header {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 28px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

.page-description {
  margin-top: 10px;
  max-width: 820px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

.site-footer {
  background-color: var(--color-primary);
  color: #c7d3e1;
  margin-top: auto;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 44px var(--shell-pad) 32px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 2.4fr;
  gap: 40px;
}

.footer-brand-name {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
}

.footer-brand-desc {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: #a9b8ca;
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.footer-title {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-link {
  color: #a9b8ca;
  font-size: 14px;
  line-height: 1.6;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-bottom {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 18px var(--shell-pad) 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-copy {
  font-size: 13px;
  color: #93a5ba;
}

.back-to-top {
  font-size: 13px;
  color: #c7d3e1;
  padding: 6px 2px;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   components 通用组件层
   -------------------------------------------------------------------------- */

.section {
  padding: 40px 0 0;
}

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

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

.section-desc {
  margin-top: 8px;
  max-width: 860px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

.section-lead {
  margin-top: 8px;
  max-width: 860px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

.section-intro {
  margin-top: 8px;
  max-width: 860px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

.section-foot {
  margin-top: 18px;
  font-size: 15px;
}

.section-note {
  margin-top: 16px;
  font-size: 15px;
  color: var(--color-muted);
}

.subsection-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 22px 0 8px;
}

.subsection-title:first-child {
  margin-top: 0;
}

.text-link {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 600;
  padding: 2px 0;
  border-bottom: 1px solid rgba(232, 114, 42, 0.35);
}

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

.text-link + .text-link {
  margin-left: 18px;
}

.inline-link {
  color: var(--color-accent);
  border-bottom: 1px solid rgba(232, 114, 42, 0.35);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, transform 0.18s ease;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #cf6120;
  color: #ffffff;
}

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

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

/* 数据表格 */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.data-table {
  min-width: 100%;
  font-size: 14px;
}

.table-caption {
  caption-side: top;
  padding: 16px 18px 0;
  text-align: left;
  font-size: 13px;
  color: var(--color-muted);
}

.data-table thead th {
  background-color: #eef2f7;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table tbody th,
.data-table tbody td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  line-height: 1.65;
}

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

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

.data-table tbody tr:hover {
  background-color: #f7f9fc;
}

/* 专题卡片 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

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

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

.topic-media,
.topic-cover {
  margin: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #e9eef5;
  overflow: hidden;
}

.topic-media img,
.topic-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.topic-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 auto;
}

.topic-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}

.topic-direction {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.topic-meta {
  margin: 0;
  font-size: 13px;
  color: var(--color-muted);
}

.topic-meta dt {
  display: inline;
  font-weight: 600;
  color: var(--color-primary);
}

.topic-meta dd {
  display: inline;
  margin: 0 12px 0 4px;
}

.topic-meta dd:last-child {
  margin-right: 0;
}

.card-link,
.topic-enter {
  margin-top: auto;
  align-self: flex-start;
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: 1px solid rgba(232, 114, 42, 0.35);
}

.card-link:hover,
.card-link:focus-visible,
.topic-enter:hover,
.topic-enter:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 步骤条 */
.step-row,
.step-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.step-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow-card);
}

.step-num,
.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 12px;
  border-radius: 50%;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 700;
}

.step-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

.step-result {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.65;
  padding-top: 10px;
  border-top: 1px dashed var(--color-border);
}

/* 图片容器 */
.media-figure,
.method-figure,
.lookup-figure {
  margin: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.media-figure img,
.method-figure img,
.lookup-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.media-caption,
.method-figure figcaption,
.figure-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.65;
  border-top: 1px solid var(--color-border);
}

/* FAQ 折叠 */
.faq-group {
  margin-bottom: 26px;
}

.faq-group-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item[open] {
  border-color: #c9d5e3;
}

.faq-question {
  display: block;
  padding: 15px 46px 15px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  position: relative;
  line-height: 1.6;
}

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

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

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

.faq-question:hover {
  color: var(--color-accent);
}

.faq-answer {
  padding: 0 18px 16px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.75;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

/* --------------------------------------------------------------------------
   pages 页面层
   -------------------------------------------------------------------------- */

/* ---------- 首页 ---------- */

.topbar {
  background-color: var(--color-primary-deep);
}

.topbar-text {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 9px var(--shell-pad);
  font-size: 13px;
  color: #b8c6d8;
  line-height: 1.6;
}

.home-main {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--shell-pad) 56px;
}

.hero-section {
  padding: 36px 0 8px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
}

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

.hero-eyebrow {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 14px;
  background-color: var(--color-accent-soft);
  color: #b0500f;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary);
}

.hero-lead {
  margin-top: 14px;
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.75;
}

.hero-points {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.hero-point {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
}

.hero-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

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

.hero-media {
  margin: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

/* 首页频道表 */
.section-channel .table-wrap {
  margin-top: 4px;
}

/* 首页整理记录速览 */
.record-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.record-group {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 20px 8px;
  box-shadow: var(--shadow-card);
}

.record-month {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

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

.record-item {
  padding: 13px 0;
  border-bottom: 1px dashed var(--color-border);
}

.record-item:last-child {
  border-bottom: 0;
}

.record-date {
  display: inline-block;
  font-size: 13px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.record-target {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  background-color: #eef2f7;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
}

.record-summary {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

/* 首页浏览指引与收录边界 */
.brief-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.brief-col {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 24px 22px;
  box-shadow: var(--shadow-card);
}

.brief-col-boundary {
  background-color: #fbfcfd;
}

.brief-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.brief-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-bottom: 18px;
}

.brief-item {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.75;
}

.brief-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
}

/* 首页站内页面索引 */
.index-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.index-col {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  box-shadow: var(--shadow-card);
}

.index-name {
  font-size: 17px;
  font-weight: 600;
}

.index-link {
  color: var(--color-primary);
}

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

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

/* ---------- 频道分类页 ---------- */

.page-channel .layout-shell {
  display: block;
}

.section-channel-table {
  padding-top: 4px;
}

.section-channel-table .table-wrap {
  margin-top: 4px;
}

.section-channel-method {
  padding-top: 40px;
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 4px;
}

.method-text {
  min-width: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.method-text p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

.method-figure {
  min-width: 0;
}

.section-fields-boundary {
  padding-top: 40px;
}

.two-column-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 4px;
}

.column {
  min-width: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.column-boundary {
  background-color: #fbfcfd;
}

.column-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.field-list {
  margin: 0;
}

.field-list dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 14px;
}

.field-list dt:first-child {
  margin-top: 0;
}

.field-list dd {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.75;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.boundary-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.75;
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

.boundary-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* ---------- 专题合辑页 ---------- */

.page-topic .topic-list-section {
  padding-top: 4px;
}

.topic-list-section .topic-grid {
  margin-top: 20px;
}

.topic-pick-section {
  padding-top: 40px;
}

.topic-pick-text {
  margin-top: 14px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.topic-pick-text p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
}

.topic-pick-text p + p {
  margin-top: 12px;
}

.topic-order-section {
  padding-top: 40px;
}

.topic-order-section .step-row {
  margin-top: 20px;
}

/* ---------- 浏览指引页 ---------- */

.top-bar {
  background-color: var(--color-primary-deep);
}

.top-bar-text {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 9px var(--shell-pad);
  font-size: 13px;
  color: #b8c6d8;
  line-height: 1.6;
}

.guide-section {
  padding-top: 40px;
}

.guide-section:first-of-type {
  padding-top: 4px;
}

.guide-section .step-track {
  margin-top: 20px;
}

.prepare-figure {
  margin: 20px 0 0;
}

.prepare-list {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.prepare-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow-card);
}

.prepare-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.prepare-task {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1.65;
  margin-bottom: 8px;
}

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

.guide-section .faq-group:last-child {
  margin-bottom: 0;
}

.guide-next {
  padding-bottom: 8px;
}

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

.next-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.next-title {
  font-size: 17px;
  font-weight: 600;
}

.next-title a {
  color: var(--color-primary);
}

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

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

/* ---------- 整理记录页 ---------- */

.record-section {
  padding-top: 4px;
}

.record-month {
  margin-top: 26px;
}

.record-month-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: 4px;
}

.record-section .record-list {
  display: flex;
  flex-direction: column;
}

.record-section .record-item {
  padding: 16px 0;
  border-bottom: 1px dashed var(--color-border);
}

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

.record-section .record-date {
  display: inline-block;
  font-size: 13px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.record-section .record-target {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  background-color: #eef2f7;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
}

.record-section .record-summary {
  margin-top: 6px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

.fields-section {
  padding-top: 40px;
}

.fields-layout {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.fields-table-wrap {
  min-width: 0;
  overflow-x: auto;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.fields-table {
  min-width: 100%;
  font-size: 14px;
}

.fields-caption {
  caption-side: top;
  padding: 16px 18px 0;
  text-align: left;
  font-size: 13px;
  color: var(--color-muted);
}

.fields-table thead th {
  background-color: #eef2f7;
  color: var(--color-primary);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.fields-table tbody th,
.fields-table tbody td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  line-height: 1.65;
}

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

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

.fields-table tbody tr:hover {
  background-color: #f7f9fc;
}

.fields-aside {
  min-width: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.aside-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

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

.aside-list {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.aside-item {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.75;
}

.aside-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
}

.lookup-section {
  padding-top: 40px;
}

.lookup-layout {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.lookup-main {
  min-width: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.lookup-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
}

.lookup-text + .subsection-title {
  margin-top: 22px;
}

.lookup-figure {
  min-width: 0;
}

/* ---------- 404 页 ---------- */

.site-error .site-main {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.error-main {
  width: 100%;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--shell-pad) 56px;
}

.error-hero {
  padding: 56px 0 12px;
}

.error-inner {
  max-width: 720px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 32px 32px 34px;
  box-shadow: var(--shadow-card);
}

.error-code {
  font-size: 44px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.error-title {
  margin-top: 14px;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

.error-text {
  margin-top: 10px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

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

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

.error-link-list {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.error-link-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.error-link-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.error-link {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

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

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

/* --------------------------------------------------------------------------
   responsive 响应式层
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 28px;
  }

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

  .step-row,
  .step-track,
  .prepare-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  :root {
    --shell-pad: 16px;
  }

  /* 页头与移动导航 */
  .header-inner {
    min-height: 58px;
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: block;
    width: 100%;
    flex-basis: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 6px 0 10px;
  }

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

  .nav-link {
    display: block;
    padding: 12px 10px;
    min-height: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0;
  }

  .nav-link.is-current {
    border-bottom-color: var(--color-accent);
  }

  /* 骨架 */
  .inner-main,
  .home-main,
  .error-main {
    padding-bottom: 40px;
  }

  .page-header {
    padding: 16px 0 18px;
    margin-bottom: 22px;
  }

  .page-title {
    font-size: 22px;
  }

  .page-description {
    font-size: 14px;
  }

  .section,
  .guide-section,
  .fields-section,
  .lookup-section,
  .topic-pick-section,
  .topic-order-section,
  .section-channel-method,
  .section-fields-boundary,
  .error-links {
    padding-top: 30px;
  }

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

  /* 首页首屏 */
  .hero-section {
    padding: 24px 0 4px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

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

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

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  /* 卡片与模块降为单列 */
  .topic-grid,
  .record-groups,
  .brief-columns,
  .two-column-layout,
  .method-layout,
  .fields-layout,
  .lookup-layout,
  .next-grid,
  .step-row,
  .step-track,
  .prepare-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .method-text,
  .column,
  .brief-col,
  .topic-pick-text,
  .lookup-main,
  .fields-aside {
    padding: 20px 18px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 34px var(--shell-pad) 26px;
  }

  .footer-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 18px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .back-to-top {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* 404 */
  .error-hero {
    padding: 34px 0 8px;
  }

  .error-inner {
    padding: 24px 20px 26px;
  }

  .error-code {
    font-size: 34px;
  }

  .error-title {
    font-size: 22px;
  }

  .error-actions .btn {
    flex: 1 1 auto;
  }
}

@media (max-width: 480px) {
  .index-grid,
  .error-link-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-title {
    font-size: 22px;
  }

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

  .data-table thead th,
  .data-table tbody th,
  .data-table tbody td,
  .fields-table thead th,
  .fields-table tbody th,
  .fields-table tbody td {
    padding: 11px 12px;
  }

  .topic-meta dd {
    display: block;
    margin: 2px 0 0;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .topic-card,
  .next-card,
  .error-link-item,
  .btn {
    transition: none;
  }

  .topic-card:hover,
  .next-card:hover,
  .error-link-item:hover {
    transform: none;
  }
}