/* =========================================================
   贝勒漫画 t2ns7.cn — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================= */

/* ---------------------------------------------------------
   1. base —— 变量、重置、排版、通用元素
   --------------------------------------------------------- */
:root {
  --c-primary: #1F6F8B;
  --c-primary-dark: #175A72;
  --c-primary-soft: #E4F0F4;
  --c-accent: #E8A33D;
  --c-accent-soft: #FBF0DC;
  --c-bg: #F7F9FA;
  --c-card: #FFFFFF;
  --c-text: #22313A;
  --c-text-soft: #5C6B73;
  --c-line: #DCE4E8;
  --c-line-strong: #C3D0D6;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(34, 49, 58, 0.06);
  --shadow-hover: 0 4px 12px rgba(31, 111, 139, 0.14);
  --w-main: 1180px;
  --gap: 24px;
  --section-gap: 48px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

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

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

body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin: 0;
}

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

dl,
dd,
dt {
  margin: 0;
}

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

a:hover {
  color: var(--c-primary-dark);
}

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

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

figure {
  margin: 0;
}

figcaption {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-text-soft);
  margin-top: 8px;
}

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

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

.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;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 60;
  padding: 10px 16px;
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
  color: #fff;
}


/* ---------------------------------------------------------
   2. layout —— 页头 / 导航 / 主容器 / 面包屑 / 页标题 / 页脚
   --------------------------------------------------------- */

/* 2.1 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--c-card);
  border-bottom: 1px solid var(--c-line);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-text);
  font-weight: 600;
  flex-shrink: 0;
}

.brand:hover {
  color: var(--c-primary);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--c-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0;
}

.brand-sub {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

/* 2.2 导航 */
.site-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
  line-height: 1.5;
}

.nav-list a:hover {
  color: var(--c-primary);
  background: var(--c-primary-soft);
}

.nav-list a.is-current {
  color: var(--c-primary);
  font-weight: 600;
  border-bottom-color: var(--c-primary);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-text);
  border-radius: 1px;
}

/* 2.3 主容器 */
.site-main {
  display: block;
  width: 100%;
}

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

/* 2.4 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 4px;
  font-size: 14px;
  color: var(--c-text-soft);
}

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

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

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

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

/* 2.5 页面标题区 */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0 28px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: var(--section-gap);
}

.page-header-text,
.page-header-main {
  flex: 1 1 auto;
  min-width: 0;
}

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

.page-summary {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text-soft);
  max-width: 760px;
}

.page-tag {
  flex-shrink: 0;
  align-self: flex-start;
  display: inline-block;
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  border: 1px solid #CBE0E8;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.page-description {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-soft);
  max-width: 860px;
}

/* 2.6 页脚 */
.site-footer {
  background: var(--c-card);
  border-top: 1px solid var(--c-line);
  margin-top: 24px;
}

.footer-inner {
  max-width: var(--w-main);
  margin: 0 auto;
  padding: 48px 24px 28px;
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--c-line);
}

.footer-group-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 14px;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--c-text-soft);
  line-height: 1.6;
}

.footer-links a:hover {
  color: var(--c-primary);
}

.footer-brand {
  padding-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
  max-width: 900px;
}

.footer-copy {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
  color: var(--c-text-soft);
}

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

.footer-copy a:hover {
  color: var(--c-primary);
}


/* ---------------------------------------------------------
   3. components —— 通用模块、卡片、列表、表格、步骤、筛选
   --------------------------------------------------------- */

/* 3.1 通用 section */
.section {
  margin-bottom: var(--section-gap);
}

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

.section-title,
.section-head h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.4;
}

.section-note,
.section-desc,
.section-lead {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-soft);
  max-width: 880px;
}

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

.section-more a {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  color: var(--c-primary);
  background: var(--c-card);
  line-height: 1.5;
}

.section-more a:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

.section-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 880px;
}

.section-body p + p {
  margin-top: 10px;
}

/* 3.2 条目封面卡（首页封面网格） */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cover-card {
  display: flex;
  flex-direction: column;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.cover-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
}

.cover-figure {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--c-primary-soft);
}

.cover-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-name {
  margin-top: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

.cover-tag {
  margin-top: 6px;
  font-size: 13px;
  color: var(--c-primary);
}

.cover-state {
  margin-top: 4px;
  font-size: 13px;
  color: var(--c-text-soft);
}

/* 3.3 题材方向容器（首页 / 题材分类 / 更新页共用） */
.direction-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.direction-card,
.direction-block {
  display: flex;
  flex-direction: column;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.direction-card:hover,
.direction-block:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
}

.direction-figure {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--c-primary-soft);
  margin-bottom: 12px;
}

.direction-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.direction-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.45;
}

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

.direction-name a:hover {
  color: var(--c-primary);
}

.direction-desc,
.direction-scope {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
  flex: 1 1 auto;
}

.direction-enter,
.direction-link {
  margin-top: 14px;
  align-self: flex-start;
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-primary);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  background: var(--c-card);
}

.direction-enter:hover,
.direction-link:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

.direction-points {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.direction-points li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.direction-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-primary);
}

/* 3.4 更新记录列表（首页右侧栏） */
.update-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.update-item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "batch name"
    "batch dir"
    "batch type";
  gap: 2px 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
}

.update-batch {
  grid-area: batch;
  align-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  color: #7A5210;
  background: var(--c-accent-soft);
  border: 1px solid #EBD3A8;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.update-name {
  grid-area: name;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.5;
}

.update-dir {
  grid-area: dir;
  font-size: 13px;
  color: var(--c-primary);
}

.update-type {
  grid-area: type;
  font-size: 13px;
  color: var(--c-text-soft);
}

/* 3.5 位次列表（首页 + 人气位次页） */
.rank-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.rank-item,
.rank-row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
}

.rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--c-primary);
  border-radius: var(--radius-sm);
}

.rank-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.5;
  min-width: 0;
}

.rank-dir,
.rank-direction {
  font-size: 13px;
  color: var(--c-primary);
}

.rank-range {
  font-size: 13px;
  color: var(--c-text-soft);
  white-space: nowrap;
  justify-self: end;
}

/* 3.6 字段口径摘要（首页右侧栏） */
.field-summary {
  display: grid;
  grid-template-columns: minmax(96px, auto) 1fr;
  gap: 4px 16px;
  border-top: 1px solid var(--c-line);
  padding-top: 12px;
}

.field-summary dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  padding: 8px 0;
  border-bottom: 1px solid var(--c-line);
}

.field-summary dd {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
  padding: 8px 0;
  border-bottom: 1px solid var(--c-line);
}

/* 3.7 查阅路径步骤条（首页 / 题材分类 / 条目字段说明） */
.path-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.path-step {
  position: relative;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 16px;
  box-shadow: var(--shadow-card);
}

.step-no,
.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--c-primary);
  border-radius: var(--radius-sm);
}

.step-title,
.step-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.path-step p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.step-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--c-primary);
  border-bottom: 1px solid currentColor;
  line-height: 1.6;
}

.step-link:hover {
  color: var(--c-primary-dark);
}

.path-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.path-note a {
  color: var(--c-primary);
  border-bottom: 1px solid currentColor;
}

/* 3.8 站内栏目索引（各页复用） */
.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-col {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
}

.index-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

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

.index-name a:hover {
  color: var(--c-primary);
}

.index-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.index-links,
.index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.index-links li,
.index-list li {
  flex: 1 1 200px;
  min-width: 180px;
}

.index-links a,
.index-list a {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--c-text);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  line-height: 1.5;
}

.index-links a:hover,
.index-list a:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* 3.9 表格（更新记录 / 字段字典） */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 4px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.update-table,
.dict-table {
  min-width: 640px;
  font-size: 14px;
}

.update-table th,
.dict-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line-strong);
  white-space: nowrap;
}

.update-table td,
.dict-table td {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
  border-bottom: 1px solid var(--c-line);
  vertical-align: top;
}

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

.update-table tbody tr:hover td,
.dict-table tbody tr:hover td {
  background: #FBFDFE;
}

.update-table td:first-child,
.dict-table td:first-child {
  font-weight: 600;
  color: var(--c-text);
  white-space: nowrap;
}

/* 3.10 筛选控件（更新页 / 位次页） */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--c-line);
}

.filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-tag,
.filter-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-text);
  background: var(--c-card);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.filter-tag:hover,
.filter-chip:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.filter-tag.is-active,
.filter-chip.is-active {
  color: #fff;
  background: var(--c-primary);
  border-color: var(--c-primary);
}

.filter-count,
.rank-count {
  font-size: 14px;
  color: var(--c-text-soft);
  margin-left: auto;
}

.rank-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 18px 0 6px;
}

.rank-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 3.11 变更类型字段解释 */
.change-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
}

.change-item {
  display: grid;
  grid-template-columns: minmax(96px, auto) 1fr;
  gap: 4px 16px;
  padding: 14px 16px;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.change-item dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.change-item dd {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.change-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  border: 1px solid #CBE0E8;
  border-radius: var(--radius-sm);
}

.change-new {
  color: #1E7A4F;
  background: #E6F4EC;
  border-color: #BCE0CB;
}

.change-move {
  color: #7A5210;
  background: var(--c-accent-soft);
  border-color: #EBD3A8;
}

.change-field {
  color: var(--c-text-soft);
  background: var(--c-bg);
  border-color: var(--c-line);
}

/* 3.12 通用媒体块 */
.section-media {
  margin: 0 0 var(--section-gap);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 14px;
}

.section-media img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.section-media figcaption {
  padding: 0 2px;
}


/* ---------------------------------------------------------
   4. pages —— 各页专属模块
   --------------------------------------------------------- */

/* 4.1 首页：顶部事实条 */
.fact-bar {
  background: var(--c-primary);
}

.fact-bar p {
  max-width: var(--w-main);
  margin: 0 auto;
  padding: 9px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: #EAF4F7;
}

/* 4.2 首页：首屏定位区 */
.hero {
  background: var(--c-card);
  border-bottom: 1px solid var(--c-line);
}

.hero-inner {
  max-width: var(--w-main);
  margin: 0 auto;
  padding: 44px 24px 48px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.hero-kicker {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  border: 1px solid #CBE0E8;
  border-radius: var(--radius-sm);
}

.hero-title {
  margin-top: 16px;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-text);
}

.hero-summary {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 620px;
}

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

.path-btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 15px;
  line-height: 1.5;
  color: #fff;
  background: var(--c-primary);
  border: 1px solid var(--c-primary);
  border-radius: var(--radius-sm);
}

.path-btn:hover {
  color: #fff;
  background: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
}

.hero-paths li:nth-child(2) .path-btn,
.hero-paths li:nth-child(3) .path-btn {
  color: var(--c-primary);
  background: var(--c-card);
  border-color: var(--c-line-strong);
}

.hero-paths li:nth-child(2) .path-btn:hover,
.hero-paths li:nth-child(3) .path-btn:hover {
  color: var(--c-primary-dark);
  background: var(--c-primary-soft);
  border-color: var(--c-primary);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.hero-figure {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px;
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.hero-tags-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li {
  padding: 5px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  border: 1px solid #CBE0E8;
  border-radius: var(--radius-sm);
}

/* 4.3 首页：并列区（左主右辅） */
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
  gap: 32px;
  align-items: start;
}

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

.split-aside {
  min-width: 0;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px;
}

.split-aside h2 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
}

.aside-note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.aside-more {
  margin-top: 16px;
  font-size: 14px;
}

.aside-more a {
  display: inline-block;
  padding: 8px 16px;
  color: var(--c-primary);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  background: var(--c-card);
  line-height: 1.5;
}

.aside-more a:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* 4.4 首页：查阅路径区 */
.path-section .path-note {
  padding: 14px 16px;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-sm);
}

/* 4.5 题材分类页：选择方法 */
.method-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.method-item {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 16px;
  box-shadow: var(--shadow-card);
}

.method-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.method-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* 4.6 题材分类页：方向特征与更新节奏 */
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.feature-block {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 16px;
  border-top: 3px solid var(--c-primary);
}

.feature-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.feature-text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.feature-rhythm {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--c-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-primary);
}

/* 4.7 更新页：方向对应关系 */
.section-direction-map .direction-block {
  padding: 16px;
}

.section-direction-map .direction-block p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.section-direction-map .direction-name {
  font-size: 16px;
}

.dir-tag,
.batch-no {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  color: #7A5210;
  background: var(--c-accent-soft);
  border: 1px solid #EBD3A8;
  border-radius: var(--radius-sm);
}

/* 4.8 人气位次页：主辅两栏 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
  gap: 36px;
  align-items: start;
}

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

.content-aside {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.content-aside .aside-block {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.aside-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.45;
}

.aside-lead {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.field-mini {
  margin-top: 12px;
  display: grid;
  grid-template-columns: minmax(80px, auto) 1fr;
  gap: 4px 12px;
  border-top: 1px solid var(--c-line);
  padding-top: 10px;
}

.field-mini dt {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text);
  padding: 6px 0;
  border-bottom: 1px solid var(--c-line);
}

.field-mini dd {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
  padding: 6px 0;
  border-bottom: 1px solid var(--c-line);
}

.aside-link {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--c-primary);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  background: var(--c-card);
  line-height: 1.5;
}

.aside-link:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* 4.9 人气位次页：口径说明 */
.criteria-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.criteria-item {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
}

.criteria-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.criteria-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* 4.10 人气位次页：列表区块 */
.rank-figure {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 18px;
}

.rank-figure img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.rank-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.rank-note {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.rank-note a {
  color: var(--c-primary);
  border-bottom: 1px solid currentColor;
}

/* 4.11 人气位次页：变动区间 */
.range-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.range-card {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
  border-left: 3px solid var(--c-accent);
}

.range-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.range-card p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* 4.12 人气位次页：交叉查看 */
.cross-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cross-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
}

.cross-no {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--c-primary);
  border-radius: var(--radius-sm);
}

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

.cross-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.cross-body p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

/* 4.13 字段说明页：整体容器 */
.layout-shell {
  display: block;
}

/* 4.14 字段说明页：字段字典图 */
.dict-figure {
  margin-bottom: 18px;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px;
}

.dict-figure img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* 4.15 字段说明页：口径边界 */
.scope-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.scope-item {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
}

.scope-item-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.scope-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* 4.16 字段说明页：纠错反馈说明 */
.feedback-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.feedback-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

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

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

.feedback-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-primary);
}

.feedback-link {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--c-primary);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

.feedback-link:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* 4.17 字段说明页：栏目索引 */
.column-index-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.column-index-item {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
}

.column-index-item a {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.5;
}

.column-index-item a:hover {
  color: var(--c-primary);
}

.column-index-item p {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

/* 4.18 404 页 */
.error-main {
  max-width: var(--w-main);
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.error-panel {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 40px 32px;
  max-width: 720px;
}

.error-code {
  font-size: 44px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--c-primary);
}

.error-panel h1 {
  margin-top: 12px;
  font-size: 26px;
  font-weight: 600;
  line-height: 1.4;
}

.error-text {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.error-links {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.error-links a {
  display: inline-block;
  padding: 9px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-text);
  background: var(--c-card);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
}

.error-links a:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

.error-home {
  display: inline-block;
  margin-top: 20px;
  padding: 11px 22px;
  font-size: 15px;
  line-height: 1.5;
  color: #fff;
  background: var(--c-primary);
  border: 1px solid var(--c-primary);
  border-radius: var(--radius-sm);
}

.error-home:hover {
  color: #fff;
  background: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
}


/* ---------------------------------------------------------
   5. responsive —— 1024 / 768 / 480 三档
   --------------------------------------------------------- */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 28px;
  }

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

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

  .split-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 1fr);
    gap: 24px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) minmax(250px, 290px);
    gap: 28px;
  }

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

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

  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 60px;
    background: var(--c-card);
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 6px 14px rgba(34, 49, 58, 0.08);
    padding: 8px 16px 14px;
    justify-content: flex-start;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    width: 100%;
  }

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

  .nav-list a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 0;
    border-left: 3px solid transparent;
    border-radius: var(--radius-sm);
  }

  .nav-list a.is-current {
    border-bottom-color: transparent;
    border-left-color: var(--c-primary);
    background: var(--c-primary-soft);
    border-radius: var(--radius-sm);
  }

  .fact-bar p {
    padding: 8px 16px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
    padding: 30px 16px 34px;
  }

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

  .inner-main {
    padding: 0 16px 56px;
  }

  .page-header {
    flex-direction: column;
    gap: 12px;
    padding: 16px 0 22px;
    margin-bottom: 32px;
  }

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

  .page-tag {
    align-self: flex-start;
  }

  .section {
    margin-bottom: 36px;
  }

  .section-title,
  .section-head h2 {
    font-size: 20px;
  }

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

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

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

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

  .path-steps,
  .method-list,
  .criteria-list,
  .range-grid,
  .cross-steps,
  .scope-list,
  .change-list,
  .feature-list,
  .feedback-body {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .index-links li,
  .index-list li {
    flex: 1 1 100%;
    min-width: 0;
  }

  .rank-item,
  .rank-row {
    grid-template-columns: 40px 1fr;
    grid-template-areas:
      "no name"
      "no range";
    row-gap: 4px;
  }

  .rank-no {
    grid-area: no;
  }

  .rank-name {
    grid-area: name;
  }

  .rank-dir,
  .rank-direction {
    grid-column: 2;
  }

  .rank-range {
    grid-area: range;
    justify-self: start;
  }

  .filter-count,
  .rank-count {
    margin-left: 0;
    width: 100%;
  }

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

  .footer-inner {
    padding: 36px 16px 24px;
  }

  .error-main {
    padding: 40px 16px 56px;
  }

  .error-panel {
    padding: 28px 20px;
  }

  .error-code {
    font-size: 36px;
  }

  .section-media,
  .rank-figure,
  .dict-figure {
    padding: 10px;
  }
}

@media (max-width: 480px) {
  .brand-sub {
    font-size: 14px;
  }

  .hero-title {
    font-size: 23px;
  }

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

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

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

  .path-btn {
    justify-content: center;
    width: 100%;
  }

  .update-item {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "batch"
      "name"
      "dir"
      "type";
    gap: 4px;
  }

  .update-batch {
    justify-self: start;
  }

  .field-summary,
  .field-mini {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .field-summary dt,
  .field-mini dt {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .field-summary dd,
  .field-mini dd {
    padding-top: 2px;
  }

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

  .filter-tags,
  .rank-filter {
    width: 100%;
  }

  .filter-tag,
  .filter-chip {
    flex: 1 1 auto;
    justify-content: center;
  }
}