/* ═══════════════════════════════════════════════════════════
   Theme: Ocean Breeze
   Design reference: moban (card-based warm earth tone layout)
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Funnel+Sans:wght@300;400;500;600;700&display=swap');

/* ── CSS Variable Defaults ── */
:root {
  --ob-color-bg: #EDEBE8;
  --ob-color-bg-elevated: #ffffff;
  --ob-color-bg-muted: #E8E6E3;
  --ob-color-bg-section-blue: #F2F5FA;
  --ob-color-bg-section-green: #F5FAF8;
  --ob-color-bg-section-olive: #F5F6F0;
  --ob-color-text: #1A1A1A;
  --ob-color-text-secondary: #3D3D3D;
  --ob-color-text-muted: #6B6B6B;
  --ob-color-text-light: #F3EBE2;
  --ob-color-text-nav: #3D3D3D;
  --ob-color-border: #DEDDD9;
  --ob-color-divider: #EDEBE8;
  --ob-color-accent: #D4916E;
  --ob-color-accent-hover: #C07E5C;
  --ob-color-accent-soft: #D4916E20;
  --ob-color-link: #D4916E;
  --ob-color-link-hover: #C07E5C;
  --ob-color-overlay: rgba(0, 0, 0, 0.5);
  --ob-color-badge-green: #F5FAF8;
  --ob-color-badge-olive: #F5F6F0;
  --ob-color-badge-blue: #F0F3F8;
  --ob-color-badge-mint: #F0F7F5;
  --ob-color-tip-bg: #F0F7F5;
  --ob-color-footer-bg: #1A1A1A;
  --ob-color-footer-text: #6B6B6B;
  --ob-color-footer-muted: #9CA3AF;
  --ob-color-footer-line: #3D3D3D;

  --ob-font-family: 'Funnel Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ob-font-size-xs: 12px;
  --ob-font-size-sm: 14px;
  --ob-font-size-base: 15px;
  --ob-font-size-lg: 16px;
  --ob-font-size-xl: 22px;
  --ob-font-size-2xl: 28px;
  --ob-font-size-3xl: 36px;
  --ob-line-height-base: 1.7;
  --ob-line-height-heading: 1.15;

  --ob-max-width: 1440px;
  --ob-content-width: 800px;
  --ob-gap-card: 6px;
  --ob-gap-base: 24px;
  --ob-gap-lg: 32px;
  --ob-gap-xl: 48px;
  --ob-side-padding: 48px;

  --ob-radius: 16px;
  --ob-radius-sm: 8px;
  --ob-radius-full: 999px;

  --ob-shadow-card: none;
  --ob-shadow-card-hover: 0 8px 25px -5px rgba(0, 0, 0, 0.06), 0 4px 10px -3px rgba(0, 0, 0, 0.03);
  --ob-shadow-header: none;
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ob-font-family);
  font-size: var(--ob-font-size-base);
  line-height: var(--ob-line-height-base);
  color: var(--ob-color-text);
  background-color: var(--ob-color-bg);
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

/* ── Page Wrapper (card-based layout) ── */
.ob-home,
.ob-list,
.ob-detail,
.ob-custom {
  max-width: var(--ob-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--ob-gap-card);
  padding: var(--ob-gap-card);
  min-height: 100vh;
}

/* ── Header ── */
.ob-header {
  background-color: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  position: relative;
  z-index: 100;
}

.ob-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 var(--ob-side-padding);
}

.ob-header__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}

.ob-header__logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.ob-header__site-name {
  font-size: 20px;
  font-weight: 500;
  color: var(--ob-color-text);
}

.ob-header__nav-toggle {
  display: none;
}

.ob-header__hamburger {
  display: none;
  cursor: pointer;
  color: var(--ob-color-text);
}

.ob-header__nav {
  display: flex;
  align-items: center;
}

.ob-header__menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.ob-header__menu-item {
  position: relative;
}

.ob-header__menu-link {
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-secondary);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.2s;
  white-space: nowrap;
}

.ob-header__menu-link:hover {
  color: var(--ob-color-text);
}

/* Dropdown submenu */
.ob-header__menu-item--has-children .ob-header__submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius-sm);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  min-width: 140px;
  z-index: 200;
}

.ob-header__menu-item--has-children:hover .ob-header__submenu {
  display: block;
}

.ob-header__submenu-link {
  display: block;
  padding: 8px 20px;
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-nav);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.ob-header__submenu-link:hover {
  background: var(--ob-color-bg-muted);
  color: var(--ob-color-accent);
}

/* Search icon */
.ob-header__search {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  flex-shrink: 0;
}

.ob-header__search svg {
  color: var(--ob-color-text-secondary);
  flex-shrink: 0;
}

.ob-header__search span {
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-muted);
}

/* ── Hero Section ── */
.ob-hero {
  display: flex;
  gap: var(--ob-gap-card);
  height: 480px;
}

.ob-hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
  flex: 1;
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  padding: 64px var(--ob-side-padding);
}

.ob-hero__badge {
  background: var(--ob-color-badge-green);
  border-radius: var(--ob-radius-full);
  padding: 6px 16px;
  width: fit-content;
}

.ob-hero__badge-text {
  font-size: var(--ob-font-size-xs);
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--ob-color-text);
}

.ob-hero__title {
  font-size: 56px;
  font-weight: 400;
  color: var(--ob-color-text);
  line-height: 1.05;
  letter-spacing: -0.5px;
}

.ob-hero__summary {
  font-size: var(--ob-font-size-lg);
  color: var(--ob-color-text-secondary);
  line-height: 1.6;
}

.ob-hero__author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.ob-hero__author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ob-color-badge-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--ob-color-text);
}

.ob-hero__author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ob-hero__author-name {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-text);
}

.ob-hero__meta {
  font-size: 13px;
  color: var(--ob-color-text-muted);
}

.ob-hero__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ob-color-text);
  color: var(--ob-color-text-light);
  font-size: var(--ob-font-size-sm);
  font-weight: 700;
  border-radius: var(--ob-radius-full);
  padding: 14px 32px;
  width: fit-content;
  text-decoration: none;
  transition: opacity 0.2s;
}

.ob-hero__button:hover {
  opacity: 0.9;
}

.ob-hero__image-wrap {
  position: relative;
  flex: 1;
  border-radius: var(--ob-radius);
  overflow: hidden;
}

.ob-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Section Header ── */
.ob-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ob-section-header__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 20px;
  font-weight: 700;
}

.ob-section-header__title {
  font-size: var(--ob-font-size-3xl);
  font-weight: 400;
  color: var(--ob-color-text);
  line-height: 1.1;
}

.ob-section-header__label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--ob-color-text-muted);
}

.ob-section-header__link {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: opacity 0.2s;
  margin-left: auto;
}

.ob-section-header__link span {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-accent);
}

.ob-section-header__link svg {
  color: var(--ob-color-accent);
  stroke: currentColor;
  fill: none;
}

.ob-section-header__link:hover {
  opacity: 0.8;
}

/* ── Category Section (Home) ── */
.ob-category-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 32px var(--ob-side-padding);
  border-radius: var(--ob-radius);
}

.ob-category-section__grid {
  display: flex;
  gap: var(--ob-gap-card);
}

/* ── Article Card ── */
.ob-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--ob-radius);
  overflow: hidden;
  flex: 1;
  text-decoration: none;
  transition: transform 0.2s;
}

.ob-card:hover {
  transform: translateY(-2px);
}

.ob-card__image {
  display: block;
  position: relative;
  height: 180px;
  width: 100%;
  overflow: hidden;
}

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

.ob-card__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: var(--ob-color-bg-elevated);
}

.ob-card__badge {
  display: inline-flex;
  width: fit-content;
  border-radius: var(--ob-radius-full);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ob-color-text);
}

.ob-card__title {
  font-size: var(--ob-font-size-lg);
  font-weight: 500;
  color: var(--ob-color-text);
  line-height: 1.3;
}

.ob-card__title a {
  color: inherit;
  text-decoration: none;
}

.ob-card__title a:hover {
  color: var(--ob-color-accent);
}

.ob-card__summary {
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-secondary);
  line-height: 1.5;
}

.ob-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ob-color-text-muted);
}

.ob-card__date,
.ob-card__views {
  color: inherit;
}

/* ── List Page ── */
.ob-list__breadcrumb-bar {
  display: flex;
  align-items: center;
  padding: 12px var(--ob-side-padding);
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
}

.ob-list__hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 64px var(--ob-side-padding);
  border-radius: var(--ob-radius);
}

.ob-list__hero-title {
  font-size: 48px;
  font-weight: 400;
  color: var(--ob-color-text);
  line-height: 1.1;
}

.ob-list__hero-description {
  font-size: var(--ob-font-size-lg);
  color: var(--ob-color-text-secondary);
  line-height: 1.6;
  text-align: center;
  max-width: 600px;
}

.ob-list__main {
  display: flex;
  flex-direction: column;
  gap: var(--ob-gap-card);
  padding: 32px var(--ob-side-padding);
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
}

.ob-list__section-title {
  font-size: 24px;
  font-weight: 400;
  color: var(--ob-color-text);
}

.ob-list__grid {
  display: flex;
  flex-direction: column;
  gap: var(--ob-gap-card);
}

.ob-list__row {
  display: flex;
  gap: var(--ob-gap-card);
}

.ob-list__empty {
  text-align: center;
  color: var(--ob-color-text-muted);
  padding: 60px 0;
  font-size: var(--ob-font-size-lg);
}

/* ── Breadcrumb ── */
.ob-breadcrumb {
  padding: 0;
}

.ob-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.ob-breadcrumb__item {
  display: flex;
  align-items: center;
  font-size: 13px;
}

.ob-breadcrumb__item a {
  color: var(--ob-color-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.ob-breadcrumb__item a:hover {
  color: var(--ob-color-accent);
}

.ob-breadcrumb__item span[aria-current="page"] {
  font-weight: 500;
  color: var(--ob-color-accent);
}

.ob-breadcrumb__separator {
  margin: 0 8px;
  color: #C5BEB6;
  font-size: 12px;
}

/* ── Pagination ── */
.ob-pagination-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px var(--ob-side-padding);
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
}

.ob-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.ob-pagination__pages {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ob-pagination__page {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--ob-radius-sm);
  border: 1px solid var(--ob-color-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--ob-color-text-secondary);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.ob-pagination__page:hover {
  background: var(--ob-color-bg-muted);
}

.ob-pagination__page--current {
  background: var(--ob-color-text);
  color: var(--ob-color-text-light);
  border-color: var(--ob-color-text);
}

.ob-pagination__page--current:hover {
  background: var(--ob-color-text);
}

.ob-pagination__ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 13px;
  color: var(--ob-color-text-muted);
}

.ob-pagination__prev,
.ob-pagination__next {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--ob-radius-sm);
  border: 1px solid var(--ob-color-border);
  background: var(--ob-color-bg-elevated);
  font-size: 13px;
  color: var(--ob-color-text-secondary);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.ob-pagination__prev:hover,
.ob-pagination__next:hover {
  background: var(--ob-color-bg-muted);
  color: var(--ob-color-text);
}

.ob-pagination__prev--disabled,
.ob-pagination__next--disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.ob-pagination__compact {
  display: none;
}

/* ── Detail Page ── */
.ob-detail__hero {
  display: flex;
  gap: var(--ob-gap-card);
}

.ob-detail__hero-image-wrap {
  position: relative;
  flex: 1;
  height: 380px;
  border-radius: var(--ob-radius);
  overflow: hidden;
}

.ob-detail__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ob-detail__hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
  width: 520px;
  flex-shrink: 0;
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  padding: 40px;
}

.ob-detail__hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ob-detail__hero-breadcrumb a,
.ob-detail__hero-breadcrumb span {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--ob-color-text-muted);
  text-decoration: none;
}

.ob-detail__hero-breadcrumb span[data-current] {
  font-weight: 500;
  color: var(--ob-color-accent);
}

.ob-detail__hero-breadcrumb .ob-sep {
  font-size: 12px;
  color: #C5BEB6;
}

.ob-detail-article__category-badge {
  display: inline-block;
  background: var(--ob-color-accent-soft);
  color: var(--ob-color-accent);
  font-size: var(--ob-font-size-xs);
  font-weight: 500;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: 20px;
  width: fit-content;
}

.ob-detail-article__title {
  font-size: var(--ob-font-size-3xl);
  font-weight: 400;
  color: var(--ob-color-text);
  line-height: var(--ob-line-height-heading);
  letter-spacing: -0.5px;
}

.ob-detail-article__meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.ob-detail-article__author-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ob-detail-article__author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 20px;
  background: var(--ob-color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.ob-detail-article__author-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.ob-detail-article__author-name {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-text);
}

.ob-detail-article__meta-text {
  font-size: var(--ob-font-size-xs);
  color: var(--ob-color-text-muted);
}

/* Article body section */
.ob-detail__body-row {
  display: flex;
  gap: var(--ob-gap-card);
}

.ob-detail-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  padding: 40px var(--ob-side-padding);
}

/* Article body */
.ob-detail-body {
  font-size: var(--ob-font-size-lg);
  color: var(--ob-color-text-secondary);
  line-height: 1.7;
}

.ob-detail-body h2 {
  font-size: var(--ob-font-size-2xl);
  font-weight: 400;
  color: var(--ob-color-text);
  margin: 32px 0 16px;
  line-height: var(--ob-line-height-heading);
  letter-spacing: -0.5px;
}

.ob-detail-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ob-color-text);
  margin: 24px 0 12px;
}

.ob-detail-body p {
  margin-bottom: 24px;
}

.ob-detail-body ul,
.ob-detail-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.ob-detail-body ul {
  list-style: disc;
}

.ob-detail-body ol {
  list-style: decimal;
}

.ob-detail-body li {
  margin-bottom: 8px;
}

.ob-detail-body blockquote {
  border-left: 4px solid var(--ob-color-accent);
  padding: 8px 16px;
  margin: 24px 0;
  background: var(--ob-color-tip-bg);
  border-radius: 0 var(--ob-radius) var(--ob-radius) 0;
}

.ob-detail-body blockquote p {
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-secondary);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 0;
}

.ob-detail-body a {
  color: var(--ob-color-link);
  text-decoration: underline;
}

.ob-detail-body a:hover {
  color: var(--ob-color-link-hover);
}

.ob-detail-body img {
  border-radius: var(--ob-radius);
  margin: 16px 0;
}

.ob-detail-body pre {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 16px;
  border-radius: var(--ob-radius-sm);
  overflow-x: auto;
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.5;
}

.ob-detail-body code {
  background: var(--ob-color-bg-muted);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.ob-detail-body pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

.ob-detail-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.ob-detail-body th,
.ob-detail-body td {
  padding: 10px 14px;
  border: 1px solid var(--ob-color-border);
  text-align: left;
}

.ob-detail-body th {
  background: var(--ob-color-bg-muted);
  font-weight: 600;
  color: var(--ob-color-text);
}

/* Divider */
.ob-divider {
  height: 1px;
  width: 100%;
  background: var(--ob-color-divider);
}

/* Tags */
.ob-detail-tags {
  margin-top: 0;
}

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

.ob-tags__item {
  display: inline-block;
  padding: 6px 14px;
  background: var(--ob-color-badge-olive);
  border-radius: 20px;
  font-size: var(--ob-font-size-xs);
  font-weight: 500;
  color: var(--ob-color-text-secondary);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.ob-tags__item:hover {
  background: var(--ob-color-accent);
  color: #fff;
}

/* Prev/Next navigation */
.ob-detail-nav {
  display: flex;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--ob-color-divider);
}

.ob-detail-nav__prev,
.ob-detail-nav__next {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: var(--ob-color-bg-muted);
  border-radius: var(--ob-radius-sm);
  text-decoration: none;
  transition: background 0.15s;
}

.ob-detail-nav__prev:hover,
.ob-detail-nav__next:hover {
  background: var(--ob-color-divider);
}

.ob-detail-nav__prev span,
.ob-detail-nav__next span {
  font-size: var(--ob-font-size-xs);
  color: var(--ob-color-text-muted);
}

.ob-detail-nav__prev strong,
.ob-detail-nav__next strong {
  font-size: var(--ob-font-size-sm);
  font-weight: 600;
  color: var(--ob-color-text);
}

.ob-detail-nav__next {
  text-align: right;
}

/* Sidebar */
.ob-detail-sidebar {
  width: 320px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--ob-gap-card);
  align-self: flex-start;
}

.ob-detail-sidebar__section {
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ob-detail-sidebar__section--alt {
  background: var(--ob-color-bg-section-olive);
}

.ob-detail-sidebar__title {
  font-size: 18px;
  font-weight: 500;
  color: var(--ob-color-text);
}

.ob-detail-sidebar__divider {
  height: 1px;
  background: var(--ob-color-divider);
}

.ob-sidebar-article {
  display: flex;
  gap: 12px;
  text-decoration: none;
  align-items: center;
}

.ob-sidebar-article:hover .ob-sidebar-article__title {
  color: var(--ob-color-accent);
}

.ob-sidebar-article__image {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}

.ob-sidebar-article__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ob-sidebar-article__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ob-sidebar-article__title {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-text);
  line-height: 1.4;
  transition: color 0.15s;
}

.ob-sidebar-article__meta {
  font-size: var(--ob-font-size-xs);
  color: var(--ob-color-text-muted);
}

/* ── Title Item (hot articles list) ── */
.ob-title-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
}

.ob-title-item__marker {
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 700;
  color: #C5BEB6;
  min-width: 28px;
}

.ob-title-item__marker--number {
  font-weight: 700;
}

.ob-title-item--top .ob-title-item__marker {
  color: var(--ob-color-accent);
}

.ob-title-item__link {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-text-secondary);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.15s;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ob-title-item--top .ob-title-item__link {
  color: var(--ob-color-text);
}

.ob-title-item__link:hover {
  color: var(--ob-color-accent);
}

/* ── Footer ── */
.ob-footer {
  background-color: var(--ob-color-footer-bg);
  border-radius: var(--ob-radius);
}

.ob-footer__container {
  padding: var(--ob-side-padding);
}

.ob-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--ob-side-padding);
}

.ob-footer__top {
  display: flex;
  justify-content: space-between;
}

.ob-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 300px;
}

.ob-footer__brand-name {
  font-size: 20px;
  font-weight: 500;
  color: var(--ob-color-text-light);
}

.ob-footer__brand-desc {
  font-size: var(--ob-font-size-sm);
  color: var(--ob-color-text-muted);
  line-height: 1.6;
}

.ob-footer__groups {
  display: flex;
  gap: 56px;
}

.ob-footer__group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ob-footer__group-title {
  font-size: var(--ob-font-size-sm);
  font-weight: 500;
  color: var(--ob-color-text-light);
}

.ob-footer__group-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ob-footer__link {
  font-size: 13px;
  color: var(--ob-color-footer-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.ob-footer__link:hover {
  color: var(--ob-color-text-light);
}

.ob-footer__divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.ob-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ob-footer__copyright {
  font-size: 13px;
  color: var(--ob-color-footer-muted);
}

.ob-footer__icp {
  color: var(--ob-color-footer-muted);
  text-decoration: none;
  margin-right: 8px;
}

.ob-footer__icp:hover {
  color: var(--ob-color-text-light);
}

/* ── Custom Page ── */
.ob-custom__container {
  flex: 1;
  max-width: var(--ob-content-width);
  margin: 0 auto;
  width: 100%;
  background: var(--ob-color-bg-elevated);
  border-radius: var(--ob-radius);
  padding: var(--ob-side-padding);
}

.ob-custom__title {
  font-size: 32px;
  font-weight: 400;
  color: var(--ob-color-text);
  margin-bottom: 32px;
}

/* ── Home Empty State ── */
.ob-home-latest__empty {
  text-align: center;
  color: var(--ob-color-text-muted);
  padding: 60px 0;
  font-size: var(--ob-font-size-lg);
}

/* ═══════════════════════════════════════════════════════════
   Responsive Breakpoints
   ═══════════════════════════════════════════════════════════ */

/* ── Tablet (640px - 1023px) ── */
@media (max-width: 1023px) {
  :root {
    --ob-side-padding: 32px;
  }

  .ob-header__container {
    height: 52px;
  }

  .ob-header__search {
    display: none;
  }

  .ob-header__hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .ob-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ob-color-bg-elevated);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 16px 0;
    z-index: 200;
    border-radius: 0 0 var(--ob-radius) var(--ob-radius);
  }

  .ob-header__nav-toggle:checked ~ .ob-header__nav {
    display: block;
  }

  .ob-header__menu {
    flex-direction: column;
    gap: 0;
  }

  .ob-header__menu-item {
    width: 100%;
  }

  .ob-header__menu-link {
    display: block;
    padding: 12px var(--ob-side-padding);
  }

  .ob-header__menu-item--has-children .ob-header__submenu {
    position: static;
    transform: none;
    box-shadow: none;
    padding: 0 0 0 16px;
    display: block;
  }

  /* Hero */
  .ob-hero {
    flex-direction: column;
    height: auto;
  }

  .ob-hero__content {
    padding: 32px var(--ob-side-padding);
  }

  .ob-hero__title {
    font-size: 36px;
  }

  .ob-hero__image-wrap {
    height: 300px;
  }

  /* Category grid */
  .ob-category-section__grid {
    flex-wrap: wrap;
  }

  .ob-category-section__grid .ob-card {
    flex: 1 1 calc(50% - 3px);
    min-width: calc(50% - 3px);
  }

  /* Detail hero */
  .ob-detail__hero {
    flex-direction: column;
  }

  .ob-detail__hero-image-wrap {
    height: 260px;
  }

  .ob-detail__hero-content {
    width: 100%;
  }

  /* Detail body */
  .ob-detail__body-row {
    flex-direction: column;
  }

  .ob-detail-sidebar {
    width: 100%;
    flex-direction: row;
    gap: var(--ob-gap-card);
  }

  .ob-detail-sidebar__section {
    flex: 1;
  }

  /* List */
  .ob-list__row .ob-card {
    flex: 1 1 calc(50% - 3px);
    min-width: calc(50% - 3px);
  }

  /* Footer */
  .ob-footer__top {
    flex-direction: column;
    gap: 32px;
  }

  .ob-footer__groups {
    gap: 32px;
  }
}

/* ── Mobile (< 640px) ── */
@media (max-width: 639px) {
  :root {
    --ob-side-padding: 16px;
    --ob-gap-card: 4px;
  }

  .ob-header__site-name {
    font-size: 18px;
  }

  /* Hero */
  .ob-hero__content {
    padding: 24px var(--ob-side-padding);
  }

  .ob-hero__title {
    font-size: 28px;
  }

  .ob-hero__summary {
    font-size: var(--ob-font-size-sm);
  }

  .ob-hero__button {
    padding: 12px 24px;
    font-size: var(--ob-font-size-sm);
  }

  .ob-hero__image-wrap {
    height: 220px;
  }

  /* Category grid: single column */
  .ob-category-section__grid .ob-card {
    flex: 1 1 100%;
    min-width: 100%;
  }

  /* Section header */
  .ob-section-header__title {
    font-size: 24px;
  }

  /* List */
  .ob-list__hero-title {
    font-size: 32px;
  }

  .ob-list__row .ob-card {
    flex: 1 1 100%;
    min-width: 100%;
  }

  /* Detail */
  .ob-detail__hero-content {
    padding: 24px;
  }

  .ob-detail-article__title {
    font-size: 28px;
  }

  .ob-detail-article__meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .ob-detail-main {
    padding: 24px;
  }

  .ob-detail-nav {
    flex-direction: column;
    gap: 12px;
  }

  .ob-detail-sidebar {
    flex-direction: column;
  }

  /* Pagination */
  .ob-pagination__pages {
    display: none;
  }

  .ob-pagination__compact {
    display: inline;
    font-size: var(--ob-font-size-sm);
    color: var(--ob-color-text-muted);
  }

  /* Footer */
  .ob-footer__groups {
    flex-direction: column;
    gap: 24px;
  }
}