@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700&family=Comic+Neue:wght@300;400;700&display=swap');

/* ===== 变量 ===== */
:root {
  --c-mint: #5cc6b0;
  --c-sand: #d4c4a8;
  --c-dark: #172623;
  --c-mint-light: #a8e6d8;
  --c-mint-deep: #3aaa93;
  --c-sand-light: #ede5d4;
  --c-sand-dark: #b8a888;
  --c-bg: #faf7f2;
  --c-bg-warm: #f5efe4;
  --c-text: #2a3a36;
  --c-text-muted: #6b7b74;
  --c-border: #c8b896;
  --c-accent: #c67b5c;
  --sidebar-w: 240px;
  --radius-card: 28px;
  --radius-sm: 12px;
  --font-main: 'Baloo 2', 'Comic Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: 0.25s ease-out;
}

/* ===== 重置 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--c-bg);
  color: var(--c-text);
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.7;
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--c-mint-deep);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ===== 整体布局 ===== */
.site-wrapper {
  display: flex;
  min-height: 100vh;
}

.content-area {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 侧边栏导航 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--c-dark);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
  z-index: 100;
  overflow-y: auto;
  border-right: 2px solid var(--c-mint-deep);
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(92,198,176,0.3);
}

.sidebar__brand-icon {
  font-size: 1.6rem;
  color: var(--c-mint);
  flex-shrink: 0;
  line-height: 1;
}

.sidebar__logo {
  border-radius: 8px;
  flex-shrink: 0;
}

.sidebar__brand-name {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--c-sand);
  line-height: 1.3;
  word-break: break-all;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  display: block;
  padding: 0.65rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-sand-light);
  line-height: 1.4;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background var(--transition), color var(--transition);
  border: 1px solid transparent;
}

.nav-link:hover {
  background: rgba(92,198,176,0.15);
  color: var(--c-mint);
  border-color: rgba(92,198,176,0.3);
}

.nav-link--active {
  background: rgba(92,198,176,0.2);
  color: var(--c-mint);
  border-color: var(--c-mint);
}

.sidebar__contact {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(92,198,176,0.3);
}

.sidebar__contact-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1rem;
  min-height: 44px;
  background: var(--c-mint);
  color: var(--c-dark);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.88rem;
  transition: background var(--transition);
}

.sidebar__contact-link:hover {
  background: var(--c-mint-light);
  color: var(--c-dark);
}

/* ===== HERO（首页） ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--c-dark) 0%, #1e3530 50%, #0e201c 100%);
  overflow: hidden;
  text-align: center;
  padding: 4rem 2rem;
}

.hero__bg-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 0;
}

.hero__bg-word {
  font-size: clamp(5rem, 18vw, 18rem);
  font-weight: 700;
  color: rgba(92,198,176,0.05);
  letter-spacing: -0.04em;
  white-space: nowrap;
  user-select: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.hero__h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--c-sand-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero__lead {
  font-size: 1.1rem;
  color: var(--c-sand);
  max-width: 540px;
  line-height: 1.75;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.5rem;
  min-height: 48px;
  background: var(--c-mint);
  color: var(--c-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(92,198,176,0.3);
}

.hero__cta:hover {
  background: var(--c-mint-light);
  color: var(--c-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(92,198,176,0.4);
}

/* ===== 通用内容区眉题 ===== */
.section-eyebrow {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--c-border);
}

.eyebrow-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--c-mint);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.eyebrow-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-text-muted);
  letter-spacing: 0.05em;
}

/* ===== 首页：正文内容区 ===== */
.home-content {
  padding: 4rem 3rem;
  background: var(--c-bg);
}

.home-content__body {
  max-width: 820px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.home-content__body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--c-dark);
}

.home-content__body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--c-text);
}

.home-content__body p {
  margin-bottom: 1rem;
}

.home-content__body a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== 首页：频道卡片 ===== */
.channels-section {
  padding: 3rem 3rem;
  background: var(--c-bg-warm);
}

.ch-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 1rem;
}

.ch-table td {
  padding: 0;
}

.ch-card {
  border: 2px solid var(--c-border);
  border-radius: var(--radius-card);
  background: var(--c-bg);
  transition: border-color var(--transition), transform var(--transition);
  overflow: hidden;
}

.ch-card:hover {
  border-color: var(--c-mint);
  transform: translateY(-2px);
}

.ch-card__link {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.25rem 1rem;
  padding: 1.5rem 1.75rem;
  color: var(--c-text);
  text-decoration: none;
  align-items: center;
}

.ch-card__title {
  grid-column: 1;
  grid-row: 1;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.3;
}

.ch-card__desc {
  grid-column: 1;
  grid-row: 2;
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

.ch-card__count {
  grid-column: 2;
  grid-row: 1;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-mint-deep);
  background: rgba(92,198,176,0.1);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  white-space: nowrap;
}

.ch-card__arrow {
  grid-column: 2;
  grid-row: 2;
  font-size: 1.2rem;
  color: var(--c-mint);
  text-align: right;
  transition: transform var(--transition);
}

.ch-card:hover .ch-card__arrow {
  transform: translateX(4px);
}

/* ===== 首页：文章列表 ===== */
.articles-section {
  padding: 3rem 3rem;
  background: var(--c-bg);
}

.art-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.75rem;
}

.art-table td {
  padding: 0;
}

.art-item {
  border: 2px solid var(--c-border);
  border-radius: var(--radius-card);
  background: var(--c-bg);
  transition: border-color var(--transition);
}

.art-item:hover {
  border-color: var(--c-mint);
}

.art-item__link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.25rem 1.5rem;
  color: var(--c-text);
  text-decoration: none;
}

.art-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.4;
}

.art-item__date {
  font-size: 0.8rem;
  color: var(--c-mint-deep);
  font-weight: 500;
}

.art-item__desc {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* ===== 频道页 Hero ===== */
.channel-hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-dark) 0%, #203530 100%);
  padding: 5rem 3rem 4rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.channel-hero__deco {
  position: absolute;
  top: 0;
  right: 0;
  pointer-events: none;
}

.channel-hero__num {
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 700;
  color: rgba(92,198,176,0.07);
  line-height: 1;
  display: block;
  padding: 1rem;
}

.channel-hero__text {
  position: relative;
  z-index: 1;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.channel-hero__breadcrumb {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 0.88rem;
  color: var(--c-mint);
  font-weight: 500;
  padding: 0.25rem 0;
  transition: color var(--transition);
}

.channel-hero__breadcrumb:hover {
  color: var(--c-mint-light);
}

.channel-hero__h1 {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--c-sand-light);
  line-height: 1.25;
}

.channel-hero__desc {
  font-size: 1rem;
  color: var(--c-sand);
  line-height: 1.7;
}

.channel-hero__date {
  font-size: 0.82rem;
  color: var(--c-sand-dark);
  font-weight: 500;
}

/* ===== 频道页：正文 ===== */
.channel-content {
  padding: 3rem;
  background: var(--c-bg);
}

.channel-content__body {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.channel-content__body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--c-dark);
}

.channel-content__body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.channel-content__body p {
  margin-bottom: 1rem;
}

.channel-content__body a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== 频道页：子页列表 ===== */
.channel-children {
  padding: 2rem 3rem 4rem;
  background: var(--c-bg-warm);
}

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

.children-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.75rem;
}

.child-row td {
  padding: 0;
  vertical-align: middle;
}

.child-row {
  border-radius: var(--radius-card);
}

.child-row__num {
  width: 3.5rem;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-mint);
  background: rgba(92,198,176,0.08);
  border: 2px solid var(--c-border);
  border-right: none;
  border-radius: var(--radius-card) 0 0 var(--radius-card);
  padding: 1.2rem 0.75rem;
  font-variant-numeric: tabular-nums;
}

.child-row__info {
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  border-left: none;
  border-right: none;
  padding: 1rem 1.25rem;
  transition: background var(--transition);
}

.child-row:hover .child-row__info {
  background: rgba(92,198,176,0.05);
}

.child-row__link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--c-text);
  text-decoration: none;
}

.child-row__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-dark);
  transition: color var(--transition);
}

.child-row:hover .child-row__title {
  color: var(--c-mint-deep);
}

.child-row__desc {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

.child-row__date {
  width: 8rem;
  text-align: right;
  font-size: 0.8rem;
  color: var(--c-text-muted);
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  border-left: none;
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  padding: 1rem 1rem;
  white-space: nowrap;
}

.empty-msg {
  padding: 2rem;
  text-align: center;
  color: var(--c-text-muted);
  font-size: 0.9rem;
  border: 2px dashed var(--c-border);
  border-radius: var(--radius-card);
}

/* ===== 文章页 ===== */
.article-header {
  background: linear-gradient(135deg, var(--c-dark) 0%, #1e3530 100%);
  padding: 4rem 3rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.article-header__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.article-header__channel {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.25rem 0.75rem;
  background: rgba(92,198,176,0.15);
  border: 1px solid var(--c-mint);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-mint);
  transition: background var(--transition);
}

.article-header__channel:hover {
  background: rgba(92,198,176,0.3);
  color: var(--c-mint-light);
}

.article-header__date {
  font-size: 0.82rem;
  color: var(--c-sand-dark);
  font-weight: 500;
}

.article-header__titles {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 760px;
}

.article-header__h1 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--c-sand-light);
  line-height: 1.25;
}

.article-header__desc {
  font-size: 1rem;
  color: var(--c-sand);
  line-height: 1.7;
}

.article-hero-img {
  background: var(--c-bg-warm);
  padding: 2rem 3rem;
}

.article-hero__figure {
  max-width: 900px;
}

.article-hero__img {
  width: 100%;
  border-radius: var(--radius-card);
  border: 2px solid var(--c-border);
}

/* ===== 文章正文 ===== */
.article-body {
  padding: 3rem;
  background: var(--c-bg);
  flex: 1;
}

.article-body__content {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-text);
}

.article-body__content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  color: var(--c-dark);
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--c-sand);
}

.article-body__content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
  color: var(--c-text);
}

.article-body__content p {
  margin-bottom: 1.1rem;
}

.article-body__content ul,
.article-body__content ol {
  margin: 1rem 0 1rem 1.5rem;
}

.article-body__content li {
  margin-bottom: 0.5rem;
}

.article-body__content a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body__content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--c-mint);
  background: rgba(92,198,176,0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-muted);
}

.article-body__content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}

.article-body__content th,
.article-body__content td {
  border: 1px solid var(--c-border);
  padding: 0.6rem 0.9rem;
  text-align: left;
}

.article-body__content th {
  background: var(--c-sand-light);
  font-weight: 700;
}

/* ===== 文章：前后导航 ===== */
.article-nav {
  padding: 2rem 3rem;
  background: var(--c-bg-warm);
  border-top: 2px solid var(--c-border);
}

.article-nav__deco {
  margin-bottom: 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.08em;
}

.article-nav__links {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.article-nav__prev,
.article-nav__next {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.25rem;
  min-height: 44px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-card);
  background: var(--c-bg);
  color: var(--c-text);
  text-decoration: none;
  max-width: 46%;
  transition: border-color var(--transition), transform var(--transition);
}

.article-nav__prev:hover,
.article-nav__next:hover {
  border-color: var(--c-mint);
  transform: translateY(-1px);
  color: var(--c-text);
}

.article-nav__next {
  text-align: right;
  align-items: flex-end;
}

.article-nav__label {
  font-size: 0.78rem;
  color: var(--c-mint-deep);
  font-weight: 600;
}

.article-nav__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-dark);
  line-height: 1.35;
}

.article-nav__empty {
  max-width: 46%;
}

/* ===== 关于页 ===== */
.about-header {
  position: relative;
  background: linear-gradient(135deg, var(--c-dark) 0%, #1e3530 100%);
  padding: 5rem 3rem 4rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.about-header__deco {
  position: absolute;
  top: 0;
  right: 0;
  pointer-events: none;
}

.about-deco-word {
  display: block;
  font-size: clamp(5rem, 15vw, 14rem);
  font-weight: 700;
  color: rgba(92,198,176,0.06);
  line-height: 1;
  padding: 1rem;
}

.about-header__text {
  position: relative;
  z-index: 1;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-header__h1 {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--c-sand-light);
  line-height: 1.2;
}

.about-header__desc {
  font-size: 1rem;
  color: var(--c-sand);
  line-height: 1.7;
}

.about-body {
  padding: 3rem;
  background: var(--c-bg);
  flex: 1;
}

.about-body__content {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-text);
}

.about-body__content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--c-dark);
}

.about-body__content p {
  margin-bottom: 1rem;
}

.about-body__content a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.about-links {
  padding: 2rem 3rem 4rem;
  background: var(--c-bg-warm);
}

.about-links__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.about-link-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-card);
  background: var(--c-bg);
  color: var(--c-dark);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.about-link-card:hover {
  border-color: var(--c-mint);
  background: rgba(92,198,176,0.08);
  color: var(--c-mint-deep);
  transform: translateY(-1px);
}

/* ===== 隐私政策页 ===== */
.privacy-header {
  position: relative;
  background: linear-gradient(135deg, var(--c-dark) 0%, #1e3530 100%);
  padding: 5rem 3rem 4rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.privacy-header__deco {
  position: absolute;
  top: 0;
  right: 0;
  pointer-events: none;
}

.privacy-deco-word {
  display: block;
  font-size: clamp(5rem, 15vw, 14rem);
  font-weight: 700;
  color: rgba(92,198,176,0.06);
  line-height: 1;
  padding: 1rem;
}

.privacy-header__text {
  position: relative;
  z-index: 1;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.privacy-header__h1 {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--c-sand-light);
  line-height: 1.2;
}

.privacy-header__updated {
  font-size: 0.82rem;
  color: var(--c-sand-dark);
}

.privacy-header__desc {
  font-size: 1rem;
  color: var(--c-sand);
  line-height: 1.7;
}

.privacy-body {
  padding: 3rem;
  background: var(--c-bg);
  flex: 1;
}

.privacy-body__content {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-text);
}

.privacy-body__content h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--c-dark);
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--c-sand);
}

.privacy-body__content p {
  margin-bottom: 1rem;
}

.privacy-body__content a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.privacy-links {
  padding: 2rem 3rem 4rem;
  background: var(--c-bg-warm);
}

.privacy-links__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-dark);
  color: var(--c-sand);
  margin-top: auto;
}

.footer__cta-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2.5rem 2rem;
  background: linear-gradient(90deg, rgba(92,198,176,0.15) 0%, rgba(92,198,176,0.05) 100%);
  border-bottom: 1px solid rgba(92,198,176,0.2);
  flex-wrap: wrap;
}

.footer__cta-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-sand-light);
}

.footer__cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6rem 2rem;
  background: var(--c-mint);
  color: var(--c-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
}

.footer__cta-btn:hover {
  background: var(--c-mint-light);
  color: var(--c-dark);
  transform: translateY(-1px);
}

.footer__bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 1.25rem 2rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
}

.footer__copy {
  color: var(--c-sand-dark);
}

.footer__policy,
.footer__about {
  color: var(--c-sand-dark);
  text-decoration: none;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.25rem;
  transition: color var(--transition);
}

.footer__policy:hover,
.footer__about:hover {
  color: var(--c-mint);
}

/* ===== Scroll Reveal 动效 ===== */
.reveal-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease-out, transform 0.45s ease-out;
}

.reveal-item.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__cta,
  .ch-card,
  .art-item,
  .article-nav__prev,
  .article-nav__next,
  .about-link-card,
  .footer__cta-btn {
    transition: none;
  }
}

/* ===== 移动端断点 ===== */
@media (max-width: 900px) {
  :root {
    --sidebar-w: 200px;
  }

  .sidebar__brand-name {
    font-size: 0.82rem;
  }

  .nav-link {
    font-size: 0.82rem;
    padding: 0.6rem 0.65rem;
  }

  .home-content,
  .channel-content,
  .article-body,
  .about-body,
  .privacy-body {
    padding: 2.5rem 1.75rem;
  }

  .channels-section,
  .articles-section,
  .channel-children,
  .about-links,
  .privacy-links {
    padding: 2rem 1.75rem;
  }

  .channel-hero,
  .article-header,
  .about-header,
  .privacy-header {
    padding: 3rem 1.75rem 2.5rem;
  }

  .article-nav {
    padding: 1.5rem 1.75rem;
  }
}

@media (max-width: 640px) {
  :root {
    --sidebar-w: 0px;
  }

  .site-wrapper {
    flex-direction: column;
  }

  .content-area {
    margin-left: 0;
  }

  .sidebar {
    position: static;
    width: 100%;
    height: auto;
    flex-direction: column;
    padding: 1rem;
    border-right: none;
    border-bottom: 2px solid var(--c-mint-deep);
  }

  .sidebar__brand {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
  }

  .sidebar__nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .nav-link {
    font-size: 0.8rem;
    padding: 0.5rem 0.7rem;
    min-height: 44px;
  }

  .sidebar__contact {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
  }

  .hero {
    min-height: 100svh;
    padding: 3rem 1.5rem;
  }

  .hero__h1 {
    font-size: 1.8rem;
  }

  .home-content,
  .channel-content,
  .article-body,
  .about-body,
  .privacy-body {
    padding: 2rem 1.25rem;
  }

  .channels-section,
  .articles-section,
  .channel-children,
  .about-links,
  .privacy-links {
    padding: 1.5rem 1.25rem;
  }

  .channel-hero,
  .article-header,
  .about-header,
  .privacy-header {
    padding: 2.5rem 1.25rem 2rem;
  }

  .article-nav {
    padding: 1.25rem;
  }

  .article-nav__links {
    flex-direction: column;
  }

  .article-nav__prev,
  .article-nav__next {
    max-width: 100%;
  }

  .ch-card__link {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
  }

  .ch-card__count {
    grid-column: 1;
    grid-row: 3;
    justify-self: start;
  }

  .ch-card__arrow {
    grid-column: 1;
    grid-row: 4;
    text-align: left;
  }

  .child-row__date {
    display: none;
  }

  .footer__cta-block {
    flex-direction: column;
    gap: 1rem;
    padding: 2rem 1.25rem;
  }

  .footer__bar {
    padding: 1rem 1.25rem;
    gap: 0.75rem;
    flex-direction: column;
    text-align: center;
  }

  .about-links__grid,
  .privacy-links__grid {
    flex-direction: column;
  }

  .about-link-card {
    width: 100%;
  }
}