@import url('https://fonts.googleapis.com/css2?family=Abril+Fatface&family=Merriweather:wght@300;400;700&display=swap');

/* ===== 基础变量 ===== */
:root {
  --c-black: #000000;
  --c-white: #ffffff;
  --c-ink: #000000;
  --c-accent: #c8102e;
  --c-accent-soft: #f5d0d7;
  --c-gray-100: #f5f5f5;
  --c-gray-200: #e8e8e8;
  --c-gray-400: #999999;
  --c-gray-700: #333333;
  --ff-display: 'Abril Fatface', Georgia, serif;
  --ff-body: 'Merriweather', Georgia, serif;
  --ff-ui: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --radius-card: 28px;
  --radius-pill: 999px;
  --nav-h: 64px;
  --base: 8px;
  --grid-cols: 12;
  --grid-gap: 1rem;
  --content-max: 1200px;
  --body-pad: clamp(16px, 4vw, 48px);
  --trans: 0.2s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--c-black);
  background: var(--c-white);
  padding-bottom: calc(var(--nav-h) + 16px);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
ul, menu { list-style: none; }
button, input { font-family: var(--ff-ui); }
table { border-collapse: collapse; width: 100%; }

/* ===== 布局包裹 ===== */
.site-wrapper { display: flex; flex-direction: column; min-height: 100vh; }

/* ===== 网格辅助 ===== */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
}

/* ===== 导航 details/summary ===== */
.nav-details {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--c-black);
  border-top: 2px solid var(--c-accent);
}

.nav-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--body-pad);
  height: var(--nav-h);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.nav-summary::-webkit-details-marker { display: none; }

.nav-brand {
  font-family: var(--ff-display);
  font-size: clamp(14px, 2.5vw, 20px);
  color: var(--c-white);
  letter-spacing: 0.01em;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 12px;
}
.nav-brand:hover { text-decoration: none; opacity: 0.85; }

.nav-toggle-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border: 2px solid var(--c-white);
  border-radius: var(--radius-pill);
  flex-shrink: 0;
}
.nav-toggle-icon {
  display: block;
  width: 18px; height: 2px;
  background: var(--c-white);
  position: relative;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  display: block;
  width: 18px; height: 2px;
  background: var(--c-white);
  position: absolute;
  left: 0;
  transition: transform var(--trans);
}
.nav-toggle-icon::before { top: -5px; }
.nav-toggle-icon::after { top: 5px; }
.nav-details[open] .nav-toggle-icon::before { transform: rotate(45deg) translate(3px, 3px); }
.nav-details[open] .nav-toggle-icon::after { transform: rotate(-45deg) translate(3px, -3px); }

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px var(--body-pad) 16px;
  background: var(--c-black);
  border-top: 1px solid #222;
  max-height: 60vh;
  overflow-y: auto;
}
.nav-menu li { display: block; }

.nav-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  min-height: 40px;
  background: transparent;
  border: 1.5px solid var(--c-white);
  border-radius: var(--radius-pill);
  color: var(--c-white);
  font-family: var(--ff-ui);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: background var(--trans), color var(--trans);
}
.nav-pill:hover,
.nav-pill--active {
  background: var(--c-white);
  color: var(--c-black);
  text-decoration: none;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 20px var(--body-pad) 0;
  font-family: var(--ff-ui);
  font-size: 13px;
  color: var(--c-gray-400);
  max-width: var(--content-max);
  margin: 0 auto;
  width: 100%;
}
.breadcrumb a { color: var(--c-gray-400); }
.breadcrumb a:hover { color: var(--c-black); text-decoration: underline; }
.breadcrumb span { color: var(--c-black); }

/* ===== Hero（首页）===== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  padding: 0;
  background: var(--c-black);
}
.hero-text {
  position: relative;
  z-index: 2;
  padding: clamp(48px, 8vh, 96px) var(--body-pad) clamp(32px, 5vh, 64px);
  text-align: right;
  max-width: var(--content-max);
  margin: 0 auto;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--ff-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 16px;
}
.hero-h1 {
  font-family: var(--ff-display);
  font-size: clamp(32px, 6vw, 80px);
  line-height: 1.1;
  color: var(--c-white);
  margin-bottom: 24px;
  word-break: break-all;
}
.hero-desc {
  font-family: var(--ff-ui);
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.75);
  max-width: 500px;
  margin-left: auto;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* 斜切色带 */
.hero-slash {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 120px;
  background: var(--c-white);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 1;
}
.hero-figure {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-fig-inner {
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 40px,
    rgba(200,16,46,0.08) 40px,
    rgba(200,16,46,0.08) 80px
  );
}

/* ===== 胶囊按钮 ===== */
.btn-capsule {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  min-height: 44px;
  border-radius: var(--radius-pill);
  font-family: var(--ff-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 2px solid var(--c-black);
  background: var(--c-black);
  color: var(--c-white);
  cursor: pointer;
  transition: background var(--trans), color var(--trans), transform var(--trans);
  text-decoration: none;
}
.btn-capsule:hover {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-white);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-capsule--primary {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-white);
}
.btn-capsule--primary:hover {
  background: #a00c24;
  border-color: #a00c24;
}
.btn-capsule--outline {
  background: transparent;
  border-color: var(--c-white);
  color: var(--c-white);
}
.btn-capsule--outline:hover {
  background: var(--c-white);
  color: var(--c-black);
}

/* ===== content-section（两栏：aside 左、正文右）===== */
.content-section {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  max-width: var(--content-max);
  margin: 48px auto;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: start;
}
.content-section--default { margin-top: 32px; }

.content-aside {
  position: sticky;
  top: 16px;
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}
.aside-title {
  font-family: var(--ff-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gray-400);
  margin-bottom: 10px;
}
.aside-title--sec { margin-top: 24px; }

.content-aside hr {
  border: none;
  border-top: 2px solid var(--c-gray-200);
  margin-bottom: 14px;
}

.aside-quick-links li { margin-bottom: 6px; }
.aside-quick-links a {
  font-family: var(--ff-ui);
  font-size: 14px;
  color: var(--c-black);
  display: block;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color var(--trans), color var(--trans);
}
.aside-quick-links a:hover {
  border-bottom-color: var(--c-black);
  text-decoration: none;
  color: var(--c-accent);
}

.content-body {
  min-width: 0;
}
.content-body h1,
.article-h1,
.tag-h1,
.page-h1 {
  font-family: var(--ff-display);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.15;
  margin-bottom: 24px;
}
.content-body h2 {
  font-family: var(--ff-display);
  font-size: clamp(22px, 3vw, 32px);
  margin-top: 40px;
  margin-bottom: 12px;
}
.content-body h3 {
  font-family: var(--ff-ui);
  font-size: 18px;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 10px;
}
.content-body p { margin-bottom: 18px; }
.content-body ul, .content-body ol {
  padding-left: 20px;
  margin-bottom: 18px;
}
.content-body li { margin-bottom: 6px; }
.content-body hr {
  border: none;
  border-top: 3px solid var(--c-black);
  margin: 24px 0;
}
.content-body a {
  color: var(--c-accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--trans);
}
.content-body a:hover { border-bottom-color: var(--c-accent); text-decoration: none; }

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  min-height: 32px;
  border-radius: var(--radius-pill);
  background: var(--c-black);
  color: var(--c-white);
  font-family: var(--ff-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background var(--trans), color var(--trans);
}
.tag-pill:hover {
  background: var(--c-accent);
  text-decoration: none;
}
.tag-pill--active {
  background: var(--c-accent);
}

/* ===== 卡片 ===== */
.card {
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--trans), box-shadow var(--trans);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.card__eyebrow {
  font-family: var(--ff-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.card__title {
  font-family: var(--ff-ui);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}
.card__title a { color: var(--c-black); }
.card__title a:hover { color: var(--c-accent); text-decoration: none; }
.card__desc {
  font-family: var(--ff-ui);
  font-size: 14px;
  color: var(--c-gray-700);
  line-height: 1.6;
  flex: 1;
}
.card__date {
  font-family: var(--ff-ui);
  font-size: 12px;
  color: var(--c-gray-400);
}
.card--topic { border-left: 4px solid var(--c-accent); }
.card--article { border-left: 4px solid var(--c-black); }
.card--value { border-top: 4px solid var(--c-accent); }
.card--related { border-left: 4px solid var(--c-gray-200); }

.link-arrow {
  font-family: var(--ff-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}
.link-arrow::after { content: '→'; }
.link-arrow:hover { text-decoration: none; opacity: 0.8; }

/* ===== article heading ===== */
.section-heading {
  font-family: var(--ff-display);
  font-size: clamp(24px, 3.5vw, 40px);
  margin-bottom: 12px;
}
.section-heading + hr {
  border: none;
  border-top: 3px solid var(--c-black);
  margin-bottom: 32px;
}
article hr {
  border: none;
  border-top: 2px solid var(--c-gray-200);
  margin-bottom: 24px;
}

/* ===== 主页专区/文章网格 ===== */
.topics-section,
.articles-section,
.related-section,
.about-values-section,
.tag-articles-section,
.child-section {
  max-width: var(--content-max);
  margin: 0 auto 64px;
  padding: 0 var(--body-pad);
  width: 100%;
}
.topic-grid,
.article-grid,
.related-grid,
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

/* ===== 页面 Hero（内页）===== */
.page-hero {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: start;
}
.page-hero--topic .topic-aside {
  background: var(--c-black);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}
.page-hero--topic .topic-aside .aside-title { color: rgba(255,255,255,0.5); }
.page-hero--topic .topic-aside hr { border-top-color: #333; }
.page-hero--topic .topic-aside .aside-quick-links a { color: var(--c-white); }
.page-hero--topic .topic-aside .aside-quick-links a:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.topic-h1 {
  font-family: var(--ff-display);
  font-size: clamp(28px, 5vw, 64px);
  line-height: 1.1;
  margin-bottom: 16px;
}
.topic-hero-text { padding-top: 16px; }

/* ===== 日期 ===== */
.page-date, .article-date {
  font-family: var(--ff-ui);
  font-size: 13px;
  color: var(--c-gray-400);
  display: block;
  margin-bottom: 8px;
}
.article-date--mod { font-style: italic; }
.meta-category {
  font-family: var(--ff-ui);
  font-size: 13px;
  color: var(--c-gray-700);
  display: block;
  margin-bottom: 8px;
}
.meta-category a { color: var(--c-accent); }

/* ===== 文章页特定 ===== */
.main-article {
  flex: 1;
}
.article-header-section {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: start;
}
.article-fig {
  min-height: 200px;
  background: var(--c-black);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.article-fig-deco {
  width: 100%; height: 100%; min-height: 200px;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 24px,
    rgba(200,16,46,0.15) 24px,
    rgba(200,16,46,0.15) 48px
  );
}
.article-meta-aside {
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  position: sticky;
  top: 16px;
}
.article-meta-aside hr { border: none; border-top: 2px solid var(--c-gray-200); margin-bottom: 14px; }
.article-meta { display: flex; flex-direction: column; gap: 4px; margin-bottom: 4px; }
.article-body-section {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: start;
}
.content-aside--article {
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  position: sticky;
  top: 16px;
}
.content-aside--article hr { border: none; border-top: 2px solid var(--c-gray-200); margin-bottom: 14px; }
.article-content { padding-top: 0; }

/* ===== About ===== */
.main-about { flex: 1; }
.about-hero-section {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  max-width: var(--content-max);
  margin: 48px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: center;
}
.about-h1 {
  font-family: var(--ff-display);
  font-size: clamp(28px, 5vw, 56px);
  line-height: 1.1;
  margin-bottom: 16px;
}
.about-fig {
  min-height: 260px;
  background: var(--c-black);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.about-fig-deco {
  width: 100%; height: 100%; min-height: 260px;
  background: repeating-linear-gradient(
    -30deg,
    transparent,
    transparent 20px,
    rgba(200,16,46,0.2) 20px,
    rgba(200,16,46,0.2) 40px
  );
}
.aside-address { font-style: normal; }
.aside-address p { font-family: var(--ff-ui); font-size: 13px; color: var(--c-gray-700); margin-bottom: 12px; }

/* ===== Privacy ===== */
.main-privacy { flex: 1; }
.privacy-header-section {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
  max-width: var(--content-max);
  margin: 48px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: center;
}
.privacy-h1 {
  font-family: var(--ff-display);
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.1;
  margin-bottom: 16px;
}
.privacy-fig {
  min-height: 200px;
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.privacy-fig-deco {
  width: 100%; height: 100%; min-height: 200px;
  background: repeating-linear-gradient(
    60deg,
    transparent,
    transparent 16px,
    rgba(0,0,0,0.06) 16px,
    rgba(0,0,0,0.06) 32px
  );
}

/* ===== Tag 页 ===== */
.main-tag { flex: 1; }
.tag-header-section {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding: 0 var(--body-pad);
  width: 100%;
  align-items: start;
}
.tag-aside {
  background: var(--c-black);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}
.tag-aside .aside-title { color: rgba(255,255,255,0.5); }
.tag-aside hr { border: none; border-top: 1px solid #333; margin-bottom: 14px; }
.tag-aside .aside-quick-links a { color: var(--c-white); }
.tag-aside .aside-quick-links a:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.tag-fig {
  min-height: 180px;
  background: var(--c-gray-100);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.tag-fig-deco {
  width: 100%; height: 100%; min-height: 180px;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 20px,
    rgba(200,16,46,0.1) 20px,
    rgba(200,16,46,0.1) 40px
  );
}
.tag-h1 {
  font-family: var(--ff-display);
  font-size: clamp(26px, 4vw, 48px);
  line-height: 1.15;
  margin-bottom: 24px;
}

/* ===== 表格 ===== */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-card);
  border: 2px solid var(--c-black);
}
.child-table {
  width: 100%;
  font-family: var(--ff-ui);
  font-size: 14px;
}
.child-table thead {
  background: var(--c-black);
  color: var(--c-white);
}
.child-table th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.child-table tbody tr {
  border-bottom: 1px solid var(--c-gray-200);
  transition: background var(--trans);
}
.child-table tbody tr:last-child { border-bottom: none; }
.child-table tbody tr:hover { background: var(--c-gray-100); }
.child-table td { padding: 14px 20px; vertical-align: top; }
.ct-title a { color: var(--c-black); font-weight: 600; }
.ct-title a:hover { color: var(--c-accent); text-decoration: none; }
.ct-desc { color: var(--c-gray-700); max-width: 360px; }
.ct-date { white-space: nowrap; color: var(--c-gray-400); font-size: 12px; }

/* ===== 首页 main ===== */
.main-home, .main-inner { flex: 1; }
.page-content-zone {
  margin-top: 120px;
}

/* ===== hr 全局 ===== */
hr { border: none; border-top: 2px solid var(--c-gray-200); }

/* ===== stagger 动效 ===== */
@media (prefers-reduced-motion: no-preference) {
  .stagger-list { --stagger-delay: 0.08s; }
  .stagger-item {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.5s ease forwards;
  }
  .stagger-item:nth-child(1) { animation-delay: calc(var(--stagger-delay) * 0); }
  .stagger-item:nth-child(2) { animation-delay: calc(var(--stagger-delay) * 1); }
  .stagger-item:nth-child(3) { animation-delay: calc(var(--stagger-delay) * 2); }
  .stagger-item:nth-child(4) { animation-delay: calc(var(--stagger-delay) * 3); }
  .stagger-item:nth-child(5) { animation-delay: calc(var(--stagger-delay) * 4); }
  .stagger-item:nth-child(6) { animation-delay: calc(var(--stagger-delay) * 5); }
  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
}
@media (prefers-reduced-motion: reduce) {
  .stagger-item { opacity: 1; transform: none; animation: none; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-black);
  color: var(--c-white);
  padding: 64px var(--body-pad) 0;
  margin-top: auto;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-bottom: 48px;
}
.footer-brand {
  font-family: var(--ff-display);
  font-size: 20px;
  display: block;
  margin-bottom: 12px;
}
.footer-tagline {
  font-family: var(--ff-ui);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  margin-bottom: 20px;
}
.footer-address {
  font-style: normal;
  font-family: var(--ff-ui);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-address a { color: var(--c-accent); }
.footer-address a:hover { text-decoration: underline; }
.footer-col-title {
  display: block;
  font-family: var(--ff-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 14px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a {
  font-family: var(--ff-ui);
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  transition: color var(--trans);
  display: block;
  min-height: 24px;
}
.footer-col ul a:hover { color: var(--c-white); text-decoration: none; }
.footer-subscribe { margin-top: 28px; }
.subscribe-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.subscribe-input {
  flex: 1;
  min-width: 160px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08);
  color: var(--c-white);
  font-size: 14px;
  outline: none;
  transition: border-color var(--trans);
}
.subscribe-input::placeholder { color: rgba(255,255,255,0.35); }
.subscribe-input:focus { border-color: var(--c-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--ff-ui);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-links a { color: rgba(255,255,255,0.4); }
.footer-links a:hover { color: var(--c-white); text-decoration: none; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .content-section,
  .article-body-section {
    grid-template-columns: 1fr;
  }
  .content-aside,
  .content-aside--article {
    position: static;
    order: -1;
  }
  .article-header-section {
    grid-template-columns: 1fr;
  }
  .article-meta-aside { order: -1; position: static; }
  .page-hero {
    grid-template-columns: 1fr;
  }
  .topic-aside { order: -1; }
  .about-hero-section {
    grid-template-columns: 1fr;
  }
  .about-fig { order: -1; min-height: 140px; }
  .about-fig-deco { min-height: 140px; }
  .privacy-header-section {
    grid-template-columns: 1fr;
  }
  .privacy-fig { order: -1; min-height: 120px; }
  .tag-header-section {
    grid-template-columns: 1fr;
  }
  .tag-aside { order: -1; }
  .tag-fig { min-height: 120px; }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer-col--brand { grid-column: span 2; }
}

@media (max-width: 600px) {
  :root { --body-pad: 16px; }
  body { font-size: 16px; }

  .hero-section { min-height: auto; padding-bottom: 80px; }
  .hero-text { text-align: left; padding-top: 48px; }
  .hero-desc { margin-left: 0; }
  .hero-actions { justify-content: flex-start; }
  .hero-slash { height: 80px; }

  .content-section,
  .article-body-section,
  .article-header-section,
  .page-hero,
  .about-hero-section,
  .privacy-header-section,
  .tag-header-section {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 24px;
  }
  .page-content-zone { margin-top: 24px; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-col--brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .topic-grid,
  .article-grid,
  .related-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .nav-menu { gap: 6px; }
  .nav-pill { font-size: 12px; padding: 8px 12px; }
  .nav-brand { font-size: 14px; }

  .child-table { font-size: 13px; }
  .child-table th, .child-table td { padding: 10px 12px; }
  .ct-desc { display: none; }

  .about-hero-section { margin-top: 24px; }
}

@media (max-width: 375px) {
  .hero-h1 { font-size: 26px; }
  .section-heading { font-size: 22px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-input { min-width: auto; }
}