/* ============================================================
   望潮 VISTA - 现代杂志风深度资讯 - 全局样式
   配色：纯白底 + 深蓝灰(#1F2937)主色 + 橙(#F97316)点缀
   字体：Alibaba PuHuiTi
   ============================================================ */

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

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

body {
  font-family: "Alibaba PuHuiTi", "Alibaba PuHuiTi 2.0", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: #374151;
  background-color: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

ul,
ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: #111827;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

/* ---------- 设计令牌 ---------- */
:root {
  /* 主色 - 深蓝灰（杂志感深色，不是亮蓝） */
  --color-primary: #1F2937;
  --primary-50: #F9FAFB;
  --primary-100: #F3F4F6;
  --primary-200: #E5E7EB;
  --primary-300: #D1D5DB;
  --primary-400: #9CA3AF;
  --primary-500: #6B7280;
  --primary-600: #4B5563;
  --primary-700: #374151;
  --primary-800: #1F2937;
  --primary-900: #111827;
  --primary-soft: rgba(31, 41, 55, 0.06);
  --primary-border: rgba(31, 41, 55, 0.12);

  /* 点缀色 - 暖橙 */
  --color-accent: #F97316;
  --accent-500: #F97316;
  --accent-600: #EA580C;
  --accent-700: #C2410C;
  --accent-50: #FFF7ED;
  --accent-100: #FFEDD5;
  --accent-soft: rgba(249, 115, 22, 0.1);
  --accent-border: rgba(249, 115, 22, 0.3);

  /* 文字色 */
  --text-white: #FFFFFF;
  --text-title: #111827;
  --text-primary: #1F2937;
  --text-secondary: #374151;
  --text-tertiary: #6B7280;
  --text-muted: #9CA3AF;
  --text-light: #D1D5DB;

  /* 背景色 */
  --bg-white: #FFFFFF;
  --bg-gray-50: #F9FAFB;
  --bg-gray-100: #F3F4F6;
  --bg-gray-200: #E5E7EB;
  --bg-paper: #FAF9F7;
  --bg-dark: #0F172A;
  --bg-charcoal: #1F2937;

  /* 边框 */
  --border-color: #E5E7EB;
  --border-light: #F3F4F6;
  --border-dark: #D1D5DB;

  /* 阴影 - 克制的杂志感阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.04);

  /* 圆角 - 杂志风偏小圆角 */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 20px;
  --radius-full: 999px;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* 最大宽度 */
  --container-max: 1280px;
  --content-max: 760px;
}

/* ---------- 通用工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}

.accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }

.divider {
  height: 1px;
  background: var(--border-color);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 公告条 ---------- */
.announce-bar {
  background: var(--bg-charcoal);
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  letter-spacing: 0.5px;
}

.announce-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
}

.announce-bar a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.announce-bar a:hover {
  color: var(--color-accent);
}

.announce-left,
.announce-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.announce-divider {
  width: 1px;
  height: 12px;
  background: rgba(255,255,255,0.15);
}

/* ---------- 头部（杂志风：精简大气） ---------- */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(12px);
  background: rgba(255, 255, 255, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  gap: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.brand-wordmark {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: 2px;
  line-height: 1;
  font-family: "Alibaba PuHuiTi", serif;
}

.brand-wordmark .accent { color: var(--color-accent); }

.brand-tagline {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-top: 4px;
  font-weight: 500;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

/* 头部搜索 */
.header-search {
  flex: 1;
  max-width: 320px;
}

.search-field {
  display: flex;
  width: 100%;
  height: 40px;
  border-bottom: 1px solid var(--border-dark);
  transition: border-color var(--transition-fast);
  background: transparent;
}

.search-field:focus-within {
  border-bottom-color: var(--color-accent);
}

.search-field input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-primary);
  padding: 0 var(--space-2);
}

.search-field input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.search-field button {
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.search-field:focus-within button {
  color: var(--color-accent);
}

.search-field button svg { width: 16px; height: 16px; }

/* 头部动作 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.header-link {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.header-link:hover { color: var(--color-accent); }

.subscribe-btn {
  padding: 8px 20px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  border-radius: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
  letter-spacing: 0.5px;
}

.subscribe-btn:hover {
  background: var(--color-accent);
  color: #FFFFFF;
}

.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
}

.mobile-menu-btn svg { width: 20px; height: 20px; }

/* ---------- 主导航（杂志风：细线分隔） ---------- */
.primary-nav {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-color);
  background: #FFFFFF;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-menu {
  display: flex;
  align-items: center;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 0;
}

.nav-menu::-webkit-scrollbar { display: none; }

.nav-menu li { flex-shrink: 0; }

.nav-menu a {
  display: block;
  padding: 0 var(--space-5);
  height: 52px;
  line-height: 52px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
  letter-spacing: 0.5px;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--text-title);
}

.nav-menu a:hover::after {
  width: 24px;
}

.nav-menu li.active a {
  color: var(--text-title);
  font-weight: 700;
}

.nav-menu li.active a::after {
  width: 24px;
}

.nav-date {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  flex-shrink: 0;
  font-style: italic;
}

/* ---------- 杂志式 Hero Cover ---------- */
.cover-section {
  padding: var(--space-10) 0 var(--space-12);
  background: var(--bg-paper);
  border-bottom: 1px solid var(--border-color);
}

.cover-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-8);
  align-items: stretch;
}

.cover-story {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  background: var(--color-primary);
  color: #fff;
}

.cover-story-image {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  font-weight: 800;
  color: rgba(255,255,255,0.12);
  letter-spacing: -2px;
}

.cover-story::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 25%, rgba(0,0,0,0.85) 100%);
  transition: all var(--transition-slow);
}

.cover-story:hover::after {
  background: linear-gradient(180deg, transparent 15%, rgba(0,0,0,0.9) 100%);
}

.cover-story-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8);
  z-index: 2;
}

.cover-kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  position: relative;
  padding-left: 28px;
}

.cover-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 20px;
  height: 1px;
  background: var(--color-accent);
}

.cover-headline {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
}

.cover-dek {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-5);
  max-width: 600px;
  font-weight: 400;
}

.cover-byline {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.cover-byline .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

.cover-byline .author-name { color: rgba(255,255,255,0.9); font-weight: 500; }

/* 副封面列 */
.cover-side {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.cover-side-item {
  display: flex;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cover-side-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.cover-side-item:hover .cover-side-title { color: var(--color-accent); }

.cover-side-thumb {
  width: 120px;
  height: 90px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.cover-side-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.cover-side-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.cover-side-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.4;
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

.cover-side-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: auto;
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

/* ---------- 章节标题（杂志风：双线+衬线感） ---------- */
.section-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section-head .label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-title);
  flex-shrink: 0;
}

.section-head .label .accent { color: var(--color-accent); }

.section-head .line {
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.section-head .more {
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  text-transform: uppercase;
  flex-shrink: 0;
  transition: color var(--transition-fast);
  cursor: pointer;
}

.section-head .more:hover { color: var(--color-accent); }

/* ---------- 主布局 ---------- */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-10);
  padding: var(--space-10) 0 var(--space-16);
}

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

.side-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* ---------- 文章卡片 - 列表型 ---------- */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-5);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.article-card:first-child { padding-top: 0; }

.article-card:hover .article-title { color: var(--color-accent); }

.article-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  position: relative;
}

.article-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background var(--transition-base);
}

.article-card:hover .article-thumb::after {
  background: rgba(0,0,0,0.1);
}

.article-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.article-category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.article-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.4;
  margin-bottom: var(--space-3);
  transition: color var(--transition-fast);
}

.article-excerpt {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-3);
}

.article-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-light);
}

/* ---------- 作者小卡片 ---------- */
.author-mini {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.author-mini .avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
}

.author-mini .name {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---------- 侧栏组件 ---------- */
.widget {
  border-top: 2px solid var(--color-primary);
  padding-top: var(--space-5);
}

.widget-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-title);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.widget-title .accent { color: var(--color-accent); }

/* 热门排行 */
.rank-list { display: flex; flex-direction: column; }

.rank-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.rank-item:last-child { border-bottom: none; padding-bottom: 0; }

.rank-num {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1;
  font-style: italic;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
  transition: all var(--transition-fast);
}

.rank-item:nth-child(1) .rank-num { color: var(--color-accent); font-size: 28px; }
.rank-item:nth-child(2) .rank-num { color: var(--primary-500); font-size: 26px; }
.rank-item:nth-child(3) .rank-num { color: var(--primary-600); font-size: 26px; }

.rank-item:hover .rank-title { color: var(--color-accent); }

.rank-title {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  transition: color var(--transition-fast);
  font-weight: 500;
}

/* 订阅卡片 */
.subscribe-widget {
  background: var(--bg-charcoal);
  color: #fff;
  padding: var(--space-8) var(--space-6);
  position: relative;
  overflow: hidden;
}

.subscribe-widget::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.15;
}

.subscribe-widget-title {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--space-3);
  position: relative;
}

.subscribe-widget-title em {
  color: var(--color-accent);
  font-style: normal;
}

.subscribe-widget-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: var(--space-5);
  position: relative;
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}

.subscribe-form input {
  padding: 12px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  font-size: 13px;
  transition: all var(--transition-fast);
}

.subscribe-form input::placeholder { color: rgba(255,255,255,0.4); }

.subscribe-form input:focus {
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.1);
}

.subscribe-form button {
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.subscribe-form button:hover {
  background: var(--accent-600);
}

.subscribe-note {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  text-align: center;
  margin-top: var(--space-3);
  position: relative;
}

/* 作者专栏 */
.columnist-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.columnist-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-4);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.columnist-card:hover {
  border-color: var(--accent-border);
  background: var(--accent-50);
}

.columnist-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.columnist-info { flex: 1; min-width: 0; }

.columnist-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 2px;
}

.columnist-title {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.columnist-stat {
  font-size: 12px;
  color: var(--text-tertiary);
}

.columnist-stat strong {
  color: var(--color-accent);
  font-weight: 700;
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-item {
  padding: 5px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  cursor: pointer;
  letter-spacing: 0.3px;
}

.tag-item:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.tag-item.hot {
  color: var(--color-accent);
  border-color: var(--accent-border);
  background: var(--accent-50);
}

/* ---------- 瀑布流网格 ---------- */
.masonry-grid {
  columns: 2;
  column-gap: var(--space-6);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-6);
  cursor: pointer;
  transition: transform var(--transition-base);
  background: #fff;
}

.masonry-item:hover .masonry-title { color: var(--color-accent); }

.masonry-thumb {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-4);
  position: relative;
  overflow: hidden;
}

.masonry-item:nth-child(odd) .masonry-thumb { aspect-ratio: 4/3; }
.masonry-item:nth-child(even) .masonry-thumb { aspect-ratio: 3/4; }

.masonry-category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.masonry-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.4;
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

.masonry-excerpt {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.masonry-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

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

.btn-accent:hover {
  background: var(--accent-600);
  color: #fff;
}

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

.btn-dark:hover {
  background: var(--primary-700);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-dark);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-block { width: 100%; }

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: var(--space-10);
}

.pagination a,
.pagination span {
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
}

.pagination a {
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.pagination a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.pagination .current {
  color: var(--text-title);
  font-weight: 700;
  border-bottom: 2px solid var(--color-accent);
}

.pagination .dots { color: var(--text-muted); }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: var(--space-5) 0;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  letter-spacing: 0.5px;
}

.breadcrumb a { color: var(--text-tertiary); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { color: var(--text-light); font-size: 10px; }
.breadcrumb .current { color: var(--text-secondary); }

/* ---------- 页脚（杂志风） ---------- */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.footer-upper {
  padding: var(--space-12) 0 var(--space-8);
  border-bottom: 1px solid var(--border-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: var(--space-8);
}

.footer-brand-col p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.8;
  margin: var(--space-5) 0;
  max-width: 320px;
}

.footer-brand-col .brand-wordmark { font-size: 20px; }

.footer-socials {
  display: flex;
  gap: var(--space-3);
}

.footer-socials a {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
}

.footer-socials a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer-socials svg { width: 14px; height: 14px; }

.footer-col h5 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-title);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-color);
}

.footer-col ul li {
  margin-bottom: var(--space-3);
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-lower {
  padding: var(--space-5) 0;
  font-size: 12px;
  color: var(--text-muted);
}

.footer-lower-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-links-row {
  display: flex;
  gap: var(--space-5);
}

.footer-links-row a { color: var(--text-muted); }
.footer-links-row a:hover { color: var(--color-accent); }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 999;
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.1);
}

.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
}

.back-top svg { width: 14px; height: 14px; }

/* ---------- 揭示动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 滚动条 - 细的杂志风 ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-gray-50); }
::-webkit-scrollbar-thumb { background: var(--primary-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .container { max-width: 960px; }
  .main-layout { grid-template-columns: 1fr; gap: var(--space-8); }
  .side-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    order: 2;
  }
  .cover-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand-col { grid-column: 1 / -1; }
}

@media (max-width: 992px) {
  .container { max-width: 720px; padding: 0 18px; }
  .header-inner { flex-wrap: wrap; gap: var(--space-3); }
  .header-search { order: 3; max-width: 100%; flex-basis: 100%; }
  .cover-headline { font-size: 28px; }
  .article-card { grid-template-columns: 180px 1fr; gap: var(--space-4); }
  .article-title { font-size: 17px; }
  .masonry-grid { columns: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

@media (max-width: 768px) {
  body { font-size: 14px; }
  .announce-bar { display: none; }
  .brand-wordmark { font-size: 20px; }
  .header-actions .header-link { display: none; }
  .header-actions .subscribe-btn { padding: 6px 14px; font-size: 12px; }
  .mobile-menu-btn { display: flex; }
  .nav-date { display: none; }
  .nav-menu a { padding: 0 var(--space-4); font-size: 13px; height: 46px; line-height: 46px; }
  .cover-section { padding: var(--space-6) 0 var(--space-8); }
  .cover-story-content { padding: var(--space-5); }
  .cover-headline { font-size: 22px; }
  .cover-dek { display: none; }
  .cover-side-title { font-size: 15px; }
  .cover-side-thumb { width: 100px; height: 75px; font-size: 11px; }
  .main-layout { padding: var(--space-6) 0 var(--space-10); }
  .section-head .label { font-size: 12px; letter-spacing: 2px; }
  .article-card { grid-template-columns: 1fr; gap: var(--space-3); padding: var(--space-5) 0; }
  .article-thumb { aspect-ratio: 16/10; }
  .article-title { font-size: 17px; }
  .side-col { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-lower-inner { flex-direction: column; text-align: center; gap: var(--space-3); }
  .footer-links-row { justify-content: center; flex-wrap: wrap; }
  .back-top { right: 16px; bottom: 16px; width: 36px; height: 36px; }
}