/* ============================================
   Ribbon Flow — 丝带式信息流
   横向信息丝带 × 圆角长条卡片 × 柔和渐变 × 流动编辑布局
   ============================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

:root {
  --bg-base: #f8f9fc;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f2f7;
  --bg-elevated: #eef0f5;
  --bg-ribbon-1: linear-gradient(135deg, #e8f4f8 0%, #f0f0ff 100%);
  --bg-ribbon-2: linear-gradient(135deg, #fef3e2 0%, #fff0f0 100%);
  --bg-ribbon-3: linear-gradient(135deg, #e8faf0 0%, #f0f8ff 100%);
  --bg-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8888a8;
  --accent-indigo: #5c6bc0;
  --accent-teal: #26a69a;
  --accent-coral: #ef5350;
  --accent-amber: #ffa726;
  --accent-rose: #ec407a;
  --accent-sky: #42a5f5;
  --accent-indigo-soft: rgba(92,107,192,0.1);
  --accent-teal-soft: rgba(38,166,154,0.1);
  --accent-coral-soft: rgba(239,83,80,0.1);
  --accent-amber-soft: rgba(255,167,38,0.1);
  --accent-rose-soft: rgba(236,64,122,0.1);
  --accent-sky-soft: rgba(66,165,245,0.1);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(26,26,46,0.06);
  --shadow-md: 0 4px 20px rgba(26,26,46,0.08);
  --shadow-lg: 0 8px 40px rgba(26,26,46,0.12);
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ===== 导航栏 ===== */
.rf-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(26,26,46,0.06);
}
.rf-nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
}
.rf-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.rf-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-indigo), var(--accent-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 800;
  color: #fff;
}
.rf-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.rf-nav-links a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
  padding: 4px 0;
}
.rf-nav-links a:hover { color: var(--accent-indigo); }
.rf-nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-indigo), var(--accent-teal));
  border-radius: 1px;
  transition: width 0.3s var(--ease-out);
}
.rf-nav-links a:hover::after { width: 100%; }
.rf-nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.rf-search-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  transition: background 0.3s, color 0.3s;
  color: var(--text-muted);
}
.rf-search-btn:hover { background: var(--accent-indigo-soft); color: var(--accent-indigo); }
.rf-search-btn svg { width: 18px; height: 18px; }
.rf-mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.rf-mobile-menu-btn svg { width: 22px; height: 22px; }

/* ===== 搜索覆盖层 ===== */
.rf-search-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(248,249,252,0.85);
  backdrop-filter: blur(16px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 14vh;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.rf-search-overlay.active { opacity: 1; pointer-events: all; }
.rf-search-overlay-inner {
  width: 100%; max-width: 620px;
  background: var(--bg-card);
  border: 1px solid rgba(26,26,46,0.08);
  border-radius: var(--radius-lg);
  padding: 28px; position: relative;
  max-height: 70vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.rf-search-close {
  position: absolute; top: 12px; right: 16px;
  font-size: 24px; background: none; border: none;
  cursor: pointer; color: var(--text-muted); line-height: 1;
}
.rf-search-close:hover { color: var(--text-primary); }
.rf-search-box {
  display: flex; align-items: center; gap: 12px;
  border-bottom: 2px solid rgba(26,26,46,0.06);
  padding-bottom: 16px; margin-bottom: 16px;
}
.rf-search-box svg { width: 20px; height: 20px; color: var(--text-muted); flex-shrink: 0; }
.rf-search-input {
  width: 100%; border: none; outline: none;
  font-size: 16px; font-family: var(--font-body);
  background: transparent; color: var(--text-primary);
}
.rf-search-input::placeholder { color: var(--text-muted); }
.rf-search-results { display: flex; flex-direction: column; gap: 4px; }
.rf-search-result-item {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 8px; border-radius: var(--radius-sm);
  text-decoration: none; color: inherit; transition: background 0.2s;
}
.rf-search-result-item:hover { background: var(--bg-elevated); }
.rf-search-result-thumb {
  width: 56px; height: 40px; border-radius: 6px;
  overflow: hidden; flex-shrink: 0; background: var(--bg-elevated);
}
.rf-search-result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.rf-search-result-info { flex: 1; min-width: 0; }
.rf-search-result-cat {
  font-size: 10px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--accent-indigo); margin-bottom: 2px;
}
.rf-search-result-title {
  font-size: 13px; line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.rf-search-empty { text-align: center; padding: 24px; color: var(--text-muted); font-size: 14px; }

/* ===== Hero 全宽横幅 ===== */
.rf-hero {
  position: relative;
  width: 100%;
  min-height: 480px;
  background: var(--bg-hero);
  overflow: hidden;
}
.rf-hero-bg {
  position: absolute; inset: 0;
}
.rf-hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.4;
  transition: transform 8s ease;
}
.rf-hero:hover .rf-hero-bg img { transform: scale(1.03); }
.rf-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,52,96,0.95) 0%, rgba(26,26,46,0.5) 50%, rgba(26,26,46,0.2) 100%);
}
.rf-hero-content {
  position: relative; z-index: 2;
  max-width: 1440px; margin: 0 auto;
  padding: 80px 40px 60px;
  display: flex; flex-direction: column; justify-content: flex-end;
  min-height: 480px;
}
.rf-hero-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: #fff;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  padding: 6px 14px; border-radius: 20px;
  margin-bottom: 20px; width: fit-content;
}
.rf-hero-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -0.5px;
  color: #fff;
  max-width: 800px;
  margin-bottom: 16px;
}
.rf-hero-excerpt {
  font-size: 16px; line-height: 1.7;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin-bottom: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rf-hero-meta {
  font-size: 13px; color: rgba(255,255,255,0.5);
  display: flex; align-items: center; gap: 16px;
}
.rf-hero-meta span { display: flex; align-items: center; gap: 6px; }
.rf-hero-meta svg { width: 14px; height: 14px; }
.rf-hero-link {
  position: absolute; inset: 0; z-index: 3;
}

/* ===== 丝带区通用 ===== */
.rf-ribbon {
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.rf-ribbon--alt-1 { background: var(--bg-ribbon-1); }
.rf-ribbon--alt-2 { background: var(--bg-ribbon-2); }
.rf-ribbon--alt-3 { background: var(--bg-ribbon-3); }

.rf-ribbon-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}
.rf-ribbon-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
}
.rf-ribbon-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.rf-ribbon--alt-1 .rf-ribbon-label { color: var(--accent-indigo); }
.rf-ribbon--alt-2 .rf-ribbon-label { color: var(--accent-coral); }
.rf-ribbon--alt-3 .rf-ribbon-label { color: var(--accent-teal); }
.rf-ribbon--default .rf-ribbon-label { color: var(--accent-indigo); }

.rf-ribbon-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.3px;
}
.rf-ribbon-more {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent-indigo);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s var(--ease-out);
  flex-shrink: 0;
}
.rf-ribbon-more:hover { gap: 12px; }
.rf-ribbon-more svg { width: 14px; height: 14px; }

/* ===== 横向滚动卡片流 ===== */
.rf-scroll-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: rgba(26,26,46,0.12) transparent;
}
.rf-scroll-track::-webkit-scrollbar { height: 4px; }
.rf-scroll-track::-webkit-scrollbar-track { background: transparent; }
.rf-scroll-track::-webkit-scrollbar-thumb { background: rgba(26,26,46,0.12); border-radius: 2px; }

/* ===== 圆角长条卡片 ===== */
.rf-card {
  flex-shrink: 0;
  width: 340px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s;
  scroll-snap-align: start;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.rf-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.rf-card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}
.rf-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.rf-card:hover .rf-card-img img { transform: scale(1.06); }
.rf-card-img-overlay {
  position: absolute; top: 12px; left: 12px;
}
.rf-card-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 12px;
  backdrop-filter: blur(8px);
}
.rf-card-tag--indigo { background: var(--accent-indigo-soft); color: var(--accent-indigo); }
.rf-card-tag--teal { background: var(--accent-teal-soft); color: var(--accent-teal); }
.rf-card-tag--coral { background: var(--accent-coral-soft); color: var(--accent-coral); }
.rf-card-tag--amber { background: var(--accent-amber-soft); color: var(--accent-amber); }
.rf-card-tag--rose { background: var(--accent-rose-soft); color: var(--accent-rose); }
.rf-card-tag--sky { background: var(--accent-sky-soft); color: var(--accent-sky); }

.rf-card-body {
  padding: 20px;
}
.rf-card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.2px;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rf-card-excerpt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.rf-card-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}
.rf-card-meta svg { width: 12px; height: 12px; }

/* ===== 宽卡片（横向图文交错） ===== */
.rf-card-wide {
  flex-shrink: 0;
  width: 520px;
  display: flex;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s;
  scroll-snap-align: start;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.rf-card-wide:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.rf-card-wide .rf-card-img {
  width: 220px;
  min-height: 180px;
  flex-shrink: 0;
}
.rf-card-wide .rf-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 24px;
}
.rf-card-wide .rf-card-title {
  font-size: 17px;
}

/* ===== 编辑精选 3列 ===== */
.rf-picks {
  max-width: 1440px;
  margin: 0 auto;
  padding: 56px 40px;
}
.rf-picks-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}
.rf-picks-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-rose);
  margin-bottom: 6px;
}
.rf-picks-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.15;
}
.rf-picks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.rf-pick-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.rf-pick-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.rf-pick-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
}
.rf-pick-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.rf-pick-card:hover .rf-pick-card-img img { transform: scale(1.05); }
.rf-pick-card-body {
  padding: 24px;
}
.rf-pick-card-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 12px;
  margin-bottom: 12px;
}
.rf-pick-card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.2px;
  margin-bottom: 10px;
}
.rf-pick-card-excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.rf-pick-card-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}
.rf-pick-card-meta svg { width: 12px; height: 12px; }

/* ===== 数据条 ===== */
.rf-stats {
  max-width: 1440px;
  margin: 0 auto;
  padding: 48px 40px;
}
.rf-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.rf-stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.rf-stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
}
.rf-stat-card--indigo::before { background: linear-gradient(90deg, var(--accent-indigo), var(--accent-sky)); }
.rf-stat-card--teal::before { background: linear-gradient(90deg, var(--accent-teal), #4db6ac); }
.rf-stat-card--coral::before { background: linear-gradient(90deg, var(--accent-coral), var(--accent-amber)); }
.rf-stat-card--amber::before { background: linear-gradient(90deg, var(--accent-amber), #ffca28); }
.rf-stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.rf-stat-number {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}
.rf-stat-number--indigo { color: var(--accent-indigo); }
.rf-stat-number--teal { color: var(--accent-teal); }
.rf-stat-number--coral { color: var(--accent-coral); }
.rf-stat-number--amber { color: var(--accent-amber); }
.rf-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.rf-stat-sub {
  font-size: 11px;
  margin-top: 8px;
  font-weight: 600;
  color: var(--accent-teal);
}

/* ===== 引言区 ===== */
.rf-quote {
  max-width: 1440px;
  margin: 0 auto;
  padding: 64px 40px;
  text-align: center;
  position: relative;
}
.rf-quote::before {
  content: '\201C';
  font-family: var(--font-display);
  font-size: 160px;
  color: rgba(92,107,192,0.06);
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
  pointer-events: none;
}
.rf-quote-text {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 400;
  font-style: italic;
  line-height: 1.5;
  max-width: 800px;
  margin: 0 auto 24px;
  color: var(--text-primary);
}
.rf-quote-author {
  font-size: 13px;
  color: var(--accent-indigo);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
}

/* ===== Footer ===== */
.rf-footer {
  background: var(--text-primary);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 32px;
}
.rf-footer-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}
.rf-footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}
.rf-footer-brand {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.rf-footer-brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-indigo), var(--accent-teal));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-size: 13px; font-weight: 800; color: #fff;
}
.rf-footer-desc {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.4);
  max-width: 300px;
}
.rf-footer-heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.rf-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rf-footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  transition: color 0.3s;
}
.rf-footer-links a:hover { color: #fff; }
.rf-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== 进入动画 ===== */
.rf-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.rf-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.rf-reveal-delay-1 { transition-delay: 0.1s; }
.rf-reveal-delay-2 { transition-delay: 0.2s; }
.rf-reveal-delay-3 { transition-delay: 0.3s; }

/* ===== 文章详情页 ===== */
.rf-article-hero {
  max-width: 1440px;
  margin: 0 auto;
  padding: 48px 40px 32px;
}
.rf-article-hero-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 12px;
  margin-bottom: 20px;
}
.rf-article-hero-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 20px;
  max-width: 720px;
}
.rf-article-hero-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 20px;
}
.rf-article-hero-meta span { display: flex; align-items: center; gap: 6px; }
.rf-article-hero-meta svg { width: 14px; height: 14px; }

.rf-article-cover {
  max-width: 1100px;
  margin: 0 auto 48px;
  padding: 0 40px;
}
.rf-article-cover img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.rf-article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 40px 64px;
}
.rf-article-body p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.rf-article-body p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  float: left;
  line-height: 0.8;
  margin-right: 12px;
  margin-top: 6px;
  color: var(--accent-indigo);
}
.rf-article-body h2 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  margin: 40px 0 16px;
  color: var(--text-primary);
}
.rf-article-body blockquote {
  border-left: 3px solid var(--accent-indigo);
  padding: 16px 0 16px 24px;
  margin: 32px 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  line-height: 1.6;
  color: var(--text-primary);
}

/* 详情页媒体区 */
.rf-article-media {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 48px;
}
.rf-article-media-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 20px;
}
.rf-article-media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.rf-article-media-item {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.rf-article-media-item img {
  width: 100%; height: 200px; object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.rf-article-media-item:hover img { transform: scale(1.04); }

/* 详情页相关推荐 */
.rf-article-related {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 64px;
}
.rf-article-related-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
}
.rf-article-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.rf-related-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
  cursor: pointer;
}
.rf-related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.rf-related-card-img {
  width: 100%;
  height: 160px;
  overflow: hidden;
}
.rf-related-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.rf-related-card:hover .rf-related-card-img img { transform: scale(1.05); }
.rf-related-card-body {
  padding: 16px;
}
.rf-related-card-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.rf-related-card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .rf-picks-grid { grid-template-columns: repeat(2, 1fr); }
  .rf-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .rf-article-related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .rf-nav-inner { padding: 0 20px; }
  .rf-nav-links { display: none; }
  .rf-mobile-menu-btn { display: flex; }
  .rf-hero-content { padding: 60px 20px 40px; min-height: 360px; }
  .rf-hero-title { font-size: 24px; }
  .rf-ribbon-inner { padding: 0 20px; }
  .rf-card { width: 280px; }
  .rf-card-wide { width: 420px; }
  .rf-card-wide .rf-card-img { width: 160px; }
  .rf-picks { padding: 40px 20px; }
  .rf-picks-grid { grid-template-columns: 1fr; }
  .rf-stats { padding: 32px 20px; }
  .rf-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .rf-quote { padding: 48px 20px; }
  .rf-footer-inner { padding: 0 20px; }
  .rf-footer-top { grid-template-columns: 1fr; gap: 32px; }
  .rf-article-hero { padding: 32px 20px 24px; }
  .rf-article-cover { padding: 0 20px; }
  .rf-article-cover img { height: 280px; }
  .rf-article-body { padding: 0 20px 48px; }
  .rf-article-media { padding: 0 20px 32px; }
  .rf-article-media-grid { grid-template-columns: 1fr 1fr; }
  .rf-article-related { padding: 0 20px 48px; }
  .rf-article-related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .rf-stats-grid { grid-template-columns: 1fr; }
  .rf-card { width: 260px; }
  .rf-card-wide { width: 100%; flex-direction: column; }
  .rf-card-wide .rf-card-img { width: 100%; height: 180px; }
  .rf-article-media-grid { grid-template-columns: 1fr; }
}