/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #1f6e5c;
  --color-primary-hover: #185547;
  --color-accent: #e1a158;
  --color-accent-soft: #f6e6d4;
  --color-bg: #f7f5f1;
  --color-surface: #ffffff;
  --color-surface-alt: #efece6;
  --color-border: #e2ddd5;
  --color-text: #24312d;
  --color-text-sub: #63736e;
  --color-text-on-primary: #ffffff;
  --color-link: #1f6e5c;
  --color-link-hover: #185547;
  --shadow-sm: 0 4px 18px rgba(34, 47, 42, 0.06);
  --shadow-md: 0 14px 36px rgba(34, 47, 42, 0.1);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "Microsoft YaHei", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --space-section: 88px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  word-spacing: 0.02em;
}
img { max-width: 100%; height: auto; border-radius: var(--radius-md); animation: imgFade 0.45s ease-out both; }
@keyframes imgFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
h1, h2, h3, h4, h5 { font-family: var(--font-display); line-height: 1.2; margin: 0 0 0.5em; color: var(--color-text); }
p { margin: 0 0 1em; max-width: 42rem; }
a { color: var(--color-link); text-decoration: none; transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease; }
a:visited { color: #5a6f66; }
a:hover { color: var(--color-link-hover); text-decoration: underline; }
ul { padding: 0; margin: 0; list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 3px solid rgba(31, 110, 92, 0.35);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.row { max-width: 75rem; }
.column, .columns { padding-left: 0.875rem; padding-right: 0.875rem; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.6rem 1.4rem;
  border: 1px solid transparent;
  border-radius: 9px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-on-primary);
  background-color: var(--color-primary);
  box-shadow: 0 8px 22px rgba(31, 110, 92, 0.18);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  text-decoration: none;
}
.btn:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-text-on-primary);
  text-decoration: none;
  box-shadow: 0 11px 26px rgba(31, 110, 92, 0.24);
  transform: translateY(-2px);
}
.btn:active {
  transform: scale(0.98) translateY(0);
  box-shadow: 0 4px 12px rgba(31, 110, 92, 0.18);
}
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
  box-shadow: none;
}
.btn-secondary:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: #c9c4ba;
  box-shadow: none;
}
.btn-light {
  background: #fff;
  color: var(--color-primary);
}
.btn-light:hover {
  background: #f0faf6;
  color: var(--color-primary-hover);
}
.btn-sm { min-height: 40px; padding: 0.45rem 1rem; font-size: 0.9rem; }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(247, 245, 241, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.7rem 1.2rem;
  max-width: 75rem;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--color-text); text-decoration: none; }
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
}
.brand:hover .brand-mark { background: var(--color-primary-hover); }
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}
.nav-desktop a.nav-link {
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.96rem;
  transition: background-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}
.nav-desktop a.nav-link:hover { background: var(--color-surface-alt); color: var(--color-primary); }
.nav-desktop a.nav-link.is-active { color: var(--color-primary); background: rgba(31, 110, 92, 0.1); font-weight: 600; }
.header-cta { margin-left: 0.5rem; }
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(247, 245, 241, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.mobile-header .header-inner {
  padding: 0.65rem 1rem;
}
.mobile-icon-link {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--color-text);
}
.mobile-icon-link:hover { background: var(--color-surface-alt); color: var(--color-primary); text-decoration: none; }

/* ===== 移动底部 Tab ===== */
.mobile-tab {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 55;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-border);
  padding: 0.3rem 0.4rem calc(0.3rem + env(safe-area-inset-bottom));
  box-shadow: 0 -6px 24px rgba(34, 47, 42, 0.06);
}
.tab-list {
  display: flex;
  align-items: stretch;
  justify-content: space-around;
}
.tab-item {
  flex: 1;
  max-width: 84px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.18rem;
  padding: 0.25rem 0.1rem;
  border-radius: 12px;
  color: #7a8783;
  font-size: 10px;
  line-height: 1.15;
  transition: color 0.2s ease, background-color 0.2s ease;
  text-decoration: none;
}
.tab-item i { font-size: 1.16rem; line-height: 1; }
.tab-item:hover { background: var(--color-surface-alt); color: var(--color-primary); text-decoration: none; }
.tab-item.is-active { color: var(--color-primary); font-weight: 600; }

/* ===== 页面主体 ===== */
main { padding-top: 70px; }
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--color-surface-alt); }
.section-surface { background: var(--color-surface); }
.section-heading {
  max-width: 46rem;
  margin-bottom: 2.6rem;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  text-transform: uppercase;
  background: rgba(31, 110, 92, 0.09);
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.section-title { font-size: clamp(1.55rem, 3vw, 2.1rem); font-weight: 600; }
.section-desc { color: var(--color-text-sub); font-size: 1.02rem; margin-top: 0.3rem; }

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background-image: url("/assets/images/backpic/back-1.jpg");
  background-position: center 30%;
  background-size: cover;
  padding: 9rem 0 4.5rem;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(19, 34, 29, 0.72), rgba(16, 29, 25, 0.58));
}
.hero-content { position: relative; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.95rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  color: #f6fbf8;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 1.4rem;
}
.hero-content h1 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  max-width: 46rem;
  margin-bottom: 1.15rem;
  text-wrap: balance;
}
.hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.08rem;
  max-width: 38rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; align-items: center; }
.hero-link {
  color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  text-decoration: none;
  padding-bottom: 0.15rem;
}
.hero-link:hover { border-bottom-color: #fff; color: #fff; }
.hero-metrics {
  margin-top: 3.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.metric-item { color: #fff; }
.metric-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.55rem;
  line-height: 1.15;
  font-weight: 700;
}
.metric-item span { color: rgba(255, 255, 255, 0.75); font-size: 0.82rem; }

/* ===== 功能分组 ===== */
.feature-panel .section-heading { margin-bottom: 1rem; }
.feature-sticky { position: sticky; top: 130px; }
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.feature-row {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}
.feature-row:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: #cfc9bf;
}
.feature-icon {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(31, 110, 92, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.feature-body h3 { font-size: 1.12rem; font-weight: 600; margin-bottom: 0.4rem; }
.feature-body p { color: var(--color-text-sub); font-size: 0.95rem; margin-bottom: 0.3rem; max-width: 34rem; }
.feature-more {
  font-size: 0.88rem; color: var(--color-primary); font-weight: 500;
}
.feature-more:hover { color: var(--color-primary-hover); text-decoration: underline; }

/* ===== 场景 ===== */
.scene-area { background-image: url("/assets/images/backpic/back-3.jpg"); background-position: center; background-size: cover; position: relative; }
.scene-area::before { content: ""; position: absolute; inset: 0; background: rgba(36, 48, 44, 0.7); }
.scene-area .row, .scene-area .section-heading, .scene-area .scene-grid { position: relative; }
.scene-area .section-title { color: #fff; }
.scene-area .section-desc { color: rgba(255,255,255,0.78); }
.scene-area .eyebrow { color: #d9ebe4; background: rgba(255,255,255,0.12); }
.scene-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.scene-media { position: relative; aspect-ratio: 16 / 8; overflow: hidden; }
.scene-media img { width: 100%; height: 100%; object-fit: cover; display: block; border-radius: 0; }
.scene-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(19, 32, 28, 0.2)); }
.scene-body { padding: 1.2rem 1.2rem 1.4rem; display: flex; flex-direction: column; row-gap: 0.85rem; }
.scene-body h3 { font-size: 1.05rem; margin-bottom: 0; }
.scene-step-label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  font-weight: 600;
}
.scene-step {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: var(--color-text-sub);
  font-size: 0.92rem;
  line-height: 1.6;
}
.scene-step i { color: var(--color-accent); margin-top: 0.2rem; width: 16px; text-align: center; }

/* ===== 成功案例 ===== */
.case-stats { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 0.6rem; }
.case-stat-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.3rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.case-stat-block:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.case-stat-number { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--color-primary); line-height: 1; letter-spacing: -0.02em; }
.case-stat-desc { font-size: 0.95rem; color: var(--color-text-sub); }
.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.case-card img { border-radius: 0; width: 100%; aspect-ratio: 16/7; object-fit: cover; }
.case-card blockquote {
  margin: 1.2rem 1.4rem 0.4rem;
  padding: 0;
  border: none;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--color-text);
  position: relative;
  font-family: var(--font-body);
}
.case-card blockquote::before {
  content: "\201C";
  color: var(--color-accent);
  font-size: 2rem;
  font-family: Georgia, serif;
  line-height: 0;
  display: block;
  margin-bottom: 0.3rem;
}
.case-source { color: var(--color-text-sub); font-size: 0.84rem; padding: 0 1.4rem 1.3rem; }

/* ===== 内容速览 ===== */
.feed-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.6rem;
  box-shadow: var(--shadow-sm);
}
.feed-list > li + li { border-top: 1px solid var(--color-border); }
.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0.2rem;
  transition: padding-left 0.2s ease;
}
.feed-item:hover { padding-left: 0.4rem; }
.feed-item time {
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 0.25rem;
}
.feed-item h3 { font-size: 1rem; margin-bottom: 0.2rem; font-weight: 600; }
.feed-item p { color: var(--color-text-sub); font-size: 0.9rem; }
.feed-cat { font-size: 0.75rem; color: var(--color-text-sub); }
.recommend-box, .hot-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-sm);
}
.recommend-box h3, .hot-box h3 { font-size: 1rem; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--color-surface-alt);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  color: var(--color-text);
  border: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}
.tag:hover { background: rgba(31,110,92,0.1); border-color: rgba(31,110,92,0.2); color: var(--color-primary); text-decoration: none; }
.tag i { color: var(--color-accent); font-size: 0.7rem; }
.hot-list { margin-top: 0.5rem; }
.hot-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 0.92rem;
}
.hot-list li:last-child { border-bottom: 0; }
.hot-rank {
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== 价格 ===== */
.price-grid { align-items: stretch; }
.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.6rem 1.6rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  height: 100%;
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.price-card.recommended {
  border: 2px solid var(--color-accent);
  box-shadow: 0 16px 36px rgba(225, 161, 88, 0.14);
}
.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #2a2018;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.9rem;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.plan-name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; }
.plan-price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin: 1rem 0 0.2rem;
}
.plan-price strong { font-family: var(--font-display); font-size: 2.35rem; font-weight: 700; color: var(--color-primary); line-height: 1; }
.plan-price span { color: var(--color-text-sub); font-size: 0.9rem; }
.plan-desc { color: var(--color-text-sub); font-size: 0.9rem; padding-bottom: 0.8rem; border-bottom: 1px solid var(--color-border); }
.plan-features { padding: 1.1rem 0 1.2rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.plan-features li { display: flex; gap: 0.55rem; align-items: flex-start; font-size: 0.92rem; color: var(--color-text); }
.plan-features i { color: var(--color-primary); margin-top: 0.3rem; font-size: 0.8rem; width: 16px; text-align: center; }
.price-card .btn { margin-top: auto; }

/* ===== FAQ ===== */
.accordion { background: var(--color-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border); overflow: hidden; }
.accordion-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease, color 0.2s ease;
  cursor: pointer;
}
a.accordion-title:hover { background: var(--color-surface-alt); color: var(--color-text); text-decoration: none; }
.accordion-title::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 0.8rem; color: var(--color-text-sub); transition: transform 0.25s ease; }
.accordion-item.is-active > .accordion-title::after { transform: rotate(180deg); color: var(--color-primary); }
.accordion-content {
  display: none;
  padding: 0.5rem 1.4rem 1.4rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.accordion-item:last-child .accordion-title { border-bottom: 0; }
.accordion-item:last-child.is-active > .accordion-title { border-bottom: 1px solid var(--color-border); }
.accordion-item.is-active > .accordion-content { display: block; }

/* ===== CTA 收尾 ===== */
.cta-zone {
  position: relative;
  background-image: url("/assets/images/backpic/back-2.jpg");
  background-position: center;
  background-size: cover;
  padding: 5rem 0;
}
.cta-zone::before { content: ""; position: absolute; inset: 0; background: rgba(25, 46, 38, 0.82); }
.cta-box { position: relative; max-width: 44rem; margin: 0 auto; text-align: center; }
.cta-box h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cta-box p { color: rgba(255,255,255,0.85); margin: 0.6rem auto 1.7rem; }

/* ===== 页脚 ===== */
.site-footer { background: #1e2925; color: rgba(255,255,255,0.68); padding-top: 4rem; }
.footer-brand { color: #fff; font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; }
.footer-desc { color: rgba(255,255,255,0.58); font-size: 0.92rem; }
.site-footer h3 {
  font-size: 0.85rem;
  color: #fff;
  letter-spacing: 0.05em;
  margin-bottom: 1.1rem;
  font-weight: 600;
}
.footer-links li { margin-bottom: 0.45rem; }
.footer-links a { color: rgba(255,255,255,0.62); font-size: 0.92rem; }
.footer-links a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 3rem;
  padding: 1.2rem 0;
  color: rgba(255,255,255,0.4);
  font-size: 0.88rem;
  text-align: center;
}
.footer-bottom .column { padding-bottom: 0; }

/* ===== 打印与辅助 ===== */
@media print {
  .site-header, .mobile-header, .mobile-tab, .site-footer, .cta-zone { display: none !important; }
  body { background: #fff; }
  main { padding-top: 0; }
  .section { padding: 2rem 0; }
  img { animation: none !important; }
}
.opacity-disabled, .pagination .disabled { opacity: 0.55; pointer-events: none; filter: grayscale(0.3); }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
  .nav-desktop { gap: 0.1rem; }
  .nav-desktop a.nav-link { padding: 0.55rem 0.65rem; }
  .header-cta .btn { padding: 0.6rem 1rem; }
  .case-stats { flex-direction: row; flex-wrap: wrap; }
  .case-stat-block { flex: 1 1 calc(50% - 0.6rem); }
}
@media (max-width: 1024px) {
  :root { --space-section: 68px; }
  .desktop-header { display: none; }
  .mobile-header { display: block; }
  .mobile-tab { display: block; }
  main { padding-top: 60px; padding-bottom: 70px; }
  .hero-section { padding: 6.5rem 0 3.6rem; }
  .feature-sticky { position: relative; top: auto; }
  .scene-card { height: auto; }
}
@media (max-width: 900px) {
  .scene-grid .column { margin-bottom: 1.2rem; }
  .section { padding: 56px 0; }
  .hero-content h1 { font-size: 2.1rem; }
}
@media (max-width: 640px) {
  :root { --space-section: 48px; }
  body { font-size: 15.5px; line-height: 1.7; }
  .mobile-tab { padding-bottom: calc(0.25rem + env(safe-area-inset-bottom)); }
  .tab-item { min-height: 56px; font-size: 9.5px; }
  .hero-section { padding-top: 5.2rem; }
  .hero-content h1 { font-size: 1.72rem; }
  .hero-subtitle { font-size: 0.98rem; }
  .hero-metrics { gap: 1.15rem; }
  .metric-item strong { font-size: 1.35rem; }
  .section-heading { margin-bottom: 1.8rem; }
  .scene-card { margin-bottom: 1.2rem; }
  .case-stats { flex-direction: column; }
  .case-stat-block { flex: auto; }
  .feed-item { flex-direction: column; gap: 0.25rem; }
  .price-card { margin-bottom: 1.1rem; }
  .price-card.recommended { margin-top: 0.7rem; }
  .footer-single-column { margin-bottom: 1.6rem; }
  .accordion-title { padding: 1rem 1rem; font-size: 0.95rem; }
  .accordion-content { padding: 0.4rem 1rem 1.2rem; }
  .btn { min-height: 46px; }
}

/* roulang page: category1 */
/* ===== 设计变量（整站共享） ===== */
        :root {
            --color-primary: #1f6e5c;
            --color-primary-hover: #185547;
            --color-accent: #e1a158;
            --color-accent-soft: #f6e6d4;
            --color-bg: #f7f5f1;
            --color-surface: #ffffff;
            --color-surface-alt: #efece6;
            --color-border: #e2ddd5;
            --color-text: #24312d;
            --color-text-sub: #63736e;
            --color-text-on-primary: #ffffff;
            --color-link: #1f6e5c;
            --color-link-hover: #185547;
            --shadow-sm: 0 4px 18px rgba(34, 47, 42, 0.06);
            --shadow-md: 0 14px 36px rgba(34, 47, 42, 0.1);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "Microsoft YaHei", serif;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --space-section: 88px;
        }
        /* ===== Reset / 基础 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            word-spacing: 0.02em;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            animation: imgFade 0.45s ease-out both;
        }
        @keyframes imgFade {
            0% {
                opacity: 0;
            }
            100% {
                opacity: 1;
            }
        }
        a {
            color: var(--color-link);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }
        a:visited {
            color: #5a6f66;
        }
        a:hover {
            color: var(--color-link-hover);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(31, 110, 92, 0.35);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        .row {
            max-width: 75rem;
        }
        .column,
        .columns {
            padding-left: 0.875rem;
            padding-right: 0.875rem;
            margin-bottom: 1.5rem;
        }
        @media print {
            .site-header,
            .mobile-tab,
            .sidebar-widgets,
            .pagination-block,
            .mobile-header,
            .footer-bottom {
                display: none !important;
            }
            body {
                background: #fff;
            }
        }
        /* ===== 通用按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            min-height: 48px;
            padding: 0.6rem 1.4rem;
            border: 1px solid transparent;
            border-radius: 9px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            color: var(--color-text-on-primary);
            background-color: var(--color-primary);
            box-shadow: 0 8px 22px rgba(31, 110, 92, 0.18);
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
            text-decoration: none;
        }
        .btn:hover {
            background-color: var(--color-primary-hover);
            color: var(--color-text-on-primary);
            text-decoration: none;
            box-shadow: 0 11px 26px rgba(31, 110, 92, 0.24);
            transform: translateY(-2px);
        }
        .btn:active {
            transform: scale(0.98) translateY(0);
            box-shadow: 0 4px 12px rgba(31, 110, 92, 0.18);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-text);
            border-color: var(--color-border);
            box-shadow: none;
        }
        .btn-secondary:hover {
            background: var(--color-surface-alt);
            color: var(--color-text);
            border-color: #c9c4ba;
            box-shadow: none;
        }
        .btn-light {
            background: #fff;
            color: var(--color-primary);
        }
        .btn-light:hover {
            background: #f0faf6;
            color: var(--color-primary-hover);
        }
        .btn-sm {
            min-height: 40px;
            padding: 0.45rem 1rem;
            font-size: 0.9rem;
        }
        /* ===== 顶部导航（桌面端） ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(247, 245, 241, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            padding: 0.7rem 1.2rem;
            max-width: 75rem;
            margin: 0 auto;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-display);
            font-size: 1.32rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            text-decoration: none;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--color-text);
            text-decoration: none;
        }
        .brand-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #fff;
            font-size: 1rem;
            box-shadow: var(--shadow-sm);
        }
        .brand:hover .brand-mark {
            background: var(--color-primary-hover);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        .nav-desktop a.nav-link {
            padding: 0.6rem 0.9rem;
            border-radius: 8px;
            color: var(--color-text);
            font-weight: 500;
            font-size: 0.96rem;
            transition: background-color 0.2s ease, color 0.2s ease;
            text-decoration: none;
        }
        .nav-desktop a.nav-link:hover {
            background: var(--color-surface-alt);
            color: var(--color-primary);
        }
        .nav-desktop a.nav-link.is-active {
            color: var(--color-primary);
            background: rgba(31, 110, 92, 0.1);
            font-weight: 600;
        }
        .header-cta {
            margin-left: 0.5rem;
        }
        /* ===== 移动端精简头部 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(247, 245, 241, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-header .header-inner {
            padding: 0.65rem 1rem;
        }
        .mobile-icon-link {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--color-text);
        }
        .mobile-icon-link:hover {
            background: var(--color-surface-alt);
            color: var(--color-primary);
            text-decoration: none;
        }
        /* ===== 移动底部 Tab ===== */
        .mobile-tab {
            display: none;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 55;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--color-border);
            padding: 0.3rem 0.4rem calc(0.3rem + env(safe-area-inset-bottom));
            box-shadow: 0 -6px 24px rgba(34, 47, 42, 0.06);
        }
        .tab-list {
            display: flex;
            align-items: stretch;
            justify-content: space-around;
        }
        .tab-item {
            flex: 1;
            max-width: 88px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0.18rem;
            padding: 0.3rem 0.1rem;
            border-radius: 12px;
            color: #7a8783;
            font-size: 11px;
            text-decoration: none;
            transition: background-color 0.2s ease, color 0.2s ease;
            border: none;
            background: transparent;
        }
        .tab-item i {
            font-size: 1.15rem;
        }
        .tab-item:hover {
            background: var(--color-surface-alt);
            color: var(--color-primary);
            text-decoration: none;
        }
        .tab-item.is-active {
            color: var(--color-primary);
            font-weight: 600;
        }
        /* ===== 分类页 Banner ===== */
        .category-banner {
            position: relative;
            margin-top: 72px;
            background: linear-gradient(100deg, #1d2c27 0%, #25423a 62%, #2d5347 100%);
            overflow: hidden;
            padding: 3.5rem 0;
        }
        .category-banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.26;
        }
        .category-banner .row {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.74);
            margin-bottom: 1rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            align-items: center;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            border-bottom: 1px solid rgba(255, 255, 255, 0.28);
            transition: color 0.2s ease, border-color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
            text-decoration: none;
        }
        .category-banner h1 {
            font-family: var(--font-display);
            color: #fff;
            font-size: 2.55rem;
            line-height: 1.24;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0 0 1rem 0;
            max-width: 42rem;
        }
        .category-banner h1 span {
            color: var(--color-accent);
        }
        .category-description {
            font-size: 1.04rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 36rem;
            margin: 0 0 1.4rem 0;
        }
        .banner-meta-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
        }
        .banner-meta-badges span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.13);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: #f2f6f4;
            font-size: 0.85rem;
            padding: 0.35rem 0.9rem;
            border-radius: 100px;
            backdrop-filter: blur(6px);
        }
        /* ===== 分类页工具条 / 标签 ===== */
        .category-toolbar-wrap {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            padding: 1.15rem 0;
        }
        .toolbar-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.44rem 1.05rem;
            border-radius: 100px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
            white-space: nowrap;
        }
        .filter-tag:hover {
            background: var(--color-surface-alt);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }
        .filter-tag.is-active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(31, 110, 92, 0.16);
        }
        .toolbar-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .toolbar-search .search-group {
            display: flex;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 100px;
            padding: 0.2rem 0.2rem 0.2rem 0.9rem;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .toolbar-search .search-group:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(31, 110, 92, 0.13);
        }
        .toolbar-search input[type="text"] {
            border: none;
            background: transparent;
            height: 40px;
            font-size: 0.9rem;
            width: 170px;
            outline: none;
            color: var(--color-text);
        }
        .toolbar-search input[type="text"]::placeholder {
            color: #7e8b87;
        }
        .toolbar-search .btn-search {
            min-height: 40px;
            padding: 0 1.1rem;
            border-radius: 100px;
        }
        /* ===== 内容主体：条目列表 + 侧栏 ===== */
        .category-main-wrap {
            padding: 3.2rem 0 4rem 0;
            background: var(--color-bg);
        }
        .results-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.6rem;
        }
        .results-heading h2 {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .results-heading h2 .overline-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }
        .results-count {
            font-size: 0.85rem;
            color: var(--color-text-sub);
            background: var(--color-surface);
            padding: 0.2rem 0.8rem;
            border-radius: 100px;
            border: 1px solid var(--color-border);
        }
        /* ===== 横向条目卡片 ===== */
        .list-card {
            display: flex;
            align-items: flex-start;
            gap: 1.3rem;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1rem;
            margin-bottom: 1.1rem;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.2s ease;
        }
        .list-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #cbd7d1;
        }
        .list-card-cover {
            flex: 0 0 182px;
            width: 182px;
            min-height: 118px;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            background: var(--color-surface-alt);
        }
        .list-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            aspect-ratio: 16 / 10;
        }
        .list-card-cover .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(18, 32, 27, 0.2);
            color: rgba(255, 255, 255, 0.92);
            font-size: 1.5rem;
            opacity: 0;
            transition: opacity 0.2s ease;
        }
        .list-card:hover .play-overlay {
            opacity: 1;
        }
        .list-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 118px;
        }
        .list-card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin: 0 0 0.4rem 0;
            font-family: var(--font-display);
            line-height: 1.4;
            color: var(--color-text);
        }
        .list-card-body h3 a {
            color: var(--color-text);
            transition: color 0.2s ease;
        }
        .list-card-body h3 a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--color-text-sub);
            margin-bottom: 0.3rem;
        }
        .list-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .list-card-meta i {
            font-size: 0.75rem;
            color: var(--color-primary);
        }
        .list-card-excerpt {
            font-size: 0.9rem;
            line-height: 1.65;
            color: var(--color-text-sub);
            margin-bottom: 0.6rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }
        .list-card-tag-group {
            display: flex;
            gap: 0.4rem;
            flex-wrap: wrap;
        }
        .mini-tag {
            font-size: 0.75rem;
            background: var(--color-surface-alt);
            padding: 0.12rem 0.55rem;
            border-radius: 100px;
            color: var(--color-text-sub);
            border: 1px solid var(--color-border);
        }
        .list-card-footer .btn-sm {
            min-height: 34px;
            padding: 0.3rem 0.9rem;
            font-size: 0.8rem;
            background: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
            box-shadow: none;
        }
        .list-card-footer .btn-sm:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
        }
        /* ===== 分页 ===== */
        .pagination-block {
            display: flex;
            justify-content: center;
            padding: 2rem 0 0.6rem 0;
        }
        .pagination {
            display: flex;
            gap: 0.45rem;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 0.7rem;
            border-radius: 10px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-weight: 600;
            font-size: 0.92rem;
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }
        .pagination a:hover {
            background: rgba(31, 110, 92, 0.08);
            border-color: var(--color-primary);
            color: var(--color-primary);
            text-decoration: none;
        }
        .pagination .current-page {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        .pagination .disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }
        .pagination .disabled:hover {
            background: var(--color-surface);
        }
        /* ===== 右侧栏 ===== */
        .sidebar-inner {
            padding-left: 0.5rem;
        }
        .sidebar-widget {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.3rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-sm);
        }
        .widget-title {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 1.1rem 0;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--color-surface-alt);
        }
        .widget-title i {
            color: var(--color-accent);
        }
        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .rank-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            padding: 0.7rem 0;
            border-bottom: 1px dashed var(--color-border);
        }
        .rank-list li:last-child {
            border-bottom: none;
        }
        .rank-num {
            font-family: var(--font-display);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-border);
            min-width: 24px;
            font-variant-numeric: tabular-nums;
            transition: color 0.2s ease;
        }
        .rank-list li:hover .rank-num {
            color: var(--color-accent);
        }
        .rank-num.top {
            color: var(--color-accent);
        }
        .rank-content {
            flex: 1;
        }
        .rank-content a {
            display: block;
            color: var(--color-text);
            font-weight: 600;
            font-size: 0.92rem;
            line-height: 1.45;
            transition: color 0.2s ease;
        }
        .rank-content a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .rank-content .rank-meta {
            font-size: 0.78rem;
            color: var(--color-text-sub);
            margin-top: 0.2rem;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .update-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .update-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            padding: 0.55rem 0;
            border-bottom: 1px dashed var(--color-border);
            font-size: 0.88rem;
        }
        .update-list li:last-child {
            border-bottom: none;
        }
        .update-list .update-ic {
            width: 28px;
            height: 28px;
            flex: 0 0 28px;
            border-radius: 8px;
            background: rgba(31, 110, 92, 0.1);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.72rem;
        }
        .update-list a {
            color: var(--color-text);
            line-height: 1.4;
            font-weight: 500;
            transition: color 0.2s ease;
        }
        .update-list a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .update-list .update-time {
            display: block;
            font-size: 0.75rem;
            color: var(--color-text-sub);
            margin-top: 0.1rem;
        }
        /* ===== FAQ 区块 ===== */
        .section-faq {
            background: var(--color-surface-alt);
            padding: 4rem 0 4.6rem 0;
        }
        .section-heading-row {
            margin-bottom: 2.2rem;
        }
        .section-heading-row .keystone {
            font-size: 0.88rem;
            color: var(--color-primary);
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.3rem;
            display: block;
        }
        .section-heading-row h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0.1rem 0 0.3rem 0;
            letter-spacing: -0.01em;
        }
        .section-heading-row p {
            color: var(--color-text-sub);
            max-width: 680px;
            margin: 0;
        }
        .accordion .accordion-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.2s ease, border-color 0.2s ease;
        }
        .accordion .accordion-item:hover {
            border-color: #cbd7d1;
            box-shadow: var(--shadow-md);
        }
        .accordion .accordion-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            padding: 1rem 1.3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            margin: 0;
            cursor: pointer;
            border-bottom: 1px solid transparent;
            transition: color 0.2s ease, background-color 0.2s ease;
            background: transparent;
        }
        .accordion .accordion-title:hover {
            background: rgba(31, 110, 92, 0.04);
            color: var(--color-primary);
        }
        .accordion .accordion-title[aria-expanded="true"] {
            color: var(--color-primary);
            border-bottom-color: var(--color-border);
        }
        .accordion .accordion-title i {
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: transform 0.2s ease;
        }
        .accordion .accordion-title[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .accordion .accordion-content {
            padding: 1rem 1.3rem 1.2rem 1.3rem;
            color: var(--color-text-sub);
            font-size: 0.94rem;
            line-height: 1.75;
            border-top: 0;
            background: var(--color-surface);
        }
        .accordion .accordion-content .content-widget {
            border: none;
            padding: 0;
            margin: 0;
            box-shadow: none;
        }
        /* ===== CTA 收尾区 ===== */
        .cta-final {
            position: relative;
            background-image: url('/assets/images/backpic/back-5.jpg');
            background-size: cover;
            background-position: center;
            padding: 5rem 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(23, 42, 36, 0.82);
        }
        .cta-final .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-final h2 {
            font-family: var(--font-display);
            font-size: 2.2rem;
            color: #fff;
            margin: 0 0 0.8rem 0;
            line-height: 1.3;
        }
        .cta-final p {
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin: 0 auto 1.8rem auto;
            font-size: 1rem;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: #1e2b27;
            color: rgba(255, 255, 255, 0.72);
            padding: 4rem 0 0 0;
            font-size: 0.92rem;
        }
        .site-footer .row {
            max-width: 75rem;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-top: 0.8rem;
            font-size: 0.88rem;
        }
        .site-footer h3 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.55rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.62);
            transition: color 0.2s ease, padding-left 0.2s ease;
            font-size: 0.9rem;
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 3px;
            text-decoration: none;
        }
        .footer-single-column {
            margin-bottom: 1.8rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 1.4rem;
            padding: 1.2rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.46);
            text-align: center;
        }
        /* ===== 媒体断点：中屏 641～1024 ===== */
        @media screen and (max-width: 1024px) {
            .site-header {
                display: none;
            }
            .mobile-header {
                display: block;
            }
            .mobile-tab {
                display: block;
            }
            body {
                padding-bottom: 68px;
            }
            main {
                margin-top: 58px;
            }
            .category-banner {
                margin-top: 56px;
            }
            .sidebar-inner {
                padding-left: 0;
            }
        }
        /* ===== 媒体断点：小屏 ≤640 ===== */
        @media screen and (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
            body {
                font-size: 15px;
                line-height: 1.7;
            }
            .category-banner {
                padding: 2.2rem 0;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-description {
                font-size: 0.94rem;
            }
            .filter-tags {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 0.4rem;
            }
            .filter-tag {
                white-space: nowrap;
                padding: 0.4rem 0.9rem;
                font-size: 0.82rem;
            }
            .toolbar-row {
                gap: 0.8rem;
            }
            .toolbar-search {
                width: 100%;
            }
            .toolbar-search .search-group {
                flex: 1;
            }
            .toolbar-search input[type="text"] {
                width: 100%;
            }
            .list-card {
                flex-direction: column;
                padding: 0.9rem;
                gap: 0.9rem;
            }
            .list-card-cover {
                width: 100%;
                flex: none;
                max-width: 100%;
            }
            .list-card-cover img {
                aspect-ratio: 16 / 9;
            }
            .list-card-excerpt {
                -webkit-line-clamp: 3;
            }
            .list-card-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .section-faq {
                padding: 3rem 0;
            }
            .section-heading-row h2 {
                font-size: 1.65rem;
            }
            .cta-final {
                padding: 3.4rem 0;
            }
            .cta-final h2 {
                font-size: 1.6rem;
            }
            .pagination a,
            .pagination span {
                min-width: 38px;
                height: 38px;
                font-size: 0.85rem;
            }
        }
        /* ===== 响应式 Tab 增强 ===== */
        @media screen and (min-width: 1025px) {
            .mobile-header,
            .mobile-tab {
                display: none !important;
            }
        }