/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --color-bg: #121417;
  --color-bg-alt: #1A1D21;
  --color-card: #1E2228;
  --color-border: #2A2E34;
  --color-text: #F2F4F7;
  --color-text-muted: #A0A5AD;
  --color-text-dim: #6B7078;
  --color-accent: #E8542D;
  --color-accent-bright: #F25C2A;
  --color-neon: #D7FF3F;
  --color-success: #2EA36A;
  --font-primary: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-badge: 999px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.28);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 2px 12px rgba(232, 84, 45, 0.25);
  --spacing-section: 90px;
  --container-max: 1200px;
  --header-height: 68px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-height);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--color-text); text-decoration: none; transition: color 0.2s ease, border-color 0.2s ease; }
a:hover { color: var(--color-accent-bright); }
ul, ol { list-style: none; }
input, button { font-family: inherit; font-size: inherit; }

/* ========== 容器 ========== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ========== Header / 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(20, 23, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: background 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 18px;
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.5px;
  white-space: nowrap;
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 100%;
}

.main-nav ul li { height: 100%; display: flex; align-items: center; }

.main-nav a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
  font-size: 15px;
  color: var(--color-text-muted);
  position: relative;
  transition: color 0.2s;
}

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

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:hover::after,
.main-nav li.active a::after { transform: scaleX(1); }

.main-nav li.active a { color: var(--color-text); font-weight: 600; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  height: 34px;
}

.lang-switch span {
  padding: 0 14px;
  height: 100%;
  display: flex;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: default;
  transition: background 0.2s, color 0.2s;
}

.lang-switch span.active {
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
}

.lang-switch span:not(.active):hover { border-color: var(--color-accent); color: var(--color-text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  transition: background 0.25s, transform 0.15s, box-shadow 0.25s, border-color 0.25s;
  text-decoration: none;
  background: transparent;
  color: var(--color-text);
}

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

.btn-primary:hover {
  background: var(--color-accent-bright);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(242, 92, 42, 0.35);
}

.btn-primary:active { transform: scale(0.98); }

.btn-primary:focus {
  outline: 2px solid rgba(232, 84, 45, 0.5);
  outline-offset: 2px;
}

.btn-lg { padding: 18px 42px; font-size: 17px; border-radius: 8px; }

.btn-sm { padding: 8px 20px; font-size: 14px; }

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

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

.btn-outline:active { transform: scale(0.98); }
.btn-outline:focus { outline: 2px solid rgba(232, 84, 45, 0.3); outline-offset: 2px; }

.header-cta { flex-shrink: 0; }

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 24px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background-color: var(--color-bg);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(18, 20, 23, 0.95) 0%, rgba(18, 20, 23, 0.75) 50%, rgba(18, 20, 23, 0.4) 100%);
  z-index: 1;
}

.hero .container { position: relative; z-index: 2; padding-top: 40px; padding-bottom: 40px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232, 84, 45, 0.12);
  border: 1px solid rgba(232, 84, 45, 0.3);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 20px;
  max-width: 640px;
}

.hero h1 .highlight { color: var(--color-accent); }

.hero-subtitle {
  font-size: 18px;
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.btn-link .arrow { font-size: 14px; transition: transform 0.2s; }
.btn-link:hover .arrow { transform: translateX(3px); }

.hero-stats {
  display: flex;
  gap: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 32px;
}

.stat-item { display: flex; flex-direction: column; gap: 4px; }

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.1;
}

.stat-number .accent { color: var(--color-accent); }

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
}

/* ========== 渠道卖点 ========== */
.steps-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.section-head {
  max-width: 560px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--color-text);
  line-height: 1.25;
}

.section-head p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.step-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(232, 84, 45, 0.5);
}

.step-number {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 48px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
  line-height: 1;
  transition: color 0.2s;
}

.step-card:hover .step-number { color: rgba(232, 84, 45, 0.12); }

.step-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 84, 45, 0.1);
  border-radius: 10px;
  color: var(--color-accent);
  font-size: 22px;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.step-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* 异议解答 */
.objection-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.objection-item {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.objection-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.objection-item h4 .fa {
  color: var(--color-success);
  font-size: 14px;
}

.objection-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ========== 成功数据条 ========== */
.stats-bar {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.stats-bar-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-bar-item { display: flex; flex-direction: column; align-items: center; gap: 6px; }

.stat-bar-value {
  font-size: 42px;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1.1;
}

.stat-bar-value .suffix { font-size: 20px; font-weight: 700; }

.stat-bar-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ========== 线索表单 ========== */
.lead-form-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.lead-form-box {
  max-width: 680px;
  margin: 0 auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.lead-form-box h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--color-text);
}

.lead-form-box p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.lead-form-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.lead-form-row input[type="email"] {
  flex: 1;
  min-width: 260px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 13px 16px;
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.lead-form-row input[type="email"]::placeholder { color: var(--color-text-dim); }

.lead-form-row input[type="email"]:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 84, 45, 0.15);
  outline: none;
}

/* ========== 资讯区 ========== */
.news-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
}

.news-main .section-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--color-text);
}

.news-main .section-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.news-list { border-top: 1px solid var(--color-border); }

.news-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s;
}

.news-item:hover { background: rgba(255, 255, 255, 0.01); }

.news-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}

.news-date { font-size: 13px; color: var(--color-text-dim); font-family: "Helvetica Neue", sans-serif; }

.news-category {
  font-size: 12px;
  color: var(--color-accent);
  background: rgba(232, 84, 45, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.news-item h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }

.news-item h3 a {
  color: var(--color-text);
  transition: color 0.2s;
  display: inline;
}

.news-item h3 a:hover { color: var(--color-accent); }

.news-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 资讯侧栏 */
.news-sidebar { display: flex; flex-direction: column; gap: 32px; }

.sidebar-block { }

.sidebar-block h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-dim);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.hot-tags-list { display: flex; flex-direction: column; gap: 4px; }

.hot-tags-list li { display: flex; justify-content: space-between; align-items: center; padding: 8px 4px; border-radius: 4px; transition: background 0.2s; }

.hot-tags-list li:hover { background: var(--color-card); }

.hot-tags-list a { font-size: 14px; color: var(--color-text-muted); transition: color 0.2s; }

.hot-tags-list a:hover { color: var(--color-accent); }

.hot-tags-list .count { font-size: 13px; color: var(--color-text-dim); font-family: "Helvetica Neue", sans-serif; }

.hot-tags-list li:hover .count { color: var(--color-accent); }

.recommend-list { display: flex; flex-direction: column; gap: 16px; }

.recommend-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  transition: border-color 0.2s, transform 0.2s;
}

.recommend-item:hover { border-color: rgba(232, 84, 45, 0.4); transform: translateX(3px); }

.recommend-thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.recommend-item h5 { font-size: 14px; font-weight: 600; line-height: 1.4; color: var(--color-text); margin-bottom: 4px; }

.recommend-item h5 a { color: inherit; }

.recommend-item h5 a:hover { color: var(--color-accent); }

.recommend-item p { font-size: 12px; color: var(--color-text-dim); line-height: 1.4; }

.sidebar-cta {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: center;
  border-top: 2px solid var(--color-accent);
}

.sidebar-cta h5 { font-size: 16px; font-weight: 700; color: var(--color-text); margin-bottom: 8px; }

.sidebar-cta p { font-size: 13px; color: var(--color-text-muted); margin-bottom: 16px; line-height: 1.6; }

.sidebar-cta .btn { width: 100%; }

/* ========== 隐私说明 ========== */
.privacy-section {
  padding: 60px 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.privacy-content {
  max-width: 860px;
  margin: 0 auto;
}

.privacy-content h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 16px;
}

.privacy-content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* ========== Footer ========== */
.site-footer {
  background: #121417;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .logo-text { font-size: 22px; margin-bottom: 12px; }

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.footer-social a:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-column h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-column ul { display: flex; flex-direction: column; gap: 10px; }

.footer-column a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color 0.2s, padding-left 0.2s;
}

.footer-column a:hover { color: var(--color-accent); padding-left: 4px; }

.footer-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.footer-tags a {
  font-size: 12px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 14px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.footer-tags a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(232, 84, 45, 0.05);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom .copyright {
  font-size: 13px;
  color: var(--color-text-dim);
}

.footer-bottom .copyright .brand { color: var(--color-text); font-weight: 600; }

.footer-bottom .legal-note {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ========== 底部固定转化条 ========== */
.fixed-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(26, 29, 33, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  padding: 14px 0;
  z-index: 999;
  display: flex;
  justify-content: center;
}

.fixed-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  max-width: var(--container-max);
  padding: 0 24px;
}

.fixed-cta-text {
  font-size: 14px;
  color: var(--color-text-muted);
}

.fixed-cta-text strong { color: var(--color-text); }

.fixed-cta-inner .btn { flex-shrink: 0; }

body.home-page { padding-bottom: 80px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-actions .lang-switch { display: none; }
  .header-cta { display: none; }
  .hamburger { display: flex; }

  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid .step-card:last-child { grid-column: span 2; max-width: 50%; margin: 0 auto; }
  .objection-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .news-sidebar { flex-direction: row; flex-wrap: wrap; gap: 24px; }
  .sidebar-block { flex: 1; min-width: 220px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 768px) {
  :root { --spacing-section: 64px; }
  .hero { min-height: 520px; }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 16px; }
  .hero-ctas { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .stat-number { font-size: 26px; }
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid .step-card:last-child { grid-column: auto; max-width: 100%; }
  .objection-grid { grid-template-columns: 1fr; }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-bar-value { font-size: 34px; }
  .lead-form-box { padding: 32px 24px; }
  .news-sidebar { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .fixed-cta-bar { display: none; }
  body.home-page { padding-bottom: 0; }
  .section-head h2 { font-size: 26px; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 28px; }
  .hero-badge { font-size: 11px; padding: 4px 10px; }
  .hero-subtitle { font-size: 15px; }
  .lead-form-row { flex-direction: column; }
  .lead-form-row .btn { width: 100%; }
  .lead-form-row input { min-width: 100%; }
  .news-item h3 { font-size: 16px; }
  .news-meta { flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-tags a { font-size: 12px; padding: 5px 10px; }
  .stats-bar-inner { grid-template-columns: 1fr 1fr; }
  .stat-bar-label { font-size: 12px; }
}

/* ========== 移动端抽屉菜单 ========== */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 24px;
  z-index: 999;
  display: none;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 16px 32px rgba(0,0,0,0.4);
}

.mobile-menu.open { display: flex; animation: menuFadeIn 0.2s ease; }

@keyframes menuFadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-menu a {
  font-size: 18px;
  color: var(--color-text-muted);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s;
}

.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--color-accent); }
.mobile-menu a.active { color: var(--color-accent); font-weight: 600; }
.mobile-menu .mobile-lang { display: flex; gap: 10px; margin-bottom: 8px; }
.mobile-menu .mobile-lang a { border: 1px solid var(--color-border); border-radius: 999px; padding: 6px 20px; font-size: 14px; border-bottom: none; }
.mobile-menu .mobile-lang a.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.mobile-menu .mobile-cta { margin-top: 12px; }

/* 其他细节 */
.badge {
  display: inline-block;
  background: rgba(232, 84, 45, 0.12);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  padding: 4px 10px;
}

/* Focus 可访问性 */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 滚动条样式（Webkit） */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3A3E45; }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --color-bg: #121417;
  --color-bg-alt: #1A1D21;
  --color-card: #1E2228;
  --color-border: #2A2E34;
  --color-text: #F2F4F7;
  --color-text-muted: #A0A5AD;
  --color-text-dim: #6B7078;
  --color-accent: #E8542D;
  --color-accent-bright: #F25C2A;
  --color-neon: #D7FF3F;
  --color-success: #2EA36A;
  --font-primary: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-badge: 999px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.28);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 2px 12px rgba(232, 84, 45, 0.25);
  --spacing-section: 88px;
  --container-max: 1200px;
  --header-height: 68px;
}

/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-height);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
a:hover { color: var(--color-accent-bright); }
input, button { font-family: inherit; font-size: inherit; }
button { cursor: pointer; }
::selection { background: rgba(232, 84, 45, 0.35); color: #fff; }

/* ========== 容器 ========== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.row { max-width: none; margin-right: auto; margin-left: auto; }
.columns { padding-left: 12px; padding-right: 12px; }

/* ========== Header / 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(20, 23, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: background 0.3s ease;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 18px;
}
.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.5px;
  white-space: nowrap;
  line-height: 1;
}
.logo-text .accent { color: var(--color-accent); }
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 100%;
}
.main-nav ul li { height: 100%; display: flex; align-items: center; }
.main-nav a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
  font-size: 15px;
  color: var(--color-text-muted);
  position: relative;
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--color-text); }
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.main-nav a:hover::after,
.main-nav li.active a::after { transform: scaleX(1); }
.main-nav li.active a { color: var(--color-text); font-weight: 600; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  height: 34px;
  transition: border-color 0.2s;
}
.lang-switch:hover { border-color: var(--color-accent); }
.lang-switch span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 12px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1;
}
.lang-switch span.lang-active {
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
}
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 24px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.hamburger:hover { background: var(--color-card); color: var(--color-accent); }
.hamburger:focus { outline: 2px solid rgba(232, 84, 45, 0.5); outline-offset: 2px; }

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(26, 29, 33, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 999;
  padding: 20px 24px 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-lang { margin-bottom: 18px; }
.mobile-nav { margin-bottom: 20px; }
.mobile-nav li a {
  display: block;
  padding: 12px 0;
  font-size: 18px;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s, padding-left 0.2s;
}
.mobile-nav li a:hover { color: var(--color-accent); padding-left: 6px; }
.mobile-nav li:last-child a { border-bottom: none; }
.mobile-nav li.active a { color: var(--color-text); font-weight: 600; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  background: transparent;
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.25s, transform 0.15s, box-shadow 0.25s, border-color 0.25s, color 0.25s;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: var(--color-accent-bright);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(242, 92, 42, 0.35);
}
.btn-primary:active { transform: scale(0.98); }
.btn-primary:focus {
  outline: 2px solid rgba(232, 84, 45, 0.5);
  outline-offset: 2px;
}
.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}
.btn-outline:active { transform: scale(0.98); }
.btn-outline:focus {
  outline: 2px solid rgba(232, 84, 45, 0.3);
  outline-offset: 2px;
}
.btn-lg { padding: 16px 42px; font-size: 16px; border-radius: 8px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }
.header-cta { flex-shrink: 0; }
.btn-load-more { min-width: 220px; padding: 10px 32px; font-size: 15px; }

/* ========== 板块标题 ========== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}
.section-header p {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== 分类页 Hero ========== */
.cat-hero {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  background-color: var(--color-bg);
  overflow: hidden;
  padding: 56px 0;
}
.cat-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.cat-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(18, 20, 23, 0.95) 0%, rgba(18, 20, 23, 0.8) 55%, rgba(18, 20, 23, 0.55) 100%);
  z-index: 1;
}
.cat-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .current { color: var(--color-text); }
.cat-hero h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  max-width: 720px;
  margin-bottom: 14px;
  position: relative;
  padding-left: 18px;
}
.cat-hero h1::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--color-accent);
}
.cat-hero-sub {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 620px;
  margin-bottom: 20px;
}
.cat-hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.cat-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  background: rgba(30, 34, 40, 0.6);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 14px;
  transition: border-color 0.2s;
}
.cat-hero-meta span:hover { border-color: var(--color-accent); }
.cat-hero-meta i { color: var(--color-accent); }

/* ========== 分类标签 ========== */
.cat-tags {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
}
.cat-tags-scroll {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.cat-tags-scroll::-webkit-scrollbar { display: none; }
.tag-pill {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.tag-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.tag-pill:focus {
  outline: 2px solid rgba(232, 84, 45, 0.4);
  outline-offset: 2px;
}
.tag-pill.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow-btn);
}

/* ========== 统计条 ========== */
.stats-strip {
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  position: relative;
  padding: 8px 0;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--color-border);
}
.stat-num {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
}
.stat-num em {
  color: var(--color-accent);
  font-style: normal;
}
.stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ========== 内容列表区 ========== */
.content-section {
  padding: var(--spacing-section) 0;
}
.content-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}
.content-list-header h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
}
.section-tip {
  font-size: 13px;
  color: var(--color-text-dim);
  flex-shrink: 0;
}
.content-list { border-top: 1px solid var(--color-border); }
.content-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s ease;
}
.content-item:hover { background: var(--color-card); }
.content-item-thumb {
  flex-shrink: 0;
  display: block;
  width: 120px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.content-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.content-item:hover .content-item-thumb img { transform: scale(1.02); }
.content-item-body { flex: 1; min-width: 0; }
.content-item-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.content-item-body h3 a { color: var(--color-text); }
.content-item-body h3 a:hover { color: var(--color-accent); }
.content-item-body p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-item-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
  padding: 8px 4px;
  transition: color 0.2s;
}
.content-item-link:hover { color: var(--color-accent); }
.content-item-link span {
  display: inline-block;
  transition: transform 0.2s ease;
}
.content-item-link:hover span { transform: translateX(4px); }
.load-more-wrap {
  text-align: center;
  margin-top: 36px;
}

/* ========== 侧边栏 ========== */
.sidebar { padding-left: 12px; }
.sidebar-block {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-card);
}
.sidebar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.hot-tags-list li + li { border-top: 1px solid var(--color-border); }
.hot-tags-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 4px;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color 0.2s, padding-left 0.2s;
}
.hot-tags-list a:hover {
  color: var(--color-accent);
  padding-left: 8px;
}
.hot-tags-list a span {
  font-size: 13px;
  color: var(--color-text-dim);
  transition: color 0.2s;
}
.hot-tags-list a:hover span { color: var(--color-accent); }
.recommend-list li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.recommend-list li:first-child { padding-top: 0; }
.recommend-list li:last-child { padding-bottom: 0; border-bottom: none; }
.recommend-thumb {
  flex-shrink: 0;
  display: block;
  width: 56px;
  height: 56px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.recommend-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.recommend-thumb:hover img { transform: scale(1.05); }
.recommend-body { flex: 1; min-width: 0; }
.recommend-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}
.recommend-title:hover { color: var(--color-accent); }
.recommend-meta {
  font-size: 12px;
  color: var(--color-text-dim);
}
.sidebar-cta {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.sidebar-cta h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}
.sidebar-cta p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-section) 0;
}
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.accordion {
  background: transparent;
  border: none;
}
.accordion .accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
}
.accordion .accordion-item:last-child { border-bottom: none; }
.accordion .accordion-title {
  background: transparent;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  padding: 20px 40px 20px 4px;
  border: none;
  position: relative;
  transition: color 0.2s;
}
.accordion .accordion-title:hover,
.accordion .accordion-title:focus {
  background: transparent;
  color: var(--color-accent);
}
.accordion .accordion-item.is-active .accordion-title {
  background: transparent;
  color: var(--color-accent);
}
.accordion .accordion-title::after {
  content: '+';
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
  color: var(--color-accent);
  transition: transform 0.2s ease;
}
.accordion .accordion-item.is-active .accordion-title::after {
  content: '−';
  transform: translateY(-50%) rotate(180deg);
}
.accordion .accordion-content {
  background: transparent;
  padding: 0 24px 20px 4px;
  border: none;
  font-size: 15px;
  line-height: 1.7;
}
.accordion .accordion-content p { color: var(--color-text-muted); }

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 80px 0;
  text-align: center;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}
.cta-section h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--color-text);
}
.cta-section p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #121417;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
}
.footer-brand .logo-text { margin-bottom: 14px; font-size: 22px; }
.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 260px;
  margin-bottom: 18px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 14px;
  transition: all 0.2s ease;
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}
.footer-social a:focus {
  outline: 2px solid rgba(232, 84, 45, 0.5);
  outline-offset: 2px;
}
.footer-column h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}
.footer-column ul li + li { margin-top: 10px; }
.footer-column ul li a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color 0.2s;
}
.footer-column ul li a:hover { color: var(--color-accent); }
.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-tags a {
  display: inline-flex;
  padding: 5px 12px;
  font-size: 12px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: all 0.2s ease;
}
.footer-tags a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  flex-wrap: wrap;
}
.copyright {
  font-size: 14px;
  color: var(--color-text-muted);
}
.copyright .brand {
  color: var(--color-text);
  font-weight: 700;
}
.legal-note {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ========== 响应式断点 ========== */
@media (max-width: 1023px) {
  :root { --spacing-section: 64px; }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .hamburger { display: flex; }
  .sidebar {
    padding-left: 0;
    margin-top: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 60px;
    --spacing-section: 56px;
  }
  .cat-hero { min-height: 300px; padding: 40px 0; }
  .cat-hero h1 { font-size: 30px; }
  .stats-grid { gap: 16px; }
  .stat-num { font-size: 28px; }
  .stat-item + .stat-item::before { height: 28px; }
  .content-item {
    flex-wrap: wrap;
    gap: 14px;
    padding: 16px 12px;
  }
  .content-item-thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
  .content-item-body { flex: 1 1 100%; }
  .content-item-body h3 {
    font-size: 17px;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
  .content-item-link { width: 100%; }
  .content-list-header { flex-direction: column; align-items: flex-start; gap: 4px; }
  .cta-section { padding: 56px 0; }
  .cta-section h2 { font-size: 24px; }
}

@media (max-width: 639px) {
  .breadcrumb { font-size: 12px; }
  .breadcrumb a, .breadcrumb span { font-size: 12px; }
  .header-actions { gap: 8px; }
  .lang-switch span { padding: 0 10px; font-size: 12px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand p { max-width: 100%; }
  .cat-hero h1 { font-size: 28px; }
  .cat-hero-meta { gap: 8px; }
  .stats-grid { gap: 8px; }
  .stat-num { font-size: 24px; }
  .section-header h2 { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}