/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --primary: #0E5C4A;
  --primary-dark: #083D33;
  --accent: #C9A063;
  --accent-light: #EAD9B8;
  --bg: #FAF7F2;
  --surface: #FFFFFF;
  --text: #1F2A28;
  --text-body: #4A5A56;
  --radius-card: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 30px -10px rgba(8, 61, 51, 0.12);
  --shadow-lg: 0 24px 60px -20px rgba(8, 61, 51, 0.18);
  --font-head: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ===== Base Reset ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}

/* ===== Layout ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== Desktop Sidebar ===== */
.side-nav {
  position: fixed;
  left: 0;
  top: 0;
  width: 240px;
  height: 100vh;
  background: var(--primary-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 28px 16px 20px;
  z-index: 200;
  transition: transform 0.3s ease;
}
.side-nav .nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}
.side-nav .nav-brand .logo-mark {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 22px;
  color: var(--primary-dark);
  flex-shrink: 0;
}
.side-nav .nav-brand .brand-text {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
}
.side-nav .nav-brand .brand-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.08em;
  margin-top: 2px;
}
.side-nav .nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.side-nav .nav-menu a {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: all 0.25s ease-out;
}
.side-nav .nav-menu a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateX(2px);
}
.side-nav .nav-menu a.active {
  background: rgba(201, 160, 99, 0.14);
  color: var(--accent);
  font-weight: 600;
}
.side-nav .nav-menu a.active::before {
  content: '';
  position: absolute;
  left: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}
.side-nav .nav-copyright {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ===== Mobile Header ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 300;
  height: 64px;
  background: var(--primary-dark);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.mobile-header .mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mobile-header .mobile-brand .logo-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: var(--primary-dark);
}
.mobile-header .mobile-brand span {
  font-weight: 700;
  font-size: 16px;
}
.mobile-header .hamburger-btn {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  transition: background 0.2s;
}
.mobile-header .hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.16);
}
.mobile-header .hamburger-btn svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  z-index: 400;
  padding: 20px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}
.mobile-drawer.open {
  transform: translateX(0);
}
.mobile-drawer .drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
}
.mobile-drawer .drawer-header .drawer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
}
.mobile-drawer .drawer-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  transition: all 0.2s;
}
.mobile-drawer .drawer-close:hover {
  background: var(--primary);
  color: #fff;
}
.mobile-drawer .drawer-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer .drawer-menu a {
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.mobile-drawer .drawer-menu a:hover {
  background: var(--accent-light);
  color: var(--primary);
  transform: translateX(4px);
}
.mobile-drawer .drawer-menu a.active {
  background: var(--primary);
  color: #fff;
}

/* ===== Main Content ===== */
.main-content {
  margin-left: 240px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.main-content > .hero,
.main-content > .section,
.main-content > .cta-band,
.main-content > footer {
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 620px;
  background: linear-gradient(130deg, var(--primary-dark) 0%, var(--primary) 60%, #125f4e 100%);
  overflow: hidden;
  padding: 80px 40px;
  color: #fff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201, 160, 99, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
}
.hero .hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero .hero-left {
  flex: 1;
  max-width: 560px;
}
.hero .hero-left .hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 160, 99, 0.18);
  border: 1px solid rgba(201, 160, 99, 0.3);
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 13px;
  color: var(--accent-light);
  margin-bottom: 24px;
  font-weight: 500;
}
.hero .hero-left .hero-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.hero .hero-left h1 {
  font-size: clamp(2.8rem, 6vw, 4.3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: #fff;
}
.hero .hero-left h1 .highlight {
  color: var(--accent);
  position: relative;
  white-space: nowrap;
}
.hero .hero-left h1 .highlight::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 8px;
  background: rgba(201, 160, 99, 0.25);
  border-radius: 4px;
  z-index: -1;
}
.hero .hero-left .hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 36px;
  max-width: 420px;
}
.hero .hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease-out;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 20px rgba(201, 160, 99, 0.3);
}
.btn-primary:hover {
  background: #d4ae72;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201, 160, 99, 0.4);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
}
.btn-outline:active {
  transform: scale(0.98);
}
.hero .hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero .stat-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero .stat-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(201, 160, 99, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.hero .stat-text .stat-num {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}
.hero .stat-text .stat-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
}
.hero .hero-right {
  flex: 0 0 320px;
  display: flex;
  justify-content: center;
}
.hero .phone-card {
  width: 260px;
  aspect-ratio: 9 / 14;
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  border: 3px solid rgba(255, 255, 255, 0.25);
}
.hero .phone-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero .phone-card .phone-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.6));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
}
.hero .phone-card .hot-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}
.hero .phone-card .play-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.hero .phone-card .play-btn:hover {
  background: var(--accent);
  transform: scale(1.08);
}
.hero .phone-card .play-btn svg {
  width: 20px;
  height: 20px;
  fill: #fff;
  margin-left: 2px;
}
.hero .phone-card .phone-text {
  text-align: center;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}
.hero .scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: floatDown 2s infinite ease-in-out;
}
@keyframes floatDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}
.hero .scroll-hint span {
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 50%;
}

/* ===== Section ===== */
.section {
  padding: 80px 40px;
}
.section .container {
  max-width: 1200px;
  margin: 0 auto;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 12px;
}
.section-header h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
  position: relative;
}
.section-header h2::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 22px;
  background: var(--accent);
  border-radius: 4px;
  margin-right: 12px;
  vertical-align: -2px;
}
.section-header .section-sub {
  color: var(--text-body);
  font-size: 14px;
  max-width: 420px;
  text-align: right;
  line-height: 1.6;
}

/* ===== Spotlight Cards ===== */
.spotlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.spotlight-card {
  background: var(--surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease-out;
  border: 1px solid rgba(201, 160, 99, 0.12);
  display: flex;
  flex-direction: column;
}
.spotlight-card:nth-child(even) {
  transform: translateY(20px);
}
.spotlight-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.spotlight-card:nth-child(even):hover {
  transform: translateY(14px);
  box-shadow: var(--shadow-lg);
}
.spotlight-card .card-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}
.spotlight-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}
.spotlight-card:hover .card-cover img {
  transform: scale(1.06);
}
.spotlight-card .card-cover .duration {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.spotlight-card .card-cover .cover-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease-out;
}
.spotlight-card:hover .cover-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.spotlight-card .cover-play svg {
  width: 18px;
  height: 18px;
  fill: var(--primary);
  margin-left: 2px;
}
.spotlight-card .card-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.spotlight-card .card-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}
.spotlight-card .card-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.spotlight-card .card-tags .tag {
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-light);
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 600;
}
.spotlight-card .card-tags .heat {
  font-size: 12px;
  color: var(--text-body);
  font-weight: 500;
}
.spotlight-card .card-tags .heat strong {
  color: var(--accent);
}

/* ===== Trend Section ===== */
.trend-section {
  background: #F0F5F2;
  padding: 80px 40px;
}
.trend-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}
.trend-scroll::-webkit-scrollbar {
  height: 6px;
}
.trend-scroll::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 6px;
}
.trend-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.trend-card {
  min-width: 260px;
  max-width: 260px;
  background: var(--surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease-out;
  border: 1px solid rgba(201, 160, 99, 0.1);
  flex-shrink: 0;
}
.trend-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.trend-card .trend-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.trend-card .trend-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}
.trend-card:hover .trend-image img {
  transform: scale(1.05);
}
.trend-card .trend-image .rank-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
}
.trend-card .trend-body {
  padding: 16px 18px 18px;
}
.trend-card .trend-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.trend-card .trend-body .trend-desc {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.5;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.trend-card .trend-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-body);
  flex-wrap: wrap;
}
.trend-card .trend-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.trend-card .trend-meta .meta-item svg {
  width: 14px;
  height: 14px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 2;
}
.trend-card .trend-btn {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 20px;
  transition: all 0.2s ease;
}
.trend-card .trend-btn:hover {
  background: var(--accent);
  color: var(--primary-dark);
  transform: scale(1.02);
}

/* ===== News Section ===== */
.news-section {
  background: var(--bg);
  padding: 80px 40px;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: flex;
  align-items: stretch;
  background: var(--surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(201, 160, 99, 0.1);
  transition: all 0.3s ease-out;
}
.news-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.news-item .news-thumb {
  width: 160px;
  min-width: 160px;
  overflow: hidden;
  background: var(--accent-light);
}
.news-item .news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}
.news-item:hover .news-thumb img {
  transform: scale(1.05);
}
.news-item .news-info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.news-item .news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-body);
}
.news-item .news-cat {
  background: var(--accent-light);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 20px;
}
.news-item .news-meta time {
  color: rgba(74, 90, 86, 0.7);
}
.news-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  transition: color 0.2s;
}
.news-item:hover h3 {
  color: var(--primary);
}
.news-item p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item .news-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-item .news-link:hover {
  text-decoration: underline;
}
.news-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  background: rgba(201, 160, 99, 0.08);
  border-radius: var(--radius-card);
  color: var(--text-body);
  font-size: 15px;
}
.news-empty .empty-icon {
  font-size: 40px;
  color: var(--accent);
  margin-bottom: 12px;
}

/* ===== Reviews ===== */
.reviews-section {
  background: #F9F1E3;
  padding: 80px 40px;
  position: relative;
  overflow: hidden;
}
.reviews-section::before {
  content: '“';
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 160px;
  color: rgba(201, 160, 99, 0.3);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.review-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(201, 160, 99, 0.15);
  transition: all 0.3s ease-out;
}
.review-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.review-card .review-user {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.review-card .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}
.review-card .user-info .name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
}
.review-card .user-info .name svg {
  width: 16px;
  height: 16px;
  fill: var(--accent);
}
.review-card .user-info .source {
  font-size: 12px;
  color: var(--text-body);
}
.review-card .stars {
  display: flex;
  gap: 2px;
  margin-bottom: 14px;
}
.review-card .stars svg {
  width: 16px;
  height: 16px;
  fill: var(--accent);
}
.review-card .review-text {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
}

/* ===== CTA Band ===== */
.cta-band {
  padding: 60px 40px;
}
.cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(120deg, var(--accent), #b8905a);
  border-radius: 28px;
  padding: 50px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-inner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25), transparent);
  border-radius: 50%;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(8, 61, 51, 0.8);
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.cta-inner .cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-cta {
  background: var(--primary-dark);
  color: #fff;
  height: 52px;
  padding: 0 40px;
  font-size: 16px;
  box-shadow: 0 8px 24px rgba(8, 61, 51, 0.3);
}
.btn-cta:hover {
  background: #0a5042;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(8, 61, 51, 0.4);
}
.btn-cta:active {
  transform: scale(0.97);
}
.btn-ghost-light {
  background: transparent;
  color: var(--primary-dark);
  border: 2px solid var(--primary-dark);
  height: 52px;
  padding: 0 40px;
  font-size: 16px;
}
.btn-ghost-light:hover {
  background: var(--primary-dark);
  color: var(--accent);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 40px;
  background: var(--bg);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-bottom: 1px solid rgba(8, 61, 51, 0.1);
}
.faq-item:first-child {
  border-top: 1px solid rgba(8, 61, 51, 0.1);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--primary);
}
.faq-item summary .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
  font-weight: 300;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item[open] summary .faq-icon {
  background: var(--accent);
  color: var(--primary-dark);
  transform: rotate(45deg);
}
.faq-item .faq-answer {
  padding: 0 8px 22px;
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 40px 28px;
  margin-top: auto;
}
.footer .footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer .footer-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer .footer-brand .brand-logo .logo-mark {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--primary-dark);
}
.footer .footer-brand .brand-logo span {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}
.footer .footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
}
.footer h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer .footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer .footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s, padding-left 0.2s;
}
.footer .footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer .footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer .footer-contact .contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.footer .footer-contact .contact-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
  flex-shrink: 0;
}
.footer .footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.02em;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .side-nav {
    display: none;
  }
  .mobile-header {
    display: flex;
  }
  .main-content {
    margin-left: 0;
  }
  .hero {
    padding: 60px 24px;
  }
  .hero .hero-inner {
    flex-direction: column;
    gap: 48px;
    text-align: center;
  }
  .hero .hero-left {
    max-width: 100%;
  }
  .hero .hero-left .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .hero .hero-actions {
    justify-content: center;
  }
  .hero .hero-stats {
    justify-content: center;
  }
  .hero .hero-right {
    flex: none;
  }
  .hero .phone-card {
    width: 220px;
    aspect-ratio: 9 / 13;
  }
  .section {
    padding: 60px 24px;
  }
  .trend-section {
    padding: 60px 24px;
  }
  .news-section {
    padding: 60px 24px;
  }
  .reviews-section {
    padding: 60px 24px;
  }
  .faq-section {
    padding: 60px 24px;
  }
  .cta-band {
    padding: 40px 24px;
  }
  .cta-inner {
    padding: 40px 24px;
  }
  .footer {
    padding: 48px 24px 24px;
  }
  .footer .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .review-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-header .section-sub {
    text-align: left;
  }
  .spotlight-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .spotlight-card:nth-child(even) {
    transform: none;
  }
  .spotlight-card:nth-child(even):hover {
    transform: translateY(-6px);
  }
  .trend-card {
    min-width: 220px;
    max-width: 220px;
  }
  .news-item {
    flex-direction: column;
  }
  .news-item .news-thumb {
    width: 100%;
    min-width: 100%;
    aspect-ratio: 16 / 9;
  }
  .news-item .news-info {
    padding: 16px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .cta-inner p {
    font-size: 14px;
  }
  .footer .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
      --primary: #0E5C4A;
      --primary-dark: #083D33;
      --accent: #C9A063;
      --accent-light: #EAD9B8;
      --bg: #FAF7F2;
      --surface: #FFFFFF;
      --text: #1F2A28;
      --text-body: #4A5A56;
      --radius-card: 18px;
      --radius-sm: 10px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 10px 30px -10px rgba(8,61,51,0.12);
      --shadow-lg: 0 24px 60px -20px rgba(8,61,51,0.18);
      --font-head: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font-body); background: var(--bg); color: var(--text-body); line-height: 1.75; -webkit-font-smoothing: antialiased; }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    button, input, select { font-family: inherit; }
    ul, ol { list-style: none; }

    /* ===== Layout ===== */
    .app { display: flex; min-height: 100vh; }

    /* ===== 左侧导航 ===== */
    .sidebar { width: 240px; background: var(--primary-dark); color: #fff; display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 100; }
    .sidebar-inner { display: flex; flex-direction: column; height: 100%; padding: 28px 16px 20px; }
    .brand-logo { display: flex; align-items: center; gap: 12px; padding: 6px 8px 22px; border-bottom: 1px solid rgba(255,255,255,0.1); margin-bottom: 24px; }
    .logo-mark { width: 40px; height: 40px; background: var(--accent); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 20px; color: var(--primary-dark); flex-shrink: 0; }
    .brand-logo .brand-text { font-size: 17px; font-weight: 700; color: #fff; letter-spacing: 0.02em; line-height: 1.3; }
    .nav-menu { display: flex; flex-direction: column; gap: 4px; }
    .nav-menu a { display: flex; align-items: center; padding: 13px 16px; border-radius: 10px; color: rgba(255,255,255,0.72); font-size: 15px; font-weight: 500; transition: all 0.25s ease; border-left: 3px solid transparent; }
    .nav-menu a:hover { background: rgba(255,255,255,0.07); color: #fff; }
    .nav-menu a:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
    .nav-menu a.active { background: rgba(201,160,99,0.14); color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
    .sidebar-footer { margin-top: auto; padding: 16px 8px 6px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 12px; color: rgba(255,255,255,0.45); line-height: 1.6; }

    /* ===== 主内容区 ===== */
    .main { flex: 1; margin-left: 240px; display: flex; flex-direction: column; min-height: 100vh; }

    /* ===== 顶部移动导航 ===== */
    .topbar { display: none; }
    .mobile-drawer { display: none; }

    /* ===== 容器 ===== */
    .container { max-width: 1200px; margin: 0 auto; padding: 0 40px; width: 100%; }

    /* ===== 横幅区 ===== */
    .page-banner { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #106A54 100%); padding: 72px 0 56px; position: relative; overflow: hidden; }
    .page-banner::before { content: ''; position: absolute; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(201,160,99,0.18), transparent 70%); top: -140px; right: -80px; }
    .page-banner::after { content: ''; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.05), transparent 70%); bottom: -90px; left: 15%; }
    .banner-bg { position: absolute; inset: 0; opacity: 0.12; background-image: url('/assets/images/backpic/back-1.webp'); background-size: cover; background-position: center 30%; }
    .banner-inner { position: relative; z-index: 2; }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.55); margin-bottom: 18px; flex-wrap: wrap; }
    .breadcrumb a { color: rgba(255,255,255,0.55); transition: color 0.2s; }
    .breadcrumb a:hover { color: var(--accent); }
    .breadcrumb .sep { opacity: 0.4; }
    .breadcrumb .current { color: rgba(255,255,255,0.85); }
    .page-banner h1 { font-size: clamp(1.8rem, 3.8vw, 2.8rem); font-weight: 800; color: #fff; margin-bottom: 14px; letter-spacing: -0.02em; line-height: 1.25; }
    .page-banner .lead { font-size: 1.05rem; color: rgba(255,255,255,0.82); max-width: 680px; line-height: 1.75; }

    /* ===== 通用板块 ===== */
    .section { padding: 72px 0; }
    .section-alt { background: #F0F5F2; }
    .section-label { display: inline-block; background: var(--accent-light); color: var(--primary-dark); font-size: 13px; font-weight: 700; padding: 4px 16px; border-radius: 20px; letter-spacing: 0.04em; margin-bottom: 14px; }
    .section-title { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 800; color: var(--text); margin-bottom: 12px; letter-spacing: -0.01em; line-height: 1.3; }
    .section-desc { font-size: 1rem; color: var(--text-body); max-width: 620px; margin-bottom: 40px; line-height: 1.7; }

    /* ===== 卡片 ===== */
    .card { background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.3s ease; overflow: hidden; }

    /* ===== 核心入口区 ===== */
    .feature-grid { display: grid; grid-template-columns: 1fr 1fr 300px; gap: 24px; }
    .feature-card { padding: 28px; display: flex; flex-direction: column; border: 1px solid rgba(201,160,99,0.1); }
    .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .feature-img { border-radius: 12px; height: 180px; background-size: cover; background-position: center; margin-bottom: 20px; position: relative; }
    .feature-img .img-tag { position: absolute; top: 12px; left: 12px; background: rgba(8,61,51,0.85); color: var(--accent); font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 16px; }
    .feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
    .feature-card p { font-size: 0.93rem; color: var(--text-body); margin-bottom: 20px; flex-grow: 1; line-height: 1.7; }
    .card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 15px; transition: color 0.2s; }
    .card-link:hover { color: var(--primary-dark); text-decoration: underline; }
    .card-link .arrow { transition: transform 0.2s; }
    .card-link:hover .arrow { transform: translateX(4px); }

    /* ===== 侧栏 ===== */
    .aside-stack { display: flex; flex-direction: column; gap: 24px; }
    .aside-card { background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); padding: 24px; border: 1px solid rgba(201,160,99,0.1); }
    .aside-card h4 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(74,90,86,0.1); }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag { background: var(--accent-light); color: var(--primary-dark); font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 20px; transition: all 0.2s; cursor: pointer; }
    .tag:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }
    .status-item { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; font-size: 14px; color: var(--text-body); border-bottom: 1px dashed rgba(74,90,86,0.12); }
    .status-item:last-child { border-bottom: none; }
    .status-item .value { font-weight: 700; color: var(--primary); }
    .status-item .value.gold { color: var(--accent); }

    /* ===== 按钮 ===== */
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border-radius: 12px; font-size: 15px; font-weight: 600; padding: 12px 28px; border: none; cursor: pointer; transition: all 0.25s ease; }
    .btn:focus-visible { outline: 3px solid rgba(201,160,99,0.4); }
    .btn-primary { background: var(--primary); color: #fff; }
    .btn-primary:hover { background: var(--primary-dark); box-shadow: inset 0 2px 4px rgba(0,0,0,0.15); transform: translateY(-1px); }
    .btn-primary:active { transform: scale(0.98); box-shadow: inset 0 1px 2px rgba(0,0,0,0.2); }
    .btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
    .btn-outline:hover { background: rgba(14,92,74,0.08); transform: translateY(-1px); }
    .btn-outline:active { transform: scale(0.98); }
    .btn-gold { background: linear-gradient(135deg, var(--accent), #A8823F); color: var(--primary-dark); font-weight: 700; box-shadow: 0 2px 12px rgba(201,160,99,0.25); }
    .btn-gold:hover { filter: brightness(1.06); box-shadow: 0 6px 24px rgba(201,160,99,0.35); transform: translateY(-1px); }
    .btn-gold:active { transform: scale(0.98); box-shadow: 0 2px 8px rgba(201,160,99,0.2); }

    /* ===== 场景 ===== */
    .scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .scenario-card { padding: 32px 28px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.3s; border: 1px solid rgba(201,160,99,0.12); }
    .scenario-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .scenario-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; color: var(--primary-dark); }
    .scenario-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
    .scenario-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
    .scenario-card p { font-size: 0.92rem; color: var(--text-body); line-height: 1.7; }

    /* ===== 流程 ===== */
    .steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .step-item { text-align: center; padding: 32px 20px 28px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); position: relative; transition: all 0.3s; border: 1px solid rgba(201,160,99,0.08); }
    .step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
    .step-num { width: 42px; height: 42px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 700; font-size: 18px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; box-shadow: 0 4px 12px rgba(14,92,74,0.25); }
    .step-connector { position: absolute; top: 52px; right: -12px; width: 24px; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); }
    .step-item:last-child .step-connector { display: none; }
    .step-item h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
    .step-item p { font-size: 0.87rem; color: var(--text-body); line-height: 1.65; }

    /* ===== 数据统计 ===== */
    .stats-section { background: var(--primary-dark); padding: 56px 0; position: relative; overflow: hidden; }
    .stats-section::before { content: ''; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(201,160,99,0.12), transparent 70%); bottom: -120px; right: 10%; }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 1; }
    .stat-item { text-align: center; padding: 20px 12px; }
    .stat-num { font-size: 2.6rem; font-weight: 800; color: var(--accent); line-height: 1.2; letter-spacing: -0.02em; }
    .stat-label { font-size: 14px; color: rgba(255,255,255,0.65); margin-top: 8px; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 860px; margin: 0 auto; }
    .faq-item { border-bottom: 1px solid rgba(74,90,86,0.14); }
    .faq-item:first-child { border-top: 1px solid rgba(74,90,86,0.14); }
    .faq-question { display: flex; justify-content: space-between; align-items: center; padding: 22px 4px; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--text); transition: color 0.25s; gap: 16px; background: none; border: none; width: 100%; text-align: left; }
    .faq-question:hover { color: var(--primary); }
    .faq-question:focus-visible { outline: 2px solid rgba(14,92,74,0.4); border-radius: 8px; }
    .faq-question.active { color: var(--primary); }
    .faq-icon { width: 30px; height: 30px; border-radius: 50%; border: 1.5px solid var(--primary); display: flex; align-items: center; justify-content: center; font-size: 16px; transition: all 0.3s; flex-shrink: 0; background: transparent; }
    .faq-icon svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; }
    .faq-question.active .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
    .faq-answer-inner { padding: 0 4px 22px; font-size: 0.95rem; color: var(--text-body); line-height: 1.8; }

    /* ===== CTA ===== */
    .cta-section { padding: 72px 0 88px; }
    .cta-box { background: linear-gradient(135deg, #0A4A3B 0%, var(--primary) 60%, #126B55 100%); border-radius: 24px; padding: 56px 48px; text-align: center; position: relative; overflow: hidden; box-shadow: var(--shadow-lg); }
    .cta-box::before { content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(201,160,99,0.28), transparent 70%); top: -110px; left: -90px; }
    .cta-box::after { content: ''; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(201,160,99,0.15), transparent 70%); bottom: -60px; right: 8%; }
    .cta-box h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; color: #fff; margin-bottom: 14px; position: relative; z-index: 1; line-height: 1.3; }
    .cta-box p { color: rgba(255,255,255,0.8); margin-bottom: 32px; position: relative; z-index: 1; font-size: 1rem; }
    .cta-buttons { display: flex; gap: 16px; justify-content: center; position: relative; z-index: 1; flex-wrap: wrap; }

    /* ===== 页脚 ===== */
    .footer { background: var(--primary-dark); color: rgba(255,255,255,0.65); padding: 56px 0 0; margin-top: auto; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 48px; max-width: 1200px; margin: 0 auto; padding: 0 40px 40px; }
    .footer-brand .brand-logo { border-bottom: none; padding: 0; margin-bottom: 12px; }
    .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.55); margin-top: 4px; }
    .footer h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-links a { font-size: 14px; color: rgba(255,255,255,0.55); transition: color 0.2s; display: inline-block; }
    .footer-links a:hover { color: var(--accent); transform: translateX(2px); }
    .footer-contact { display: flex; flex-direction: column; gap: 14px; }
    .contact-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.55); }
    .contact-item svg { width: 18px; height: 18px; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); text-align: center; padding: 20px 40px; font-size: 13px; color: rgba(255,255,255,0.4); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .sidebar { display: none; }
      .main { margin-left: 0; }
      .topbar { display: flex; align-items: center; justify-content: space-between; padding: 0 20px; height: 64px; background: var(--primary-dark); position: sticky; top: 0; z-index: 200; box-shadow: 0 2px 12px rgba(0,0,0,0.15); }
      .topbar .brand-logo { padding: 0; border-bottom: none; margin: 0; }
      .topbar .brand-logo .brand-text { font-size: 15px; }
      .mobile-menu-toggle { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 10px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); cursor: pointer; color: #fff; transition: all 0.2s; }
      .mobile-menu-toggle:hover { background: rgba(255,255,255,0.15); }
      .mobile-menu-toggle:focus-visible { outline: 2px solid var(--accent); }
      .mobile-drawer { display: block; position: fixed; top: 0; right: -90%; width: 85%; max-width: 320px; height: 100vh; background: var(--primary-dark); z-index: 300; transition: right 0.35s ease; padding: 20px; }
      .mobile-drawer.open { right: 0; }
      .mobile-drawer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
      .drawer-close { width: 38px; height: 38px; border-radius: 50%; border: 1.5px solid rgba(255,255,255,0.3); background: transparent; color: rgba(255,255,255,0.7); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
      .drawer-close:hover { border-color: var(--accent); color: var(--accent); }
      .drawer-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 250; backdrop-filter: blur(2px); }
      .drawer-overlay.active { display: block; }
      .footer-grid { grid-template-columns: 1fr 1fr; padding: 0 24px 32px; gap: 32px; }
      .container { padding: 0 24px; }
    }

    @media (max-width: 768px) {
      .feature-grid { grid-template-columns: 1fr; }
      .scenario-grid { grid-template-columns: 1fr; }
      .steps-wrap { grid-template-columns: 1fr 1fr; gap: 16px; }
      .step-connector { display: none; }
      .stats-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 0 20px 32px; }
      .footer-bottom { padding: 18px 20px; }
      .page-banner { padding: 56px 0 40px; }
      .section { padding: 56px 0; }
      .cta-box { padding: 40px 24px; }
      .cta-buttons { flex-direction: column; align-items: center; }
      .cta-buttons .btn { width: 100%; }
      .stat-num { font-size: 2rem; }
      .section-desc { margin-bottom: 28px; }
    }

    @media (max-width: 520px) {
      .container { padding: 0 16px; }
      .steps-wrap { grid-template-columns: 1fr; }
      .page-banner h1 { font-size: 1.5rem; }
      .page-banner .lead { font-size: 0.95rem; }
      .feature-card { padding: 20px; }
      .scenario-card { padding: 24px 20px; }
      .aside-card { padding: 18px; }
      .section-title { font-size: 1.35rem; }
      .stat-num { font-size: 1.7rem; }
      .stat-label { font-size: 13px; }
      .faq-question { font-size: 0.95rem; padding: 18px 0; }
      .footer-brand p { font-size: 13px; }
      .contact-item { font-size: 13px; }
      .cta-box h2 { font-size: 1.4rem; }
      .cta-box p { font-size: 0.9rem; }
      .btn { width: 100%; }
      .feature-img { height: 160px; }
    }

/* roulang page: article */
:root {
  --primary: #0E5C4A;
  --primary-dark: #083D33;
  --primary-light: #1A7A64;
  --accent: #C9A063;
  --accent-light: #EAD9B8;
  --accent-dark: #A88344;
  --bg: #FAF7F2;
  --surface: #FFFFFF;
  --text: #1F2A28;
  --text-body: #4A5A56;
  --text-muted: #8A9A95;
  --border: #E3ECE8;
  --radius-card: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 30px -10px rgba(8,61,51,0.12);
  --shadow-lg: 0 24px 60px -20px rgba(8,61,51,0.18);
  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-head);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
}

/* ===== 桌面左侧导航 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  background: var(--primary-dark);
  display: flex;
  flex-direction: column;
  z-index: 60;
  color: rgba(255,255,255,0.9);
  transition: transform 0.3s ease;
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 2rem 1.25rem;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  transition: opacity 0.2s;
}
.brand-logo:hover {
  opacity: 0.85;
}
.logo-mark {
  width: 42px;
  height: 42px;
  background: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary-dark);
  flex-shrink: 0;
  letter-spacing: -0.02em;
}
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.nav-menu a {
  display: flex;
  align-items: center;
  padding: 0.72rem 1rem;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.72);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
  position: relative;
}
.nav-menu a:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.nav-menu a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-weight: 600;
}
.nav-menu a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}
.sidebar-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ===== 移动端顶部导航 ===== */
.mobile-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--primary-dark);
  height: 64px;
  display: none;
  align-items: center;
  padding: 0 1.25rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
}
.mobile-header .brand-logo {
  margin-bottom: 0;
  font-size: 1.125rem;
}
.mobile-header .logo-mark {
  width: 34px;
  height: 34px;
  font-size: 1.125rem;
  border-radius: 10px;
}
.hamburger {
  margin-left: auto;
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
}
.hamburger:hover {
  background: rgba(255,255,255,0.08);
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--primary-dark);
  z-index: 210;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  color: rgba(255,255,255,0.9);
}
.mobile-drawer.open {
  transform: translateX(0);
}
.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
}
.drawer-title {
  color: #fff;
  font-weight: 600;
  font-size: 1.125rem;
}
.drawer-close {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.drawer-close:hover {
  background: rgba(255,255,255,0.2);
  transform: rotate(90deg);
}
.drawer-bottom {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ===== 主内容布局 ===== */
.main-wrapper {
  margin-left: 240px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.content-area {
  flex: 1;
  padding: 0 40px;
}
.container {
  max-width: 960px;
  margin: 0 auto;
}
@media (max-width: 1200px) {
  .content-area {
    padding: 0 32px;
  }
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 3rem 0 0.5rem;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--primary);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--accent-dark);
}
.breadcrumb .separator {
  color: var(--border);
  font-size: 0.75rem;
}
.breadcrumb .crumb-current {
  color: var(--text-body);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.breadcrumb .crumb-category {
  color: var(--primary);
  font-weight: 500;
}

/* ===== 文章主体 ===== */
.article-paper {
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  padding: clamp(1.5rem, 4vw, 3.5rem) clamp(1.5rem, 4vw, 3rem);
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}
.article-header {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.article-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -0.015em;
  margin-bottom: 1.25rem;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.meta-category {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.85rem;
  background: var(--accent-light);
  color: var(--primary-dark);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}
.meta-date {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.meta-date svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
}
.meta-source {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-muted);
}

/* ===== 正文排版 ===== */
.article-body {
  max-width: 72ch;
  margin: 0 auto;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-body);
  overflow-wrap: break-word;
}
.article-body h2 {
  font-family: var(--font-head);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--text);
  margin: 2.5rem 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--accent-light);
  letter-spacing: -0.01em;
}
.article-body h3 {
  font-family: var(--font-head);
  font-size: 1.3125rem;
  font-weight: 600;
  color: var(--text);
  margin: 2rem 0 1rem;
}
.article-body h4 {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.75rem 0 0.75rem;
}
.article-body p {
  margin-bottom: 1.5rem;
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(14,92,74,0.3);
  transition: text-decoration-color 0.2s;
}
.article-body a:hover {
  text-decoration-color: var(--primary);
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  padding: 1.1rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.75rem 0;
  font-style: italic;
  color: var(--text);
}
.article-body blockquote p:last-child {
  margin-bottom: 0;
}
.article-body ul,
.article-body ol {
  margin: 1.5rem 0;
  padding-left: 1.75rem;
}
.article-body li {
  margin-bottom: 0.6rem;
}
.article-body ul li::marker {
  color: var(--accent);
}
.article-body ol li::marker {
  color: var(--accent);
  font-weight: 600;
}
.article-body img {
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin: 2rem auto;
  display: block;
  max-width: 100%;
  height: auto;
}
.article-body figure {
  margin: 2rem 0;
}
.article-body figcaption {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-family: var(--font-head);
}
.article-body strong {
  color: var(--text);
  font-weight: 600;
}
.article-body em {
  color: var(--text);
}
.article-body code {
  background: #F0F5F2;
  padding: 0.2em 0.45em;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
}
.article-body pre {
  background: var(--primary-dark);
  color: #E6EDEA;
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.75rem 0;
  font-size: 0.9375rem;
  line-height: 1.7;
}
.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}
.article-body hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.9375rem;
  font-family: var(--font-head);
}
.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  text-align: left;
}
.article-body th {
  background: var(--accent-light);
  color: var(--text);
  font-weight: 600;
}
.article-body tr:nth-child(even) td {
  background: rgba(250,247,242,0.5);
}

/* ===== 标签与分享 ===== */
.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0 0;
  border-top: 1px solid var(--border);
  margin-top: 2.5rem;
  flex-wrap: wrap;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.9rem;
  background: var(--accent-light);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.2s ease;
}
.tag:hover {
  background: var(--accent);
  transform: translateY(-1px);
}
.share {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.share-label {
  margin-right: 0.25rem;
}
.share-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--primary);
  transition: all 0.2s ease;
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.share-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== 相关推荐 ===== */
.related-section {
  margin: 3rem 0 2rem;
}
.related-section .section-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.related-section .section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 4px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.related-card {
  background: var(--surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.related-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  padding: 1rem 1.25rem 0.4rem;
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  flex: 1;
}
.related-date {
  display: block;
  padding: 0 1.25rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ===== 返回入口 ===== */
.article-back {
  display: flex;
  gap: 1rem;
  padding: 1rem 0 3.5rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 48px;
  padding: 0 1.75rem;
  border-radius: 12px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all 0.2s ease;
  border: 1.5px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: rgba(14,92,74,0.08);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-outline:active {
  transform: scale(0.98);
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===== 空状态 ===== */
.article-empty {
  text-align: center;
  padding: 4.5rem 2rem;
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}
.empty-icon {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.article-empty h2 {
  font-size: 1.5rem;
  color: var(--text);
  margin-bottom: 0.75rem;
  font-weight: 700;
}
.article-empty p {
  color: var(--text-body);
  margin-bottom: 2rem;
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 4rem 0 0;
  position: relative;
  margin-top: auto;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px 3rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
}
.footer-brand .brand-logo {
  margin-bottom: 1.25rem;
}
.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  max-width: 30ch;
}
.footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  display: inline-block;
}
.footer-links a:hover {
  color: var(--accent);
  transform: translateX(4px);
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}
.contact-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.5;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
  .mobile-header {
    display: flex;
  }
  .main-wrapper {
    margin-left: 0;
  }
  .content-area {
    padding: 0 20px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
    padding-left: 24px;
    padding-right: 24px;
    gap: 2rem;
  }
}
@media (max-width: 768px) {
  .content-area {
    padding: 0 16px;
  }
  .breadcrumb {
    padding-top: 2rem;
    font-size: 0.8125rem;
  }
  .article-paper {
    padding: 1.25rem 1.25rem 2rem;
    border-radius: 16px;
  }
  .article-header h1 {
    font-size: 1.5rem;
    line-height: 1.4;
  }
  .article-meta {
    gap: 0.75rem;
  }
  .article-body {
    font-size: 1rem;
    line-height: 1.75;
  }
  .article-body h2 {
    font-size: 1.375rem;
  }
  .article-body h3 {
    font-size: 1.1875rem;
  }
  .article-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .share {
    width: 100%;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    padding: 0 20px 2rem;
    gap: 2rem;
  }
  .footer-brand p {
    max-width: none;
  }
  .article-back {
    padding-bottom: 2.5rem;
  }
  .btn {
    flex: 1;
    min-width: 140px;
  }
}
@media (max-width: 480px) {
  .mobile-header {
    padding: 0 1rem;
  }
  .content-area {
    padding: 0 14px;
  }
  .article-paper {
    padding: 1.125rem 1rem 1.75rem;
  }
  .breadcrumb .crumb-current {
    max-width: 140px;
  }
  .btn {
    width: 100%;
  }
  .article-back {
    flex-direction: column;
  }
}