/* roulang page: index */
:root {
  --primary: #0E4D5C;
  --primary-dark: #09323C;
  --accent: #FF8C42;
  --success: #2A9D8F;
  --page-bg: #F6F3EF;
  --card: #FFFFFF;
  --dark: #0B1E24;
  --ink: #1B252C;
  --muted: #5D6A73;
  --border: #E2DDD5;
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(27,37,44,.04);
  --shadow-md: 0 8px 24px rgba(27,37,44,.06);
  --shadow-lg: 0 16px 40px rgba(27,37,44,.10);
  --transition: 0.25s ease;
  --header-h: 76px;
  --section-pad: clamp(64px, 10vw, 112px) 0;
  --container-w: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--page-bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--primary); }

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

ul, ol { list-style: none; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.65);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,.5);
  box-shadow: 0 2px 16px rgba(27,37,44,.04);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.site-header.scrolled {
  background: rgba(255,255,255,.96);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--primary);
  flex-shrink: 0;
}
.brand svg {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}
.brand:hover { color: var(--primary-dark); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(14,77,92,.06);
}
.nav-link.active {
  color: var(--primary);
  background: rgba(14,77,92,.08);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-box {
  position: relative;
  display: none;
}
@media (min-width: 993px) {
  .search-box { display: block; }
}
.search-box input {
  width: 180px;
  height: 40px;
  padding: 0 14px 0 36px;
  background: var(--page-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition), width var(--transition);
}
.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,77,92,.12);
  width: 220px;
}
.search-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--muted);
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active { transform: translateY(0); filter: brightness(.95); }
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: #F27D2C;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255,140,66,.3);
}
.btn-accent:active { transform: translateY(0); filter: brightness(.95); }
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(14,77,92,.04);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,.45);
  color: #fff;
}
.btn-outline-light:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255,255,255,.1);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all var(--transition);
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(246,243,239,.97);
  backdrop-filter: blur(12px);
  z-index: 999;
  padding: 32px 24px;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer a {
  display: block;
  padding: 14px 16px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  border-radius: 10px;
  border-bottom: 1px solid var(--border);
}
.mobile-drawer a:hover { background: rgba(14,77,92,.06); color: var(--primary); }
.mobile-drawer a.active { color: var(--primary); background: rgba(14,77,92,.08); }
.mobile-drawer .drawer-search {
  margin-bottom: 20px;
}
.mobile-drawer .drawer-search input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 48px) 0 56px;
  overflow: hidden;
  text-align: center;
  background: var(--dark) url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,77,92,.92) 0%, rgba(11,30,36,.78) 55%, rgba(11,30,36,.55) 100%);
}
.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-icon-matrix {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 12px;
  margin-bottom: 32px;
}
.matrix-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 22px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  transition: transform var(--transition), background var(--transition);
  min-width: 110px;
}
.matrix-item:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,.14);
}
.matrix-icon {
  font-size: 26px;
  line-height: 1;
}
.matrix-item span:last-child {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,.85);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.hero-status {
  display: flex;
  gap: 0;
  border-radius: 16px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  overflow: hidden;
  padding: 24px 8px;
  width: 100%;
  max-width: 720px;
  justify-content: space-around;
}
.status-item {
  text-align: center;
  padding: 0 12px;
}
.status-num {
  display: block;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  color: var(--accent);
  line-height: 1.3;
}
.status-label {
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
  display: block;
  letter-spacing: 1px;
}

/* 通用板块样式 */
.section {
  padding: var(--section-pad);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-head .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--primary);
  background: rgba(14,77,92,.08);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}

/* 试用权益 */
.benefits {
  padding: var(--section-pad);
  background: var(--card);
}
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.benefit-card {
  background: var(--page-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(14,77,92,.2);
}
.benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(14,77,92,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--primary);
}
.benefit-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--ink);
}
.benefit-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* 功能分组 */
.categories {
  padding: var(--section-pad);
  background: var(--page-bg);
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.cat-card {
  display: flex;
  align-items: stretch;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 220px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(14,77,92,.2);
}
.cat-img {
  width: 40%;
  min-width: 140px;
  overflow: hidden;
  position: relative;
}
.cat-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.cat-card:hover .cat-img img { transform: scale(1.03); }
.cat-body {
  flex: 1;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cat-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}
.cat-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 16px;
}
.cat-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  transition: letter-spacing var(--transition);
}
.cat-card:hover .cat-link { letter-spacing: .5px; }

/* 热门标签滚动条 */
.hot-tags {
  margin-top: 40px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.hot-tags::-webkit-scrollbar { height: 6px; }
.hot-tags::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.tag-list {
  display: flex;
  gap: 10px;
  flex-wrap: nowrap;
}
.tag-list a {
  display: inline-block;
  padding: 8px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  transition: all var(--transition);
}
.tag-list a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(14,77,92,.05);
}

/* 使用场景 */
.scenes {
  padding: var(--section-pad);
  background: var(--card);
}
.scene-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.scene-item {
  position: relative;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}
.scene-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,30,36,.92) 0%, rgba(11,30,36,.6) 50%, rgba(11,30,36,.15) 100%);
  transition: background var(--transition);
}
.scene-item:hover::before {
  background: linear-gradient(90deg, rgba(11,30,36,.96) 0%, rgba(11,30,36,.72) 50%, rgba(11,30,36,.28) 100%);
}
.scene-content {
  position: relative;
  z-index: 2;
  padding: 0 48px;
  max-width: 620px;
}
.scene-content h3 {
  font-size: clamp(20px, 3vw, 28px);
  color: #fff;
  font-weight: 700;
  margin-bottom: 12px;
}
.scene-content p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  line-height: 1.7;
  margin-bottom: 20px;
}
.text-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.text-link:hover {
  color: #FFA466;
  gap: 10px;
}

/* 成功案例 */
.social-proof {
  padding: var(--section-pad);
  background: var(--dark);
  color: #fff;
}
.social-proof .section-head h2 { color: #fff; }
.social-proof .section-head p { color: rgba(255,255,255,.6); }
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.stat-box {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  transition: background var(--transition), transform var(--transition);
}
.stat-box:hover {
  background: rgba(255,255,255,.08);
  transform: translateY(-2px);
}
.stat-box strong {
  display: block;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.stat-box span {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-top: 6px;
  display: block;
  letter-spacing: 1px;
}
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testimonial-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: background var(--transition), transform var(--transition);
}
.testimonial-card:hover {
  background: rgba(255,255,255,.08);
  transform: translateY(-2px);
}
.stars {
  color: var(--accent);
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.testimonial-card p {
  font-size: 14px;
  color: rgba(255,255,255,.8);
  line-height: 1.7;
  margin-bottom: 16px;
}
.user {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  font-weight: 500;
}

/* 资格说明 */
.qualification {
  padding: var(--section-pad);
  background: var(--page-bg);
}
.qual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.qual-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.qual-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.qual-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 16px;
}
.qual-item h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.qual-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* 价格 */
.pricing {
  padding: var(--section-pad);
  background: var(--card);
}
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.price-card {
  background: var(--page-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.price-card.featured {
  border: 2px solid var(--accent);
  background: var(--card);
}
.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(255,140,66,.3);
}
.price-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  text-align: center;
}
.price {
  text-align: center;
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 24px;
}
.price span {
  font-size: 15px;
  font-weight: 400;
  color: var(--muted);
}
.price-card ul {
  flex: 1;
  margin-bottom: 28px;
}
.price-card ul li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(226,221,213,.5);
}
.price-card ul li:last-child { border-bottom: none; }
.price-card ul li::before {
  content: '';
  width: 16px;
  height: 16px;
  background: var(--success);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.price-card ul li::after {
  content: '✓';
  position: absolute;
  left: 0;
}
.price-card ul li {
  position: relative;
  padding-left: 26px;
}
.price-card ul li::before {
  position: absolute;
  left: 0;
  top: 11px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(42,157,143,.15);
}
.price-card ul li::after {
  content: '✓';
  position: absolute;
  left: 4px;
  top: 8px;
  font-size: 10px;
  color: var(--success);
  font-weight: 700;
}

/* 资讯 */
.news {
  padding: var(--section-pad);
  background: var(--page-bg);
}
.news-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.news-item:hover {
  border-color: rgba(14,77,92,.25);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
.news-date {
  font-size: 13px;
  color: var(--muted);
  background: var(--page-bg);
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  flex: 1;
}
.news-item:hover .news-title { color: var(--primary); }
.news-side {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}
.news-side h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--ink);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--page-bg);
  position: relative;
}
.news-side h3::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent);
}
.news-side ul li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(226,221,213,.5);
}
.news-side ul li:last-child { border-bottom: none; }
.news-side ul li a {
  font-size: 14px;
  color: var(--ink);
  display: block;
  line-height: 1.5;
}
.news-side ul li a:hover { color: var(--primary); }

/* 订阅表单 */
.subscribe {
  padding: clamp(48px, 8vw, 80px) 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  text-align: center;
}
.subscribe h2 {
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 700;
  margin-bottom: 10px;
}
.subscribe p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  margin-bottom: 28px;
}
.subscribe-form {
  display: flex;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
}
.subscribe-form input {
  flex: 1;
  height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 15px;
  transition: background var(--transition), border-color var(--transition);
}
.subscribe-form input::placeholder { color: rgba(255,255,255,.6); }
.subscribe-form input:focus {
  background: rgba(255,255,255,.15);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255,140,66,.2);
}

/* FAQ */
.faq {
  padding: var(--section-pad);
  background: var(--card);
}
.faq h2 {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  background: none;
  border: none;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
  margin-left: 16px;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--muted);
  border-radius: 1px;
  transition: transform .35s ease, background .35s ease;
}
.faq-icon::before {
  width: 14px;
  height: 2px;
  top: 11px;
  left: 5px;
}
.faq-icon::after {
  width: 2px;
  height: 14px;
  top: 5px;
  left: 11px;
}
.faq-item.open .faq-icon::before { transform: rotate(45deg); }
.faq-item.open .faq-icon::after { transform: rotate(45deg); }
.faq-item.open .faq-icon::before,
.faq-item.open .faq-icon::after { background: var(--accent); }
.faq-a {
  display: none;
  padding: 0 28px 20px 0;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}
.faq-item.open .faq-a { display: block; }

/* CTA横幅 */
.cta-banner {
  padding: clamp(64px, 10vw, 96px) 0;
  background: var(--dark) url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
  position: relative;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11,30,36,.82);
}
.cta-banner .container {
  position: relative;
  z-index: 2;
}
.cta-banner h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.cta-banner p {
  font-size: 16px;
  color: rgba(255,255,255,.75);
  margin-bottom: 28px;
}

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand h3 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.55);
  padding: 5px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--accent); }
.footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,.45);
  line-height: 1.8;
}
.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.35);
}

/* 滚动渐入 */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式 */
@media (max-width: 1200px) {
  .container { padding: 0 20px; }
}

@media (max-width: 992px) {
  .hero-icon-matrix { grid-template-columns: repeat(2, auto); gap: 10px; }
  .matrix-item { min-width: 130px; padding: 16px 20px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .cat-card { min-height: 200px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .testimonials { grid-template-columns: 1fr; }
  .qual-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .news-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .main-nav { display: none; }
  .header-actions .search-box { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 768px) {
  :root { --section-pad: 56px 0; }
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 32px); }
  .hero-icon-matrix { grid-template-columns: repeat(2, 1fr); }
  .matrix-item { min-width: 0; padding: 14px 10px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 80%; margin: 0 auto; }
  .hero-status { flex-wrap: wrap; gap: 16px; padding: 16px; }
  .status-item { flex: 1 1 45%; }
  .scene-content { padding: 0 28px; }
  .stat-box { padding: 24px 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 520px) {
  .cat-card { flex-direction: column; }
  .cat-img { width: 100%; height: 160px; }
  .cat-img img { height: 160px; }
  .scene-item { height: auto; min-height: 280px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 12px; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px; }
}

/* focus 状态 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 选择文本 */
::selection {
  background: rgba(255,140,66,.3);
  color: var(--ink);
}

/* roulang page: category1 */
:root {
  --primary: #0E4D5C;
  --primary-dark: #09323C;
  --accent: #FF8C42;
  --success: #2A9D8F;
  --page-bg: #F6F3EF;
  --card: #FFFFFF;
  --dark: #0B1E24;
  --ink: #1B252C;
  --muted: #5D6A73;
  --border: #E2DDD5;
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(27,37,44,.04);
  --shadow-md: 0 8px 24px rgba(27,37,44,.06);
  --shadow-lg: 0 16px 40px rgba(27,37,44,.10);
  --transition: 0.25s ease;
  --header-h: 76px;
  --section-pad: clamp(64px, 10vw, 112px) 0;
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); background: var(--page-bg); color: var(--ink); line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: none; outline: none; }
ul, ol { list-style: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto clamp(36px, 5vw, 56px); }
.section-head h2 { font-size: clamp(24px, 4vw, 36px); font-weight: 700; color: var(--ink); line-height: 1.4; }
.section-head h2 span { color: var(--primary); }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 16px; }
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* 导航 */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,.65); backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,.5); box-shadow: 0 2px 16px rgba(27,37,44,.04); transition: background var(--transition), box-shadow var(--transition), border-color var(--transition); }
.site-header.scrolled { background: rgba(255,255,255,.96); border-bottom-color: var(--border); box-shadow: var(--shadow-md); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; letter-spacing: .5px; color: var(--primary); flex-shrink: 0; }
.brand svg { width: 30px; height: 30px; flex-shrink: 0; }
.brand:hover { color: var(--primary-dark); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { padding: 8px 14px; font-size: 15px; font-weight: 500; color: var(--ink); border-radius: 8px; transition: background var(--transition), color var(--transition); white-space: nowrap; }
.nav-link:hover { color: var(--primary); background: rgba(14,77,92,.06); }
.nav-link.active { color: var(--primary); background: rgba(14,77,92,.08); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box { position: relative; display: block; }
.search-box input { width: 180px; height: 40px; padding: 0 14px 0 36px; background: var(--page-bg); border: 1px solid var(--border); border-radius: 20px; font-size: 14px; transition: border-color var(--transition), box-shadow var(--transition), width var(--transition); }
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,77,92,.12); width: 220px; }
.search-box svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--muted); pointer-events: none; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; border-radius: 8px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: all var(--transition); }
.mobile-drawer { display: none; position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; background: rgba(246,243,239,.97); backdrop-filter: blur(12px); z-index: 999; padding: 32px 24px; flex-direction: column; gap: 4px; overflow-y: auto; }
.mobile-drawer.open { display: flex; }
.mobile-drawer a { display: block; padding: 14px 16px; font-size: 18px; font-weight: 600; color: var(--ink); border-radius: 10px; border-bottom: 1px solid var(--border); }
.mobile-drawer a:hover { background: rgba(14,77,92,.06); color: var(--primary); }
.mobile-drawer a.active { color: var(--primary); background: rgba(14,77,92,.08); }
.mobile-drawer .drawer-search { margin-bottom: 20px; }
.mobile-drawer .drawer-search input { width: 100%; height: 48px; padding: 0 16px; background: #fff; border: 1px solid var(--border); border-radius: 10px; font-size: 15px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; padding: 12px 24px; border-radius: 8px; cursor: pointer; transition: all var(--transition); border: 1px solid transparent; white-space: nowrap; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 16px; border-radius: 10px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); filter: brightness(.95); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #F27D2C; color: #fff; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,140,66,.3); }
.btn-accent:active { transform: translateY(0); filter: brightness(.95); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--ink); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(14,77,92,.04); }

/* 分类页标题区 */
.cat-banner { position: relative; background: var(--dark) url('/assets/images/backpic/back-4.jpg') center / cover no-repeat; padding: calc(var(--header-h) + 56px) 0 72px; color: #fff; overflow: hidden; }
.cat-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,30,36,.92) 0%, rgba(11,30,36,.62) 55%, rgba(11,30,36,.28) 100%); }
.cat-banner .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.72); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,.72); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb .current { color: rgba(255,255,255,.95); }
.cat-banner h1 { font-size: clamp(28px, 4.5vw, 46px); font-weight: 800; line-height: 1.3; color: #fff; max-width: 680px; letter-spacing: .5px; }
.cat-banner h1 span { color: var(--accent); }
.cat-banner .cat-intro { margin-top: 14px; font-size: 17px; color: rgba(255,255,255,.82); max-width: 640px; line-height: 1.8; }
.cat-banner .banner-meta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.banner-meta .meta-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); border-radius: 30px; font-size: 13px; color: rgba(255,255,255,.92); backdrop-filter: blur(8px); }
.banner-meta .meta-chip svg { width: 14px; height: 14px; color: var(--accent); }

/* 筛选栏 */
.filter-bar { background: var(--card); border-bottom: 1px solid var(--border); position: sticky; top: var(--header-h); z-index: 100; }
.filter-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 16px 0; }
.filter-label { font-size: 14px; font-weight: 700; color: var(--primary); margin-right: 6px; white-space: nowrap; }
.filter-chip { display: inline-flex; align-items: center; padding: 7px 18px; border-radius: 30px; font-size: 14px; font-weight: 500; color: var(--muted); background: var(--page-bg); border: 1px solid var(--border); transition: all var(--transition); }
.filter-chip:hover { border-color: var(--primary); color: var(--primary); background: rgba(14,77,92,.05); }
.filter-chip.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }

/* 资源列表 */
.resource-section { padding: var(--section-pad); }
.resource-list { display: flex; flex-direction: column; gap: 16px; }
.resource-item { display: flex; align-items: center; gap: 24px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px; box-shadow: var(--shadow-sm); transition: all var(--transition); }
.resource-item:hover { box-shadow: var(--shadow-lg); border-color: rgba(14,77,92,.25); transform: translateY(-2px); }
.resource-cover { width: 120px; height: 76px; border-radius: 8px; overflow: hidden; flex-shrink: 0; background: var(--page-bg); }
.resource-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.resource-item:hover .resource-cover img { transform: scale(1.05); }
.resource-info { flex: 1; min-width: 0; }
.resource-info h3 { font-size: 18px; font-weight: 700; color: var(--ink); line-height: 1.4; margin-bottom: 4px; transition: color var(--transition); }
.resource-info h3 a:hover { color: var(--primary); }
.resource-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.resource-meta span { display: inline-flex; align-items: center; gap: 4px; }
.resource-meta svg { width: 13px; height: 13px; opacity: .7; }
.resource-desc { font-size: 14px; color: var(--muted); line-height: 1.65; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.resource-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; background: rgba(14,77,92,.08); color: var(--primary); }
.tag-accent { background: rgba(255,140,66,.12); color: #D96B2C; }
.resource-action { flex-shrink: 0; text-align: center; }
.resource-action .btn { min-width: 92px; }
.resource-action .action-note { display: block; font-size: 12px; color: var(--muted); margin-top: 6px; }

/* 分页器 */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.page-link { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); font-size: 14px; font-weight: 600; color: var(--ink); transition: all var(--transition); }
.page-link:hover { border-color: var(--primary); color: var(--primary); background: rgba(14,77,92,.04); }
.page-link.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-link.disabled { opacity: .42; pointer-events: none; }

/* 卖点区 */
.features-band { background: var(--dark); padding: var(--section-pad); position: relative; overflow: hidden; }
.features-band::before { content: ''; position: absolute; top: -80px; right: -80px; width: 260px; height: 260px; border-radius: 50%; background: rgba(14,77,92,.35); filter: blur(60px); }
.features-band .container { position: relative; z-index: 2; }
.features-band .section-head h2 { color: #fff; }
.features-band .section-head p { color: rgba(255,255,255,.6); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-md); padding: 28px 22px; transition: all var(--transition); }
.feature-card:hover { background: rgba(255,255,255,.09); border-color: rgba(255,140,66,.4); transform: translateY(-3px); }
.feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 10px; background: var(--accent); color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: rgba(255,255,255,.64); line-height: 1.7; }

/* 场景区 */
.scenes-band { padding: var(--section-pad); }
.scene-row { position: relative; height: 300px; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 24px; display: flex; align-items: flex-end; background-size: cover; background-position: center; box-shadow: var(--shadow-md); }
.scene-row::before { content: ''; position: absolute; inset: 0; background: linear-gradient(85deg, rgba(11,30,36,.85) 0%, rgba(11,30,36,.45) 60%, rgba(11,30,36,.1) 100%); transition: all .4s ease; }
.scene-row:hover::before { background: linear-gradient(85deg, rgba(11,30,36,.92) 0%, rgba(11,30,36,.55) 55%, rgba(11,30,36,.15) 100%); }
.scene-content { position: relative; z-index: 2; padding: 36px 40px; max-width: 620px; }
.scene-content h3 { font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.scene-content p { font-size: 15px; color: rgba(255,255,255,.8); line-height: 1.75; margin-bottom: 16px; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; color: var(--accent); transition: gap var(--transition); }
.text-link:hover { color: #FFA86B; gap: 10px; }

/* FAQ */
.faq-section { padding: var(--section-pad); background: var(--card); }
.faq-list { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; text-align: left; padding: 22px 4px; font-size: 16px; font-weight: 600; color: var(--ink); cursor: pointer; transition: color var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { position: relative; width: 16px; height: 16px; flex-shrink: 0; transition: transform .3s ease; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--primary); border-radius: 2px; transition: opacity var(--transition); }
.faq-icon::before { left: 0; right: 0; top: 50%; height: 2px; transform: translateY(-50%); }
.faq-icon::after { top: 0; bottom: 0; left: 50%; width: 2px; transform: translateX(-50%); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer-inner { padding: 0 24px 22px 4px; color: var(--muted); font-size: 15px; line-height: 1.8; }

/* CTA 横幅 */
.cta-banner { background: var(--dark) url('/assets/images/backpic/back-7.jpg') center / cover no-repeat; padding: clamp(64px, 8vw, 96px) 0; text-align: center; position: relative; }
.cta-banner::before { content: ''; position: absolute; inset: 0; background: rgba(11,30,36,.78); }
.cta-banner .container { position: relative; z-index: 2; }
.cta-banner h2 { font-size: clamp(24px, 4vw, 38px); font-weight: 800; color: #fff; line-height: 1.35; margin-bottom: 12px; }
.cta-banner h2 span { color: var(--accent); }
.cta-banner p { font-size: 16px; color: rgba(255,255,255,.78); margin-bottom: 28px; }

/* 页脚 */
.site-footer { background: var(--dark); color: rgba(255,255,255,.72); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand h3 { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; letter-spacing: .5px; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.58); max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.58); padding: 4px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-col p { font-size: 14px; color: rgba(255,255,255,.58); line-height: 1.9; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); }

/* 滚动渐入 */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* 响应式 */
@media (max-width: 1200px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
  .main-nav { display: none; }
  .header-actions .search-box { display: none; }
  .header-actions .btn-accent { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .resource-item { gap: 16px; }
}
@media (max-width: 768px) {
  .cat-banner { padding: calc(var(--header-h) + 40px) 0 48px; }
  .cat-banner h1 { font-size: 28px; }
  .cat-banner .cat-intro { font-size: 15px; }
  .resource-item { flex-wrap: wrap; padding: 14px; }
  .resource-cover { width: 100%; height: 160px; }
  .resource-action { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
  .resource-action .btn { flex: 1; }
  .scene-row { height: 260px; }
  .scene-content { padding: 24px 24px; }
  .scene-content h3 { font-size: 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .resource-section { padding: 48px 0; }
  .faq-section { padding: 48px 0; }
  .features-band { padding: 48px 0; }
  .scenes-band { padding: 48px 0; }
}
@media (max-width: 520px) {
  .banner-meta .meta-chip { font-size: 12px; padding: 5px 12px; }
  .filter-inner { gap: 6px; }
  .filter-chip { padding: 6px 12px; font-size: 13px; }
  .resource-info h3 { font-size: 16px; }
  .resource-desc { font-size: 13px; }
  .pagination { gap: 5px; }
  .page-link { min-width: 36px; height: 36px; padding: 0 10px; font-size: 13px; }
  .footer-bottom { font-size: 12px; padding: 18px 12px; }
}