/* roulang page: index */
:root {
  --primary: #1E6FD9;
  --primary-light: #EAF2FC;
  --primary-dark: #1556A8;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --success: #16A34A;
  --danger: #DC2626;
  --disabled: #94A3B8;
  --bg: #F6F9FC;
  --card-bg: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --text-sub: #64748B;
  --text-weak: #94A3B8;
  --footer-bg: #0F1E33;
  --footer-text: #C7D2E0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-img: 8px;
  --shadow-card: 0 4px 16px rgba(30,111,217,.08);
  --shadow-hover: 0 10px 28px rgba(30,111,217,.14);
  --container: 1200px;
  --header-h: 72px;
  --gap: 24px;
  --section-gap: 96px;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-img);
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}
input {
  font-family: inherit;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.tabular-nums {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  transition: all .2s ease;
  white-space: nowrap;
  min-width: 120px;
}
.btn:focus-visible {
  outline: 3px solid rgba(30,111,217,.35);
  outline-offset: 2px;
}
.btn:active {
  transform: scale(.98);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(30,111,217,.25);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}
.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(245,158,11,.28);
}
.btn-ghost {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-ghost:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-block {
  width: 100%;
}
@media (max-width: 767px) {
  .btn {
    min-width: 0;
    padding: 0 20px;
  }
}

/* ===== Badges & Tags ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
}
.badge-orange {
  background: #FEF3C7;
  color: #B45309;
  border: 1px solid #FDE68A;
}
.badge-green {
  background: #DCFCE7;
  color: #15803D;
  border: 1px solid #BBF7D0;
}
.badge-blue {
  background: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid #BFDBFE;
}
.tag {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary-dark);
  line-height: 1.6;
}

/* ===== Topbar ===== */
.topbar {
  background: var(--footer-bg);
  color: #fff;
  font-size: 14px;
  padding: 10px 0;
  position: relative;
  z-index: 100;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  text-align: center;
}
.topbar-label {
  color: #C7D2E0;
}
.topbar-countdown {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .02em;
}
.topbar-icon {
  color: var(--accent);
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15,30,51,.04);
}
.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-mark svg {
  width: 26px;
  height: 26px;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.logo-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.5;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: var(--header-h);
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.nav-link:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--primary);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-sub);
  white-space: nowrap;
}
.nav-status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(22,163,74,.15);
}
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: #fff;
  transition: all .2s ease;
}
.hamburger:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-drawer {
  display: none;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 16px 24px 24px;
  box-shadow: 0 18px 30px rgba(15,30,51,.08);
}
.mobile-drawer.open {
  display: block;
}
.mobile-drawer .drawer-link {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.mobile-drawer .drawer-link:last-child {
  border-bottom: none;
}
.mobile-drawer .drawer-link.active {
  color: var(--primary);
  font-weight: 600;
}
.mobile-drawer .drawer-cta {
  margin-top: 16px;
}
@media (max-width: 1023px) {
  .nav-links {
    display: none;
  }
  .nav-status {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-cta-login {
    display: none;
  }
  .mobile-drawer {
    display: none;
  }
  .mobile-drawer.open {
    display: block;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--primary-light);
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 24px;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-badge {
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-sub);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  min-height: 360px;
  border-radius: 16px;
  background-color: #DDE9F7;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 24px;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(15,30,51,.02) 30%, rgba(15,30,51,.18) 100%);
}
.hero-float-card {
  position: absolute;
  top: 28px;
  right: 28px;
  background: #fff;
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: 0 10px 28px rgba(15,30,51,.12);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-float-card .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(22,163,74,.15);
}
.hero-float-note {
  position: absolute;
  bottom: 28px;
  left: 28px;
  background: rgba(255,255,255,.9);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-sub);
  border: 1px solid var(--border);
}
@media (max-width: 1023px) {
  .hero {
    min-height: auto;
    padding: 40px 0;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 24px;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-visual {
    min-height: 260px;
  }
}
@media (max-width: 767px) {
  .hero h1 {
    font-size: 26px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-visual {
    min-height: 220px;
  }
}

/* ===== Section base ===== */
.section {
  padding: var(--section-gap) 0;
}
.section-head {
  margin-bottom: 48px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.02em;
  position: relative;
  padding-left: 16px;
  margin-bottom: 12px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 6px;
  border-radius: 4px;
  background: var(--primary);
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 640px;
  padding-left: 16px;
}
@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 24px;
  }
}

/* ===== Catalog ===== */
.catalog {
  background: var(--bg);
}
.catalog-inner {
  background: var(--primary-light);
  border-radius: 16px;
  padding: 40px;
  border: 1px solid #BFDBFE;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.catalog-item {
  position: relative;
  display: block;
  padding: 24px 24px 24px 28px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--border);
  transition: all .25s ease;
  min-height: 148px;
}
.catalog-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 2px;
  background: transparent;
  transition: background .25s ease;
}
.catalog-item:hover {
  border-color: #BFDBFE;
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.catalog-item:hover::before {
  background: var(--accent);
}
.catalog-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-weak);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  display: block;
  margin-bottom: 10px;
}
.catalog-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.catalog-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}
.catalog-item .catalog-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 10px;
}
.catalog-item .catalog-link .arrow {
  transition: transform .2s ease;
}
.catalog-item:hover .catalog-link .arrow {
  transform: translateX(4px);
}
@media (max-width: 1023px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .catalog-inner {
    padding: 24px 16px;
    border-radius: 12px;
  }
  .catalog-grid {
    grid-template-columns: 1fr;
  }
  .catalog-item {
    min-height: 0;
  }
}

/* ===== Featured ===== */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.featured-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .25s ease;
}
.featured-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: #BFDBFE;
  transform: translateY(-2px);
}
.featured-card-main {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
}
.featured-cover {
  position: relative;
  background-color: var(--primary-light);
  background-size: cover;
  background-position: center;
  min-height: 240px;
}
.featured-card-main .featured-cover {
  min-height: 320px;
}
.featured-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.featured-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.featured-card:not(.featured-card-main) .featured-title {
  font-size: 18px;
}
.featured-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.featured-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.featured-link .arrow {
  transition: transform .2s ease;
}
.featured-link:hover .arrow {
  transform: translateX(4px);
}
.featured-card-aside .featured-cover {
  min-height: 180px;
}
@media (max-width: 1023px) {
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .featured-card-main {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }
  .featured-card-main .featured-cover {
    min-height: 220px;
  }
}
@media (max-width: 767px) {
  .featured-body {
    padding: 20px;
  }
  .featured-title {
    font-size: 18px;
  }
}

/* ===== News / CMS ===== */
.news {
  background: var(--bg);
}
.news-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
}
.news-list {
  background: #fff;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
}
.news-item-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease;
}
.news-item-row:last-child {
  border-bottom: none;
}
.news-item-row:hover {
  background: var(--primary-light);
}
.news-date-block {
  flex-shrink: 0;
  width: 56px;
  text-align: center;
  background: var(--primary-light);
  border-radius: 8px;
  padding: 8px 4px;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  color: var(--primary-dark);
}
.news-date-block .day {
  font-size: 22px;
  font-weight: 700;
  display: block;
}
.news-date-block .month {
  font-size: 13px;
  color: var(--text-sub);
}
.news-main {
  flex: 1;
  min-width: 0;
}
.news-item-link {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  transition: color .2s ease;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-item-link:hover {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-weak);
}
.news-arrow {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  transition: all .2s ease;
}
.news-item-row:hover .news-arrow {
  background: var(--primary);
  color: #fff;
  transform: translateX(3px);
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
}
.sidebar-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-left: 12px;
  position: relative;
  line-height: 1.4;
}
.sidebar-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 3px;
  background: var(--primary);
}
.sidebar-mini-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.sidebar-mini-item:last-child {
  border-bottom: none;
}
.sidebar-mini-cover {
  width: 72px;
  height: 48px;
  border-radius: 6px;
  background-color: var(--primary-light);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}
.sidebar-mini-item a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sidebar-mini-item a:hover {
  color: var(--primary);
}
.sidebar-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 12px;
}
.sidebar-cat-list {
  display: grid;
  gap: 10px;
}
.sidebar-cat-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--primary-light);
  border: 1px solid #BFDBFE;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary-dark);
  transition: all .2s ease;
}
.sidebar-cat-link:hover {
  background: #fff;
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
}
@media (max-width: 1023px) {
  .news-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
@media (max-width: 767px) {
  .news-item-row {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
  }
  .news-main {
    flex-basis: calc(100% - 76px);
  }
  .news-arrow {
    display: none;
  }
  .news-summary {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* ===== Empty state ===== */
.news-empty {
  padding: 48px 24px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
  margin: 16px;
}
.news-empty .empty-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--primary);
}
.news-empty p {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 12px;
}
.news-empty a {
  font-size: 14px;
  font-weight: 600;
}

/* ===== Related ===== */
.related-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all .25s ease;
  display: block;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: #BFDBFE;
}
.related-cover {
  height: 140px;
  background-color: var(--primary-light);
  background-size: cover;
  background-position: center;
}
.related-body {
  padding: 16px;
}
.related-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
  margin-bottom: 8px;
}
.related-card:hover .related-title {
  color: var(--primary);
}
.related-meta {
  font-size: 13px;
  color: var(--text-weak);
}
@media (max-width: 1023px) {
  .related-row {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .related-row {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 8px;
  }
  .related-card {
    flex: 0 0 240px;
    scroll-snap-align: start;
  }
}

/* ===== CTA band ===== */
.cta-band {
  background: var(--footer-bg);
  color: #fff;
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
  top: -100px;
  right: -80px;
}
.cta-band::after {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.06);
  bottom: -60px;
  left: 10%;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.cta-desc {
  font-size: 15px;
  color: #A6B8CC;
  line-height: 1.7;
  max-width: 560px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-actions .btn-ghost {
  border-color: rgba(255,255,255,.35);
  color: #fff;
  background: transparent;
}
.cta-actions .btn-ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.6);
}
@media (max-width: 767px) {
  .cta-band {
    padding: 48px 0;
  }
  .cta-title {
    font-size: 22px;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
}

/* ===== FAQ ===== */
.faq {
  background: var(--bg);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all .2s ease;
}
.faq-item.open {
  border-color: #BFDBFE;
  box-shadow: var(--shadow-card);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  background: #fff;
  transition: color .2s ease;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-item.open .faq-question {
  color: var(--primary);
}
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform .3s ease, background .2s ease;
  line-height: 1;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.faq-answer-inner {
  padding: 0 24px 24px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-sub);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 0;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  font-size: 14px;
}
.footer-top {
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .footer-logo .logo-mark {
  background: rgba(255,255,255,.12);
}
.footer-desc {
  line-height: 1.8;
  color: #A6B8CC;
  max-width: 360px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links {
  display: grid;
  gap: 10px;
}
.footer-links a {
  color: #A6B8CC;
  font-size: 14px;
  transition: color .2s ease;
}
.footer-links a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #8899AB;
}
.footer-bottom a {
  color: #A6B8CC;
}
@media (max-width: 1023px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: span 2;
  }
}
@media (max-width: 767px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-brand {
    grid-column: span 1;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
  --primary: #1E6FD9;
  --primary-light: #EAF2FC;
  --primary-dark: #1556A8;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --success: #16A34A;
  --danger: #DC2626;
  --muted: #94A3B8;
  --bg: #F6F9FC;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --footer-bg: #0F1E33;
  --footer-text: #C7D2E0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-img: 8px;
  --shadow-card: 0 4px 16px rgba(30,111,217,.08);
  --shadow-hover: 0 10px 28px rgba(30,111,217,.14);
  --container: 1200px;
  --space: 56px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.02em; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(245,158,11,.45);
  outline-offset: 2px;
}
.container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  height: 60px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.site-logo { display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-mark { width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center; }
.logo-mark svg { width: 100%; height: 100%; }
.logo-text { font-size: 17px; font-weight: 700; color: var(--text); letter-spacing: -0.02em; white-space: nowrap; }
.logo-badge {
  font-size: 11px;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.nav-links { display: none; gap: 32px; margin-left: 24px; }
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 20px 0;
  border-bottom: 2px solid transparent;
  transition: color .25s, border-color .25s;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); border-bottom-color: var(--primary); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.status-pill { display: none; align-items: center; gap: 6px; font-size: 13px; color: var(--success); background: rgba(22,163,74,.08); border-radius: 999px; padding: 6px 12px; font-weight: 500; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
.nav-toggle {
  display: flex;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color .25s;
}
.nav-toggle:hover { border-color: var(--primary); }
.nav-toggle span { width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s, opacity .3s, background .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--primary); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--primary); }
.mobile-menu { display: none; background: #fff; border-top: 1px solid var(--border); padding: 16px 24px 24px; }
.mobile-menu.open { display: block; }
.mobile-nav { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.mobile-nav-link { padding: 12px 8px; font-size: 16px; font-weight: 500; color: var(--text-secondary); border-radius: 8px; transition: background .25s, color .25s; }
.mobile-nav-link:hover { background: var(--primary-light); color: var(--primary); }
.mobile-nav-link.active { color: var(--primary); background: var(--primary-light); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .25s, color .25s, border-color .25s, transform .25s, box-shadow .25s;
  min-width: 44px;
  white-space: nowrap;
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(245,158,11,.35); }
.btn-ghost { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-ghost:hover { background: var(--primary-light); }
.btn-ghost-light { background: transparent; border-color: rgba(255,255,255,.65); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* Page Hero */
.page-hero {
  position: relative;
  background-color: var(--primary-dark);
  background-size: cover;
  background-position: center;
  padding: 48px 0 40px;
  color: #fff;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(15,30,51,.62);
}
.page-hero-inner { position: relative; z-index: 1; }
.breadcrumb { display: flex; gap: 8px; font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 20px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,.88); transition: color .25s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { opacity: .5; }
.breadcrumb-current { color: #fff; }
.hero-badge {
  display: inline-block;
  background: rgba(245,158,11,.18);
  color: var(--accent);
  border: 1px solid rgba(245,158,11,.4);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.page-hero h1 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.hero-sub { font-size: 14px; color: rgba(255,255,255,.85); max-width: 580px; }

/* Section */
.section { padding: var(--space) 0; }
.section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { margin-bottom: 32px; }
.section-head h2 {
  font-size: 22px;
  font-weight: 700;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--primary);
}
.section-head p { color: var(--text-secondary); margin-top: 10px; font-size: 14px; }

/* News List */
.news-list { display: flex; flex-direction: column; gap: 24px; }
.news-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: rgba(30,111,217,.25); }
.news-card-media {
  position: relative;
  border-radius: var(--radius-img);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 80' fill='none'%3E%3Ccircle cx='40' cy='40' r='18' fill='%231E6FD9' opacity='.25'/%3E%3Cpath d='M14 40a26 26 0 0 1 52 0' stroke='%23F59E0B' stroke-width='4' fill='none' stroke-linecap='round'/%3E%3Ccircle cx='40' cy='40' r='6' fill='%23F59E0B' opacity='.5'/%3E%3C/svg%3E") center/40% no-repeat;
}
.news-card-media img { width: 100%; height: 100%; object-fit: cover; position: relative; }
.news-index {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(15,30,51,.78);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
  z-index: 2;
}
.news-card-body { display: flex; flex-direction: column; justify-content: center; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 12px;
  transition: background .25s, color .25s;
}
.tag:hover { background: var(--primary); color: #fff; }
time { font-size: 13px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.news-card-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; line-height: 1.4; }
.news-card-body p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: gap .3s, color .3s;
}
.news-link:hover { gap: 10px; color: var(--primary-dark); }
.news-link span { transition: transform .3s; }

/* Topics */
.topics-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.topic-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s, transform .3s;
}
.topic-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.topic-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 80' fill='none'%3E%3Ccircle cx='40' cy='40' r='18' fill='%231E6FD9' opacity='.25'/%3E%3Cpath d='M14 40a26 26 0 0 1 52 0' stroke='%23F59E0B' stroke-width='4' fill='none' stroke-linecap='round'/%3E%3Ccircle cx='40' cy='40' r='6' fill='%23F59E0B' opacity='.5'/%3E%3C/svg%3E") center/40% no-repeat;
}
.topic-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.topic-card:hover .topic-media img { transform: scale(1.04); }
.topic-body { padding: 20px 22px 24px; }
.topic-tag { display: inline-block; font-size: 12px; color: var(--accent-dark); background: rgba(245,158,11,.1); border-radius: 999px; padding: 2px 10px; margin-bottom: 10px; font-weight: 600; }
.topic-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.topic-body p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

/* Stats */
.stats-band { background: var(--footer-bg); color: #fff; padding: 48px 0; position: relative; overflow: hidden; }
.stats-band::before {
  content: "";
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
  top: -80px; right: -60px;
}
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; position: relative; z-index: 1; }
.stat-item { text-align: center; }
.stat-num { font-size: 28px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; line-height: 1.2; }
.stat-label { color: var(--footer-text); font-size: 13px; margin-top: 6px; }

/* Features */
.features-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.feature-card { padding: 28px 24px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-card); box-shadow: var(--shadow-card); transition: box-shadow .3s, transform .3s; }
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.feature-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary);
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

/* CTA */
.cta-band { padding: 56px 0; }
.cta-box {
  background: var(--footer-bg);
  border-radius: 16px;
  padding: 40px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 12% 50%, rgba(30,111,217,.28) 0, transparent 55%), radial-gradient(circle at 88% 8%, rgba(245,158,11,.2) 0, transparent 42%);
}
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.cta-box p { color: rgba(255,255,255,.75); font-size: 15px; margin-bottom: 28px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-actions .btn { width: calc(50% - 6px); }
.cta-actions .btn-accent { width: 100%; }

/* FAQ */
.faq-section .container { max-width: 860px; }
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item.active { border-color: rgba(30,111,217,.3); box-shadow: var(--shadow-card); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: color .3s;
}
.faq-question:hover { color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); }
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--primary);
  transition: transform .3s, background .3s, color .3s;
  flex-shrink: 0;
  font-style: normal;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-item.active .faq-answer { max-height: 400px; }
.faq-answer p { padding: 0 16px 16px; color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

/* Footer */
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding: 56px 0 0; }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 32px; padding-bottom: 36px; }
.footer-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-size: 18px; font-weight: 700; }
.footer-logo .logo-mark { width: 34px; height: 34px; }
.footer-logo .logo-mark svg { width: 100%; height: 100%; }
.footer-desc { color: var(--footer-text); font-size: 14px; line-height: 1.7; margin-top: 16px; max-width: 360px; }
.footer-col-title { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--footer-text); font-size: 14px; transition: color .25s; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
  align-items: flex-start;
}
.footer-bottom a { color: rgba(255,255,255,.55); transition: color .25s; }
.footer-bottom a:hover { color: var(--accent); }

/* Desktop */
@media (min-width: 768px) {
  :root { --space: 72px; }
  .container { padding: 0 24px; }
  .page-hero { padding: 64px 0 56px; }
  .page-hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .section-head h2 { font-size: 24px; }
  .news-card-body h3 { font-size: 20px; }
  .topics-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .cta-box { padding: 44px 36px; }
  .cta-box h2 { font-size: 26px; }
  .cta-actions .btn { width: auto; }
  .cta-actions .btn-accent { width: auto; }
}

@media (min-width: 1024px) {
  :root { --space: 96px; }
  .header-inner { height: 72px; gap: 24px; }
  .logo-text { font-size: 20px; }
  .logo-badge { font-size: 12px; padding: 2px 8px; }
  .nav-links { display: flex; gap: 32px; margin-left: 24px; }
  .status-pill { display: inline-flex; }
  .header-actions .btn-primary { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-menu { display: none !important; }
  .page-hero { padding: 72px 0 64px; }
  .page-hero h1 { font-size: 40px; }
  .hero-sub { font-size: 18px; }
  .section-head h2 { font-size: 28px; }
  .section-head { margin-bottom: 40px; }
  .news-card { grid-template-columns: 460px 1fr; gap: 32px; padding: 24px; }
  .news-card-body h3 { font-size: 22px; }
  .topics-grid { grid-template-columns: repeat(3, 1fr); }
  .topic-card:nth-child(2) { margin-top: 32px; }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stats-band { padding: 56px 0; }
  .stat-num { font-size: 38px; }
  .footer-top { grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
  .footer-bottom { flex-direction: row; gap: 24px; align-items: center; }
  .cta-box { padding: 52px 48px; }
  .cta-box h2 { font-size: 30px; }
  .faq-question { padding: 20px 24px; font-size: 16px; }
  .faq-answer p { padding: 0 24px 20px; font-size: 15px; }
}

/* roulang page: article */
:root{
  --primary:#1E6FD9;
  --primary-light:#EAF2FC;
  --primary-dark:#1556A8;
  --accent:#F59E0B;
  --accent-dark:#D97706;
  --success:#16A34A;
  --danger:#DC2626;
  --disabled:#94A3B8;
  --bg:#F6F9FC;
  --card:#FFFFFF;
  --border:#E2E8F0;
  --text:#1E293B;
  --text-secondary:#64748B;
  --text-weak:#94A3B8;
  --footer-bg:#0F1E33;
  --footer-text:#C7D2E0;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-img:8px;
  --shadow-card:0 4px 16px rgba(30,111,217,.08);
  --shadow-hover:0 10px 28px rgba(30,111,217,.14);
  --container-width:1200px;
  --header-height:72px;
  --font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-family);
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container-width);margin:0 auto;padding-left:24px;padding-right:24px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 24px;
  border-radius:var(--radius-btn);
  border:2px solid transparent;
  font-family:inherit;
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  cursor:pointer;
  transition:all .2s ease;
  line-height:1.4;
  white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(30,111,217,.35);outline-offset:2px}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-hover);color:#fff}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(245,158,11,.25);color:#fff}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-light);transform:translateY(-1px);color:var(--primary-dark)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:var(--header-height);
  background:#fff;
  border-bottom:1px solid var(--border);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  flex-shrink:0;
}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--primary-light);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.logo-mark svg{width:24px;height:24px}
.logo-text{
  font-size:20px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.02em;
  line-height:1;
}
.logo-badge{
  font-size:11px;
  font-weight:600;
  color:var(--accent-dark);
  background:#FEF3C7;
  padding:3px 9px;
  border-radius:999px;
  line-height:1.3;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  height:var(--header-height);
  display:inline-flex;
  align-items:center;
  font-size:15px;
  font-weight:500;
  color:var(--text-secondary);
  text-decoration:none;
  transition:color .2s;
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{
  color:var(--primary);
  font-weight:600;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--primary);
  border-radius:2px 2px 0 0;
}
.header-right{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.status-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-secondary);
  background:var(--bg);
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius:999px;
  white-space:nowrap;
}
.status-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--success);
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.btn-login{padding:10px 20px;font-size:14px}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--border);
  border-radius:8px;
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  transition:border-color .2s;
}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .3s,opacity .3s;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  display:none;
}
@media (max-width:767px){
  .mobile-menu{
    display:block;
    position:fixed;
    top:var(--header-height);
    left:0;
    right:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:0 16px 32px rgba(15,30,51,.08);
    padding:16px 24px 24px;
    transform:translateY(-16px);
    opacity:0;
    visibility:hidden;
    transition:.25s;
    z-index:99;
  }
  .mobile-menu.show{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .mobile-nav{
    display:flex;
    flex-direction:column;
  }
  .mobile-nav-link{
    display:block;
    padding:14px 0;
    font-size:16px;
    font-weight:500;
    color:var(--text);
    text-decoration:none;
    border-bottom:1px solid var(--bg);
  }
  .mobile-nav-link:hover{color:var(--primary)}
  .mobile-nav-link.active{color:var(--primary);font-weight:600}
  .mobile-menu-footer{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-top:16px;
  }
  .btn-block{flex:1}
}

.breadcrumb-wrap{
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.breadcrumb-inner{
  display:flex;
  align-items:center;
  gap:8px;
  padding-top:14px;
  padding-bottom:14px;
  font-size:14px;
  color:var(--text-weak);
  flex-wrap:wrap;
}
.breadcrumb-inner a{color:var(--text-secondary);text-decoration:none;transition:color .2s}
.breadcrumb-inner a:hover{color:var(--primary)}
.breadcrumb-sep{color:#CBD5E1;user-select:none}
.breadcrumb-current{
  color:var(--text);
  font-weight:500;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:380px;
}

.article-main{
  max-width:860px;
  margin:32px auto;
  padding:48px 56px 40px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--shadow-card);
}
.article-title{
  font-size:36px;
  font-weight:700;
  line-height:1.3;
  color:var(--text);
  letter-spacing:-.02em;
  margin-bottom:20px;
  word-break:break-word;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  padding:16px 0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  margin-bottom:28px;
  font-size:13px;
  color:var(--text-weak);
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.meta-item strong{color:var(--text-secondary);font-weight:600}
.article-content{
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.article-content p{
  margin:0 0 24px;
}
.article-content h2{
  font-size:24px;
  font-weight:700;
  color:var(--text);
  padding-left:12px;
  border-left:4px solid var(--primary);
  margin:40px 0 16px;
  letter-spacing:-.02em;
  line-height:1.4;
}
.article-content h3{
  font-size:19px;
  font-weight:600;
  color:var(--text);
  margin:32px 0 12px;
  line-height:1.45;
}
.article-content h4{
  font-size:16px;
  font-weight:600;
  color:var(--text);
  margin:24px 0 8px;
}
.article-content ul{
  list-style:disc;
  margin:0 0 24px;
  padding-left:24px;
}
.article-content ol{
  list-style:decimal;
  margin:0 0 24px;
  padding-left:24px;
}
.article-content li{
  margin-bottom:8px;
  color:var(--text-secondary);
}
.article-content blockquote{
  margin:24px 0;
  padding:16px 20px;
  border-left:4px solid var(--primary);
  background:var(--primary-light);
  border-radius:0 8px 8px 0;
  color:var(--text-secondary);
  font-style:normal;
}
.article-content blockquote p{
  margin-bottom:8px;
}
.article-content blockquote p:last-child{
  margin-bottom:0;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
  line-height:1.6;
}
.article-content th{
  background:var(--primary);
  color:#fff;
  padding:10px 12px;
  text-align:left;
  font-weight:600;
}
.article-content td{
  border:1px solid var(--border);
  padding:10px 12px;
}
.article-content tr:nth-child(even) td{
  background:#FAFCFE;
}
.article-content img{
  border-radius:var(--radius-img);
  max-width:100%;
  height:auto;
  margin:16px 0;
}
.article-content img+em{
  display:block;
  text-align:center;
  font-style:normal;
  color:var(--text-weak);
  font-size:13px;
  margin-top:-8px;
  margin-bottom:16px;
}
.article-content a{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:2px;
  transition:color .2s;
}
.article-content a:hover{
  color:var(--primary-dark);
}
.article-content code{
  background:#F1F5F9;
  padding:2px 6px;
  border-radius:4px;
  font-size:14px;
  font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
.article-content pre{
  background:#0F1E33;
  color:#E2E8F0;
  padding:16px 20px;
  border-radius:8px;
  overflow-x:auto;
  margin:24px 0;
  font-size:14px;
  line-height:1.7;
}
.article-content pre code{
  background:transparent;
  padding:0;
  color:inherit;
}
.article-content hr{
  border:none;
  border-top:1px solid var(--border);
  margin:32px 0;
}
.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:32px 0 0;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  color:var(--primary);
  background:var(--primary-light);
  border:1px solid #D5E2F1;
  transition:background .2s,border-color .2s;
}
.tag:hover{
  background:#DBEBF9;
  border-color:#B9D4EE;
}
.article-pager{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--border);
}
.pager-link{
  display:block;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:12px;
  padding:16px 20px;
  text-decoration:none;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.pager-link:hover{
  background:var(--primary-light);
  border-color:var(--primary);
  box-shadow:var(--shadow-card);
}
.pager-label{
  display:block;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:4px;
}
.pager-title{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  word-break:break-all;
}
.pager-next{text-align:right}
.article-empty{
  text-align:center;
  padding:48px 24px;
}
.article-empty .empty-icon{
  font-size:48px;
  margin-bottom:16px;
}
.article-empty h2{
  font-size:24px;
  color:var(--text);
  margin-bottom:8px;
}
.article-empty p{
  color:var(--text-secondary);
  margin-bottom:24px;
}

.related-section{
  padding:64px 0;
}
.section-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:32px;
}
.section-head h2{
  font-size:28px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.02em;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:4px;
  height:24px;
  border-radius:2px;
  background:var(--primary);
}
.section-more{
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  transition:color .2s;
}
.section-more:hover{color:var(--primary)}
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.related-card{
  display:block;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  text-decoration:none;
  transition:box-shadow .25s,transform .25s,border-color .25s;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
  border-color:#D5E2F1;
}
.related-card .related-cover{
  aspect-ratio:16/9;
  background:var(--primary-light);
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}
.related-card .related-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s;
}
.related-card:hover .related-cover img{transform:scale(1.04)}
.related-card h3{
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
  margin:16px 16px 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:48px;
}
.related-card .related-meta{
  display:block;
  font-size:13px;
  color:var(--text-weak);
  margin:0 16px 16px;
}

.faq-section{
  padding:64px 0;
  background:var(--bg);
  border-top:1px solid var(--border);
}
.faq-section .section-head{
  max-width:760px;
  margin-left:auto;
  margin-right:auto;
}
.faq-list{
  max-width:760px;
  margin:0 auto;
}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.faq-item.open{
  border-color:#B9D4EE;
  box-shadow:var(--shadow-card);
}
.faq-question{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  background:none;
  border:none;
  padding:18px 24px;
  font-family:inherit;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  text-align:left;
  transition:color .2s;
}
.faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{
  flex-shrink:0;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  transition:transform .3s,background .3s;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-answer{
  display:none;
  padding:0 24px 20px;
  font-size:15px;
  line-height:1.7;
  color:var(--text-secondary);
}
.faq-item.open .faq-answer{display:block}

.cta-band{
  background:linear-gradient(rgba(15,30,51,.9),rgba(15,30,51,.9)),url('/assets/images/backpic/back-1.webp') center/cover;
  color:#fff;
  padding:72px 0;
}
.cta-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:20px;
}
.cta-inner h2{
  font-size:32px;
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.3;
}
.cta-inner p{
  color:var(--footer-text);
  font-size:16px;
  max-width:560px;
  margin:0;
}
.cta-actions{
  display:flex;
  gap:16px;
  margin-top:8px;
  flex-wrap:wrap;
  justify-content:center;
}

.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding:56px 0 0;
  font-size:14px;
  line-height:1.7;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:48px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:700;
  text-decoration:none;
  margin-bottom:12px;
}
.footer-logo .logo-mark{
  background:rgba(30,111,217,.25);
  width:36px;
  height:36px;
}
.footer-logo svg{width:22px;height:22px}
.footer-desc{
  color:var(--footer-text);
  font-size:14px;
  line-height:1.8;
  max-width:340px;
  margin:0;
}
.footer-col-title{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:var(--footer-text);
  text-decoration:none;
  transition:color .2s;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:13px;
  color:var(--footer-text);
  flex-wrap:wrap;
}
.footer-bottom a{
  color:var(--footer-text);
  text-decoration:none;
  transition:color .2s;
}
.footer-bottom a:hover{color:#fff}

@media (max-width:1023px){
  .related-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .article-main{
    max-width:740px;
    padding:40px 32px 32px;
  }
  .article-title{
    font-size:30px;
  }
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .cta-inner h2{
    font-size:28px;
  }
}

@media (max-width:767px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .nav-links,
  .header-right .status-badge{
    display:none;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .header-right{
    gap:0;
  }
  .btn-login{
    display:none;
  }
  .mobile-menu{
    display:block;
  }
  .breadcrumb-inner{
    font-size:13px;
    gap:6px;
  }
  .breadcrumb-current{
    max-width:220px;
  }
  .article-main{
    margin:16px auto;
    padding:28px 16px 24px;
    border-radius:12px;
  }
  .article-title{
    font-size:26px;
    line-height:1.32;
  }
  .article-meta{
    gap:12px;
    font-size:12px;
  }
  .article-content{
    font-size:15px;
    line-height:1.85;
  }
  .article-content h2{
    font-size:21px;
    margin-top:32px;
  }
  .article-content h3{
    font-size:17px;
    margin-top:24px;
  }
  .article-content table{
    display:block;
    overflow-x:auto;
    white-space:nowrap;
  }
  .article-pager{
    grid-template-columns:1fr;
    gap:12px;
    margin-top:28px;
  }
  .pager-next{
    text-align:left;
  }
  .related-section{
    padding:48px 0;
  }
  .section-head h2{
    font-size:24px;
  }
  .related-grid{
    display:flex;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    gap:16px;
    padding-bottom:8px;
    margin-right:-16px;
    margin-left:-16px;
    padding-left:16px;
    padding-right:16px;
  }
  .related-card{
    flex:0 0 260px;
    scroll-snap-align:start;
  }
  .faq-section{
    padding:48px 0;
  }
  .faq-question{
    padding:16px 18px;
    font-size:15px;
  }
  .faq-answer{
    padding:0 18px 16px;
    font-size:14px;
  }
  .cta-band{
    padding:56px 0;
  }
  .cta-inner h2{
    font-size:24px;
  }
  .cta-actions{
    flex-direction:column;
    width:100%;
    max-width:320px;
  }
  .cta-actions .btn{
    width:100%;
  }
  .footer-top{
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:32px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #1E6FD9;
  --primary-light: #EAF2FC;
  --primary-dark: #1556A8;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --success: #16A34A;
  --danger: #DC2626;
  --disabled: #94A3B8;
  --bg: #F6F9FC;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --muted: #64748B;
  --footer-bg: #0F1E33;
  --footer-text: #C7D2E0;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 16px rgba(30, 111, 217, .08);
  --shadow-hover: 0 10px 28px rgba(30, 111, 217, .14);
  --container: 1200px;
  --space-lg: 96px;
  --space-md: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s;
}

a:hover {
  color: var(--primary-dark);
}

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(30, 111, 217, .04);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  flex: none;
}

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

.logo-mark {
  display: inline-flex;
  align-items: center;
}

.logo-mark svg {
  width: 32px;
  height: 32px;
}

.logo-badge {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 26px 0 22px;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: none;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--success);
  background: #F0FDF4;
  border: 1px solid #DCFCE7;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 500;
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 2px rgba(22, 163, 74, .18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background-color .2s, border-color .2s, color .2s;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid rgba(30, 111, 217, .35);
  outline-offset: 2px;
}

.btn:active {
  transform: scale(.98);
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(30, 111, 217, .25);
}

.btn-accent {
  background: var(--accent);
  color: #FFFFFF;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(245, 158, 11, .3);
}

.btn-ghost {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-ghost:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0 32px;
  min-height: 48px;
  font-size: 16px;
}

.btn-ghost.light {
  border-color: rgba(255, 255, 255, .55);
  color: #FFFFFF;
}

.btn-ghost.light:hover {
  background: rgba(255, 255, 255, .08);
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  cursor: pointer;
  margin-left: auto;
  flex: none;
  transition: border-color .2s;
}

.nav-toggle:hover {
  border-color: var(--primary);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  display: block;
  transition: transform .25s, opacity .2s;
}

.mobile-cta {
  display: none;
}

/* Banner */
.banner {
  position: relative;
  background: linear-gradient(rgba(15, 30, 51, .88), rgba(15, 30, 51, .72)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: #FFFFFF;
  padding: 72px 0 68px;
}

.banner-inner {
  max-width: 800px;
}

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, .18);
  border: 1px solid rgba(245, 158, 11, .3);
  color: #FBBF24;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.banner h1 {
  font-size: 40px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.banner p {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .85);
  max-width: 580px;
  margin-bottom: 28px;
}

.banner-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Sections */
.section {
  padding: var(--space-lg) 0;
}

.section-alt {
  background: var(--primary-light);
}

.section-title-wrap {
  max-width: 680px;
  margin-bottom: 40px;
}

.title-bar {
  display: inline-block;
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

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

/* Way cards */
.ways-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.way-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  padding: 24px;
}

.way-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(30, 111, 217, .25);
}

.way-card-feature {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  padding: 0;
}

.way-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
}

.way-card-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.way-card-body h3 {
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.way-card-body p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.way-card-body .link-more {
  margin-top: auto;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.6;
}

.tag-primary {
  background: var(--primary-light);
  color: var(--primary);
}

.tag-accent {
  background: #FEF3C7;
  color: #B45309;
}

.tag-neutral {
  background: #F1F5F9;
  color: var(--muted);
}

.check-list {
  margin-top: 4px;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  padding: 4px 0;
}

.check-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  flex: none;
}

.link-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.link-more span {
  display: inline-block;
  transition: transform .2s;
}

.link-more:hover span {
  transform: translateX(4px);
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.step-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(30, 111, 217, .22);
}

.step-item::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -24px;
  width: 24px;
  height: 2px;
  background: rgba(30, 111, 217, .2);
  transform: translateY(-50%);
}

.step-item:last-child::after {
  display: none;
}

.step-num {
  font-size: 34px;
  font-weight: 700;
  color: rgba(30, 111, 217, .2);
  display: block;
  margin-bottom: 14px;
  line-height: 1;
}

.step-item h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 8px;
}

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

/* Troubleshoot */
.troubleshoot-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.trouble-list {
  margin-top: 8px;
  border-top: 1px solid var(--border);
}

.trouble-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
}

.trouble-item:hover {
  background: #FAFDFF;
}

.trouble-index {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.trouble-body h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 6px;
}

.trouble-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 10px;
}

.trouble-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--disabled);
}

.trouble-visual img {
  border-radius: var(--radius);
  width: 100%;
  height: 320px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.trouble-note {
  margin-top: 16px;
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}

.trouble-note strong {
  font-size: 15px;
  color: var(--text);
}

.trouble-note p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 2px;
}

/* Safety */
.safe-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  background: var(--footer-bg);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.safe-card::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(245, 158, 11, .12);
}

.safe-left {
  position: relative;
  z-index: 1;
}

.badge-white {
  display: inline-block;
  background: rgba(245, 158, 11, .2);
  color: #FBBF24;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.safe-left h2 {
  color: #FFFFFF;
  font-size: 26px;
  line-height: 1.3;
  margin-bottom: 10px;
}

.safe-left p {
  color: var(--footer-text);
  font-size: 14px;
}

.safe-list {
  position: relative;
  z-index: 1;
}

.safe-list li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.safe-list li:last-child {
  border-bottom: none;
}

.safe-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex: none;
  margin-top: 4px;
}

.safe-list strong {
  display: block;
  font-size: 16px;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.safe-list p {
  font-size: 14px;
  color: var(--footer-text);
  line-height: 1.7;
}

/* FAQ */
.faq-container {
  max-width: 860px;
}

.faq-list {
  margin-top: 8px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(15, 30, 51, .04);
  transition: border-color .2s, box-shadow .2s;
}

.faq-item:hover {
  border-color: rgba(30, 111, 217, .25);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: color .2s;
  min-height: 44px;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  flex: none;
  transition: transform .25s, background-color .25s, color .25s;
}

.faq-icon::before {
  content: "+";
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #FFFFFF;
}

.faq-item.active .faq-question {
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  transition: max-height .3s ease, padding .3s ease;
}

.faq-answer p {
  padding: 0 0 22px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px;
}

/* CTA */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: var(--footer-bg);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  position: relative;
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
}

.cta-band h2 {
  color: #FFFFFF;
  font-size: 26px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.cta-band p {
  color: var(--footer-text);
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  flex: none;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.footer-logo:hover {
  color: #FFFFFF;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  max-width: 360px;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 16px;
  margin-bottom: 14px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--footer-text);
  font-size: 14px;
  line-height: 1.6;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 24px;
  font-size: 13px;
}

.footer-bottom a {
  color: var(--footer-text);
}

.footer-bottom a:hover {
  color: #FFFFFF;
}

/* Responsive */
@media (max-width: 1024px) {
  .ways-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .way-card-feature {
    grid-column: span 2;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-item::after {
    display: none;
  }

  .troubleshoot-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .safe-card {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta-band {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .cta-actions {
    justify-content: center;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 0;
  }

  .nav-links {
    display: none;
    width: 100%;
    order: 4;
    flex-direction: column;
    gap: 4px;
    margin-left: 0;
  }

  .header-inner.nav-open .nav-links {
    display: flex;
    padding: 8px 0 16px;
  }

  .header-inner.nav-open .nav-links .nav-link {
    display: block;
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid #F1F5F9;
    font-size: 16px;
  }

  .header-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .mobile-cta {
    display: none;
    width: 100%;
    order: 5;
  }

  .header-inner.nav-open .mobile-cta {
    display: block;
    padding: 4px 0 18px;
  }

  .header-inner.nav-open .mobile-cta .btn {
    width: 100%;
  }

  .header-inner.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .header-inner.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .header-inner.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: var(--space-md) 0;
  }

  .banner {
    padding: 48px 0 44px;
  }

  .banner h1 {
    font-size: 26px;
    line-height: 1.25;
  }

  .banner p {
    font-size: 15px;
  }

  .banner-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 24px;
  }

  .ways-grid {
    grid-template-columns: 1fr;
  }

  .way-card-feature {
    grid-column: span 1;
    display: block;
  }

  .way-card-feature .way-card-media img {
    height: 180px;
    min-height: 0;
  }

  .way-card-body {
    padding: 22px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .safe-card {
    padding: 28px 20px;
  }

  .safe-card::before {
    width: 140px;
    height: 140px;
    right: -40px;
    top: -40px;
  }

  .cta-band {
    padding: 28px 20px;
    text-align: center;
  }

  .cta-actions {
    width: 100%;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}