/* roulang page: index */
:root {
  --primary: #2E6BE6;
  --accent: #FF7A45;
  --success: #22B573;
  --danger: #E5484D;
  --bg: #F5F8FC;
  --card: #FFFFFF;
  --footer-bg: #1F2A3A;
  --title: #16233A;
  --text: #334155;
  --text-muted: #667085;
  --text-disable: #98A2B3;
  --border: #E4EAF2;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(46, 107, 230, 0.08);
  --shadow-hover: 0 8px 28px rgba(46, 107, 230, 0.16);
  --shadow-nav: 0 1px 8px rgba(22, 35, 58, 0.06);
  --max-width: 1200px;
  --space: 96px;
  --space-md: 56px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.no-scroll {
  overflow: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(46, 107, 230, 0.2);
  outline-offset: 2px;
}
a:hover {
  color: var(--primary);
}
ul,
ol {
  list-style: none;
}
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: var(--space) 0;
}
.section + .section {
  padding-top: 0;
}
.section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}
.section-intro h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--title);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.section-intro p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  box-shadow: 0 6px 16px rgba(255, 122, 69, 0.28);
}
.btn-primary:hover,
.btn-primary:focus {
  background: #F26E3B;
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 122, 69, 0.36);
}
.btn-ghost {
  background: #ffffff;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-ghost:hover,
.btn-ghost:focus {
  background: rgba(46, 107, 230, 0.08);
  color: var(--primary);
}
.btn-lg {
  min-height: 52px;
  padding: 0 40px;
  font-size: 16px;
  border-radius: 10px;
}
.btn-block-mobile {
  width: auto;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-nav);
  height: 72px;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 107, 230, 0.1);
  color: var(--primary);
  font-size: 22px;
}
.brand-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--title);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  display: inline-block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  position: relative;
  line-height: 1.4;
}
.main-nav a:hover {
  color: var(--primary);
  background: rgba(46, 107, 230, 0.06);
}
.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 3px;
  border-radius: 999px;
  background: var(--primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  width: 180px;
  height: 44px;
  background: #fff;
  border: 1px solid #D0D5DD;
  border-radius: 8px;
  padding: 0 12px;
  gap: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.15);
}
.search-box svg {
  flex-shrink: 0;
  color: var(--text-muted);
}
.search-box input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 14px;
  color: var(--text);
  background: transparent;
}
.search-box input::placeholder {
  color: var(--text-disable);
}
.header-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 4px;
}
.header-link:hover {
  color: var(--primary);
}
.header-cta {
  min-height: 42px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(255, 122, 69, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.header-cta:hover,
.header-cta:focus {
  background: #F26E3B;
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 122, 69, 0.32);
}
.burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--title);
  border: 1px solid var(--border);
  background: #fff;
  font-size: 20px;
  cursor: pointer;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 86vw);
  background: #fff;
  z-index: 100;
  box-shadow: -8px 0 30px rgba(22, 35, 58, 0.12);
  padding: 24px;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  border-radius: 16px 0 0 16px;
}
.mobile-drawer .drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.mobile-drawer .drawer-close {
  width: 40px;
  height: 40px;
  font-size: 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--title);
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-drawer .search-box {
  width: 100%;
  margin-bottom: 18px;
}
.mobile-drawer a {
  display: block;
  padding: 12px 8px;
  font-size: 16px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  border-radius: 6px;
}
.mobile-drawer a.active {
  color: var(--primary);
  font-weight: 600;
}
.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(22, 35, 58, 0.5);
  z-index: 90;
}
.drawer-overlay.open,
.mobile-drawer.open {
  display: block;
}
/* Hero */
.hero {
  padding: 72px 0 80px;
  background: linear-gradient(180deg, #F0F6FF 0%, #F5F8FC 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: rgba(46, 107, 230, 0.05);
  pointer-events: none;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 56px;
  position: relative;
  z-index: 1;
}
.hero-left {
  flex: 0 0 55%;
  max-width: 55%;
}
.hero-right {
  flex: 0 0 45%;
  max-width: 45%;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(46, 107, 230, 0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(34, 181, 115, 0.2);
}
.hero h1 {
  font-size: clamp(32px, 4.5vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--title);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.hero h1 span {
  color: var(--primary);
}
.hero-sub {
  font-size: 17px;
  color: var(--text);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.trust-item svg {
  color: var(--success);
}
.hero-main-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(46, 107, 230, 0.16);
  border: 4px solid #fff;
}
.live-float-card {
  position: absolute;
  left: -24px;
  bottom: 24px;
  background: #fff;
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 8px 24px rgba(22, 35, 58, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 160px;
}
.live-float-card .live-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 1.6s infinite;
}
.live-float-card .live-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--title);
  line-height: 1.3;
}
.live-float-card .live-sub {
  font-size: 12px;
  color: var(--text-muted);
}
@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 181, 115, 0.5);
  }
  60% {
    box-shadow: 0 0 0 8px rgba(34, 181, 115, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 181, 115, 0);
  }
}
/* Value Bar */
.value-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.value-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(46, 107, 230, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 24px;
}
.value-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--title);
  line-height: 1.4;
  margin-bottom: 4px;
}
.value-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
/* Screenshot Slider */
.slider-section {
  background: var(--bg);
}
.slider-block {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}
.slider-main {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: #fff;
  margin-bottom: 20px;
  position: relative;
}
.slider-main img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}
.slider-caption {
  position: absolute;
  left: 24px;
  bottom: 24px;
  background: rgba(22, 35, 58, 0.6);
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  backdrop-filter: blur(4px);
  max-width: 68%;
}
.slider-caption h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
}
.slider-caption p {
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.9;
}
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  color: var(--title);
  box-shadow: 0 4px 16px rgba(22, 35, 58, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}
.slider-arrow:hover {
  background: var(--primary);
  color: #fff;
}
.slider-arrow.prev {
  left: -72px;
}
.slider-arrow.next {
  right: -72px;
}
.slider-thumbs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.slider-thumb {
  width: 90px;
  height: 56px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.7;
  transition: opacity 0.2s, border-color 0.2s;
  padding: 0;
}
.slider-thumb:hover {
  opacity: 1;
}
.slider-thumb.active {
  border-color: var(--primary);
  opacity: 1;
}
.slider-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slider-dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}
.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #D0D5DD;
}
.slider-dot.active {
  background: var(--primary);
}
/* News / CMS */
.news-section {
  background: #fff;
}
.news-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.news-head-left h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  color: var(--title);
  line-height: 1.3;
  margin-bottom: 8px;
}
.news-head-left p {
  color: var(--text-muted);
  font-size: 15px;
}
.news-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  padding: 10px 16px;
  border-radius: 8px;
  background: rgba(46, 107, 230, 0.08);
}
.news-view-all:hover {
  background: rgba(46, 107, 230, 0.16);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-card {
  display: flex;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.news-card-img {
  width: 200px;
  height: 130px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.news-card-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.news-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(46, 107, 230, 0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 10px;
}
.news-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--title);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card h3 a {
  color: inherit;
}
.news-card h3 a:hover {
  color: var(--primary);
}
.news-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-disable);
}
.news-meta a {
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-meta a:hover {
  color: var(--primary);
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: #F9FBFF;
  color: var(--text-muted);
  font-size: 15px;
}
.news-empty svg {
  color: var(--text-disable);
  margin-bottom: 12px;
}
.news-empty p {
  margin-top: 8px;
}
/* System Requirements */
.sys-req {
  background: var(--bg);
}
.sys-req-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.sys-left h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  color: var(--title);
  line-height: 1.3;
  margin-bottom: 18px;
}
.sys-left p {
  color: var(--text);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
}
.sys-platforms {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.platform-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow);
}
.platform-chip svg {
  color: var(--primary);
}
.sys-right {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.sys-right h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 24px;
}
.sys-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.sys-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}
.sys-list li svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 4px;
}
.sys-list li b {
  color: var(--title);
  font-weight: 600;
}
.version-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.version-row strong {
  color: var(--title);
  font-weight: 600;
}
/* Testimonials */
.testimonials {
  background: #fff;
}
.rating-summary {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 48px;
  padding: 28px 32px;
  background: #F9FBFF;
  border-radius: 16px;
  border: 1px solid var(--border);
  flex-wrap: wrap;
}
.rating-score {
  font-size: 52px;
  font-weight: 700;
  color: var(--title);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.rating-stars {
  color: var(--accent);
  font-size: 22px;
  letter-spacing: 4px;
  margin-bottom: 8px;
}
.rating-text {
  font-size: 14px;
  color: var(--text-muted);
}
.rating-note {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-disable);
  background: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.testimonial-card:nth-child(even) {
  transform: translateY(16px);
}
.testimonial-card:nth-child(even):hover {
  transform: translateY(14px);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
}
.testimonial-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(46, 107, 230, 0.15);
  color: var(--primary);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--title);
}
.testimonial-tag {
  font-size: 13px;
  color: var(--text-disable);
  background: #fff;
  padding: 3px 10px;
  border-radius: 999px;
  margin-left: auto;
  white-space: nowrap;
}
.testimonial-stars {
  color: var(--accent);
  font-size: 15px;
  letter-spacing: 3px;
  margin-bottom: 10px;
}
.testimonial-text {
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  border-left: 3px solid var(--primary);
  padding-left: 16px;
}
/* Download */
.download-section {
  background: var(--bg);
}
.download-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 14px 24px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  min-height: 56px;
  min-width: 200px;
}
.download-btn:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.download-btn-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(46, 107, 230, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.download-btn-label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--title);
  line-height: 1.2;
}
.download-btn-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.qr-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.qr-placeholder {
  width: 112px;
  height: 112px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-disable);
  font-size: 13px;
  text-align: center;
  line-height: 1.4;
  padding: 12px;
}
.qr-note {
  font-size: 13px;
  color: var(--text-muted);
  text-align: left;
}
.qr-note strong {
  color: var(--title);
}
/* FAQ */
.faq-section {
  background: #fff;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: box-shadow 0.2s ease;
  cursor: pointer;
}
.faq-item:hover {
  box-shadow: var(--shadow-hover);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--title);
  line-height: 1.5;
  cursor: pointer;
}
.faq-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(46, 107, 230, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease, background 0.2s ease;
}
.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  background: rgba(46, 107, 230, 0.16);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}
.faq-answer-inner {
  padding-top: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: #475467;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}
.faq-note {
  text-align: center;
  font-size: 13px;
  color: var(--text-disable);
  margin-top: 24px;
}
/* CTA */
.cta-banner {
  background: #fff;
  padding: 72px 0;
}
.cta-box {
  background: #F0F6FF;
  border: 1px solid rgba(46, 107, 230, 0.12);
  border-radius: 20px;
  padding: 48px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-box h2 {
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 700;
  color: var(--title);
  line-height: 1.3;
  margin-bottom: 10px;
}
.cta-box p {
  color: var(--text-muted);
  font-size: 15px;
}
.cta-box .btn-primary {
  min-width: 160px;
}
/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: #CBD5E1;
  border-top: 4px solid var(--primary);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand-name {
  color: #fff;
  margin-bottom: 12px;
  font-size: 20px;
  display: block;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: #94A3B8;
  margin-top: 12px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 14px;
  color: #94A3B8;
  line-height: 1.5;
}
.footer-col a:hover {
  color: #fff;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: #94A3B8;
}
.footer-contact .qr-mini {
  width: 72px;
  height: 72px;
  border: 1px dashed rgba(255,255,255,0.3);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #CBD5E1;
  background: rgba(255,255,255,0.05);
  margin-top: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #94A3B8;
}
.footer-bottom a {
  color: #CBD5E1;
}
/* Responsive */
@media (max-width: 1024px) {
  .main-nav {
    gap: 0;
  }
  .main-nav a {
    padding: 10px 10px;
    font-size: 14px;
  }
  .header-actions .search-box {
    width: 140px;
  }
  .hero-inner {
    gap: 32px;
  }
  .slider-arrow.prev {
    left: -16px;
  }
  .slider-arrow.next {
    right: -16px;
  }
  .slider-thumb {
    width: 68px;
    height: 44px;
  }
  .news-card-img {
    width: 160px;
    height: 110px;
  }
  .testimonial-card:nth-child(even) {
    transform: none;
  }
  .testimonial-card:nth-child(even):hover {
    transform: translateY(-2px);
  }
}
@media (max-width: 768px) {
  :root {
    --space: 56px;
  }
  .container {
    padding: 0 16px;
  }
  .main-nav,
  .header-actions .search-box,
  .header-link {
    display: none;
  }
  .burger {
    display: flex;
  }
  .header-actions {
    gap: 8px;
  }
  .header-cta {
    padding: 0 16px;
    font-size: 14px;
  }
  .hero {
    padding: 48px 0 56px;
  }
  .hero-inner {
    flex-direction: column-reverse;
    gap: 20px;
  }
  .hero-left,
  .hero-right {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .hero h1 {
    font-size: clamp(28px, 8vw, 36px);
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-trust {
    gap: 16px;
  }
  .live-float-card {
    left: 8px;
    bottom: 12px;
    min-width: 130px;
    padding: 10px 12px;
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .slider-caption {
    left: 12px;
    bottom: 12px;
    padding: 10px 14px;
    max-width: 85%;
  }
  .slider-caption h3 {
    font-size: 15px;
  }
  .slider-caption p {
    font-size: 12px;
  }
  .slider-arrow.prev,
  .slider-arrow.next {
    display: none;
  }
  .slider-dots {
    display: flex;
  }
  .slider-thumb {
    display: none;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .news-card {
    padding: 16px;
    gap: 16px;
  }
  .news-card-img {
    width: 96px;
    height: 96px;
    border-radius: 6px;
  }
  .news-card h3 {
    font-size: 15px;
  }
  .news-desc {
    font-size: 13px;
  }
  .news-head {
    margin-bottom: 24px;
  }
  .sys-req-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .rating-summary {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 24px 16px;
  }
  .rating-note {
    margin-left: 0;
  }
  .download-buttons {
    flex-direction: column;
    width: 100%;
    gap: 14px;
  }
  .download-btn {
    width: 100%;
    justify-content: center;
  }
  .btn-lg,
  .btn-block-mobile {
    width: 100%;
  }
  .qr-row {
    flex-direction: column;
    text-align: center;
  }
  .cta-box {
    padding: 32px 20px;
    text-align: center;
    justify-content: center;
  }
  .cta-box .btn-primary {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .faq-item {
    padding: 18px 16px;
  }
  .faq-question {
    font-size: 15px;
  }
}
@media (max-width: 520px) {
  .brand-name {
    font-size: 17px;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 18px;
  }
  .header-cta {
    font-size: 13px;
    padding: 0 12px;
  }
  .value-grid {
    grid-template-columns: 1fr;
  }
  .value-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }
  .value-item:last-child {
    border-bottom: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-brand {
    grid-column: auto;
  }
  .news-card {
    flex-direction: row;
    align-items: flex-start;
  }
  .news-card-img {
    width: 96px;
    height: 96px;
  }
  .section-intro {
    margin-bottom: 32px;
  }
}

/* roulang page: article */
:root {
  --primary: #2E6BE6;
  --primary-dark: #1E4FC4;
  --primary-light: #EAF0FF;
  --accent: #FF7A45;
  --accent-dark: #F5662E;
  --green: #22B573;
  --red: #E5484D;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --text-main: #16233A;
  --text-body: #334155;
  --text-muted: #667085;
  --text-placeholder: #98A2B3;
  --border: #E4EAF2;
  --footer-bg: #1F2A3A;
  --footer-text: #CBD5E1;
  --footer-muted: #94A3B8;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 16px rgba(46, 107, 230, 0.08);
  --shadow-md: 0 8px 28px rgba(46, 107, 230, 0.16);
  --container: 1200px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

button,
input {
  font-family: inherit;
  font-size: inherit;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(255, 122, 69, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 122, 69, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}

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

.btn-outline:active {
  transform: translateY(0);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(22, 35, 58, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-main);
}

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

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(46, 107, 230, 0.2);
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  margin-left: 16px;
}

.main-nav a {
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-light);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

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

.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F5F8FC;
  border: 1px solid #E4EAF2;
  border-radius: var(--radius-md);
  padding: 0 12px;
  height: 40px;
  width: 180px;
  transition: all var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.15);
  background: #fff;
}

.search-box svg {
  color: var(--text-placeholder);
  flex-shrink: 0;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 14px;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.search-box input::placeholder {
  color: var(--text-placeholder);
}

.header-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 12px;
  border-radius: 8px;
}

.header-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 18px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(255, 122, 69, 0.3);
  transition: all var(--transition);
  white-space: nowrap;
}

.header-cta:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 122, 69, 0.35);
}

.header-cta:active {
  transform: translateY(0);
}

.burger {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
  color: var(--text-main);
  border-radius: 8px;
  transition: background var(--transition);
}

.burger:hover {
  background: var(--primary-light);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  border-top: 4px solid var(--primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 40px;
}

.footer-brand .brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  color: var(--footer-muted);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 16px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: var(--footer-muted);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: #fff;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--footer-muted);
}

.qr-mini {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  background: #fff;
  color: var(--text-muted);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--footer-muted);
  margin: 0;
}

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

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

/* ===== Article Page ===== */
.article-page {
  padding: 40px 0 96px;
  min-height: 60vh;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.breadcrumb .sep {
  color: var(--text-placeholder);
}

.breadcrumb .current {
  color: var(--text-main);
  font-weight: 500;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-container {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px 56px;
  max-width: 860px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 32px;
}

.article-title {
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 14px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item svg {
  color: var(--text-placeholder);
}

.meta-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-placeholder);
}

.article-divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
}

.article-content p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  margin: 0 0 24px;
}

.article-content h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin: 48px 0 20px;
  padding-top: 8px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  margin: 36px 0 16px;
}

.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  margin: 28px 0 12px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 22px;
  line-height: 1.6;
  color: var(--text-body);
}

.article-content li {
  margin-bottom: 8px;
  font-size: 16px;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 24px;
  border-radius: 0 8px 8px 0;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.7;
  margin: 32px 0;
}

.article-content blockquote p {
  margin: 0;
  font-size: 15px;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: 32px 0;
  box-shadow: 0 4px 16px rgba(22, 35, 58, 0.08);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}

.article-content th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text-main);
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.article-empty p {
  font-size: 18px;
  margin-bottom: 16px;
}

.article-empty .btn {
  display: inline-flex;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: background var(--transition), color var(--transition);
}

.tag:hover {
  background: var(--primary);
  color: #fff;
}

.article-back {
  margin-top: 32px;
  display: flex;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 10px 20px;
  background: #fff;
  transition: all var(--transition);
}

.btn-back:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Related ===== */
.related-section {
  margin-top: 64px;
}

.related-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}

.related-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 8px;
}

.related-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  margin: 0;
}

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

.related-card {
  display: flex;
  flex-direction: row;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(22, 35, 58, 0.06);
  transition: box-shadow var(--transition), transform var(--transition);
  border: 1px solid var(--border);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.related-card img {
  width: 140px;
  height: 112px;
  object-fit: cover;
  flex-shrink: 0;
}

.related-info {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  min-width: 0;
}

.related-cat {
  font-size: 12px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 6px;
}

.related-info h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin: 0 0 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .search-box {
    display: none;
  }

  .main-nav a {
    padding: 8px 10px;
    font-size: 14px;
  }

  .header-cta {
    padding: 0 14px;
  }

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .header-inner {
    height: auto;
    min-height: 64px;
    gap: 12px;
    flex-wrap: wrap;
  }

  .header-inner .brand {
    margin-right: auto;
  }

  .burger {
    display: inline-flex;
  }

  .main-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 0 16px;
    border-top: 1px solid var(--border);
    margin-left: 0;
    gap: 2px;
  }

  .site-header.menu-open .main-nav {
    display: flex;
  }

  .header-actions .search-box,
  .header-actions .header-link,
  .header-actions .header-cta {
    display: none;
  }

  .site-header.menu-open .header-actions {
    flex-basis: 100%;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 0 4px;
    border-top: 1px solid var(--border);
  }

  .site-header.menu-open .header-actions .search-box {
    display: flex;
    width: 100%;
    flex-basis: 100%;
  }

  .site-header.menu-open .header-actions .header-link {
    display: inline-flex;
    margin-right: auto;
  }

  .site-header.menu-open .header-actions .header-cta {
    display: inline-flex;
  }

  .article-page {
    padding: 24px 0 64px;
  }

  .breadcrumb {
    margin-bottom: 16px;
  }

  .breadcrumb .current {
    max-width: 180px;
  }

  .article-container {
    padding: 24px 20px;
  }

  .article-title {
    font-size: 26px;
    margin-bottom: 16px;
  }

  .article-meta {
    gap: 12px;
  }

  .article-tags {
    gap: 8px;
    margin-top: 32px;
    padding-top: 24px;
  }

  .tag {
    padding: 6px 14px;
    font-size: 13px;
  }

  .related-section {
    margin-top: 48px;
  }

  .related-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .related-title {
    font-size: 22px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .related-card img {
    width: 120px;
    height: 96px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding: 48px 0 32px;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .related-card img {
    width: 104px;
    height: 88px;
  }

  .related-info {
    padding: 12px;
  }

  .related-info h3 {
    font-size: 14px;
  }

  .related-info p {
    font-size: 12px;
  }

  .article-content h2 {
    font-size: 22px;
  }

  .article-content h3 {
    font-size: 18px;
  }

  .article-content p {
    font-size: 15px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2E6BE6;
  --primary-soft: rgba(46, 107, 230, 0.08);
  --accent: #FF7A45;
  --success: #22B573;
  --danger: #E5484D;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --footer-bg: #1F2A3A;
  --text-title: #16233A;
  --text-body: #334155;
  --text-secondary: #667085;
  --text-placeholder: #98A2B3;
  --border: #E4EAF2;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(46, 107, 230, 0.08);
  --shadow-card-hover: 0 8px 28px rgba(46, 107, 230, 0.16);
  --shadow-header: 0 1px 8px rgba(22, 35, 58, 0.06);
  --transition: 0.2s ease;
  --container-max: 1200px;
  --section-space: 96px;
  --section-space-mobile: 56px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: #1d4fc4;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(46, 107, 230, 0.3);
  outline-offset: 2px;
}
a:visited {
  color: #4a5b8f;
}
a:visited.btn,
a:visited.header-cta,
a:visited.main-nav a {
  color: inherit;
}
button {
  font-family: inherit;
  cursor: pointer;
}
input {
  font-family: inherit;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}
@media (min-width: 768px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-header);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--primary);
}
.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.main-nav a:hover {
  color: var(--primary);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  opacity: 1;
}
.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  width: 180px;
  height: 44px;
}
.search-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-placeholder);
  pointer-events: none;
}
.search-box input {
  width: 100%;
  height: 44px;
  padding: 0 14px 0 36px;
  border: 1px solid #D0D5DD;
  border-radius: var(--radius-btn);
  background: #fff;
  font-size: 14px;
  color: var(--text-title);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box input::placeholder {
  color: var(--text-placeholder);
}
.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.15);
}
.header-link {
  height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
}
.header-link:hover {
  color: var(--primary);
}
.header-cta {
  height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.header-cta:hover {
  background: #e8662e;
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 122, 69, 0.25);
}
.header-cta:active {
  transform: scale(0.97);
}
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: var(--radius-btn);
  color: var(--text-title);
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}
.burger:hover {
  background: var(--primary-soft);
}
.burger .icon-close {
  display: none;
}
.burger.is-open .icon-burger {
  display: none;
}
.burger.is-open .icon-close {
  display: block;
}
.mobile-search {
  display: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #e8662e;
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 122, 69, 0.28);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-soft);
  color: var(--primary);
}
.btn-outline:active {
  background: rgba(46, 107, 230, 0.14);
  transform: scale(0.97);
}
.page-hero {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 64px 0 56px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--text-placeholder);
}
.page-hero h1 {
  font-size: clamp(32px, 5vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-title);
  margin-bottom: 14px;
}
.page-hero .page-hero-desc {
  max-width: 680px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 28px;
}
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.section {
  padding: var(--section-space-mobile) 0;
}
@media (min-width: 768px) {
  .section {
    padding: var(--section-space) 0;
  }
}
.section-light {
  background: #fff;
}
.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(22px, 3.4vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-title);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
}
.timeline-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 1024px) {
  .timeline-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 72px;
    align-items: center;
  }
}
.left-timeline {
  position: relative;
  padding-left: 44px;
}
.left-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.tl-item {
  position: relative;
  margin-bottom: 22px;
}
.tl-item:last-child {
  margin-bottom: 0;
}
.tl-dot {
  position: absolute;
  left: -36px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-placeholder);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--text-placeholder);
}
.tl-dot.is-live {
  background: var(--success);
  box-shadow: 0 0 0 2px var(--success);
}
.tl-dot.is-upcoming {
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}
.tl-dot.is-past {
  background: var(--text-placeholder);
  box-shadow: 0 0 0 2px var(--text-placeholder);
}
.tl-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.tl-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.tl-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.tl-time {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}
.tl-status {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  background: var(--bg);
  color: var(--text-secondary);
}
.tl-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 6px;
}
.tl-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}
.timeline-side .side-text {
  margin-bottom: 20px;
}
.timeline-side h3 {
  font-size: clamp(18px, 2.6vw, 22px);
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
  line-height: 1.4;
}
.timeline-side p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 16px;
}
.timeline-side img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}
.coverage-section {
  background: #fff;
}
.coverage-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow-card);
}
@media (min-width: 1024px) {
  .coverage-strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 32px 36px;
  }
}
.coverage-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.coverage-ico {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.coverage-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 4px;
  line-height: 1.4;
}
.coverage-item p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.step-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.step-item:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.step-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 8px;
  line-height: 1.45;
}
.step-item p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}
.faq-section {
  background: #fff;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(22, 35, 58, 0.04);
  transition: box-shadow 0.2s ease;
}
.faq-item.open {
  box-shadow: var(--shadow-card);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  color: var(--text-title);
  transition: color 0.2s ease;
}
.faq-q:hover {
  color: var(--primary);
}
.faq-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  background: var(--primary-soft);
  color: var(--primary);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  line-height: 1.7;
  color: #475467;
}
.cta-section {
  background: var(--bg);
}
.cta-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 52px 32px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.cta-box h2 {
  font-size: clamp(22px, 3.2vw, 28px);
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
  line-height: 1.4;
}
.cta-box p {
  max-width: 520px;
  margin: 0 auto 28px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.site-footer {
  background: var(--footer-bg);
  border-top: 4px solid var(--primary);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
  }
}
.footer-brand .brand-name {
  color: #fff;
  font-size: 19px;
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: #94A3B8;
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: #94A3B8;
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-col ul a:hover {
  color: #fff;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: #94A3B8;
}
.qr-mini {
  margin-top: 8px;
  width: 80px;
  height: 80px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-placeholder);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: #94A3B8;
}
.footer-bottom a {
  color: #CBD5E1;
}
.footer-bottom a:hover {
  color: #fff;
}
@media (max-width: 1199px) {
  .main-nav a {
    padding: 0 10px;
    font-size: 14px;
  }
  .header-cta {
    padding: 0 14px;
    font-size: 13px;
  }
  .search-box {
    width: 150px;
  }
}
@media (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fff;
    padding: 16px 20px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-header);
    display: none;
    z-index: 99;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    width: 100%;
    height: 48px;
    padding: 0 8px;
    font-size: 16px;
    border-bottom: 1px solid var(--bg);
  }
  .main-nav a::after {
    display: none;
  }
  .main-nav a.active {
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: 8px;
  }
  .mobile-search {
    display: block;
    width: 100%;
    margin-bottom: 14px;
  }
  .mobile-search input {
    width: 100%;
    height: 44px;
    border: 1px solid #D0D5DD;
    border-radius: var(--radius-btn);
    padding: 0 14px 0 38px;
    background: #fff;
    font-size: 14px;
    color: var(--text-title);
  }
  .mobile-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.15);
  }
  .mobile-search {
    position: relative;
  }
  .mobile-search svg {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-placeholder);
    pointer-events: none;
  }
  .search-box {
    display: none;
  }
  .header-link {
    display: none;
  }
  .burger {
    display: inline-flex;
  }
  .header-cta {
    margin-left: auto;
  }
}
@media (max-width: 767px) {
  .site-header {
    height: 64px;
  }
  .header-inner {
    height: 64px;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }
  .brand-name {
    font-size: 16px;
  }
  .header-cta {
    height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }
  .page-hero {
    padding: 44px 0 40px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .section-head {
    margin-bottom: 28px;
  }
  .timeline-grid {
    gap: 32px;
  }
  .left-timeline {
    padding-left: 38px;
  }
  .tl-dot {
    left: -30px;
  }
  .tl-card {
    padding: 16px 18px;
  }
  .coverage-strip {
    grid-template-columns: 1fr;
  }
  .coverage-item {
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }
  .coverage-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .cta-box {
    padding: 40px 20px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2E6BE6;
  --primary-light: rgba(46, 107, 230, 0.08);
  --accent: #FF7A45;
  --green: #22B573;
  --red: #E5484D;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --heading: #16233A;
  --text: #334155;
  --text-secondary: #667085;
  --text-placeholder: #98A2B3;
  --border: #E4EAF2;
  --footer-bg: #1F2A3A;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(46, 107, 230, 0.08);
  --shadow-hover: 0 8px 28px rgba(46, 107, 230, 0.16);
  --container: 1200px;
  --spacing: 96px;
  --spacing-mobile: 56px;
  --transition: 0.2s ease;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Segoe UI", 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: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(46, 107, 230, 0.3); outline-offset: 2px; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { color: var(--heading); line-height: 1.3; font-weight: 700; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(22, 35, 58, 0.06);
  height: 72px;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.brand-name { font-size: 19px; font-weight: 700; color: var(--heading); white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { position: relative; font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 8px 2px; transition: color var(--transition); }
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 3px; border-radius: 3px; background: var(--primary);
}
.header-actions { display: flex; align-items: center; gap: 16px; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0 12px; height: 40px; width: 180px; transition: border-color var(--transition), box-shadow var(--transition); }
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.15); background: #fff; }
.search-box svg { color: var(--text-placeholder); flex-shrink: 0; }
.search-box input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--text); width: 100%; }
.header-link { font-size: 14px; color: var(--text-secondary); font-weight: 500; }
.header-link:hover { color: var(--primary); }
.header-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff; font-size: 14px; font-weight: 600;
  padding: 10px 18px; border-radius: 8px; white-space: nowrap;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.header-cta:hover { background: #e86a35; color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(255, 122, 69, 0.3); }
.header-cta:active { transform: translateY(0); }
.burger { display: none; width: 44px; height: 44px; border-radius: 8px; align-items: center; justify-content: center; color: var(--heading); }
.mobile-menu { display: none; position: fixed; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 12px 24px rgba(22, 35, 58, 0.08); padding: 16px 24px 24px; z-index: 99; }
.mobile-menu.open { display: block; }
.mobile-menu .search-box { width: 100%; margin-bottom: 12px; }
.mobile-menu a { display: block; padding: 12px 0; font-size: 16px; font-weight: 500; color: var(--text); border-bottom: 1px solid var(--border); }
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .m-cta { display: flex; align-items: center; justify-content: center; background: var(--accent); color: #fff; border-radius: 8px; padding: 12px; margin-top: 12px; font-weight: 600; }
.hero { padding: 80px 0 72px; position: relative; overflow: hidden; background: var(--bg); }
.hero::before {
  content: ""; position: absolute; right: -80px; top: 20px; width: 480px; height: 480px;
  background-image: radial-gradient(circle, rgba(46, 107, 230, 0.08) 1px, transparent 1px);
  background-size: 22px 22px; opacity: 0.5; pointer-events: none;
}
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 64px; align-items: center; position: relative; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(46, 107, 230, 0.08); border: 1px solid rgba(46, 107, 230, 0.15); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px; margin-bottom: 20px; }
.hero h1 { font-size: clamp(32px, 4vw, 40px); line-height: 1.25; margin-bottom: 16px; }
.hero-lead { font-size: 17px; color: var(--text-secondary); max-width: 540px; margin-bottom: 28px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: #fff; font-size: 15px; font-weight: 600; padding: 12px 24px; border-radius: var(--radius-sm); min-height: 44px; min-width: 120px; transition: all var(--transition); }
.btn-primary:hover { background: #e86a35; color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(255, 122, 69, 0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1.5px solid var(--primary); color: var(--primary); font-size: 15px; font-weight: 600; padding: 10px 22px; border-radius: var(--radius-sm); min-height: 44px; transition: all var(--transition); }
.btn-ghost:hover { background: var(--primary-light); color: var(--primary); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.hero-trust { display: flex; gap: 24px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.trust-item svg { color: var(--green); }
.hero-media { position: relative; }
.hero-media img { border-radius: 16px; box-shadow: 0 12px 40px rgba(22, 35, 58, 0.14); }
.float-card {
  position: absolute; bottom: 20px; left: -24px; background: #fff; border-radius: 12px;
  box-shadow: 0 8px 28px rgba(22, 35, 58, 0.12); padding: 12px 18px;
  display: flex; align-items: center; gap: 12px; animation: float 3s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.float-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(34, 181, 115, 0.15); }
.float-text { font-size: 13px; font-weight: 600; color: var(--heading); }
.float-sub { font-size: 12px; color: var(--text-placeholder); }
.section-title { font-size: clamp(22px, 3vw, 28px); margin-bottom: 12px; font-weight: 700; }
.section-sub { font-size: 15px; color: var(--text-secondary); max-width: 560px; margin-bottom: 48px; }
.text-center { text-align: center; margin-left: auto; margin-right: auto; }
.alternate-section { padding: 80px 0; background: #fff; }
.alternate-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; margin-bottom: 80px; }
.alternate-grid:last-child { margin-bottom: 0; }
.alternate-grid.reverse .alternate-media { order: 2; }
.alternate-media img { width: 100%; height: 340px; object-fit: cover; border-radius: 16px; box-shadow: var(--shadow); transition: box-shadow var(--transition); aspect-ratio: 4/3; }
.alternate-media img:hover { box-shadow: var(--shadow-hover); }
.alternate-content .tag-line { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 999px; margin-bottom: 14px; }
.alternate-content h2 { font-size: clamp(22px, 3vw, 28px); margin-bottom: 16px; }
.alternate-content p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.alternate-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 14px; }
.alternate-link:hover { gap: 10px; }
.alternate-link svg { transition: transform var(--transition); }
.alternate-link:hover svg { transform: translateX(3px); }
.feature-strip { background: var(--bg); padding: 80px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-item { text-align: center; padding: 24px 16px; }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; }
.feature-item h3 { font-size: 16px; margin-bottom: 8px; font-weight: 600; }
.feature-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.faq-section { padding: 80px 0; background: #fff; }
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; margin-bottom: 14px; transition: border-color var(--transition), box-shadow var(--transition); }
.faq-item.open { border-color: rgba(46, 107, 230, 0.3); box-shadow: 0 4px 16px rgba(46, 107, 230, 0.06); }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; font-size: 16px; font-weight: 600; color: var(--heading); text-align: left; padding: 4px 0; min-height: 44px; }
.faq-question svg { transition: transform var(--transition); flex-shrink: 0; color: var(--text-secondary); }
.faq-item.open .faq-question svg { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; padding: 0; }
.faq-item.open .faq-answer { max-height: 500px; padding-top: 8px; }
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.cta-banner { background: var(--bg); padding: 72px 0; }
.cta-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 48px; text-align: center; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.cta-card::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 4px; background: var(--accent); }
.cta-card h2 { font-size: clamp(22px, 3vw, 28px); margin-bottom: 12px; }
.cta-card p { color: var(--text-secondary); font-size: 15px; max-width: 520px; margin: 0 auto 28px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.site-footer { background: var(--footer-bg); border-top: 4px solid var(--primary); padding: 64px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .brand-name { color: #fff; font-size: 18px; display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand p { color: #94A3B8; font-size: 13px; line-height: 1.7; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: #CBD5E1; font-size: 14px; transition: color var(--transition); }
.footer-col ul a:hover { color: #fff; }
.footer-contact { display: flex; flex-direction: column; gap: 8px; }
.footer-contact span { color: #94A3B8; font-size: 13px; }
.qr-mini { width: 96px; height: 96px; border: 1px solid rgba(255, 255, 255, 0.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #CBD5E1; font-size: 12px; margin-top: 12px; background: rgba(255, 255, 255, 0.04); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 18px 0; text-align: center; }
.footer-bottom p { color: #94A3B8; font-size: 13px; }
.footer-bottom a { color: #94A3B8; }
.footer-bottom a:hover { color: #fff; }
.back-home { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); border: 1px solid rgba(46, 107, 230, 0.2); background: #fff; padding: 10px 18px; border-radius: 8px; transition: all var(--transition); }
.back-home:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
@media (max-width: 1024px) {
  .main-nav { gap: 18px; }
  .search-box { width: 140px; }
  .hero .container { grid-template-columns: 1fr; gap: 48px; }
  .hero-media { max-width: 560px; }
  .alternate-grid { grid-template-columns: 1fr; gap: 32px; }
  .alternate-grid.reverse .alternate-media { order: 0; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { height: 64px; }
  .header-inner { height: 64px; }
  .main-nav, .search-box, .header-link, .header-cta { display: none; }
  .burger { display: flex; }
  .hero { padding: 48px 0 56px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; }
  .alternate-section, .feature-strip, .faq-section, .cta-banner { padding: 56px 0; }
  .alternate-grid { margin-bottom: 56px; }
  .alternate-media img { height: auto; aspect-ratio: 16/10; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-card { padding: 32px 20px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn-primary, .cta-actions .btn-ghost { width: 100%; }
  .container { padding: 0 16px; }
}
@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .brand-name { font-size: 17px; }
  .brand-icon { width: 32px; height: 32px; }
  .footer-grid { gap: 28px; }
}