/* roulang page: index */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root {
  --primary: #2F5D50;
  --primary-dark: #24473D;
  --primary-soft: rgba(47, 93, 80, .10);
  --accent: #D98E32;
  --accent-hover: #E9A046;
  --dark: #1C2320;
  --dark-2: #242D29;
  --bg: #F8F5EE;
  --card: #FFFFFF;
  --panel: #F0ECE3;
  --text: #22261F;
  --text-sub: #6B705C;
  --text-hint: #9A9A8A;
  --border: #E6E1D6;
  --success: #3C7A4D;
  --warning: #C0653B;
  --error: #B0483A;
  --radius-panel: 20px;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-badge: 6px;
  --radius-pill: 999px;
  --shadow: 0 2px 8px rgba(28,35,32,.04), 0 1px 2px rgba(28,35,32,.06);
  --shadow-hover: 0 12px 32px rgba(28,35,32,.10), 0 4px 8px rgba(28,35,32,.06);
  --shadow-panel: 0 8px 24px rgba(28,35,32,.12);
  --fast: .18s cubic-bezier(.33, 1, .68, 1);
  --normal: .28s cubic-bezier(.33, 1, .68, 1);
  --slow: .6s cubic-bezier(.33, 1, .68, 1);
  --container: 1200px;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
}
button,
input,
select,
textarea {
  font-family: inherit;
  color: inherit;
}
button {
  border: 0;
  background: transparent;
  cursor: pointer;
}
ul,
ol {
  list-style: none;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section-title-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}
.section-title-wrap .more-link {
  white-space: nowrap;
}
.section-title {
  position: relative;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .02em;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 4px;
  background: var(--primary);
}
.section-subtitle {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.8;
  margin-top: -34px;
  margin-bottom: 40px;
  padding-left: 18px;
}
.dark-section {
  background: var(--dark);
  color: #fff;
}
.text-center {
  text-align: center;
}
.mt-16 {
  margin-top: 16px;
}
.mb-16 {
  margin-bottom: 16px;
}
.mb-24 {
  margin-bottom: 24px;
}
.mb-40 {
  margin-bottom: 40px;
}
.mt-40 {
  margin-top: 40px;
}
.mt-64 {
  margin-top: 64px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: .02em;
  transition: all var(--normal);
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #1c2320;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(217, 142, 50, .35);
}
.btn-primary:active {
  transform: translateY(1px) scale(.98);
}
.btn-dark {
  background: var(--dark);
  color: #fff;
  border-color: rgba(255, 255, 255, .24);
}
.btn-dark:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  box-shadow: 0 8px 24px rgba(28, 35, 32, .25);
}
.btn-ghost {
  background: transparent;
  border-color: #6B705C;
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-light-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, .42);
  color: #fff;
}
.btn-light-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  transform: translateY(-2px);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}
.btn-dl {
  padding: 12px 20px;
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  transition: all var(--fast);
}
.btn-dl:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}
.text-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--fast);
}
.text-arrow:hover .arrow-icon {
  transform: translateX(4px);
}
.arrow-icon {
  display: inline-block;
  transition: transform var(--fast);
}

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-badge);
  font-size: 12px;
  line-height: 1.6;
  font-weight: 600;
  letter-spacing: .02em;
}
.badge-primary {
  background: var(--primary-soft);
  color: var(--primary);
}
.badge-accent {
  background: rgba(217, 142, 50, .12);
  color: var(--accent);
}
.badge-hot {
  background: rgba(192, 101, 59, .12);
  color: var(--warning);
}

/* 导航 */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 100;
  padding: 0 16px;
  margin-bottom: -70px;
}
.nav-panel {
  max-width: 1180px;
  margin: 0 auto;
  background: var(--dark);
  border: 1px solid rgba(47, 93, 80, .55);
  border-radius: 20px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-panel);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0;
}
.brand-name {
  color: #fff;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .04em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.main-nav::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: rgba(255, 255, 255, .86);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--fast);
}
.nav-link:hover {
  background: rgba(255, 255, 255, .16);
  color: #fff;
}
.nav-link.active {
  background: var(--accent);
  color: #1c2320;
}
.nav-cta {
  flex-shrink: 0;
}
.nav-mobile-trigger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 18px;
}

/* Hero 首屏 */
.hero {
  position: relative;
  min-height: 760px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(96deg, rgba(28, 35, 32, .82) 0%, rgba(28, 35, 32, .55) 48%, rgba(28, 35, 32, .30) 100%),
  url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-radius: 0 0 28px 28px;
  color: #fff;
  overflow: hidden;
  padding: 0 0 40px;
}
.hero-content {
  position: relative;
  width: 100%;
  display: grid;
  grid-template-columns: 7fr 5fr;
  grid-template-areas: "text visual";
  gap: 40px;
  align-items: end;
  padding-top: 110px;
  padding-bottom: 36px;
}
.hero-text {
  grid-area: text;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(47, 93, 80, .40);
  border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .92);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .05em;
  backdrop-filter: blur(4px);
}
.hero-title {
  font-size: 52px;
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: .02em;
  margin: 24px 0 18px;
  color: #fff;
}
.hero-title .accent-line {
  color: var(--accent-hover);
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 30px;
  font-weight: 400;
  line-height: 1.7;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
.hero-note {
  font-size: 13px;
  color: rgba(255, 255, 255, .50);
  margin-top: 22px;
}
.hero-visual {
  grid-area: visual;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 340px;
}
.phone-frame {
  position: relative;
  width: 260px;
  height: 500px;
  background: #111;
  border-radius: 34px;
  border: 3px solid rgba(255, 255, 255, .28);
  padding: 12px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, .5);
}
.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: #111;
  border-radius: 12px;
  z-index: 2;
}
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 24px;
  overflow: hidden;
  background: #fff;
}
.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.phone-caption {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 16px;
  background: rgba(28, 35, 32, .86);
  backdrop-filter: blur(6px);
  border-radius: 12px;
  color: #fff;
  font-size: 13px;
  padding: 8px 12px;
  text-align: center;
  letter-spacing: .04em;
}
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .94);
  border-radius: 14px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 12px 32px rgba(28, 35, 32, .30);
  animation: floatY 4s ease-in-out infinite;
}
.float-card-1 {
  top: 92px;
  left: -12px;
}
.float-card-2 {
  bottom: 120px;
  right: -8px;
  animation-delay: 1.6s;
}
.fc-icon {
  font-size: 18px;
}
@keyframes floatY {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
.hero-stats {
  position: relative;
  display: flex;
  gap: 0;
  margin-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 26px;
  justify-content: space-between;
  flex-wrap: wrap;
}
.stat-item {
  text-align: center;
  flex: 1;
  min-width: 120px;
}
.stat-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--accent-hover);
  display: inline-block;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}
.stat-suffix {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-hover);
  margin-left: 2px;
}
.stat-label {
  display: block;
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  margin-top: 4px;
}

/* 通用板块 */
.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--panel);
  border-radius: 28px;
  margin: 0 16px;
  padding-left: 24px;
  padding-right: 24px;
}

/* 核心价值区 */
.value-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 64px;
  align-items: center;
}
.value-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.value-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px 22px;
  box-shadow: var(--shadow);
  transition: all var(--normal);
}
.value-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: rgba(47, 93, 80, .35);
}
.value-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}
.value-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.value-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}
.value-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.value-list-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.value-list-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.value-list-num {
  font-size: 40px;
  line-height: 1;
  font-weight: 900;
  color: var(--accent);
  font-style: italic;
  min-width: 52px;
}
.value-list-title {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 6px;
  line-height: 1.4;
}
.value-list-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* 轮播 / 功能展示 */
.showcase-wrap {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: center;
}
.showcase-copy h3 {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 14px;
}
.showcase-copy p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.showcase-feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.showcase-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}
.showcase-feature-list .check-icon {
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}
.carousel {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(28, 35, 32, .16);
  background: #111;
  aspect-ratio: 16 / 10;
}
.carousel-track {
  display: flex;
  height: 100%;
  transition: transform .6s cubic-bezier(.33, 1, .68, 1);
}
.carousel-slide {
  min-width: 100%;
  position: relative;
  overflow: hidden;
}
.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.carousel-slide-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(28, 35, 32, .82);
  backdrop-filter: blur(6px);
  border-radius: 10px;
  color: #fff;
  font-size: 13px;
  padding: 8px 14px;
  letter-spacing: .03em;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .88);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .18);
  transition: all var(--fast);
  z-index: 5;
}
.carousel-btn:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.06);
}
.carousel-btn.prev {
  left: 14px;
}
.carousel-btn.next {
  right: 14px;
}
.carousel-dots {
  position: absolute;
  bottom: 16px;
  right: 18px;
  display: flex;
  gap: 8px;
  z-index: 6;
}
.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .45);
  transition: all var(--fast);
  border: 0;
  padding: 0;
}
.carousel-dot.active {
  width: 24px;
  background: var(--accent);
}

/* 平台要求 */
.platform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.platform-card {
  background: var(--panel);
  border: 1px solid transparent;
  border-radius: var(--radius-card);
  padding: 34px 32px;
  transition: all var(--normal);
}
.platform-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-hover);
}
.platform-name {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 22px;
}
.platform-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.platform-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.spec-item {
  background: rgba(255, 255, 255, .5);
  border-radius: 12px;
  padding: 14px 16px;
}
.spec-label {
  color: var(--text-hint);
  font-size: 12px;
  display: block;
  margin-bottom: 4px;
}
.spec-value {
  font-size: 15px;
  font-weight: 600;
}
.spec-value.highlight {
  color: var(--primary);
}
.spec-value.accent {
  color: var(--warning);
}

/* 用户评价 */
.rating-overview {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}
.rating-score {
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
}
.rating-stars {
  color: var(--accent);
  font-size: 16px;
  letter-spacing: 2px;
}
.rating-text {
  color: var(--text-sub);
  font-size: 14px;
}
.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.review-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 24px 20px;
  box-shadow: var(--shadow);
  border-top: 3px solid transparent;
  transition: all var(--normal);
}
.review-card:hover {
  border-top-color: var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.review-card:nth-child(even) {
  transform: translateY(18px);
}
.review-card:nth-child(even):hover {
  transform: translateY(12px);
}
.review-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
}
.review-name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
}
.review-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}
.review-date {
  font-size: 12px;
  color: var(--text-hint);
}
.review-stars {
  color: var(--accent);
  font-size: 12px;
}
.review-text {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 下载 CTA 横幅 */
.download-banner {
  position: relative;
  background: var(--dark);
  border-radius: 20px;
  overflow: hidden;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  box-shadow: 0 20px 60px rgba(28, 35, 32, .25);
}
.download-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  opacity: .18;
  pointer-events: none;
}
.download-content {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 280px;
}
.download-content h2 {
  color: #fff;
  font-size: 32px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 10px;
  letter-spacing: .02em;
}
.download-content p {
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  line-height: 1.7;
}
.download-actions {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.dl-btn-group {
  display: flex;
  gap: 12px;
  flex-direction: column;
}
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 12px;
  color: #fff;
  padding: 10px 18px;
  transition: all var(--fast);
  min-width: 150px;
  justify-content: flex-start;
}
.store-btn i {
  font-size: 22px;
}
.store-btn:hover {
  border-color: var(--accent);
  background: rgba(217, 142, 50, .14);
}
.store-btn .btn-sub-text {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, .65);
  line-height: 1.2;
}
.store-btn .btn-main-text {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}
.qr-box {
  width: 118px;
  height: 118px;
  border-radius: 14px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
}
.qr-grid {
  width: 76px;
  height: 76px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  padding: 4px;
  background: #fff;
  border-radius: 6px;
}
.qr-grid span {
  background: #1c2320;
  border-radius: 1px;
}
.qr-grid span:nth-child(1) {
  grid-column: span 3;
  grid-row: span 3;
}
.qr-grid span:nth-child(2) {
  grid-column: span 1;
  grid-row: span 1;
}
.qr-grid span:nth-child(3) {
  grid-column: span 2;
  grid-row: span 2;
}
.qr-grid span:nth-child(4) {
  grid-column: span 1;
  grid-row: span 1;
}
.qr-grid span:nth-child(5) {
  grid-column: span 3;
  grid-row: span 3;
}
.qr-grid span:nth-child(6) {
  grid-column: span 2;
  grid-row: span 1;
}
.qr-grid span:nth-child(7) {
  grid-column: span 1;
  grid-row: span 2;
}
.qr-grid span:nth-child(8) {
  grid-column: span 2;
  grid-row: span 2;
}
.qr-grid span:nth-child(9) {
  grid-column: span 3;
  grid-row: span 1;
}
.qr-grid span:nth-child(10) {
  grid-column: span 1;
  grid-row: span 3;
}
.qr-grid span:nth-child(11) {
  grid-column: span 2;
  grid-row: span 2;
}
.qr-caption {
  font-size: 11px;
  color: var(--text-sub);
}
.download-note {
  position: relative;
  z-index: 1;
  width: 100%;
  text-align: center;
  color: rgba(255, 255, 255, .48);
  font-size: 12px;
}

/* 最新资讯 */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 22px 26px;
  box-shadow: var(--shadow);
  transition: all var(--normal);
  position: relative;
  overflow: hidden;
}
.news-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary);
  transform: scaleY(.3);
  transform-origin: center;
  transition: transform var(--normal);
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.news-card:hover::before {
  transform: scaleY(1);
}
.news-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.news-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 6px;
  transition: color var(--fast);
}
.news-card:hover .news-card-title {
  color: var(--primary);
}
.news-card-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.news-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-hint);
}
.read-arrow {
  color: var(--primary);
  font-weight: 600;
  transition: all var(--fast);
}
.news-card:hover .read-arrow {
  transform: translateX(3px);
}
.news-empty {
  background: rgba(255, 255, 255, .6);
  border: 2px dashed var(--border);
  border-radius: var(--radius-card);
  height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-hint);
  font-size: 14px;
}
.news-empty .empty-icon {
  font-size: 34px;
  opacity: .6;
}

/* FAQ */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--fast);
}
.faq-item[open] {
  box-shadow: var(--shadow-hover);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  transition: color var(--fast);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--primary);
  transition: transform var(--fast);
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item[open] summary {
  color: var(--primary);
}
.faq-answer {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.85;
}

/* 页脚 */
.site-footer {
  padding: 0 16px 16px;
  margin-top: 96px;
}
.footer-panel {
  background: var(--dark);
  border-radius: 20px;
  padding: 48px 40px 28px;
  color: rgba(255, 255, 255, .6);
  display: grid;
  grid-template-columns: 4fr 2fr 3fr;
  gap: 48px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.footer-brand .brand {
  color: #fff;
}
.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  max-width: 300px;
  line-height: 1.8;
}
.footer-heading {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, .9);
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  transition: all var(--fast);
}
.footer-links a:hover {
  color: var(--accent-hover);
  padding-left: 4px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 14px;
}
.footer-contact .contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact .contact-icon {
  color: var(--accent-hover);
  font-size: 16px;
  width: 20px;
  text-align: center;
}
.footer-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .10);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255, 255, 255, .44);
}

/* 页面进入动画 */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s cubic-bezier(.33, 1, .68, 1), transform .6s cubic-bezier(.33, 1, .68, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .float-card {
    animation: none;
  }
}

/* 响应式 */
@media (max-width: 1199px) {
  .container {
    padding: 0 20px;
  }
  .section {
    padding: 72px 0;
  }
  .hero {
    min-height: 680px;
  }
  .hero-title {
    font-size: 44px;
  }
  .value-grid {
    gap: 40px;
  }
  .showcase-wrap {
    gap: 36px;
  }
  .download-banner {
    padding: 40px;
  }
}
@media (max-width: 991px) {
  .site-header {
    top: 8px;
    margin-bottom: -60px;
  }
  .nav-panel {
    padding: 10px 12px;
    gap: 10px;
  }
  .brand-name {
    font-size: 17px;
  }
  .nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }
  .nav-cta {
    padding: 10px 10px;
    font-size: 13px;
  }
  .hero {
    min-height: auto;
    padding-bottom: 30px;
  }
  .hero-content {
    grid-template-columns: 1fr;
    grid-template-areas: "text" "visual";
    padding-top: 110px;
    gap: 30px;
  }
  .hero-text {
    text-align: center;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-visual {
    min-height: 0;
  }
  .phone-frame {
    width: 220px;
    height: 420px;
  }
  .value-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .showcase-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .carousel {
    order: 2;
  }
  .review-card:nth-child(even) {
    transform: none;
  }
  .review-card:nth-child(even):hover {
    transform: translateY(-3px);
  }
  .footer-panel {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 48px 0;
  }
  .section-title {
    font-size: 26px;
    padding-left: 14px;
  }
  .section-title::before {
    width: 3px;
  }
  .section-subtitle {
    font-size: 14px;
    padding-left: 14px;
    margin-top: -24px;
  }
  .site-header {
    padding: 0 10px;
  }
  .nav-panel {
    gap: 6px;
    padding: 8px 10px;
  }
  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }
  .brand-name {
    font-size: 15px;
  }
  .nav-cta {
    padding: 8px 12px;
    font-size: 12px;
  }
  .nav-cta .hide-sm {
    display: none;
  }
  .hero {
    border-radius: 0 0 20px 20px;
  }
  .hero-content {
    padding-top: 90px;
  }
  .hero-title {
    font-size: 32px;
    line-height: 1.3;
  }
  .hero-subtitle {
    font-size: 15px;
    line-height: 1.7;
  }
  .hero-cta .btn {
    padding: 12px 22px;
    font-size: 14px;
  }
  .phone-frame {
    width: 180px;
    height: 360px;
    border-radius: 26px;
    padding: 8px;
  }
  .phone-screen {
    border-radius: 18px;
  }
  .float-card {
    font-size: 11px;
    padding: 7px 10px;
    border-radius: 10px;
  }
  .hero-stats {
    justify-content: space-around;
  }
  .stat-num {
    font-size: 26px;
  }
  .stat-label {
    font-size: 12px;
  }
  .value-cards {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .value-card {
    padding: 18px 14px;
  }
  .value-card h3 {
    font-size: 15px;
  }
  .value-card p {
    font-size: 13px;
  }
  .value-card-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
  .value-list-num {
    font-size: 34px;
    min-width: 40px;
  }
  .platform-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .platform-card {
    padding: 22px 18px;
  }
  .platform-specs {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .review-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .review-card:nth-child(even) {
    transform: none;
  }
  .review-card:nth-child(even):hover {
    transform: translateY(-3px);
  }
  .download-banner {
    padding: 32px 22px;
    gap: 28px;
  }
  .download-content h2 {
    font-size: 24px;
  }
  .download-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .dl-btn-group {
    flex-direction: row;
    gap: 10px;
  }
  .store-btn {
    flex: 1;
    min-width: 140px;
    justify-content: center;
  }
  .qr-box {
    margin: 0 auto;
    width: 104px;
    height: 104px;
  }
  .footer-panel {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px 24px 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
  .news-card {
    padding: 18px 18px 16px;
  }
  .news-card-title {
    font-size: 16px;
  }
  .carousel-btn {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }
}
@media (max-width: 575px) {
  .nav-panel {
    overflow: hidden;
  }
  .main-nav {
    order: 3;
    width: 100%;
    flex: 0 0 100%;
    padding-top: 6px;
  }
  .brand-name {
    display: none;
  }
  .nav-cta {
    margin-left: auto;
  }
  .value-cards {
    grid-template-columns: 1fr 1fr;
  }
  .value-list {
    gap: 22px;
  }
  .value-list-item {
    gap: 12px;
    padding-bottom: 20px;
  }
  .value-list-num {
    font-size: 30px;
  }
  .value-list-title {
    font-size: 17px;
  }
  .hero-stats {
    gap: 8px;
  }
  .stat-item {
    min-width: 0;
  }
  .stat-num {
    font-size: 22px;
  }
  .stat-suffix {
    font-size: 14px;
  }
  .platform-specs {
    grid-template-columns: 1fr;
  }
  .showcase-copy h3 {
    font-size: 21px;
  }
  .section-title-wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 30px;
  }
  .section-title-wrap .more-link {
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #2F5D50;
            --accent: #D98E32;
            --dark: #1C2320;
            --bg: #F8F5EE;
            --card: #FFFFFF;
            --panel: #F0ECE3;
            --text: #22261F;
            --text-sub: #6B705C;
            --text-note: #9A9A8A;
            --border: #E6E1D6;
            --success: #3C7A4D;
            --warning: #C0653B;
            --error: #B0483A;
            --disabled-bg: #E8E4DA;
            --disabled-text: #A8A294;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 2px 8px rgba(28,35,32,.04), 0 1px 2px rgba(28,35,32,.06);
            --shadow-hover: 0 12px 32px rgba(28,35,32,.10), 0 4px 8px rgba(28,35,32,.06);
            --container: 1200px;
            --space-lg: 96px;
            --space-md: 48px;
            --ease: cubic-bezier(0.33, 1, 0.68, 1);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }
        :focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1.2;
            text-decoration: none;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s var(--ease);
        }
        .btn-primary { background: var(--accent); color: var(--dark); }
        .btn-primary:hover { background: #E09B45; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(217,142,50,.28); }
        .btn-primary:active { transform: translateY(0); }
        .btn-ghost { background: transparent; border-color: var(--text-sub); color: var(--text); }
        .btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
        .btn-light { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.35); color: #fff; }
        .btn-light:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

        /* ===== Header ===== */
        .site-header { position: sticky; top: 12px; z-index: 100; padding: 0 24px; }
        .nav-panel {
            max-width: var(--container);
            margin: 0 auto;
            background: var(--dark);
            border-radius: var(--radius-lg);
            padding: 10px 16px;
            display: flex;
            align-items: center;
            gap: 20px;
            border: 1px solid rgba(47,93,80,.65);
            box-shadow: 0 8px 28px rgba(28,35,32,.22);
        }
        .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .brand-mark {
            width: 32px; height: 32px;
            border-radius: 8px;
            background: var(--primary);
            display: flex; align-items: center; justify-content: center;
            font-weight: 900; font-size: 16px; color: #fff;
        }
        .brand-name { font-weight: 900; font-size: 18px; color: #fff; letter-spacing: .02em; }
        .main-nav { display: flex; gap: 6px; flex: 1; overflow-x: auto; scrollbar-width: none; }
        .main-nav::-webkit-scrollbar { display: none; }
        .nav-link {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,.08);
            color: rgba(255,255,255,.85);
            font-size: 14px;
            white-space: nowrap;
            transition: background .25s var(--ease), color .25s var(--ease);
        }
        .nav-link:hover { background: rgba(255,255,255,.16); color: #fff; }
        .nav-link.active { background: var(--accent); color: var(--dark); font-weight: 700; }
        .nav-cta { flex-shrink: 0; }
        .hide-sm { display: inline; }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 540px;
            display: flex;
            align-items: center;
            margin-top: 16px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(28,35,32,.92) 0%, rgba(28,35,32,.58) 55%, rgba(28,35,32,.22) 100%);
        }
        .hero-content { position: relative; z-index: 2; padding: 80px 64px; max-width: 680px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(47,93,80,.28);
            border: 1px solid rgba(255,255,255,.22);
            color: #fff;
            border-radius: 6px;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .04em;
            margin-bottom: 20px;
        }
        .hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
        .hero-title {
            font-size: 52px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            letter-spacing: .02em;
            margin-bottom: 16px;
        }
        .hero-sub {
            font-size: 18px;
            color: rgba(255,255,255,.82);
            max-width: 520px;
            margin-bottom: 28px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }
        .hero-meta { font-size: 12px; color: rgba(255,255,255,.55); }
        .hero-stats {
            display: flex;
            gap: 48px;
            border-top: 1px solid rgba(255,255,255,.14);
            padding-top: 28px;
            margin-top: 12px;
        }
        .stat-num { font-size: 30px; font-weight: 900; color: var(--accent); line-height: 1.1; }
        .stat-label { font-size: 13px; color: rgba(255,255,255,.72); margin-top: 2px; }

        /* ===== Section Head ===== */
        .section-head { margin-bottom: 48px; }
        .section-title {
            font-size: 34px;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: .02em;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            margin-bottom: 10px;
        }
        .section-sub { font-size: 16px; color: var(--text-sub); max-width: 620px; }

        /* ===== Alternate Feature ===== */
        .alternate-item {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 72px;
        }
        .alternate-item:last-child { margin-bottom: 0; }
        .alternate-item.reverse { grid-template-columns: 7fr 5fr; }
        .alternate-item.reverse .alt-media { order: -1; }
        .alt-badge {
            display: inline-block;
            background: rgba(47,93,80,.12);
            color: var(--primary);
            border-radius: var(--radius-xs);
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .alt-title { font-size: 24px; font-weight: 900; margin-bottom: 12px; line-height: 1.3; }
        .alt-desc { font-size: 15px; color: var(--text-sub); margin-bottom: 20px; }
        .alt-features { display: flex; flex-direction: column; gap: 10px; }
        .alt-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
        }
        .alt-feature::before {
            content: "";
            width: 8px; height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .alt-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            background: var(--panel);
        }
        .alt-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform .45s var(--ease);
        }
        .alt-media:hover img { transform: scale(1.02); }

        /* ===== Data Band ===== */
        .data-band {
            background: var(--dark);
            border-radius: var(--radius-lg);
            padding: 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-band::after {
            content: "";
            position: absolute;
            right: -80px; top: -80px;
            width: 240px; height: 240px;
            background: radial-gradient(circle, rgba(47,93,80,.35), transparent 70%);
            pointer-events: none;
        }
        .data-band .section-title { color: #fff; border-left-color: var(--accent); }
        .data-band .section-sub { color: rgba(255,255,255,.7); }
        .data-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 40px; }
        .data-item {
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.10);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: background .25s var(--ease), transform .25s var(--ease);
        }
        .data-item:hover { background: rgba(255,255,255,.10); transform: translateY(-3px); }
        .data-num { font-size: 28px; font-weight: 900; color: var(--accent); line-height: 1.2; margin-bottom: 8px; }
        .data-item h3 { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 4px; }
        .data-item p { font-size: 14px; color: rgba(255,255,255,.62); }

        /* ===== Scene ===== */
        .scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
        .scene-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow);
            transition: box-shadow .28s var(--ease), transform .28s var(--ease), border-color .28s var(--ease);
        }
        .scene-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(47,93,80,.35); }
        .scene-num { font-size: 32px; font-weight: 900; color: var(--accent); line-height: 1; font-family: Georgia, "Times New Roman", serif; }
        .scene-body h3 { font-size: 18px; font-weight: 800; margin-bottom: 6px; }
        .scene-body p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

        /* ===== Steps ===== */
        .steps { max-width: 960px; }
        .step-row {
            display: grid;
            grid-template-columns: 90px 1fr 200px;
            gap: 24px;
            align-items: center;
            padding: 36px 0;
            border-bottom: 1px dashed #D8D2C4;
        }
        .step-row:last-child { border-bottom: none; }
        .step-num { font-size: 48px; font-weight: 900; color: var(--accent); line-height: 1; font-family: Georgia, "Times New Roman", serif; }
        .step-info h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
        .step-info p { font-size: 15px; color: var(--text-sub); max-width: 420px; }
        .step-img { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow); }
        .step-img img { width: 100%; height: 120px; object-fit: cover; transition: transform .4s var(--ease); }
        .step-img:hover img { transform: scale(1.03); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 840px; }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
        }
        .faq-item:hover { border-color: rgba(47,93,80,.3); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }
        .faq-icon {
            width: 26px; height: 26px;
            border-radius: 50%;
            background: var(--panel);
            display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
            transition: transform .3s var(--ease), background .3s var(--ease);
            color: var(--primary);
            font-style: normal;
            font-size: 18px;
            line-height: 1;
        }
        .faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(47,93,80,.14); }
        .faq-answer { display: none; padding: 0 24px 20px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-band {
            background:
                linear-gradient(90deg, rgba(28,35,32,.94) 0%, rgba(28,35,32,.72) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 56px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-band h2 { color: #fff; font-size: 30px; font-weight: 900; line-height: 1.3; margin-bottom: 8px; }
        .cta-band p { color: rgba(255,255,255,.72); font-size: 15px; max-width: 480px; }
        .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .site-footer { padding: 16px 24px; }
        .footer-panel {
            max-width: var(--container);
            margin: 0 auto;
            background: var(--dark);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 40px;
            color: rgba(255,255,255,.6);
        }
        .footer-brand .brand-name { font-size: 20px; }
        .footer-desc { font-size: 14px; margin-top: 16px; color: rgba(255,255,255,.58); line-height: 1.7; }
        .btn-dl { margin-top: 20px; }
        .footer-heading { color: rgba(255,255,255,.92); font-size: 15px; font-weight: 700; margin-bottom: 16px; }
        .footer-links { display: flex; flex-direction: column; gap: 8px; }
        .footer-links a { font-size: 14px; color: rgba(255,255,255,.62); transition: color .25s var(--ease), transform .25s var(--ease); }
        .footer-links a:hover { color: var(--accent); transform: translateX(3px); }
        .footer-contact { display: flex; flex-direction: column; gap: 12px; }
        .contact-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255,255,255,.5); }
        .contact-icon {
            width: 30px; height: 30px;
            border-radius: 8px;
            background: rgba(255,255,255,.08);
            display: flex; align-items: center; justify-content: center;
            color: rgba(255,255,255,.7);
            flex-shrink: 0;
        }
        .footer-bottom {
            grid-column: 1 / -1;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid rgba(255,255,255,.10);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255,255,255,.42);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title { font-size: 42px; }
            .alternate-item,
            .alternate-item.reverse { gap: 32px; }
            .step-row { grid-template-columns: 70px 1fr 140px; }
            .footer-panel { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 767px) {
            .section { padding: 48px 0; }
            .container { padding: 0 16px; }
            .nav-panel { gap: 10px; padding: 8px 12px; }
            .nav-cta { padding: 10px 16px; }
            .hero { min-height: 520px; }
            .hero-content { padding: 40px 24px; max-width: 100%; }
            .hero-title { font-size: 34px; }
            .hero-sub { font-size: 16px; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .section-title { font-size: 26px; }
            .section-sub { font-size: 15px; }
            .alternate-item,
            .alternate-item.reverse { grid-template-columns: 1fr; gap: 24px; }
            .alternate-item.reverse .alt-media { order: 0; }
            .alt-media img { height: 240px; }
            .data-band { padding: 32px 24px; }
            .data-grid { grid-template-columns: 1fr; }
            .scene-grid { grid-template-columns: 1fr; }
            .step-row { grid-template-columns: 52px 1fr; padding: 24px 0; }
            .step-img { display: none; }
            .step-num {font-size: 38px; }
            .cta-band { padding: 36px 24px; flex-direction: column; align-items: flex-start; }
            .cta-band h2 { font-size: 24px; }
            .cta-actions { width: 100%; }
            .footer-panel { grid-template-columns: 1fr; padding: 32px 24px; gap: 28px; }
            .footer-bottom { flex-direction: column; gap: 6px; align-items: flex-start; }
        }
        @media (max-width: 575px) {
            .hero-title { font-size: 28px; }
            .hero-actions { flex-direction: column; align-items: stretch; }
            .hero-actions .btn { width: 100%; }
            .hero-stats { gap: 18px; }
            .stat-num { font-size: 24px; }
            .nav-cta .hide-sm { display: none; }
            .nav-cta { padding: 10px 14px; }
            .faq-question { padding: 16px 18px; font-size: 15px; }
            .faq-answer { padding: 0 18px 16px; }
        }

        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
        }

/* roulang page: article */
:root {
  --primary: #2F5D50;
  --primary-dark: #23483E;
  --accent: #D98E32;
  --ink: #1C2320;
  --bg: #F8F5EE;
  --card: #FFFFFF;
  --panel: #F0ECE3;
  --text: #22261F;
  --text-secondary: #6B705C;
  --text-muted: #9A9A8A;
  --border: #E6E1D6;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 2px 8px rgba(28,35,32,.04), 0 1px 2px rgba(28,35,32,.06);
  --shadow-lg: 0 12px 32px rgba(28,35,32,.10), 0 4px 8px rgba(28,35,32,.06);
  --container: 1200px;
  --ease: cubic-bezier(0.33, 1, 0.68, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 12px;
  z-index: 100;
  padding: 0 16px;
}
.nav-panel {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--ink);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  background: var(--primary);
  color: #fff;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
}
.brand-name {
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  letter-spacing: .02em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.85);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.nav-link:hover {
  background: rgba(255,255,255,.16);
  color: #fff;
}
.nav-link.active {
  background: var(--accent);
  color: var(--ink);
}
.nav-cta {
  flex-shrink: 0;
  margin-left: auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn-primary {
  background: var(--accent);
  color: var(--ink);
}
.btn-primary:hover {
  background: #E59A3D;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-ghost {
  background: transparent;
  border-color: #6B705C;
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-dark {
  background: var(--ink);
  color: #fff;
  border-color: rgba(255,255,255,.20);
}
.btn-dark:hover {
  border-color: var(--accent);
  color: #fff;
}
.article-page {
  padding: 40px 0 96px;
}
.article-page .container {
  max-width: 760px;
  padding: 0 24px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  overflow: hidden;
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color .2s var(--ease);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--text-muted);
  flex-shrink: 0;
}
.breadcrumb .crumb-category {
  color: var(--text-secondary);
  white-space: nowrap;
}
.breadcrumb .crumb-current {
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
  min-width: 0;
}
.article-header {
  margin-bottom: 32px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-xs);
  background: rgba(47,93,80,.10);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
}
.article-meta time {
  font-size: 13px;
  color: var(--text-muted);
}
.article-title {
  font-size: 34px;
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--text);
}
.article-content {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}
.article-content > p:first-of-type {
  font-size: 18px;
  line-height: 1.8;
}
.article-content p {
  margin: 1.2em 0;
}
.article-content h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 1.6em 0 .6em;
  line-height: 1.3;
  color: var(--text);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 1.4em 0 .5em;
  line-height: 1.4;
  color: var(--text);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s var(--ease);
}
.article-content a:hover {
  color: var(--primary-dark);
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--panel);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 1.4em 0;
  color: var(--text-secondary);
}
.article-content blockquote p {
  margin: .4em 0;
}
.article-content img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 1.5em 0 .5em;
}
.article-content figure {
  margin: 1.5em 0;
}
.article-content figure img {
  margin: 0 0 8px;
}
.article-content figcaption {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}
.article-content ul,
.article-content ol {
  margin: 1.2em 0;
  padding-left: 1.4em;
}
.article-content ul li,
.article-content ol li {
  margin: .5em 0;
  padding-left: 2px;
}
.article-content ul {
  list-style: disc;
}
.article-content ul li::marker {
  color: var(--primary);
}
.article-content ol {
  list-style: decimal;
}
.article-content ol li::marker {
  color: var(--primary);
  font-weight: 700;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 14px;
}
.article-content th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
}
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
}
.article-content tr:hover td {
  background: rgba(47,93,80,.04);
}
.article-content pre {
  background: var(--ink);
  color: #E8E4DA;
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
  margin: 1.5em 0;
}
.article-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  background: rgba(28,35,32,.06);
  color: var(--primary-dark);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .92em;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 40px 0 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.tag-title {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 4px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  background: var(--panel);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  border: 1px solid transparent;
}
.tag:hover {
  background: rgba(47,93,80,.08);
  color: var(--primary);
  border-color: rgba(47,93,80,.25);
}
.prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 48px;
}
.pn-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: box-shadow .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.pn-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.pn-next {
  text-align: right;
  align-items: flex-end;
}
.pn-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.pn-next .pn-label {
  flex-direction: row-reverse;
}
.pn-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.related-section {
  margin-top: 40px;
}
.section-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 24px;
  color: var(--text);
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: .15em;
  bottom: .15em;
  width: 4px;
  border-radius: 2px;
  background: var(--primary);
}
.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease);
}
.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(47,93,80,.30);
}
.related-card--feature {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: stretch;
}
.related-cover {
  overflow: hidden;
  position: relative;
  background: var(--panel);
}
.related-card:not(.related-card--feature) .related-cover {
  aspect-ratio: 16 / 10;
}
.related-card--feature .related-cover {
  width: 58%;
  min-height: 260px;
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s var(--ease);
}
.related-card:hover .related-cover img {
  transform: scale(1.02);
}
.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  justify-content: center;
}
.related-card--feature .related-body {
  width: 42%;
  padding: 28px;
}
.related-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
}
.related-card--feature .related-title {
  font-size: 20px;
}
.related-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-footer {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}
.no-content {
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 72px 24px;
  text-align: center;
}
.no-content-mark {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--panel);
  color: var(--text-muted);
  font-size: 28px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.no-content-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.no-content-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.site-footer {
  padding: 0 16px 16px;
}
.footer-panel {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1.6fr;
  gap: 40px;
}
.footer-brand .brand-name {
  font-size: 18px;
}
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,.60);
  line-height: 1.6;
  margin: 16px 0 20px;
  max-width: 320px;
}
.btn-dl {
  padding: 10px 22px;
}
.footer-heading {
  color: rgba(255,255,255,.90);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: rgba(255,255,255,.60);
  font-size: 14px;
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-links a:hover {
  color: var(--accent);
  transform: translateX(3px);
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.60);
  font-size: 14px;
  word-break: break-all;
}
.contact-icon {
  color: var(--accent);
  flex-shrink: 0;
}
.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  margin-top: 8px;
  border-top: 1px solid rgba(255,255,255,.10);
  color: rgba(255,255,255,.40);
  font-size: 12px;
}
@media (max-width: 1024px) {
  .article-title { font-size: 30px; }
  .footer-panel {
    grid-template-columns: 1fr 1fr;
    padding: 40px 32px;
  }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 767px) {
  .site-header { top: 8px; padding: 0 12px; }
  .nav-panel {
    padding: 10px 12px;
    gap: 8px;
    overflow: hidden;
  }
  .brand-name { display: none; }
  .brand-mark { width: 32px; height: 32px; font-size: 16px; }
  .main-nav {
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    gap: 6px;
  }
  .main-nav::-webkit-scrollbar { display: none; }
  .nav-link {
    padding: 7px 12px;
    font-size: 13px;
  }
  .hide-sm { display: none; }
  .nav-cta .btn {
    padding: 10px 14px;
  }
  .article-page { padding: 24px 0 64px; }
  .article-page .container { padding: 0 16px; }
  .article-title { font-size: 26px; }
  .article-content > p:first-of-type { font-size: 17px; }
  .article-content h2 { font-size: 24px; }
  .article-content h3 { font-size: 19px; }
  .article-content blockquote { padding: 14px 16px; }
  .prev-next { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card--feature {
    grid-column: auto;
    flex-direction: column;
  }
  .related-card--feature .related-cover {
    width: 100%;
    min-height: 180px;
  }
  .related-card--feature .related-body {
    width: 100%;
    padding: 20px;
  }
  .related-card:not(.related-card--feature) .related-cover {
    aspect-ratio: 16 / 9;
  }
  .section-title { font-size: 22px; }
  .footer-panel {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 28px;
  }
  .footer-brand { grid-column: auto; }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}
@media (max-width: 520px) {
  .nav-panel { align-items: center; }
  .nav-link { font-size: 12px; padding: 6px 10px; }
  .article-title { font-size: 24px; }
  .crumb-current { max-width: 120px; }
  .related-footer .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root{
  --primary:#2F5D50;
  --primary-dark:#244A40;
  --primary-light:rgba(47,93,80,.10);
  --accent:#D98E32;
  --accent-light:rgba(217,142,50,.12);
  --dark:#1C2320;
  --dark-soft:#242C28;
  --bg:#F8F5EE;
  --card:#FFFFFF;
  --panel:#F0ECE3;
  --text:#22261F;
  --text-sub:#6B705C;
  --text-note:#9A9A8A;
  --border:#E6E1D6;
  --success:#3C7A4D;
  --warning:#C0653B;
  --error:#B0483A;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(28,35,32,.04),0 1px 2px rgba(28,35,32,.06);
  --shadow-hover:0 12px 32px rgba(28,35,32,.10),0 4px 8px rgba(28,35,32,.06);
  --transition:cubic-bezier(0.33,1,0.68,1) .22s;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:none}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
button,input{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
@media(max-width:767px){.section{padding:48px 0}}

/* ---------- Button ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-sm);
  padding:12px 24px;
  font-weight:700;
  font-size:15px;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn-primary{
  background:var(--accent);
  color:var(--dark);
  box-shadow:0 6px 18px rgba(217,142,50,.28);
}
.btn-primary:hover{
  background:#e39a42;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(217,142,50,.34);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-ghost:hover{
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-2px);
}
.btn-dark{
  background:var(--dark);
  color:#fff;
  border-color:rgba(255,255,255,.2);
}
.btn-dark:hover{
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  color:var(--primary);
  font-weight:700;
  font-size:15px;
}
.btn-link:hover{color:var(--accent)}
.btn-link svg{transition:transform var(--transition)}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- Badge ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  border-radius:6px;
  padding:2px 8px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-light);
  color:var(--primary);
}
.badge-hot{
  background:var(--accent-light);
  color:var(--accent);
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:12px;
  z-index:100;
  padding:0 24px;
}
.nav-panel{
  max-width:1200px;
  margin:0 auto;
  background:var(--dark);
  border-radius:var(--radius-lg);
  padding:10px 16px;
  display:flex;
  align-items:center;
  gap:18px;
  border:1px solid var(--primary);
  box-shadow:0 12px 32px rgba(28,35,32,.22);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--primary),#3D7A68);
  color:#fff;
  font-weight:900;
  font-size:17px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.brand-name{
  color:#fff;
  font-weight:900;
  font-size:19px;
  letter-spacing:.02em;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
}
.main-nav::-webkit-scrollbar{display:none}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.85);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background var(--transition),color var(--transition);
}
.nav-link:hover{background:rgba(255,255,255,.16);color:#fff}
.nav-link.active{
  background:var(--accent);
  color:var(--dark);
}
.nav-cta{
  flex-shrink:0;
  padding:10px 18px;
  font-size:14px;
}
@media(max-width:767px){
  .site-header{top:8px;padding:0 16px}
  .nav-panel{gap:10px;padding:10px 12px}
  .hide-sm{display:none}
  .nav-cta{padding:8px 12px}
  .brand-name{font-size:17px}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  border-radius:var(--radius-lg);
  max-width:1200px;
  margin:24px auto 0;
  padding:0;
  overflow:hidden;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  min-height:620px;
  display:flex;
  align-items:center;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(28,35,32,.92) 20%,rgba(28,35,32,.55) 62%,rgba(28,35,32,.18) 100%);
}
.hero-content{
  position:relative;
  z-index:2;
  padding:96px 64px;
  max-width:680px;
  color:#fff;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:24px;
  letter-spacing:.04em;
}
.hero-title{
  font-size:52px;
  font-weight:900;
  line-height:1.2;
  letter-spacing:.02em;
  margin-bottom:20px;
}
.hero-sub{
  font-size:18px;
  color:rgba(255,255,255,.82);
  line-height:1.7;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:24px;
}
.hero-meta{
  font-size:12px;
  color:rgba(255,255,255,.55);
  display:flex;
  gap:16px;
  align-items:center;
}
.hero-stats{
  position:relative;
  z-index:2;
  display:flex;
  gap:0;
  margin-top:auto;
  border-top:1px solid rgba(255,255,255,.14);
  background:rgba(28,35,32,.55);
  backdrop-filter:blur(6px);
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
}
.hero-stat{
  flex:1;
  padding:24px 32px;
  color:#fff;
}
.hero-stat + .hero-stat{border-left:1px solid rgba(255,255,255,.12)}
.hero-stat-num{
  font-size:32px;
  font-weight:900;
  color:var(--accent);
  line-height:1.2;
}
.hero-stat-label{
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-top:4px;
}
@media(max-width:991px){
  .hero{min-height:0}
  .hero-content{padding:72px 40px}
  .hero-title{font-size:40px}
  .hero-stat-num{font-size:26px}
  .hero-stat{padding:20px}
}
@media(max-width:767px){
  .hero{margin:16px 16px 0;border-radius:18px}
  .hero-content{padding:48px 24px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-stats{flex-direction:column}
  .hero-stat + .hero-stat{border-left:none;border-top:1px solid rgba(255,255,255,.12)}
  .hero-stat{text-align:center}
  .hero-meta{flex-wrap:wrap}
}

/* ---------- Section Heading ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:48px;
}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.08em;
  margin-bottom:8px;
}
.section-head .kicker::before{
  content:'';
  width:4px;
  height:18px;
  background:var(--accent);
  border-radius:2px;
}
.section-head h2{
  font-size:34px;
  font-weight:900;
  line-height:1.25;
  letter-spacing:.01em;
}
.section-head p{
  color:var(--text-sub);
  font-size:15px;
  margin-top:10px;
  max-width:560px;
}
.section-head .more{flex-shrink:0}
@media(max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .section-head h2{font-size:26px}
}

/* ---------- Scenario ---------- */
.scenario-grid{
  display:grid;
  grid-template-columns:7fr 4fr;
  gap:32px;
  margin-bottom:32px;
}
.scenario-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:36px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--transition),transform var(--transition);
}
.scenario-card:hover{box-shadow:var(--shadow-hover)}
.scenario-card-main{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
  border:none;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:260px;
}
.scenario-card-main .badge{background:rgba(255,255,255,.18);color:#fff}
.scenario-card-secondary{min-height:260px}
.scenario-icon{
  width:44px;
  height:44px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-light);
  color:var(--primary);
  margin-bottom:20px;
}
.scenario-card-main .scenario-icon{background:rgba(255,255,255,.14);color:#fff}
.scenario-card h3{font-size:22px;font-weight:900;margin-bottom:10px}
.scenario-card p{color:var(--text-sub);font-size:15px;line-height:1.7}
.scenario-card-main p{color:rgba(255,255,255,.78)}
.scenario-strip{
  grid-column:1/-1;
  background:var(--panel);
  border-radius:var(--radius-md);
  padding:24px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.scenario-strip strong{font-size:18px;color:var(--text)}
.scenario-strip span{color:var(--text-sub);font-size:14px}
@media(max-width:991px){.scenario-grid{grid-template-columns:1fr}}
@media(max-width:767px){
  .scenario-card{padding:24px}
  .scenario-card-main,.scenario-card-secondary{min-height:0}
}

/* ---------- Steps ---------- */
.steps-section{
  background:var(--panel);
  border-radius:var(--radius-lg);
}
.steps-inner{padding:80px 0}
.step-list{max-width:900px;margin:0 auto}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:80px 1fr 240px;
  gap:32px;
  align-items:center;
  padding-bottom:56px;
}
.step-item:last-child{padding-bottom:0}
.step-item:not(:last-child)::after{
  content:'';
  position:absolute;
  left:39px;
  top:88px;
  bottom:0;
  border-left:2px dashed #C9C4B8;
}
.step-num{
  font-size:48px;
  font-weight:900;
  font-family:"Inter","DIN Alternate","PingFang SC",sans-serif;
  color:var(--accent);
  line-height:1;
  width:80px;
  height:80px;
  border-radius:14px;
  background:#fff;
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-sm);
}
.step-body h3{font-size:22px;font-weight:900;margin-bottom:8px;color:var(--text)}
.step-body p{color:var(--text-sub);font-size:15px;line-height:1.7;max-width:460px}
.step-img{
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  position:relative;
}
.step-img img{width:100%;height:160px;object-fit:cover;transition:transform .3s ease}
.step-img:hover img{transform:scale(1.03)}
.step-img .step-img-tag{
  position:absolute;
  left:12px;
  bottom:12px;
  background:rgba(28,35,32,.78);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:6px;
  backdrop-filter:blur(4px);
}
@media(max-width:991px){
  .step-item{grid-template-columns:64px 1fr;gap:24px}
  .step-img{grid-column:2;max-width:340px}
  .step-item:not(:last-child)::after{left:31px}
  .step-num{width:64px;height:64px;font-size:38px}
}
@media(max-width:767px){
  .steps-inner{padding:40px 20px}
  .step-item{grid-template-columns:48px 1fr;gap:16px;padding-bottom:40px}
  .step-num{width:48px;height:48px;font-size:28px;border-radius:10px}
  .step-item:not(:last-child)::after{left:23px}
  .step-img{grid-column:2;max-width:100%}
  .step-body h3{font-size:19px}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow-hover)}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:none;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  text-align:left;
}
.faq-question:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;border-radius:var(--radius-md)}
.faq-icon{
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--panel);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  color:var(--primary);
  transition:transform var(--transition),background var(--transition);
}
.faq-icon svg{width:14px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--transition);
}
.faq-answer-inner{
  padding:0 24px 20px;
  color:var(--text-sub);
  font-size:14px;
  line-height:1.75;
}

/* ---------- Featured Grid ---------- */
.featured-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.feature-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--transition),transform var(--transition);
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.feature-card-img{
  position:relative;
  height:210px;
  overflow:hidden;
}
.feature-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.feature-card:hover .feature-card-img img{transform:scale(1.04)}
.feature-card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(28,35,32,0) 40%,rgba(28,35,32,.35) 100%);
}
.feature-card-content{padding:24px 28px 28px}
.feature-card-content .badge{margin-bottom:12px}
.feature-card-content h3{
  font-size:19px;
  font-weight:900;
  line-height:1.4;
  margin-bottom:8px;
  color:var(--text);
}
.feature-card-content p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.65;
  margin-bottom:16px;
}
@media(max-width:767px){
  .featured-grid{grid-template-columns:1fr;gap:20px}
  .feature-card-img{height:190px}
}

/* ---------- CTA Band ---------- */
.cta-band{
  border-radius:var(--radius-lg);
  max-width:1200px;
  margin:0 auto 96px;
  background:var(--dark);
  padding:0;
  overflow:hidden;
  position:relative;
}
.cta-band::before{
  content:'';
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.22;
}
.cta-band-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:56px 64px;
  flex-wrap:wrap;
}
.cta-band h2{
  color:#fff;
  font-size:32px;
  font-weight:900;
  line-height:1.3;
  margin-bottom:10px;
}
.cta-band p{
  color:rgba(255,255,255,.72);
  font-size:15px;
  max-width:480px;
}
.cta-buttons{
  display:flex;
  gap:16px;
  align-items:center;
  flex-wrap:wrap;
}
.cta-store-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  padding:12px 20px;
  border-radius:12px;
  font-weight:700;
  font-size:14px;
  line-height:1.2;
  transition:border-color var(--transition),background var(--transition),transform var(--transition);
}
.cta-store-btn:hover{border-color:var(--accent);background:rgba(255,255,255,.14);transform:translateY(-2px)}
.cta-store-btn small{display:block;font-weight:400;font-size:11px;color:rgba(255,255,255,.6)}
.cta-fine{
  font-size:12px;
  color:rgba(255,255,255,.5);
  margin-top:14px;
}
@media(max-width:767px){
  .cta-band{margin:0 16px 48px}
  .cta-band-inner{padding:40px 24px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:26px}
  .cta-buttons{width:100%}
  .cta-store-btn{flex:1;justify-content:center}
}

/* ---------- Footer ---------- */
.site-footer{max-width:1200px;margin:0 auto 16px;padding:0 24px}
@media(max-width:767px){.site-footer{padding:0 16px}}
.footer-panel{
  background:var(--dark);
  border-radius:var(--radius-lg);
  padding:56px 48px 28px;
  display:grid;
  grid-template-columns:2fr 1fr 1.4fr;
  gap:48px;
  color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.06);
}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.58);
  max-width:320px;
  margin-bottom:20px;
}
.footer-heading{
  color:rgba(255,255,255,.9);
  font-size:16px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:14px;
}
.footer-links a{color:rgba(255,255,255,.66);transition:color var(--transition)}
.footer-links a:hover{color:var(--accent)}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:14px;
  font-size:14px;
}
.contact-item{
  display:flex;
  align-items:center;
  gap:10px;
  color:rgba(255,255,255,.66);
  word-break:break-all;
}
.contact-icon{
  width:26px;
  height:26px;
  border-radius:7px;
  background:rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  color:var(--accent);
}
.footer-bottom{
  grid-column:1/-1;
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  margin-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:rgba(255,255,255,.42);
}
@media(max-width:767px){
  .footer-panel{grid-template-columns:1fr;gap:32px;padding:40px 24px 24px}
  .footer-bottom{flex-direction:column;gap:6px;align-items:flex-start}
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--transition),transform .5s var(--transition)}
.reveal.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}