/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #171C2F;
  --color-primary-dark: #1D2338;
  --color-accent: #E0A458;
  --color-accent-hover: #D1903F;
  --color-accent-light: #E9B56F;
  --color-bg: #F7F4EE;
  --color-card: #FFFFFF;
  --color-text: #272B3C;
  --color-text-secondary: #687086;
  --color-text-muted: #9CA3AF;
  --color-teal: #46C3B2;
  --color-error: #D96C61;
  --color-border: rgba(23, 28, 47, 0.08);
  --color-border-dark: rgba(255, 255, 255, 0.12);
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-banner: 32px;
  --radius-tag: 6px;
  --shadow-card: 0 1px 2px rgba(23, 28, 47, 0.04), 0 8px 24px rgba(23, 28, 47, 0.06);
  --shadow-hover: 0 0 0 1px rgba(224, 164, 88, 0.25), 0 12px 40px rgba(23, 28, 47, 0.12);
  --shadow-dark: 0 0 40px rgba(255, 255, 255, 0.06);
  --container-width: 1200px;
}

/* ===== 基础重置 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--color-accent-hover);
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container-site {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (max-width: 640px) {
  .container-site {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ===== 区块通用 ===== */
.section {
  padding: 96px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-head p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(247, 244, 238, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--color-primary);
  color: var(--color-accent);
}

.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-text);
  background: rgba(23, 28, 47, 0.04);
}

.nav-link.active {
  color: var(--color-accent-hover);
  background: rgba(224, 164, 88, 0.1);
  font-weight: 600;
}

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

.search-box {
  position: relative;
  width: 240px;
}

.search-box input {
  width: 100%;
  height: 40px;
  padding: 0 40px 0 16px;
  border-radius: 20px;
  border: 1px solid transparent;
  background: rgba(23, 28, 47, 0.06);
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: all 0.2s ease;
}

.search-box input:focus {
  background: var(--color-card);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(224, 164, 88, 0.2);
}

.search-box .search-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.btn-login {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-login:hover {
  background: rgba(23, 28, 47, 0.06);
  color: var(--color-text);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  background: var(--color-accent);
  color: #14182A;
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--color-accent-light);
  color: #14182A;
  box-shadow: 0 4px 16px rgba(224, 164, 88, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px) scale(0.98);
}

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 10px;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
  background: transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border-color: #FFFFFF;
}

/* 汉堡按钮 */
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: rgba(23, 28, 47, 0.08);
  transition: background 0.2s ease;
}

.hamburger:hover {
  background: rgba(23, 28, 47, 0.14);
}

.hamburger svg {
  width: 22px;
  height: 22px;
  color: var(--color-text);
}

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--color-card);
  z-index: 110;
  box-shadow: -8px 0 32px rgba(23, 28, 47, 0.2);
  transition: right 0.3s ease;
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(23, 28, 47, 0.4);
  z-index: 105;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer .drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.mobile-drawer .drawer-close {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(23, 28, 47, 0.06);
  transition: background 0.2s ease;
}

.mobile-drawer .drawer-close:hover {
  background: rgba(23, 28, 47, 0.12);
}

.mobile-drawer .drawer-nav {
  display: flex;
  flex-direction: column;
}

.mobile-drawer .drawer-nav a {
  font-size: 18px;
  line-height: 48px;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.2s ease;
}

.mobile-drawer .drawer-nav a:hover {
  color: var(--color-accent-hover);
  padding-left: 8px;
}

.mobile-drawer .drawer-nav a.active {
  color: var(--color-accent-hover);
  font-weight: 700;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 80px 0 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0, transparent 50%),
    radial-gradient(circle at 40% 70%, rgba(255, 255, 255, 0.04) 0, transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.06) 0, transparent 55%),
    radial-gradient(circle at 10% 80%, rgba(255, 255, 255, 0.04) 0, transparent 40%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.03) 40%, transparent 45%, transparent 70%, rgba(255, 255, 255, 0.02) 90%);
  pointer-events: none;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(120deg, rgba(23, 28, 47, 0.9) 0%, rgba(23, 28, 47, 0.75) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
  padding-top: 32px;
  padding-bottom: 48px;
}

.hero-content {
  max-width: 560px;
  flex: 0 0 auto;
}

.hero-content h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* 手机模型 */
.hero-visual {
  position: relative;
  flex-shrink: 0;
  width: 280px;
  margin-right: 40px;
}

.phone-mockup {
  width: 260px;
  height: 530px;
  border-radius: 36px;
  background: #1D2338;
  border: 2px solid rgba(255, 255, 255, 0.15);
  position: relative;
  padding: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-notch {
  width: 100px;
  height: 24px;
  background: #171C2F;
  border-radius: 0 0 16px 16px;
  margin: 0 auto 10px;
  position: relative;
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: calc(100% - 38px);
  background: linear-gradient(160deg, #1D2338 0%, #171C2F 100%);
  border-radius: 24px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.phone-app-logo {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  padding: 8px 0;
}

.phone-screen .login-row {
  height: 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.phone-screen .login-btn-line {
  height: 36px;
  border-radius: 10px;
  background: var(--color-accent);
  opacity: 0.85;
  margin-top: 8px;
}

.phone-screen .login-link-line {
  display: flex;
  justify-content: space-between;
  padding-top: 8px;
}

.phone-screen .login-link-line span {
  width: 60px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
  display: block;
}

/* 浮层卡片 */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(29, 35, 56, 0.92);
  border: 1px solid rgba(224, 164, 88, 0.5);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  z-index: 3;
}

.float-card .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.float-card svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.float-card.card-1 {
  top: 120px;
  left: -40px;
}

.float-card.card-2 {
  bottom: 120px;
  right: -50px;
}

/* 数据条 */
.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
  text-align: center;
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: #FFFFFF;
  font-variant-numeric: tabular-nums;
  display: block;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  display: block;
  margin-top: 6px;
  letter-spacing: 0.02em;
}

/* ===== 功能轮播 ===== */
.features {
  background: var(--color-bg);
}

.carousel-wrap {
  position: relative;
}

.carousel-viewport {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  margin: 0 -4px;
  padding: 4px;
}

.carousel-viewport::-webkit-scrollbar {
  display: none;
}

.carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 0.4s ease;
}

.carousel-slide {
  flex: 0 0 calc(50% - 12px);
  scroll-snap-align: start;
}

@media (max-width: 768px) {
  .carousel-slide {
    flex: 0 0 100%;
  }
}

.feature-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all 0.3s ease;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-img {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--color-primary);
}

.feature-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.feature-card:hover .feature-img img {
  transform: scale(1.03);
}

.feature-body {
  padding: 24px;
}

.feature-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.feature-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 轮播控制 */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 32px;
}

.carousel-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  transition: all 0.2s ease;
}

.carousel-arrow:hover {
  background: var(--color-accent);
  color: #14182A;
  border-color: var(--color-accent);
}

.carousel-arrow svg {
  width: 18px;
  height: 18px;
}

.carousel-dots {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  margin-right: 12px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(23, 28, 47, 0.2);
  transition: all 0.3s ease;
  padding: 0;
}

.carousel-dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 4px;
}

/* ===== 系统要求 ===== */
.requirements {
  background: var(--color-primary-dark);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.requirements::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.05) 0, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.04) 0, transparent 35%),
    radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.06) 0, transparent 30%);
  pointer-events: none;
}

.requirements .section-head h2 {
  color: #FFFFFF;
}

.requirements .section-head p {
  color: rgba(255, 255, 255, 0.6);
}

.req-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.req-col {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: all 0.3s ease;
}

.req-col:hover {
  border-color: rgba(224, 164, 88, 0.3);
  box-shadow: var(--shadow-dark);
}

.platform-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border-dark);
}

.platform-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent);
  color: #14182A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}

.platform-head h3 {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
}

.req-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 15px;
}

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

.req-list li .req-name {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  flex-shrink: 0;
  min-width: 100px;
}

.req-list li .req-value {
  color: #FFFFFF;
  font-weight: 500;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ===== 资讯区 ===== */
.news-section {
  background: var(--color-bg);
}

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

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

@media (max-width: 640px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

.news-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.news-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: var(--color-text);
}

.news-card-link:hover {
  color: var(--color-text);
}

.news-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--color-primary);
}

.news-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.05);
}

.news-body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(224, 164, 88, 0.12);
  color: var(--color-accent-hover);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.news-card-link:hover .news-title {
  color: var(--color-accent-hover);
}

.news-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}

.news-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
}

.news-more {
  color: var(--color-accent-hover);
  font-weight: 500;
  font-size: 13px;
}

/* 空态 */
.cms-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.5);
  color: var(--color-text-muted);
  font-size: 15px;
  gap: 12px;
  text-align: center;
}

.cms-empty svg {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
  opacity: 0.4;
}

/* ===== 评价墙 ===== */
.testimonials {
  background: var(--color-primary);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.06) 0, transparent 45%),
    radial-gradient(circle at 80% 75%, rgba(255, 255, 255, 0.05) 0, transparent 50%),
    radial-gradient(circle at 55% 40%, rgba(224, 164, 88, 0.05) 0, transparent 35%);
  pointer-events: none;
}

.testimonials .section-head h2 {
  color: #FFFFFF;
}

.testimonials .section-head p {
  color: rgba(255, 255, 255, 0.6);
}

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

@media (max-width: 768px) {
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.testimonial-card:hover {
  border-color: rgba(224, 164, 88, 0.3);
  box-shadow: var(--shadow-dark);
  transform: translateY(-4px);
}

.stars {
  display: flex;
  gap: 3px;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.testimonial-text {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 20px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #14182A;
  background: var(--color-accent);
  flex-shrink: 0;
}

.testimonial-avatar.avatar-2 {
  background: var(--color-teal);
}

.testimonial-avatar.avatar-3 {
  background: #A78BFA;
  color: #FFFFFF;
}

.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
}

.testimonial-note {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 4px;
}

/* ===== 下载区 ===== */
.download-section {
  background: #FFFFFF;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 880px;
  margin: 0 auto 20px;
}

@media (max-width: 768px) {
  .download-grid {
    grid-template-columns: 1fr;
  }
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  border-radius: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
  min-height: 64px;
}

.download-btn:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.download-btn:hover .download-main {
  color: var(--color-accent-hover);
}

.download-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(23, 28, 47, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.download-icon svg {
  width: 22px;
  height: 22px;
}

.download-text {
  display: flex;
  flex-direction: column;
}

.download-main {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  transition: color 0.2s ease;
}

.download-sub {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.3;
}

.qr-wrap {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-primary);
}

.qr-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.download-note {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-bg);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(224, 164, 88, 0.15), 0 8px 24px rgba(23, 28, 47, 0.06);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--color-accent-hover);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(23, 28, 47, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.3s ease;
  color: var(--color-text-secondary);
}

.faq-icon svg {
  width: 14px;
  height: 14px;
}

.faq-item[open] .faq-icon {
  background: var(--color-accent);
  color: #14182A;
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  background: var(--color-primary);
  padding: 72px 0;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.07) 0, transparent 40%),
    radial-gradient(circle at 70% 20%, rgba(255, 255, 255, 0.05) 0, transparent 35%),
    radial-gradient(circle at 85% 70%, rgba(255, 255, 255, 0.06) 0, transparent 40%);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(270deg, rgba(224, 164, 88, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 28px;
  max-width: 480px;
}

.cta-deco {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  flex-shrink: 0;
}

.cta-deco::before {
  content: '';
  position: absolute;
  inset: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 164, 88, 0.3) 0%, transparent 60%);
}

.cta-deco::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1px dashed rgba(224, 164, 88, 0.3);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.03) 0, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.03) 0, transparent 45%);
  pointer-events: none;
}

.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand .brand-text {
  color: #FFFFFF;
}

.footer-brand .brand .brand-icon {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-accent);
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 240px;
}

.footer-icp {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  transition: all 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-contact li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== 响应式导航 ===== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .search-box {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .header-inner {
    gap: 12px;
  }
  .btn-login {
    padding: 8px 12px;
    font-size: 14px;
  }
  .hero-inner {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 48px;
  }
  .hero-inner {
    flex-direction: column;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 32px;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-visual {
    margin: 24px auto 0;
    transform: scale(0.9);
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .stat-num {
    font-size: 26px;
  }
  .req-grid {
    grid-template-columns: 1fr;
  }
  .float-card.card-1 {
    left: -10px;
  }
  .float-card.card-2 {
    right: -10px;
  }
  .download-grid {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    flex-direction: column;
    text-align: left;
  }
  .cta-deco {
    display: none;
  }
  .btn-primary, .btn-outline-light {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 48px 0;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .header-actions .btn-primary {
    display: none;
  }
  .brand-text {
    font-size: 18px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .stat-num {
    font-size: 22px;
  }
}

/* ===== 可访问性 ===== */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 星点装饰样式（仅深色区） */
.star-field {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* roulang page: category1 */
:root {
    --primary: #171C2F;
    --primary-2: #1D2338;
    --accent: #E0A458;
    --accent-hover: #D1903F;
    --accent-soft: rgba(224, 164, 88, 0.14);
    --bg: #F7F4EE;
    --card: #FFFFFF;
    --text: #272B3C;
    --text-2: #687086;
    --text-3: #9CA3AF;
    --success: #46C3B2;
    --danger: #D96C61;
    --border: rgba(23, 28, 47, 0.08);
    --border-dark: rgba(255, 255, 255, 0.12);
    --radius: 16px;
    --radius-lg: 32px;
    --shadow: 0 1px 2px rgba(23, 28, 47, 0.04), 0 8px 24px rgba(23, 28, 47, 0.06);
    --shadow-hover: 0 0 0 1px rgba(224, 164, 88, 0.25), 0 12px 40px rgba(23, 28, 47, 0.12);
    --font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.75;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    font-variant-numeric: tabular-nums;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; background-color: var(--primary); }
  button, input { font: inherit; border: none; outline: none; }
  ul, ol, dl { list-style: none; }
  h1, h2, h3, h4 { line-height: 1.3; }
  h1 { font-weight: 800; letter-spacing: -0.02em; }
  h2 { font-weight: 800; letter-spacing: -0.01em; }
  h3 { font-weight: 700; }

  .container-site {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  .section { padding: 96px 0; }

  .night-sky {
    background-color: var(--primary);
    background-image:
      radial-gradient(1px 1px at 18% 28%, rgba(255,255,255,0.7), transparent),
      radial-gradient(1.5px 1.5px at 38% 72%, rgba(255,255,255,0.5), transparent),
      radial-gradient(1px 1px at 62% 22%, rgba(255,255,255,0.45), transparent),
      radial-gradient(2px 2px at 82% 58%, rgba(255,255,255,0.55), transparent),
      radial-gradient(1px 1px at 92% 18%, rgba(255,255,255,0.35), transparent),
      radial-gradient(1px 1px at 48% 88%, rgba(255,255,255,0.4), transparent);
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 244, 238, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    height: 72px;
    display: flex;
    align-items: center;
  }
  .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; }
  .brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--primary); white-space: nowrap; }
  .brand-icon {
    width: 30px; height: 30px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .main-nav { display: flex; gap: 4px; }
  .main-nav .nav-link {
    padding: 9px 14px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-2);
    transition: color 0.2s, background 0.2s;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .main-nav .nav-link:hover { color: var(--primary); background: rgba(23, 28, 47, 0.05); }
  .main-nav .nav-link.active { color: var(--primary); background: var(--accent-soft); }
  .nav-actions { display: flex; align-items: center; gap: 12px; }
  .search-box input {
    width: 220px;
    height: 40px;
    border-radius: 20px;
    background: rgba(23, 28, 47, 0.06);
    border: 2px solid transparent;
    padding: 0 18px;
    font-size: 14px;
    transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
  }
  .search-box input:focus {
    background: #fff;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(224, 164, 88, 0.18);
  }
  .nav-login { font-size: 15px; font-weight: 600; color: var(--text-2); min-height: 44px; display: inline-flex; align-items: center; transition: color 0.2s; }
  .nav-login:hover { color: var(--primary); }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    border: 1px solid transparent;
  }
  .btn-primary { background: var(--accent); color: #14182A; }
  .btn-primary:hover { background: #E9B56F; box-shadow: 0 4px 18px rgba(224, 164, 88, 0.38); transform: translateY(-1px); }
  .btn-primary:active { transform: scale(0.98); }
  .btn-outline { background: transparent; border-color: rgba(255, 255, 255, 0.7); color: #fff; }
  .btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
  .btn-nav { height: 44px; padding: 0 20px; font-size: 15px; }

  .menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(23, 28, 47, 0.06);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
  }
  .menu-toggle span { display: block; width: 20px; height: 2px; background: var(--primary); border-radius: 2px; transition: transform 0.2s; }
  .menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .mobile-drawer {
    display: none;
    position: fixed;
    top: 72px;
    right: 0;
    bottom: 0;
    width: 300px;
    max-width: 82vw;
    background: var(--bg);
    border-left: 1px solid var(--border);
    box-shadow: -12px 0 40px rgba(23, 28, 47, 0.18);
    padding: 32px 24px;
    z-index: 99;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }
  .mobile-drawer.open { transform: translateX(0); }
  .drawer-link {
    display: block;
    font-size: 18px;
    font-weight: 600;
    line-height: 48px;
    color: var(--text-2);
    border-bottom: 1px solid var(--border);
    transition: color 0.2s;
  }
  .drawer-link:hover { color: var(--primary); }
  .drawer-link.active { color: var(--primary); }
  .mobile-drawer .btn { margin-top: 28px; width: 100%; }

  /* ===== Hero Category ===== */
  .hero-category {
    background-image: linear-gradient(90deg, rgba(23, 28, 47, 0.9) 0%, rgba(23, 28, 47, 0.78) 100%), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 88px 0 72px;
    position: relative;
    overflow: hidden;
  }
  .hero-breadcrumb { font-size: 14px; color: rgba(255, 255, 255, 0.6); display: flex; align-items: center; gap: 8px; margin-bottom: 24px; }
  .hero-breadcrumb a { transition: color 0.2s; }
  .hero-breadcrumb a:hover { color: var(--accent); }
  .hero-breadcrumb .sep { opacity: 0.5; }
  .hero-title { font-size: 42px; line-height: 1.2; margin-bottom: 18px; }
  .hero-sub { font-size: 17px; line-height: 1.7; color: rgba(255, 255, 255, 0.75); max-width: 620px; margin-bottom: 32px; }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 640px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    padding-top: 28px;
  }
  .hero-stats div { display: flex; flex-direction: column; }
  .hero-stats dd { font-size: 26px; font-weight: 800; color: #fff; line-height: 1.3; }
  .hero-stats dt { font-size: 13px; color: rgba(255, 255, 255, 0.55); margin-top: 4px; }

  /* ===== Section Head ===== */
  .section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
  .section-kicker { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent-hover); background: var(--accent-soft); border-radius: 6px; padding: 6px 14px; margin-bottom: 16px; letter-spacing: 0.02em; }
  .section-head h2 { font-size: 32px; margin-bottom: 12px; }
  .section-head p { font-size: 16px; color: var(--text-2); }

  /* ===== Feature Card ===== */
  .feature-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow);
    margin-bottom: 32px;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .feature-card.reverse .feature-media { order: 2; }
  .feature-media {
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--primary);
  }
  .feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
  .feature-card:hover .feature-media img { transform: scale(1.03); }
  .feature-body { padding: 8px 0; }
  .card-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-hover);
    background: var(--accent-soft);
    border-radius: 6px;
    padding: 5px 12px;
    margin-bottom: 16px;
  }
  .feature-body h3 { font-size: 24px; margin-bottom: 12px; }
  .feature-body p { font-size: 15px; color: var(--text-2); line-height: 1.8; margin-bottom: 18px; }
  .feature-points { margin-bottom: 20px; }
  .feature-points li {
    position: relative;
    padding-left: 24px;
    font-size: 15px;
    color: var(--text);
    margin-bottom: 8px;
  }
  .feature-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
  }
  .text-link { font-size: 15px; font-weight: 600; color: var(--primary); border-bottom: 1px dashed rgba(23, 28, 47, 0.3); transition: color 0.2s, border-color 0.2s; }
  .text-link:hover { color: var(--accent-hover); border-color: var(--accent-hover); }

  /* ===== Benefits ===== */
  .section-benefits { background: var(--bg); }
  .benefit-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
  }
  .benefit-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .benefit-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--primary);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
  }
  .benefit-card h3 { font-size: 20px; margin-bottom: 10px; }
  .benefit-card p { font-size: 15px; color: var(--text-2); line-height: 1.75; }

  /* ===== Scenarios ===== */
  .section-scenarios { background: #fff; }
  .scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .scenario-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: border-color 0.2s, transform 0.2s;
  }
  .scenario-item:hover { border-color: var(--accent); transform: translateY(-3px); }
  .scenario-num { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 12px; }
  .scenario-item h3 { font-size: 18px; margin-bottom: 8px; }
  .scenario-item p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

  /* ===== Flow ===== */
  .section-flow { background: var(--bg); }
  .flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
  .step-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .step-num {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--accent);
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
  }
  .step-item h3 { font-size: 18px; margin-bottom: 8px; }
  .step-item p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

  /* ===== FAQ ===== */
  .section-faq { background: #fff; }
  .faq-list { max-width: 820px; margin: 0 auto; }
  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.25s, box-shadow 0.25s;
  }
  .faq-item[open] { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(224, 164, 88, 0.12); }
  .faq-item summary {
    cursor: pointer;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 44px;
    transition: color 0.2s;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--accent-hover); }
  .faq-item summary::after {
    content: '+';
    font-size: 24px;
    font-weight: 400;
    color: var(--text-3);
    flex-shrink: 0;
    line-height: 1;
    transition: transform 0.2s;
  }
  .faq-item[open] summary::after { transform: rotate(45deg); color: var(--accent); }
  .faq-item .faq-answer { padding: 0 24px 20px; font-size: 15px; color: var(--text-2); line-height: 1.8; }

  /* ===== CTA Banner ===== */
  .cta-section { padding: 72px 20px; }
  .cta-banner {
    background-color: var(--primary);
    background-image:
      radial-gradient(1px 1px at 15% 35%, rgba(255,255,255,0.65), transparent),
      radial-gradient(1.5px 1.5px at 70% 25%, rgba(255,255,255,0.5), transparent),
      radial-gradient(1px 1px at 88% 72%, rgba(255,255,255,0.45), transparent);
    border-radius: var(--radius-lg);
    color: #fff;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 56px 52px;
  }
  .cta-content { max-width: 580px; }
  .cta-content h2 { font-size: 30px; margin-bottom: 14px; }
  .cta-content p { font-size: 16px; color: rgba(255, 255, 255, 0.7); line-height: 1.75; margin-bottom: 28px; }
  .cta-decor {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    flex-shrink: 0;
  }
  .cta-decor::before {
    content: '';
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.14);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .cta-decor::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(224, 164, 88, 0.25);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  /* ===== Footer ===== */
  .site-footer { background: var(--primary); color: rgba(255, 255, 255, 0.7); padding: 64px 0 0; }
  .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
  .footer-brand .brand { color: #fff; margin-bottom: 16px; }
  .footer-brand .brand-icon { background: rgba(255, 255, 255, 0.1); }
  .footer-tagline { font-size: 14px; line-height: 1.7; margin-bottom: 20px; max-width: 300px; }
  .footer-icp { font-size: 13px; color: rgba(255, 255, 255, 0.4); }
  .footer-col h4 { font-size: 16px; color: #fff; margin-bottom: 16px; }
  .footer-col ul li { margin-bottom: 10px; }
  .footer-col ul a { font-size: 14px; color: rgba(255, 255, 255, 0.7); transition: color 0.2s; }
  .footer-col ul a:hover { color: var(--accent); }
  .footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; margin-bottom: 12px; }
  .footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--accent); }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    flex-wrap: wrap;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .search-box { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 768px) {
    .section { padding: 64px 0; }
    .main-nav { display: none; }
    .menu-toggle { display: flex; }
    .mobile-drawer { display: block; }
    .hero-category { padding: 64px 0 56px; }
    .hero-title { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .feature-card { grid-template-columns: 1fr; gap: 20px; padding: 20px; }
    .feature-card.reverse .feature-media { order: 0; }
    .section-head h2 { font-size: 26px; }
    .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .flow-steps { grid-template-columns: repeat(2, 1fr); }
    .cta-banner { flex-direction: column; text-align: center; padding: 40px 28px; }
    .cta-decor { display: none; }
    .cta-content { max-width: 100%; }
    .footer-grid { grid-template-columns: 1fr 1fr; padding-bottom: 32px; }
    .footer-brand { grid-column: 1 / -1; }
  }
  @media (max-width: 520px) {
    .container-site { padding-left: 16px; padding-right: 16px; }
    .nav-actions .nav-login { display: none; }
    .header-inner { gap: 12px; }
    .btn-nav { padding: 0 14px; }
    .hero-title { font-size: 28px; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
    .scenario-grid { grid-template-columns: 1fr; }
    .flow-steps { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  }

/* roulang page: article */
:root {
  --primary: #171C2F;
  --primary-dark: #12162A;
  --card-dark: #1D2338;
  --accent: #E0A458;
  --accent-hover: #E9B56F;
  --accent-dark: #D1903F;
  --bg: #F7F4EE;
  --card-bg: #FFFFFF;
  --text: #272B3C;
  --text-secondary: #687086;
  --text-muted: #9CA3AF;
  --border: rgba(23, 28, 47, 0.08);
  --border-dark: rgba(255, 255, 255, 0.12);
  --radius: 16px;
  --radius-btn: 12px;
  --radius-tag: 6px;
  --shadow: 0 1px 2px rgba(23, 28, 47, 0.04), 0 8px 24px rgba(23, 28, 47, 0.06);
  --shadow-hover: 0 0 0 1px rgba(224, 164, 88, 0.25), 0 12px 40px rgba(23, 28, 47, 0.12);
  --container: 1200px;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
  cursor: pointer;
}
.container-site {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  min-height: 72px;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  white-space: nowrap;
}
.brand-icon {
  display: inline-flex;
  color: var(--accent);
}
.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover {
  color: var(--text);
  background: rgba(23, 28, 47, 0.05);
}
.nav-link.active {
  color: var(--accent-dark);
  background: rgba(224, 164, 88, 0.14);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 240px;
  height: 44px;
  padding: 0 16px;
  border-radius: 22px;
  background: #EDE9E2;
  border: 2px solid transparent;
  transition: background 0.25s, border-color 0.25s;
}
.search-box:focus-within {
  background: #FFFFFF;
  border-color: var(--accent);
}
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--text);
}
.search-box input::placeholder {
  color: var(--text-muted);
}
.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}
.btn-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background 0.2s;
}
.btn-login:hover {
  background: rgba(23, 28, 47, 0.06);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  background: var(--accent);
  color: #14182A;
  font-size: 16px;
  font-weight: 700;
  transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 18px rgba(224, 164, 88, 0.35);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-sm {
  height: 44px;
  padding: 0 20px;
  font-size: 15px;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}
.btn-secondary:hover {
  background: rgba(23, 28, 47, 0.04);
  border-color: rgba(23, 28, 47, 0.16);
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  padding: 8px;
  border-radius: 8px;
}
.mobile-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: all 0.3s;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: var(--bg);
  z-index: 80;
  box-shadow: -8px 0 32px rgba(23, 28, 47, 0.15);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.mobile-drawer.open {
  transform: translateX(0);
}
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.drawer-brand {
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
}
.drawer-close {
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  font-size: 28px;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
}
.drawer-nav {
  flex: 1;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.drawer-link {
  display: block;
  height: 48px;
  line-height: 48px;
  font-size: 18px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.drawer-link:hover,
.drawer-link.active {
  color: var(--accent-dark);
}
.drawer-footer {
  padding: 16px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(23, 28, 47, 0.5);
  z-index: 70;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}
.article-main {
  padding: 48px 0 80px;
  background: var(--bg);
}
.breadcrumb {
  max-width: 860px;
  margin: 0 auto 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--accent-dark);
}
.breadcrumb .current {
  color: var(--text);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.article-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: 24px;
  padding: 48px 56px 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.article-header {
  text-align: center;
  margin-bottom: 36px;
}
.article-category-tag {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(224, 164, 88, 0.12);
  margin-bottom: 16px;
}
.article-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-content {
  font-size: 17px;
  line-height: 2;
  color: var(--text);
}
.article-content p {
  margin: 0 0 28px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 48px 0 20px;
  letter-spacing: -0.01em;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 36px 0 16px;
  line-height: 1.5;
}
.article-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 12px;
}
.article-content img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  margin: 32px 0;
  object-fit: cover;
}
.article-content ul,
.article-content ol {
  margin: 24px 0;
  padding-left: 24px;
}
.article-content li {
  margin-bottom: 10px;
}
.article-content blockquote {
  border-left: 3px solid var(--accent);
  background: rgba(224, 164, 88, 0.06);
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin: 32px 0;
  color: var(--text-secondary);
}
.article-content blockquote p:last-child {
  margin-bottom: 0;
}
.article-content a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-content a:hover {
  color: var(--accent);
}
.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}
.article-content code {
  background: rgba(23, 28, 47, 0.05);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 15px;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-tag);
  background: rgba(23, 28, 47, 0.05);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.tag:hover {
  background: rgba(224, 164, 88, 0.12);
  color: var(--accent-dark);
}
.related-posts {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.related-posts h2 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  display: block;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
  transition: transform 0.25s, box-shadow 0.25s;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.related-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary);
}
.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-body {
  padding: 16px;
}
.related-body h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
}
.related-card:hover .related-body h3 {
  color: var(--accent-dark);
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
.related-cat {
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(224, 164, 88, 0.1);
  color: var(--accent-dark);
  font-weight: 600;
}
.article-back {
  margin-top: 40px;
  text-align: center;
}
.article-empty {
  max-width: 640px;
  margin: 48px auto;
  background: #fff;
  border-radius: 24px;
  padding: 64px 40px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.article-empty h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 24px;
  color: var(--text);
}
.article-cta {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(1px 1px at 20% 25%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 80% 30%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1.5px 1.5px at 60% 70%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1px 1px at 30% 80%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 10% 50%, rgba(255, 255, 255, 0.3), transparent),
    linear-gradient(rgba(23, 28, 47, 0.9), rgba(23, 28, 47, 0.9)),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
}
.article-cta .container-site {
  position: relative;
  z-index: 1;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark);
  border-radius: 32px;
  padding: 48px 56px;
}
.cta-content h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}
.cta-content p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  margin: 0;
}
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-dark);
}
.footer-brand .brand {
  color: #fff;
  margin-bottom: 16px;
  display: inline-flex;
}
.footer-brand .brand-icon {
  color: var(--accent);
}
.footer-tagline {
  font-size: 14px;
  line-height: 1.8;
  margin: 16px 0;
  max-width: 280px;
}
.footer-icp {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  margin: 0;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 20px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: 12px;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}
.footer-contact svg {
  width: 18px;
  height: 18px;
  color: rgba(255, 255, 255, 0.4);
  flex-shrink: 0;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 1024px) {
  .search-box {
    width: 180px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .main-nav,
  .search-box {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .header-actions {
    gap: 8px;
  }
  .header-actions .btn-login {
    padding: 0 14px;
    font-size: 14px;
  }
  .header-actions .btn-primary.btn-sm {
    padding: 0 14px;
    font-size: 14px;
  }
  .container-site {
    padding: 0 16px;
  }
  .article-main {
    padding: 24px 0 48px;
  }
  .article-wrap {
    padding: 28px 20px;
    border-radius: 16px;
  }
  .article-title {
    font-size: 26px;
  }
  .article-content {
    font-size: 16px;
  }
  .article-content h2 {
    font-size: 22px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 24px;
    border-radius: 20px;
  }
  .cta-content h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .breadcrumb {
    margin-bottom: 16px;
    font-size: 13px;
  }
  .breadcrumb .current {
    max-width: 180px;
  }
}
@media (max-width: 480px) {
  .header-actions .btn-login {
    display: none;
  }
  .header-inner {
    gap: 12px;
  }
  .brand-text {
    font-size: 18px;
  }
}

/* roulang page: category2 */
:root {
  --color-primary: #171C2F;
  --color-primary-light: #1D2338;
  --color-accent: #E0A458;
  --color-accent-hover: #E9B56F;
  --color-accent-dark: #D1903F;
  --color-bg: #F7F4EE;
  --color-card: #FFFFFF;
  --color-text: #272B3C;
  --color-text-secondary: #687086;
  --color-text-muted: #9CA3AF;
  --color-success: #46C3B2;
  --color-error: #D96C61;
  --color-border: rgba(23, 28, 47, 0.08);
  --color-border-dark: rgba(255, 255, 255, 0.12);
  --radius-card: 16px;
  --radius-banner: 32px;
  --radius-btn: 12px;
  --radius-tag: 6px;
  --shadow-card: 0 1px 2px rgba(23, 28, 47, 0.04), 0 8px 24px rgba(23, 28, 47, 0.06);
  --shadow-card-hover: 0 0 0 1px rgba(224, 164, 88, 0.25), 0 12px 40px rgba(23, 28, 47, 0.12);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
.container-site {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.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: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  background: var(--color-primary);
  border-radius: 10px;
  flex-shrink: 0;
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--color-accent-dark);
  background: rgba(224, 164, 88, 0.08);
}
.nav-link.active {
  color: var(--color-accent-dark);
  background: rgba(224, 164, 88, 0.12);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  width: 240px;
}
.search-box input {
  width: 100%;
  height: 44px;
  padding: 0 16px;
  border-radius: 22px;
  border: 1px solid transparent;
  background: rgba(23, 28, 47, 0.06);
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: all 0.2s ease;
}
.search-box input::placeholder {
  color: var(--color-text-muted);
}
.search-box input:focus {
  background: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(224, 164, 88, 0.25);
}
.btn-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  border-radius: 8px;
  transition: all 0.2s ease;
}
.btn-login:hover {
  background: rgba(23, 28, 47, 0.05);
  color: var(--color-accent-dark);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 700;
  color: #14182A;
  background: var(--color-accent);
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(224, 164, 88, 0.3);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(224, 164, 88, 0.4);
}
.btn-primary:active {
  transform: scale(0.98);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-text);
  transition: background 0.2s ease;
}
.menu-toggle:hover {
  background: rgba(23, 28, 47, 0.05);
}
.mobile-drawer {
  display: block;
  position: fixed;
  top: 72px;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  box-shadow: -8px 0 32px rgba(23, 28, 47, 0.12);
  z-index: 200;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  visibility: hidden;
}
.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}
.mobile-drawer .nav-link {
  display: flex;
  width: 100%;
  height: 48px;
  font-size: 18px;
  justify-content: flex-start;
  padding: 0 12px;
  margin-bottom: 4px;
}

/* Hero Banner */
.hero-banner {
  position: relative;
  background-color: var(--color-primary);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 88px 0;
  color: #fff;
  overflow: hidden;
}
.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(23, 28, 47, 0.94) 55%, rgba(23, 28, 47, 0.62));
  z-index: 1;
}
.hero-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle at 18% 42%, rgba(255, 255, 255, 0.5) 0.6px, transparent 1.8px),
    radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.4) 0.6px, transparent 1.8px),
    radial-gradient(circle at 86% 60%, rgba(255, 255, 255, 0.3) 0.6px, transparent 1.8px),
    radial-gradient(circle at 36% 78%, rgba(255, 255, 255, 0.25) 0.6px, transparent 1.8px),
    radial-gradient(circle at 58% 45%, rgba(255, 255, 255, 0.2) 0.6px, transparent 1.8px);
}
.hero-banner .container-site {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(224, 164, 88, 0.15);
  border: 1px solid rgba(224, 164, 88, 0.35);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 20px;
}
.hero-banner h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin-bottom: 18px;
  color: #fff;
}
.hero-banner .hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
}

/* Section */
.section {
  padding: 88px 0;
}
.section-light {
  background: var(--color-bg);
}
.section-white {
  background: #fff;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}
.section-header .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-header p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* Download Cards */
.download-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.download-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.download-card .card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-primary);
}
.download-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.download-card:hover .card-media img {
  transform: scale(1.04);
}
.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-accent-dark);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(23, 28, 47, 0.12);
}
.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.download-card:hover .card-body h3 {
  color: var(--color-accent-dark);
}
.card-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-top: 16px;
  transition: gap 0.2s ease;
}
.card-link:hover {
  gap: 10px;
}
.card-link svg {
  width: 16px;
  height: 16px;
}

/* Steps */
.step-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 32px 24px 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  position: relative;
  height: 100%;
  transition: all 0.25s ease;
}
.step-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}
.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--color-accent);
  color: #14182A;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 18px;
}
.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}
.step-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Requirements */
.req-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  height: 100%;
}
.req-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.platform-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--color-primary);
  color: var(--color-accent);
  flex-shrink: 0;
}
.req-card-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}
.req-list {
  list-style: none;
}
.req-list li {
  display: flex;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  line-height: 1.6;
}
.req-list li:last-child {
  border-bottom: none;
}
.req-name {
  flex: 0 0 120px;
  font-weight: 600;
  color: var(--color-text);
}
.req-val {
  color: var(--color-text-secondary);
}

/* FAQ */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--color-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(224, 164, 88, 0.15), var(--shadow-card);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  user-select: none;
  min-height: 44px;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--color-accent-dark);
}
.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform 0.2s ease, color 0.2s ease;
}
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}
.faq-answer {
  padding: 0 24px 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* CTA */
.cta-section {
  position: relative;
  background-color: var(--color-primary);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 88px 0;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(23, 28, 47, 0.96) 65%, rgba(23, 28, 47, 0.78));
  z-index: 1;
}
.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle at 28% 62%, rgba(255, 255, 255, 0.45) 0.6px, transparent 1.8px),
    radial-gradient(circle at 76% 32%, rgba(255, 255, 255, 0.35) 0.6px, transparent 1.8px),
    radial-gradient(circle at 90% 70%, rgba(255, 255, 255, 0.3) 0.6px, transparent 1.8px),
    radial-gradient(circle at 48% 20%, rgba(255, 255, 255, 0.25) 0.6px, transparent 1.8px);
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-content h2 {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 480px;
  line-height: 1.7;
}
.btn-large {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
  font-weight: 700;
  color: #14182A;
  background: var(--color-accent);
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(224, 164, 88, 0.35);
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-large:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 24px rgba(224, 164, 88, 0.45);
  transform: translateY(-2px);
}
.btn-large:active {
  transform: scale(0.98);
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 68px 0 0;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 82% 30%, rgba(255, 255, 255, 0.35) 0.5px, transparent 1.6px),
    radial-gradient(circle at 64% 76%, rgba(255, 255, 255, 0.25) 0.5px, transparent 1.6px),
    radial-gradient(circle at 22% 58%, rgba(255, 255, 255, 0.22) 0.5px, transparent 1.6px);
}
.site-footer .container-site {
  position: relative;
  z-index: 2;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 52px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand .brand-text {
  color: #fff;
}
.footer-tagline {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 14px;
  max-width: 270px;
}
.footer-icp {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: var(--color-accent);
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}
.footer-contact svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  border-top: 1px solid var(--color-border-dark);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  gap: 12px;
}

/* Responsive */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .search-box {
    display: none;
  }
  .section {
    padding: 68px 0;
  }
}

@media (max-width: 768px) {
  .hero-banner {
    padding: 60px 0;
  }
  .hero-banner h1 {
    font-size: 32px;
  }
  .hero-banner .hero-sub {
    font-size: 15px;
  }
  .section {
    padding: 56px 0;
  }
  .section-header {
    margin-bottom: 36px;
  }
  .section-header h2 {
    font-size: 24px;
  }
  .cta-inner {
    flex-direction: column;
    text-align: left;
    align-items: flex-start;
    gap: 24px;
  }
  .cta-content h2 {
    font-size: 24px;
  }
  .cta-content p {
    font-size: 15px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .container-site {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-actions .btn-login {
    display: none;
  }
  .header-actions .btn-primary {
    display: none;
  }
  .brand-text {
    font-size: 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .req-card {
    padding: 24px;
  }
  .faq-item summary {
    padding: 16px 18px;
    font-size: 14px;
  }
  .faq-answer {
    padding: 0 18px 18px;
    font-size: 13px;
  }
}

/* roulang page: category3 */
:root {
  --primary: #171C2F;
  --primary-light: #1D2338;
  --accent: #E0A458;
  --accent-hover: #D1903F;
  --accent-soft: #E9B56F;
  --bg: #F7F4EE;
  --card-bg: #FFFFFF;
  --text: #272B3C;
  --text-secondary: #687086;
  --text-muted: #9CA3AF;
  --border: rgba(23,28,47,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --success: #46C3B2;
  --error: #D96C61;
  --radius: 16px;
  --radius-lg: 32px;
  --radius-btn: 12px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(23,28,47,0.04), 0 8px 24px rgba(23,28,47,0.06);
  --shadow-hover: 0 0 0 1px rgba(224,164,88,0.25), 0 12px 40px rgba(23,28,47,0.12);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 14px; }
ul, ol { list-style: none; }
.container-site { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }
.sect-header { max-width: 640px; margin-bottom: 48px; }
.sect-header h2 { font-size: 28px; font-weight: 800; letter-spacing: -0.01em; color: var(--text); line-height: 1.3; }
.sect-header p { margin-top: 12px; font-size: 16px; color: var(--text-secondary); line-height: 1.7; }
.sect-header.center { margin-left: auto; margin-right: auto; text-align: center; }

/* 按钮体系 */
.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: 700;
  transition: all 0.25s ease;
  white-space: nowrap;
  text-align: center;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: #14182A; }
.btn-primary:hover { background: var(--accent-soft); box-shadow: 0 8px 24px rgba(224,164,88,0.35); transform: translateY(-1px); }
.btn-outline-light { border: 1px solid rgba(255,255,255,0.65); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.btn-outline-dark { border: 1px solid var(--border); color: var(--text); }
.btn-outline-dark:hover { border-color: var(--accent); color: var(--accent-hover); background: rgba(224,164,88,0.06); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; border-radius: 10px; }

/* 顶部导航 */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 72px;
  background: rgba(247,244,238,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px; margin: 0 auto;
  height: 72px; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-text { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 16px; border-radius: 10px;
  font-size: 15px; font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover { color: var(--text); background: rgba(23,28,47,0.05); }
.nav-link.active { color: var(--accent-hover); background: rgba(224,164,88,0.12); font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box { position: relative; display: none; }
.search-box input {
  width: 240px; height: 40px;
  border-radius: 20px;
  border: 1px solid transparent;
  background: rgba(23,28,47,0.06);
  padding: 0 16px 0 40px;
  font-size: 14px; color: var(--text);
  outline: none;
  transition: all 0.25s ease;
}
.search-box input:focus { background: #fff; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(224,164,88,0.25); }
.search-box .search-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--text-muted); pointer-events: none;
}
.menu-toggle { display: none; width: 44px; height: 44px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border-radius: 10px; }
.menu-toggle:hover { background: rgba(23,28,47,0.05); }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-drawer {
  display: none;
  position: fixed; top: 72px; right: 0; bottom: 0; z-index: 99;
  width: min(320px, 82vw);
  background: var(--bg);
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 32px rgba(23,28,47,0.1);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 24px;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-nav a {
  display: block; padding: 14px 12px;
  font-size: 18px; font-weight: 500; color: var(--text);
  border-radius: 10px;
  transition: background 0.2s ease;
}
.mobile-nav a:hover { background: rgba(23,28,47,0.05); }
.mobile-nav a.active { color: var(--accent-hover); background: rgba(224,164,88,0.12); font-weight: 700; }
.drawer-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 98;
  background: rgba(23,28,47,0.45);
  backdrop-filter: blur(2px);
}
.drawer-overlay.show { display: block; }

@media (min-width: 1024px) {
  .search-box { display: block; }
}
@media (max-width: 1023px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
}
@media (max-width: 640px) {
  .header-inner { padding: 0 16px; gap: 12px; }
  .header-actions .btn-outline-dark, .header-actions .btn-primary { display: none; }
  .header-actions { gap: 8px; }
  .menu-toggle { display: flex; }
}

/* 分类页 Hero */
.page-hero {
  position: relative;
  background: var(--primary);
  color: #fff;
  padding: 72px 0 0;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.24;
}
.page-hero .star-dots::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.25) 1px, transparent 1.2px),
    radial-gradient(circle, rgba(255,255,255,0.12) 1px, transparent 1.4px);
  background-size: 140px 140px, 200px 200px;
  background-position: 40px 60px, 120px 170px;
  pointer-events: none;
  z-index: 1;
}
.page-hero-content { position: relative; z-index: 2; max-width: 800px; padding-bottom: 64px; }
.page-hero .breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.page-hero .breadcrumb a:hover { color: var(--accent); }
.page-hero .breadcrumb span { color: rgba(255,255,255,0.35); }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 44px); font-weight: 800; line-height: 1.24; letter-spacing: -0.02em; margin-bottom: 16px; }
.page-hero .hero-sub { font-size: 17px; line-height: 1.75; color: rgba(255,255,255,0.72); max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border-dark);
  padding: 28px 0 32px;
}
.hero-stat { text-align: left; }
.hero-stat strong { display: block; font-size: 28px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; line-height: 1.3; }
.hero-stat span { font-size: 13px; color: rgba(255,255,255,0.62); margin-top: 4px; display: block; }
@media (max-width: 768px) {
  .page-hero { padding-top: 52px; }
  .page-hero-content { padding-bottom: 40px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px 16px; padding-top: 24px; padding-bottom: 24px; }
  .hero-stat strong { font-size: 24px; }
}

/* 单列列表行 */
.guide-list { background: var(--bg); }
.guide-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: padding 0.25s ease;
}
.guide-item:first-child { padding-top: 0; }
.guide-item:last-child { border-bottom: none; padding-bottom: 0; }
.guide-thumb {
  width: 240px; height: 135px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--primary);
}
.guide-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.guide-item:hover .guide-thumb img { transform: scale(1.05); }
.guide-content h3 { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.5; margin-bottom: 8px; }
.guide-content h3 a { transition: color 0.2s ease; }
.guide-content h3 a:hover { color: var(--accent-hover); }
.guide-content p {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.guide-meta { display: flex; align-items: center; gap: 16px; margin-top: 12px; font-size: 13px; color: var(--text-muted); }
.guide-meta .tag-pill {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(224,164,88,0.12); color: var(--accent-hover);
  font-size: 12px; font-weight: 600;
}
.guide-meta .read-more { color: var(--accent-hover); font-weight: 600; font-size: 13px; transition: all 0.2s ease; }
.guide-meta .read-more:hover { color: var(--text); }
@media (max-width: 768px) {
  .guide-item { grid-template-columns: 1fr; gap: 16px; padding: 24px 0; }
  .guide-thumb { width: 100%; height: auto; aspect-ratio: 16/9; }
  .guide-meta { flex-wrap: wrap; gap: 10px 16px; }
}

/* 步骤流程 */
.security-steps { background: #fff; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.3s ease;
}
.step-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(224,164,88,0.35); }
.step-num { font-size: 40px; font-weight: 800; color: rgba(224,164,88,0.3); font-variant-numeric: tabular-nums; line-height: 1; display: block; margin-bottom: 14px; }
.step-card h3 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
@media (max-width: 1023px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .steps-grid { grid-template-columns: 1fr; }
}

/* FAQ 手风琴 */
.faq-section { background: var(--bg); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
}
.faq-item:hover { border-color: rgba(224,164,88,0.35); box-shadow: var(--shadow); }
.faq-item[open] { border-color: rgba(224,164,88,0.5); box-shadow: var(--shadow); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px;
  font-size: 16px; font-weight: 600; color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent-hover); }
.faq-item summary::after {
  content: '+';
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(224,164,88,0.12); color: var(--accent-hover);
  font-size: 20px; font-weight: 600; flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); background: var(--accent); color: #14182A; }
.faq-answer { padding: 0 24px 22px; font-size: 15px; color: var(--text-secondary); line-height: 1.8; }
.faq-item[open] .faq-answer { animation: fadeSlide 0.3s ease; }
@keyframes fadeSlide { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 640px) {
  .faq-item summary { padding: 18px 18px; font-size: 15px; }
  .faq-answer { padding: 0 18px 18px; font-size: 14px; }
}

/* CTA 横幅 */
.cta-banner { background: var(--primary); color: #fff; position: relative; overflow: hidden; }
.cta-banner .star-dots::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.22) 1px, transparent 1.2px),
    radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1.4px);
  background-size: 150px 150px, 210px 210px;
  background-position: 60px 40px, 150px 180px;
  pointer-events: none;
}
.cta-inner {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 48px;
  padding: 80px 0;
}
.cta-left { max-width: 560px; }
.cta-left h2 { font-size: 30px; font-weight: 800; letter-spacing: -0.01em; line-height: 1.3; margin-bottom: 12px; }
.cta-left p { font-size: 16px; color: rgba(255,255,255,0.7); line-height: 1.75; margin-bottom: 28px; }
.cta-deco {
  width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(224,164,88,0.25) 0%, rgba(224,164,88,0) 68%);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cta-deco svg { width: 80px; height: 80px; color: rgba(224,164,88,0.8); }
@media (max-width: 768px) {
  .cta-inner { flex-direction: column; gap: 32px; padding: 64px 0; text-align: center; }
  .cta-left { max-width: 100%; }
  .cta-deco { width: 160px; height: 160px; }
  .cta-deco svg { width: 56px; height: 56px; }
}

/* 页脚 */
.site-footer { background: var(--primary); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-tagline { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,0.55); max-width: 300px; margin-bottom: 16px; }
.footer-icp { font-size: 12px; color: rgba(255,255,255,0.4); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.2s ease; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-contact svg { width: 16px; height: 16px; color: rgba(224,164,88,0.7); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-size: 13px; color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
}
@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
}
@media (max-width: 640px) {
  .site-footer { padding-top: 48px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* 焦点可见性 */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}