/* roulang page: index */
:root {
  --navy-deep: #0A1A2F;
  --navy-mid: #102A43;
  --navy-light: #1B3A5C;
  --copper: #B87333;
  --copper-light: #C07C40;
  --copper-glow: rgba(184, 115, 51, 0.35);
  --cream: #F5EFE6;
  --red-muted: #B23A48;
  --text-light: #F0EAE2;
  --text-soft: rgba(240, 234, 226, 0.72);
  --text-dim: rgba(240, 234, 226, 0.5);
  --border-glass: rgba(255, 255, 255, 0.15);
  --bg-glass: rgba(255, 255, 255, 0.07);
  --bg-glass-strong: rgba(255, 255, 255, 0.12);
  --radius-card: 18px;
  --radius-btn: 10px;
  --radius-badge: 999px;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.22);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-sans: "PingFang SC", "HarmonyOS 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: 1.8;
  color: var(--text-light);
  background: var(--navy-deep);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--copper-light);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--copper);
}
ul,
ol {
  list-style: none;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
.grid-container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(184, 115, 51, 0.55);
  outline-offset: 4px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--copper) 0%, var(--copper-light) 100%);
  color: #0A1A2F;
  box-shadow: 0 4px 18px rgba(184, 115, 51, 0.3);
}
.btn-primary:hover {
  color: #0A1A2F;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(184, 115, 51, 0.45);
}
.btn-outline {
  background: transparent;
  border-color: var(--border-glass);
  color: var(--text-light);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}
.btn-copper {
  background: linear-gradient(135deg, var(--copper) 0%, #d4915c 100%);
  color: #0A1A2F;
  box-shadow: 0 4px 20px rgba(184, 115, 51, 0.35);
}
.btn-copper:hover {
  color: #0A1A2F;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 32px rgba(184, 115, 51, 0.5);
}
.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
  border-radius: 12px;
}
.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
  border-radius: 8px;
}
.section {
  padding: 100px 0;
  position: relative;
}
.section-head {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  padding: 5px 18px;
  background: rgba(184, 115, 51, 0.15);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--copper-light);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-badge);
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 12px;
}
.section-desc {
  color: var(--text-soft);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}
.section-title::before {
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  background: linear-gradient(90deg, var(--copper), transparent);
  border-radius: 4px;
  margin: 0 auto 18px;
}
/* ========== 导航 ========== */
.site-header {
  position: relative;
  z-index: 1000;
  background: rgba(10, 26, 47, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.site-header.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 26, 47, 0.88);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}
.header-top {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--copper), var(--copper-light));
  border-radius: 10px;
  color: #0A1A2F;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(184, 115, 51, 0.3);
}
.brand-name {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #fff, #e8dcc8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition);
}
.header-search input {
  background: transparent;
  border: none;
  padding: 9px 14px;
  color: #fff;
  font-size: 14px;
  width: 220px;
}
.header-search input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}
.header-search input:focus {
  border: none;
  box-shadow: none;
}
.search-btn {
  background: var(--copper);
  color: #0A1A2F;
  font-weight: 700;
  font-size: 13px;
  padding: 9px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: var(--transition);
}
.search-btn:hover {
  background: var(--copper-light);
}
.search-toggle {
  display: none;
  color: #fff;
  font-size: 18px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: var(--transition);
}
.search-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}
.header-nav {
  padding: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
}
.nav-link {
  display: inline-block;
  padding: 14px 18px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}
.nav-link.active {
  color: var(--copper-light);
  border-bottom-color: var(--copper);
  font-weight: 700;
}
.nav-hot {
  position: relative;
  margin-left: 8px;
  padding: 14px 12px;
  cursor: pointer;
}
.hot-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  padding: 4px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-badge);
  transition: var(--transition);
}
.hot-trigger:hover {
  color: var(--copper-light);
  border-color: rgba(184, 115, 51, 0.4);
}
.hot-dropdown {
  position: absolute;
  top: calc(100% - 4px);
  right: 0;
  background: rgba(16, 42, 67, 0.96);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 10px 0;
  min-width: 160px;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 100;
}
.nav-hot:hover .hot-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.hot-dropdown a {
  display: block;
  padding: 10px 20px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}
.hot-dropdown a:hover {
  background: rgba(184, 115, 51, 0.12);
  color: var(--copper-light);
}
/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 140px 0 140px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.06); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 26, 47, 0.96) 20%, rgba(10, 26, 47, 0.78) 60%, rgba(16, 42, 67, 0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero-text-col {
  flex: 0 0 58%;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(184, 115, 51, 0.12);
  border: 1px solid rgba(184, 115, 51, 0.35);
  border-radius: var(--radius-badge);
  color: var(--copper-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 50px;
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.hero-title .highlight {
  background: linear-gradient(120deg, var(--copper-light), #e8b98a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 440px;
  margin-bottom: 36px;
  font-weight: 400;
}
.hero-cta {
  gap: 10px;
}
.hero-cta i {
  font-size: 14px;
}
.hero-stats-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.glass-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 10px 30px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}
.glass-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(255, 255, 255, 0.28);
}
.stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
}
.stat-number {
  font-size: 42px;
  font-weight: 900;
  color: var(--copper-light);
  line-height: 1;
  min-width: 100px;
  font-family: "Georgia", serif;
}
.stat-label {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
}
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.4);
  font-size: 22px;
  animation: bounceDown 2s infinite;
  cursor: pointer;
}
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}
/* ========== 玩法介绍 ========== */
.howto {
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-mid) 100%);
  position: relative;
}
.howto::before {
  content: "";
  position: absolute;
  top: 40px;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(184, 115, 51, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.steps-row {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: wrap;
}
.step-item {
  flex: 1;
  min-width: 220px;
  max-width: 270px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  position: relative;
  text-align: center;
  transition: var(--transition);
}
.step-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(184, 115, 51, 0.3);
  transform: translateY(-6px);
}
.step-number {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 48px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.06);
  line-height: 1;
  font-family: "Georgia", serif;
}
.step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(184, 115, 51, 0.12);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--copper-light);
  font-size: 22px;
  box-shadow: 0 0 20px rgba(184, 115, 51, 0.1);
}
.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.6;
}
/* ========== 奖励预览 ========== */
.rewards {
  background: var(--navy-deep);
}
.rewards-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: stretch;
}
.reward-featured {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.reward-featured:hover {
  border-color: rgba(184, 115, 51, 0.4);
  box-shadow: var(--shadow-hover);
}
.reward-img-wrap {
  overflow: hidden;
  height: 260px;
}
.reward-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.reward-featured:hover .reward-img {
  transform: scale(1.06);
}
.reward-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  background: rgba(184, 115, 51, 0.18);
  border: 1px solid rgba(184, 115, 51, 0.35);
  color: var(--copper-light);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-badge);
}
.reward-body h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}
.reward-body p {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.6;
}
.reward-side {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.reward-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px;
  transition: var(--transition);
  flex: 1;
}
.reward-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(184, 115, 51, 0.4);
  transform: translateX(4px);
}
.reward-card .reward-thumb {
  width: 110px;
  height: 90px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}
.reward-card .reward-body {
  padding: 0;
  gap: 6px;
}
.reward-card h3 {
  font-size: 16px;
  line-height: 1.3;
}
.reward-card p {
  font-size: 13px;
  line-height: 1.5;
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 600;
  color: var(--copper-light);
}
.link-arrow i {
  transition: transform 0.3s;
}
.link-arrow:hover i {
  transform: translateX(4px);
}
/* ========== 任务进度感 ========== */
.journey {
  background: var(--cream);
  color: #1a1a1a;
}
.journey .section-title {
  color: var(--navy-deep);
}
.journey .section-title::before {
  background: linear-gradient(90deg, var(--copper), transparent);
}
.journey .section-desc {
  color: rgba(10, 26, 47, 0.6);
}
.journey .section-tag {
  background: rgba(184, 115, 51, 0.08);
  border-color: rgba(184, 115, 51, 0.25);
}
.journey-layout {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}
.journey-layout::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--copper) 0%, rgba(184, 115, 51, 0.2) 100%);
}
.journey-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: 44px;
}
.journey-item:last-child {
  margin-bottom: 0;
}
.journey-dot {
  position: absolute;
  left: 17px;
  top: 20px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--copper);
  border: 3px solid #fff;
  box-shadow: 0 0 0 4px rgba(184, 115, 51, 0.25);
  z-index: 1;
}
.journey-item:nth-child(2) .journey-dot {
  box-shadow: 0 0 0 6px rgba(184, 115, 51, 0.15);
}
.journey-item:nth-child(3) .journey-dot {
  box-shadow: 0 0 0 6px rgba(184, 115, 51, 0.12);
}
.journey-content {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 28px 32px;
  box-shadow: 0 4px 16px rgba(10, 26, 47, 0.06);
  border-left: 3px solid var(--copper);
  transition: var(--transition);
}
.journey-content:hover {
  box-shadow: 0 12px 32px rgba(10, 26, 47, 0.12);
  transform: translateX(4px);
}
.journey-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-deep);
  margin-bottom: 6px;
}
.journey-content p {
  font-size: 15px;
  color: rgba(10, 26, 47, 0.65);
  margin-bottom: 16px;
  line-height: 1.6;
}
.badge {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(184, 115, 51, 0.1);
  border: 1px solid rgba(184, 115, 51, 0.25);
  color: var(--copper);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-badge);
  margin-bottom: 12px;
}
.badge-blue {
  background: rgba(16, 42, 67, 0.06);
  border-color: rgba(16, 42, 67, 0.15);
  color: var(--navy-mid);
}
/* ========== CTA横幅 ========== */
.cta-banner {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(120deg, rgba(10, 26, 47, 0.92) 0%, rgba(16, 42, 67, 0.82) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(184, 115, 51, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.cta-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 30px;
}
/* ========== 最新资讯 ========== */
.latest {
  background: var(--navy-deep);
}
.latest-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.news-featured {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}
.news-featured:hover {
  border-color: rgba(184, 115, 51, 0.4);
  box-shadow: var(--shadow-hover);
}
.news-featured-info {
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}
.news-featured-info h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}
.news-featured-info p {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.6;
}
.news-featured-meta {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  flex-direction: column;
  padding: 34px;
  gap: 16px;
  background: rgba(184, 115, 51, 0.05);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}
.news-featured-meta .news-date {
  font-size: 15px;
  color: var(--text-dim);
}
.news-featured-meta .arrow-circle {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(184, 115, 51, 0.15);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--copper-light);
  font-size: 18px;
  transition: var(--transition);
}
.news-featured:hover .arrow-circle {
  background: var(--copper);
  color: #0A1A2F;
  transform: translateX(4px);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: 20px 24px;
  transition: var(--transition);
}
.news-row:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(184, 115, 51, 0.3);
  transform: translateX(4px);
}
.news-row-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.news-row-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.4;
  transition: var(--transition);
}
.news-row:hover h4 {
  color: var(--copper-light);
}
.news-row-body p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.news-row-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.news-date {
  font-size: 13px;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-category {
  display: inline-block;
  padding: 2px 12px;
  background: rgba(184, 115, 51, 0.15);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--copper-light);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-badge);
}
.news-piece {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 600;
}
.news-empty {
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-card);
  padding: 60px 40px;
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
}
.empty-icon {
  font-size: 48px;
  color: rgba(255, 255, 255, 0.2);
  margin-bottom: 20px;
}
.news-empty p {
  color: var(--text-soft);
  font-size: 16px;
  margin-bottom: 20px;
}
/* ========== FAQ ========== */
.faq {
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy-deep) 100%);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(184, 115, 51, 0.3);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  text-align: left;
  gap: 20px;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--copper-light);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(184, 115, 51, 0.12);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--copper-light);
  font-size: 18px;
  font-weight: 400;
  transition: transform 0.35s ease;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--copper);
  color: #0A1A2F;
  border-color: var(--copper);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
}
.faq-answer p {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.8;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 18px;
}
/* ========== 页脚 ========== */
.site-footer {
  background: #060F1D;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 49px,
    rgba(255, 255, 255, 0.03) 50px,
    transparent 51px,
    transparent 99px,
    rgba(255, 255, 255, 0.04) 100px
  );
  pointer-events: none;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}
.footer-logo {
  font-size: 24px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(90deg, #fff, #e8dcc8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 3px;
  background: var(--copper);
  border-radius: 2px;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--copper-light);
  padding-left: 6px;
}
.footer-col p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
  margin-bottom: 10px;
}
.footer-bottom {
  margin-top: 50px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  color: rgba(255, 255, 255, 0.35);
  font-size: 14px;
}
/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 38px;
  }
  .hero-content {
    flex-direction: column;
    gap: 40px;
    text-align: center;
  }
  .hero-text-col {
    flex: 1 1 100%;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-stats-col {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  .stat-card {
    flex: 1;
    min-width: 180px;
  }
  .rewards-layout {
    grid-template-columns: 1fr;
  }
  .reward-featured .reward-img-wrap {
    height: 220px;
  }
  .reward-side {
    flex-direction: row;
  }
  .reward-card {
    flex-direction: column;
    text-align: left;
  }
  .reward-card .reward-thumb {
    width: 100%;
    height: 140px;
  }
  .section {
    padding: 70px 0;
  }
}
@media (max-width: 640px) {
  .grid-container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .header-top .grid-x {
    flex-wrap: nowrap;
  }
  .header-search {
    display: none;
    position: absolute;
    top: 64px;
    left: 18px;
    right: 18px;
    z-index: 200;
    background: var(--navy-mid);
    border-color: rgba(255, 255, 255, 0.2);
  }
  .header-search.open {
    display: flex;
  }
  .header-search input {
    width: 100%;
  }
  .search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .search-btn {
    display: flex;
  }
  .nav-links {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .nav-link {
    padding: 12px 14px;
    font-size: 14px;
    white-space: nowrap;
  }
  .nav-hot {
    padding: 8px;
  }
  .hot-trigger {
    font-size: 12px;
    padding: 3px 10px;
  }
  .hero {
    padding: 100px 0 80px;
    min-height: auto;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-stats-col {
    flex-direction: column;
    width: 100%;
  }
  .stat-card {
    min-width: 100%;
  }
  .steps-row {
    flex-direction: column;
    align-items: center;
  }
  .step-item {
    max-width: 100%;
    width: 100%;
  }
  .reward-card {
    padding: 14px;
  }
  .journey-layout::before {
    left: 18px;
  }
  .journey-dot {
    left: 8px;
    width: 18px;
    height: 18px;
  }
  .journey-item {
    padding-left: 55px;
  }
  .journey-content {
    padding: 20px;
  }
  .journey-content h3 {
    font-size: 17px;
  }
  .cta-banner {
    padding: 60px 0;
  }
  .cta-banner h2 {
    font-size: 22px;
  }
  .news-featured {
    grid-template-columns: 1fr;
  }
  .news-featured-meta {
    flex-direction: row;
    justify-content: flex-start;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 16px 24px;
  }
  .news-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .news-row-meta {
    width: 100%;
    justify-content: space-between;
  }
  .section-title {
    font-size: 26px;
  }
  .site-footer .grid-x {
    flex-direction: column;
    gap: 32px;
  }
  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
}
@media (max-width: 380px) {
  .brand-name {
    font-size: 18px;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
  }
}

/* roulang page: category1 */
/* ===== Design Variables ===== */
:root {
  --primary-dark: #0A1A2F;
  --primary: #102A43;
  --primary-light: #1A3A5C;
  --copper: #B87333;
  --copper-light: #C07C40;
  --cream: #F5EFE6;
  --red: #B23A48;
  --text-main: #E8E6E3;
  --text-muted: rgba(255,255,255,0.65);
  --text-dark: #1A2A3A;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.15);
  --radius-card: 18px;
  --radius-btn: 10px;
  --shadow-base: 0 4px 12px rgba(0,0,0,.12);
  --shadow-hover: 0 12px 32px rgba(0,0,0,.22);
  --spacing-section: 90px;
  --spacing-mobile: 55px;
  --transition: all .3s ease;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--primary-dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--copper-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--copper); }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; font-size: inherit; border: none; outline: none; }
ul, ol { list-style: none; }
.grid-container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn:focus-visible { outline: 3px solid rgba(192,124,64,.5); outline-offset: 4px; }
.btn-primary {
  background: linear-gradient(135deg, var(--copper-light), var(--copper));
  color: #0A1A2F;
  box-shadow: 0 4px 18px rgba(184,115,51,.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  color: #0A1A2F;
  box-shadow: 0 8px 28px rgba(184,115,51,.4);
}
.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: var(--text-main);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.08);
  border-color: var(--copper-light);
  color: var(--copper-light);
}
.btn-dark-blue {
  background: var(--primary);
  color: #fff;
}
.btn-dark-blue:hover {
  background: var(--copper);
  color: #0A1A2F;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,26,47,.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: var(--transition);
}
.site-header.sticky {
  background: rgba(10,26,47,.92);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
}
.header-top { padding: 14px 0 6px; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--copper-light), var(--copper));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 18px;
  box-shadow: 0 2px 10px rgba(184,115,51,.3);
}
.brand-name {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
}
.header-right { display: flex; align-items: center; gap: 12px; }
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition);
  width: 280px;
}
.header-search input {
  background: transparent;
  border: none;
  color: #fff;
  padding: 9px 14px;
  width: 100%;
  font-size: 14px;
}
.header-search input::placeholder { color: rgba(255,255,255,.45); }
.search-btn {
  background: var(--copper);
  color: var(--primary-dark);
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  white-space: nowrap;
}
.search-btn:hover { background: var(--copper-light); }
.search-toggle {
  display: none;
  background: rgba(255,255,255,.08);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: var(--transition);
}
.search-toggle:hover { background: var(--copper); color: var(--primary-dark); }
.header-nav { margin-top: 8px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 0 6px;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-link {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,.72);
  border-radius: 8px 8px 0 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.05);
}
.nav-link.active {
  color: var(--copper-light);
  border-bottom-color: var(--copper);
  background: rgba(184,115,51,.08);
}
.nav-hot {
  position: relative;
  margin-left: auto;
  flex-shrink: 0;
}
.hot-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.06);
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.hot-trigger:hover { background: rgba(184,115,51,.15); color: var(--copper-light); }
.hot-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(16,42,67,.96);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  min-width: 160px;
  padding: 8px;
  display: none;
  box-shadow: 0 12px 32px rgba(0,0,0,.35);
  z-index: 100;
}
.nav-hot:hover .hot-dropdown { display: block; }
.hot-dropdown a {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  color: rgba(255,255,255,.75);
  border-radius: 8px;
  transition: var(--transition);
}
.hot-dropdown a:hover { background: rgba(184,115,51,.12); color: var(--copper-light); }

/* ===== Page Banner ===== */
.page-banner {
  background: linear-gradient(rgba(10,26,47,.75), rgba(10,26,47,.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 80px 0 90px;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.breadcrumb {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: var(--copper-light); }
.breadcrumb .sep { color: rgba(255,255,255,.35); }
.breadcrumb .current { color: var(--copper-light); }
.banner-title {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin: 12px 0 16px;
  letter-spacing: 1px;
}
.banner-title span { color: var(--copper-light); }
.banner-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,.7);
  max-width: 560px;
  margin-bottom: 30px;
  line-height: 1.7;
}
.banner-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Section Common ===== */
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
  margin-bottom: 10px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--copper);
  border-radius: 4px;
}
.section-head p {
  font-size: 15px;
  color: rgba(255,255,255,.5);
  max-width: 500px;
  margin: 0 auto;
}

/* ===== Alternating Section ===== */
.alt-section {
  background: var(--cream);
  padding: var(--spacing-section) 0;
}
.alt-section .section-head h2 { color: var(--text-dark); }
.alt-section .section-head h2::after { background: var(--copper); }
.alt-section .section-head p { color: rgba(26,42,58,.55); }
.alt-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 64px;
}
.alt-row:last-child { margin-bottom: 0; }
.alt-row.reverse .alt-media { order: 2; }
.alt-media {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  position: relative;
}
.alt-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,26,47,.12), transparent 50%);
  z-index: 1;
  pointer-events: none;
}
.alt-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform .6s ease;
}
.alt-row:hover .alt-media img { transform: scale(1.04); }
.alt-content { padding: 10px 0; }
.alt-tag {
  display: inline-block;
  background: rgba(184,115,51,.14);
  color: var(--copper);
  font-size: 13px;
  font-weight: 700;
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.alt-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.4;
}
.alt-text {
  font-size: 15px;
  color: rgba(26,42,58,.72);
  line-height: 1.85;
}

/* ===== Stats Section ===== */
.stats-section {
  background: var(--primary);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,115,51,.4), transparent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-item {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-card);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(184,115,51,.25);
  transform: translateY(-4px);
}
.stat-number {
  font-size: 48px;
  font-weight: 900;
  color: var(--copper-light);
  line-height: 1;
  display: block;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,.7);
  font-weight: 500;
}

/* ===== Topics Section ===== */
.topics-section {
  background: var(--primary-dark);
  padding: var(--spacing-section) 0;
}
.topics-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 760px;
  margin: 0 auto;
}
.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,.78);
  transition: var(--transition);
}
.topic-tag i { color: var(--copper); font-size: 13px; }
.topic-tag:hover {
  background: rgba(184,115,51,.14);
  border-color: rgba(184,115,51,.3);
  color: var(--copper-light);
  transform: translateY(-2px);
}

/* ===== FAQ Section ===== */
.faq-section {
  background: var(--primary);
  padding: var(--spacing-section) 0;
}
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  margin-bottom: 14px;
  transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover { border-color: rgba(184,115,51,.2); }
.faq-item.active {
  border-color: rgba(184,115,51,.3);
  background: rgba(255,255,255,.06);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.faq-question i {
  font-size: 16px;
  color: var(--copper);
  transition: transform .4s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  padding: 0 24px;
  color: rgba(255,255,255,.6);
  font-size: 15px;
  line-height: 1.8;
}
.faq-answer p { padding-bottom: 20px; }

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(rgba(16,42,67,.8), rgba(16,42,67,.92)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 70px 0;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,.05);
}
.cta-content h2 {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}
.cta-content p {
  font-size: 16px;
  color: rgba(255,255,255,.65);
  margin-bottom: 28px;
}
.cta-content .btn { font-size: 16px; }

/* ===== Footer ===== */
.site-footer {
  background: #060F1A;
  padding: 64px 0 0;
  border-top: 1px solid rgba(255,255,255,.04);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,115,51,.3), transparent);
}
.footer-brand { margin-bottom: 24px; }
.footer-logo {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo i {
  color: var(--copper);
  font-size: 20px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,.45);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col { margin-bottom: 24px; }
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--copper);
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.5);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--copper-light); padding-left: 4px; }
.footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  margin-bottom: 10px;
  line-height: 1.7;
}
.footer-col p i { color: var(--copper); margin-right: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.05);
  padding: 20px 0;
  text-align: center;
  margin-top: 24px;
}
.footer-bottom p {
  font-size: 14px;
  color: rgba(255,255,255,.35);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .alt-row { gap: 36px; }
  .alt-media img { height: 300px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .banner-title { font-size: 38px; }
}
@media (max-width: 768px) {
  .header-search { display: none; }
  .search-toggle { display: flex; }
  .header-top { padding: 10px 0 4px; }
  .brand-name { font-size: 18px; }
  .brand-icon { width: 36px; height: 36px; font-size: 15px; }
  .nav-links { gap: 2px; }
  .nav-link { padding: 8px 12px; font-size: 14px; }
  .hot-trigger { padding: 6px 12px; font-size: 13px; }
  .page-banner { padding: 54px 0 64px; }
  .banner-title { font-size: 30px; }
  .banner-subtitle { font-size: 15px; }
  .alt-section { padding: var(--spacing-mobile) 0; }
  .alt-row { grid-template-columns: 1fr; gap: 24px; }
  .alt-row.reverse .alt-media { order: 0; }
  .alt-media img { height: 220px; }
  .alt-title { font-size: 20px; }
  .stats-section { padding: 50px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-number { font-size: 38px; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 26px; }
  .topics-grid { gap: 10px; }
  .topic-tag { padding: 8px 16px; font-size: 13px; }
  .faq-section { padding: var(--spacing-mobile) 0; }
  .faq-question { padding: 16px 18px; font-size: 15px; }
  .faq-answer { padding: 0 18px; }
  .cta-banner { padding: 50px 0; }
  .cta-content h2 { font-size: 24px; }
  .btn { padding: 11px 22px; font-size: 14px; }
}
@media (max-width: 520px) {
  .brand-name { font-size: 16px; letter-spacing: .5px; }
  .brand-icon { width: 32px; height: 32px; }
  .banner-title { font-size: 26px; }
  .banner-subtitle { font-size: 14px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 32px; }
  .stat-item { padding: 24px 12px; }
  .alt-media img { height: 180px; }
  .footer-bottom p { font-size: 13px; }
}

/* roulang page: category2 */
:root {
      --thames-deep: #0A1A2F;
      --thames-blue: #102A43;
      --london-copper: #C07C40;
      --london-copper-dark: #B87333;
      --windsor-cream: #F5EFE6;
      --text-light: #EDE8DF;
      --text-body: #DAd5CB;
      --text-muted: rgba(237, 232, 223, 0.68);
      --glass-bg: rgba(255, 255, 255, 0.07);
      --glass-border: rgba(255, 255, 255, 0.16);
      --radius-xl: 22px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.14);
      --shadow-md: 0 14px 38px rgba(0, 0, 0, 0.24);
      --shadow-glow: 0 6px 28px rgba(192, 124, 64, 0.4);
      --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
      --space-section: 96px;
      --space-section-mobile: 60px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--thames-deep);
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
      background-size: 64px 64px;
      color: var(--text-light);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--london-copper);
      text-decoration: none;
      transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    }

    a:hover {
      color: var(--windsor-cream);
    }

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

    button,
    input {
      font-family: var(--font-main);
      font-size: 15px;
    }

    .grid-container {
      max-width: 1200px;
    }

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

    /* ===== Header ===== */
    .site-header {
      position: relative;
      z-index: 1000;
      background: rgba(10, 26, 47, 0.96);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      transition: box-shadow 0.3s ease, background 0.3s ease;
    }

    .site-header.is-sticky {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(10, 26, 47, 0.88);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
      border-bottom-color: rgba(192, 124, 64, 0.2);
    }

    .header-top {
      padding: 12px 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 22px;
      letter-spacing: 0.5px;
      color: var(--text-light);
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--london-copper), var(--london-copper-dark));
      color: var(--thames-deep);
      border-radius: 10px;
      font-size: 18px;
      box-shadow: var(--shadow-glow);
    }

    .brand-name {
      background: linear-gradient(90deg, #FFFFFF 0%, #E7D7C2 65%, var(--london-copper) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .header-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .header-search {
      display: flex;
      align-items: center;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .header-search:focus-within {
      border-color: var(--london-copper);
      box-shadow: 0 0 0 3px rgba(192, 124, 64, 0.25);
    }

    .header-search input {
      background: transparent;
      border: none;
      outline: none;
      color: var(--text-light);
      padding: 9px 14px;
      width: 210px;
    }

    .header-search input::placeholder {
      color: rgba(237, 232, 223, 0.5);
    }

    .search-btn {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--london-copper);
      border: none;
      color: var(--thames-deep);
      font-weight: 700;
      font-size: 14px;
      padding: 9px 16px;
      cursor: pointer;
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    .search-btn:hover {
      background: var(--windsor-cream);
      box-shadow: var(--shadow-glow);
    }

    .search-btn:focus-visible,
    .brand-logo:focus-visible,
    .nav-link:focus-visible,
    .hot-trigger:focus-visible {
      outline: 2px solid var(--london-copper);
      outline-offset: 4px;
      border-radius: 4px;
    }

    .search-toggle {
      display: none;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.14);
      color: var(--text-light);
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .header-nav {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      padding: 8px 0;
    }

    .nav-link {
      position: relative;
      color: var(--text-body);
      font-size: 15px;
      font-weight: 600;
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      transition: color 0.25s ease, background 0.25s ease;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--text-light);
      background: rgba(255, 255, 255, 0.07);
    }

    .nav-link.active {
      color: var(--text-light);
      background: rgba(192, 124, 64, 0.14);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 4px;
      height: 2px;
      background: var(--london-copper);
      border-radius: 2px;
    }

    .nav-hot {
      position: relative;
      margin-left: auto;
      padding-right: 4px;
    }

    .hot-trigger {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--text-body);
      font-size: 14px;
      font-weight: 600;
      padding: 9px 14px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      transition: all 0.25s ease;
    }

    .hot-trigger:hover {
      background: rgba(192, 124, 64, 0.15);
      color: var(--text-light);
    }

    .hot-trigger i.fa-fire {
      color: var(--london-copper);
    }

    .hot-dropdown {
      position: absolute;
      right: 0;
      top: calc(100% + 10px);
      min-width: 160px;
      background: rgba(16, 42, 67, 0.98);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 10px;
      box-shadow: var(--shadow-md);
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all 0.3s ease;
      backdrop-filter: blur(14px);
      z-index: 500;
    }

    .nav-hot:hover .hot-dropdown,
    .hot-trigger:focus + .hot-dropdown {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .hot-dropdown a {
      display: block;
      padding: 9px 12px;
      color: var(--text-body);
      font-size: 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

    .hot-dropdown a:hover {
      background: rgba(192, 124, 64, 0.15);
      color: var(--text-light);
      padding-left: 16px;
    }

    /* ===== Hero ===== */
    .page-hero {
      position: relative;
      min-height: 480px;
      display: flex;
      align-items: center;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      padding: 80px 0;
      isolation: isolate;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(105deg, rgba(10, 26, 47, 0.96) 20%, rgba(10, 26, 47, 0.78) 55%, rgba(16, 42, 67, 0.45) 100%);
      z-index: -1;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(ellipse at 85% 40%, rgba(192, 124, 64, 0.18), transparent 55%);
      z-index: -1;
    }

    .hero-content {
      max-width: 640px;
    }

    .hero-breadcrumbs {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.08);
      padding: 7px 14px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      margin-bottom: 26px;
    }

    .hero-breadcrumbs a {
      color: var(--text-body);
    }

    .hero-breadcrumbs a:hover {
      color: var(--london-copper);
    }

    .hero-breadcrumbs .sep {
      color: var(--text-muted);
      opacity: 0.6;
    }

    .page-hero h1 {
      font-size: 46px;
      line-height: 1.15;
      font-weight: 900;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .page-hero h1 .divider {
      color: var(--london-copper);
      padding: 0 8px;
      font-weight: 300;
    }

    .page-hero .hero-sub {
      font-size: 17px;
      color: var(--text-body);
      margin-bottom: 34px;
      max-width: 520px;
    }

    .hero-cta-row {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      background: linear-gradient(135deg, var(--london-copper), var(--london-copper-dark));
      color: var(--thames-deep);
      font-weight: 700;
      font-size: 15px;
      padding: 13px 28px;
      border-radius: 10px;
      border: none;
      cursor: pointer;
      transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
      box-shadow: 0 4px 18px rgba(192, 124, 64, 0.3);
    }

    .btn-primary:hover {
      color: var(--thames-deep);
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
      background: linear-gradient(135deg, #D58A4C, var(--london-copper));
    }

    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .card-arrow:focus-visible {
      outline: 3px solid var(--london-copper);
      outline-offset: 4px;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-light);
      font-weight: 600;
      font-size: 15px;
      padding: 13px 28px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.22);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      color: var(--text-light);
      border-color: var(--london-copper);
      transform: translateY(-2px);
    }

    .hero-stats {
      margin-left: auto;
    }

    .hero-stats .glass-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px 28px;
      padding: 28px 30px;
      min-width: 300px;
    }

    .stat-item {
      text-align: center;
    }

    .stat-item .stat-num {
      font-size: 34px;
      font-weight: 900;
      color: var(--text-light);
      line-height: 1.1;
      letter-spacing: 0.5px;
    }

    .stat-item .stat-num span {
      color: var(--london-copper);
    }

    .stat-item .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .glass-card {
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: var(--radius-xl);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: var(--shadow-sm);
      padding: 28px 30px;
    }

    /* ===== Services ===== */
    .services-section {
      background: linear-gradient(180deg, var(--thames-deep) 0%, var(--thames-blue) 100%);
      padding: var(--space-section) 0;
      position: relative;
    }

    .section-top {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
      margin-bottom: 46px;
    }

    .section-titleblock {
      max-width: 640px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-light);
      margin-bottom: 12px;
      position: relative;
      padding-left: 20px;
    }

    .section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      bottom: 8px;
      width: 5px;
      border-radius: 4px;
      background: linear-gradient(180deg, var(--london-copper), var(--london-copper-dark));
      box-shadow: 0 0 14px rgba(192, 124, 64, 0.5);
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .services-grid {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .service-card {
      display: flex;
      align-items: center;
      gap: 28px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 28px 32px;
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(180deg, var(--london-copper), transparent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(192, 124, 64, 0.4);
      box-shadow: var(--shadow-md);
      background: rgba(255, 255, 255, 0.09);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .card-index-num {
      flex-shrink: 0;
      font-size: 44px;
      font-weight: 900;
      line-height: 1;
      width: 76px;
      color: transparent;
      -webkit-text-stroke: 1.5px var(--london-copper);
      text-stroke: 1.5px var(--london-copper);
      font-family: Georgia, serif;
      opacity: 0.9;
    }

    .card-body {
      flex: 1;
      min-width: 0;
    }

    .card-body h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .card-body p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 640px;
    }

    .card-arrow {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(192, 124, 64, 0.12);
      border: 1px solid rgba(192, 124, 64, 0.3);
      border-radius: 50%;
      color: var(--london-copper);
      font-size: 16px;
      transition: all 0.3s ease;
    }

    .card-arrow:hover {
      background: var(--london-copper);
      color: var(--thames-deep);
      transform: translateX(4px);
      box-shadow: var(--shadow-glow);
    }

    /* ===== Workflow ===== */
    .workflow-section {
      background: var(--windsor-cream);
      color: var(--thames-deep);
      padding: var(--space-section) 0;
    }

    .workflow-section .section-title {
      color: var(--thames-deep);
    }

    .workflow-section .section-title::before {
      background: linear-gradient(180deg, var(--london-copper-dark), var(--london-copper));
      box-shadow: 0 0 14px rgba(184, 115, 51, 0.4);
    }

    .workflow-section .section-desc {
      color: rgba(10, 26, 47, 0.75);
    }

    .workflow-layout {
      display: flex;
      align-items: center;
      gap: 50px;
      flex-wrap: wrap;
    }

    .workflow-media {
      flex: 1;
      min-width: 300px;
    }

    .workflow-media .media-wrap {
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .workflow-media img {
      width: 100%;
      height: 340px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .workflow-media .media-wrap:hover img {
      transform: scale(1.04);
    }

    .media-badge {
      position: absolute;
      left: 20px;
      bottom: 20px;
      background: rgba(10, 26, 47, 0.78);
      backdrop-filter: blur(10px);
      color: var(--text-light);
      font-size: 13px;
      font-weight: 600;
      padding: 8px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.18);
    }

    .workflow-steps {
      flex: 1;
      min-width: 300px;
    }

    .workflow-step {
      display: flex;
      gap: 20px;
      padding: 22px 0;
      border-bottom: 1px solid rgba(10, 26, 47, 0.1);
      position: relative;
    }

    .workflow-step:last-child {
      border-bottom: none;
    }

    .step-num {
      flex-shrink: 0;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--london-copper), var(--london-copper-dark));
      color: var(--thames-deep);
      font-weight: 900;
      font-size: 16px;
      box-shadow: 0 4px 14px rgba(184, 115, 51, 0.35);
    }

    .step-content h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--thames-deep);
      margin-bottom: 4px;
    }

    .step-content p {
      font-size: 14px;
      color: rgba(10, 26, 47, 0.72);
      line-height: 1.7;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: linear-gradient(180deg, var(--thames-blue) 0%, var(--thames-deep) 100%);
      padding: var(--space-section) 0;
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-wrap .section-titleblock {
      margin-bottom: 38px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .faq-item.is-open {
      border-color: rgba(192, 124, 64, 0.4);
      box-shadow: var(--shadow-md);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 22px 26px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-light);
      line-height: 1.5;
      user-select: none;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(192, 124, 64, 0.15);
      border: 1px solid rgba(192, 124, 64, 0.35);
      color: var(--london-copper);
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.35s ease, background 0.3s ease;
    }

    .faq-icon::before {
      content: "+";
      display: block;
      line-height: 1;
      transform: rotate(0deg);
      transition: transform 0.35s ease;
    }

    .faq-item.is-open .faq-icon::before {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
      padding: 0 26px;
      color: var(--text-body);
      font-size: 14.5px;
      line-height: 1.8;
      border-top: 1px solid transparent;
    }

    .faq-item.is-open .faq-answer {
      max-height: 420px;
      padding: 18px 26px 24px;
      border-top-color: rgba(255, 255, 255, 0.08);
    }

    /* ===== CTA ===== */
    .cta-bar {
      position: relative;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      padding: 80px 0;
      isolation: isolate;
    }

    .cta-bar::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(10, 26, 47, 0.94), rgba(16, 42, 67, 0.82));
      z-index: -1;
    }

    .cta-inner {
      text-align: center;
      max-width: 680px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 10px;
      line-height: 1.35;
    }

    .cta-inner p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 30px;
    }

    .cta-btns {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #071524;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 64px 0 0;
      position: relative;
      overflow: hidden;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 34px;
      background-image: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.035) 0,
        rgba(255, 255, 255, 0.035) 1px,
        transparent 1px,
        transparent 80px
      );
    }

    .footer-brand .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 21px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 14px;
    }

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

    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--london-copper);
      border-radius: 2px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      color: var(--text-muted);
      padding: 5px 0;
      transition: color 0.25s ease, padding-left 0.25s ease;
    }

    .footer-col a:hover {
      color: var(--london-copper);
      padding-left: 6px;
    }

    .footer-col p {
      font-size: 14px;
      color: var(--text-muted);
      padding: 4px 0;
    }

    .footer-col p i {
      color: var(--london-copper);
      margin-right: 7px;
    }

    .footer-bottom {
      margin-top: 50px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.07);
      text-align: center;
      font-size: 13px;
      color: rgba(237, 232, 223, 0.45);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .hero-stats {
        margin-left: 0;
        margin-top: 30px;
      }

      .page-hero {
        min-height: auto;
        padding: 64px 0;
      }

      .page-hero h1 {
        font-size: 36px;
      }

      .workflow-layout {
        gap: 30px;
      }
    }

    @media (max-width: 767px) {
      .section-pad {
        padding: var(--space-section-mobile) 0;
      }

      .services-section,
      .workflow-section,
      .faq-section {
        padding: var(--space-section-mobile) 0;
      }

      .page-hero {
        padding: 48px 0;
      }

      .page-hero h1 {
        font-size: 30px;
      }

      .page-hero .hero-sub {
        font-size: 15px;
      }

      .hero-stats .glass-card {
        min-width: 0;
        padding: 22px;
        gap: 18px;
      }

      .stat-item .stat-num {
        font-size: 28px;
      }

      .section-title {
        font-size: 26px;
      }

      .service-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding: 24px;
      }

      .card-index-num {
        font-size: 36px;
        width: auto;
      }

      .card-arrow {
        position: absolute;
        top: 22px;
        right: 20px;
        width: 36px;
        height: 36px;
        font-size: 14px;
      }

      .workflow-media img {
        height: 240px;
      }

      .faq-question {
        font-size: 15px;
        padding: 18px 18px;
      }

      .faq-answer {
        padding: 0 18px;
      }

      .faq-item.is-open .faq-answer {
        padding: 14px 18px 20px;
      }

      .cta-inner h2 {
        font-size: 23px;
      }

      .cta-btns .btn-primary,
      .cta-btns .btn-secondary {
        padding: 12px 20px;
        font-size: 14px;
      }

      .footer-brand p {
        max-width: 100%;
      }
    }

    @media (max-width: 640px) {
      .header-search {
        display: none;
        position: absolute;
        top: calc(100% + 6px);
        right: 0;
        left: 0;
        z-index: 300;
        background: rgba(10, 26, 47, 0.97);
        margin: 0 12px;
      }

      .header-search.is-open {
        display: flex;
      }

      .header-search input {
        flex: 1;
        width: auto;
      }

      .search-toggle {
        display: inline-flex;
      }

      .header-top {
        position: relative;
      }

      .nav-links {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 6px 0;
      }

      .nav-links::-webkit-scrollbar {
        display: none;
      }

      .nav-link {
        padding: 9px 14px;
        font-size: 14px;
        flex-shrink: 0;
      }

      .nav-hot {
        flex-shrink: 0;
        margin-left: 6px;
      }

      .hot-trigger {
        padding: 8px 12px;
        font-size: 13px;
      }

      .brand-name {
        font-size: 19px;
      }

      .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 15px;
      }

      .section-top {
        margin-bottom: 30px;
      }

      .section-desc {
        font-size: 14.5px;
      }

      .service-card {
        padding: 20px 18px;
      }

      .card-body h3 {
        font-size: 17px;
      }

      .card-body p {
        font-size: 13.5px;
        padding-right: 24px;
      }
    }

/* roulang page: article */
:root {
  --deep-blue: #0A1A2F;
  --deep-blue-2: #102A43;
  --deep-blue-3: #162E4A;
  --copper: #B87333;
  --copper-light: #C07C40;
  --cream: #F5EFE6;
  --red: #B23A48;
  --text-light: #E8EAF0;
  --text-muted: #8FA0B5;
  --border-glass: rgba(255,255,255,0.14);
  --glass-bg: rgba(255,255,255,0.06);
  --radius-card: 18px;
  --radius-btn: 10px;
  --radius-badge: 50px;
  --shadow-sm: 0 4px 12px rgba(0,0,0,.12);
  --shadow-md: 0 12px 32px rgba(0,0,0,.22);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.3);
  --transition: all .25s ease;
  --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--deep-blue);
  color: var(--text-light);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
ul, ol { list-style-position: inside; }
::selection { background: rgba(184,115,51,.55); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #0A1A2F; }
::-webkit-scrollbar-thumb { background: rgba(184,115,51,.55); border-radius: 20px; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(184,115,51,.6);
  outline-offset: 3px;
}
.grid-container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.container-narrow { max-width: 880px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.btn-copper {
  background: linear-gradient(135deg, #C07C40 0%, #B87333 100%);
  color: var(--deep-blue);
}
.btn-copper:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(184,115,51,.35);
}
.btn-outline-dark {
  background: transparent;
  border: 2px solid var(--deep-blue);
  color: var(--deep-blue);
}
.btn-outline-dark:hover {
  background: var(--deep-blue);
  color: #fff;
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(184,115,51,.6);
  outline-offset: 4px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,26,47,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled {
  background: rgba(8,20,36,.92);
  box-shadow: 0 8px 24px rgba(0,0,0,.28);
}
.header-top { padding: 12px 0; }
.brand-logo { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(184,115,51,.32), rgba(10,26,47,.55));
  color: var(--copper-light);
  font-size: 17px;
}
.brand-name { font-size: 23px; font-weight: 900; color: #fff; letter-spacing: 1px; white-space: nowrap; }
.header-right { display: flex; align-items: center; gap: 12px; }
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-btn);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.header-search:focus-within {
  border-color: var(--copper-light);
  box-shadow: 0 0 0 4px rgba(184,115,51,.15);
}
.header-search input {
  width: 200px;
  padding: 8px 14px;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 14px;
  outline: none;
}
.header-search input::placeholder { color: rgba(255,255,255,.5); }
.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  background: linear-gradient(135deg, var(--copper-light), var(--copper));
  color: var(--deep-blue);
  border: none;
  font-size: 13px;
  font-weight: 700;
  transition: filter .2s ease;
}
.search-btn:hover { filter: brightness(1.12); }
.search-toggle { display: none; }
.header-nav { border-top: 1px solid rgba(255,255,255,.06); padding: 8px 0; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  color: rgba(255,255,255,.82);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.nav-link.active { color: var(--copper-light); background: rgba(184,115,51,.13); font-weight: 700; }
.nav-hot { position: relative; margin-left: auto; }
.hot-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  font-size: 14px;
  color: rgba(255,255,255,.82);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.hot-trigger:hover { color: var(--copper-light); border-color: rgba(184,115,51,.4); }
.hot-trigger i { font-size: 12px; }
.hot-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 180px;
  background: rgba(10,26,47,.96);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  padding: 10px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .25s ease;
  z-index: 300;
}
.hot-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
.hot-dropdown a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: rgba(255,255,255,.8);
  border-radius: 8px;
  transition: var(--transition);
}
.hot-dropdown a:hover { background: rgba(184,115,51,.14); color: var(--copper-light); }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.breadcrumb a { color: rgba(255,255,255,.82); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--copper-light); }
.breadcrumb-sep { opacity: .5; }
.breadcrumb-current { color: var(--copper-light); opacity: 1; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Article Hero */
.article-hero {
  position: relative;
  padding: 64px 0 72px;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,26,47,.97) 20%, rgba(10,26,47,.84) 60%, rgba(16,42,67,.92));
}
.article-hero .grid-container { position: relative; z-index: 2; }
.hero-site-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.68);
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.hero-site-tag i { color: var(--copper-light); }
.article-hero-content { max-width: 860px; }
.article-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(184,115,51,.2);
  border: 1px solid rgba(184,115,51,.4);
  border-radius: var(--radius-badge);
  color: #E0A56B;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.article-title {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin: 0 0 18px;
  max-width: 880px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: rgba(255,255,255,.72);
  font-size: 14px;
}
.meta-item { display: inline-flex; align-items: center; gap: 7px; }
.meta-item i { color: var(--copper-light); }
.hero-glass-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 20px;
  padding: 28px 24px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 12px 32px rgba(0,0,0,.2);
  text-align: center;
}
.hero-glass-num {
  font-size: 56px;
  font-weight: 900;
  background: linear-gradient(135deg, #E0A56B, var(--copper));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.hero-glass-label { font-size: 14px; font-weight: 700; color: #fff; margin: 8px 0 14px; letter-spacing: 2px; }
.hero-glass-line { width: 46px; height: 3px; background: linear-gradient(90deg, var(--copper), transparent); margin: 0 auto 12px; border-radius: 2px; }
.hero-glass-desc { font-size: 13px; color: rgba(255,255,255,.62); line-height: 1.7; }

/* Article Main */
.article-main {
  background: linear-gradient(180deg, var(--deep-blue) 0%, #0C1C33 100%);
  padding: 56px 0 72px;
  position: relative;
  z-index: 1;
}
.article-body-card {
  position: relative;
  background: var(--cream);
  border-radius: 24px;
  padding: 48px 56px;
  box-shadow: var(--shadow-lg);
  border-top: 4px solid var(--copper);
}
.article-body { font-size: 16px; line-height: 1.9; color: #333D4E; }
.article-body h2 {
  font-size: 25px;
  font-weight: 800;
  color: var(--deep-blue);
  margin: 44px 0 18px;
  padding-left: 16px;
  border-left: 4px solid var(--copper);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--deep-blue-2);
  margin: 32px 0 14px;
}
.article-body p { margin: 16px 0; font-size: 16px; line-height: 1.9; color: #3A4456; }
.article-body ul, .article-body ol { margin: 18px 0; padding-left: 24px; }
.article-body li { margin: 8px 0; line-height: 1.8; color: #3A4456; }
.article-body blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: rgba(184,115,51,.08);
  border-left: 4px solid var(--copper);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: #5A4A3A;
}
.article-body img {
  max-width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  margin: 24px 0;
}
.article-body a { color: var(--copper); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: #8B5A2B; }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid #D8D2C7; padding: 12px 16px; text-align: left; }
.article-body th { background: var(--deep-blue); color: #fff; font-weight: 700; }
.article-body pre {
  background: var(--deep-blue);
  color: var(--text-light);
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-body code {
  background: rgba(10,26,47,.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: .9em;
}
.article-body hr { border: none; border-top: 1px solid rgba(10,26,47,.15); margin: 32px 0; }
.article-actions {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid rgba(10,26,47,.12);
  display: flex;
  justify-content: center;
}

/* Not Found */
.not-found-section {
  position: relative;
  padding: 140px 0;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.not-found-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,26,47,.94), rgba(10,26,47,.86));
}
.not-found-section .grid-container { position: relative; z-index: 2; width: 100%; }
.not-found-card {
  text-align: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 24px;
  padding: 60px 40px;
  backdrop-filter: blur(16px);
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}
.not-found-icon { font-size: 42px; color: var(--copper-light); margin-bottom: 18px; }
.not-found-title { font-size: 32px; font-weight: 900; color: #fff; margin-bottom: 14px; }
.not-found-desc { font-size: 16px; color: rgba(255,255,255,.7); margin-bottom: 28px; }

/* Explore Section */
.explore-section {
  padding: 72px 0 80px;
  background: #0C1C33;
  position: relative;
  z-index: 1;
}
.explore-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
}
.explore-heading h2 {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  position: relative;
  padding-left: 16px;
  margin: 0;
}
.explore-heading h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 5px;
  width: 4px;
  height: 26px;
  background: var(--copper);
  border-radius: 2px;
}
.explore-heading p { font-size: 14px; color: rgba(255,255,255,.55); margin: 0; }
.explore-card {
  display: flex;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  height: 100%;
  min-height: 220px;
}
.explore-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(184,115,51,.5);
}
.explore-img-wrap { position: relative; flex: 0 0 40%; max-width: 40%; overflow: hidden; }
.explore-img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.explore-card:hover .explore-img-wrap img { transform: scale(1.05); }
.explore-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}
.explore-info h3 { font-size: 19px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.explore-info p {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  line-height: 1.7;
  margin-bottom: 14px;
}
.explore-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--copper-light);
}

/* CTA Banner */
.cta-banner {
  position: relative;
  padding: 64px 0;
  background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  z-index: 1;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10,26,47,.92), rgba(16,42,67,.86));
}
.cta-banner .grid-container { position: relative; z-index: 2; }
.cta-content { text-align: center; }
.cta-content h2 { font-size: 32px; font-weight: 900; color: #fff; margin-bottom: 12px; }
.cta-content p { font-size: 16px; color: rgba(255,255,255,.75); margin-bottom: 26px; }

/* Footer */
.site-footer {
  background: #071320;
  padding: 72px 0 0;
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--copper), transparent 65%);
}
.footer-brand .footer-logo {
  font-size: 24px;
  font-weight: 900;
  color: #fff;
  display: inline-block;
  margin-bottom: 14px;
}
.footer-brand p {
  color: rgba(255,255,255,.6);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
  margin-bottom: 0;
}
.footer-col h4 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--copper);
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: 14px;
  margin-bottom: 12px;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-col a:hover { color: var(--copper-light); padding-left: 4px; }
.footer-col p { color: rgba(255,255,255,.6); font-size: 14px; margin-bottom: 12px; }
.footer-col p i { color: var(--copper-light); margin-right: 6px; }
.footer-bottom {
  margin-top: 48px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
}
.footer-bottom p { color: rgba(255,255,255,.45); font-size: 14px; margin: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .article-title { font-size: 34px; }
  .hero-glass-card { padding: 22px 18px; }
  .hero-glass-num { font-size: 44px; }
  .cta-content h2 { font-size: 28px; }
}
@media (max-width: 768px) {
  .header-search {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 16px;
    left: 16px;
    z-index: 200;
    background: rgba(10,26,47,.96);
    border: 1px solid rgba(255,255,255,.1);
    box-shadow: var(--shadow-md);
    padding: 10px;
  }
  .header-search.open { display: flex; }
  .header-search input { flex: 1; width: auto; }
  .search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
  }
  .header-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav-links { gap: 8px; padding-bottom: 4px; min-width: max-content; }
  .nav-link { font-size: 14px; padding: 7px 12px; }
  .hot-trigger { font-size: 13px; padding: 6px 12px; }
  .article-hero { padding: 44px 0 52px; }
  .article-title { font-size: 28px; }
  .breadcrumb { margin-bottom: 20px; }
  .article-body-card { padding: 30px 22px; border-radius: 16px; }
  .article-main { padding: 40px 0 56px; }
  .article-body h2 { font-size: 22px; }
  .article-body p, .article-body li { font-size: 15px; }
  .explore-section { padding: 56px 0 64px; }
  .explore-heading { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 28px; }
  .explore-heading h2 { font-size: 26px; }
  .cta-banner { padding: 48px 0; background-attachment: scroll; }
  .cta-content h2 { font-size: 24px; }
  .not-found-section { padding: 100px 0; }
  .not-found-card { padding: 44px 24px; }
  .footer-bottom { margin-top: 32px; }
}
@media (max-width: 520px) {
  .brand-name { font-size: 20px; }
  .brand-icon { width: 34px; height: 34px; font-size: 14px; }
  .article-hero-content .article-title { font-size: 24px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-body-card { padding: 24px 16px; }
  .article-actions .btn { width: 100%; }
  .explore-card { flex-direction: column; min-height: 0; }
  .explore-img-wrap { flex: 0 0 auto; max-width: 100%; height: 180px; }
  .explore-img-wrap img { position: absolute; }
  .explore-info { padding: 20px; }
  .cta-content p { font-size: 14px; }
  .not-found-title { font-size: 26px; }
}

/* roulang page: category3 */
:root {
  --thames-blue: #0A1A2F;
  --thames-blue-2: #102A43;
  --thames-blue-3: #0D1F36;
  --thames-deep: #081625;
  --london-copper: #B87333;
  --london-copper-light: #C07C40;
  --windsor-cream: #F5EFE6;
  --british-red: #B23A48;
  --text-main: #E8E4DC;
  --text-secondary: rgba(232, 228, 220, 0.72);
  --text-muted: rgba(232, 228, 220, 0.48);
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.15);
  --card-radius: 18px;
  --btn-radius: 10px;
  --shadow-basic: 0 4px 12px rgba(0, 0, 0, .12);
  --shadow-hover: 0 12px 32px rgba(0, 0, 0, .22);
  --transition-base: all .3s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--thames-blue);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--london-copper-light);
  text-decoration: none;
  transition: var(--transition-base);
}
a:hover {
  color: var(--london-copper);
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
}
ul {
  list-style: none;
}
.grid-container {
  max-width: 1200px;
}

/* ===== 导航栏 ===== */
.site-header {
  position: relative;
  z-index: 100;
  background: var(--thames-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition-base);
}
.site-header.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 26, 47, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.header-top {
  padding: 14px 0;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--london-copper), var(--london-copper-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--thames-blue);
  font-size: 18px;
  box-shadow: 0 0 16px rgba(184, 115, 51, 0.35);
}
.brand-name {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: 0.5px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition-base);
}
.header-search:focus-within {
  border-color: var(--london-copper);
  box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.18);
}
.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 14px;
  padding: 8px 14px;
  width: 200px;
}
.header-search input::placeholder {
  color: var(--text-muted);
}
.search-btn {
  background: var(--london-copper);
  border: none;
  color: var(--thames-blue);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-base);
}
.search-btn:hover {
  background: var(--london-copper-light);
}
.search-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 15px;
  justify-content: center;
  align-items: center;
}
.header-nav {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  flex-wrap: nowrap;
}
.nav-link {
  display: inline-block;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition-base);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}
.nav-link.active {
  color: var(--london-copper-light);
  background: rgba(184, 115, 51, 0.12);
  font-weight: 700;
}
.nav-hot {
  position: relative;
  margin-left: auto;
}
.hot-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(184, 115, 51, 0.15);
  border: 1px solid rgba(184, 115, 51, 0.25);
  border-radius: 20px;
  color: var(--london-copper-light);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}
.hot-trigger:hover {
  background: rgba(184, 115, 51, 0.25);
}
.hot-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--thames-blue-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 10px;
  min-width: 150px;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: var(--transition-base);
  z-index: 50;
}
.hot-dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.hot-dropdown a {
  display: block;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}
.hot-dropdown a:hover {
  color: var(--london-copper-light);
  background: rgba(255, 255, 255, 0.06);
}

/* ===== 页面横幅 ===== */
.page-banner {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 26, 47, 0.92) 0%, rgba(16, 42, 67, 0.78) 60%, rgba(10, 26, 47, 0.85) 100%);
  z-index: 1;
}
.breadcrumb {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 22px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--london-copper-light);
}
.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.5;
}
.page-banner h1 {
  position: relative;
  z-index: 2;
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 16px;
}
.page-banner h1 span {
  color: var(--london-copper-light);
}
.banner-sub {
  position: relative;
  z-index: 2;
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== 主体双栏 ===== */
.main-wrap {
  background: var(--thames-blue-3);
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  padding: 80px 0;
}
.info-block {
  display: flex;
  gap: 36px;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 28px;
  margin-bottom: 32px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-base);
}
.info-block:hover {
  border-color: rgba(192, 124, 64, 0.4);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.info-block.reverse {
  flex-direction: row-reverse;
}
.block-media {
  flex: 0 0 42%;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
}
.block-media img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  transition: transform .5s ease;
}
.info-block:hover .block-media img {
  transform: scale(1.05);
}
.block-text {
  flex: 1;
}
.block-tag {
  display: inline-block;
  background: rgba(184, 115, 51, 0.18);
  border: 1px solid rgba(184, 115, 51, 0.3);
  color: var(--london-copper-light);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.block-text h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
}
.block-text p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 14px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--london-copper-light);
  transition: var(--transition-base);
}
.text-link i {
  font-size: 12px;
  transition: transform .3s ease;
}
.text-link:hover {
  color: var(--london-copper);
}
.text-link:hover i {
  transform: translateX(4px);
}

/* ===== 侧边栏 ===== */
.sidebar-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-base);
}
.sidebar-box:hover {
  border-color: rgba(255, 255, 255, 0.22);
}
.sidebar-box h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-box h3::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--london-copper);
  border-radius: 2px;
}
.sidebar-links a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-base);
}
.sidebar-links a:last-child {
  border-bottom: none;
}
.sidebar-links a:hover {
  color: var(--london-copper-light);
  padding-left: 8px;
}
.sidebar-links a i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgba(184, 115, 51, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--london-copper);
  font-size: 13px;
  flex-shrink: 0;
  transition: var(--transition-base);
}
.sidebar-links a:hover i {
  background: rgba(184, 115, 51, 0.28);
}
.sidebar-tips p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.sidebar-tips .tip-icon {
  font-size: 26px;
  color: var(--london-copper);
  margin-bottom: 10px;
}

/* ===== CTA条 ===== */
.cta-strip {
  background: linear-gradient(120deg, var(--thames-blue-2), #132c47 50%, var(--thames-blue-2));
  border-top: 1px solid rgba(184, 115, 51, 0.25);
  border-bottom: 1px solid rgba(184, 115, 51, 0.25);
  padding: 56px 0;
  text-align: center;
}
.cta-strip h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 24px;
  line-height: 1.4;
}
.cta-strip .btn-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--london-copper), var(--london-copper-light));
  color: var(--thames-blue);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 12px;
  transition: var(--transition-base);
  box-shadow: 0 4px 20px rgba(184, 115, 51, 0.3);
}
.cta-strip .btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(184, 115, 51, 0.45);
  color: var(--thames-blue);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--thames-blue);
  padding: 80px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head .section-bar {
  display: inline-block;
  width: 42px;
  height: 4px;
  background: var(--london-copper);
  border-radius: 4px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition-base);
}
.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.25);
}
.faq-item.active {
  border-color: rgba(184, 115, 51, 0.4);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: var(--transition-base);
}
.faq-q:hover {
  color: var(--london-copper-light);
}
.faq-q i {
  font-size: 16px;
  color: var(--london-copper);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-q i {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .45s ease;
}
.faq-item.active .faq-a {
  max-height: 400px;
}
.faq-a p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.9;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--thames-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 0;
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184, 115, 51, 0.5), transparent);
}
.footer-brand {
  margin-bottom: 24px;
}
.footer-logo {
  font-size: 24px;
  font-weight: 900;
  color: var(--text-main);
  display: inline-block;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col {
  margin-bottom: 24px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--london-copper);
  border-radius: 2px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 5px 0;
  transition: var(--transition-base);
}
.footer-col a:hover {
  color: var(--london-copper-light);
  padding-left: 6px;
}
.footer-col p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 2;
}
.footer-col p i {
  color: var(--london-copper);
  margin-right: 8px;
  width: 16px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
  margin-top: 20px;
}
.footer-bottom p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== 按钮焦点 ===== */
.btn-cta:focus-visible,
.search-btn:focus-visible,
.faq-q:focus-visible,
.search-toggle:focus-visible,
.hot-trigger:focus-visible {
  outline: 3px solid rgba(192, 124, 64, 0.5);
  outline-offset: 4px;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .page-banner h1 {
    font-size: 36px;
  }
  .info-block {
    gap: 24px;
    padding: 22px;
  }
  .block-media {
    flex-basis: 45%;
  }
  .block-media img {
    height: 200px;
  }
  .header-search input {
    width: 140px;
  }
}

@media screen and (max-width: 768px) {
  .header-top {
    padding: 10px 0;
  }
  .brand-name {
    font-size: 19px;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }
  .header-search {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    right: 16px;
    left: 16px;
    z-index: 50;
    background: var(--thames-blue-2);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-hover);
  }
  .header-search.is-open {
    display: flex;
  }
  .header-search input {
    width: auto;
    flex: 1;
  }
  .search-toggle {
    display: flex;
  }
  .nav-links {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }
  .nav-links::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    padding: 10px 14px;
    font-size: 14px;
    flex-shrink: 0;
  }
  .nav-hot {
    margin-left: 0;
    flex-shrink: 0;
  }
  .page-banner {
    padding: 60px 0 50px;
  }
  .page-banner h1 {
    font-size: 30px;
  }
  .banner-sub {
    font-size: 15px;
  }
  .main-wrap {
    padding: 50px 0;
  }
  .info-block,
  .info-block.reverse {
    flex-direction: column;
    padding: 18px;
    gap: 18px;
  }
  .block-media {
    flex-basis: auto;
    width: 100%;
  }
  .block-media img {
    height: 200px;
  }
  .block-text h2 {
    font-size: 21px;
  }
  .cta-strip {
    padding: 40px 0;
  }
  .cta-strip h2 {
    font-size: 22px;
  }
  .faq-section {
    padding: 50px 0;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .faq-q {
    font-size: 15px;
    padding: 15px 18px;
  }
  .faq-a p {
    padding: 0 18px 16px;
  }
  .site-footer {
    padding-top: 40px;
  }
}

@media screen and (max-width: 520px) {
  .brand-name {
    font-size: 17px;
  }
  .brand-icon {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }
  .page-banner h1 {
    font-size: 26px;
  }
  .page-banner {
    padding: 45px 0 38px;
  }
  .info-block {
    padding: 14px;
  }
  .block-media img {
    height: 170px;
  }
  .block-text {
    padding: 0 4px;
  }
  .sidebar-box {
    padding: 18px;
  }
  .cta-strip .btn-cta {
    padding: 12px 28px;
    font-size: 15px;
  }
  .sidebar-links a {
    font-size: 13px;
  }
}