/* roulang page: index */
:root {
  --brand-green-1: #00E68C;
  --brand-teal: #00A3A1;
  --accent-orange: #FF6B3D;
  --deep-ink: #0E1B17;
  --mist-white: #F6F8F7;
  --text-primary: #14211C;
  --text-secondary: #42554C;
  --text-muted: #7A8C84;
  --border-color: rgba(16, 42, 32, 0.12);
  --border-brand: rgba(0, 163, 161, 0.3);
  --success: #2EBD85;
  --warning: #F5A623;
  --danger: #E5484D;
  --gradient-main: linear-gradient(135deg, #00E68C 0%, #00A3A1 100%);
  --gradient-dark: linear-gradient(180deg, #0E1B17 0%, #12241E 100%);
  --card-shadow: 0 4px 20px rgba(14, 27, 23, 0.06);
  --card-shadow-hover: 0 12px 32px rgba(14, 27, 23, 0.13);
  --badge-shadow: 0 8px 24px rgba(0, 163, 161, 0.25);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --section-space: 96px;
  --shell-nav-w: 260px;
  --shell-nav-w-sm: 80px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  background: var(--mist-white);
  color: var(--text-primary);
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}
a:hover {
  color: var(--brand-teal);
}
img {
  max-width: 100%;
  height: auto;
}
button,
input {
  font-family: inherit;
}

/* 移动端顶栏 */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(135deg, #00C97A 0%, #00A3A1 100%);
  z-index: 1050;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  box-shadow: 0 2px 12px rgba(14, 27, 23, 0.2);
}
.mobile-topbar .mobile-logo {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-topbar .mobile-logo .logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  opacity: 0.9;
}
.mobile-menu-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  color: #fff;
  font-size: 18px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}
.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* 左侧导航 */
.shell-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: var(--deep-ink);
  display: flex;
  flex-direction: column;
  padding: 32px 20px 20px;
  z-index: 1040;
  transition: transform 0.3s ease, width 0.3s ease;
  overflow-y: auto;
}
.nav-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}
.nav-logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(0, 230, 140, 0.35);
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.nav-logo-text strong {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.nav-logo-text span {
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  font-weight: 400;
}
.nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: all 0.25s ease;
}
.nav-item i {
  width: 22px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}
.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}
.nav-item:hover::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent-orange);
  border-radius: 4px;
}
.nav-item.active {
  color: #fff;
  background: rgba(0, 230, 140, 0.16);
  font-weight: 600;
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent-orange);
  border-radius: 4px;
}
.nav-bottom {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-cta {
  display: block;
  text-align: center;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  background: var(--gradient-main);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  margin-bottom: 14px;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 163, 161, 0.4);
  color: #fff;
}
.nav-copyright {
  color: rgba(255, 255, 255, 0.35);
  font-size: 12px;
  text-align: center;
  margin: 0;
}

/* 主内容区 */
.main-area {
  margin-left: 260px;
  min-height: 100vh;
  background: var(--mist-white);
  transition: margin-left 0.3s ease;
}
.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(14, 27, 23, 0.96) 0%, rgba(14, 27, 23, 0.92) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 96px 0 72px;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-title {
  font-size: 48px;
  line-height: 1.2;
  font-weight: 700;
  color: #fff;
  margin: 0 0 18px;
}
.hero-title .gradient-text {
  background: linear-gradient(120deg, var(--brand-green-1), var(--brand-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 12px;
  font-weight: 500;
}
.hero-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 30px;
  max-width: 480px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.btn-brand {
  background: var(--gradient-main);
  color: #fff;
  border: none;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn-brand:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 163, 161, 0.4);
  color: #fff;
}
.btn-brand:hover i {
  transform: translateX(4px);
}
.btn-brand i {
  transition: transform 0.3s ease;
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.hero-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--brand-green-1);
  box-shadow: 0 0 0 3px rgba(0, 230, 140, 0.2);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(0, 230, 140, 0.2); }
  50% { box-shadow: 0 0 0 6px rgba(0, 230, 140, 0.05); }
}
.hero-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}
.hero-badge-1,
.hero-badge-2 {
  position: absolute;
  background: rgba(14, 27, 23, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 230, 140, 0.25);
  border-radius: 16px;
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.hero-badge-1 .badge-num,
.hero-badge-2 .badge-num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 800;
  color: var(--brand-green-1);
  line-height: 1.2;
}
.hero-badge-1 .badge-label,
.hero-badge-2 .badge-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
}
.hero-badge-1 {
  top: -14px;
  right: -10px;
}
.hero-badge-2 {
  bottom: -14px;
  left: -10px;
}

/* ===== 通用板块 ===== */
.section-block {
  padding: var(--section-space) 0;
}
.section-header {
  margin-bottom: 48px;
}
.section-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.section-title .accent-bar {
  display: inline-block;
  width: 44px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: 4px;
  margin-bottom: 14px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
}

/* ===== 痛点 ===== */
.pain-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}
.pain-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border: 1px solid transparent;
  transition: all 0.3s ease;
  position: relative;
}
.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-brand);
}
.pain-card-large {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(160deg, #fff 0%, #F8FCFA 100%);
}
.pain-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.pain-icon.orange {
  background: rgba(255, 107, 61, 0.12);
  color: var(--accent-orange);
}
.pain-icon.teal {
  background: rgba(0, 163, 161, 0.12);
  color: var(--brand-teal);
}
.pain-card-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.pain-card-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
.pain-arrow {
  position: absolute;
  bottom: 20px;
  right: 24px;
  font-size: 20px;
  color: var(--accent-orange);
  opacity: 0.6;
  transform: rotate(-45deg);
}

/* ===== 解决方案 ===== */
.solution-section {
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--section-space) 0;
}
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.step-item {
  display: flex;
  gap: 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  align-items: center;
}
.step-item:hover {
  transform: translateX(6px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-brand);
}
.step-num {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(255, 107, 61, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 800;
  color: var(--accent-orange);
  flex-shrink: 0;
}
.step-content {
  flex: 1;
}
.step-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}
.step-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.step-link i {
  transition: transform 0.3s ease;
  font-size: 13px;
}
.step-link:hover i {
  transform: translateX(4px);
}

/* ===== 成果数据 ===== */
.results-section {
  background: var(--deep-ink);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.results-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(0, 230, 140, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.results-title {
  text-align: center;
  color: #fff;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 48px;
}
.results-grid {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}
.result-badge {
  width: 160px;
  height: 90px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--brand-green-1) 0%, var(--brand-teal) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--badge-shadow);
  position: relative;
  transition: transform 0.3s ease;
}
.result-badge:hover {
  transform: translateY(-6px) scale(1.02);
}
.result-badge:nth-child(2) {
  margin-top: 24px;
}
.result-badge:nth-child(3) {
  margin-top: -8px;
}
.result-badge:nth-child(4) {
  margin-top: 16px;
}
.result-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.result-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 2px;
}

/* ===== 客户证言 ===== */
.testimonial-wrap {
  position: relative;
}
.testimonial-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 16px;
  scrollbar-width: thin;
}
.testimonial-track::-webkit-scrollbar {
  height: 6px;
}
.testimonial-track::-webkit-scrollbar-track {
  background: rgba(14, 27, 23, 0.04);
  border-radius: 99px;
}
.testimonial-track::-webkit-scrollbar-thumb {
  background: rgba(0, 163, 161, 0.3);
  border-radius: 99px;
}
.testimonial-card {
  flex: 0 0 380px;
  scroll-snap-align: start;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border: 1px solid transparent;
  transition: all 0.3s ease;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-brand);
}
.testimonial-stars {
  color: var(--accent-orange);
  font-size: 15px;
  margin-bottom: 16px;
  letter-spacing: 3px;
}
.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.testimonial-tag {
  display: inline-block;
  margin-top: 2px;
  background: rgba(0, 163, 161, 0.1);
  color: var(--brand-teal);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 99px;
  font-weight: 500;
}

/* ===== 最新信息 ===== */
.latest-section {
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--section-space) 0;
}
.latest-list {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px 22px;
  transition: all 0.3s ease;
}
.news-card:hover {
  transform: translateX(6px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-brand);
  color: inherit;
}
.news-cat {
  background: rgba(0, 163, 161, 0.1);
  color: var(--brand-teal);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-summary {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}
.news-date {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.news-arrow {
  color: var(--brand-teal);
  font-size: 14px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.news-card:hover .news-arrow {
  transform: translateX(4px);
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-teal);
  margin-top: 24px;
  transition: gap 0.3s ease;
}
.view-all:hover {
  gap: 12px;
  color: var(--brand-teal);
}
.empty-state {
  background: var(--mist-white);
  border: 2px dashed rgba(14, 27, 23, 0.15);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}
.empty-state i {
  font-size: 40px;
  color: rgba(14, 27, 23, 0.2);
  display: block;
  margin-bottom: 12px;
}
.empty-state p {
  font-size: 15px;
  margin: 0;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--mist-white);
  padding: var(--section-space) 0;
}
.faq-header {
  text-align: center;
  margin-bottom: 48px;
}
.faq-header .section-title {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 8px;
}
.faq-header .section-subtitle {
  color: var(--text-secondary);
  font-size: 15px;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: 20px;
  padding: 24px 28px;
  box-shadow: var(--card-shadow);
  border: 2px solid transparent;
  transition: all 0.3s ease;
  height: fit-content;
}
.faq-item:hover {
  box-shadow: var(--card-shadow-hover);
}
.faq-item.active {
  border-color: var(--brand-teal);
  box-shadow: var(--card-shadow-hover);
}
.faq-question {
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 163, 161, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--brand-teal);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--brand-teal);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding-top: 14px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}
.faq-bottom {
  text-align: center;
  margin-top: 36px;
}
.btn-outline-brand {
  background: #fff;
  border: 2px solid rgba(14, 27, 23, 0.2);
  color: var(--text-primary);
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn-outline-brand:hover {
  border-color: var(--brand-teal);
  color: var(--brand-teal);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 163, 161, 0.15);
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0 96px;
  background: var(--mist-white);
}
.cta-card {
  background: var(--gradient-main);
  border-radius: 32px;
  padding: 56px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  box-shadow: 0 20px 50px rgba(0, 163, 161, 0.25);
}
.cta-card::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border: 24px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: rotate(8deg);
}
.cta-left {
  position: relative;
  z-index: 1;
}
.cta-title {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.3;
}
.cta-subtitle {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}
.cta-btn {
  background: #fff;
  color: var(--brand-teal);
  border: none;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.cta-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
  color: var(--brand-teal);
}
.cta-btn i {
  transition: transform 0.3s ease;
}
.cta-btn:hover i {
  transform: translateX(4px);
}
.cta-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 16px;
  position: relative;
  z-index: 1;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--deep-ink);
  color: #fff;
  padding: 56px 0 20px;
}
.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.6fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 40px;
}
.footer-brand-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand-title .logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-green-1);
}
.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}
.footer-links-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.9);
}
.footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links-list li {
  margin-bottom: 10px;
}
.footer-links-list a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.25s ease;
}
.footer-links-list a:hover {
  color: var(--brand-green-1);
}
.footer-status-box {
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  padding: 18px;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 8px;
}
.status-row:last-child {
  margin-bottom: 0;
}
.status-value {
  color: var(--brand-green-1);
  font-weight: 600;
}
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  :root {
    --section-space: 72px;
  }
  .shell-nav {
    width: 80px;
    padding: 28px 12px;
  }
  .main-area {
    margin-left: 80px;
  }
  .nav-logo-text {
    display: none;
  }
  .nav-item {
    justify-content: center;
    padding: 14px 0;
  }
  .nav-item span {
    display: none;
  }
  .nav-item i {
    font-size: 19px;
    width: auto;
  }
  .nav-cta {
    font-size: 0;
    padding: 12px;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav-cta i {
    font-size: 16px;
  }
  .nav-copyright {
    font-size: 10px;
  }
  .hero-container {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .hero-title {
    font-size: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}
@media (max-width: 767px) {
  .mobile-topbar {
    display: flex;
  }
  .shell-nav {
    width: 260px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    padding: 28px 20px;
  }
  .shell-nav.open {
    transform: translateX(0);
    box-shadow: 8px 0 30px rgba(0, 0, 0, 0.3);
  }
  .nav-logo-text {
    display: flex;
  }
  .nav-item {
    justify-content: flex-start;
    padding: 13px 16px;
  }
  .nav-item span {
    display: inline;
  }
  .nav-item i {
    width: 22px;
  }
  .nav-cta {
    font-size: 15px;
    width: auto;
    height: auto;
    border-radius: 999px;
    padding: 12px 16px;
    display: block;
  }
  .nav-cta i {
    display: none;
  }
  .nav-copyright {
    font-size: 12px;
  }
  .main-area {
    margin-left: 0;
    padding-top: 60px;
  }
  .container-custom,
  .hero-container {
    padding: 0 20px;
  }
  .hero-section {
    padding: 56px 0 56px;
  }
  .hero-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-badge-1,
  .hero-badge-2 {
    display: none;
  }
  .pain-grid {
    grid-template-columns: 1fr;
  }
  .pain-card-large {
    grid-row: auto;
  }
  .solution-section,
  .latest-section,
  .faq-section {
    padding: 56px 0;
  }
  .step-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
  }
  .results-grid {
    gap: 16px;
    padding: 0 20px;
  }
  .result-badge {
    width: 140px;
    height: 80px;
  }
  .result-num {
    font-size: 24px;
  }
  .testimonial-card {
    flex: 0 0 88%;
  }
  .news-card {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px;
  }
  .news-title {
    flex: 1;
    min-width: 60%;
  }
  .news-summary {
    display: none;
  }
  .news-date {
    font-size: 12px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .cta-section {
    padding: 56px 0;
  }
  .cta-card {
    padding: 32px 24px;
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-title {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 20px 32px;
  }
  .section-title {
    font-size: 26px;
  }
}
@media (max-width: 576px) {
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn-brand,
  .hero-actions .btn-ghost {
    width: 100%;
    justify-content: center;
  }
  .result-badge {
    width: calc(50% - 8px);
    height: 76px;
    margin-top: 0 !important;
  }
  .results-grid {
    gap: 12px;
  }
  .faq-item {
    padding: 18px 20px;
  }
  .faq-question {
    font-size: 15px;
  }
  .news-title {
    font-size: 15px;
  }
  .news-arrow {
    display: none;
  }
}

/* roulang page: category1 */
:root {
            --brand-green-1: #00E68C;
            --brand-green-2: #00A3A1;
            --accent-orange: #FF6B3D;
            --dark-base: #0E1B17;
            --light-bg: #F6F8F7;
            --text-main: #14211C;
            --text-sub: #42554C;
            --text-faded: #7A8C84;
            --border-color: rgba(16, 42, 32, 0.12);
            --success-green: #2EBD85;
            --warning-orange: #F5A623;
            --error-red: #E5484D;
            --card-radius: 24px;
            --card-radius-sm: 16px;
            --btn-radius: 999px;
            --shadow-card: 0 4px 20px rgba(14, 27, 23, 0.06);
            --shadow-hover: 0 12px 32px rgba(14, 27, 23, 0.13);
            --shadow-badge: 0 8px 24px rgba(0, 163, 161, 0.25);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", sans-serif;
            --section-space: 96px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            background: var(--light-bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--brand-green-2);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container-custom {
            max-width: 1280px;
            width: 100%;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* App Shell Layout */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .shell-nav {
            width: 260px;
            background: var(--dark-base);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 28px 20px;
            transition: width 0.3s ease;
        }
        .shell-nav .logo-area {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 8px 10px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #0E1B17;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: var(--shadow-badge);
        }
        .logo-text {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.2px;
        }
        .logo-sub {
            display: block;
            font-size: 10px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
            letter-spacing: 0.5px;
            font-weight: 400;
        }
        .nav-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 14px;
            border-radius: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            transition: background 0.25s ease, color 0.25s ease;
        }
        .nav-item i {
            width: 22px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }
        .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .nav-item:hover::before {
            content: "";
            position: absolute;
            left: -14px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--accent-orange);
            border-radius: 3px;
        }
        .nav-item.active {
            background: rgba(0, 230, 140, 0.16);
            color: #fff;
        }
        .nav-cta {
            margin-top: auto;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-cta-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 20px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            color: #0E1B17;
            font-size: 14px;
            font-weight: 600;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 163, 161, 0.35);
            color: #0E1B17;
        }
        .nav-copyright {
            margin-top: 16px;
            font-size: 11px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            line-height: 1.6;
        }

        .main-area {
            flex: 1;
            margin-left: 260px;
            min-width: 0;
        }

        /* Mobile Topbar */
        .mobile-topbar {
            display: none;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            padding: 14px 20px;
            align-items: center;
            justify-content: space-between;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
        }
        .mobile-topbar .mobile-logo {
            font-size: 16px;
            font-weight: 600;
            color: #0E1B17;
            line-height: 1.3;
        }
        .mobile-menu-btn {
            background: transparent;
            font-size: 22px;
            color: #0E1B17;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-base);
            z-index: 1045;
            padding: 28px 24px;
            overflow-y: auto;
            flex-direction: column;
        }
        .mobile-drawer .nav-cta {
            margin-top: 32px;
            padding-top: 20px;
            display: block;
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: var(--dark-base);
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url("/assets/images/backpic/back-1.png") center/cover no-repeat;
            opacity: 0.18;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 75% 30%, rgba(0, 230, 140, 0.15) 0%, rgba(14, 27, 23, 0.9) 70%);
        }
        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 230, 140, 0.15);
            border: 1px solid rgba(0, 230, 140, 0.3);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            color: var(--brand-green-1);
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 12px;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            max-width: 680px;
        }
        .page-hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--brand-green-1), #7CFFD0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.65);
            max-width: 580px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-custom-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            color: #0E1B17;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .btn-custom-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 163, 161, 0.4);
            color: #0E1B17;
        }
        .btn-custom-primary i {
            transition: transform 0.25s ease;
        }
        .btn-custom-primary:hover i {
            transform: translateX(4px);
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            transition: background 0.25s ease;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .hero-status-bar {
            margin-top: 56px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .status-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .status-item .dot {
            width: 8px;
            height: 8px;
            background: var(--brand-green-1);
            border-radius: 50%;
            animation: pulse 1.8s infinite;
        }
        .status-item .status-text {
            color: #fff;
            font-weight: 500;
        }
        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 230, 140, 0.6);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(0, 230, 140, 0);
            }
        }

        /* Section Base */
        .section-guide {
            padding: var(--section-space) 0;
        }
        .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-green-2);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
            display: block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 600px;
            margin-bottom: 48px;
        }

        /* Steps */
        .steps-section {
            padding: 96px 0;
        }
        .steps-wrapper {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            max-width: 760px;
            margin: 0 auto;
        }
        .steps-wrapper::before {
            content: "";
            position: absolute;
            left: 31px;
            top: 60px;
            bottom: 60px;
            width: 2px;
            background: linear-gradient(to bottom, var(--brand-green-1), rgba(0, 163, 161, 0.3));
        }
        .step-card {
            display: flex;
            gap: 28px;
            align-items: flex-start;
            margin-bottom: 40px;
            position: relative;
        }
        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            background: #fff;
            border: 2px solid var(--brand-green-2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            color: var(--accent-orange);
            font-family: var(--font-num);
            flex-shrink: 0;
            box-shadow: var(--shadow-card);
            z-index: 1;
        }
        .step-content {
            background: #fff;
            border-radius: var(--card-radius);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
            flex: 1;
            border: 1px solid var(--border-color);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .step-content:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .step-desc {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 14px;
        }
        .step-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--brand-green-2);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: gap 0.25s ease;
        }
        .step-link:hover {
            gap: 14px;
            color: var(--brand-green-2);
        }

        /* Features Alternating */
        .features-section {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--light-bg) 0%, #fff 100%);
        }
        .feature-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 88px;
        }
        .feature-row.reverse {
            flex-direction: row-reverse;
        }
        .feature-row:last-child {
            margin-bottom: 0;
        }
        .feature-media {
            flex: 1;
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }
        .feature-media img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .feature-media:hover img {
            transform: scale(1.03);
        }
        .feature-content {
            flex: 1;
        }
        .feature-tag {
            display: inline-block;
            padding: 5px 16px;
            background: rgba(0, 230, 140, 0.12);
            color: var(--brand-green-2);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .feature-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .feature-desc {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-green-2);
            font-weight: 500;
            font-size: 15px;
            transition: gap 0.25s ease;
        }
        .feature-link:hover {
            gap: 14px;
            color: var(--brand-green-2);
        }

        /* Info Cards */
        .info-list-section {
            padding: 96px 0;
        }
        .info-card-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .info-card {
            background: #fff;
            border-radius: var(--card-radius);
            padding: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(0, 163, 161, 0.3);
        }
        .info-card .badge-category {
            align-self: flex-start;
            padding: 4px 14px;
            background: rgba(0, 230, 140, 0.12);
            color: var(--brand-green-2);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .info-card .info-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .info-card .info-excerpt {
            font-size: 14px;
            color: var(--text-faded);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .info-card .info-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-faded);
        }
        .info-card .info-arrow {
            color: var(--brand-green-2);
            transition: transform 0.25s ease;
        }
        .info-card:hover .info-arrow {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-section {
            padding: 96px 0;
            background: var(--light-bg);
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item.active {
            border-color: var(--brand-green-2);
            box-shadow: 0 0 0 2px rgba(0, 163, 161, 0.1), var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 163, 161, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--brand-green-2);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-green-2);
            color: #fff;
        }
        .faq-answer {
            padding: 0 24px 24px 68px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-more {
            text-align: center;
            margin-top: 40px;
        }

        /* CTA */
        .cta-section {
            padding: 96px 0;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            border-radius: 32px;
            padding: 56px 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 14px solid rgba(255, 255, 255, 0.12);
            transform: rotate(8deg);
        }
        .cta-box::after {
            content: "";
            position: absolute;
            right: 40px;
            bottom: -60px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 10px solid rgba(255, 255, 255, 0.08);
        }
        .cta-left {
            flex: 1;
            min-width: 260px;
        }
        .cta-left h2 {
            font-size: 28px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 420px;
        }
        .cta-btn-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--brand-green-2);
            font-weight: 600;
            padding: 16px 36px;
            border-radius: 999px;
            font-size: 15px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            white-space: nowrap;
            position: relative;
            z-index: 2;
        }
        .cta-btn-white:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
            color: var(--brand-green-2);
        }

        /* Footer */
        .site-footer {
            background: var(--dark-base);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 28px;
        }
        .footer-grid {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
        }
        .footer-brand-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--brand-green-1);
            box-shadow: 0 0 12px rgba(0, 230, 140, 0.6);
            display: inline-block;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-links-title {
            font-size: 15px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-links-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links-list a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.25s ease;
        }
        .footer-links-list a:hover {
            color: var(--brand-green-1);
        }
        .footer-status-box {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 18px 20px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .status-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .status-row:last-child {
            border-bottom: none;
        }
        .status-value {
            color: #fff;
            font-weight: 500;
        }
        .footer-bottom {
            max-width: 1280px;
            margin: 48px auto 0;
            padding: 24px 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            :root {
                --section-space: 72px;
            }
            .shell-nav {
                width: 80px;
                padding: 20px 12px;
            }
            .shell-nav .logo-area {
                justify-content: center;
                padding: 8px 0 20px;
            }
            .logo-text,
            .logo-sub {
                display: none;
            }
            .nav-item {
                justify-content: center;
                padding: 14px 0;
            }
            .nav-item span {
                display: none;
            }
            .nav-cta-btn span {
                display: none;
            }
            .nav-cta-btn {
                padding: 14px;
                font-size: 16px;
            }
            .nav-copyright {
                display: none;
            }
            .main-area {
                margin-left: 80px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .feature-row,
            .feature-row.reverse {
                flex-direction: column;
                gap: 40px;
            }
            .info-card-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-space: 56px;
            }
            .app-shell {
                display: block;
            }
            .shell-nav {
                display: none;
            }
            .main-area {
                margin-left: 0;
                padding-top: 68px;
            }
            .mobile-topbar {
                display: flex;
            }
            .mobile-drawer.open {
                display: flex;
            }
            .container-custom {
                padding: 0 20px;
            }
            .page-hero .hero-inner {
                padding: 0 20px;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-subtitle {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-custom-primary,
            .btn-ghost-light {
                justify-content: center;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
                margin-bottom: 32px;
            }
            .step-card {
                flex-direction: column;
                gap: 16px;
            }
            .steps-wrapper::before {
                left: 31px;
                top: 50px;
                bottom: 50px;
            }
            .step-content {
                padding: 22px;
            }
            .feature-row {
                gap: 32px;
                margin-bottom: 56px;
            }
            .feature-title {
                font-size: 22px;
            }
            .info-card-list {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 40px 28px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-btn-white {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 0 20px;
            }
            .footer-bottom {
                padding: 24px 20px 0;
            }
            .faq-question {
                font-size: 15px;
                padding: 20px;
            }
            .faq-answer {
                padding: 0 20px 20px;
            }
            .hero-status-bar {
                gap: 16px;
                margin-top: 40px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .info-card {
                padding: 20px;
            }
        }

/* roulang page: article */
:root {
            --brand-green-1: #00E68C;
            --brand-green-2: #00A3A1;
            --brand-green-3: #00B894;
            --accent-orange: #FF6B3D;
            --dark-base: #0E1B17;
            --dark-base-2: #14211C;
            --light-base: #F6F8F7;
            --text-main: #14211C;
            --text-sub: #42554C;
            --text-muted: #7A8C84;
            --border-color: rgba(16, 42, 32, 0.12);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 4px 20px rgba(14, 27, 23, 0.06);
            --shadow-hover: 0 12px 32px rgba(14, 27, 23, 0.13);
            --shadow-badge: 0 8px 24px rgba(0, 163, 161, 0.25);
            --sidebar-w: 260px;
            --sidebar-w-md: 80px;
            --section-space: 96px;
            --max-width: 1280px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--light-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: 8px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }
        a:hover {
            color: var(--brand-green-2);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }
        .btn-brand-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
        }
        .btn-brand-primary:hover {
            filter: brightness(.94);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 163, 161, .3);
            color: #fff;
        }
        .btn-brand-primary:active {
            transform: scale(.97);
        }
        .btn-outline-dark-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--text-main);
            border: 2px solid rgba(14, 27, 23, .2);
            border-radius: 999px;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 500;
            transition: border-color .2s, color .2s, background .2s, transform .2s;
        }
        .btn-outline-dark-custom:hover {
            border-color: var(--brand-green-2);
            color: var(--brand-green-2);
            transform: translateY(-2px);
        }
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .15);
        }
        .topbar-toggle {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 20px;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background .2s;
        }
        .topbar-toggle:hover {
            background: rgba(255, 255, 255, .15);
        }
        .topbar-brand {
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .topbar-login-btn {
            color: var(--dark-base);
            background: rgba(255, 255, 255, .92);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 14px;
            font-weight: 600;
            transition: background .2s, transform .2s;
        }
        .topbar-login-btn:hover {
            background: #fff;
            transform: scale(1.04);
            color: var(--dark-base);
        }
        .shell-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-w);
            background: var(--dark-base);
            display: flex;
            flex-direction: column;
            z-index: 1040;
            padding: 28px 16px 20px;
            transition: transform .3s ease, width .3s ease;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 20px;
        }
        .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(0, 163, 161, .3);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 0;
        }
        .brand-text strong {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            white-space: nowrap;
        }
        .brand-text small {
            color: rgba(255, 255, 255, .5);
            font-size: 12px;
            margin-top: 2px;
        }
        .nav-list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0;
            margin: 0;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 16px;
            color: rgba(255, 255, 255, .68);
            border-radius: 14px;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: background .2s, color .2s;
        }
        .nav-item i {
            width: 22px;
            text-align: center;
            font-size: 17px;
            flex-shrink: 0;
        }
        .nav-item:hover {
            background: rgba(255, 255, 255, .05);
            color: #fff;
        }
        .nav-item:hover::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--accent-orange);
            border-radius: 0 3px 3px 0;
        }
        .nav-item.active {
            background: rgba(0, 230, 140, .16);
            color: #fff;
            font-weight: 600;
        }
        .nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--accent-orange);
            border-radius: 0 3px 3px 0;
        }
        .nav-footer {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-green-1), var(--brand-green-2));
            color: #fff;
            border-radius: 999px;
            padding: 12px 20px;
            font-size: 15px;
            font-weight: 600;
            transition: transform .2s, box-shadow .2s, filter .2s;
        }
        .nav-cta:hover {
            filter: brightness(.94);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 163, 161, .35);
            color: #fff;
        }
        .nav-footer p {
            color: rgba(255, 255, 255, .3);
            font-size: 12px;
            text-align: center;
            margin-top: 14px;
            margin-bottom: 0;
        }
        .nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(14, 27, 23, .6);
            z-index: 1035;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }
        .nav-overlay.show {
            opacity: 1;
            visibility: visible;
        }
        .main-area {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--light-base);
        }
        .page-wrapper {
            flex: 1;
            max-width: calc(var(--max-width) - var(--sidebar-w));
            width: 100%;
            padding: 32px 40px 0;
            margin: 0 auto;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 28px;
            padding-top: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color .2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--brand-green-2);
        }
        .breadcrumb-sep {
            color: rgba(16, 42, 32, .3);
        }
        .breadcrumb-current {
            color: var(--text-sub);
            font-weight: 500;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-banner {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-size: cover;
            background-position: center;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            margin-bottom: 40px;
            box-shadow: var(--shadow-card);
        }
        .article-banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(14, 27, 23, .88), rgba(14, 27, 23, .35) 60%, rgba(0, 163, 161, .2));
        }
        .article-banner-content {
            position: relative;
            z-index: 2;
            padding: 40px;
            width: 100%;
        }
        .article-cat-badge {
            display: inline-block;
            background: rgba(0, 230, 140, .2);
            border: 1px solid rgba(0, 230, 140, .4);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            padding: 4px 14px;
            margin-bottom: 14px;
            backdrop-filter: blur(4px);
        }
        .article-banner-content h1 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            max-width: 680px;
        }
        .article-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--brand-green-1);
        }
        .article-main {
            max-width: 820px;
            margin: 0 auto 48px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
        }
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-main);
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 600;
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--brand-green-2);
            line-height: 1.4;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content blockquote {
            background: rgba(0, 230, 140, .08);
            border-left: 4px solid var(--brand-green-2);
            border-radius: 12px;
            padding: 18px 24px;
            margin: 24px 0;
            color: var(--text-sub);
            font-size: 16px;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
        }
        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .article-content table th {
            background: var(--light-base);
            font-weight: 600;
            text-align: left;
        }
        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
        }
        .article-content pre {
            background: var(--dark-base);
            color: #dcebe5;
            padding: 20px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }
        .article-content code {
            background: rgba(0, 163, 161, .1);
            color: var(--brand-green-2);
            padding: 2px 6px;
            border-radius: 6px;
            font-size: 14px;
        }
        .article-content a {
            color: var(--brand-green-2);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--brand-green-1);
        }
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-icon {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .not-found-box h2 {
            font-size: 26px;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .not-found-box p {
            color: var(--text-sub);
            margin-bottom: 24px;
        }
        .article-pagination {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 820px;
            margin: 0 auto 56px;
        }
        .page-btn {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            transition: box-shadow .2s, border-color .2s, transform .2s;
        }
        .page-btn:hover {
            border-color: var(--brand-green-2);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            color: inherit;
        }
        .page-btn i {
            color: var(--brand-green-2);
            font-size: 18px;
        }
        .page-btn small {
            display: block;
            color: var(--text-muted);
            font-size: 12px;
            margin-bottom: 2px;
        }
        .page-btn span {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }
        .page-btn.text-end {
            justify-content: flex-end;
            text-align: right;
        }
        .related-section {
            max-width: 820px;
            margin: 0 auto 72px;
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .section-head h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
        }
        .section-more {
            font-size: 14px;
            color: var(--text-sub);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s, gap .2s;
        }
        .section-more:hover {
            color: var(--brand-green-2);
            gap: 10px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 14px;
            box-shadow: var(--shadow-card);
            transition: box-shadow .2s, transform .2s, border-color .2s;
            border: 1px solid transparent;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(0, 163, 161, .3);
            color: inherit;
        }
        .related-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 230, 140, .25), rgba(0, 163, 161, .2));
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .related-info {
            padding: 14px 2px 4px;
        }
        .related-info h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 44px;
        }
        .related-date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .site-footer {
            background: var(--dark-base);
            color: rgba(255, 255, 255, .7);
            padding: 56px 40px 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            max-width: calc(var(--max-width) - var(--sidebar-w));
            margin: 0 auto;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand-title {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--brand-green-1);
            display: inline-block;
            box-shadow: 0 0 12px rgba(0, 230, 140, .6);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .55);
            max-width: 340px;
        }
        .footer-links-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links-list a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }
        .footer-links-list a:hover {
            color: var(--brand-green-1);
            padding-left: 4px;
        }
        .footer-status-box {
            background: rgba(255, 255, 255, .04);
            border-radius: 14px;
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .status-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
        }
        .status-value {
            color: var(--brand-green-1);
            font-weight: 600;
            font-size: 13px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            max-width: calc(var(--max-width) - var(--sidebar-w));
            margin: 0 auto;
        }
        .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        @media (max-width: 991.98px) {
            .shell-nav {
                width: var(--sidebar-w-md);
                padding: 20px 10px;
            }
            .nav-brand {
                justify-content: center;
                padding: 0 0 18px;
                margin-bottom: 14px;
            }
            .brand-text {
                display: none;
            }
            .brand-icon {
                width: 46px;
                height: 46px;
            }
            .nav-item {
                justify-content: center;
                padding: 12px;
                gap: 0;
            }
            .nav-item span {
                display: none;
            }
            .nav-item i {
                font-size: 19px;
            }
            .nav-cta {
                padding: 10px;
                font-size: 0;
            }
            .nav-cta i {
                font-size: 16px;
            }
            .nav-footer p {
                font-size: 10px;
            }
            .main-area {
                margin-left: var(--sidebar-w-md);
            }
            .page-wrapper {
                padding: 24px 24px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-main {
                padding: 36px;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 767.98px) {
            .mobile-topbar {
                display: flex;
            }
            .shell-nav {
                width: var(--sidebar-w);
                padding: 24px 16px;
                transform: translateX(-100%);
                box-shadow: 0 0 40px rgba(0, 0, 0, .3);
            }
            .shell-nav.open {
                transform: translateX(0);
            }
            .shell-nav .nav-brand {
                justify-content: flex-start;
                padding: 0 6px 24px;
                margin-bottom: 20px;
            }
            .brand-text {
                display: flex;
            }
            .nav-item {
                justify-content: flex-start;
                gap: 14px;
                padding: 13px 16px;
            }
            .nav-item span {
                display: inline;
            }
            .nav-item i {
                font-size: 17px;
            }
            .nav-cta {
                padding: 12px 20px;
                font-size: 15px;
                gap: 8px;
            }
            .nav-cta i {
                font-size: 15px;
            }
            .nav-footer p {
                font-size: 12px;
            }
            .main-area {
                margin-left: 0;
                padding-top: 60px;
            }
            .page-wrapper {
                padding: 16px 16px 0;
            }
            .breadcrumb-nav {
                margin-bottom: 18px;
                font-size: 13px;
            }
            .article-banner {
                min-height: 200px;
                margin-bottom: 24px;
                border-radius: 18px;
            }
            .article-banner-content {
                padding: 24px;
            }
            .article-banner-content h1 {
                font-size: 24px;
            }
            .article-main {
                padding: 24px 20px;
                margin-bottom: 32px;
                border-radius: 18px;
            }
            .article-content {
                font-size: 16px;
            }
            .article-content h2 {
                font-size: 20px;
            }
            .article-pagination {
                grid-template-columns: 1fr;
                gap: 12px;
                margin-bottom: 40px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-head h2 {
                font-size: 20px;
            }
            .site-footer {
                padding: 40px 20px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .article-banner-content h1 {
                font-size: 20px;
            }
            .article-meta {
                font-size: 13px;
                gap: 10px;
            }
            .article-main {
                padding: 18px 16px;
            }
            .breadcrumb-current {
                max-width: 160px;
            }
        }

/* roulang page: category2 */
:root {
      --brand-green-1: #00E68C;
      --brand-green-2: #00A3A1;
      --brand-gradient: linear-gradient(135deg, #00E68C 0%, #00A3A1 100%);
      --accent-orange: #FF6B3D;
      --dark-base: #0E1B17;
      --light-base: #F6F8F7;
      --text-main: #14211C;
      --text-sub: #42554C;
      --text-weak: #7A8C84;
      --border-color: rgba(16, 42, 32, 0.12);
      --success-color: #2EBD85;
      --warning-color: #F5A623;
      --danger-color: #E5484D;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --radius-pill: 999px;
      --shadow-card: 0 4px 20px rgba(14, 27, 23, 0.06);
      --shadow-hover: 0 12px 32px rgba(14, 27, 23, 0.13);
      --shadow-badge: 0 8px 24px rgba(0, 163, 161, 0.25);
      --section-space: 88px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: Inter, "DIN Alternate", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-main);
      background: var(--light-base);
      display: flex;
      align-items: flex-start;
      -webkit-font-smoothing: antialiased;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      font-weight: 600;
      line-height: 1.25;
      color: var(--text-main);
      margin-top: 0;
      margin-bottom: 0.5em;
    }

    p {
      margin-top: 0;
      margin-bottom: 1rem;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
    }

    a:hover {
      color: var(--brand-green-2);
    }

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

    ul {
      padding-left: 0;
      list-style: none;
      margin-bottom: 0;
    }

    button,
    input {
      font-family: inherit;
    }

    ::selection {
      background: rgba(0, 230, 140, 0.25);
    }

    .container {
      max-width: 1240px;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ============ 按钮 ============ */
    .btn {
      border-radius: var(--radius-pill);
      font-weight: 600;
      padding: 12px 28px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: none;
      transition: all 0.3s ease;
      font-size: 15px;
    }

    .btn-brand {
      background: var(--brand-gradient);
      color: #fff;
      box-shadow: 0 6px 20px rgba(0, 163, 161, 0.3);
    }

    .btn-brand i {
      transition: transform 0.3s ease;
    }

    .btn-brand:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0, 163, 161, 0.42);
    }

    .btn-brand:hover i {
      transform: translateX(4px);
    }

    .btn-brand:active {
      transform: scale(0.97);
    }

    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.4);
      color: #fff;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.7);
    }

    .btn-outline {
      background: #fff;
      border: 2px solid rgba(14, 27, 23, 0.18);
      color: var(--text-main);
    }

    .btn-outline:hover {
      border-color: var(--brand-green-2);
      color: var(--brand-green-2);
      transform: translateY(-2px);
    }

    .btn-light-solid {
      background: #fff;
      color: var(--brand-green-2);
      box-shadow: 0 8px 24px rgba(14, 27, 23, 0.12);
    }

    .btn-light-solid:hover {
      color: var(--brand-green-2);
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(14, 27, 23, 0.18);
    }

    /* ============ 导航 ============ */
    .shell-nav {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 260px;
      background: var(--dark-base);
      padding: 28px 20px 20px;
      display: flex;
      flex-direction: column;
      z-index: 1030;
      transition: width 0.3s ease;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 4px 6px 22px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 24px;
    }

    .logo-icon {
      width: 48px;
      height: 48px;
      flex: 0 0 48px;
      border-radius: 16px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      box-shadow: 0 8px 24px rgba(0, 163, 161, 0.35);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.3;
      min-width: 0;
    }

    .brand-text strong {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      white-space: nowrap;
    }

    .brand-badge {
      color: rgba(255, 255, 255, 0.55);
      font-size: 12px;
      margin-top: 2px;
    }

    .nav-list {
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 14px;
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
      font-weight: 400;
      padding: 12px 16px;
      border-radius: 14px;
      position: relative;
      transition: all 0.25s ease;
      border-left: 3px solid transparent;
    }

    .nav-item i {
      width: 22px;
      text-align: center;
      font-size: 16px;
    }

    .nav-item:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
      border-left-color: var(--accent-orange);
    }

    .nav-item.active {
      color: #fff;
      background: rgba(0, 230, 140, 0.16);
      border-left-color: var(--accent-orange);
    }

    .nav-cta {
      margin-top: 16px;
    }

    .btn-nav-cta {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      background: var(--brand-gradient);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 12px 16px;
      border-radius: var(--radius-pill);
      transition: all 0.3s ease;
      box-shadow: 0 6px 18px rgba(0, 163, 161, 0.28);
    }

    .btn-nav-cta:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(0, 163, 161, 0.4);
    }

    .nav-footer {
      margin-top: 20px;
      text-align: center;
      color: rgba(255, 255, 255, 0.35);
      font-size: 12px;
    }

    .mobile-menu-btn {
      display: none;
      background: rgba(0, 0, 0, 0.15);
      border: none;
      color: #fff;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      font-size: 16px;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }

    /* ============ 主区域 ============ */
    .main-area {
      margin-left: 260px;
      width: calc(100% - 260px);
      min-height: 100vh;
      background: var(--light-base);
      display: flex;
      flex-direction: column;
    }

    /* ============ 分类 Hero ============ */
    .category-hero {
      position: relative;
      background: var(--dark-base);
      padding: 88px 0 72px;
      overflow: hidden;
    }

    .category-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(0, 230, 140, 0.28) 0%, rgba(0, 163, 161, 0.14) 100%);
      z-index: 1;
    }

    .hero-bg-image {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      opacity: 0.28;
      mix-blend-mode: luminosity;
      z-index: 0;
    }

    .category-hero .container {
      position: relative;
      z-index: 2;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: rgba(255, 255, 255, 0.85);
      font-size: 13px;
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      margin-bottom: 20px;
    }

    .hero-tag i {
      color: var(--brand-green-1);
      font-size: 12px;
    }

    .category-hero h1 {
      color: #fff;
      font-size: 48px;
      font-weight: 700;
      line-height: 1.18;
      margin-bottom: 16px;
      max-width: 640px;
    }

    .category-hero h1 .highlight-green {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      color: rgba(255, 255, 255, 0.72);
      font-size: 16px;
      max-width: 540px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 32px;
    }

    .hero-points {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .hero-point {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(255, 255, 255, 0.75);
      font-size: 13px;
    }

    .hero-point i {
      color: var(--brand-green-1);
      font-size: 14px;
    }

    .hero-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    }

    .hero-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      aspect-ratio: 4 / 3;
      background: linear-gradient(135deg, #E8EDEA, #00A3A1);
    }

    .hero-visual-badge {
      position: absolute;
      left: 20px;
      bottom: 20px;
      background: rgba(14, 27, 23, 0.8);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 13px;
      padding: 8px 16px;
      border-radius: var(--radius-pill);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-visual-badge i {
      color: var(--brand-green-1);
    }

    /* ============ 分类横幅卡 ============ */
    .category-banner {
      padding: var(--section-space) 0;
      background: var(--light-base);
    }

    .banner-card {
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 48px;
      overflow: hidden;
      position: relative;
      transition: box-shadow 0.3s ease;
    }

    .banner-card:hover {
      box-shadow: var(--shadow-hover);
    }

    .banner-card .sec-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 163, 161, 0.1);
      color: var(--brand-green-2);
      font-size: 13px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
    }

    .banner-card h2 {
      font-size: 30px;
      font-weight: 600;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .banner-card .banner-desc {
      color: var(--text-sub);
      font-size: 15px;
      max-width: 580px;
    }

    .banner-points {
      margin-top: 22px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .banner-point {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-main);
      font-size: 14px;
      font-weight: 500;
    }

    .banner-point i {
      width: 28px;
      height: 28px;
      flex: 0 0 28px;
      background: rgba(0, 230, 140, 0.14);
      color: var(--brand-green-2);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
    }

    .banner-img-wrap {
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 12px 30px rgba(14, 27, 23, 0.12);
    }

    .banner-img-wrap img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      background: linear-gradient(135deg, #E8EDEA, #00A3A1);
    }

    /* ============ 交替图文块 ============ */
    .security-features {
      padding: var(--section-space) 0;
      background: #fff;
    }

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

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand-green-2);
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.04em;
      margin-bottom: 10px;
    }

    .section-eyebrow::before {
      content: '';
      width: 6px;
      height: 6px;
      background: var(--accent-orange);
      border-radius: 50%;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .section-head .section-intro {
      color: var(--text-sub);
      font-size: 15px;
      max-width: 640px;
    }

    .feature-block {
      display: flex;
      align-items: center;
      gap: 56px;
      margin-bottom: 72px;
    }

    .feature-block:last-child {
      margin-bottom: 0;
    }

    .feature-img {
      width: 50%;
      flex: 0 0 50%;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 12px 32px rgba(14, 27, 23, 0.1);
    }

    .feature-img img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      background: linear-gradient(135deg, #E8EDEA, #00A3A1);
    }

    .feature-body {
      flex: 1;
    }

    .feature-num {
      font-family: var(--font-num);
      font-size: 40px;
      font-weight: 800;
      line-height: 1;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      display: inline-block;
      margin-bottom: 12px;
    }

    .feature-body h3 {
      font-size: 22px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .feature-body p {
      color: var(--text-sub);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .feature-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand-green-2);
      font-size: 14px;
      font-weight: 600;
    }

    .feature-link i {
      transition: transform 0.3s ease;
    }

    .feature-link:hover {
      color: var(--brand-green-2);
    }

    .feature-link:hover i {
      transform: translateX(4px);
    }

    .feature-block.reverse {
      flex-direction: row-reverse;
    }

    /* ============ 资讯卡片 ============ */
    .related-info {
      padding: var(--section-space) 0;
      background: var(--light-base);
    }

    .section-head-row {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 36px;
    }

    .section-head-row h2 {
      font-size: 32px;
      margin-bottom: 4px;
    }

    .section-head-row .section-intro {
      color: var(--text-sub);
      font-size: 15px;
    }

    .head-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand-green-2);
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
    }

    .head-link i {
      transition: transform 0.3s ease;
    }

    .head-link:hover i {
      transform: translateX(4px);
    }

    .info-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
      border: 1px solid transparent;
    }

    .info-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 163, 161, 0.3);
    }

    .info-card .badge-soft {
      align-self: flex-start;
      background: rgba(0, 163, 161, 0.1);
      color: var(--brand-green-2);
      font-size: 12px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
    }

    .info-card h3 {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.45;
      margin-bottom: 10px;
    }

    .info-card p {
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 16px;
      flex: 1;
    }

    .info-card .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--text-weak);
      font-size: 13px;
    }

    .info-card .card-meta i {
      color: var(--brand-green-2);
      font-size: 14px;
      transition: transform 0.3s ease;
    }

    .info-card:hover .card-meta i {
      transform: translateX(4px);
    }

    .info-card-layout {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    /* ============ FAQ ============ */
    .faq-section {
      padding: var(--section-space) 0;
      background: #fff;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .faq-item {
      background: var(--light-base);
      border: 2px solid transparent;
      border-radius: 20px;
      padding: 24px 28px;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .faq-item:hover {
      background: #fff;
      box-shadow: var(--shadow-card);
    }

    .faq-item.active {
      background: #fff;
      border-color: var(--brand-green-2);
      box-shadow: var(--shadow-card);
    }

    .faq-q {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
    }

    .faq-icon {
      width: 32px;
      height: 32px;
      flex: 0 0 32px;
      border-radius: 50%;
      background: rgba(255, 107, 61, 0.12);
      color: var(--accent-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-a {
      display: none;
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.75;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-a {
      display: block;
    }

    .faq-bottom {
      text-align: center;
      margin-top: 40px;
    }

    /* ============ CTA ============ */
    .cta-section {
      padding: 0 0 var(--section-space);
      background: var(--light-base);
    }

    .cta-card {
      background: var(--brand-gradient);
      border-radius: 32px;
      padding: 60px 64px;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 36px;
    }

    .cta-card::before {
      content: '';
      position: absolute;
      right: -70px;
      top: -70px;
      width: 280px;
      height: 280px;
      border-radius: 50%;
      border: 2px solid rgba(255, 255, 255, 0.25);
      transform: rotate(8deg);
    }

    .cta-card::after {
      content: '';
      position: absolute;
      right: 20px;
      top: 20px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.15);
      transform: rotate(8deg);
    }

    .cta-content {
      position: relative;
      z-index: 1;
    }

    .cta-content h2 {
      color: #fff;
      font-size: 28px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .cta-content p {
      color: rgba(255, 255, 255, 0.9);
      font-size: 15px;
      margin-bottom: 6px;
      max-width: 520px;
    }

    .cta-content .cta-note {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.75);
      margin-top: 8px;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    /* ============ 页脚 ============ */
    .site-footer {
      background: var(--dark-base);
      color: rgba(255, 255, 255, 0.65);
      padding: 56px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 24px;
    }

    .footer-brand-title {
      color: #fff;
      font-size: 18px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .logo-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--brand-green-1);
      box-shadow: 0 0 12px rgba(0, 230, 140, 0.6);
      display: inline-block;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.55);
      max-width: 340px;
    }

    .footer-links-title {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .footer-links-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .footer-links-list a::before {
      content: '';
      width: 4px;
      height: 4px;
      background: var(--brand-green-1);
      border-radius: 50%;
      opacity: 0.6;
    }

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

    .footer-status-box {
      background: rgba(255, 255, 255, 0.05);
      border-radius: 16px;
      padding: 16px 18px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .status-row {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
    }

    .status-value {
      color: #fff;
      font-weight: 600;
      font-family: var(--font-num);
    }

    .footer-bottom {
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1199.98px) {
      .cta-card {
        padding: 48px;
      }
    }

    @media (max-width: 991.98px) {
      .shell-nav {
        width: 80px;
        padding: 20px 12px;
      }

      .shell-nav .brand-text,
      .shell-nav .nav-item span,
      .shell-nav .nav-cta,
      .shell-nav .nav-footer {
        display: none;
      }

      .nav-brand {
        justify-content: center;
        padding: 0 0 18px;
        flex-direction: column;
        gap: 8px;
      }

      .logo-icon {
        width: 44px;
        height: 44px;
        flex-basis: 44px;
        font-size: 18px;
      }

      .nav-item {
        justify-content: center;
        padding: 14px 0;
      }

      .nav-item i {
        width: auto;
      }

      .main-area {
        margin-left: 80px;
        width: calc(100% - 80px);
      }

      .feature-block,
      .feature-block.reverse {
        flex-direction: column;
        gap: 28px;
      }

      .feature-img {
        width: 100%;
        flex-basis: auto;
      }

      .info-card-layout {
        grid-template-columns: 1fr 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 767.98px) {
      body {
        display: block;
      }

      .shell-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: auto;
        width: 100%;
        height: 62px;
        padding: 0 16px;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        background: var(--brand-gradient);
        box-shadow: 0 4px 16px rgba(14, 27, 23, 0.18);
      }

      .shell-nav .nav-brand {
        border-bottom: none;
        margin-bottom: 0;
        padding: 0;
        flex-direction: row;
        gap: 10px;
        justify-content: flex-start;
      }

      .shell-nav .brand-text {
        display: flex;
      }

      .shell-nav .brand-text strong {
        font-size: 14px;
      }

      .shell-nav .brand-badge {
        display: none;
      }

      .shell-nav .logo-icon {
        width: 36px;
        height: 36px;
        flex-basis: 36px;
        border-radius: 12px;
        font-size: 15px;
      }

      .mobile-menu-btn {
        display: inline-flex;
      }

      .nav-list {
        position: fixed;
        top: 62px;
        left: 0;
        right: 0;
        background: var(--dark-base);
        padding: 12px 16px 20px;
        margin: 0;
        border-radius: 0 0 20px 20px;
        box-shadow: 0 20px 40px rgba(14, 27, 23, 0.25);
        display: none;
        z-index: 1040;
      }

      .nav-list.open {
        display: flex;
      }

      .nav-item {
        padding: 14px 18px;
        justify-content: flex-start;
      }

      .nav-item i {
        width: 22px;
      }

      .nav-item span {
        display: inline;
      }

      .nav-cta {
        display: none;
      }

      .nav-footer {
        display: none;
      }

      .main-area {
        margin-left: 0;
        width: 100%;
        padding-top: 62px;
      }

      .category-hero {
        padding: 56px 0 48px;
      }

      .category-hero h1 {
        font-size: 32px;
      }

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

      .hero-actions {
        gap: 10px;
      }

      .hero-actions .btn {
        padding: 10px 20px;
        font-size: 14px;
      }

      .banner-card {
        padding: 28px;
      }

      .banner-card h2 {
        font-size: 24px;
      }

      .section-head h2,
      .section-head-row h2 {
        font-size: 24px;
      }

      .feature-num {
        font-size: 32px;
      }

      .info-card-layout {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .faq-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .faq-item {
        padding: 20px;
      }

      .cta-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 36px 28px;
        border-radius: 24px;
      }

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

      .cta-actions .btn {
        padding: 10px 20px;
        font-size: 14px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .section-head-row {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .hero-points {
        flex-direction: column;
        gap: 10px;
      }

      .banner-card {
        padding: 22px;
      }

      .banner-points {
        gap: 10px;
      }

      .cta-actions {
        flex-direction: column;
        width: 100%;
      }

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