/* roulang page: index */
:root {
  --primary: #1a5cff;
  --primary-dark: #0d3fbf;
  --primary-light: #e8efff;
  --secondary: #00c2b8;
  --secondary-light: #e0faf7;
  --accent: #ff7a59;
  --accent-light: #fff2ec;
  --dark: #0e1525;
  --dark-2: #151f36;
  --text: #1e293b;
  --muted: #64748b;
  --bg: #f5f8fc;
  --card: #ffffff;
  --border: #e2e8f0;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 14px rgba(15, 23, 42, .06);
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 50px rgba(15, 23, 42, .14);
  --container: 1200px;
  --transition: .25s ease;
  --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

input, button, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head .eyebrow {
  display: inline-block;
  padding: 7px 18px;
  border-radius: 50px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--dark);
  letter-spacing: -0.02em;
}

.section-head p {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.8;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, .8);
  box-shadow: 0 1px 8px rgba(15, 23, 42, .03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
  flex-wrap: wrap;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(26, 92, 255, .28);
}

.logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.logo-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 3px 10px;
  border-radius: 30px;
  background: var(--secondary-light);
  color: #00877f;
  font-size: 11px;
  font-weight: 700;
  vertical-align: middle;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #334155;
  transition: var(--transition);
  position: relative;
}

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

.main-nav a.active {
  color: var(--primary-dark);
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

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

.nav-search {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-search input {
  width: 200px;
  height: 40px;
  padding: 0 14px 0 40px;
  border: 1px solid var(--border);
  border-radius: 40px;
  background: #f8fafc;
  transition: var(--transition);
  font-size: 14px;
}

.nav-search input:focus {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(26, 92, 255, .12);
}

.nav-search i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 14px;
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(15, 23, 42, .06);
}

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

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 24px rgba(26, 92, 255, .32);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(26, 92, 255, .42);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #ff9a5a);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 122, 89, .32);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(255, 122, 89, .44);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 12, 30, .88) 0%, rgba(8, 12, 30, .72) 45%, rgba(8, 12, 30, .32) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(transparent, rgba(245, 248, 252, .9));
  pointer-events: none;
}

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

.hero-content {
  max-width: 760px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 50px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .16);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  backdrop-filter: blur(8px);
  margin-bottom: 24px;
}

.hero-eyebrow i {
  color: #ffd166;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(120deg, #ffffff 0%, #cfe0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .85);
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 620px;
  margin-top: 12px;
}

.hero-stat {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  padding: 20px 18px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.hero-stat:hover {
  background: rgba(255, 255, 255, .14);
  transform: translateY(-4px);
}

.hero-stat .num {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  display: block;
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
  margin-top: 6px;
}

.features {
  background: var(--bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-6px);
  border-color: rgba(26, 92, 255, .2);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 22px;
  margin-bottom: 20px;
}

.feature-card:nth-child(2) .feature-icon {
  background: var(--secondary-light);
  color: #00877f;
}

.feature-card:nth-child(3) .feature-icon {
  background: var(--accent-light);
  color: #e8593f;
}

.feature-card:nth-child(4) .feature-icon {
  background: #f1f5ff;
  color: #4f46e5;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--dark);
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.categories {
  background: #fff;
}

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

.category-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.category-cover {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.category-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.category-card:hover .category-cover img {
  transform: scale(1.06);
}

.category-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(14, 21, 37, .55), transparent 60%);
}

.category-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 6px 14px;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .2);
  backdrop-filter: blur(8px);
  border-radius: 30px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.category-body {
  padding: 28px;
}

.category-body h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}

.category-body p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--primary);
  font-size: 15px;
}

.category-link i {
  transition: transform var(--transition);
}

.category-link:hover i {
  transform: translateX(5px);
}

.latest {
  background: var(--bg);
}

.cms-list {
  max-width: 820px;
  margin: 0 auto;
}

.cms-item {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.cms-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
  border-color: rgba(26, 92, 255, .2);
}

.cms-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
}

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

.cms-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}

.cms-category {
  padding: 4px 12px;
  border-radius: 30px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
}

.cms-date {
  font-size: 13px;
  color: var(--muted);
}

.cms-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.45;
}

.cms-body h3 a:hover {
  color: var(--primary);
}

.cms-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cms-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.cms-more i {
  font-size: 12px;
}

.cms-empty {
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 16px;
  box-shadow: var(--shadow-sm);
}

.steps {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.steps::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(26, 92, 255, .4), transparent 70%);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.steps-text .eyebrow {
  display: inline-block;
  padding: 8px 18px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 40px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.steps-text h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  margin-bottom: 18px;
}

.steps-text p {
  font-size: 16px;
  color: rgba(255, 255, 255, .75);
  line-height: 1.8;
  margin-bottom: 28px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: flex;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

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

.step-num {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 800;
  font-size: 17px;
  box-shadow: 0 6px 18px rgba(26, 92, 255, .4);
}

.step-body h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 5px;
}

.step-body p {
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
}

.showcase {
  background: #fff;
}

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

.showcase-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.showcase-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.showcase-image {
  height: 180px;
  overflow: hidden;
}

.showcase-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.showcase-card:hover .showcase-image img {
  transform: scale(1.05);
}

.showcase-body {
  padding: 24px;
}

.showcase-body .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--secondary-light);
  color: #00877f;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 10px;
}

.showcase-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--dark);
  margin-bottom: 8px;
}

.showcase-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.faq {
  background: var(--bg);
}

.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16px;
  color: var(--dark);
  transition: var(--transition);
}

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

.faq-item summary i {
  color: var(--primary);
  font-size: 14px;
  transition: transform var(--transition);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
}

.faq-item[open] summary i {
  transform: rotate(180deg);
}

.faq-item[open] {
  border-color: rgba(26, 92, 255, .2);
}

.faq-answer {
  padding: 0 26px 24px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}

.cta {
  position: relative;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 120px 0;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13, 63, 191, .92), rgba(14, 21, 37, .94));
}

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

.cta h2 {
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
}

.cta p {
  font-size: 17px;
  color: rgba(255, 255, 255, .8);
  max-width: 620px;
  margin: 0 auto 36px;
}

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

.site-footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 64px 0 0;
}

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

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

.footer-brand .logo-text {
  color: #fff;
  font-size: 19px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #8ea0b8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: #8ea0b8;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}

.footer-bottom a {
  color: #94a3b8;
}

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

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
}

@media (max-width: 1024px) {
  .section {
    padding: 72px 0;
  }

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

  .nav-search input {
    width: 130px;
  }

  .main-nav a {
    padding: 10px 12px;
    font-size: 14px;
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    min-height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: .3s ease;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 99;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 16px;
  }

  .main-nav a.active::after {
    display: none;
  }

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

  .nav-actions {
    gap: 8px;
  }

  .nav-search {
    display: none;
  }

  .nav-actions .btn-outline {
    padding: 10px 16px;
    font-size: 14px;
  }

  .hero {
    padding: 80px 0 60px;
  }

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

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

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps-text br {
    display: none;
  }

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

  .cms-item {
    padding: 22px;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 56px 0;
  }

  .logo-text {
    font-size: 16px;
  }

  .logo-badge {
    display: none;
  }

  .nav-actions .btn-outline {
    display: none;
  }

  .nav-actions .btn-primary {
    padding: 10px 18px;
    font-size: 14px;
  }

  .hero {
    padding: 68px 0 48px;
  }

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

  .hero-desc {
    font-size: 16px;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stat {
    padding: 16px 14px;
  }

  .hero-stat .num {
    font-size: 22px;
  }

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

  .cms-item {
    flex-direction: column;
    gap: 14px;
  }

  .cms-icon {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }

  .faq-item summary {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 20px 20px;
    font-size: 14px;
  }

  .cta {
    padding: 80px 0;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0e1a2b;
  --primary-light: #1a2940;
  --primary-dark: #080f1a;
  --accent: #c9a05a;
  --accent-dark: #a8853f;
  --accent-light: #f0e2c8;
  --bg: #f5f7fa;
  --bg-dark: #0b1524;
  --text: #1e2a3a;
  --text-light: #5a6b7d;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(10,20,40,.08);
  --shadow-lg: 0 16px 40px rgba(10,20,40,.14);
  --transition: .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(10,20,40,.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), #22395c);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 4px 14px rgba(14,26,43,.28);
}

.logo-text {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}

.logo-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-light);
  border-radius: 20px;
  vertical-align: 3px;
}

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

.main-nav a {
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-light);
  transition: all var(--transition);
}

.main-nav a:hover { color: var(--primary); background: #f0f2f6; }
.main-nav a.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px rgba(14,26,43,.22); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 24px;
  background: #f0f2f6;
  border: 1px solid transparent;
  transition: all var(--transition);
}

.nav-search:focus-within {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(201,160,90,.14);
}

.nav-search i { font-size: 14px; color: var(--text-light); }

.nav-search input {
  border: none;
  outline: none;
  background: transparent;
  width: 90px;
  font-size: 13.5px;
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn-outline:hover { border-color: var(--primary); background: rgba(14,26,43,.04); transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #1d3pogressive);
  color: #fff;
  box-shadow: 0 4px 16px rgba(14,26,43,.24);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(14,26,43,.32); }

.btn-gold {
  background: linear-gradient(135deg, var(--accent), #d9b775);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(201,160,90,.32);
}

.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(201,160,90,.42); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Page Hero */
.page-hero {
  position: relative;
  padding: 92px 0 88px;
  background: linear-gradient(135deg, rgba(8,15,26,.9), rgba(14,26,43,.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  margin-bottom: 22px;
  color: rgba(255,255,255,.65);
}

.breadcrumb a { color: rgba(255,255,255,.65); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 10px; opacity: .7; }

.page-hero-content { max-width: 760px; position: relative; z-index: 1; }

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .5px;
  margin-bottom: 18px;
}

.page-hero h1 span { color: var(--accent); }

.page-hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.78);
  margin-bottom: 32px;
  max-width: 640px;
}

.page-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
  padding: 28px 32px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  max-width: 640px;
}

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

.stat-num {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label { font-size: 13.5px; color: rgba(255,255,255,.72); margin-top: 4px; }

/* Section */
.section { padding: 96px 0; }
.section + .section { border-top: 1px solid var(--border); }

.section-header { text-align: center; max-width: 680px; margin: 0 auto 56px; }

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  margin-bottom: 14px;
}

.section-title { font-size: 34px; font-weight: 700; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }

.section-subtitle { font-size: 16px; color: var(--text-light); line-height: 1.8; }

/* Entry Cards */
.entry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.entry-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.entry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(201,160,90,.35); }
.entry-card:hover::before { opacity: 1; }

.entry-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent-light), #fff);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 20px;
  box-shadow: 0 6px 18px rgba(201,160,90,.18);
}

.entry-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }

.entry-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* Guide Detail */
.guide-list { display: flex; flex-direction: column; gap: 32px; }

.guide-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}

.guide-item:hover { box-shadow: var(--shadow-lg); }

.guide-media { position: relative; min-height: 260px; overflow: hidden; }

.guide-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }

.guide-item:hover .guide-media img { transform: scale(1.03); }

.guide-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,26,43,.18), transparent);
}

.guide-content { padding: 40px 44px; }

.guide-content .tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--accent-dark);
  margin-bottom: 14px;
}

.guide-content h3 { font-size: 23px; font-weight: 700; color: var(--primary); margin-bottom: 14px; }

.guide-content p { font-size: 15px; color: var(--text-light); line-height: 1.8; margin-bottom: 10px; }

.guide-content ul { margin-top: 10px; }

.guide-content ul li { position: relative; padding-left: 22px; font-size: 14.5px; color: var(--text); margin-bottom: 8px; }

.guide-content ul li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 0;
  font-size: 12px;
  color: var(--accent);
}

/* Steps */
.steps-section { background: #fff; }

.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }

.steps-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 16%;
  right: 16%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-light), var(--accent), var(--accent-light));
  opacity: .35;
}

.step-item { text-align: center; padding: 0 16px; position: relative; }

.step-num {
  width: 88px;
  height: 88px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #22395c);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(14,26,43,.3);
  position: relative;
  z-index: 1;
}

.step-item h3 { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }

.step-item p { font-size: 14.5px; color: var(--text-light); line-height: 1.75; }

/* Security */
.security-block {
  background: linear-gradient(135deg, var(--bg-dark), var(--primary));
  padding: 96px 0;
  color: #fff;
}

.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

.security-media img { border-radius: var(--radius); box-shadow: 0 20px 50px rgba(0,0,0,.4); }

.security-content h2 { font-size: 32px; font-weight: 700; margin-bottom: 14px; }

.security-content h2 span { color: var(--accent); }

.security-content > p { font-size: 15.5px; color: rgba(255,255,255,.7); margin-bottom: 30px; }

.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.security-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.security-item:hover { background: rgba(255,255,255,.1); transform: translateY(-2px); }

.security-item i { font-size: 18px; color: var(--accent); margin-top: 2px; flex-shrink: 0; }

.security-item h4 { font-size: 15.5px; font-weight: 600; margin-bottom: 4px; }

.security-item p { font-size: 13.5px; color: rgba(255,255,255,.62); line-height: 1.6; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item.active { box-shadow: var(--shadow); border-color: rgba(201,160,90,.35); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--primary);
  transition: background var(--transition);
}

.faq-question:hover { background: #f9fafc; }

.faq-question i {
  font-size: 13px;
  color: var(--accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  transition: max-height .35s ease, padding .35s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

.faq-answer p { font-size: 14.5px; color: var(--text-light); line-height: 1.8; }

/* CTA */
.cta-section { padding: 56px 0 96px; background: var(--bg); border-top: none; }

.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--bg-dark));
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(14,26,43,.35);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(201,160,90,.1);
}

.cta-box h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }

.cta-box p { font-size: 16px; color: rgba(255,255,255,.76); margin-bottom: 30px; }

.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.7);
  padding: 64px 0 0;
}

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

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-icon { background: rgba(255,255,255,.1); color: var(--accent); }

.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 340px; }

.footer-col h4 {
  color: #fff;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.58);
  margin-bottom: 10px;
  transition: all var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .nav-actions .nav-search,
  .nav-actions .btn-outline,
  .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; }
  
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px 24px;
    gap: 8px;
    box-shadow: 0 16px 40px rgba(0,0,0,.1);
    border-bottom: 1px solid var(--border);
  }
  
  .main-nav.open a { width: 100%; text-align: center; }
  
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .page-hero h1 { font-size: 36px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .page-hero { padding: 64px 0 56px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero-subtitle { font-size: 15px; }
  .hero-stats { grid-template-columns: 1fr; gap: 12px; padding: 24px; margin-top: 40px; }
  .guide-item { grid-template-columns: 1fr; gap: 0; }
  .guide-media { min-height: 200px; }
  .guide-content { padding: 28px; }
  .guide-item:nth-child(2) .guide-media { order: 0; }
  .steps-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid::before { display: none; }
  .security-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-box { padding: 48px 24px; }
  .cta-box h2 { font-size: 26px; }
  .faq-question { font-size: 14.5px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { gap: 12px; }
  .logo-text { font-size: 16px; }
  .logo-badge { display: none; }
  .entry-grid { grid-template-columns: 1fr; }
  .security-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-title { font-size: 26px; }
  .page-hero h1 { font-size: 26px; }
  .btn { padding: 9px 18px; font-size: 13.5px; }
}

/* roulang page: article */
:root {
  --primary: #14b8a6;
  --primary-dark: #0f9488;
  --primary-light: #99f6e4;
  --primary-gradient: linear-gradient(135deg, #0f766e, #14b8a6);
  --accent: #f59e0b;
  --dark: #0b1220;
  --dark-deep: #080e1a;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow: 0 4px 24px rgba(15,23,42,.08);
  --shadow-lg: 0 16px 40px rgba(15,23,42,.14);
  --transition: .25s ease;
  --container: 1180px;
  --header-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font: inherit; color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(20,184,166,.35);
  outline-offset: 2px;
  border-radius: 4px;
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
}
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: var(--shadow-sm);
}
.logo-text { font-size: 18px; font-weight: 800; letter-spacing: .2px; color: var(--dark); white-space: nowrap; }
.logo-text .logo-badge {
  font-size: 11px;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  padding: 2px 6px;
  border-radius: 6px;
  margin-left: 6px;
  vertical-align: middle;
}
.main-nav { display: flex; gap: 28px; align-items: center; }
.main-nav a { font-weight: 500; font-size: 15px; color: var(--muted); padding: 6px 2px; position: relative; }
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--dark); font-weight: 700; }
.main-nav a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 3px; border-radius: 3px; background: var(--primary-gradient); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  min-width: 180px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(20,184,166,.12); }
.nav-search i { color: var(--muted); font-size: 14px; }
.nav-search input { border: none; outline: none; background: transparent; min-width: 0; flex: 1; font-size: 14px; color: var(--text); }
.nav-toggle {
  display: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  transition: all var(--transition);
}
.nav-toggle:hover { background: #ecfdf5; color: var(--primary-dark); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--primary-gradient); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--dark); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,.5); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 86px 0 64px;
  background-size: cover;
  background-position: center;
  background-color: var(--dark-deep);
  color: #fff;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8,14,26,.94) 20%, rgba(8,14,26,.68) 70%, rgba(8,14,26,.42));
}
.banner-inner { position: relative; z-index: 2; max-width: 900px; }
.breadcrumb { display: flex; gap: 10px; align-items: center; font-size: 13px; color: rgba(255,255,255,.72); margin-bottom: 18px; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: rgba(255,255,255,.4); }
.banner-inner h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.25;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: .2px;
}
.banner-meta { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff;
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

/* ===== Content Section ===== */
.content-section { padding: 56px 0 64px; }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 32px; align-items: start; }
.article-col { min-width: 0; }
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}
.article-content { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-content h2 { font-size: 26px; margin: 32px 0 14px; color: var(--dark); line-height: 1.4; }
.article-content h3 { font-size: 20px; margin: 26px 0 12px; color: var(--dark); line-height: 1.4; }
.article-content p { margin: 14px 0; }
.article-content ul, .article-content ol { margin: 14px 0; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content a { color: var(--primary-dark); font-weight: 600; }
.article-content a:hover { text-decoration: underline; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: #f0fdfa;
  padding: 14px 20px;
  border-radius: 0 10px 10px 0;
  margin: 18px 0;
  color: var(--dark);
}
.article-content img { border-radius: 12px; margin: 18px 0; }
.article-content code {
  background: var(--dark);
  color: #7dd3fc;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: .9em;
  font-family: 'SF Mono', Consolas, monospace;
}
.article-content pre {
  background: var(--dark);
  color: #e2e8f0;
  padding: 18px 22px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-content table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--bg); font-weight: 600; }

.article-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--border); }
.tag-title { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 14px; font-weight: 600; }
.tag {
  display: inline-block;
  background: #f0fdfa;
  border: 1px solid #ccfbf1;
  color: #0f766e;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  transition: all var(--transition);
}
.tag:hover { background: var(--primary-gradient); border-color: transparent; color: #fff; transform: translateY(-1px); }

.not-found-card {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 80px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.not-found-card i { font-size: 44px; color: var(--primary); margin-bottom: 16px; }
.not-found-card h2 { font-size: 24px; margin-bottom: 10px; color: var(--dark); }
.not-found-card p { color: var(--muted); max-width: 400px; margin: 0 auto 24px; font-size: 15px; }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 96px; }
.side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.side-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dark);
}
.side-card h3 i { color: var(--primary); }
.info-list { list-style: none; }
.info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 13px;
}
.info-list li:last-child { border-bottom: none; }
.info-list li span { color: var(--muted); flex-shrink: 0; }
.info-list li strong { color: var(--dark); font-weight: 600; text-align: right; }
.side-nav-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg);
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 500;
  font-size: 14px;
  transition: all var(--transition);
}
.side-nav-list a:last-child { margin-bottom: 0; }
.side-nav-list a:hover { background: #ecfdf5; color: var(--primary-dark); transform: translateX(3px); }
.side-nav-list a i:first-child { width: 20px; color: var(--primary); text-align: center; }
.side-nav-list a i:last-child { margin-left: auto; font-size: 12px; color: var(--muted); }
.read-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text);
  transition: all var(--transition);
}
.read-item:last-child { border-bottom: none; }
.read-item i { font-size: 7px; color: var(--primary); transition: color var(--transition); }
.read-item:hover { color: var(--primary); padding-left: 5px; }
.read-item:hover i { color: var(--accent); }

/* ===== Section ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.section-tag {
  display: inline-block;
  background: #ccfbf1;
  color: #0f766e;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: .4px;
}
.section-head h2 { font-size: clamp(24px, 3.5vw, 34px); font-weight: 800; color: var(--dark); margin-bottom: 10px; line-height: 1.3; }
.section-head p { color: var(--muted); font-size: 15px; }

/* ===== Feature Grid ===== */
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: block;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card img { width: 100%; height: 180px; object-fit: cover; }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--dark); padding: 18px 20px 6px; }
.feature-card p { padding: 0 20px; color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 20px 20px;
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 14px;
  transition: gap var(--transition), color var(--transition);
}
.feature-card:hover .text-link { gap: 10px; color: var(--primary); }

/* ===== FAQ ===== */
.faq-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; max-width: 920px; margin: 0 auto; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  line-height: 1.5;
}
.faq-item h3::before {
  content: 'Q';
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: var(--primary-gradient);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}
.faq-item p { font-size: 14px; color: var(--muted); padding-left: 34px; }

/* ===== CTA ===== */
.cta-section { position: relative; padding: 88px 0; background-size: cover; background-position: center; color: #fff; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(8,14,26,.84); }
.cta-inner { position: relative; z-index: 2; text-align: center; }
.cta-inner h2 { font-size: clamp(24px, 3.5vw, 34px); font-weight: 800; margin-bottom: 12px; line-height: 1.3; }
.cta-inner p { color: rgba(255,255,255,.75); margin-bottom: 28px; font-size: 16px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--dark-deep); color: rgba(255,255,255,.7); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo .logo-text { color: #fff; }
.footer-brand p { margin-top: 14px; font-size: 14px; max-width: 360px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 700; }
.footer-col a { display: block; margin-bottom: 9px; font-size: 14px; color: rgba(255,255,255,.6); transition: color var(--transition), padding-left var(--transition); }
.footer-col a:hover { color: var(--primary-light); padding-left: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 22px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
  text-align: center;
}
.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav { gap: 20px; }
  .nav-search { min-width: 140px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; display: grid; grid-template-columns: repeat(3,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 960px) {
  .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 6px;
    padding: 16px 24px;
    display: none;
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    z-index: 99;
  }
  .main-nav.open { display: flex; }
  .main-nav a { display: block; padding: 10px 12px; border-radius: 10px; font-size: 15px; width: 100%; }
  .main-nav a:hover { background: #ecfdf5; }
  .main-nav a.active { background: #ecfdf5; color: var(--primary-dark); }
  .main-nav a.active::after { display: none; }
  .nav-actions .btn-outline { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 18px; }
  .content-section { padding: 40px 0 48px; }
  .section { padding: 48px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .article-card { padding: 26px 22px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .page-banner { padding: 56px 0 44px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-section { padding: 64px 0; }
  .logo-text { font-size: 16px; }
  .nav-actions .btn-primary { padding: 9px 14px; font-size: 13px; }
}

@media (max-width: 520px) {
  .logo-badge { display: none; }
  .banner-inner h1 { font-size: 26px; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 18px; }
  .cta-actions .btn { width: 100%; }
  .header-inner { gap: 12px; }
}

/* roulang page: category2 */
:root {
  --primary-600: #1663e6;
  --primary-700: #124fbd;
  --primary-50: #eef4ff;
  --accent-500: #0db2a0;
  --accent-600: #0a9586;
  --ink-900: #0d1b2e;
  --ink-800: #13263d;
  --ink-700: #1f3550;
  --ink-600: #3e5673;
  --ink-500: #6b7d94;
  --ink-400: #93a4b8;
  --line-200: #dfe6ef;
  --line-100: #eef1f6;
  --bg-body: #f6f9fc;
  --bg-white: #ffffff;
  --bg-deep: #0b1a2e;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-1: 0 2px 10px rgba(13, 27, 46, 0.05);
  --shadow-2: 0 12px 32px rgba(13, 27, 46, 0.08);
  --shadow-3: 0 24px 60px rgba(13, 27, 46, 0.14);
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 40px;
  --sp-5: 64px;
  --sp-6: 96px;
  --font-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: all .25s ease;
  --container-w: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-base);
  background: var(--bg-body);
  color: var(--ink-700);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input { font-family: inherit; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--ink-900); }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  transition: var(--transition);
  cursor: pointer;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: var(--primary-600);
  color: #fff;
  box-shadow: 0 6px 18px rgba(22, 99, 230, .28);
}
.btn-primary:hover { background: var(--primary-700); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(22, 99, 230, .35); }
.btn-outline {
  background: transparent;
  color: var(--primary-600);
  border: 1.5px solid var(--primary-600);
}
.btn-outline:hover { background: var(--primary-50); transform: translateY(-1px); }
.btn-light {
  background: #fff;
  color: var(--ink-900);
  box-shadow: 0 6px 20px rgba(255, 255, 255, .12);
}
.btn-light:hover { background: #eaf0fb; transform: translateY(-2px); }

/* ========== Header 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line-100);
  box-shadow: 0 1px 12px rgba(13, 27, 46, .04);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-600), #3a8bff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 6px 16px rgba(22, 99, 230, .3);
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: .5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.logo-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-600);
  background: var(--primary-50);
  border: 1px solid rgba(22, 99, 230, .2);
  padding: 2px 8px;
  border-radius: 999px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
}
.main-nav a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-600);
  border-radius: 999px;
  position: relative;
}
.main-nav a:hover { color: var(--primary-600); background: var(--primary-50); }
.main-nav a.active { color: var(--primary-600); background: var(--primary-50); font-weight: 700; }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary-600);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-body);
  border: 1px solid var(--line-100);
  border-radius: 999px;
  padding: 8px 16px;
  min-width: 220px;
  transition: var(--transition);
}
.nav-search:focus-within {
  border-color: rgba(22, 99, 230, .4);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(22, 99, 230, .1);
}
.nav-search i { color: var(--ink-400); font-size: 14px; }
.nav-search input { border: none; outline: none; background: transparent; font-size: 14px; width: 100%; color: var(--ink-700); }
.nav-search input::placeholder { color: var(--ink-400); }
.nav-toggle { display: none; }
.nav-toggle i { font-size: 20px; color: var(--ink-700); }

/* ========== Hero ========== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(10, 22, 42, .94), rgba(16, 40, 78, .82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  padding: 110px 0 90px;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -100px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(22, 99, 230, .4), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #dcebff;
  backdrop-filter: blur(8px);
  margin-bottom: 22px;
}
.hero-badge i { color: #7fc3ff; }
.hero-content h1 {
  font-size: 46px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-content h1 span {
  color: #8cc5ff;
}
.hero-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, .82);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 14px;
  color: rgba(255, 255, 255, .68);
}
.hero-meta i { color: #7fc3ff; margin-right: 6px; }

/* ========== 通用 Section ========== */
.section {
  padding: 88px 0;
}
.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--primary-600);
  background: var(--primary-50);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 32px; margin-bottom: 12px; }
.section-head p { font-size: 15px; color: var(--ink-500); line-height: 1.8; }
.section-head .section-tag i { font-size: 12px; }

/* ========== 板块2：防护体系 ========== */
.protect-section { background: var(--bg-white); }
.protect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.protect-card {
  background: var(--bg-body);
  border: 1px solid var(--line-100);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: var(--transition);
}
.protect-card:hover {
  background: #fff;
  border-color: rgba(22, 99, 230, .2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-2);
}
.protect-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-50), #dce8ff);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.protect-card h3 { font-size: 18px; margin-bottom: 10px; }
.protect-card p { font-size: 14px; color: var(--ink-500); line-height: 1.7; }
.protect-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary-600);
  font-size: 14px;
  font-weight: 600;
  margin-top: 14px;
}
.protect-link i { font-size: 12px; transition: transform .2s; }
.protect-link:hover i { transform: translateX(4px); }

/* ========== 板块3：设置流程 ========== */
.steps-section { background: var(--bg-body); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--line-100);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  box-shadow: var(--shadow-1);
  transition: var(--transition);
}
.step-item:hover { box-shadow: var(--shadow-2); transform: translateY(-4px); }
.step-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--line-200);
  line-height: 1;
  margin-bottom: 16px;
  transition: var(--transition);
}
.step-item:hover .step-num { color: var(--primary-600); }
.step-item h3 { font-size: 17px; margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--ink-500); line-height: 1.7; }
.step-arrow {
  position: absolute;
  right: -18px;
  top: 42px;
  color: var(--line-200);
  font-size: 18px;
  z-index: 2;
}
.step-item:last-child .step-arrow { display: none; }

/* ========== 板块4：安全数据 ========== */
.stats-section {
  background: linear-gradient(135deg, var(--bg-deep), #0f2540);
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(22, 99, 230, .35), transparent 65%);
  border-radius: 50%;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}
.stat-card {
  text-align: center;
  padding: 34px 16px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.stat-card:hover { background: rgba(255, 255, 255, .08); transform: translateY(-4px); }
.stat-number {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.stat-number span { color: #7fc3ff; font-size: 22px; margin-left: 2px; }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, .62); }
.stat-desc { font-size: 12px; color: rgba(255, 255, 255, .42); margin-top: 4px; }

/* ========== 板块5：图文展示 ========== */
.showcase-section { background: var(--bg-white); }
.showcase-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
.showcase-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-3);
  position: relative;
}
.showcase-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.showcase-media .media-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 27, 46, .5), transparent 50%);
}
.showcase-badge {
  position: absolute;
  left: 18px;
  top: 18px;
  background: rgba(255, 255, 255, .9);
  color: var(--primary-600);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.showcase-body .section-tag { margin-bottom: 12px; }
.showcase-body h2 { font-size: 28px; margin-bottom: 16px; }
.showcase-body p { font-size: 15px; color: var(--ink-500); line-height: 1.85; margin-bottom: 20px; }
.showcase-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--ink-600);
}
.showcase-list i {
  color: var(--accent-500);
  font-size: 14px;
  margin-top: 5px;
}

/* ========== 板块6：安全要点 ========== */
.tips-section { background: var(--bg-body); }
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.tips-card {
  background: #fff;
  border: 1px solid var(--line-100);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  display: flex;
  gap: 14px;
  transition: var(--transition);
}
.tips-card:hover { box-shadow: var(--shadow-2); transform: translateY(-3px); border-color: rgba(22, 99, 230, .18); }
.tips-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.tips-card h3 { font-size: 16px; margin-bottom: 6px; }
.tips-card p { font-size: 13px; color: var(--ink-500); line-height: 1.7; }

/* ========== FAQ ========== */
.faq-section { background: var(--bg-white); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line-100);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  background: var(--bg-body);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(22, 99, 230, .24); }
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--primary-50); }
.faq-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 8px;
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}
.faq-item[open] { background: #fff; box-shadow: var(--shadow-1); }
.faq-item[open] summary { border-bottom: 1px solid var(--line-100); }
.faq-answer {
  padding: 18px 24px 22px 70px;
  font-size: 15px;
  color: var(--ink-500);
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-700), #1a5ad0 45%, var(--primary-600));
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 255, 255, .18), transparent 60%);
  border-radius: 50%;
}
.cta-box {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-info h2 { color: #fff; font-size: 30px; margin-bottom: 10px; }
.cta-info p { font-size: 15px; color: rgba(255, 255, 255, .78); max-width: 600px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, .72);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand .logo .logo-text { color: #fff; }
.footer-brand .logo-badge {
  color: #8cc5ff;
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .2);
}
.footer-brand .logo-icon { background: #fff; color: var(--primary-700); box-shadow: none; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .54);
  margin-top: 14px;
  max-width: 360px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .58);
}
.footer-col a:hover { color: #8cc5ff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}
.footer-bottom a { color: rgba(255, 255, 255, .55); }
.footer-bottom a:hover { color: #8cc5ff; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
  .main-nav { order: 3; width: 100%; overflow-x: auto; margin-left: 0; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .main-nav a { flex-shrink: 0; }
  .nav-actions { margin-left: auto; }
  .nav-search { min-width: 140px; }
  .protect-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: 1fr; gap: 32px; }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .container { padding: 0 18px; }
  .header-inner { flex-wrap: wrap; }
  .logo-text { font-size: 16px; }
  .logo-badge { display: none; }
  .nav-search { display: none; }
  .nav-actions { gap: 8px; }
  .btn-outline { display: none; }
  .page-hero { padding: 70px 0 56px; }
  .hero-content h1 { font-size: 32px; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { flex-direction: column; gap: 8px; }
  .protect-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-number { font-size: 30px; }
  .tips-grid { grid-template-columns: 1fr; }
  .faq-answer { padding-left: 24px; }
  .cta-box { flex-direction: column; text-align: center; }
  .cta-info p { margin: 0 auto; }
  .cta-actions { justify-content: center; }
}

@media (max-width: 520px) {
  .logo-icon { width: 34px; height: 34px; font-size: 15px; }
  .nav-actions .btn { padding: 8px 16px; font-size: 14px; }
  .nav-actions .btn-primary span { display: none; }
  .section-head h2 { font-size: 26px; }
  .showcase-body h2 { font-size: 23px; }
  .showcase-grid { gap: 24px; }
  .showcase-media img { aspect-ratio: 3 / 2; }
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category3 */
:root {
  --primary: #1a3a6b;
  --primary-light: #2a5c9e;
  --primary-deep: #0e1c33;
  --accent: #d4a843;
  --accent-hover: #b8922f;
  --bg: #f6f8fc;
  --bg-deep: #0e1c33;
  --bg-soft: #eef2f8;
  --text: #1c2a3a;
  --text-light: #5a6b80;
  --text-lighter: #8a9ab0;
  --border: #e3e9f2;
  --card-bg: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 30px rgba(18, 35, 60, 0.07);
  --shadow-hover: 0 16px 44px rgba(18, 35, 60, 0.13);
  --transition: all 0.3s ease;
  --container: 1200px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 78px; flex-wrap: wrap; }
.site-header { background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 20px rgba(18,35,60,0.04); }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 42px; height: 42px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 4px 14px rgba(26,58,107,0.25); }
.logo-text { font-size: 19px; font-weight: 700; color: var(--primary-deep); letter-spacing: 0.5px; white-space: nowrap; }
.logo-badge { background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 6px; margin-left: 8px; vertical-align: 2px; letter-spacing: 0.5px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.main-nav a { padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text-light); border-radius: 8px; transition: var(--transition); position: relative; }
.main-nav a:hover { color: var(--primary); background: rgba(26,58,107,0.06); }
.main-nav a.active { color: var(--primary); font-weight: 600; background: rgba(26,58,107,0.10); }
.main-nav a.active::after { content: ''; display: block; height: 2px; background: var(--accent); border-radius: 2px; margin-top: 4px; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search { display: flex; align-items: center; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; gap: 8px; transition: var(--transition); }
.nav-search i { color: var(--text-lighter); font-size: 14px; }
.nav-search input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--text); width: 120px; }
.nav-search:focus-within { border-color: var(--primary-light); background: #fff; box-shadow: 0 0 0 3px rgba(26,58,107,0.10); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 22px; border-radius: 10px; font-size: 14px; font-weight: 600; transition: var(--transition); cursor: pointer; line-height: 1.4; }
.btn-outline { border: 1px solid var(--border); background: transparent; color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(26,58,107,0.04); box-shadow: 0 4px 12px rgba(26,58,107,0.08); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 6px 20px rgba(26,58,107,0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(26,58,107,0.34); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(26,58,107,0.24); }
.btn-accent { background: linear-gradient(135deg, var(--accent), #c49a35); color: #fff; box-shadow: 0 6px 20px rgba(212,168,67,0.30); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(212,168,67,0.38); }
.btn-accent:active { transform: translateY(0); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border); background: #fff; color: var(--primary); font-size: 18px; align-items: center; justify-content: center; }
.nav-toggle:hover { background: var(--bg-soft); }
.hero-section { position: relative; padding: 96px 0; background: var(--primary-deep); overflow: hidden; }
.hero-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.45; }
.hero-section::after { content: ''; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(14,28,51,0.95) 0%, rgba(14,28,51,0.72) 50%, rgba(14,28,51,0.3) 100%); }
.hero-inner { position: relative; z-index: 2; max-width: 840px; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); color: #fff; padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 500; margin-bottom: 24px; backdrop-filter: blur(6px); }
.hero-tag i { color: var(--accent); }
.hero-title { font-size: 48px; line-height: 1.2; font-weight: 800; color: #fff; margin-bottom: 20px; letter-spacing: -1px; }
.hero-title span { color: var(--accent); }
.hero-desc { font-size: 18px; line-height: 1.75; color: rgba(255,255,255,0.85); margin-bottom: 36px; max-width: 680px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-actions .btn { padding: 14px 30px; font-size: 15px; }
.hero-meta { display: flex; gap: 24px; margin-top: 48px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.16); }
.hero-meta-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.8); font-size: 14px; }
.hero-meta-item i { color: var(--accent); font-size: 16px; }
.breadcrumb-wrap { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 0; font-size: 14px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; color: var(--text-lighter); flex-wrap: wrap; }
.breadcrumb a { color: var(--text-light); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 12px; color: var(--text-lighter); }
.breadcrumb .current { color: var(--primary); font-weight: 600; }
.section { padding: 80px 0; }
.section-alt { background: #fff; }
.section-head { max-width: 700px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-title { font-size: 36px; font-weight: 800; color: var(--primary-deep); letter-spacing: -0.5px; margin-bottom: 12px; line-height: 1.25; }
.section-subtitle { font-size: 17px; color: var(--text-light); line-height: 1.7; }
.section-line { width: 56px; height: 4px; background: linear-gradient(90deg, var(--accent), var(--accent-hover)); border-radius: 4px; margin-bottom: 18px; }
.section-line.center { margin-left: auto; margin-right: auto; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.news-card-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.news-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .news-card-cover img { transform: scale(1.05); }
.news-card-cover::after { content: '乐鱼在线登录入口官网'; position: absolute; bottom: 10px; right: 10px; background: rgba(14,28,51,0.72); color: #fff; font-size: 11px; padding: 3px 10px; border-radius: 999px; backdrop-filter: blur(4px); letter-spacing: 0.3px; }
.news-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(212,168,67,0.14); color: #a97e1a; font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 999px; margin-bottom: 12px; }
.news-tag-blue { background: rgba(26,92,158,0.12); color: var(--primary-light); }
.news-tag-green { background: rgba(39,158,116,0.14); color: #1d8a63; }
.news-tag-purple { background: rgba(122,92,198,0.13); color: #6248a8; }
.news-title { font-size: 19px; font-weight: 700; color: var(--text); line-height: 1.45; margin-bottom: 10px; transition: var(--transition); }
.news-card:hover .news-title { color: var(--primary); }
.news-excerpt { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-lighter); border-top: 1px solid var(--border); padding-top: 14px; }
.news-meta i { font-size: 13px; }
.news-meta span { display: inline-flex; align-items: center; gap: 6px; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.category-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: var(--transition); display: flex; flex-direction: column; gap: 12px; }
.category-card:hover { background: #fff; box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(26,58,107,0.2); }
.category-icon { width: 50px; height: 50px; border-radius: 14px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; box-shadow: 0 6px 16px rgba(26,58,107,0.22); }
.category-name { font-size: 17px; font-weight: 700; color: var(--text); }
.category-desc { font-size: 13px; color: var(--text-light); line-height: 1.65; }
.category-link { font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.category-link i { font-size: 12px; transition: var(--transition); }
.category-link:hover { color: var(--accent); }
.category-link:hover i { transform: translateX(4px); }
.steps-section { background: var(--bg-deep); position: relative; overflow: hidden; color: #fff; padding: 90px 0; }
.steps-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat; opacity: 0.18; }
.steps-section .container { position: relative; z-index: 2; }
.steps-title { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.steps-subtitle { color: rgba(255,255,255,0.72); font-size: 16px; margin-bottom: 48px; max-width: 600px; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.step-item { position: relative; padding: 32px 28px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); backdrop-filter: blur(8px); transition: var(--transition); }
.step-item:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
.step-num { width: 44px; height: 44px; border-radius: 12px; background: var(--accent); color: var(--bg-deep); font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; box-shadow: 0 4px 16px rgba(212,168,67,0.4); }
.step-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-desc { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.72); }
.stats-section { padding: 60px 0; background: #fff; border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; padding: 20px; position: relative; }
.stat-item:not(:last-child)::after { content: ''; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 54px; background: var(--border); }
.stat-number { font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1.2; letter-spacing: -1px; }
.stat-number i { font-size: 32px; margin-right: 4px; }
.stat-label { font-size: 14px; color: var(--text-light); margin-top: 6px; }
.rank-list { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow); }
.rank-item { display: flex; align-items: center; gap: 16px; padding: 18px 24px; border-bottom: 1px solid var(--border); transition: var(--transition); }
.rank-item:last-child { border-bottom: none; }
.rank-item:hover { background: var(--bg-soft); padding-left: 30px; }
.rank-num { width: 28px; height: 28px; border-radius: 8px; background: var(--bg); color: var(--text-light); font-weight: 700; font-size: 13px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.rank-item:nth-child(1) .rank-num, .rank-item:nth-child(2) .rank-num, .rank-item:nth-child(3) .rank-num { background: var(--accent); color: #fff; }
.rank-link { font-weight: 500; color: var(--text); flex: 1; transition: var(--transition); }
.rank-link:hover { color: var(--primary); }
.rank-time { font-size: 13px; color: var(--text-lighter); flex-shrink: 0; }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: var(--transition); box-shadow: 0 2px 10px rgba(18,35,60,0.03); }
.faq-item:hover { border-color: rgba(26,58,107,0.2); }
.faq-item.open { box-shadow: var(--shadow); }
.faq-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; }
.faq-btn i { color: var(--accent); transition: var(--transition); flex-shrink: 0; font-size: 14px; }
.faq-item.open .faq-btn i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 15px; color: var(--text-light); line-height: 1.75; border-top: 1px solid var(--border); padding-top: 14px; margin-top: 4px; }
.cta-section { background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 100%); padding: 70px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.15; }
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-title { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.cta-desc { font-size: 15px; color: rgba(255,255,255,0.75); max-width: 520px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,0.75); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 44px; }
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,0.58); max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-col a { display: block; padding: 7px 0; font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; font-size: 13px; color: rgba(255,255,255,0.44); display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-bottom a { color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-bottom a:hover { color: var(--accent); }
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .main-nav { display: none; position: absolute; top: 78px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px; box-shadow: 0 20px 40px rgba(18,35,60,0.1); gap: 4px; z-index: 100; max-height: calc(100vh - 78px); overflow-y: auto; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 14px 16px; }
  .main-nav a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-search { display: none; }
  .nav-actions .btn-outline { display: none; }
  .hero-title { font-size: 38px; }
  .section-title { font-size: 30px; }
  .steps-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { justify-content: center; }
  .stat-item:not(:last-child)::after { display: none; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .header-inner { gap: 12px; height: auto; padding: 12px 0; }
  .logo-text { font-size: 16px; }
  .logo-badge { display: none; }
  .hero-section { padding: 64px 0; }
  .hero-title { font-size: 30px; }
  .hero-desc { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { flex-direction: column; gap: 10px; padding-top: 20px; }
  .section { padding: 56px 0; }
  .news-grid { grid-template-columns: 1fr; gap: 20px; }
  .category-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .stat-number { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .rank-item { flex-wrap: wrap; padding: 14px 16px; }
  .rank-link { flex-basis: calc(100% - 44px); }
  .rank-time { padding-left: 44px; }
  .faq-btn { padding: 16px; font-size: 15px; }
  .faq-answer-inner { padding: 0 16px 16px; }
  .cta-title { font-size: 24px; }
  .cta-actions .btn { width: 100%; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 15px; }
  .logo-icon { width: 36px; height: 36px; font-size: 15px; border-radius: 10px; }
  .nav-actions .btn-primary { padding: 8px 14px; font-size: 13px; }
  .hero-title { font-size: 26px; }
  .hero-desc { font-size: 15px; }
  .section-title { font-size: 24px; }
  .section-subtitle { font-size: 15px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 12px; }
  .stat-number { font-size: 36px; }
  .news-card-body { padding: 18px; }
  .news-title { font-size: 17px; }
  .category-icon { width: 42px; height: 42px; font-size: 17px; }
  .step-item { padding: 24px 20px; }
  .steps-section { padding: 56px 0; }
  .steps-title { font-size: 24px; }
}
@media (min-width: 1025px) {
  .main-nav { display: flex; }
}