/* roulang page: index */
:root {
  --primary: #4f8cf7;
  --primary-deep: #2b5cbf;
  --accent: #f0b03d;
  --accent-deep: #d08c1e;
  --bg-deep: #0b1220;
  --bg-card: #111c30;
  --bg-card-hover: #16233c;
  --bg-soft: #0f192b;
  --border: #1f2e48;
  --border-light: #2b3d5e;
  --text-main: #e8edf4;
  --text-muted: #8494b5;
  --text-dim: #5c6c8a;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 12px 36px rgba(0, 0, 0, .35);
  --shadow-cta: 0 8px 36px rgba(240, 176, 61, .25);
  --transition-fast: .2s ease;
  --transition-smooth: .35s cubic-bezier(.4, 0, .2, 1);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 90px 0;
  position: relative;
}

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

.section-tag {
  display: inline-block;
  background: rgba(79, 140, 247, .14);
  color: var(--primary);
  border: 1px solid rgba(79, 140, 247, .3);
  border-radius: 999px;
  padding: 5px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 36px;
  line-height: 1.25;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: .5px;
}

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

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(11, 18, 32, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(31, 46, 72, .8);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  flex-shrink: 0;
}

.brand-logo i {
  color: var(--accent);
  font-size: 24px;
}

.brand-logo span.brand-text {
  letter-spacing: .5px;
}

.main-nav {
  display: flex;
  gap: 34px;
  margin-left: 40px;
}

.main-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 22px 0;
  position: relative;
  transition: color var(--transition-fast);
}

.main-nav .nav-link:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 14px;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
  transition: width var(--transition-smooth);
}

.main-nav .nav-link:hover {
  color: var(--text-main);
}

.main-nav .nav-link:hover:after,
.main-nav .nav-link.active:after {
  width: 100%;
}

.main-nav .nav-link.active {
  color: var(--text-main);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.header-search {
  position: relative;
}

.header-search input {
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 38px 8px 18px;
  font-size: 14px;
  color: var(--text-main);
  width: 180px;
  transition: all var(--transition-fast);
}

.header-search input:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, .09);
  width: 220px;
}

.header-search input::placeholder {
  color: var(--text-dim);
}

.header-search button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.header-search button:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 10px 26px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-lg {
  font-size: 16px;
  padding: 14px 36px;
}

.btn-accent {
  background: var(--accent);
  color: #10182a;
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(240, 176, 61, .3);
}

.btn-accent:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(240, 176, 61, .4);
}

.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border-color: rgba(255, 255, 255, .4);
}

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

.btn-key {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 18px rgba(79, 140, 247, .3);
}

.btn-key:hover {
  background: var(--primary-deep);
  border-color: var(--primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(79, 140, 247, .4);
}

.btn-header {
  padding: 8px 22px;
  font-size: 14px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
  background: transparent;
  border-radius: 8px;
  transition: background var(--transition-fast);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, .06);
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  display: block;
}

/* hero */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  padding: 80px 0;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 14, 28, .92), rgba(11, 18, 32, .72) 45%, rgba(11, 18, 32, .88));
  z-index: -1;
}

.hero-content {
  color: var(--text-main);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 176, 61, .12);
  border: 1px solid rgba(240, 176, 61, .35);
  border-radius: 999px;
  padding: 6px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .4px;
  margin-bottom: 24px;
}

.hero-content h1 {
  font-size: 58px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: .5px;
  max-width: 600px;
  margin-bottom: 20px;
}

.hero-content h1 .highlight-text {
  background: linear-gradient(90deg, var(--accent), #ffd078);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content .hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.85;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-metrics {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-metrics .metric {
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  min-width: 120px;
  text-align: center;
}

.hero-metrics .metric strong {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.3;
}

.hero-metrics .metric span {
  font-size: 13px;
  color: var(--text-muted);
}

/* features */
.features-section {
  background: var(--bg-deep);
}

.features-grid .feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  height: 100%;
  transition: all var(--transition-smooth);
}

.features-grid .feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.feature-icon {
  width: 62px;
  height: 62px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, rgba(79, 140, 247, .2), rgba(79, 140, 247, .05));
  border: 1px solid rgba(79, 140, 247, .3);
  color: var(--primary);
  margin-bottom: 22px;
  transition: all var(--transition-smooth);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, rgba(240, 176, 61, .25), rgba(240, 176, 61, .08));
  border-color: rgba(240, 176, 61, .4);
  color: var(--accent);
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* categories */
.categories-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.categories-grid .category-card {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: all var(--transition-smooth);
}

.categories-grid .category-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.category-img {
  width: 40%;
  min-height: 220px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  position: relative;
}

.category-img:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 40%, rgba(17, 28, 48, .85));
}

.category-body {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.category-body h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.category-body p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 20px;
  flex: 1;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
  transition: gap var(--transition-fast);
}

.category-card:hover .category-link {
  gap: 14px;
}

/* news */
.news-section {
  background: var(--bg-deep);
}

.news-grid .news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
}

.news-grid .news-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.news-badge {
  display: inline-block;
  background: rgba(79, 140, 247, .16);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 14px;
  border: 1px solid rgba(79, 140, 247, .25);
}

.news-date {
  font-size: 12px;
  color: var(--text-dim);
}

.news-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
}

.news-card h3 a {
  transition: color var(--transition-fast);
}

.news-card h3 a:hover {
  color: var(--accent);
}

.news-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  flex: 1;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition-fast);
}

.news-more:hover {
  gap: 12px;
  color: var(--accent);
}

.empty-state {
  background: var(--bg-card);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-lg);
  padding: 60px 30px;
  text-align: center;
  color: var(--text-muted);
  font-size: 16px;
}

.empty-state i {
  font-size: 42px;
  color: var(--text-dim);
  display: block;
  margin-bottom: 14px;
}

/* stats */
.stats-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}

.stats-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(8, 14, 28, .94), rgba(11, 18, 32, .82));
  z-index: -1;
}

.stats-grid {
  align-items: center;
}

.stat-item {
  text-align: center;
  padding: 30px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .04);
  transition: all var(--transition-smooth);
}

.stat-item:hover {
  background: rgba(255, 255, 255, .07);
  transform: translateY(-4px);
}

.stat-num {
  font-size: 44px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  display: block;
  margin-bottom: 8px;
}

.stat-num span {
  font-size: 22px;
  font-weight: 800;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* process */
.process-section {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}

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

.process-track:before {
  content: "";
  position: absolute;
  top: 45px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, rgba(79, 140, 247, .1), rgba(79, 140, 247, .5), rgba(79, 140, 247, .1));
  border-radius: 2px;
}

.process-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition-smooth);
}

.process-step:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.step-num {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 6px 18px rgba(79, 140, 247, .35);
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* faq */
.faq-section {
  background: var(--bg-deep);
}

.faq-layout {
  align-items: flex-start;
}

.faq-intro {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}

.faq-intro img {
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}

.faq-intro p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.faq-item h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-item h3 i {
  color: var(--accent);
  font-size: 16px;
}

.faq-item p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-left: 26px;
}

/* cta */
.cta-section {
  position: relative;
  padding: 110px 0;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 14, 28, .92) 15%, rgba(11, 18, 32, .78));
  z-index: -1;
}

.cta-content {
  max-width: 560px;
}

.cta-content h2 {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
}

.cta-content p {
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 32px;
}

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

/* footer */
.site-footer {
  background: #081020;
  border-top: 1px solid var(--border);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.footer-brand h3 i {
  color: var(--accent);
  margin-right: 8px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4:after,
.footer-contact h4:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-contact p {
  color: var(--text-muted);
  font-size: 14px;
  padding: 6px 0;
}

.footer-contact p i {
  color: var(--accent);
  width: 20px;
  margin-right: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(31, 46, 72, .6);
  padding-top: 28px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}

.footer-bottom a {
  color: var(--text-muted);
}

/* responsive */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 44px;
  }

  .section {
    padding: 70px 0;
  }

  .process-track {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .process-track:before {
    display: none;
  }

  .main-nav {
    gap: 20px;
    margin-left: 20px;
  }

  .header-search input {
    width: 140px;
  }

  .header-search input:focus {
    width: 170px;
  }

  .category-card {
    flex-direction: column;
  }

  .category-img {
    width: 100%;
    min-height: 180px;
  }

  .category-img:after {
    background: linear-gradient(0deg, rgba(17, 28, 48, .85), transparent 70%);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(11, 18, 32, .98);
    flex-direction: column;
    padding: 20px 30px;
    gap: 4px;
    margin: 0;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-smooth);
    backdrop-filter: blur(10px);
  }

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

  .main-nav .nav-link {
    padding: 14px 0;
    font-size: 17px;
    border-bottom: 1px solid rgba(31, 46, 72, .5);
  }

  .main-nav .nav-link:after {
    display: none;
  }

  .header-tools {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(8, 16, 32, .98);
    padding: 16px 30px;
    transform: translateY(100%);
    transition: transform var(--transition-smooth);
    border-top: 1px solid var(--border);
    z-index: 200;
  }

  .header-tools.open {
    transform: translateY(0);
  }

  .header-tools .header-search {
    flex: 1;
  }

  .header-tools .header-search input {
    width: 100%;
  }

  .header-tools .header-search input:focus {
    width: 100%;
  }

  .hero {
    min-height: 620px;
    padding: 60px 0;
  }

  .hero-content h1 {
    font-size: 34px;
  }

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

  .section-head h2 {
    font-size: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .stats-grid .stat-num {
    font-size: 34px;
  }
}

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

  .section {
    padding: 56px 0;
  }

  .hero {
    min-height: 540px;
    padding: 50px 0;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .hero-content .hero-desc {
    font-size: 15px;
  }

  .hero-actions {
    gap: 12px;
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero-metrics {
    gap: 10px;
  }

  .hero-metrics .metric {
    padding: 12px 16px;
    flex: 1;
    min-width: 100px;
  }

  .hero-metrics .metric strong {
    font-size: 19px;
  }

  .process-track {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: auto;
  }

  .btn-lg {
    width: 100%;
    text-align: center;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .faq-item p {
    margin-left: 0;
    margin-top: 8px;
  }

  .category-card {
    flex-direction: column;
  }

  .category-img {
    min-height: 160px;
  }

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

/* roulang page: category1 */
:root{
  --primary:#0d1b2a;
  --primary-light:#1b2d45;
  --accent:#f4a261;
  --accent-dark:#e76f51;
  --cyan:#2a9d8f;
  --bg:#f5f7fb;
  --white:#ffffff;
  --text:#152238;
  --muted:#64748b;
  --border:#e2e8f0;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(13,27,42,.08);
  --shadow-lg:0 24px 60px rgba(13,27,42,.16);
  --space:100px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--accent-dark)}
ul,p,h1,h2,h3,h4,h5,h6{margin:0}
i{font-style:normal}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:calc(var(--space) * .9) 0}
@media (max-width:768px){.section{padding:60px 0}}
.section-head{max-width:720px;margin:0 auto 52px;text-align:center}
.section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--accent-dark);
  background:rgba(244,162,97,.12);
  padding:6px 16px;
  border-radius:30px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.section-head h2{font-size:36px;line-height:1.3;color:var(--primary);font-weight:800;letter-spacing:1px}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px}
@media (max-width:768px){.section-head h2{font-size:28px}}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  padding:13px 28px;
  border-radius:50px;
  border:2px solid transparent;
  cursor:pointer;
  transition:all .28s ease;
  line-height:1.4;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;
  box-shadow:0 8px 24px rgba(231,111,81,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(231,111,81,.4);color:#fff}
.btn-ghost{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.45);
  color:#fff;
  backdrop-filter:blur(4px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.18);
  border-color:#fff;
  transform:translateY(-2px);
  color:#fff;
}
.btn-outline{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 20px;font-size:14px}

/* 徽章 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.5px;
  background:var(--primary);
  color:#fff;
  padding:5px 14px;
  border-radius:30px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  background:#f1f5f9;
  padding:4px 14px;
  border-radius:30px;
  font-weight:600;
}

/* 站点头部 */
.site-header{
  background:rgba(13,27,42,.96);
  backdrop-filter:blur(12px);
  position:relative;
  z-index:50;
  border-bottom:1px solid rgba(255,255,255,.06);
  box-shadow:0 4px 20px rgba(0,0,0,.2);
}
.nav-container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:70px;
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:22px;
  font-weight:800;
  color:#fff;
  flex-shrink:0;
}
.nav-brand i{
  color:var(--accent);
  font-size:22px;
}
.nav-brand:hover{color:var(--accent)}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  flex:1;
  justify-content:center;
}
.main-nav::-webkit-scrollbar{display:none}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:600;
  padding:9px 18px;
  border-radius:40px;
  white-space:nowrap;
  transition:all .25s ease;
  border:1px solid transparent;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
}
.nav-link.active{
  color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  box-shadow:0 4px 16px rgba(231,111,81,.35);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:6px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.12);
  border-radius:40px;
  padding:6px 16px;
  color:rgba(255,255,255,.7);
  transition:border-color .25s;
}
.nav-search:focus-within{border-color:var(--accent)}
.nav-search i{font-size:14px}
.nav-search input{
  background:transparent;
  border:0;
  outline:none;
  color:#fff;
  font-size:14px;
  width:150px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.45)}
@media (max-width:1024px){
  .nav-search{display:none}
}
@media (max-width:768px){
  .nav-container{height:auto;flex-wrap:wrap;padding:12px 16px;gap:10px}
  .nav-brand{font-size:19px}
  .nav-brand i{font-size:18px}
  .main-nav{order:3;width:100%;flex-wrap:nowrap;justify-content:flex-start}
  .nav-link{font-size:14px;padding:7px 14px}
  .nav-actions{margin-left:auto}
}

/* 分页 Hero */
.page-hero{
  position:relative;
  background-size:cover;
  background-position:center;
  padding:120px 0 110px;
  display:flex;
  align-items:center;
  min-height:480px;
}
.page-hero .hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(13,27,42,.94) 15%,rgba(13,27,42,.78) 55%,rgba(27,45,69,.62));
}
.page-hero .container{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  background:rgba(244,162,97,.15);
  border:1px solid rgba(244,162,97,.3);
  padding:7px 20px;
  border-radius:40px;
  font-size:14px;
  font-weight:700;
  letter-spacing:1px;
  margin-bottom:22px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.65);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:rgba(255,255,255,.4)}
.page-hero h1{
  font-size:46px;
  line-height:1.25;
  color:#fff;
  font-weight:800;
  letter-spacing:1px;
  margin-bottom:18px;
}
.page-hero .hero-desc{
  font-size:18px;
  color:rgba(255,255,255,.85);
  max-width:620px;
  margin-bottom:34px;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
@media (max-width:768px){
  .page-hero{padding:80px 0;min-height:auto}
  .page-hero h1{font-size:30px}
  .page-hero .hero-desc{font-size:16px}
  .hero-actions .btn{width:100%}
}

/* 方法卡片 */
.method-card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.method-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-img{overflow:hidden;aspect-ratio:16/10;background:#e8edf3}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.method-card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:26px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-body .badge{width:max-content;margin-bottom:14px}
.card-body h3{font-size:20px;color:var(--primary);margin-bottom:10px;font-weight:800}
.card-body p{color:var(--muted);font-size:15px;line-height:1.75;margin-bottom:18px;flex:1}
.text-link{
  font-size:14px;
  font-weight:700;
  color:var(--accent-dark);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap .25s;
}
.text-link:hover{gap:10px;color:var(--primary)}

/* 深色流程区块 */
.section-dark{
  background-size:cover;
  background-position:center;
  background-attachment:fixed;
  position:relative;
  color:#fff;
}
.section-dark::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(10,20,35,.94),rgba(20,45,66,.88));
}
.section-dark .container{position:relative;z-index:2}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step-item{
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:20px;
  padding:30px 24px;
  transition:all .3s ease;
  position:relative;
}
.step-item:hover{
  background:rgba(255,255,255,.15);
  transform:translateY(-4px);
  border-color:rgba(244,162,97,.5);
}
.step-num{
  font-size:14px;
  font-weight:900;
  color:var(--accent);
  letter-spacing:2px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.step-num::after{
  content:"";
  flex:1;
  height:1px;
  background:rgba(244,162,97,.4);
}
.step-panel h3{font-size:18px;color:#fff;margin-bottom:10px;font-weight:800}
.step-panel p{font-size:14px;color:rgba(255,255,255,.75);line-height:1.7}
@media (max-width:1024px){.steps-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.steps-grid{grid-template-columns:1fr}}

/* 问题卡片 */
.issue-card{
  display:flex;
  gap:20px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  padding:20px;
  height:100%;
  transition:all .3s ease;
}
.issue-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.issue-card img{
  width:130px;
  height:130px;
  border-radius:var(--radius-sm);
  object-fit:cover;
  flex-shrink:0;
}
.issue-content{display:flex;flex-direction:column;gap:10px}
.issue-content h3{font-size:18px;color:var(--primary);font-weight:800}
.issue-content p{font-size:14px;color:var(--muted);line-height:1.65}
@media (max-width:768px){
  .issue-card{flex-direction:column}
  .issue-card img{width:100%;height:170px}
}

/* 安全面板 */
.security-panel{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  background:var(--white);
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-lg);
}
.security-content{padding:48px;display:flex;flex-direction:column;justify-content:center}
.security-content .section-tag{margin-bottom:12px}
.security-content h2{font-size:30px;color:var(--primary);font-weight:800;margin-bottom:18px;line-height:1.3}
.custom-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.custom-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  color:var(--text);
  line-height:1.6;
}
.custom-list li i{
  width:26px;
  height:26px;
  flex-shrink:0;
  background:rgba(42,157,143,.14);
  color:var(--cyan);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  margin-top:2px;
}
.security-img{min-height:320px;background:#e8edf3}
.security-img img{width:100%;height:100%;object-fit:cover}
@media (max-width:1024px){
  .security-panel{grid-template-columns:1fr}
  .security-content{padding:32px}
  .security-img{min-height:240px}
}

/* FAQ */
.accordion{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  overflow:hidden;
  margin:0 !important;
}
.accordion-item{
  background:var(--white);
  border-bottom:1px solid var(--border) !important;
}
.accordion-item:last-child{border-bottom:0 !important}
.accordion-title{
  font-size:17px !important;
  font-weight:700 !important;
  color:var(--text) !important;
  padding:22px 26px !important;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--white) !important;
  transition:background .3s ease;
  position:relative;
  border:0 !important;
}
.accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:14px;
  color:var(--accent-dark);
  transition:transform .3s ease;
}
.accordion-item.is-active .accordion-title::before{
  transform:rotate(180deg);
}
.accordion-item.is-active > .accordion-title{background:#fff8f2 !important}
.accordion-content{
  font-size:15px;
  color:var(--muted);
  padding:6px 26px 24px !important;
  line-height:1.8;
  background:var(--white);
  border:0 !important;
}

/* CTA */
.cta-section{
  background-size:cover;
  background-position:center;
  position:relative;
  padding:110px 0;
  text-align:center;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(13,27,42,.9),rgba(27,45,69,.8));
}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:38px;color:#fff;font-weight:800;margin-bottom:16px;letter-spacing:1px}
.cta-section p{font-size:18px;color:rgba(255,255,255,.82);margin-bottom:34px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
@media (max-width:768px){
  .cta-section{padding:70px 0}
  .cta-section h2{font-size:28px}
  .cta-actions .btn{width:100%}
}

/* 页脚 */
.site-footer{
  background:var(--primary);
  color:rgba(255,255,255,.7);
  padding:70px 0 0;
  border-top:3px solid var(--accent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 0.8fr 0.9fr;
  gap:48px;
  padding-bottom:50px;
}
.footer-brand h3{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:22px;
  font-weight:800;
  margin-bottom:16px;
}
.footer-brand h3 i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.footer-links h4,.footer-contact h4{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:1px;
}
.footer-links a{
  display:block;
  color:rgba(255,255,255,.65);
  font-size:14px;
  padding:6px 0;
  transition:color .25s,padding-left .25s;
}
.footer-links a:hover{color:var(--accent);padding-left:6px}
.footer-contact p{
  font-size:14px;
  color:rgba(255,255,255,.65);
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 0;
}
.footer-contact i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.45);
}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:768px){.footer-grid{grid-template-columns:1fr;gap:32px}}

/* 通用辅助 */
.grid-x{gap:24px}
.grid-x > .cell{flex:0 0 auto}
.medium-up-3 > .cell{width:calc(33.333% - 16px)}
.medium-up-2 > .cell{width:calc(50% - 12px)}
@media (max-width:1024px){
  .medium-up-3 > .cell{width:calc(50% - 12px)}
}
@media (max-width:768px){
  .medium-up-3 > .cell,.medium-up-2 > .cell{width:100%}
  .grid-x{gap:20px}
}

section[id]{scroll-margin-top:90px}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0B1325;
  --primary-2: #152238;
  --primary-3: #1D2E47;
  --accent: #D4A543;
  --accent-2: #E8C15A;
  --accent-3: #F0D488;
  --cyan: #2DD4BF;
  --bg: #080D16;
  --bg-2: #0E1726;
  --card-bg: #111C2E;
  --card-bg-2: #16263C;
  --border: rgba(255, 255, 255, 0.07);
  --border-2: rgba(255, 255, 255, 0.14);
  --text: #E9EEF5;
  --text-muted: #8B9AB0;
  --text-soft: #B8C4D6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 22px 48px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 74px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 19, 37, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(8, 13, 22, 0.95);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 20px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-logo .brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, #F5A623 60%, #FFD573 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B1325;
  font-size: 20px;
  box-shadow: 0 6px 18px rgba(212, 165, 67, 0.35);
}
.brand-logo .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-logo .brand-text strong {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text);
}
.brand-logo .brand-text small {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}
.nav-link:hover {
  color: var(--accent-2);
  background: rgba(212, 165, 67, 0.08);
}
.nav-link.active {
  color: var(--accent-2);
  font-weight: 600;
}
.nav-link.active::after {
  transform: scaleX(1);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.search-wrap {
  position: relative;
}
.search-wrap input {
  width: 200px;
  height: 38px;
  padding: 0 38px 0 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 14px;
  transition: var(--transition);
  outline: none;
}
.search-wrap input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.09);
  width: 230px;
}
.search-wrap input::placeholder { color: var(--text-muted); }
.search-wrap i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--text-muted);
  pointer-events: none;
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.mobile-toggle:hover { background: rgba(255, 255, 255, 0.12); }

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}
.mobile-menu.open { display: block; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu .nav-link {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 16px;
  border-bottom: 1px solid var(--border);
}
.mobile-menu .nav-link:last-child { border-bottom: none; }
.mobile-menu .nav-link:hover { background: rgba(255, 255, 255, 0.06); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #F0B73E);
  color: #0B1325;
  box-shadow: 0 6px 20px rgba(212, 165, 67, 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(212, 165, 67, 0.4);
  color: #0B1325;
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #F5A623);
  color: #0B1325;
  box-shadow: 0 8px 30px rgba(212, 165, 67, 0.35);
  padding: 14px 38px;
  font-size: 16px;
}
.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(212, 165, 67, 0.5);
  color: #0B1325;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-2);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: rgba(212, 165, 67, 0.06);
}
.btn-sm { padding: 7px 18px; font-size: 13px; }
.btn-lg { padding: 14px 36px; font-size: 16px; }

/* ===== 文章横幅 Hero ===== */
.article-banner {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 40px) 0 60px;
  overflow: hidden;
  background: var(--primary);
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 22, 0.82) 0%, rgba(8, 13, 22, 0.72) 50%, rgba(8, 13, 22, 0.92) 100%);
  z-index: 1;
}
.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 28px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-muted);
  font-weight: 500;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 10px; opacity: 0.6; }
.breadcrumb span { color: var(--accent-2); font-weight: 500; }
.banner-content h1 {
  font-size: clamp(28px, 4.5vw, 46px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--text);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  letter-spacing: 1px;
}
.banner-desc {
  font-size: 16px;
  color: var(--text-soft);
  max-width: 680px;
  margin: 0 auto 24px;
  line-height: 1.7;
  opacity: 0.85;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-muted);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.article-meta i { color: var(--accent); font-size: 13px; }

/* ===== 文章主体区域 ===== */
.article-section {
  position: relative;
  padding: 60px 0 30px;
  background: var(--bg);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}
.article-main {
  min-width: 0;
}
.article-body {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 50px 56px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  animation: fadeInUp 0.6s ease both;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 正文排版 */
.article-body h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  margin: 36px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--accent-2);
  margin: 28px 0 14px;
  line-height: 1.4;
}
.article-body p {
  margin-bottom: 18px;
  color: var(--text-soft);
  line-height: 1.85;
  font-size: 16px;
}
.article-body img {
  border-radius: 16px;
  margin: 24px 0;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.article-body ul, .article-body ol {
  margin: 0 0 20px 24px;
  color: var(--text-soft);
  line-height: 1.8;
}
.article-body li {
  margin-bottom: 8px;
  padding-left: 6px;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(212, 165, 67, 0.06);
  padding: 18px 24px;
  margin: 24px 0;
  border-radius: 0 14px 14px 0;
  color: var(--text-soft);
  font-style: italic;
}
.article-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover { color: var(--accent); }
.article-body code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--accent-2);
}
.article-body pre {
  background: #0A0F1A;
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  border: 1px solid var(--border);
  margin: 20px 0;
}
.article-body pre code { background: transparent; padding: 0; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}
.article-body th, .article-body td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}
.article-body th {
  background: var(--primary-2);
  font-weight: 700;
  color: var(--accent-2);
}
.article-body tr:nth-child(even) { background: rgba(255, 255, 255, 0.03); }

/* 标签区域 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(212, 165, 67, 0.1);
  border: 1px solid rgba(212, 165, 67, 0.25);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}
.tag:hover {
  background: rgba(212, 165, 67, 0.2);
  transform: translateY(-2px);
}
.tag i { font-size: 11px; }

/* 未找到样式 */
.not-found {
  text-align: center;
  padding: 80px 30px;
  background: var(--card-bg);
  border-radius: 20px;
  border: 1px solid var(--border);
}
.not-found i {
  font-size: 64px;
  color: var(--text-muted);
  margin-bottom: 24px;
  opacity: 0.5;
}
.not-found h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text);
}
.not-found p {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 16px;
}

/* ===== 侧边栏 ===== */
.article-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.panel-card {
  background: var(--card-bg);
  border-radius: 18px;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.panel-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-header h3 i {
  color: var(--accent);
  font-size: 16px;
}
.panel-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.panel-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.panel-list li:last-child { border-bottom: none; }
.panel-list li span {
  color: var(--text-muted);
  font-size: 13px;
}
.panel-list li em {
  font-style: normal;
  color: var(--text-soft);
  font-weight: 500;
  font-size: 14px;
}
.panel-list li .status-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
  font-weight: 600;
}
.panel-list li .status-online::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(45, 212, 191, 0.6);
}

/* 热门推荐 */
.side-post {
  display: flex;
  gap: 14px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.side-post:last-child { border-bottom: none; }
.side-post:hover { background: rgba(255, 255, 255, 0.03); }
.side-post img {
  width: 68px;
  height: 52px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.side-post h4 {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.side-post span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 70px 0 60px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-header {
  text-align: center;
  margin-bottom: 44px;
}
.section-header h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.section-header p {
  color: var(--text-muted);
  font-size: 15px;
}
.rel-card {
  display: block;
  background: var(--card-bg);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
}
.rel-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--border-2);
}
.rel-card-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.rel-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.rel-card:hover .rel-card-img img {
  transform: scale(1.05);
}
.rel-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 14px;
  border-radius: 20px;
  background: rgba(212, 165, 67, 0.92);
  color: #0B1325;
  font-size: 13px;
  font-weight: 700;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.rel-card-body {
  padding: 22px 24px;
}
.rel-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
  transition: var(--transition);
}
.rel-card:hover .rel-card-body h3 { color: var(--accent-2); }
.rel-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rel-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.rel-card:hover .rel-link {
  color: var(--accent);
  gap: 12px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 70px 0;
  background: var(--bg);
}
.faq-section .section-header h2 { color: var(--text); }
.faq-section .section-header p { color: var(--text-muted); }
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-2); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  background: transparent;
  transition: var(--transition);
}
.faq-question i {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
  color: var(--accent);
}
.faq-item.open .faq-question { color: var(--accent-2); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer p {
  padding: 0 26px 22px;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
  background: var(--primary);
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity: 0.3;
  z-index: 0;
}
.cta-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 19, 37, 0.85), rgba(11, 19, 37, 0.55));
  z-index: 1;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
}
.cta-inner h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.cta-inner p {
  color: var(--text-soft);
  font-size: 16px;
  margin-bottom: 30px;
  line-height: 1.7;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}
.footer-brand h3 {
  font-size: 22px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-weight: 800;
}
.footer-brand h3 i {
  color: var(--accent);
  font-size: 20px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 300px;
}
.footer-links h4,
.footer-contact h4 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  padding: 3px 0;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent-2);
  padding-left: 4px;
}
.footer-links a:hover::before { opacity: 1; }
.footer-contact p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i {
  color: var(--accent);
  font-size: 14px;
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: 13px;
  letter-spacing: 0.3px;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .panel-card {
    flex: 1;
    min-width: 280px;
  }
  .header-actions .search-wrap { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .article-banner { min-height: 320px; padding: calc(var(--header-h) + 30px) 0 40px; }
  .article-body { padding: 32px 24px; }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 19px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-section { padding: 60px 0; }
  .related-section { padding: 50px 0 40px; }
  .faq-section { padding: 50px 0; }
  .grid-x > .cell { margin-bottom: 20px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-banner { min-height: 280px; }
  .banner-content h1 { font-size: 26px; }
  .article-meta { gap: 10px; }
  .article-meta span { font-size: 12px; padding: 4px 10px; }
  .article-body { padding: 24px 18px; border-radius: 14px; }
  .article-tags { gap: 8px; }
  .tag { font-size: 12px; padding: 4px 10px; }
  .btn-accent { padding: 12px 28px; font-size: 15px; }
  .cta-inner h2 { font-size: 24px; }
  .faq-question { font-size: 15px; padding: 16px 18px; }
  .faq-answer p { padding: 0 18px 18px; font-size: 14px; }
  .panel-header { padding: 14px 16px; }
  .panel-list li { padding: 12px 16px; }
  .side-post { padding: 12px 16px; }
  .rel-card-body { padding: 18px 18px; }
  .rel-card-img { height: 170px; }
  .footer-bottom p { font-size: 12px; }
}

/* roulang page: category2 */
:root {
        --primary: #e8492d;
        --primary-dark: #c93a1f;
        --primary-light: #ff6b4a;
        --secondary: #f7b733;
        --accent: #1a73e8;
        --bg-dark: #0b0f1a;
        --bg-darker: #060a12;
        --bg-card: #141c2b;
        --bg-light: #f8f9fc;
        --text-light: #f0f2f5;
        --text-muted: #8b95a7;
        --text-dark: #1c2333;
        --border-dark: rgba(255, 255, 255, 0.08);
        --border-light: rgba(0, 0, 0, 0.08);
        --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
        --radius-md: 12px;
        --radius-lg: 20px;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }

    a:hover {
        color: var(--primary-light);
    }

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

    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header / Navigation ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(6, 10, 18, 0.92);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-dark);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 24px;
        max-width: 1280px;
        margin: 0 auto;
        gap: 24px;
    }

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

    .logo-icon {
        width: 42px;
        height: 42px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: #fff;
        box-shadow: 0 4px 16px rgba(232, 73, 45, 0.4);
    }

    .logo-text {
        font-size: 22px;
        font-weight: 700;
        letter-spacing: 0.5px;
        color: #fff;
        white-space: nowrap;
    }

    .logo-text span {
        color: var(--primary-light);
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        justify-content: center;
    }

    .nav-link {
        padding: 10px 22px;
        border-radius: 50px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        transition: var(--transition);
        white-space: nowrap;
        position: relative;
    }

    .nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.08);
    }

    .nav-link.active {
        color: #fff;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        box-shadow: 0 4px 20px rgba(232, 73, 45, 0.35);
    }

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

    .header-search {
        position: relative;
    }

    .header-search input {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid var(--border-dark);
        border-radius: 50px;
        padding: 8px 16px 8px 38px;
        color: #fff;
        font-size: 14px;
        width: 160px;
        outline: none;
        transition: var(--transition);
    }

    .header-search input::placeholder {
        color: var(--text-muted);
    }

    .header-search input:focus {
        width: 200px;
        border-color: var(--primary);
        background: rgba(255, 255, 255, 0.12);
    }

    .header-search i {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        font-size: 14px;
    }

    .btn-header {
        padding: 10px 24px;
        border-radius: 50px;
        font-size: 14px;
        font-weight: 600;
        transition: var(--transition);
        white-space: nowrap;
        border: none;
        cursor: pointer;
    }

    .btn-header-primary {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        box-shadow: 0 4px 16px rgba(232, 73, 45, 0.3);
    }

    .btn-header-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(232, 73, 45, 0.5);
        color: #fff;
    }

    /* ===== Page Hero / Banner ===== */
    .page-hero {
        position: relative;
        min-height: 420px;
        display: flex;
        align-items: center;
        background: linear-gradient(135deg, rgba(6, 10, 18, 0.9), rgba(20, 28, 43, 0.8)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        padding: 80px 0;
        overflow: hidden;
    }

    .page-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(ellipse at 30% 50%, rgba(232, 73, 45, 0.2), transparent 60%);
    }

    .page-hero .container {
        position: relative;
        z-index: 1;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(232, 73, 45, 0.15);
        border: 1px solid rgba(232, 73, 45, 0.3);
        border-radius: 50px;
        padding: 6px 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--primary-light);
        margin-bottom: 24px;
        letter-spacing: 1px;
    }

    .hero-badge i {
        font-size: 12px;
    }

    .page-hero h1 {
        font-size: 48px;
        font-weight: 800;
        line-height: 1.2;
        margin-bottom: 18px;
        background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.8));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .page-hero h1 span {
        color: var(--primary-light);
        -webkit-text-fill-color: var(--primary-light);
    }

    .hero-desc {
        font-size: 17px;
        color: var(--text-muted);
        max-width: 640px;
        margin-bottom: 32px;
        line-height: 1.8;
    }

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

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 32px;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 600;
        transition: var(--transition);
        cursor: pointer;
        border: none;
        line-height: 1;
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        box-shadow: 0 4px 24px rgba(232, 73, 45, 0.35);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 32px rgba(232, 73, 45, 0.5);
        color: #fff;
    }

    .btn-outline-light {
        background: transparent;
        color: #fff;
        border: 1.5px solid rgba(255, 255, 255, 0.3);
    }

    .btn-outline-light:hover {
        border-color: var(--primary-light);
        color: var(--primary-light);
        background: rgba(232, 73, 45, 0.1);
    }

    /* ===== Section common ===== */
    .section {
        padding: 90px 0;
        position: relative;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--primary-light);
        background: rgba(232, 73, 45, 0.12);
        padding: 6px 16px;
        border-radius: 50px;
        margin-bottom: 16px;
    }

    .section-title {
        font-size: 36px;
        font-weight: 700;
        line-height: 1.3;
        margin-bottom: 16px;
        color: #fff;
    }

    .section-desc {
        font-size: 16px;
        color: var(--text-muted);
        max-width: 680px;
        line-height: 1.7;
        margin-bottom: 48px;
    }

    /* ===== Security Features ===== */
    .security-section {
        background: var(--bg-dark);
    }

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

    .security-card {
        background: var(--bg-card);
        border: 1px solid var(--border-dark);
        border-radius: var(--radius-md);
        padding: 32px 28px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }

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

    .security-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-md);
        border-color: rgba(232, 73, 45, 0.3);
    }

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

    .security-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        background: linear-gradient(135deg, rgba(232, 73, 45, 0.15), rgba(247, 183, 51, 0.15));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        color: var(--primary-light);
        margin-bottom: 20px;
    }

    .security-card h3 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 12px;
        color: #fff;
    }

    .security-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 0;
    }

    /* ===== Defense System ===== */
    .defense-section {
        background: linear-gradient(180deg, var(--bg-dark), var(--bg-darker));
    }

    .defense-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .defense-visual {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }

    .defense-visual img {
        width: 100%;
        min-height: 400px;
        object-fit: cover;
    }

    .defense-visual::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 40%, rgba(6, 10, 18, 0.8));
    }

    .defense-content {
        position: relative;
    }

    .defense-list {
        list-style: none;
        padding: 0;
        margin: 0 0 32px;
    }

    .defense-list li {
        display: flex;
        align-items: flex-start;
        gap: 16px;
        padding: 14px 0;
        border-bottom: 1px solid var(--border-dark);
    }

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

    .defense-list .icon {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: rgba(26, 115, 232, 0.15);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--accent);
        font-size: 14px;
        flex-shrink: 0;
        margin-top: 2px;
    }

    .defense-list .content h4 {
        font-size: 16px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 4px;
    }

    .defense-list .content p {
        font-size: 14px;
        color: var(--text-muted);
        margin: 0;
        line-height: 1.6;
    }

    /* ===== Stats ===== */
    .stats-section {
        background: linear-gradient(135deg, rgba(232, 73, 45, 0.08), rgba(26, 115, 232, 0.06)), var(--bg-darker);
        padding: 70px 0;
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        text-align: center;
    }

    .stat-item {
        padding: 30px 20px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-dark);
        transition: var(--transition);
    }

    .stat-item:hover {
        transform: translateY(-4px);
        border-color: rgba(232, 73, 45, 0.3);
    }

    .stat-number {
        font-size: 42px;
        font-weight: 800;
        background: linear-gradient(135deg, var(--primary-light), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 15px;
        color: var(--text-muted);
        font-weight: 500;
    }

    /* ===== Timeline ===== */
    .timeline-section {
        background: var(--bg-dark);
    }

    .timeline {
        position: relative;
        max-width: 800px;
        margin: 0 auto;
        padding: 20px 0;
    }

    .timeline::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 2px;
        background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
        transform: translateX(-50%);
    }

    .timeline-item {
        display: flex;
        justify-content: flex-end;
        padding: 24px 0;
        position: relative;
        width: 50%;
        left: 0;
    }

    .timeline-item:nth-child(even) {
        align-self: flex-end;
        left: 50%;
        justify-content: flex-start;
    }

    .timeline-item::before {
        content: '';
        position: absolute;
        width: 14px;
        height: 14px;
        background: var(--primary-light);
        border: 3px solid var(--bg-dark);
        border-radius: 50%;
        box-shadow: 0 0 0 4px rgba(232, 73, 45, 0.3);
        top: 32px;
        right: -7px;
        z-index: 2;
    }

    .timeline-item:nth-child(even)::before {
        left: -7px;
        right: auto;
    }

    .timeline-content {
        background: var(--bg-card);
        border: 1px solid var(--border-dark);
        border-radius: var(--radius-md);
        padding: 24px;
        margin: 0 24px;
        width: calc(100% - 48px);
        transition: var(--transition);
    }

    .timeline-content:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-sm);
    }

    .timeline-step {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary-light);
        background: rgba(232, 73, 45, 0.1);
        padding: 4px 14px;
        border-radius: 50px;
        margin-bottom: 12px;
    }

    .timeline-content h3 {
        font-size: 17px;
        color: #fff;
        margin-bottom: 10px;
    }

    .timeline-content p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
        margin: 0;
    }

    /* ===== Security Tools ===== */
    .tools-section {
        background: var(--bg-darker);
    }

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

    .tool-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-dark);
        padding: 36px 32px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }

    .tool-card::after {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 80px;
        height: 80px;
        background: radial-gradient(circle, rgba(232, 73, 45, 0.15), transparent 70%);
        border-radius: 50%;
        transform: translate(30px, -30px);
    }

    .tool-card:hover {
        transform: translateY(-8px);
        border-color: rgba(232, 73, 45, 0.3);
        box-shadow: var(--shadow-md);
    }

    .tool-header {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-bottom: 20px;
    }

    .tool-header .icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    .tool-header .icon.t-blue {
        background: rgba(26, 115, 232, 0.15);
        color: var(--accent);
    }

    .tool-header .icon.t-orange {
        background: rgba(232, 73, 45, 0.15);
        color: var(--primary-light);
    }

    .tool-header .icon.t-green {
        background: rgba(46, 160, 67, 0.15);
        color: #2ea043;
    }

    .tool-header h3 {
        font-size: 18px;
        font-weight: 600;
        color: #fff;
        margin: 0;
    }

    .tool-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 16px;
    }

    .tag {
        font-size: 12px;
        padding: 4px 12px;
        border-radius: 50px;
        background: rgba(255, 255, 255, 0.06);
        color: var(--text-muted);
        border: 1px solid var(--border-dark);
        transition: var(--transition);
    }

    .tag:hover {
        border-color: var(--primary);
        color: var(--primary-light);
    }

    .tool-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .tool-link {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary-light);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: var(--transition);
    }

    .tool-link:hover {
        gap: 10px;
        color: #fff;
    }

    /* ===== Notice / Alerts ===== */
    .notice-section {
        background: var(--bg-dark);
    }

    .notice-list {
        max-width: 900px;
        margin: 0 auto;
    }

    .notice-item {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 20px 24px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        border: 1px solid var(--border-dark);
        transition: var(--transition);
        cursor: pointer;
    }

    .notice-item:hover {
        transform: translateX(8px);
        border-color: rgba(232, 73, 45, 0.3);
        box-shadow: var(--shadow-sm);
    }

    .notice-type {
        flex-shrink: 0;
        padding: 6px 16px;
        font-size: 12px;
        font-weight: 600;
        border-radius: 50px;
        letter-spacing: 1px;
    }

    .notice-type.urgent {
        background: rgba(232, 73, 45, 0.15);
        color: var(--primary-light);
    }

    .notice-type.important {
        background: rgba(247, 183, 51, 0.15);
        color: var(--secondary);
    }

    .notice-type.normal {
        background: rgba(26, 115, 232, 0.15);
        color: var(--accent);
    }

    .notice-content h4 {
        font-size: 15px;
        font-weight: 500;
        color: #fff;
        margin-bottom: 4px;
    }

    .notice-content p {
        font-size: 13px;
        color: var(--text-muted);
        margin: 0;
    }

    .notice-date {
        margin-left: auto;
        font-size: 13px;
        color: var(--text-muted);
        flex-shrink: 0;
    }

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

    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border-dark);
        border-radius: var(--radius-md);
        margin-bottom: 14px;
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(232, 73, 45, 0.3);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 500;
        color: #fff;
        transition: var(--transition);
    }

    .faq-question:hover {
        color: var(--primary-light);
    }

    .faq-question .icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: rgba(232, 73, 45, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        color: var(--primary-light);
        transition: var(--transition);
        flex-shrink: 0;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        padding: 0 24px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
    }

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

    /* ===== CTA Section ===== */
    .cta-section {
        background: linear-gradient(135deg, rgba(232, 73, 45, 0.2), rgba(26, 115, 232, 0.1)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        padding: 90px 0;
        position: relative;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(6, 10, 18, 0.85), rgba(20, 28, 43, 0.9));
    }

    .cta-inner {
        position: relative;
        z-index: 1;
        text-align: center;
        max-width: 640px;
        margin: 0 auto;
    }

    .cta-inner h2 {
        font-size: 38px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 16px;
    }

    .cta-inner p {
        font-size: 16px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 32px;
    }

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

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-darker);
        border-top: 1px solid var(--border-dark);
        padding: 70px 0 30px;
    }

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

    .footer-brand h3 {
        font-size: 22px;
        color: #fff;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .footer-brand h3 i {
        color: var(--primary-light);
    }

    .footer-brand p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        max-width: 340px;
    }

    .footer-links h4,
    .footer-contact h4 {
        font-size: 16px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 16px;
    }

    .footer-links a {
        display: block;
        font-size: 14px;
        color: var(--text-muted);
        padding: 6px 0;
        transition: var(--transition);
    }

    .footer-links a:hover {
        color: var(--primary-light);
        padding-left: 8px;
    }

    .footer-contact p {
        font-size: 14px;
        color: var(--text-muted);
        padding: 6px 0;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .footer-contact p i {
        color: var(--primary-light);
        width: 16px;
    }

    .footer-bottom {
        border-top: 1px solid var(--border-dark);
        padding-top: 24px;
        text-align: center;
    }

    .footer-bottom p {
        font-size: 13px;
        color: var(--text-muted);
        margin: 0;
    }

    /* ===== Responsive ===== */
    @media screen and (max-width: 1024px) {
        .security-grid {
            grid-template-columns: repeat(2, 1fr);
        }

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

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

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

        .page-hero h1 {
            font-size: 38px;
        }

        .header-search input {
            display: none;
        }

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

    @media screen and (max-width: 768px) {
        .header-inner {
            flex-direction: column;
            gap: 12px;
            padding: 16px;
        }

        .main-nav {
            order: 3;
            width: 100%;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            gap: 4px;
            padding-bottom: 4px;
        }

        .nav-link {
            padding: 8px 16px;
            font-size: 14px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-actions {
            position: absolute;
            top: 16px;
            right: 16px;
        }

        .btn-header {
            padding: 8px 16px;
            font-size: 13px;
        }

        .section {
            padding: 60px 0;
        }

        .section-title {
            font-size: 28px;
        }

        .page-hero {
            min-height: 360px;
            padding: 60px 0;
        }

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

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

        .timeline::before {
            left: 8px;
        }

        .timeline-item,
        .timeline-item:nth-child(even) {
            width: 100%;
            left: 0;
            justify-content: flex-start;
            padding-left: 36px;
        }

        .timeline-item::before,
        .timeline-item:nth-child(even)::before {
            left: 2px;
            right: auto;
        }

        .timeline-content {
            margin: 0;
            width: 100%;
        }

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

        .notice-item {
            flex-wrap: wrap;
            gap: 12px;
        }

        .notice-date {
            margin-left: 0;
        }

        .cta-inner h2 {
            font-size: 30px;
        }
    }

    @media screen and (max-width: 520px) {
        .security-grid,
        .stats-grid,
        .tools-grid {
            grid-template-columns: 1fr;
        }

        .page-hero h1 {
            font-size: 26px;
        }

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

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

        .header-search {
            display: none;
        }

        .logo-text {
            font-size: 18px;
        }

        .footer-contact p {
            font-size: 13px;
        }
    }

    /* Focus styles */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
        outline: 2px solid var(--primary-light);
        outline-offset: 3px;
        border-radius: 4px;
    }