/* roulang page: index */
:root {
  --color-bg: #081422;
  --color-bg-2: #0D2137;
  --color-primary: #0D2137;
  --color-accent: #7BC96F;
  --color-accent-2: #38BDF8;
  --color-text: #EAF2FA;
  --color-text-sub: #94A9C2;
  --color-border: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.06);
  --color-card-border: rgba(255,255,255,0.12);
  --radius-card: 20px;
  --radius-btn: 12px;
  --radius-pill: 999px;
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.25), 0 0 0 1px rgba(123,201,111,0.25);
  --spacing-section: clamp(4.5rem, 8vw, 7rem);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "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-stack);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--color-text-sub); text-decoration: none; transition: color 0.3s ease; }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
button { cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--spacing-section) 0; position: relative; }
.section-alt { background: var(--color-bg-2); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto clamp(2.5rem, 5vw, 4rem); }
.section-head h2 { font-size: clamp(2rem, 3.5vw, 2.75rem); font-weight: 700; line-height: 1.25; margin-bottom: 14px; }
.section-head p { font-size: 1.125rem; color: var(--color-text-sub); line-height: 1.6; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  background: rgba(8,20,34,0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 1.125rem; color: var(--color-text);
  flex-shrink: 0;
}
.logo:hover { color: var(--color-text); }
.logo-mark { width: 32px; height: 32px; flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 40px; }
.main-nav a {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-sub);
  padding: 6px 0;
  line-height: 1.2;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 50%; bottom: -4px;
  width: 20px; height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  transform: translateX(-50%) scaleX(0);
  transition: transform 0.3s ease;
}
.main-nav a:hover { color: var(--color-text); }
.main-nav a:hover::after { transform: translateX(-50%) scaleX(1); }
.main-nav a.active { color: var(--color-text); }
.main-nav a.active::after { transform: translateX(-50%) scaleX(1); }
.header-cta {
  font-size: 0.9375rem; font-weight: 600;
  color: var(--color-accent);
  border: 1px solid rgba(123,201,111,0.35);
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.header-cta:hover {
  background: rgba(123,201,111,0.12);
  color: var(--color-accent);
  border-color: rgba(123,201,111,0.6);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px; height: 44px;
  background: transparent;
  border: none;
  padding: 8px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg .bg-img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(8,20,34,0.9) 0%, rgba(8,20,34,0.65) 60%, rgba(8,20,34,0.5) 100%);
}
.hero-grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}
.hero-content { position: relative; z-index: 2; max-width: 680px; padding: 80px 0 80px; }
.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-content h1 .highlight { color: var(--color-accent); }
.hero-sub {
  font-size: 1.25rem;
  color: #B8C7DC;
  line-height: 1.65;
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2.25rem;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  transition: all 0.3s ease;
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, #7BC96F 0%, #38BDF8 100%);
  color: var(--color-bg);
  box-shadow: 0 0 24px rgba(123,201,111,0.35), 0 4px 16px rgba(56,189,248,0.2);
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(123,201,111,0.45), 0 6px 20px rgba(56,189,248,0.3);
  transform: translateY(-2px);
  color: var(--color-bg);
}
.btn-primary:active { transform: scale(0.97); }
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(123,201,111,0.25), 0 0 24px rgba(123,201,111,0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: #fff;
}
.btn-block { width: 100%; }
.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
}
.hero-stats .stat-item { text-align: left; }
.hero-stats .stat-num {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}
.hero-stats .stat-label {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin-top: 4px;
}

/* ===== 三步上手 ===== */
.steps-section { background: var(--color-bg); position: relative; }
.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  position: relative;
}
.step-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 40px 32px 36px;
  position: relative;
  transition: all 0.3s ease;
}
.step-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(123,201,111,0.4);
  transform: translateY(-4px);
}
.step-num {
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(123,201,111,0.35);
  line-height: 1;
  display: block;
  margin-bottom: 20px;
  transition: color 0.3s ease;
}
.step-card:hover .step-num { color: var(--color-accent); }
.step-icon {
  width: 48px; height: 48px;
  margin-bottom: 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: rgba(123,201,111,0.1);
  border: 1px solid rgba(123,201,111,0.2);
}
.step-icon svg { width: 24px; height: 24px; stroke: var(--color-accent); }
.step-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 10px; }
.step-card p { font-size: 0.9375rem; color: var(--color-text-sub); line-height: 1.65; }
.step-connector {
  position: absolute;
  top: 50%;
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(123,201,111,0.4), transparent);
}
.step-connector.c1 { left: calc(33.333% - 12px); }
.step-connector.c2 { left: calc(66.666% - 12px); }

/* ===== 案例证明 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
.case-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-card-border);
  transition: all 0.3s ease;
  display: block;
  min-height: 320px;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(123,201,111,0.3);
}
.case-card .case-img { width: 100%; height: 100%; position: absolute; inset: 0; }
.case-card .case-img img { width: 100%; height: 100%; object-fit: cover; }
.case-card .case-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,20,34,0.92) 0%, rgba(8,20,34,0.35) 55%, rgba(8,20,34,0.1) 100%);
}
.case-card .case-body {
  position: relative; z-index: 2;
  display: flex; flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  padding: 28px;
}
.case-tag {
  align-self: flex-start;
  background: rgba(123,201,111,0.12);
  border: 1px solid rgba(123,201,111,0.3);
  color: var(--color-accent);
  font-size: 0.75rem;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}
.case-card h3 { font-size: 1.375rem; font-weight: 600; margin-bottom: 8px; color: var(--color-text); }
.case-card p { font-size: 0.9375rem; color: #B8C7DC; margin-bottom: 14px; line-height: 1.6; }
.case-metrics { display: flex; gap: 24px; }
.case-metrics .metric { text-align: left; }
.case-metrics .metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}
.case-metrics .metric-label { font-size: 0.8125rem; color: var(--color-text-sub); }
.case-card-small { min-height: 240px; margin-bottom: 24px; }
.case-card-small:last-child { margin-bottom: 0; }
.case-card-small .case-body { padding: 22px; }
.case-card-small h3 { font-size: 1.125rem; }
.case-card-small p { font-size: 0.875rem; margin-bottom: 10px; }
.case-card-small .metric-value { font-size: 1.25rem; }
.cases-side { display: flex; flex-direction: column; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 16px;
  margin-bottom: 16px;
  background: rgba(255,255,255,0.03);
  transition: all 0.3s ease;
  overflow: hidden;
}
.faq-item:hover { border-color: rgba(123,201,111,0.3); }
.faq-item.open { border-color: rgba(123,201,111,0.4); background: rgba(123,201,111,0.04); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 500;
  padding: 22px 24px;
  text-align: left;
  gap: 16px;
  transition: color 0.3s ease;
}
.faq-question:hover { color: var(--color-accent); }
.faq-item.open .faq-question { color: var(--color-accent); }
.faq-icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
  position: relative;
  transition: transform 0.4s ease;
  display: flex; align-items: center; justify-content: center;
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after { width: 2px; height: 14px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  color: var(--color-text-sub);
  font-size: 0.95rem;
  line-height: 1.7;
  border-left: 2px solid var(--color-accent);
  margin-left: 24px;
  padding-left: 16px;
}
.faq-item.open .faq-answer { max-height: 300px; }

/* ===== 资讯 ===== */
.news-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.news-featured {
  display: block;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-card-border);
  background: var(--color-card-bg);
  backdrop-filter: blur(18px);
  transition: all 0.3s ease;
}
.news-featured:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.news-featured .news-thumb {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.news-featured .news-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,20,34,0.5), transparent);
}
.news-featured .news-body { padding: 24px; }
.news-featured .news-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 12px 0 10px;
  color: var(--color-text);
  line-height: 1.4;
}
.news-featured .news-body p {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: block;
  padding: 18px 4px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all 0.3s ease;
}
.news-item:first-child { padding-top: 0; }
.news-item:last-child { border-bottom: none; }
.news-item:hover { padding-left: 12px; }
.news-item .news-item-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.news-item h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.3s ease;
  line-height: 1.4;
}
.news-item:hover h4 { color: var(--color-accent); }
.news-item .news-item-summary {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-date { font-size: 0.8rem; color: var(--color-text-sub); }
.news-item .news-date { display: block; margin-top: 4px; }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  background: rgba(123,201,111,0.12);
  border: 1px solid rgba(123,201,111,0.3);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-sub);
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: var(--radius-card);
  background: rgba(255,255,255,0.02);
}
.news-empty .empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--color-text-sub);
}
.news-empty p { font-size: 1rem; }

/* ===== CTA 表单 ===== */
.cta-section { background: var(--color-bg-2); position: relative; }
.cta-wrapper {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: center;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 48px;
}
.cta-form h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 700; margin-bottom: 8px; }
.cta-form > p { color: var(--color-text-sub); margin-bottom: 28px; }
.cta-form form { display: flex; flex-direction: column; gap: 16px; }
.form-input {
  width: 100%;
  height: 48px;
  background: rgba(8,20,34,0.5);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-btn);
  padding: 0 16px;
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: all 0.3s ease;
  outline: none;
}
.form-input::placeholder { color: #6B7F98; }
.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(123,201,111,0.15);
  background: rgba(8,20,34,0.7);
}
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237BC96F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}
select.form-input option { background: var(--color-bg); color: var(--color-text); }
.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-sub);
}
.form-check a { color: var(--color-accent); text-decoration: underline; }
.cta-info { padding-left: 24px; border-left: 1px solid var(--color-border); }
.cta-info h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 20px; }
.cta-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--color-text-sub);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.cta-info-list li svg {
  width: 20px; height: 20px;
  stroke: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.cta-info-list li strong { color: var(--color-text); font-weight: 500; }

/* ===== 页脚 ===== */
.site-footer {
  background: #050D16;
  border-top: 1px solid var(--color-border);
  padding-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin-bottom: 10px;
  transition: color 0.3s ease;
}
.footer-col a:hover { color: var(--color-accent); }
.footer-contact-list li {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact-list li svg { width: 16px; height: 16px; stroke: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.8125rem; color: var(--color-text-sub); }

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .steps-grid { gap: 16px; }
  .step-card { padding: 30px 20px 28px; }
  .step-connector { display: none; }
  .cases-grid { grid-template-columns: 1fr 1fr; }
  .case-card { min-height: 260px; }
  .cta-wrapper { padding: 36px; gap: 32px; }
}
@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(8,20,34,0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
  }
  .main-nav.open { max-height: 360px; }
  .main-nav a {
    font-size: 1.5rem;
    font-weight: 400;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    line-height: 2;
  }
  .main-nav a::after { display: none; }
  .main-nav a.active { color: var(--color-accent); }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .hero-content { padding: 60px 0 60px; }
  .hero-stats { gap: 32px; }
  .steps-grid { grid-template-columns: 1fr; gap: 16px; }
  .step-card { padding: 32px 24px; }
  .step-num { font-size: 2.75rem; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-card { min-height: 280px; }
  .cases-side { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .case-card-small { margin-bottom: 0; min-height: 200px; }
  .news-layout { grid-template-columns: 1fr; }
  .cta-wrapper { grid-template-columns: 1fr; padding: 32px 24px; }
  .cta-info { padding-left: 0; border-left: none; border-top: 1px solid var(--color-border); padding-top: 28px; margin-top: 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .container { padding: 0 20px; }
  .hero-content { padding: 40px 0 48px; }
  .hero-content h1 { font-size: 2.25rem; }
  .hero-sub { font-size: 1.0625rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 20px; }
  .hero-stats .stat-num { font-size: 1.375rem; }
  .cases-side { grid-template-columns: 1fr; }
  .case-card-small { min-height: 220px; }
  .case-card .case-body { padding: 20px; }
  .case-card h3 { font-size: 1.125rem; }
  .faq-question { font-size: 0.9375rem; padding: 18px 16px; }
  .faq-answer-inner { padding: 0 16px 18px; margin-left: 16px; padding-left: 12px; }
  .btn { padding: 0.75rem 1.5rem; }
  .cta-wrapper { padding: 28px 20px; }
  .footer-grid { padding-bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: article */
:root {
  --color-bg: #081422;
  --color-bg-2: #0D2137;
  --color-primary: #0D2137;
  --color-accent: #7BC96F;
  --color-accent-2: #38BDF8;
  --color-text: #EAF2FA;
  --color-text-sub: #94A9C2;
  --color-border: rgba(255,255,255,0.10);
  --color-card-bg: rgba(255,255,255,0.06);
  --color-card-border: rgba(255,255,255,0.12);
  --radius-card: 20px;
  --radius-btn: 12px;
  --radius-img: 14px;
  --radius-tag: 999px;
  --shadow-glow: 0 0 24px rgba(123,201,111,0.35), 0 4px 16px rgba(56,189,248,0.2);
  --space-section: clamp(4.5rem, 8vw, 7rem);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "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-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }

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

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(8,20,34,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}
.logo-mark { width: 36px; height: 36px; flex-shrink: 0; }
.logo:hover { color: var(--color-accent); }
.main-nav { display: flex; align-items: center; gap: 40px; }
.main-nav a {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #B8C7DC;
  padding: 8px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.main-nav a:hover { color: var(--color-accent); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--color-text); }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 20px;
  height: 4px;
  border-radius: 999px;
  background: var(--color-accent);
  box-shadow: 0 0 12px rgba(123,201,111,0.5);
}
.header-cta {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--color-accent);
  padding: 8px 18px;
  border: 1px solid rgba(123,201,111,0.4);
  border-radius: var(--radius-btn);
  transition: all 0.3s ease;
  white-space: nowrap;
  background: rgba(123,201,111,0.06);
}
.header-cta:hover {
  background: rgba(123,201,111,0.14);
  border-color: var(--color-accent);
  box-shadow: 0 0 18px rgba(123,201,111,0.2);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 面包屑 ===== */
.article-crumb {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(13,33,55,0.3);
}
.crumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  overflow-x: auto;
  white-space: nowrap;
}
.crumb-inner a { color: var(--color-text-sub); }
.crumb-inner a:hover { color: var(--color-accent); }
.crumb-inner .sep { color: rgba(255,255,255,0.25); }
.crumb-inner .current { color: var(--color-text); }

/* ===== 文章区 ===== */
.article-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 4.5rem) 24px 0;
}
.article-head {
  margin-bottom: 40px;
}
.article-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(123,201,111,0.12);
  border: 1px solid rgba(123,201,111,0.3);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.article-head h1 {
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-sub);
  font-size: 0.875rem;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item svg { width: 15px; height: 15px; stroke: var(--color-text-sub); }
.meta-item .dot {
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* ===== 正文 ===== */
.article-body {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #C7D3E0;
  word-break: break-word;
}
.article-body p {
  margin-bottom: 1.5rem;
}
.article-body h2 {
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 2.5rem 0 1.25rem;
  padding-left: 16px;
  border-left: 3px solid var(--color-accent);
  line-height: 1.3;
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 2rem 0 1rem;
  line-height: 1.4;
}
.article-body blockquote {
  border-left: 3px solid var(--color-accent);
  background: rgba(123,201,111,0.06);
  padding: 18px 24px;
  margin: 1.5rem 0;
  border-radius: 0 14px 14px 0;
  color: #B8C7DC;
  font-style: normal;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body ul,
.article-body ol {
  margin: 1.5rem 0;
  padding-left: 0;
}
.article-body ul li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}
.article-body ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(123,201,111,0.4);
}
.article-body ol { counter-reset: art-ol; }
.article-body ol li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 10px;
  counter-increment: art-ol;
}
.article-body ol li::before {
  content: counter(art-ol);
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(123,201,111,0.15);
  border: 1px solid rgba(123,201,111,0.4);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-body img {
  border-radius: var(--radius-img);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  margin: 1.5rem 0;
}
.article-body a {
  color: var(--color-accent-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(56,189,248,0.25);
  transition: all 0.2s ease;
}
.article-body a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  border-radius: 12px;
  overflow: hidden;
}
.article-body th,
.article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.article-body th {
  background: rgba(255,255,255,0.05);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}
.article-body tr:last-child td { border-bottom: none; }
.article-body code {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.85em;
  color: var(--color-accent);
}
.article-body pre {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 20px;
  margin: 1.5rem 0;
  overflow-x: auto;
}
.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: #C7D3E0;
  font-size: 0.875rem;
  line-height: 1.7;
}

/* ===== 文章底部 ===== */
.article-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 2rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  background: rgba(123,201,111,0.1);
  border: 1px solid rgba(123,201,111,0.28);
  border-radius: 999px;
  padding: 5px 14px;
  transition: all 0.25s ease;
}
.tag:hover {
  background: rgba(123,201,111,0.18);
  border-color: var(--color-accent);
}
.article-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.pager-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  padding: 10px 0;
  transition: color 0.2s ease;
  max-width: 45%;
}
.pager-link:hover { color: var(--color-accent); }
.pager-link .arrow { font-size: 1.1rem; line-height: 1; }
.pager-back {
  font-size: 0.9375rem;
  color: var(--color-accent-2);
  padding: 8px 18px;
  border: 1px solid rgba(56,189,248,0.3);
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.pager-back:hover {
  background: rgba(56,189,248,0.08);
  border-color: var(--color-accent-2);
  color: var(--color-accent-2);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: var(--space-section) 0 0;
}
.section-head {
  max-width: 720px;
  margin: 0 auto 3rem;
  text-align: center;
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}
.section-title span { color: var(--color-accent); }
.section-sub {
  font-size: 1.125rem;
  color: var(--color-text-sub);
  margin-top: 12px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
  border-color: rgba(123,201,111,0.4);
}
.related-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(135deg, #0D2137, #081422);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.04); }
.related-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-info .tag {
  align-self: flex-start;
  margin-bottom: 12px;
}
.related-info h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-info p {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.read-more {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}
.related-card:hover .read-more { gap: 10px; }

/* ===== CTA ===== */
.article-cta {
  padding: var(--space-section) 0;
}
.cta-box {
  background: linear-gradient(135deg, rgba(13,33,55,0.9), rgba(8,20,34,0.95));
  border: 1px solid rgba(123,201,111,0.2);
  border-radius: 24px;
  padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(123,201,111,0.12), transparent 50%);
  pointer-events: none;
}
.cta-box h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  position: relative;
}
.cta-box p {
  font-size: 1.0625rem;
  color: var(--color-text-sub);
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2.25rem;
  border-radius: var(--radius-btn);
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #7BC96F 0%, #38BDF8 100%);
  color: #081422;
  box-shadow: var(--shadow-glow);
  position: relative;
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(123,201,111,0.45), 0 6px 20px rgba(56,189,248,0.3);
  transform: translateY(-2px);
}
.btn-primary:active { transform: scale(0.97); }
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(123,201,111,0.25), var(--shadow-glow);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(123,201,111,0.06);
}

/* ===== 空状态 ===== */
.article-empty {
  max-width: 640px;
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 8rem) 24px;
  text-align: center;
}
.empty-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.03);
}
.empty-icon svg { width: 32px; height: 32px; stroke: var(--color-text-sub); }
.article-empty h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}
.article-empty p {
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #050D16;
  border-top: 1px solid var(--color-border);
  padding: clamp(3.5rem, 6vw, 5rem) 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 3rem;
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  max-width: 360px;
  line-height: 1.75;
}
.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
}
.footer-col a:hover { color: var(--color-accent); }
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
}
.footer-contact-list svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(8,20,34,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px 32px;
    gap: 4px;
    display: none;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    font-size: 1.5rem;
    font-weight: 400;
    padding: 12px 0;
    width: 100%;
  }
  .main-nav a.active::after { left: 0; transform: none; width: 24px; }
  .header-inner { padding: 0 20px; }
  .header-cta { padding: 7px 14px; font-size: 0.85rem; }
  .related-grid { grid-template-columns: 1fr; gap: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .article-wrap { padding: 3rem 20px 0; }
  .crumb-inner { padding: 14px 20px; }
  .article-pager { flex-direction: column; align-items: stretch; }
  .pager-link { max-width: 100%; }
  .pager-back { text-align: center; }
}
@media (max-width: 480px) {
  .header-cta { display: none; }
  .logo { font-size: 1rem; }
  .logo-mark { width: 30px; height: 30px; }
  .article-wrap { padding: 2.25rem 16px 0; }
  .article-body { font-size: 1rem; }
  .article-body table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  .article-head h1 { font-size: 1.75rem; }
  .section-head { margin-bottom: 2rem; }
  .btn-primary { width: 100%; }
  .cta-box { padding: 2.5rem 1.5rem; border-radius: 18px; }
}

/* roulang page: category1 */
:root {
            --color-bg: #081422;
            --color-bg-2: #0D2137;
            --color-primary: #0D2137;
            --color-accent: #7BC96F;
            --color-accent-2: #38BDF8;
            --color-text: #EAF2FA;
            --color-text-sub: #94A9C2;
            --color-border: rgba(255, 255, 255, 0.10);
            --color-card-bg: rgba(255, 255, 255, 0.06);
            --color-card-border: rgba(255, 255, 255, 0.12);
            --radius-card: 20px;
            --radius-btn: 12px;
            --radius-img: 14px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 24px rgba(123, 201, 111, 0.35), 0 4px 16px rgba(56, 189, 248, 0.2);
            --container-width: 1200px;
            --space-section: clamp(4.5rem, 8vw, 7rem);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, 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);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: #B8C7DC;
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1rem;
            width: 100%;
            outline: none;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        input::placeholder,
        textarea::placeholder {
            color: #6B7F98;
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(123, 201, 111, 0.15);
        }

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

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(8, 20, 34, 0.7);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
        }

        .header-inner {
            max-width: var(--container-width);
            height: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text);
            letter-spacing: 0.01em;
        }

        .logo:hover {
            color: var(--color-text);
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .main-nav a {
            position: relative;
            font-size: 0.9375rem;
            font-weight: 500;
            color: #B8C7DC;
            padding: 6px 0;
            letter-spacing: 0.02em;
            transition: color 0.25s ease;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transform: translateX(-50%);
            transition: width 0.3s ease;
        }

        .main-nav a:hover {
            color: #EAF2FA;
        }

        .main-nav a:hover::after {
            width: 100%;
        }

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

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -2px;
            transform: translateX(-50%);
            width: 20px;
            height: 4px;
            border-radius: var(--radius-pill);
            background: var(--color-accent);
            box-shadow: 0 0 12px rgba(123, 201, 111, 0.4);
        }

        .header-cta {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-accent);
            border: 1px solid rgba(123, 201, 111, 0.35);
            border-radius: var(--radius-btn);
            padding: 0.5rem 1.5rem;
            transition: all 0.25s ease;
            background: rgba(123, 201, 111, 0.08);
        }

        .header-cta:hover {
            background: rgba(123, 201, 111, 0.15);
            border-color: rgba(123, 201, 111, 0.6);
            box-shadow: 0 0 16px rgba(123, 201, 111, 0.2);
            color: var(--color-accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding-top: calc(72px + 4rem);
            padding-bottom: 4rem;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #081422 0%, rgba(8, 20, 34, 0.6) 100%);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--color-text-sub);
            margin-bottom: 1.5rem;
        }

        .breadcrumb a {
            color: var(--color-text-sub);
        }

        .breadcrumb a:hover {
            color: var(--color-accent);
        }

        .breadcrumb .sep {
            opacity: 0.5;
        }

        .breadcrumb .current {
            color: var(--color-accent);
        }

        .hero-inner h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.15;
            font-weight: 700;
            max-width: 800px;
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }

        .hero-inner h1 .highlight {
            color: var(--color-accent);
        }

        .hero-sub {
            font-size: 1.125rem;
            color: #B8C7DC;
            max-width: 620px;
            line-height: 1.6;
            margin-bottom: 2.25rem;
        }

        .hero-buttons {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 3rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #7BC96F 0%, #38BDF8 100%);
            color: #081422;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.875rem 2.25rem;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            line-height: 1;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 0 32px rgba(123, 201, 111, 0.45), 0 4px 20px rgba(56, 189, 248, 0.3);
            color: #081422;
            transform: translateY(-2px);
        }

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

        .btn-primary:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(123, 201, 111, 0.25);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-text);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-weight: 500;
            font-size: 1rem;
            padding: 0.875rem 2rem;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            line-height: 1;
        }

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

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 0.125rem;
        }

        .hero-stat .num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            font-variant-numeric: tabular-nums;
        }

        .hero-stat .num i {
            font-style: normal;
            color: var(--color-accent);
        }

        .hero-stat .label {
            font-size: 0.875rem;
            color: var(--color-text-sub);
        }

        /* ===== 功能亮点 ===== */
        .feature-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 3rem;
        }

        .section-head .tag {
            display: inline-block;
            background: rgba(123, 201, 111, 0.12);
            border: 1px solid rgba(123, 201, 111, 0.3);
            color: var(--color-accent);
            border-radius: var(--radius-pill);
            padding: 0.25rem 1rem;
            font-size: 0.75rem;
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
        }

        .section-head h2 {
            font-size: clamp(2rem, 3.5vw, 2.75rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        .section-head p {
            font-size: 1.125rem;
            color: var(--color-text-sub);
            line-height: 1.6;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .feature-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            padding: 2.5rem 2rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(123, 201, 111, 0.4);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(123, 201, 111, 0.12);
            border-radius: 14px;
            margin-bottom: 1.25rem;
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.625rem;
        }

        .feature-card p {
            font-size: 0.9375rem;
            color: var(--color-text-sub);
            line-height: 1.7;
        }

        /* ===== 指南主体 ===== */
        .guide-layout {
            padding: var(--space-section) 0;
            background: var(--color-bg-2);
        }

        .guide-grid {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 3.5rem;
        }

        .guide-sidebar {
            position: sticky;
            top: 96px;
            align-self: start;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            padding-right: 2rem;
        }

        .guide-sidebar-title {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--color-text-sub);
            margin-bottom: 1.25rem;
            font-weight: 600;
        }

        .guide-nav {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .guide-nav a {
            display: block;
            font-size: 0.9375rem;
            color: var(--color-text-sub);
            padding: 0.5rem 0.75rem;
            border-radius: 8px;
            transition: all 0.25s ease;
            border-left: 2px solid transparent;
        }

        .guide-nav a:hover {
            color: var(--color-accent);
            background: rgba(123, 201, 111, 0.04);
            border-left-color: var(--color-accent);
        }

        .guide-nav a.active {
            color: var(--color-accent);
            background: rgba(123, 201, 111, 0.06);
            border-left-color: var(--color-accent);
            font-weight: 500;
        }

        .guide-content {
            min-width: 0;
        }

        .guide-block {
            margin-bottom: 3.5rem;
        }

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

        .guide-block h2 {
            font-size: clamp(1.75rem, 2.5vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 1.25rem;
            line-height: 1.3;
        }

        .guide-block h2 .num {
            color: var(--color-accent);
            margin-right: 0.75rem;
            font-variant-numeric: tabular-nums;
        }

        .guide-block p {
            font-size: 1rem;
            color: var(--color-text-sub);
            line-height: 1.8;
            margin-bottom: 1.5rem;
            max-width: 680px;
        }

        .guide-block img {
            border-radius: var(--radius-img);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            margin-top: 1rem;
        }

        .sub-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1rem;
        }

        .sub-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--color-text-sub);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-pill);
            padding: 0.3rem 1rem;
            transition: all 0.25s ease;
        }

        .sub-tag.active {
            background: var(--color-accent);
            color: #081422;
            border-color: var(--color-accent);
            font-weight: 500;
        }

        .guide-points {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
            margin-top: 1.5rem;
        }

        .guide-point {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: 14px;
            padding: 1.25rem;
            transition: border-color 0.3s ease;
        }

        .guide-point:hover {
            border-color: rgba(123, 201, 111, 0.35);
        }

        .guide-point h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .guide-point h4 svg {
            width: 18px;
            height: 18px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .guide-point p {
            font-size: 0.875rem;
            color: var(--color-text-sub);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .scenario-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            padding: 2rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

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

        .scenario-card .icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(56, 189, 248, 0.12);
            margin-bottom: 1rem;
        }

        .scenario-card .icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--color-accent-2);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .scenario-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .scenario-card p {
            font-size: 0.9375rem;
            color: var(--color-text-sub);
            line-height: 1.7;
        }

        /* ===== 使用流程 ===== */
        .flow-section {
            padding: var(--space-section) 0;
            background: var(--color-bg-2);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            position: relative;
        }

        .flow-steps::before {
            content: "";
            position: absolute;
            top: 56px;
            left: 12%;
            right: 12%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(123, 201, 111, 0.4), transparent);
        }

        .flow-step {
            text-align: center;
            padding: 0 1rem;
            position: relative;
        }

        .flow-step .step-num {
            display: block;
            font-size: 3.5rem;
            font-weight: 700;
            color: rgba(123, 201, 111, 0.25);
            line-height: 1;
            margin-bottom: 1.25rem;
            transition: color 0.3s ease;
        }

        .flow-step:hover .step-num {
            color: var(--color-accent);
        }

        .flow-step .step-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            margin-bottom: 1rem;
        }

        .flow-step .step-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .flow-step h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.625rem;
        }

        .flow-step p {
            font-size: 0.9375rem;
            color: var(--color-text-sub);
            line-height: 1.7;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== 数据安全 ===== */
        .safety-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }

        .safety-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .safety-content h2 {
            font-size: clamp(2rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .safety-content p {
            color: var(--color-text-sub);
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .safety-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .safety-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.9375rem;
            color: var(--color-text);
        }

        .safety-list li svg {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            margin-top: 2px;
        }

        .safety-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
        }

        .safety-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--color-bg-2);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.875rem;
        }

        .faq-item {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: 16px;
            transition: border-color 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(123, 201, 111, 0.35);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text);
            transition: color 0.3s ease;
            border-radius: 16px;
        }

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

        .faq-item.open .faq-question {
            color: var(--color-accent);
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }

        .faq-icon::before {
            content: "";
            width: 10px;
            height: 10px;
            display: block;
            transform: rotate(45deg);
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            margin-top: -4px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(90deg);
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.5rem;
            color: var(--color-text-sub);
            font-size: 0.9375rem;
            line-height: 1.75;
            border-left: 2px solid var(--color-accent);
            margin-left: 1.5rem;
        }

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

        .cta-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            align-items: start;
        }

        .cta-left h2 {
            font-size: clamp(2rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }

        .cta-left>p {
            color: var(--color-text-sub);
            margin-bottom: 2rem;
            max-width: 520px;
        }

        .cta-form {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            padding: 2rem;
        }

        .form-group {
            margin-bottom: 1rem;
        }

        .form-group label {
            display: block;
            font-size: 0.875rem;
            color: var(--color-text-sub);
            margin-bottom: 0.375rem;
        }

        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394A9C2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 16px;
        }

        .form-submit {
            margin-top: 1.25rem;
        }

        .cta-right {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
            padding-top: 0.5rem;
        }

        .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 0.875rem;
            padding: 1.25rem;
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: 16px;
            transition: transform 0.3s ease, border-color 0.3s ease;
        }

        .cta-contact-item:hover {
            transform: translateY(-3px);
            border-color: rgba(123, 201, 111, 0.3);
        }

        .cta-contact-item svg {
            width: 20px;
            height: 20px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }

        .cta-contact-item .label {
            font-size: 0.8125rem;
            color: var(--color-text-sub);
        }

        .cta-contact-item .value {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050D16;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand p {
            color: var(--color-text-sub);
            font-size: 0.9375rem;
            line-height: 1.75;
            margin-top: 1rem;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: var(--color-text-sub);
            font-size: 0.9375rem;
            margin-bottom: 0.625rem;
            transition: color 0.25s ease;
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            color: var(--color-text-sub);
            font-size: 0.9375rem;
        }

        .footer-contact-list svg {
            width: 18px;
            height: 18px;
            stroke: var(--color-accent);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 2rem;
            text-align: center;
            color: var(--color-text-sub);
            font-size: 0.875rem;
        }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            display: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .feature-grid {
                gap: 1.5rem;
            }

            .guide-grid {
                grid-template-columns: 200px 1fr;
                gap: 2rem;
            }

            .safety-grid {
                gap: 2rem;
            }

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

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(8, 20, 34, 0.98);
                backdrop-filter: blur(10px);
                -webkit-backdrop-filter: blur(10px);
                flex-direction: column;
                align-items: flex-start;
                padding: 2rem 2rem 2.5rem;
                gap: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .main-nav.open {
                max-height: calc(100vh - 72px);
            }

            .main-nav a {
                font-size: 1.5rem;
                line-height: 3;
                color: var(--color-text);
                width: 100%;
            }

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

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

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

            .nav-toggle {
                display: flex;
            }

            .header-cta {
                display: none;
            }

            .hero-inner h1 {
                font-size: clamp(2.25rem, 4vw, 3rem);
            }

            .hero-stats {
                gap: 1.5rem;
            }

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

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

            .guide-sidebar {
                position: static;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                padding-right: 0;
                padding-bottom: 1rem;
                margin-bottom: 2rem;
            }

            .guide-nav {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 0.375rem;
            }

            .guide-nav a {
                padding: 0.375rem 0.875rem;
                font-size: 0.875rem;
                border-left: none;
                border-radius: var(--radius-pill);
                border: 1px solid transparent;
            }

            .guide-nav a:hover {
                border-left: none;
                border-color: rgba(123, 201, 111, 0.3);
            }

            .guide-nav a.active {
                border-left: none;
                border-color: var(--color-accent);
            }

            .guide-points {
                grid-template-columns: 1fr;
            }

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

            .flow-steps {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }

            .flow-steps::before {
                display: none;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

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

            .btn-primary,
            .btn-outline {
                width: 100%;
            }

            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }

            .cta-form {
                padding: 1.5rem;
            }

            .cta-contact-item {
                padding: 1rem;
            }

            .footer-bottom p {
                font-size: 0.8125rem;
            }
        }