/* ========== 设计变量 ========== */
:root {
  --primary-dark: #0a2563;
  --primary: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-soft: #eff4ff;
  --accent: #06b6d4;
  --accent-green: #10b981;
  --accent-soft: #ecfeff;
  --bg: #ffffff;
  --bg-gray: #f5f7fb;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

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

/* ========== 通用组件 ========== */
.section { padding: 90px 0; }
.section-gray { background: var(--bg-gray); }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--accent);
}
.section-title {
  font-size: 36px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
}
.section-title span { color: var(--primary); }
.section-desc {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), var(--accent));
  color: #fff;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.45);
}
.btn-outline {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.4);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.7);
}
.btn-ghost {
  background: var(--bg);
  color: var(--primary);
  border: 1.5px solid var(--primary-light);
}
.btn-ghost:hover {
  background: var(--primary);
  color: #fff;
}

/* ========== 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 37, 99, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 22px;
  font-weight: 900;
}
.nav-logo svg { flex-shrink: 0; }
.nav-logo span { color: var(--accent); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-menu a {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav-menu a:hover { color: #fff; }
.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}
.nav-menu a:hover::after { width: 100%; }
.nav-cta {
  padding: 10px 24px;
  font-size: 14px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ========== Hero ========== */
.hero {
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-light) 100%);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6,182,212,0.25) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -120px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(16,185,129,0.18) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-tag .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
}
.hero h1 span {
  background: linear-gradient(90deg, var(--accent-green), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-img {
  position: relative;
}
.hero-img img {
  width: 100%;
  max-width: 520px;
  margin-left: auto;
  filter: drop-shadow(0 20px 50px rgba(0,0,0,0.25));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

/* 波浪分隔 */
.wave-divider {
  position: relative;
  height: 60px;
  background: var(--bg);
  margin-top: -1px;
}
.wave-divider svg {
  position: absolute;
  top: -59px;
  left: 0;
  width: 100%;
  height: 60px;
}

/* ========== 数据统计 ========== */
.stats {
  padding: 50px 0;
  background: var(--bg);
  position: relative;
  z-index: 2;
  margin-top: -40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 40px 32px;
}
.stat-item {
  text-align: center;
  padding: 0 12px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 6px;
}
.stat-num span { color: var(--accent-green); }
.stat-label {
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
}

/* ========== 核心优势 ========== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.advantage-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.advantage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.advantage-card:hover::before { transform: scaleX(1); }
.advantage-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-soft), var(--accent-soft));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.advantage-icon svg { width: 28px; height: 28px; }
.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.advantage-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ========== 关于我们 ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about-img {
  position: relative;
}
.about-img img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.about-img .badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent));
  color: #fff;
  padding: 20px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.about-img .badge .num {
  font-size: 32px;
  font-weight: 900;
  line-height: 1;
}
.about-img .badge .txt {
  font-size: 12px;
  opacity: 0.9;
  margin-top: 4px;
}
.about-content .section-head {
  text-align: left;
  margin: 0 0 28px;
}
.about-content .section-head .section-eyebrow::before { display: none; }
.about-text {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 28px;
}
.about-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  margin-bottom: 36px;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}
.about-list li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

/* ========== 交易流程 ========== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-step {
  text-align: center;
  padding: 0 20px;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 36px;
  right: -20px;
  width: 40px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--primary-light) 0, var(--primary-light) 6px, transparent 6px, transparent 12px);
}
.step-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 28px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 8px 24px rgba(29, 78, 216, 0.3);
  position: relative;
  z-index: 1;
}
.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.process-step p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ========== 账号类型 ========== */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.platform-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.platform-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.platform-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 24px;
  font-weight: 900;
  color: #fff;
}
.platform-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.platform-card p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 10px;
}
.platform-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
}

/* ========== 为什么选择我们 ========== */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.why-img img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.why-content .section-head {
  text-align: left;
  margin: 0 0 32px;
}
.why-content .section-head .section-eyebrow::before { display: none; }
.why-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.why-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.why-item .check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.why-item .check svg { width: 16px; height: 16px; }
.why-item h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}
.why-item p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ========== 客服展示 ========== */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.service-team {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
}
.service-card {
  display: block;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  color: inherit;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.service-avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid var(--primary-soft);
}
.service-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.service-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.service-card .role {
  font-size: 12px;
  color: var(--accent-green);
  font-weight: 500;
  margin-bottom: 12px;
}
.service-card .status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-light);
}
.service-card .status .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
}
.service-info {
  background: linear-gradient(160deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius);
  padding: 40px 36px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.service-info h3 {
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 8px;
}
.service-info > p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
}
.contact-item .ci-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item .ci-icon svg { width: 22px; height: 22px; }
.contact-item .ci-label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}
.contact-item .ci-value {
  font-size: 16px;
  font-weight: 700;
}
.service-hours {
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.3s;
}
.faq-item.active {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  gap: 16px;
}
.faq-q .arrow {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item.active .arrow { transform: rotate(180deg); background: var(--primary); }
.faq-item.active .arrow svg path { stroke: #fff; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, var(--primary-light));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(6,182,212,0.3) 0%, transparent 70%);
}
.cta-section h2 {
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  position: relative;
}
.cta-section .btn { position: relative; }

/* ========== 页脚 ========== */
.footer {
  background: #0a1628;
  color: rgba(255,255,255,0.6);
  padding: 48px 0 24px;
}
.footer-simple {
  text-align: center;
  margin-bottom: 28px;
}
.footer-simple .nav-logo {
  justify-content: center;
  margin-bottom: 14px;
}
.footer-simple-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 16px;
}
.footer-simple-contact {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-simple-contact .sep {
  color: rgba(255,255,255,0.2);
}
.flink {
  text-align: center;
  padding-top: 20px;
  margin-top: 4px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.flink-toggle {
  cursor: pointer;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  user-select: none;
  display: inline-block;
  transition: color 0.2s;
}
.flink-toggle:hover { color: rgba(255,255,255,0.7); }
.flink-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
  margin-top: 12px;
  font-size: 13px;
}
.flink-list.hidden { display: none; }
.flink-list a {
  color: rgba(255,255,255,0.45);
  transition: color 0.2s;
}
.flink-list a:hover { color: var(--accent); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 300px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}
.footer-social a:hover { background: var(--primary); }
.footer-social svg { width: 18px; height: 18px; }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 12px;
}

/* ========== 响应式 ========== */
@media (max-width: 968px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--primary-dark);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .hero { padding: 120px 0 80px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero h1 { font-size: 34px; }
  .hero p { margin: 0 auto 32px; }
  .hero-btns { justify-content: center; }
  .hero-img img { margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .stat-item:nth-child(2) { border-right: none; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img .badge { right: 10px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 40px 0; }
  .process-step:nth-child(2)::after { display: none; }
  .platforms-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .service-team { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
}
@media (max-width: 560px) {
  .advantages-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .process-step::after { display: none !important; }
  .service-team { grid-template-columns: repeat(2, 1fr); }
  .about-list, .why-list { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 20px; }
  .stat-item:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
}