/* ==========================================================================
   DeepSeek 极地冰屋群落风 - 官方说明落地页样式表
   主题特征：冰屋群散布冰原，"DeepSeek网页版入口"为主冰屋，功能为冰砖拱顶，骨架为群落散点布局，冰白配极光紫
   主色：深海极夜蓝 #0A1128 / #101F42，冰原白 #F4FAFC / #FFFFFF
   强调色：极光紫 #8A2BE2 / #9D4EDD，冰晶青 #00C2CB / #48CAE4
   ========================================================================== */

:root {
  --bg-primary: #F0F6FA;
  --bg-card: #FFFFFF;
  --bg-card-alt: #EBF4F8;
  --bg-dark: #0A1128;
  --bg-dark-card: #101F42;
  --border-color: #D3E4ED;
  --border-dark: #1E3A5F;
  --text-main: #132238;
  --text-muted: #536B82;
  --text-light: #E0EFFF;
  --accent-purple: #8A2BE2;
  --accent-purple-light: #A855F7;
  --accent-purple-glow: rgba(138, 43, 226, 0.16);
  --accent-ice: #00B4D8;
  --accent-ice-light: #90E0EF;
  --shadow-sm: 0 2px 8px rgba(10, 17, 40, 0.05);
  --shadow-md: 0 8px 24px rgba(10, 17, 40, 0.08);
  --shadow-lg: 0 16px 36px rgba(138, 43, 226, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-igloo: 24px 24px 14px 14px;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-primary);
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #E3F2FD 0%, #F0F6FA 45%, #EBF3F8 100%);
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ================== Header ================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(10, 17, 40, 0.03);
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--bg-dark);
}

.brand-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.brand-badge {
  font-size: 0.75rem;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-purple-light));
  color: #fff;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
  padding: 6px 4px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-purple);
}

.header-action .btn-quick {
  background: linear-gradient(135deg, var(--accent-purple), #6A0DAD);
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px var(--accent-purple-glow);
  display: inline-block;
}

.header-action .btn-quick:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(138, 43, 226, 0.28);
}

/* ================== Hero Section ================== */
.hero-section {
  padding: 64px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-h1 {
  font-size: 2.35rem;
  line-height: 1.25;
  font-weight: 800;
  color: var(--bg-dark);
}

.hero-h1 .h1-upper {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 6px;
}

.hero-h1 .h1-lower {
  display: block;
  background: linear-gradient(135deg, #0A1128 30%, #4B0082 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 4px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), #6A0DAD);
  color: #ffffff;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 6px 18px var(--accent-purple-glow);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(138, 43, 226, 0.3);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--bg-dark);
  border: 1px solid var(--border-color);
  padding: 13px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  background: var(--bg-card-alt);
}

.hero-capsules {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.capsule {
  font-size: 0.8rem;
  padding: 4px 12px;
  background: #E8F1F8;
  color: #234568;
  border-radius: 20px;
  border: 1px solid #D1E3EF;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.hero-update-date {
  font-size: 0.82rem;
  color: #71879B;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero Right Visual: 冰屋群落控制台 */
.hero-visual {
  position: relative;
}

.igloo-terminal-card {
  background: var(--bg-dark);
  color: var(--text-light);
  border-radius: var(--radius-igloo);
  border: 1px solid var(--border-dark);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(138, 43, 226, 0.15);
  overflow: hidden;
  position: relative;
}

.terminal-header {
  background: #060B1C;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-dark);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }

.terminal-title {
  font-size: 0.8rem;
  font-family: monospace;
  color: #79A3D0;
}

.terminal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.88rem;
}

.dialogue-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  line-height: 1.55;
}

.user-bubble {
  background: #172B4D;
  border-left: 3px solid var(--accent-ice);
  align-self: flex-start;
  max-width: 90%;
}

.ai-bubble {
  background: #1E1238;
  border-left: 3px solid var(--accent-purple-light);
  align-self: stretch;
}

.reasoning-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--accent-purple-light);
  background: rgba(138, 43, 226, 0.2);
  padding: 3px 8px;
  border-radius: 6px;
  margin-bottom: 8px;
}

.terminal-footer-status {
  padding: 10px 18px;
  background: #070D22;
  border-top: 1px solid var(--border-dark);
  font-size: 0.78rem;
  color: #6C8BAE;
  display: flex;
  justify-content: space-between;
}

/* ================== General Section Title ================== */
.section-title-wrap {
  text-align: center;
  margin-bottom: 38px;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--bg-dark);
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

.section-subtitle {
  font-size: 0.96rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* ================== Section 3: Features (冰砖拱顶与特色) ================== */
.features-section {
  padding: 48px 0;
}

.feature-strip-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.feature-strip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.feature-strip:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.strip-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.strip-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #F1E9FC;
  color: var(--accent-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.strip-left h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.strip-right {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.feature-supplement-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.supplement-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.25s ease;
}

.supplement-card:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
}

.supplement-card img {
  border-radius: var(--radius-sm);
  height: 160px;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.supplement-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.supplement-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================== Section 4: Steps (群落散点四步走) ================== */
.steps-section {
  padding: 48px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-igloo);
  padding: 26px 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.step-num-badge {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-purple-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 4px 10px var(--accent-purple-glow);
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.step-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================== Section 5: Checklist (深色大卡对照清单) ================== */
.checklist-section {
  padding: 48px 0;
}

.checklist-dark-card {
  background: linear-gradient(145deg, #0A1128 0%, #16203D 100%);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  color: var(--text-light);
  box-shadow: var(--shadow-lg);
}

.checklist-header {
  margin-bottom: 24px;
}

.checklist-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.checklist-header p {
  font-size: 0.92rem;
  color: #8BA8C8;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.checklist-col {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px;
}

.col-title-badge {
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}

.col-wrong .col-title-badge {
  background: rgba(239, 68, 68, 0.2);
  color: #FCA5A5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.col-right .col-title-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #6EE7B7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.checklist-items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checklist-items li {
  font-size: 0.88rem;
  line-height: 1.55;
  display: flex;
  gap: 10px;
}

.col-wrong li { color: #D1D9E6; }
.col-right li { color: #E8F1FF; }

/* ================== Section 6: Personas (4个人物/岗位气泡卡) ================== */
.personas-section {
  padding: 48px 0;
}

.personas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.25s ease;
}

.persona-card:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.persona-role-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.persona-avatar-box {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #EDE4FB;
  color: var(--accent-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.persona-role-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.persona-scene-tag {
  font-size: 0.78rem;
  color: var(--accent-purple);
  background: #F3ECFB;
  padding: 2px 6px;
  border-radius: 4px;
  align-self: flex-start;
}

.persona-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.persona-action {
  margin-top: auto;
  font-size: 0.8rem;
  color: #2D6A9F;
  font-weight: 600;
  background: #EDF6FC;
  padding: 6px 10px;
  border-radius: 6px;
  border-left: 3px solid var(--accent-ice);
}

/* ================== Section 7: Tips (3列短卡) ================== */
.tips-section {
  padding: 48px 0;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all 0.25s ease;
}

.tip-card:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
}

.tip-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tip-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.tip-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================== Section 8: Troubleshooting (卡点笔记) ================== */
.troubleshooting-section {
  padding: 48px 0;
}

.trouble-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trouble-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: center;
}

.trouble-symptom {
  border-left: 4px solid #EF4444;
  padding-left: 12px;
}

.trouble-symptom h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: #B91C1C;
  margin-bottom: 4px;
}

.trouble-symptom p {
  font-size: 0.84rem;
  color: var(--text-muted);
}

.trouble-solution {
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.6;
  background: #F8FBFE;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid #E2EDF5;
}

.trouble-solution strong {
  color: var(--accent-purple);
}

/* ================== Section 9: FAQ (8条手风琴) ================== */
.faq-section {
  padding: 48px 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 920px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: var(--accent-purple-light);
}

.faq-item[open] {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
}

.faq-summary {
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--bg-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--accent-purple);
  font-weight: 400;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
}

.faq-content {
  padding: 0 22px 20px 22px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.68;
  border-top: 1px solid #F0F4F8;
  padding-top: 14px;
}

/* ================== Section 10: News (资讯列表) ================== */
.news-section {
  padding: 48px 0;
}

.news-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.news-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.news-item:hover {
  border-color: var(--accent-purple);
  transform: translateX(4px);
}

.news-item a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--bg-dark);
  flex: 1;
}

.news-item a:hover {
  color: var(--accent-purple);
}

.news-item time {
  font-size: 0.8rem;
  color: #7B8F9F;
  font-family: monospace;
  white-space: nowrap;
}

.news-bottom-time {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ================== Section 11: CTA ================== */
.cta-section {
  padding: 48px 0 64px;
}

.cta-box {
  background: linear-gradient(135deg, #0A1128 0%, #201335 100%);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  color: #FFFFFF;
  box-shadow: var(--shadow-lg);
}

.cta-box h3 {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #FFFFFF 40%, var(--accent-ice-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-box p {
  font-size: 1rem;
  color: #9BB8D4;
  max-width: 620px;
  margin: 0 auto 24px;
}

/* ================== Section 12: Footer ================== */
.site-footer {
  background: #060B1C;
  color: #7D97B2;
  border-top: 1px solid #14223E;
  padding: 48px 0 32px;
  font-size: 0.88rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid #14223E;
  margin-bottom: 28px;
}

.footer-brand h4 {
  font-size: 1.1rem;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.footer-brand p {
  line-height: 1.6;
  font-size: 0.85rem;
}

.footer-col h5 {
  font-size: 0.92rem;
  color: #FFFFFF;
  margin-bottom: 12px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col ul a {
  color: #7D97B2;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  font-size: 0.8rem;
  color: #556E88;
}

/* ================== 响应式适配 (<900px, <640px) ================== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .feature-strip {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .feature-supplement-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }
  .checklist-grid {
    grid-template-columns: 1fr;
  }
  .personas-grid {
    grid-template-columns: 1fr 1fr;
  }
  .tips-grid {
    grid-template-columns: 1fr;
  }
  .trouble-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-h1 {
    font-size: 1.75rem;
  }
  .hero-h1 .h1-upper {
    font-size: 0.95rem;
  }
  .section-title {
    font-size: 1.45rem;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .personas-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}


/* PERF-PATCH-20260928 */
img { max-width: 100%; }
@media (max-width: 900px) {
  header, .header, .site-header {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}
@media (max-width: 900px), (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-iteration-count: 1 !important;
    animation-duration: 0.6s !important;
  }
}
main section:not(#hero):not(.hero) {
  content-visibility: auto;
  contain-intrinsic-size: auto 420px;
}