/* ==========================================================================
   DeepSeek 说明书系统 - 深海鲸落风设计主题 (Abyssal Whale Fall & Bone White)
   设计语言：鲸落滋养深海生态，"DeepSeek-R1"为鲸骨，功能为食骨蠕虫生态，骨架为骨骼横卧分层，骨白配深海蓝。
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  
  /* 鲸落与深海色彩体系：幽深万仞深海蓝 + 沉静骨白 */
  --bg-page: #f2f6fa;
  --bg-abyss: #071526;
  --bg-abyss-card: #0d213a;
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.88);
  
  --deep-950: #030d18;
  --deep-900: #071627;
  --deep-800: #0e2742;
  --deep-700: #173b61;
  --deep-600: #1e5285;
  --deep-500: #2563eb;
  
  /* 骨白、透光磷光与深海微生物强调色 */
  --bone-white: #fdfbf7;
  --bone-ivory: #f4ede2;
  --bone-border: #e2d9cc;
  
  --phosphor-cyan: #06b6d4;
  --phosphor-light: #38bdf8;
  --phosphor-bg: #ecfeff;
  --phosphor-border: #a5f3fc;
  --phosphor-glow: rgba(6, 182, 212, 0.22);
  
  --shadow-sm: 0 2px 8px rgba(7, 22, 39, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(7, 22, 39, 0.08), 0 0 0 1px rgba(226, 217, 204, 0.7);
  --shadow-whale: 0 16px 36px -10px rgba(6, 182, 212, 0.2), 0 0 0 1px rgba(6, 182, 212, 0.4);
  --shadow-abyss: 0 20px 40px rgba(3, 13, 24, 0.5);
  
  --radius-bone: 18px;
  --radius-pill: 9999px;
  --radius-sm: 8px;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--deep-900);
  line-height: 1.68;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  background-color: var(--bg-page);
  /* 鲸骨横卧横向纹理与深海微光背景 */
  background-image: 
    radial-gradient(ellipse 65% 35% at 50% 0%, rgba(6, 182, 212, 0.12) 0%, transparent 70%),
    repeating-linear-gradient(180deg, transparent 0, transparent 46px, rgba(30, 82, 133, 0.03) 47px, transparent 48px),
    linear-gradient(180deg, #f2f6fa 0%, #e6eff7 50%, #f2f6fa 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

a {
  color: var(--deep-700);
  text-decoration: none;
  transition: all 0.25s ease;
}

a:hover {
  color: var(--phosphor-cyan);
}

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

/* 顶栏 Header - 鲸落沉静骨白微光 */
.header-sticky {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(253, 251, 247, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--bone-border);
  box-shadow: 0 4px 16px rgba(7, 22, 39, 0.04);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--deep-950);
}

.brand-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  box-shadow: 0 2px 8px rgba(6, 182, 212, 0.25);
  border: 1px solid var(--bone-border);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
}

.nav-links a {
  color: var(--deep-800);
  font-size: 0.94rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--deep-900);
  background-color: var(--phosphor-bg);
  border-color: var(--phosphor-border);
}

/* 鲸骨横架圆弧通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  min-height: 48px;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--deep-700) 0%, var(--deep-950) 100%);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(6, 182, 212, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--deep-600) 0%, var(--deep-800) 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(6, 182, 212, 0.38);
}

.btn-secondary {
  background-color: var(--bone-white);
  color: var(--deep-900);
  border: 1px solid var(--bone-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--phosphor-bg);
  border-color: var(--phosphor-cyan);
  color: var(--deep-900);
  transform: translateY(-2px);
}

/* Hero 区块 - 鲸骨横卧与生态滋养 */
.hero-section {
  padding: 56px 0 64px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 40px;
  align-items: center;
}

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

.h1-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.h1-sup {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--deep-600);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.h1-sup::before {
  content: "≋";
  color: var(--phosphor-cyan);
  font-size: 1.2rem;
}

.h1-main {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--deep-950);
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.hero-lead {
  font-size: 1.08rem;
  color: var(--deep-700);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 6px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background-color: var(--bone-white);
  color: var(--deep-800);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 600;
}

.hero-update-date {
  font-size: 0.85rem;
  color: var(--deep-600);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 视觉右栏：鲸骨横架与生态分层假界面 */
.hero-visual-card {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-bone);
  padding: 24px;
  box-shadow: var(--shadow-whale);
  position: relative;
  overflow: hidden;
}

.hero-visual-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--deep-700), var(--phosphor-cyan), var(--bone-border));
}

.whale-bone-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.bone-core-box {
  background: linear-gradient(180deg, #ffffff 0%, var(--bone-ivory) 100%);
  border: 1px solid var(--bone-border);
  border-radius: 14px;
  padding: 16px;
}

.bone-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--phosphor-bg);
  border: 1px solid var(--phosphor-border);
  border-radius: var(--radius-pill);
  color: var(--deep-900);
  font-size: 0.8rem;
  font-weight: 600;
}

.mock-chat-bubble {
  padding: 11px 15px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 10px;
}

.mock-chat-bubble.user {
  background-color: var(--bone-white);
  color: var(--deep-950);
  align-self: flex-end;
  border: 1px solid var(--bone-border);
}

.mock-chat-bubble.ai {
  background-color: #ffffff;
  color: var(--deep-950);
  border-left: 3px solid var(--phosphor-cyan);
  box-shadow: var(--shadow-sm);
}

.hero-img-slot {
  width: 100%;
  height: 140px;
  border-radius: 12px;
  object-fit: cover;
  margin-top: 8px;
  border: 1px solid var(--bone-border);
}

/* 通用区块标题 H2 */
.section-title-wrap {
  text-align: center;
  margin-bottom: 40px;
}

.section-h2 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--deep-950);
  letter-spacing: -0.3px;
  position: relative;
  display: inline-block;
}

.section-h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--deep-600), var(--phosphor-cyan));
  margin: 10px auto 0;
  border-radius: 3px;
}

.section-desc {
  font-size: 1rem;
  color: var(--deep-700);
  margin-top: 10px;
}

/* 特色横条与补充卡 */
.features-section {
  padding: 56px 0;
}

.feature-bars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.feature-bar-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: 16px;
  padding: 20px 28px;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
  align-items: center;
}

.feature-bar-item:hover {
  border-color: var(--phosphor-cyan);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.feature-bar-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--deep-950);
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-bar-title .bone-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--phosphor-cyan);
  box-shadow: 0 0 0 3px var(--phosphor-bg);
}

.feature-bar-desc {
  color: var(--deep-700);
  font-size: 0.95rem;
}

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

.extra-card {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-bone);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.extra-card img {
  width: 100%;
  height: 160px;
  border-radius: 12px;
  object-fit: cover;
}

/* 步骤 Section - 4 步带序号卡片 */
.steps-section {
  padding: 56px 0;
  background-color: rgba(236, 254, 255, 0.4);
  border-top: 1px solid var(--bone-border);
  border-bottom: 1px solid var(--bone-border);
}

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

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

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

.step-badge {
  width: 36px;
  height: 36px;
  background: var(--phosphor-bg);
  color: var(--deep-900);
  border: 1px solid var(--phosphor-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
}

.step-card h3 {
  font-size: 1.05rem;
  color: var(--deep-950);
  font-weight: 700;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--deep-700);
  line-height: 1.6;
}

/* 对照清单 - 深色大卡 (深海万仞大卡) */
.checklist-section {
  padding: 56px 0;
}

.dark-checklist-card {
  background: linear-gradient(145deg, var(--bg-abyss) 0%, var(--bg-abyss-card) 100%);
  color: #f8fafc;
  border-radius: var(--radius-bone);
  padding: 40px;
  box-shadow: var(--shadow-abyss);
  border: 1px solid rgba(6, 182, 212, 0.35);
  position: relative;
  overflow: hidden;
}

.dark-checklist-card::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
}

.checklist-header {
  margin-bottom: 28px;
}

.checklist-header h2 {
  font-size: 1.6rem;
  color: #ffffff;
  font-weight: 700;
}

.checklist-header p {
  color: var(--phosphor-border);
  font-size: 0.95rem;
  margin-top: 6px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.check-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.check-item.warn .icon {
  color: #fb7185;
  font-weight: 800;
  font-size: 1.1rem;
}

.check-item .text h4 {
  font-size: 0.98rem;
  color: #ffffff;
  font-weight: 600;
}

.check-item .text p {
  font-size: 0.86rem;
  color: var(--phosphor-border);
  margin-top: 4px;
  line-height: 1.5;
}

/* 场景卡 - 4 人物气泡卡 */
.scenes-section {
  padding: 56px 0;
}

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

.scene-bubble-card {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-bone);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.25s ease;
}

.scene-bubble-card:hover {
  transform: translateY(-4px);
  border-color: var(--phosphor-cyan);
  box-shadow: var(--shadow-md);
}

.scene-persona {
  display: flex;
  align-items: center;
  gap: 12px;
}

.persona-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--phosphor-bg);
  color: var(--deep-900);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--phosphor-border);
}

.persona-role {
  font-size: 1rem;
  font-weight: 700;
  color: var(--deep-950);
}

.persona-tag {
  font-size: 0.78rem;
  color: var(--deep-600);
}

.scene-quote {
  font-size: 0.88rem;
  color: var(--deep-800);
  background: var(--bone-white);
  padding: 12px;
  border-radius: 12px;
  line-height: 1.5;
  border-left: 2px solid var(--phosphor-cyan);
}

.scene-action-note {
  font-size: 0.84rem;
  color: var(--deep-700);
  font-weight: 600;
}

/* 小技巧 - 3 列短卡 */
.tips-section {
  padding: 56px 0;
  background-color: rgba(244, 237, 226, 0.4);
}

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

.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-bone);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tip-tag {
  font-size: 0.8rem;
  color: var(--deep-600);
  font-weight: 700;
  text-transform: uppercase;
}

.tip-card h3 {
  font-size: 1.1rem;
  color: var(--deep-950);
  font-weight: 700;
}

.tip-card p {
  font-size: 0.92rem;
  color: var(--deep-700);
  line-height: 1.6;
}

/* 卡点笔记 - 失败现象 + 处理顺序 */
.pitfalls-section {
  padding: 56px 0;
}

.pitfalls-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pitfall-card {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: var(--radius-bone);
  padding: 24px 30px;
  box-shadow: var(--shadow-sm);
}

.pitfall-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.pitfall-tag {
  background-color: #fee2e2;
  color: #991b1b;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.pitfall-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--deep-950);
}

.pitfall-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  background: var(--bone-white);
  border-radius: 14px;
  padding: 16px 20px;
  margin-top: 10px;
}

.pitfall-col h4 {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pitfall-col.bad h4 {
  color: #dc2626;
}

.pitfall-col.good h4 {
  color: var(--deep-700);
}

.pitfall-col p {
  font-size: 0.86rem;
  color: var(--deep-800);
  line-height: 1.55;
}

/* FAQ 8条手风琴 */
.faq-section {
  padding: 56px 0;
}

.faq-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

details.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--bone-border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.25s ease;
}

details.faq-item[open] {
  border-color: var(--phosphor-cyan);
  box-shadow: var(--shadow-md);
}

summary {
  list-style: none;
  padding: 18px 24px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--deep-950);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

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

summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--phosphor-cyan);
  font-weight: 400;
  transition: transform 0.2s ease;
}

details[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 0.94rem;
  color: var(--deep-700);
  line-height: 1.7;
  border-top: 1px solid var(--bone-ivory);
  padding-top: 14px;
}

/* 资讯区 - 8条带日期链到本页锚点 */
.news-section {
  padding: 56px 0;
  background-color: var(--bone-white);
  border-top: 1px solid var(--bone-border);
  border-bottom: 1px solid var(--bone-border);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.news-card-link {
  background: #ffffff;
  border: 1px solid var(--bone-border);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: all 0.2s ease;
}

.news-card-link:hover {
  border-color: var(--phosphor-cyan);
  transform: translateX(3px);
  box-shadow: var(--shadow-sm);
}

.news-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--deep-900);
}

.news-date {
  font-size: 0.82rem;
  color: var(--deep-600);
  white-space: nowrap;
}

.news-footer-note {
  text-align: center;
  margin-top: 24px;
  font-size: 0.88rem;
  color: var(--deep-600);
}

/* 收尾 CTA */
.cta-section {
  padding: 64px 0;
}

.cta-card {
  background: linear-gradient(135deg, var(--deep-950) 0%, var(--bg-abyss) 100%);
  border-radius: var(--radius-bone);
  padding: 48px 36px;
  color: #ffffff;
  text-align: center;
  box-shadow: var(--shadow-abyss);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--phosphor-border);
}

.cta-card h2 {
  font-size: 1.9rem;
  font-weight: 800;
  color: #ffffff;
}

.cta-card p {
  font-size: 1.05rem;
  color: var(--phosphor-border);
  max-width: 600px;
  line-height: 1.6;
}

.cta-img-wrap {
  width: 100%;
  max-width: 480px;
  margin-top: 10px;
}

.cta-img-wrap img {
  width: 100%;
  height: 140px;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Footer 页脚 */
.footer-main {
  background-color: #ffffff;
  border-top: 1px solid var(--bone-border);
  padding: 56px 0 32px;
  font-size: 0.9rem;
  color: var(--deep-700);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand h4 {
  font-size: 1.1rem;
  color: var(--deep-950);
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.65;
}

.footer-col h5 {
  font-size: 0.95rem;
  color: var(--deep-950);
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  color: var(--deep-700);
  font-size: 0.88rem;
}

.footer-col ul a:hover {
  color: var(--phosphor-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--bone-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
}

/* 响应式断点控制 */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .feature-bar-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .feature-extra-grid,
  .checklist-grid,
  .pitfall-body,
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid,
  .scenes-grid,
  .tips-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .h1-main {
    font-size: 1.75rem;
  }
  
  .section-h2 {
    font-size: 1.45rem;
  }
  
  .steps-grid,
  .scenes-grid,
  .tips-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  
  .nav-links {
    display: none;
  }
}

/* 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;
}