/* ============================================================
   含羞草实验室导航 — Memphis Design System
   主色 #87ff71 · 辅色 #ffce5c · 墨色 #192617
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── 变量 ── */
:root {
  --green: #87ff71;
  --yellow: #ffce5c;
  --dark: #192617;
  --dark2: #1f3120;
  --dark3: #2a3d2b;
  --white: #fafff8;
  --off-white: #f4ffe8;
  --text: #192617;
  --text-muted: #4a5e4b;
  --border: #192617;
  --radius: 18px;
  --radius-sm: 10px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --bnav-h: 64px;
  --transition: 0.2s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
  padding-bottom: var(--bnav-h);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--dark); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: #2a7a00; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: 1rem; }

/* ── Memphis 背景装饰层 ── */
.memphis-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.memphis-sm { position: absolute; }

/* 三角形 */
.m-tri {
  position: absolute;
  width: 0;
  height: 0;
}
.m-tri-1 {
  border-left: 60px solid transparent;
  border-right: 60px solid transparent;
  border-bottom: 104px solid var(--yellow);
  top: 8vh;
  right: 5%;
  transform: rotate(15deg);
  opacity: 0.55;
}
.m-tri-2 {
  border-left: 40px solid transparent;
  border-right: 40px solid transparent;
  border-bottom: 70px solid var(--green);
  bottom: 20vh;
  left: 3%;
  transform: rotate(-20deg);
  opacity: 0.45;
}
.m-tri-3 {
  border-left: 30px solid transparent;
  border-right: 30px solid transparent;
  border-bottom: 52px solid var(--yellow);
  top: 30%;
  right: 8%;
  transform: rotate(30deg);
  opacity: 0.4;
}
.m-tri-4 {
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-bottom: 86px solid var(--green);
  top: 60%;
  left: 8%;
  transform: rotate(-10deg);
  opacity: 0.35;
}

/* 圆形 */
.m-circle {
  position: absolute;
  border-radius: 50%;
}
.m-circle-1 {
  width: 180px;
  height: 180px;
  border: 6px solid var(--green);
  top: 15vh;
  left: 2%;
  opacity: 0.3;
}
.m-circle-2 {
  width: 120px;
  height: 120px;
  background: var(--yellow);
  top: 40%;
  right: 2%;
  opacity: 0.2;
  mix-blend-mode: multiply;
}
.m-circle-3 {
  width: 200px;
  height: 200px;
  border: 8px dashed var(--yellow);
  bottom: 10%;
  right: 5%;
  opacity: 0.25;
}

/* 波浪线 */
.m-squiggle {
  position: absolute;
  bottom: 30vh;
  left: 10%;
  width: 200px;
  height: 40px;
  background: none;
  border-bottom: 5px solid var(--yellow);
  border-radius: 0 0 50% 50% / 0 0 30px 30px;
  opacity: 0.5;
  transform: rotate(-5deg);
}
.m-squiggle-2 {
  top: 50%;
  left: 50%;
  transform: rotate(10deg);
}

/* 点阵 */
.m-dot-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--dark) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.05;
}
.m-dot-sm {
  background-size: 20px 20px;
  opacity: 0.04;
}

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  border: 2.5px solid var(--dark);
  transition: transform var(--transition), box-shadow var(--transition);
  min-height: 44px;
  white-space: nowrap;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--dark); }
.btn:active { transform: none; box-shadow: none; }

.btn-primary {
  background: var(--green);
  color: var(--dark);
}
.btn-outline {
  background: transparent;
  color: var(--dark);
}
.btn-sm { padding: 8px 18px; font-size: 0.875rem; min-height: 40px; }

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--dark);
  display: flex;
  align-items: center;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  margin-bottom: -6vh;
  z-index: 1;
}

/* Memphis hero 背景纹理 */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 18px,
      rgba(135,255,113,0.07) 18px,
      rgba(135,255,113,0.07) 20px
    ),
    radial-gradient(circle at 75% 40%, rgba(255,206,92,0.18) 0%, transparent 55%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  padding: 80px 40px 120px;
  margin-left: max(40px, 6vw);
}

.hero-eyebrow small {
  display: inline-block;
  background: var(--yellow);
  color: var(--dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 4px 14px;
  border: 2px solid var(--dark);
  border-radius: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-h1 {
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(250,255,248,0.8);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-cta-row .btn-outline {
  color: var(--white);
  border-color: var(--white);
}
.hero-cta-row .btn-outline:hover {
  background: rgba(255,255,255,0.1);
}

.hero-deco {
  position: absolute;
  right: -2%;
  bottom: 8%;
  z-index: 1;
  pointer-events: none;
}
.hero-bg-text {
  font-size: clamp(6rem, 16vw, 14rem);
  font-weight: 700;
  color: rgba(135,255,113,0.06);
  letter-spacing: -0.04em;
  user-select: none;
  white-space: nowrap;
}

/* ── 面包屑 ── */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--dark); }

/* ── 页面头部（非首页） ── */
.page-header {
  background: var(--dark);
  color: var(--white);
  padding: 80px 0 60px;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
  margin-bottom: 0;
  z-index: 1;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 16px,
    rgba(135,255,113,0.06) 16px,
    rgba(135,255,113,0.06) 18px
  );
}
.page-header-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-header .breadcrumb { color: rgba(250,255,248,0.65); }
.page-header .breadcrumb a { color: rgba(250,255,248,0.65); }

.eyebrow-row {
  margin-bottom: 12px;
}
.eyebrow-row small {
  display: inline-block;
  background: var(--yellow);
  color: var(--dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 12px;
  border: 2px solid var(--dark);
  border-radius: 4px;
  text-transform: uppercase;
}

.page-h1 {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.page-lead {
  font-size: 1.05rem;
  color: rgba(250,255,248,0.8);
  max-width: 620px;
  line-height: 1.7;
}
.page-date, .page-date-mod {
  display: inline-block;
  font-size: 0.85rem;
  color: rgba(250,255,248,0.6);
  margin-top: 8px;
  margin-right: 16px;
}

/* ── 布局：侧边 + 主内容 ── */
.layout-with-aside {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 60px;
  position: relative;
  z-index: 2;
}

.sidebar-left {
  padding-right: 32px;
  border-right: 2px solid var(--dark);
}

.sidebar-inner {
  position: sticky;
  top: 20px;
}

.sidebar-inner > small {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--dark);
}
.sidebar-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.main-content-area {
  padding-left: 40px;
}

/* ── 正文 details/nav ── */
.nav-details {
  margin-bottom: 20px;
}
.nav-details summary {
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1.5px solid var(--dark);
  margin-bottom: 8px;
}
.nav-details summary::-webkit-details-marker { display: none; }
.nav-details summary::after {
  content: '▾';
  margin-left: auto;
  transition: transform var(--transition);
}
.nav-details[open] summary::after { transform: rotate(180deg); }

.nav-details menu,
.nav-details ul {
  padding: 4px 0;
}
.nav-details menu li,
.nav-details ul li {
  border-bottom: 1px dashed rgba(25,38,23,0.15);
}
.nav-details menu li a,
.nav-details ul li a {
  display: block;
  padding: 8px 4px;
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--text);
  transition: color var(--transition), background var(--transition);
  border-radius: 4px;
  min-height: 40px;
  line-height: 1.4;
  display: flex;
  align-items: center;
}
.nav-details menu li a:hover,
.nav-details ul li a:hover {
  color: var(--dark2);
  background: rgba(135,255,113,0.12);
  padding-left: 10px;
}
.nav-details menu li a[aria-current="page"] {
  color: var(--dark);
  font-weight: 600;
  background: var(--green);
  padding-left: 10px;
}

.aside-cta, .aside-tip {
  margin-top: 24px;
  padding: 16px;
  background: var(--off-white);
  border: 2px solid var(--dark);
  border-radius: var(--radius-sm);
}
.aside-tip small {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.aside-tip p {
  font-size: 0.875rem;
  line-height: 1.55;
  margin-bottom: 12px;
}

/* ── 主内容 wrap ── */
main { position: relative; z-index: 2; }
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 24px;
}

/* ── 散文样式 ── */
.prose {
  max-width: 780px;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
}
.prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 36px 0 12px;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--green);
}
.prose h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 28px 0 10px;
}
.prose p { margin-bottom: 18px; }
.prose ul, .prose ol {
  list-style: disc;
  padding-left: 28px;
  margin-bottom: 18px;
}
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 8px; }
.prose strong { font-weight: 600; }
.prose a { color: var(--dark2); font-weight: 500; }
.prose blockquote {
  border-left: 4px solid var(--green);
  padding: 12px 20px;
  margin: 24px 0;
  background: rgba(135,255,113,0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.95rem;
}
.prose th, .prose td {
  padding: 10px 14px;
  border: 1.5px solid var(--dark);
  text-align: left;
}
.prose th {
  background: var(--dark);
  color: var(--white);
  font-weight: 600;
}
.prose tr:nth-child(even) td { background: rgba(135,255,113,0.07); }
.prose-legal { font-size: 0.975rem; }

/* ── 章节标题 ── */
.section-header {
  margin-bottom: 24px;
}
.section-header small {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.section-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dark);
  position: relative;
  display: inline-block;
}
.section-header h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 40px;
  height: 4px;
  background: var(--yellow);
  border-radius: 2px;
}

/* ── 卡片网格 ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.card-grid > li { display: contents; }

.card {
  border: 2.5px solid var(--dark);
  border-radius: var(--radius);
  padding: 20px 22px;
  background: var(--white);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: var(--yellow);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 5px 5px 0 var(--dark);
}
.card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.card h3 a {
  text-decoration: none;
  color: var(--dark);
}
.card h3 a:hover { text-decoration: underline; }
.card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.card-date {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 10px;
}
.card-sm { padding: 14px 16px; }

/* ── 相关链接列表 ── */
.related-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.related-list li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 2px solid var(--dark);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--dark);
  background: var(--white);
  transition: background var(--transition), transform var(--transition);
  min-height: 48px;
}
.related-list li a::before {
  content: '→';
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
}
.related-list li a:hover {
  background: var(--green);
  transform: translateX(4px);
}

/* ── about-quick-links / policy-points ── */
.about-quick-links,
.policy-points {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.about-quick-links > li,
.policy-points > li {
  display: contents;
}

/* ── 定价比较块 ── */
.pricing-compare-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 720px;
}
.price-card {
  border: 2.5px solid var(--dark);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}
.price-free { background: var(--off-white); }
.price-vip {
  background: var(--dark);
  color: var(--white);
}
.price-badge {
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--green);
  color: var(--dark);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 12px;
  border: 2px solid var(--dark);
  border-radius: 20px;
  letter-spacing: 0.06em;
}
.price-label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
  opacity: 0.7;
}
.price-num {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--green);
}
.price-free .price-num { color: var(--dark); }
.price-features {
  list-style: none;
  margin-bottom: 24px;
}
.price-features li {
  padding: 6px 0;
  font-size: 0.925rem;
  border-bottom: 1px dashed rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  gap: 8px;
}
.price-free .price-features li { border-bottom-color: rgba(25,38,23,0.12); }
.price-features li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
}

/* ── 联系表单 ── */
.contact-form {
  max-width: 560px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--dark);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--dark);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text);
  font-size: 0.975rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(135,255,113,0.25);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ── 页脚 ── */
.site-footer {
  background: var(--dark);
  color: var(--white);
  position: relative;
  z-index: 2;
  margin-top: 40px;
  padding-bottom: calc(var(--bnav-h) + 10px);
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .footer-logo-text {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: rgba(250,255,248,0.65);
  line-height: 1.65;
  margin-bottom: 14px;
}
.footer-brand address {
  font-style: normal;
  font-size: 0.875rem;
}
.footer-brand address a {
  color: var(--yellow);
  text-decoration: none;
}
.footer-brand address a:hover { text-decoration: underline; }

.footer-links-col > small {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(250,255,248,0.5);
  margin-bottom: 6px;
}
.footer-links-col h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-links-col ul li {
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-links-col ul li a {
  display: block;
  padding: 7px 0;
  font-size: 0.875rem;
  color: rgba(250,255,248,0.7);
  text-decoration: none;
  transition: color var(--transition), padding-left var(--transition);
  min-height: 40px;
  line-height: 1.5;
  display: flex;
  align-items: center;
}
.footer-links-col ul li a:hover {
  color: var(--green);
  padding-left: 6px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.copyright {
  font-size: 0.825rem;
  color: rgba(250,255,248,0.45);
}
.footer-bottom nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom nav a {
  font-size: 0.825rem;
  color: rgba(250,255,248,0.55);
  text-decoration: none;
}
.footer-bottom nav a:hover { color: var(--green); }

/* ── 底部固定导航条 ── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bnav-h);
  background: var(--dark);
  border-top: 2.5px solid var(--green);
  display: flex;
  align-items: stretch;
  z-index: 900;
}
.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: rgba(250,255,248,0.6);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 6px 4px;
  min-height: var(--bnav-h);
  transition: color var(--transition), background var(--transition);
  border-right: 1px solid rgba(255,255,255,0.06);
}
.bottom-nav-item:last-child { border-right: none; }
.bottom-nav-item:hover,
.bottom-nav-item.active {
  color: var(--green);
  background: rgba(135,255,113,0.08);
}
.bottom-nav-item.btn-cta-nav {
  background: var(--green);
  color: var(--dark);
  font-weight: 700;
}
.bottom-nav-item.btn-cta-nav:hover {
  background: #6de058;
  color: var(--dark);
}
.bnav-icon {
  font-size: 1.1rem;
  line-height: 1;
}

/* ── FAQ 专属样式 ── */
.faq-prose :is(h2, h3) {
  cursor: pointer;
}

/* ── content-section ── */
.content-section {
  background: var(--white);
  border-radius: var(--radius);
  border: 2px solid var(--dark);
  padding: 32px;
  margin-bottom: 8px;
}

/* ── 动效：滚动视差 + 列表交错 ── */
@media (prefers-reduced-motion: no-preference) {
  .card {
    animation: fadeUp 0.4s ease both;
  }
  .card:nth-child(1) { animation-delay: 0s; }
  .card:nth-child(2) { animation-delay: 0.06s; }
  .card:nth-child(3) { animation-delay: 0.12s; }
  .card:nth-child(4) { animation-delay: 0.18s; }
  .card:nth-child(5) { animation-delay: 0.24s; }
  .card:nth-child(6) { animation-delay: 0.30s; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .hero-h1 {
    animation: heroIn 0.6s ease both;
  }
  .hero-sub {
    animation: heroIn 0.6s 0.15s ease both;
  }
  .hero-cta-row {
    animation: heroIn 0.6s 0.28s ease both;
  }
  @keyframes heroIn {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ── 响应式断点 ── */
@media (max-width: 900px) {
  .layout-with-aside {
    grid-template-columns: 1fr;
    padding: 24px 16px 48px;
  }
  .sidebar-left {
    border-right: none;
    border-bottom: 2px solid var(--dark);
    padding-right: 0;
    padding-bottom: 24px;
    margin-bottom: 28px;
  }
  .sidebar-inner { position: static; }
  .main-content-area { padding-left: 0; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 32px 16px 28px;
  }

  .pricing-compare-block {
    grid-template-columns: 1fr;
  }

  .about-quick-links,
  .policy-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero { clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%); }
  .hero-inner {
    padding: 60px 20px 100px;
    margin-left: 0;
  }
  .hero-bg-text { display: none; }
  .hero-cta-row { flex-direction: column; }
  .hero-cta-row .btn { width: 100%; justify-content: center; }

  .page-header { padding: 60px 0 44px; clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%); }
  .page-header-inner { padding: 0 16px; }

  .wrap { padding: 28px 16px 16px; }
  .content-section { padding: 20px 16px; }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .m-circle-1, .m-circle-2, .m-circle-3 { display: none; }
  .m-squiggle { display: none; }

  .bottom-nav-item span:last-child { font-size: 0.65rem; }
}

@media (max-width: 375px) {
  body { font-size: 1rem; }
  .hero-h1 { font-size: 1.75rem; }
  .bottom-nav-item { gap: 1px; }
}