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

/* ── 变量 ─────────────────────────────────────────── */
:root {
  --cream:   #f5e6c8;
  --amber:   #d4a574;
  --dark:    #262117;
  --dark80:  rgba(38,33,23,.8);
  --dark40:  rgba(38,33,23,.4);
  --dark10:  rgba(38,33,23,.08);
  --amber40: rgba(212,165,116,.4);
  --amber15: rgba(212,165,116,.15);
  --cream80: rgba(245,230,200,.8);
  --nav-h:   3.5rem;
  --max-w:   1180px;
  --font-serif: 'Cormorant', 'Palatino Linotype', 'Book Antiqua', Georgia, serif;
  --font-sans:  'Montserrat', 'Helvetica Neue', Arial, sans-serif;
}

/* ── 重置与基础 ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 17px;
  scroll-behavior: smooth;
  background: var(--cream);
  color: var(--dark);
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  background: var(--cream);
  color: var(--dark);
  overflow-x: hidden;
  min-height: 100vh;
  padding-bottom: var(--nav-h);
}

/* ── 胶粒肌理层 ──────────────────────────────────── */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* ── 光晕漏光层 ──────────────────────────────────── */
.light-leak {
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  border-radius: 50%;
  filter: blur(80px);
  animation: leakPulse 8s ease-in-out infinite alternate;
}
.light-leak {
  width: 380px; height: 380px;
  top: -120px; right: -80px;
  background: radial-gradient(circle, rgba(212,165,116,.28) 0%, transparent 70%);
}
.light-leak--side {
  width: 260px; height: 260px;
  top: 40%; left: -80px;
  background: radial-gradient(circle, rgba(245,230,200,.22) 0%, transparent 70%);
}
.light-leak--corner {
  width: 300px; height: 300px;
  bottom: 10%; right: -60px;
  background: radial-gradient(circle, rgba(212,165,116,.2) 0%, transparent 70%);
}
.light-leak--warm {
  width: 420px; height: 320px;
  top: -60px; left: 30%;
  background: radial-gradient(ellipse, rgba(212,165,116,.18) 0%, transparent 70%);
}
@keyframes leakPulse {
  0%   { opacity: .7; transform: scale(1); }
  100% { opacity: 1;  transform: scale(1.12); }
}

/* ── 导航（底部固定条） ───────────────────────────── */
.site-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--dark);
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: 0 1rem;
  z-index: 1000;
  border-top: 2px solid var(--amber);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.site-nav::-webkit-scrollbar { display: none; }

.nav-brand {
  flex-shrink: 0;
  width: 2.2rem; height: 2.2rem;
  display: flex; align-items: center; justify-content: center;
  background: var(--amber);
  color: var(--dark);
  text-decoration: none;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.2rem;
  border-radius: 2px;
  min-height: 40px; min-width: 40px;
}
.nav-logo-img { width: 100%; height: 100%; object-fit: contain; }
.nav-logo-text { line-height: 1; }

.nav-list {
  display: flex;
  list-style: none;
  gap: .25rem;
  flex: 1;
  overflow: hidden;
}
.nav-list li a {
  display: block;
  padding: .55rem .75rem;
  color: var(--cream);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .04em;
  white-space: nowrap;
  min-height: 40px;
  display: flex; align-items: center;
  transition: color .2s;
}
.nav-list li a:hover,
.nav-list li a[aria-current] {
  color: var(--amber);
}

.nav-cta {
  flex-shrink: 0;
  padding: .5rem 1rem;
  background: var(--amber);
  color: var(--dark);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  min-height: 40px;
  display: flex; align-items: center;
  border-radius: 2px;
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.nav-cta:hover { background: var(--cream); color: var(--dark); }

/* ── 面包屑 ──────────────────────────────────────── */
.breadcrumb {
  padding: 1.2rem 0 0;
  font-size: .78rem;
  font-family: var(--font-sans);
  letter-spacing: .04em;
}
.breadcrumb ol {
  display: flex; flex-wrap: wrap; gap: .3rem;
  list-style: none;
}
.breadcrumb li { display: flex; align-items: center; color: var(--dark40); }
.breadcrumb li + li::before { content: '／'; margin-right: .3rem; }
.breadcrumb a { color: var(--amber); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ── wrap 容器 ───────────────────────────────────── */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── 首页 Hero ────────────────────────────────────── */
.hero-section {
  min-height: 100vh;
  display: flex; align-items: flex-end;
  padding-bottom: calc(var(--nav-h) + 3rem);
  position: relative;
  overflow: hidden;
}
.hero-inner {
  width: 100%;
  text-align: right;
  position: relative;
  z-index: 2;
  padding: 2rem 0;
}
.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1rem;
}
.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--dark);
  margin-bottom: 1.5rem;
  letter-spacing: -.01em;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--dark80);
  max-width: 520px;
  margin-left: auto;
  line-height: 1.8;
}
.hero-bg-text {
  position: absolute;
  right: -1rem;
  top: 50%; transform: translateY(-50%);
  font-family: var(--font-serif);
  font-size: clamp(10rem, 28vw, 22rem);
  font-weight: 700;
  color: rgba(212,165,116,.07);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -.04em;
  z-index: 1;
}

/* ── 通用页头 ─────────────────────────────────────── */
.page-header-section,
.about-header-section,
.privacy-header-section,
.article-header-section {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--amber40);
  position: relative;
  overflow: hidden;
}
.page-header-inner,
.about-header-inner,
.privacy-header-inner,
.article-header-inner {
  position: relative; z-index: 2;
  text-align: right;
}
.page-type-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cream);
  background: var(--dark);
  padding: .2rem .65rem;
  margin-bottom: .9rem;
}
.page-h1, .about-h1, .privacy-h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--dark);
  margin-bottom: .8rem;
}
.page-desc, .about-desc, .privacy-desc {
  font-size: 1rem;
  color: var(--dark80);
  max-width: 480px;
  margin-left: auto;
  line-height: 1.75;
}
.header-bg-num {
  position: absolute;
  right: -1rem; top: 50%; transform: translateY(-50%);
  font-family: var(--font-serif);
  font-size: clamp(5rem, 16vw, 12rem);
  font-weight: 700;
  color: rgba(212,165,116,.06);
  line-height: 1;
  pointer-events: none; user-select: none;
  z-index: 1;
}

/* ── 文章页头 ─────────────────────────────────────── */
.article-header-section {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 2px solid var(--amber);
}
.article-header-inner { text-align: right; }
.article-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--amber);
  text-decoration: none;
  margin-bottom: .7rem;
  border-bottom: 1px solid var(--amber40);
  padding-bottom: .15rem;
}
.article-eyebrow:hover { color: var(--dark); }
.article-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--dark);
  margin-bottom: .7rem;
}
.article-meta {
  display: flex; gap: 1rem; justify-content: flex-end;
  flex-wrap: wrap; margin-bottom: .7rem;
}
.article-date, .article-mod-date {
  font-family: var(--font-sans);
  font-size: .75rem;
  color: var(--amber);
  letter-spacing: .06em;
}
.article-mod-date { color: var(--dark40); }
.article-desc {
  font-size: .95rem;
  color: var(--dark80);
  max-width: 480px;
  margin-left: auto;
  line-height: 1.75;
}

/* ── Hero 图片（Polaroid 框） ─────────────────────── */
.article-hero-section { padding: 2rem 0; }
.hero-img-wrap { display: inline-block; }
.polaroid-frame {
  border: 10px solid #fff;
  border-bottom: 32px solid #fff;
  box-shadow: 3px 4px 18px rgba(38,33,23,.25);
  transform: rotate(-.5deg);
  max-width: 680px;
  display: block;
}
.article-hero-img {
  display: block;
  width: 100%;
  height: auto;
  filter: sepia(.35) contrast(1.05) saturate(.85);
}

/* ── 内容区（main + aside） ──────────────────────── */
.content-section {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3rem;
  padding: 3rem 0;
  align-items: start;
}
.content-section--narrow {
  grid-template-columns: 1fr;
}

.content-main { min-width: 0; }
.content-main--full { max-width: 720px; }

/* ── 正文样式 ─────────────────────────────────────── */
.page-content {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--dark);
}
.page-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 700;
  margin: 2.2rem 0 .6rem;
  color: var(--dark);
  border-bottom: 2px solid var(--amber);
  padding-bottom: .4rem;
}
.page-content h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.6rem 0 .4rem;
  color: var(--dark);
}
.page-content p { margin-bottom: 1.1rem; }
.page-content ul, .page-content ol {
  padding-left: 1.4rem;
  margin-bottom: 1.1rem;
}
.page-content li { margin-bottom: .4rem; }
.page-content a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-content a:hover { color: var(--dark); }
.page-content blockquote {
  border-left: 3px solid var(--amber);
  padding: .7rem 1.2rem;
  margin: 1.4rem 0;
  background: var(--amber15);
  font-style: italic;
  color: var(--dark80);
}
.page-content time { color: var(--amber); font-weight: 600; }
.page-content strong { font-weight: 700; color: var(--dark); }
.page-content code {
  font-size: .88em;
  background: var(--dark10);
  padding: .1em .35em;
  border-radius: 2px;
}
.page-content pre {
  background: var(--dark);
  color: var(--cream);
  padding: 1rem;
  overflow-x: auto;
  margin: 1.2rem 0;
  font-size: .88rem;
}

/* FAQ 内容特殊样式 */
.faq-content details {
  border-bottom: 1px solid var(--amber40);
  padding: .8rem 0;
}
.faq-content summary {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--dark);
  padding: .3rem 0;
  list-style: none;
  display: flex; align-items: center; gap: .6rem;
}
.faq-content summary::before {
  content: '▸';
  color: var(--amber);
  font-size: .85rem;
  transition: transform .2s;
}
.faq-content details[open] summary::before { transform: rotate(90deg); }

/* ── 侧边栏 ───────────────────────────────────────── */
.content-aside { min-width: 0; }
.aside-block {
  padding: 1.2rem;
  border: 1px solid var(--amber40);
  margin-bottom: 1.5rem;
  background: rgba(245,230,200,.6);
}
.aside-block--amber {
  border-color: var(--amber);
  border-left: 3px solid var(--amber);
  background: var(--amber15);
}
.aside-block h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: .25rem;
}
.aside-block .subtitle {
  font-size: .78rem;
  color: var(--dark40);
  margin-bottom: .9rem;
  line-height: 1.5;
}
.aside-nav-list {
  list-style: none;
  padding: 0;
}
.aside-nav-list li { border-bottom: 1px solid var(--amber40); }
.aside-nav-list li:last-child { border-bottom: none; }
.aside-nav-list a {
  display: block;
  padding: .5rem 0;
  color: var(--dark);
  text-decoration: none;
  font-size: .85rem;
  font-family: var(--font-sans);
  font-weight: 500;
  transition: color .18s, padding-left .18s;
}
.aside-nav-list a:hover { color: var(--amber); padding-left: .35rem; }
.aside-related-list { border: none; }

.aside-cta {
  display: inline-block;
  padding: .55rem 1.1rem;
  background: var(--dark);
  color: var(--cream);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  transition: background .2s;
  min-height: 40px;
  display: flex; align-items: center;
}
.aside-cta:hover { background: var(--amber); color: var(--dark); }

/* ── FAQ 侧边快速链接 ─────────────────────────────── */
.faq-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .65rem 0;
  border-bottom: 1px solid var(--amber40);
  text-decoration: none;
  color: var(--dark);
  font-family: var(--font-sans);
  font-size: .88rem;
  font-weight: 500;
  transition: color .18s;
}
.faq-link:last-child { border-bottom: none; }
.faq-link:hover { color: var(--amber); }
.faq-arrow { color: var(--amber); font-size: .8rem; }
.faq-num { flex: 1; padding-right: .5rem; }

/* ── 卡片区（首页） ──────────────────────────────── */
.cards-section {
  padding: 3rem 0;
  border-top: 1px solid var(--amber40);
}
.cards-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: .4rem;
}
.cards-section .subtitle {
  font-size: .88rem;
  color: var(--dark40);
  margin-bottom: 2rem;
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.child-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.25rem;
  background: var(--cream80);
  border: 1px solid var(--amber40);
  border-bottom: 3px solid var(--amber);
  border-radius: 0;
  text-decoration: none;
  color: var(--dark);
  transition: transform .22s, box-shadow .22s, border-bottom-color .22s;
}
.child-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(38,33,23,.14);
  border-bottom-color: var(--dark);
}
.child-card strong {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
}
.child-card span {
  font-size: .83rem;
  color: var(--dark80);
  line-height: 1.6;
}

/* ── 子页列表（栏目页） ──────────────────────────── */
.children-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--amber40);
}
.children-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.5vw, 2.1rem);
  font-weight: 700;
  margin-bottom: .3rem;
}
.children-section .subtitle {
  font-size: .85rem;
  color: var(--dark40);
  margin-bottom: 1.8rem;
}
.children-grid {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.child-block {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--amber40);
  border-left: 4px solid var(--amber);
  background: rgba(245,230,200,.5);
  text-decoration: none;
  color: var(--dark);
  transition: border-left-color .2s, background .2s;
}
.child-block:hover {
  border-left-color: var(--dark);
  background: var(--cream);
}
.child-block strong {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
}
.child-block span {
  font-size: .82rem;
  color: var(--dark80);
  line-height: 1.6;
}
.child-date {
  font-size: .73rem;
  color: var(--amber);
  font-family: var(--font-sans);
  letter-spacing: .04em;
}

/* ── 延伸阅读 ─────────────────────────────────────── */
.related-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--amber40);
}
.related-section h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: .3rem;
}
.related-section .subtitle {
  font-size: .85rem;
  color: var(--dark40);
  margin-bottom: 1.5rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.related-link {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: 1rem;
  border: 1px solid var(--amber40);
  border-bottom: 3px solid var(--amber);
  text-decoration: none;
  color: var(--dark);
  transition: border-bottom-color .2s, transform .2s;
}
.related-link:hover { border-bottom-color: var(--dark); transform: translateY(-2px); }
.related-link strong { font-family: var(--font-serif); font-size: 1rem; font-weight: 700; line-height: 1.35; }
.related-link time { font-size: .73rem; color: var(--amber); font-family: var(--font-sans); }

/* ── About 内容 ──────────────────────────────────── */
.about-content, .privacy-content {
  font-size: 1.02rem;
  line-height: 1.85;
}

/* ── Privacy footer links ─────────────────────────── */
.privacy-footer-links {
  display: flex; gap: 1.5rem; flex-wrap: wrap;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--amber40);
}
.privacy-footer-links a {
  color: var(--amber);
  text-decoration: none;
  font-weight: 600;
  font-size: .9rem;
  min-height: 40px;
  display: flex; align-items: center;
}
.privacy-footer-links a:hover { text-decoration: underline; }

/* ── h2 + subtitle パターン ─────────────────────── */
.content-section h2,
.article-body h2 { /* handled in page-content */ }

/* ── 页脚 ─────────────────────────────────────────── */
.site-footer {
  background: var(--dark);
  color: var(--cream);
  margin-bottom: var(--nav-h);
}
.footer-form-block {
  padding: 2rem 1.25rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(212,165,116,.25);
}
.footer-form-block p {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--amber);
  white-space: nowrap;
}
.footer-form {
  display: flex; gap: .5rem; flex: 1; min-width: 220px;
}
.footer-form input[type="email"] {
  flex: 1;
  padding: .55rem .9rem;
  background: transparent;
  border: 1px solid rgba(212,165,116,.4);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: .85rem;
  min-height: 40px;
  outline: none;
  border-radius: 0;
}
.footer-form input[type="email"]::placeholder { color: rgba(245,230,200,.4); }
.footer-form input[type="email"]:focus { border-color: var(--amber); }
.footer-form button {
  padding: .55rem 1.2rem;
  background: var(--amber);
  color: var(--dark);
  border: none;
  font-family: var(--font-sans);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  min-height: 40px;
  min-width: 60px;
  transition: background .2s;
}
.footer-form button:hover { background: var(--cream); }

.footer-bar {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
  white-space: nowrap;
}
.footer-bar nav { flex: 1; }
.footer-nav-list {
  display: flex; flex-wrap: wrap; gap: .25rem 1rem;
  list-style: none; padding: 0;
}
.footer-nav-list a {
  color: rgba(245,230,200,.65);
  text-decoration: none;
  font-size: .75rem;
  font-family: var(--font-sans);
  min-height: 40px;
  display: flex; align-items: center;
  transition: color .18s;
}
.footer-nav-list a:hover { color: var(--amber); }
.footer-copy {
  font-size: .73rem;
  color: rgba(245,230,200,.35);
  font-family: var(--font-sans);
  white-space: nowrap;
}

/* ── Scroll Reveal 动效 ───────────────────────────── */
.reveal,
.reveal-stagger {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible,
.reveal-stagger.visible {
  opacity: 1;
  transform: none;
}
.reveal-stagger:nth-child(1) { transition-delay: .05s; }
.reveal-stagger:nth-child(2) { transition-delay: .12s; }
.reveal-stagger:nth-child(3) { transition-delay: .19s; }
.reveal-stagger:nth-child(4) { transition-delay: .26s; }
.reveal-stagger:nth-child(5) { transition-delay: .33s; }
.reveal-stagger:nth-child(6) { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger {
    opacity: 1; transform: none; transition: none;
  }
  .light-leak { animation: none; }
}

/* ── 断点 768px ──────────────────────────────────── */
@media (max-width: 768px) {
  .content-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .content-aside { order: 2; }
  .content-main  { order: 1; }

  .nav-list {
    display: none;
  }

  .hero-h1 { text-align: right; }
  .hero-desc { max-width: 100%; }

  .footer-form-block { flex-direction: column; align-items: flex-start; }
  .footer-bar { flex-direction: column; align-items: flex-start; gap: .75rem; }
  .footer-copy { margin-top: .5rem; }

  .cards-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}

/* ── 断点 480px ──────────────────────────────────── */
@media (max-width: 480px) {
  html { font-size: 16px; }
  .wrap { padding: 0 1rem; }
  .hero-h1 { font-size: 2.6rem; }
  .hero-section { padding-bottom: calc(var(--nav-h) + 2rem); }
  .polaroid-frame { transform: none; }
  .footer-form { flex-direction: column; }
  .footer-form input[type="email"],
  .footer-form button { width: 100%; }
}

/* ── 超宽屏 ──────────────────────────────────────── */
@media (min-width: 1280px) {
  .nav-list { display: flex; }
}