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

/* ============================================================
   CSS 变量 & 重置
   ============================================================ */
:root {
  --cream: #f5e6c8;
  --warm: #d4a574;
  --ink: #262117;
  --ink80: rgba(38,33,23,0.8);
  --ink40: rgba(38,33,23,0.4);
  --warm-dark: #b8834a;
  --warm-light: #e8c99a;
  --cream-dark: #e8d5ad;
  --bnav-h: 64px;
  --header-h: 56px;
  --font-head: 'Anton', 'Impact', sans-serif;
  --font-body: 'Epilogue', 'Segoe UI', system-ui, sans-serif;
  --scroll-top: calc(var(--bnav-h));
  --radius: 0px;
  --grain-opacity: 0.045;
  --shadow-card: 4px 6px 18px rgba(38,33,23,0.22);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body.vintage-body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

article[id] {
  scroll-margin-top: calc(var(--header-h) + var(--bnav-h) + 8px);
}

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

a {
  color: var(--warm-dark);
  text-decoration: none;
  transition: color 0.2s, opacity 0.2s;
}

a:hover {
  color: var(--ink);
}

ul, ol {
  list-style: none;
}

/* ============================================================
   胶片颗粒 / VHS 叠加层
   ============================================================ */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23noise)' opacity='0.07'/%3E%3C/svg%3E");
  background-repeat: repeat;
  opacity: var(--grain-opacity);
  mix-blend-mode: multiply;
}

.light-leak {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 40vh;
  z-index: 999;
  pointer-events: none;
  background: radial-gradient(ellipse at 15% 0%, rgba(212,165,116,0.25) 0%, transparent 60%),
              radial-gradient(ellipse at 85% 0%, rgba(245,230,200,0.18) 0%, transparent 55%);
  animation: lightLeakAnim 8s ease-in-out infinite alternate;
}

@keyframes lightLeakAnim {
  0%   { opacity: 0.6; transform: scaleX(1); }
  50%  { opacity: 1;   transform: scaleX(1.04); }
  100% { opacity: 0.7; transform: scaleX(0.97); }
}

.vhs-scanline {
  position: fixed;
  inset: 0;
  z-index: 998;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(38,33,23,0.018) 3px,
    rgba(38,33,23,0.018) 4px
  );
  animation: vhsTrack 6s linear infinite;
}

@keyframes vhsTrack {
  0%   { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
  .light-leak, .vhs-scanline, .grain-overlay {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   顶部 Header（固定）
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--ink);
  border-bottom: 2px solid var(--warm);
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-brand {
  flex-shrink: 0;
}

.brand-logo {
  height: 36px;
  width: auto;
  filter: sepia(0.3) contrast(1.1);
}

.brand-text {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--warm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-nav {
  flex: 1;
  overflow: hidden;
}

.header-nav p {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  align-items: center;
}

.header-nav p::-webkit-scrollbar {
  display: none;
}

.header-nav p a {
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
  padding: 0.45rem 0.7rem;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.header-nav p a:hover {
  color: var(--warm);
  border-color: var(--warm);
  background: rgba(212,165,116,0.1);
}

/* ============================================================
   Hero
   ============================================================ */
.hero-strip {
  background: linear-gradient(135deg, var(--ink) 0%, #3a2e1c 100%);
  min-height: 45vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-strip::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.06;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.hero-media {
  flex: 0 0 auto;
  width: clamp(160px, 28vw, 320px);
}

.polaroid-wrap {
  background: var(--cream);
  padding: 10px 10px 32px 10px;
  box-shadow: 6px 8px 24px rgba(0,0,0,0.5);
  transform: rotate(-2deg);
  transition: transform 0.3s ease;
}

.polaroid-wrap:hover {
  transform: rotate(0deg) scale(1.02);
}

.polaroid-wrap img {
  width: 100%;
  height: auto;
  filter: sepia(0.25) contrast(1.05) saturate(0.85);
  display: block;
}

.hero-img {
  width: 100%;
}

.hero-copy {
  flex: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero-h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--warm);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.1;
  text-shadow: 2px 3px 0 rgba(0,0,0,0.4);
}

.hero-sub {
  font-size: 1rem;
  color: var(--cream-dark);
  max-width: 420px;
  line-height: 1.6;
  opacity: 0.9;
}

.hero-cta {
  display: inline-block;
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  padding: 0.75rem 2rem;
  min-height: 48px;
  border: 2px solid var(--warm-dark);
  transition: background 0.2s, transform 0.15s;
  text-transform: uppercase;
}

.hero-cta:hover {
  background: var(--warm-dark);
  color: var(--cream);
  transform: translateY(-2px);
}

/* ============================================================
   页面主体布局（aside + main）
   ============================================================ */
.page-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem calc(var(--bnav-h) + 2rem);
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

/* aside 在左 */
.page-aside {
  flex: 0 0 220px;
  position: sticky;
  top: calc(var(--header-h) + 12px);
  max-height: calc(100vh - var(--header-h) - 24px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--warm) transparent;
}

.aside-inner {
  background: var(--ink);
  border: 2px solid var(--warm);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
}

.aside-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--warm), var(--cream), var(--warm));
}

.aside-title {
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--warm);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.aside-title span {
  display: inline-block;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.aside-links li a {
  display: block;
  color: var(--cream-dark);
  font-size: 0.85rem;
  padding: 0.5rem 0.6rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  border-left: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.aside-links li a:hover {
  color: var(--warm);
  border-left-color: var(--warm);
  background: rgba(212,165,116,0.08);
}

.aside-badge {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(212,165,116,0.3);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-label {
  font-size: 0.75rem;
  color: var(--warm);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e05c5c;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

@media (prefers-reduced-motion: reduce) {
  .badge-dot { animation: none; }
}

/* ============================================================
   正文区
   ============================================================ */
.page-main {
  flex: 1;
  min-width: 0;
}

.main-article {
  /* article 直接子元素是 section */
}

.content-section {
  /* page.content 落点 */
}

/* page.content 内部元素样式 */
.content-section h2,
.page-main h2 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--ink);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--warm);
  position: relative;
}

.content-section h2 span,
.page-main h2 span {
  display: inline-block;
}

.content-section h3,
.page-main h3 {
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--warm-dark);
  letter-spacing: 0.02em;
  margin: 2rem 0 0.75rem;
}

.content-section h3 span,
.page-main h3 span {
  display: inline-block;
}

.content-section p,
.page-main p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  margin-bottom: 1rem;
}

.content-section ul,
.content-section ol,
.page-main ul,
.page-main ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.content-section ul { list-style: disc; }
.content-section ol { list-style: decimal; }

.content-section li,
.page-main li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

.content-section a,
.page-main a {
  color: var(--warm-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.content-section a:hover,
.page-main a:hover {
  color: var(--ink);
}

.content-section blockquote,
.page-main blockquote {
  border-left: 4px solid var(--warm);
  padding: 0.75rem 1.25rem;
  background: rgba(212,165,116,0.1);
  margin: 1.5rem 0;
  font-style: italic;
}

.content-section table,
.page-main table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.content-section th,
.page-main th {
  background: var(--ink);
  color: var(--warm);
  font-family: var(--font-head);
  letter-spacing: 0.05em;
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.content-section td,
.page-main td {
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid rgba(38,33,23,0.15);
}

.content-section tr:nth-child(even) td,
.page-main tr:nth-child(even) td {
  background: rgba(212,165,116,0.08);
}

/* 卡片（content 内若有） */
.content-section .card,
.page-main .card {
  background: var(--cream-dark);
  border: 1px solid var(--warm);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.content-section .card:hover,
.page-main .card:hover {
  transform: translateY(-3px);
  box-shadow: 6px 10px 24px rgba(38,33,23,0.28);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--ink);
  color: var(--cream-dark);
  border-top: 3px solid var(--warm);
  padding-bottom: var(--bnav-h);
}

.footer-cta-block {
  text-align: center;
  padding: 3rem 1.5rem 2.5rem;
  background: linear-gradient(180deg, #3a2e1c 0%, var(--ink) 100%);
  border-bottom: 1px solid rgba(212,165,116,0.25);
  position: relative;
  overflow: hidden;
}

.footer-cta-block::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--warm), transparent);
}

.footer-cta-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  color: var(--warm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.footer-cta-title span {
  display: inline-block;
}

.footer-cta-desc {
  font-size: 1rem;
  color: var(--cream-dark);
  max-width: 520px;
  margin: 0 auto 1.5rem;
  opacity: 0.85;
  line-height: 1.7;
}

.footer-cta-btn {
  display: inline-block;
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  padding: 0.8rem 2.5rem;
  min-height: 48px;
  text-transform: uppercase;
  border: 2px solid var(--warm-dark);
  transition: background 0.2s, color 0.2s, transform 0.15s;
}

.footer-cta-btn:hover {
  background: var(--cream);
  color: var(--ink);
  transform: translateY(-2px);
}

.footer-main {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.footer-col-title {
  font-family: var(--font-head);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--warm);
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212,165,116,0.3);
}

.footer-col-title span {
  display: inline-block;
}

.footer-col-text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(245,230,200,0.75);
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-nav-list a {
  color: rgba(245,230,200,0.8);
  font-size: 0.875rem;
  padding: 0.3rem 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}

.footer-nav-list a:hover {
  color: var(--warm);
}

.footer-info-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-info-list li {
  font-size: 0.85rem;
  color: rgba(245,230,200,0.75);
  padding-left: 0.75rem;
  position: relative;
  line-height: 1.5;
}

.footer-info-list li::before {
  content: '◦';
  position: absolute;
  left: 0;
  color: var(--warm);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-contact-list li {
  font-size: 0.85rem;
  color: rgba(245,230,200,0.75);
  line-height: 1.5;
}

.contact-label {
  color: var(--warm);
  font-weight: 600;
}

/* footer bar (单行：logo + nav + copyright) */
.footer-bar {
  border-top: 1px solid rgba(212,165,116,0.2);
  padding: 1rem 1.5rem;
}

.footer-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-logo-sm {
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--warm);
  letter-spacing: 0.06em;
}

.footer-bar-inner nav {
  display: flex;
  gap: 1rem;
}

.footer-bar-inner nav a {
  font-size: 0.8rem;
  color: rgba(245,230,200,0.6);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.footer-bar-inner nav a:hover {
  color: var(--warm);
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(245,230,200,0.5);
  text-align: center;
}

/* ============================================================
   底部固定导航条
   ============================================================ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 950;
  background: var(--ink);
  border-top: 2px solid var(--warm);
  height: var(--bnav-h);
  box-shadow: 0 -4px 16px rgba(38,33,23,0.4);
}

.bottom-nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0 0.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.bottom-nav-brand {
  flex-shrink: 0;
  padding: 0 0.5rem;
}

.bottom-logo-img {
  height: 28px;
  width: auto;
  filter: sepia(0.2) contrast(1.1);
}

.bottom-brand-text {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--warm);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.bottom-nav-links {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.bottom-nav-links::-webkit-scrollbar {
  display: none;
}

.bnav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.3rem 0.55rem;
  min-width: 52px;
  min-height: 56px;
  color: var(--cream-dark);
  transition: color 0.2s, background 0.2s;
  gap: 2px;
}

.bnav-item:hover {
  color: var(--warm);
  background: rgba(212,165,116,0.12);
}

.bnav-icon {
  font-size: 0.9rem;
  line-height: 1;
  display: block;
}

.bnav-label {
  font-size: 0.62rem;
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.02em;
  display: block;
}

.bottom-nav-contact {
  flex-shrink: 0;
  padding: 0 0.5rem;
}

.contact-entry {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.7rem;
  min-height: 40px;
  cursor: default;
  border: 1px solid var(--warm-dark);
}

/* ============================================================
   淡入动效
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-copy {
  animation: fadeUp 0.7s ease both;
  animation-delay: 0.1s;
}

.hero-media {
  animation: fadeUp 0.7s ease both;
  animation-delay: 0.05s;
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy, .hero-media {
    animation: none;
  }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-inner {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1rem;
  }

  .hero-media {
    width: min(200px, 55vw);
  }

  .page-wrap {
    flex-direction: column;
    padding: 1.5rem 1rem calc(var(--bnav-h) + 1.5rem);
  }

  .page-aside {
    flex: none;
    width: 100%;
    position: static;
    max-height: none;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 1rem;
  }

  .footer-bar-inner {
    flex-direction: column;
    text-align: center;
    gap: 0.4rem;
  }

  .header-nav p a {
    font-size: 0.75rem;
    padding: 0.4rem 0.5rem;
  }

  .bnav-label {
    font-size: 0.58rem;
  }

  .bnav-item {
    min-width: 44px;
    padding: 0.3rem 0.4rem;
  }
}

@media (max-width: 480px) {
  .header-inner {
    gap: 0.75rem;
  }

  .hero-h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .footer-cta-title {
    font-size: 1.5rem;
  }

  .bottom-nav-brand {
    display: none;
  }

  .bottom-nav-contact {
    display: none;
  }
}

button[aria-expanded]{min-width:44px;min-height:44px}