/* =========================================================
   水果派站 · 共享样式表 /assets/site.css
   01 重置 · 02 变量 · 03 中文排版 · 04 通用组件
   05 页头 · 06 页脚 · 07 响应式 · 08 动效降级
   ========================================================= */

/* ---------- 01 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 16px;
}

body, h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; }
:focus-visible { outline: 3px solid var(--berry); outline-offset: 3px; }

/* ---------- 02 变量 ---------- */
:root {
  --mango: #F5A623;
  --mango-soft: #FDE3B8;
  --berry: #C43E6B;
  --berry-deep: #7E2340;
  --lime: #A8D53A;
  --cream: #FFF8EF;
  --char: #1F1B16;
  --crust: #8A5A2B;
  --line: #E6DCCB;
  --ink-soft: #4A4238;

  --bd: 3px;
  --shadow: 8px 8px 0 var(--char);
  --shadow-lg: 12px 12px 0 var(--char);
  --shadow-mango: 8px 8px 0 var(--mango);

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1200px;
  --gutter: 16px;
  --measure: 68ch;
}

/* ---------- 03 中文排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--char);
  background-color: var(--cream);
  background-image:
    linear-gradient(to right, rgba(138, 90, 43, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(138, 90, 43, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--char);
  font-style: normal;
}

h1 { font-size: clamp(34px, 5.4vw, 56px); font-weight: 900; line-height: 1.06; }
h2 { font-size: clamp(26px, 3.6vw, 34px); }
h3 { font-size: 22px; }
h4 { font-size: 17px; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.wrap {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
}

.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1em; }
.prose h2 { margin-top: 1.8em; margin-bottom: 0.5em; font-size: clamp(24px, 3vw, 30px); }
.prose h3 { margin-top: 1.5em; margin-bottom: 0.4em; }
.prose ul, .prose ol { margin-top: 0.8em; padding-left: 1.4em; }
.prose ul li { list-style: square; }
.prose ol li { list-style: decimal; }
.prose li + li { margin-top: 0.35em; }
.prose strong { font-weight: 700; }

.page-head { padding: 40px 0 12px; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- 04 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: var(--bd) solid var(--char);
  background: var(--cream);
  color: var(--char);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  box-shadow: var(--shadow);
  transition: box-shadow 120ms ease, transform 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--berry-deep);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 var(--char);
}

.btn--primary { background: var(--mango); }
.btn--berry { background: var(--berry); color: var(--cream); }
.btn--berry:hover { border-color: var(--mango); }
.btn--ghost { background: transparent; }

.link-inline {
  box-shadow: inset 0 -2px 0 var(--berry);
  transition: box-shadow 120ms ease, color 120ms ease;
}
.link-inline:hover { box-shadow: inset 0 -3px 0 var(--lime); color: var(--berry-deep); }

.sticker {
  display: inline-block;
  padding: 4px 10px;
  background: var(--lime);
  border: 2px solid var(--char);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--char);
  transform: rotate(-3deg);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 2px solid var(--char);
  background: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.6;
  transition: transform 150ms ease, background-color 150ms ease, color 150ms ease;
}
.tag:hover { transform: translateY(-2px); }
.tag--mango { background: var(--mango-soft); }
.tag--lime { background: var(--lime); }
.tag--berry { background: var(--berry); color: var(--cream); border-color: var(--berry-deep); }

.section { position: relative; padding: 64px 0; }
.section--dark { background: var(--char); color: var(--cream); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--cream); }
.section--dark .eyebrow, .section--dark .section__label { color: rgba(255, 248, 239, 0.62); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px 20px;
  margin-bottom: 28px;
}

.section__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 600;
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: var(--berry);
}
.section--dark .section__num { color: var(--mango); }

.section__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.section__title { font-size: clamp(26px, 3.4vw, 34px); }
.section__body { margin-top: 4px; }

.panel {
  position: relative;
  padding: 24px;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: var(--shadow);
  transition: box-shadow 120ms ease, transform 120ms ease, border-color 120ms ease;
}
.panel--hover:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--berry-deep);
}
.panel--dark { background: var(--char); color: var(--cream); box-shadow: var(--shadow-mango); }
.panel--dark h2, .panel--dark h3 { color: var(--cream); }
.panel--mango { background: var(--mango-soft); }

.grid { display: grid; gap: 20px; }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid--12 > * { grid-column: 1 / -1; min-width: 0; }

.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--mango-soft);
  border: var(--bd) solid var(--char);
}
.media > img, .media > picture, .media > svg, .media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--square { aspect-ratio: 1 / 1; }
.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 4px 10px;
  background: var(--char);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.breadcrumb {
  padding: 16px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__link { box-shadow: inset 0 -2px 0 var(--berry); transition: box-shadow 120ms ease, color 120ms ease; }
.breadcrumb__link:hover { box-shadow: inset 0 -3px 0 var(--lime); color: var(--berry-deep); }
.breadcrumb__sep { color: var(--crust); opacity: 0.7; }
.breadcrumb__current { color: var(--char); }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  z-index: 300;
  pointer-events: none;
  background: linear-gradient(90deg, var(--mango), var(--berry));
}

/* ---------- 05 页头 ---------- */
.skip-link {
  position: absolute;
  top: -72px;
  left: var(--gutter);
  z-index: 400;
  padding: 10px 18px;
  background: var(--char);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 2px solid var(--lime);
  transition: top 120ms ease;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: relative;
  z-index: 60;
  background: var(--cream);
  border-bottom: var(--bd) solid var(--char);
}

.header-strip { background: var(--char); color: var(--cream); }
.header-strip__inner {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 24px;
  min-height: 38px;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.6;
}
.header-strip__note { color: rgba(255, 248, 239, 0.68); }
.header-strip__links { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.strip-link {
  color: var(--cream);
  box-shadow: inset 0 -1px 0 rgba(255, 248, 239, 0.4);
  transition: color 120ms ease, box-shadow 120ms ease;
}
.strip-link:hover { color: var(--lime); box-shadow: inset 0 -2px 0 var(--lime); }
.header-strip :focus-visible { outline-color: var(--lime); }

.header-masthead { background: var(--cream); border-bottom: 1px solid var(--line); }
.header-masthead__inner {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
  display: flex;
  justify-content: center;
  padding: 20px 0 18px;
}
.masthead {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 2px 6px;
  transition: transform 120ms ease;
}
.masthead:hover { transform: translateY(-2px); }
.masthead__mark { width: 46px; height: 46px; flex: 0 0 auto; }
.masthead__text { display: flex; flex-direction: column; gap: 3px; }
.masthead__name {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--char);
  transition: color 120ms ease;
}
.masthead:hover .masthead__name { color: var(--berry); }
.masthead__name::after {
  content: "";
  display: block;
  height: 5px;
  margin-top: 8px;
  background: repeating-linear-gradient(90deg, var(--mango) 0 8px, transparent 8px 14px);
}
.masthead__edition {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--berry);
}

.header-nav { background: var(--cream); }
.header-nav__inner {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 58px;
}

.site-nav { display: block; flex: 1 1 auto; }
.site-nav__list { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px; }
.site-nav__item { display: block; }
.site-nav__link {
  display: block;
  padding: 8px 14px;
  border: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--char);
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.site-nav__link:hover { background: var(--mango-soft); border-color: var(--char); }
.site-nav__link[aria-current="page"] {
  background: var(--char);
  border-color: var(--char);
  color: var(--lime);
}
.site-nav__link[aria-current="page"]:hover { background: var(--berry-deep); border-color: var(--berry-deep); color: var(--cream); }

.batch-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 6px 12px;
  background: var(--mango-soft);
  border: 2px solid var(--char);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.5;
  white-space: nowrap;
}
.batch-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 2px var(--char);
}
.batch-pill__label { color: var(--ink-soft); }
.batch-pill__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--char);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: 4px 4px 0 var(--char);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--char);
  transition: background-color 120ms ease, box-shadow 120ms ease;
}
.nav-toggle:hover { background: var(--mango-soft); }
.nav-toggle[aria-expanded="true"] { background: var(--berry); color: var(--cream); }
.nav-toggle__bars { display: grid; gap: 4px; width: 18px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 120ms ease, opacity 120ms ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-toggle__label { line-height: 1; }

/* ---------- 06 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--char);
  color: var(--cream);
  border-top: var(--bd) solid var(--char);
}
.site-footer::before {
  content: "";
  display: block;
  height: 8px;
  background: repeating-linear-gradient(
    90deg,
    var(--mango) 0 60px,
    var(--berry) 60px 120px,
    var(--lime) 120px 180px
  );
}
.site-footer :focus-visible { outline-color: var(--lime); }

.footer-band { border-bottom: 1px dashed rgba(255, 248, 239, 0.24); }
.footer-band__inner {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  padding: 26px 0 22px;
}
.batch-copy {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 16px;
  background: transparent;
  border: 2px solid var(--cream);
  color: var(--cream);
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}
.batch-copy:hover { background: var(--mango); color: var(--char); border-color: var(--char); }
.batch-copy__label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  opacity: 0.78;
}
.batch-copy__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
}
.batch-copy__state {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--lime);
}
.batch-copy:hover .batch-copy__state { color: var(--berry-deep); }
.footer-band__note {
  max-width: 46ch;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: rgba(255, 248, 239, 0.6);
}

.footer-inner {
  width: min(calc(100% - var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
  padding: 32px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, minmax(0, 1fr));
  gap: 28px 24px;
}
.footer-brand { min-width: 0; }
.footer-brand__name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--cream);
}
.footer-brand__name::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 10px;
  background: var(--mango);
}
.footer-brand__desc {
  max-width: 30ch;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 248, 239, 0.72);
}
.footer-brand__meta { margin-top: 16px; display: grid; gap: 6px; }
.footer-brand__meta .footer-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.01em;
  word-break: break-word;
}

.footer-col { min-width: 0; }
.footer-col__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mango);
}
.footer-col__list { margin-top: 14px; display: grid; gap: 8px; }
.footer-link {
  display: inline-block;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 248, 239, 0.82);
  transition: color 120ms ease, box-shadow 120ms ease;
}
.footer-link:hover {
  color: var(--lime);
  box-shadow: inset 0 -1px 0 var(--lime);
}

.footer-base {
  margin-top: 34px;
  padding: 16px 0 26px;
  border-top: 1px solid rgba(255, 248, 239, 0.16);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 24px;
}
.footer-base__line {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255, 248, 239, 0.56);
}

/* ---------- 07 响应式 ---------- */
@media (min-width: 641px) {
  .col-3 { grid-column: span 6; }
  .col-4 { grid-column: span 6; }
  .col-5 { grid-column: span 7; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-12 { grid-column: span 12; }
}

@media (min-width: 961px) {
  .col-3 { grid-column: span 3; }
  .col-4 { grid-column: span 4; }
  .col-5 { grid-column: span 5; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-12 { grid-column: span 12; }
}

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .header-nav__inner { flex-wrap: wrap; gap: 10px; padding: 10px 0 12px; }
  .nav-toggle { order: 1; }
  .batch-pill { order: 2; margin-left: auto; }
  .site-nav { order: 3; flex: 1 1 100%; display: none; }
  .site-nav[data-open] { display: block; }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 8px; padding-top: 6px; }
  .site-nav__link {
    padding: 11px 14px;
    border-color: var(--char);
    background: var(--cream);
    box-shadow: 4px 4px 0 var(--line);
  }
  .site-nav__link[aria-current="page"] { box-shadow: 4px 4px 0 var(--mango); }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: 48px 0; }
  .panel { padding: 20px; }
  .header-strip__inner { justify-content: flex-start; gap: 4px 16px; }
  .header-masthead__inner { padding: 16px 0 14px; }
  .masthead { gap: 10px; }
  .masthead__mark { width: 38px; height: 38px; }
}

@media (max-width: 680px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 16px; }
  .footer-band__inner { gap: 12px; padding: 20px 0 18px; }
  .batch-copy { gap: 8px; padding: 7px 12px; }
  .batch-copy__num { font-size: 22px; }
  .footer-base { justify-content: flex-start; }
}

@media (max-width: 460px) {
  .batch-pill__label { display: none; }
  .btn { width: 100%; }
}

/* ---------- 08 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover,
  .panel--hover:hover,
  .masthead:hover,
  .tag:hover {
    transform: none;
  }
}