@charset "utf-8";
/* ==========================================================================
   桂魄 · GUI PO JADE — 品牌长页
   朱红 / 米白 / 墨，单一品牌色打底，满幅照片与宋体大字。
   零外链：不引第三方字体、脚本、图片。
   ========================================================================== */

:root {
  /* 朱红 */
  --zhu:        #b63528;
  --zhu-deep:   #8a2418;
  --zhu-ink:    #61160f;
  --zhu-line:   rgba(251, 239, 225, .26);

  /* 纸 */
  --paper:      #f5ede0;
  --paper-2:    #ece0cd;
  --paper-line: rgba(23, 18, 15, .14);

  --ink:        #17120f;
  --ink-soft:   #4b3e36;
  --ink-dim:    #7d6d62;
  --ivory:      #fbefe1;
  --ivory-dim:  rgba(251, 239, 225, .82);
  --ivory-faint:rgba(251, 239, 225, .6);

  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --cjk: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --num: "Georgia", "Times New Roman", "Songti SC", serif;

  --gut: clamp(20px, 6vw, 88px);
  --topbar: 66px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--zhu);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--ivory); color: var(--zhu-deep); }

/* 纸质颗粒（内联，零请求） */
.grain {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .16;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* ---------- 版心 ---------- */
.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--gut);
}
.wrap--wide { max-width: 1480px; }

/* ---------- 顶部 ---------- */
.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  height: var(--topbar);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 clamp(16px, 3.4vw, 46px);
  color: var(--ivory);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .5s var(--ease), border-color .5s var(--ease), transform .45s var(--ease);
}
.topbar.is-solid {
  background: var(--zhu);
  border-bottom-color: var(--zhu-line);
}
.topbar.is-hidden { transform: translateY(-100%); }

.burger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
}
.burger i {
  display: block;
  width: 22px;
  height: 1px;
  background: currentColor;
  box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
  transition: transform .3s var(--ease);
}
.burger:hover i { transform: translateX(3px); }

.brand {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: .34em;
  text-indent: .34em;
  white-space: nowrap;
}
.brand small {
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: .34em;
  text-indent: .34em;
  color: var(--ivory-faint);
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.4vw, 28px);
  font-size: 10px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--ivory-dim);
}
.topbar-right a:hover { color: var(--ivory); }

/* ---------- 菜单浮层 ---------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: var(--zhu-deep);
  color: var(--ivory);
  opacity: 0;
  visibility: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  transition: opacity .45s var(--ease), visibility .45s;
}
.menu.is-open { opacity: 1; visibility: visible; }
.menu-inner {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(64px, 10vh, 110px) 24px clamp(32px, 6vh, 64px);
}
.menu-inner > ul { margin: auto 0; padding: 0; }
.menu ul { list-style: none; margin: 0; padding: 0; text-align: center; }
.menu li + li { margin-top: clamp(4px, 1.4vh, 18px); }
.menu a {
  display: inline-block;
  font-family: var(--serif);
  font-size: clamp(22px, min(4.2vw, 4.4vh), 42px);
  line-height: 1.3;
  letter-spacing: .14em;
  text-indent: .14em;
  color: var(--ivory);
  opacity: .84;
  transition: opacity .3s, letter-spacing .5s var(--ease), text-indent .5s var(--ease);
}
.menu a:hover,
.menu a:focus-visible { opacity: 1; letter-spacing: .3em; text-indent: .3em; }
.menu small {
  display: block;
  margin-top: 4px;
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: .34em;
  text-indent: .34em;
  color: var(--ivory-faint);
}
.menu-close {
  position: fixed;
  top: 22px;
  right: clamp(16px, 3.4vw, 46px);
  z-index: 2;
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
}
.menu-foot {
  margin: 0;
  text-align: center;
  font-size: 10px;
  letter-spacing: .26em;
  color: var(--ivory-faint);
}
.menu-foot a { font-size: 10px; letter-spacing: .26em; text-indent: 0; color: var(--ivory-dim); }
.menu-foot a:hover { letter-spacing: .26em; text-indent: 0; color: var(--ivory); }
.menu-foot span { display: block; margin-top: 12px; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: block;
  overflow: hidden;
  background: var(--zhu-ink);
  isolation: isolate;
}
.hero-media {
  position: absolute;
  inset: -6% 0;
  z-index: -2;
  will-change: transform;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(46, 9, 6, .62) 0%, rgba(46, 9, 6, .26) 42%, rgba(46, 9, 6, 0) 74%),
    linear-gradient(180deg, rgba(23, 8, 5, .52) 0%, rgba(23, 8, 5, .06) 26%, rgba(60, 12, 8, .34) 62%, rgba(109, 26, 19, .9) 100%);
}
.hero-inner {
  position: absolute;
  left: 0;
  right: 0;
  bottom: clamp(120px, 18vh, 190px);
  padding: 0 var(--gut);
  color: var(--ivory);
}
.eyebrow {
  display: block;
  margin: 0 0 clamp(16px, 2.8vh, 26px);
  font-size: 10px;
  letter-spacing: .42em;
  color: var(--ivory-dim);
}
.wordmark {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(58px, 9.6vw, 138px);
  line-height: .98;
  letter-spacing: .14em;
  text-indent: .04em;
  text-shadow: 0 2px 44px rgba(28, 5, 3, .5), 0 1px 3px rgba(28, 5, 3, .28);
}
.latin {
  margin: clamp(14px, 2.4vh, 22px) 0 0;
  font-size: 10px;
  letter-spacing: .56em;
  color: var(--ivory-dim);
}
.hero .rule {
  display: block;
  width: 54px;
  height: 1px;
  margin: clamp(20px, 3.4vh, 32px) 0;
  background: var(--ivory-faint);
}
.tagline {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(14px, 1.5vw, 19px);
  letter-spacing: .3em;
  color: var(--ivory);
}
.hero-foot {
  position: absolute;
  left: 0;
  right: 0;
  bottom: clamp(22px, 4vh, 40px);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 clamp(20px, 3.4vw, 46px);
  color: var(--ivory-faint);
  font-size: 9px;
  letter-spacing: .3em;
}
.cue {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.cue span { writing-mode: vertical-rl; letter-spacing: .4em; }
.cue i {
  display: block;
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--ivory-faint), transparent);
  animation: cue 2.6s var(--ease) infinite;
  transform-origin: top;
}
@keyframes cue {
  0%, 100% { transform: scaleY(.2); opacity: .2; }
  40%      { transform: scaleY(1); opacity: 1; }
}
.coords { margin: 0; line-height: 1.9; text-align: right; }

/* ---------- 章节 ---------- */
.section {
  position: relative;
  padding: clamp(76px, 13vh, 168px) 0;
  background: var(--zhu);
  color: var(--ivory);
}
.section--paper {
  background: var(--paper);
  color: var(--ink);
}
.section--deep { background: var(--zhu-deep); }

.sec-no {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 clamp(26px, 5vh, 54px);
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--ivory-faint);
}
.section--paper .sec-no { color: var(--ink-dim); }
.sec-no::after {
  content: "";
  flex: 1;
  height: 1px;
  background: currentColor;
  opacity: .35;
}

.h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 4.4vw, 56px);
  line-height: 1.42;
  letter-spacing: .09em;
}
.h2--tight { font-size: clamp(26px, 3.7vw, 46px); }
.h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.6;
  letter-spacing: .1em;
}
.lede {
  margin: clamp(20px, 3.4vh, 34px) 0 0;
  max-width: 34em;
  font-size: clamp(14px, 1.12vw, 16.5px);
  line-height: 2.1;
  color: var(--ivory);
}
.section--paper .lede { color: var(--ink-soft); }
.lede em { font-style: normal; color: var(--ivory); }
.section--paper .lede em { color: var(--ink); box-shadow: inset 0 -.5em 0 rgba(193, 59, 43, .16); }
.center { text-align: center; }
.center .lede { margin-left: auto; margin-right: auto; }

/* ---------- 01 名 ---------- */
.name-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(30px, 6vw, 92px);
  align-items: center;
}
.name-art {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--zhu-ink);
}
.name-art img { width: 100%; height: 100%; object-fit: cover; }
.name-art figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px;
  font-size: 9.5px;
  letter-spacing: .26em;
  color: var(--ivory-dim);
  background: linear-gradient(0deg, rgba(20, 6, 4, .78), transparent);
}

/* ---------- 02 四十年 ---------- */
.years {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: clamp(30px, 6vw, 84px);
  align-items: start;
}
.timeline { margin: 0; padding: 0; list-style: none; }
.timeline li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 17px 0;
  border-top: 1px solid var(--paper-line);
}
.timeline li:last-child { border-bottom: 1px solid var(--paper-line); }
.timeline b {
  font-family: var(--num);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: .04em;
  color: var(--zhu);
  font-variant-numeric: lining-nums;
}
.timeline p { margin: 0; font-size: 14.5px; line-height: 1.95; color: var(--ink-soft); }
.timeline p strong { font-weight: 600; color: var(--ink); }

.years-art { position: relative; }
.years-art figure { margin: 0; }
.years-art img { width: 100%; aspect-ratio: 2 / 3; object-fit: cover; }
.years-art figcaption {
  margin-top: 14px;
  font-size: 9.5px;
  letter-spacing: .24em;
  color: var(--ink-dim);
}

/* ---------- 03 暗处 ---------- */
.dark {
  position: relative;
  overflow: hidden;
}
.dark .big-year {
  position: absolute;
  top: -3vw;
  left: 50%;
  transform: translateX(-58%);
  font-family: var(--num);
  font-size: clamp(120px, 25vw, 350px);
  line-height: .82;
  letter-spacing: -.02em;
  color: var(--ivory);
  opacity: .1;
  pointer-events: none;
  user-select: none;
}
.dark-inner { position: relative; z-index: 1; display: grid; justify-items: center; }
.dark-art {
  position: relative;
  width: min(100%, 420px);
  margin: clamp(6px, 4vh, 40px) 0 clamp(38px, 7vh, 74px);
  box-shadow: 0 30px 70px -40px rgba(0, 0, 0, .55);
}
.dark-art img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.dark .h2 { text-align: center; }
.dark .lede { text-align: left; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 3vw, 40px);
  margin-top: clamp(44px, 8vh, 84px);
  text-align: left;
}
.step { border-top: 1px solid var(--zhu-line); padding-top: 20px; }
.step-no {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--ivory-faint);
}
.step h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 19px;
  letter-spacing: .12em;
}
.step p { margin: 0; font-size: 13.5px; line-height: 1.95; color: var(--ivory-dim); }

/* ---------- 04 引语 ---------- */
.quote {
  position: relative;
  padding: clamp(80px, 15vh, 170px) 0 clamp(70px, 12vh, 140px);
  background: var(--zhu-deep);
  text-align: center;
  overflow: hidden;
}
.quote-mark {
  position: absolute;
  top: clamp(-10px, 0vh, 10px);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--num);
  font-size: clamp(220px, 40vw, 560px);
  line-height: .7;
  color: var(--ivory);
  opacity: .07;
  pointer-events: none;
  user-select: none;
}
.quote blockquote {
  position: relative;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(26px, 4.2vw, 52px);
  line-height: 1.66;
  letter-spacing: .12em;
  text-indent: .12em;
}
.quote cite {
  position: relative;
  display: block;
  margin-top: clamp(22px, 4vh, 38px);
  font-style: normal;
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--ivory-faint);
}

/* ---------- 05 天然 ---------- */
.claim { display: grid; justify-items: center; text-align: center; }
.claim .h2 { font-size: clamp(30px, 5vw, 62px); }
.seal {
  display: inline-grid;
  place-items: center;
  width: clamp(66px, 8vw, 92px);
  height: clamp(66px, 8vw, 92px);
  margin-top: clamp(28px, 5vh, 48px);
  font-family: var(--serif);
  font-size: clamp(16px, 1.8vw, 22px);
  letter-spacing: .18em;
  text-indent: .18em;
  color: var(--ivory);
  background: var(--zhu);  border-radius: 3px;
  transform: rotate(-3deg);
  box-shadow: 0 12px 30px -18px rgba(109, 26, 19, .9);
}

.natural-band {
  margin: clamp(48px, 9vh, 96px) 0 0;
  width: 100%;
  overflow: hidden;
}
.natural-band img {
  width: 100%;
  height: clamp(220px, 52vh, 640px);
  object-fit: cover;
  object-position: 50% 55%;
}

/* ---------- 06 编号 ---------- */
.code-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: clamp(30px, 6vw, 80px);
  align-items: center;
}
.code-digits {
  display: flex;
  align-items: flex-start;
  gap: clamp(4px, 1.4vw, 18px);
  margin: 0;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}
.code-digits li {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding-right: clamp(4px, 1.4vw, 18px);
  border-right: 1px solid var(--zhu-line);
}
.code-digits li:last-child { border-right: 0; padding-right: 0; }
.code-digits b {
  font-family: var(--num);
  font-weight: 400;
  font-size: clamp(34px, 6vw, 72px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--ivory);
}
.code-digits i {
  font-style: normal;
  font-size: 9px;
  letter-spacing: .24em;
  color: var(--ivory-faint);
}
.code-note {
  margin: clamp(24px, 4vh, 38px) 0 0;
  font-family: var(--num);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--ivory-dim);
}
.code-art { background: var(--paper); padding: clamp(14px, 2vw, 26px); }
.code-art img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; }
.code-art figcaption {
  margin-top: 12px;
  font-size: 9.5px;
  letter-spacing: .22em;
  color: var(--ink-dim);
  text-align: center;
}

/* ---------- 07 图录 ---------- */
.plates-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.plates-nav { display: flex; align-items: center; gap: 12px; }
.plates-nav button {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--paper-line);
  border-radius: 50%;
  color: var(--ink);
  transition: background .3s, color .3s, border-color .3s, opacity .3s;
}
.plates-nav button:hover:not(:disabled) { background: var(--zhu); color: var(--ivory); border-color: var(--zhu); }
.plates-nav button:disabled { opacity: .28; cursor: default; }
.plates-count {
  font-family: var(--num);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-dim);
  min-width: 74px;
  text-align: right;
}
.plates {
  display: flex;
  gap: clamp(12px, 1.8vw, 24px);
  margin-top: clamp(26px, 4vh, 44px);
  padding-bottom: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.plates::-webkit-scrollbar { display: none; }
.plate {
  flex: 0 0 clamp(230px, 26vw, 306px);
  margin: 0;
  scroll-snap-align: start;
}
.plate-img {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--paper-2);
}
.plate-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}
.plate:hover .plate-img img { transform: scale(1.035); }
.plate figcaption {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--paper-line);
}
.plate-name {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--serif);
  font-size: 14.5px;
  line-height: 1.55;
  letter-spacing: .06em;
  color: var(--ink);
}
.plate-no {
  flex: 0 0 auto;
  font-family: var(--num);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-dim);
}
.plates-note {
  margin: clamp(22px, 4vh, 34px) 0 0;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--ink-soft);
}

/* ---------- 08 七个名字 ---------- */
.names { margin: clamp(20px, 4vh, 40px) 0 0; padding: 0; list-style: none; }
.names li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(14px, 2.4vh, 22px) 0;
  border-top: 1px solid var(--zhu-line);
  transition: padding-left .4s var(--ease);
}
.names li:last-child { border-bottom: 1px solid var(--zhu-line); }
.names li:hover { padding-left: 10px; }
.names .nm {
  font-family: var(--serif);
  font-size: clamp(21px, 2.6vw, 30px);
  letter-spacing: .16em;
  color: var(--ivory);
}
.names .mats {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--ivory);
  text-align: right;
}

/* ---------- 09 店 ---------- */
.shop {
  position: relative;
  min-height: min(88svh, 860px);
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
  color: var(--ivory);
  background: var(--zhu-ink);
}
.shop-media { position: absolute; inset: 0; z-index: -2; }
.shop-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 46%; }
.shop::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(95deg, rgba(68, 13, 9, .86) 0%, rgba(68, 13, 9, .52) 42%, rgba(68, 13, 9, .16) 72%, rgba(68, 13, 9, .34) 100%),
    linear-gradient(180deg, rgba(60, 12, 8, .46) 0%, rgba(60, 12, 8, .12) 26%, rgba(74, 15, 10, .74) 60%, rgba(74, 15, 10, .96) 100%);
}
.shop-inner { padding: clamp(60px, 12vh, 130px) 0 clamp(50px, 9vh, 96px); }
.shop .h2 {
  max-width: 24em;
  font-size: clamp(23px, 3.3vw, 42px);
  line-height: 1.6;
  text-shadow: 0 1px 26px rgba(30, 5, 3, .5);
}
.shop-num {
  font-family: var(--num);
  font-size: clamp(46px, 9vw, 108px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--ivory);
  opacity: .96;
}
.shop-num span { color: var(--ivory-faint); margin: 0 .12em; }
.shop-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 46px);
  margin: clamp(36px, 6vh, 64px) 0 0;
  padding-top: clamp(24px, 4vh, 36px);
  border-top: 1px solid var(--zhu-line);
}
.shop-meta dt {
  margin: 0 0 10px;
  font-size: 9.5px;
  letter-spacing: .3em;
  color: var(--ivory-faint);
}
.shop-meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 2;
  color: var(--ivory-dim);
}
.shop-meta dd a { border-bottom: 1px solid var(--zhu-line); padding-bottom: 2px; transition: color .3s, border-color .3s; }
.shop-meta dd a:hover { color: var(--ivory); border-color: var(--ivory); }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(52px, 9vh, 96px) 0 34px;
}
.acc { border-top: 1px solid var(--paper-line); }
.acc details { border-bottom: 1px solid var(--paper-line); }
.acc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: .16em;
  cursor: pointer;
  list-style: none;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary i {
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--ink-dim);
  border-bottom: 1px solid var(--ink-dim);
  transform: rotate(45deg) translateY(-2px);
  transition: transform .35s var(--ease);
}
.acc details[open] summary i { transform: rotate(225deg) translateY(-2px); }
.acc-body {
  padding: 0 0 24px;
  display: grid;
  gap: 6px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-soft);
}
.acc-body a { color: var(--zhu); border-bottom: 1px solid rgba(193, 59, 43, .3); }
.acc-body a:hover { border-color: var(--zhu); }

.foot-bottom {
  display: grid;
  justify-items: center;
  gap: 18px;
  margin-top: clamp(40px, 7vh, 64px);
  text-align: center;
}
.foot-seal {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  font-family: var(--serif);
  font-size: 24px;
  color: var(--ivory);
  background: var(--zhu);
  border-radius: 2px;
}
.foot-meta {
  font-size: 10px;
  letter-spacing: .26em;
  color: var(--ink-dim);
  line-height: 2.2;
}
.foot-meta a:hover { color: var(--zhu); }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 30px);
  bottom: clamp(14px, 2.4vw, 30px);
  z-index: 70;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ivory);
  color: var(--zhu-deep);
  box-shadow: 0 10px 30px -14px rgba(0, 0, 0, .5);
  opacity: 0;
  transform: translateY(10px) scale(.9);
  pointer-events: none;
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.to-top.is-on { opacity: 1; transform: none; pointer-events: auto; }
.to-top svg { width: 15px; height: 15px; }

/* ---------- 入场 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .95s var(--ease), transform .95s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .09s; }
.reveal-d2 { transition-delay: .18s; }
.reveal-d3 { transition-delay: .27s; }

/* ---------- 英文页：拉丁衬线 + 更紧的字距 ---------- */
body.lang-en {
  --serif: "Georgia", "Iowan Old Style", "Times New Roman", serif;
  --sans: "Helvetica Neue", "Segoe UI", Arial, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.75;
}
.lang-en .brand span,
.lang-en .wordmark,
.lang-en .seal,
.lang-en .foot-seal { font-family: var(--cjk); }

.lang-en .brand { letter-spacing: .2em; text-indent: .2em; }
.lang-en .burger { letter-spacing: .2em; }
.lang-en .topbar-right { letter-spacing: .2em; }
.lang-en .eyebrow { letter-spacing: .3em; text-transform: uppercase; }
.lang-en .latin { letter-spacing: .44em; }
.lang-en .wordmark { font-size: clamp(54px, 8.4vw, 118px); letter-spacing: .1em; text-indent: .04em; }
.lang-en .tagline { font-family: var(--serif); font-size: clamp(15px, 1.5vw, 21px); letter-spacing: .04em; }
.lang-en .cue span { letter-spacing: .3em; }

.lang-en .sec-no { letter-spacing: .3em; }
.lang-en .h2 { font-size: clamp(28px, 3.8vw, 48px); line-height: 1.26; letter-spacing: .005em; }
.lang-en .h2--tight { font-size: clamp(25px, 3.2vw, 40px); }
.lang-en .lede { font-size: clamp(15px, 1.05vw, 17px); line-height: 1.85; max-width: 31em; }
.lang-en .timeline p { font-size: 14.5px; line-height: 1.8; }
.lang-en .step h3 { font-size: 18px; letter-spacing: .01em; }
.lang-en .step p { font-size: 13.5px; line-height: 1.75; }
.lang-en .quote blockquote { font-size: clamp(23px, 3.3vw, 42px); line-height: 1.36; letter-spacing: .005em; }
.lang-en .code-digits i { letter-spacing: .16em; }
.lang-en .code-note { letter-spacing: .06em; font-size: 12.5px; }
.lang-en .plate-name { font-size: 13px; line-height: 1.45; letter-spacing: 0; }
.lang-en .names .nm { font-size: clamp(18px, 2.1vw, 26px); letter-spacing: .02em; }
.lang-en .names .mats { font-size: 11.5px; letter-spacing: .04em; }
.lang-en .shop .h2 { font-size: clamp(20px, 2.5vw, 33px); line-height: 1.52; letter-spacing: .005em; }
.lang-en .shop-meta dd { font-size: 13.5px; }
.lang-en .acc summary { font-size: 15px; letter-spacing: .02em; }
.lang-en .acc-body { font-size: 13.5px; }
.lang-en .foot-meta { letter-spacing: .18em; }

.lang-en .menu a { font-size: clamp(18px, min(3vw, 3.2vh), 30px); letter-spacing: .02em; text-indent: 0; }
.lang-en .menu-inner { padding: clamp(58px, 9vh, 96px) 24px clamp(28px, 5vh, 52px); }
.lang-en .menu li + li { margin-top: clamp(2px, 1.1vh, 12px); }
.lang-en .menu a:hover,
.lang-en .menu a:focus-visible { letter-spacing: .09em; text-indent: 0; }
.lang-en .menu small { font-size: 9px; letter-spacing: .18em; text-indent: 0; }
.lang-en .menu-foot,
.lang-en .menu-foot a { letter-spacing: .18em; }

/* ---------- 只在窄屏生效的换行 ---------- */
.only-m { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .name-grid { grid-template-columns: 1fr; }
  .name-art { aspect-ratio: 4 / 3; order: -1; }
  .years { grid-template-columns: 1fr; }
  .years-art { display: none; }
  .code-grid { grid-template-columns: 1fr; }
  .code-art { max-width: 380px; }
}

@media (max-width: 760px) {
  :root { --topbar: 58px; }
  body { font-size: 15px; }
  .brand small { display: none; }
  .topbar-right { display: none; }
  .only-m { display: inline; }
  .shop .h2 { font-size: 20px; line-height: 1.78; }
  .lang-en .eyebrow { font-size: 9.5px; letter-spacing: .14em; }
  .lang-en .hero .wordmark { font-size: clamp(48px, 15vw, 72px); }
  .lang-en .tagline { font-size: 14px; letter-spacing: .02em; }
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .step { display: grid; grid-template-columns: 46px 1fr; column-gap: 14px; align-items: baseline; }
  .step-no { margin: 0; }
  .step h3 { grid-column: 2; margin-bottom: 6px; }
  .step p { grid-column: 2; }
  .shop-meta { grid-template-columns: 1fr; gap: 18px; }
  .names li { flex-direction: column; align-items: flex-start; gap: 4px; }
  .names .mats { text-align: left; }
  .hero-foot .coords { display: none; }
  .plates { margin-right: calc(var(--gut) * -1); padding-right: var(--gut); }
  .plate { flex-basis: 74vw; }
  .plates-head { gap: 16px; }
  .to-top { width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .cue i { animation: none; }
  .plate-img img { transition: none; }
}