/* ==========================================================================
   ATOSS — 2026 个人站
   设计语言沿用原站的拼贴感（天空蓝 / 玫红 / 奶油纸 / 黄油黄 / 墨橄榄），
   但布局、动效与交互全部重写：只跑 transform / opacity，全部可被
   prefers-reduced-motion 关闭。
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --sky: #8dbbec;
  --pink: #ee9ba9;
  --rose: #cb6576;
  --wine: #7e324e;
  --ink: #41423a;
  --paper: #fff9e9;
  --butter: #e8e5ad;

  --maxw: 1180px;
  --gutter: 22px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-soft: cubic-bezier(.4, 0, .2, 1);

  --mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: Manrope, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
          "Source Han Sans SC", "Noto Sans SC", system-ui, sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  overflow-x: clip;
}

html.is-locked, html.is-locked body { overflow: hidden; }

body {
  margin: 0;
  background: var(--sky);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, p, dl, dd, figure { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--wine);
  outline-offset: 3px;
}

::selection { background: var(--wine); color: var(--paper); }

.skiplink {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  font: 500 .75rem/1 var(--mono);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform .25s var(--ease);
}
.skiplink:focus-visible { transform: none; }

/* ---------- 布局容器 ---------- */
.plate {
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(64px, 8.5vw, 118px) var(--gutter);
}

/* ---------- 排版组件 ---------- */
.kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 700 .72rem/1 var(--mono);
  letter-spacing: .06em;
  color: var(--rose);
  margin-bottom: clamp(30px, 4vw, 52px);
}
.kicker b { font-weight: 700; }
.kicker--light { color: var(--butter); }

.display {
  font-size: clamp(2.2rem, 5.2vw, 4.6rem);
  line-height: .98;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: clamp(24px, 3vw, 38px);
}
.display--right { text-align: right; }
.display--light { color: var(--paper); }
.display em {
  font-style: normal;
  color: var(--rose);
  text-shadow: 3px 3px 0 var(--ink);
}
.display--light em { color: var(--butter); text-shadow: 4px 4px 0 var(--rose); }

.tag {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 500 .72rem/1 var(--mono);
  letter-spacing: .04em;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}
.tag__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--wine);
  flex: none;
}

.copy {
  max-width: 60ch;
  font-size: 1.06rem;
  line-height: 1.85;
  font-weight: 500;
}
.js .chips li {
  opacity: 0;
  transition:
    opacity .55s var(--ease) var(--delay, 0ms),
    background .3s var(--ease-soft),
    transform .4s var(--ease);
}
.js .chips.is-in li { opacity: 1; }

.note {
  margin-top: clamp(22px, 3vw, 30px);
  font: 500 .72rem/1.6 var(--mono);
  letter-spacing: .02em;
}
.note--light { color: rgba(255, 249, 233, .74); }

/* ---------- 链接 / 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 15px 20px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 800;
  font-size: .95rem;
  text-decoration: none;
  border: 0;
  transform: skew(-8deg);
  transition: background .3s var(--ease-soft), transform .3s var(--ease);
}
.btn > * { transform: skew(8deg); }
.btn i { font-style: normal; font-size: 1.1rem; transition: transform .35s var(--ease); }
.btn:hover { background: var(--rose); transform: skew(-8deg) translateY(-2px); }
.btn:hover i { transform: translateY(4px); }

.ghostlink {
  font: 500 .8rem/1 var(--mono);
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 2px solid currentColor;
  transition: color .25s, border-color .25s;
}
.ghostlink:hover { color: var(--wine); }

/* ==========================================================================
   开场幕布
   ========================================================================== */
.curtain { display: none; }
.js .curtain {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  overscroll-behavior: contain;
  padding: clamp(24px, 5vw, 76px);
  background: var(--paper);
  color: var(--paper);
}

/* 星：从中心一个点炸开，铺满整屏。只动 transform，留在合成层上 */
.curtain__star {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: auto;
  width: clamp(180px, 23vw, 300px);
  height: clamp(180px, 23vw, 300px);
  color: var(--wine);
  transform: scale(.07) rotate(-18deg);
  will-change: transform;
  animation: curtain-star 1.45s cubic-bezier(.15, .95, .32, 1) forwards;
}
.curtain__star svg { display: block; width: 100%; height: 100%; fill: currentColor; }

/* 天空楔形：从底部涌起，压住星的下半部分 */
.curtain__sky {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--sky);
  clip-path: polygon(0 84%, 100% 58%, 100% 100%, 0 100%);
  opacity: 0;
  transform: translate3d(0, 30%, 0);
  will-change: transform, opacity;
  animation: curtain-sky 1.15s 2.2s cubic-bezier(.2, .8, .25, 1) forwards;
}

/* 大字：HI, 是奶白，中文行粉底 + 酒红投影 */
.curtain__title {
  position: relative;
  z-index: 2;
  margin: 0;
  font-size: clamp(2.1rem, 9.4vw, 8.6rem);
  font-weight: 800;
  line-height: .82;
  letter-spacing: -.02em;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  transform: translate3d(0, 35px, 0);
  animation: curtain-title .68s 1.4s cubic-bezier(.16, .82, .24, 1) forwards;
}
.curtain__title span {
  display: inline-block;
  color: var(--pink);
  text-shadow: 5px 5px 0 var(--wine);
}

.curtain__meta,
.curtain__count {
  position: absolute;
  z-index: 2;
  padding: 7px 10px;
  background: var(--ink);
  color: var(--paper);
  font: 500 clamp(.6rem, .95vw, .72rem)/1 var(--mono);
  letter-spacing: .06em;
  transform: skew(-8deg);
  opacity: 0;
  animation: curtain-fade .45s 1.25s ease forwards;
}
/* 星形的凹口会从四角漏出纸白，标签做成墨底小牌，落在哪儿都读得清 */
.curtain__meta { top: clamp(22px, 4.6vw, 64px); left: clamp(22px, 4.6vw, 68px); }
.curtain__count { bottom: clamp(22px, 4.6vw, 64px); left: clamp(22px, 4.6vw, 68px); }
.curtain__count span { font-weight: 700; }

.curtain__skip {
  position: absolute;
  right: clamp(20px, 4vw, 54px);
  bottom: clamp(20px, 4vw, 54px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 15px;
  background: var(--ink);
  color: var(--paper);
  border: 0;
  font: 700 .72rem/1 var(--mono);
  transform: skew(-8deg);
  cursor: pointer;
  opacity: 0;
  animation: curtain-fade .4s 1.8s ease forwards;
}
.curtain__skip b { font-size: .95rem; transform: skew(8deg); }
.curtain__skip:hover { background: var(--rose); }

/* 退场：整层淡出（贴着原站的收法），内容趁淡出中途开始入场 */
.curtain.is-out {
  pointer-events: none;
  animation: curtain-out .45s ease forwards;
}
.curtain.is-gone { display: none; }

@keyframes curtain-star {
  0%   { transform: scale(.07) rotate(-18deg); }
  62%  { transform: scale(7) rotate(5deg); }
  100% { transform: scale(9) rotate(10deg); }
}
@keyframes curtain-sky { to { opacity: 1; transform: translate3d(0, 0, 0); } }
@keyframes curtain-title { to { opacity: 1; transform: translate3d(0, 0, 0); } }
@keyframes curtain-fade { to { opacity: 1; } }
@keyframes curtain-out { to { opacity: 0; visibility: hidden; } }

/* ==========================================================================
   滚动进度
   ========================================================================== */
.ruler {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 110;
  pointer-events: none;
}
.ruler i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--rose), var(--wine));
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* ==========================================================================
   顶栏
   ========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 90;
  transition: background .35s var(--ease-soft), box-shadow .35s;
}
.topbar__inner {
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding: 20px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  transition: padding .4s var(--ease);
}
.topbar.is-stuck {
  background: rgba(255, 249, 233, .86);
  background: color-mix(in srgb, var(--paper) 74%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.25);
  backdrop-filter: blur(14px) saturate(1.25);
  box-shadow: 0 1px 0 rgba(65, 66, 58, .16);
}
.topbar.is-stuck .topbar__inner { padding-block: 11px; }

.brand {
  display: inline-flex;
  align-items: baseline;
  padding: 5px 11px;
  background: var(--ink);
  text-decoration: none;
  transform: skew(-8deg);
  transition: background .3s;
}
.brand:hover { background: var(--wine); }
.brand__mark {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--paper);
  transform: skew(8deg);
}
.brand__dot { color: var(--butter); font-weight: 800; font-size: 1.4rem; line-height: 1; }

.menu { display: flex; align-items: center; gap: clamp(14px, 2.2vw, 28px); }
.menu__link {
  position: relative;
  font: 500 .75rem/1 var(--mono);
  letter-spacing: .02em;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 5px;
  transition: color .25s;
}
.menu__link::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--rose);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .38s var(--ease);
}
.menu__link:hover { color: var(--wine); }
.menu__link:hover::after,
.menu__link[aria-current="true"]::after { transform: scaleX(1); }
.menu__link[aria-current="true"] { color: var(--wine); }

.menu__link--cta {
  padding: 9px 13px;
  background: var(--ink);
  color: var(--paper);
  transform: skew(-8deg);
  transition: background .3s;
}
.menu__link--cta::after { display: none; }
.menu__link--cta:hover { background: var(--rose); color: var(--paper); }
/* 当前区块高亮时，CTA 保持可读（深底浅字），改用酒红底色区分 */
.menu__link--cta[aria-current="true"] { background: var(--wine); color: var(--paper); }

/* ==========================================================================
   首屏
   ========================================================================== */
.hero {
  position: relative;
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(28px, 4vw, 54px) var(--gutter) clamp(48px, 6vw, 86px);
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(24px, 4vw, 56px);
  min-height: clamp(540px, 76svh, 740px);
}

.hero__title {
  font-size: clamp(3rem, 8.2vw, 7rem);
  line-height: .88;
  font-weight: 800;
  letter-spacing: -.015em;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}
.hero__title .line--name { color: var(--ink); }
.hero__title em {
  font-style: normal;
  color: var(--rose);
  text-shadow: 4px 4px 0 var(--wine);
}

.hero__lead {
  font-size: clamp(.98rem, 1.15vw, 1.1rem);
  line-height: 1.8;
  font-weight: 600;
  max-width: 34ch;
  margin-bottom: clamp(26px, 3vw, 36px);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 30px);
  flex-wrap: wrap;
}

.hero__stamp {
  position: absolute;
  right: 4px;
  top: 42%;
  font: 500 .66rem/1 var(--mono);
  letter-spacing: .34em;
  color: var(--wine);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  opacity: .75;
}

/* ---------- 头像构图 ---------- */
.hero__art { display: flex; justify-content: center; }

.art {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1 / 1;
}

[data-depth] {
  transform:
    translate3d(
      calc(var(--px, 0) * var(--m, 8) * 1px),
      calc(var(--py, 0) * var(--m, 8) * 1px),
      0
    )
    var(--rest, rotate(0deg));
}

.art__slab {
  --m: 5;
  --rest: rotate(-13deg) skew(-9deg);
  position: absolute;
  left: 4%;
  top: 15%;
  width: 88%;
  height: 62%;
  background: var(--pink);
  z-index: 1;
}
.art__ring {
  --m: 10;
  --rest: rotate(0deg);
  position: absolute;
  inset: 5% 8% 12% 6%;
  border-radius: 50%;
  z-index: 0;
}
.art__ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px dashed rgba(65, 66, 58, .38);
  animation: spin 90s linear infinite;
}
.art__cube {
  --m: 15;
  --rest: rotate(17deg);
  position: absolute;
  right: 2%;
  top: 6%;
  width: clamp(56px, 13%, 86px);
  aspect-ratio: 1;
  background: var(--wine);
  z-index: 2;
}
.art__pip {
  --m: 19;
  --rest: rotate(0deg);
  position: absolute;
  left: 1%;
  bottom: 9%;
  width: clamp(34px, 9%, 58px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--butter);
  z-index: 3;
}
.art__frame {
  --m: 3;
  --rest: rotate(-4deg);
  position: absolute;
  left: 13%;
  top: 12%;
  width: 74%;
  padding: 10px;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 14px 14px 0 var(--wine);
  z-index: 4;
}
.art__frame img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.art__frame::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -13px;
  width: 74px;
  height: 22px;
  background: var(--butter);
  border: 2px solid rgba(65, 66, 58, .5);
  transform: translateX(-50%) rotate(-3deg);
}
.art__tag {
  --m: 9;
  --rest: rotate(-5deg);
  position: absolute;
  right: -2%;
  bottom: 12%;
  z-index: 5;
  padding: 10px 13px;
  background: var(--ink);
  color: var(--paper);
  font: 500 .66rem/1.5 var(--mono);
  letter-spacing: .04em;
}
.art__tag span { color: var(--butter); }
.art__badge {
  position: absolute;
  left: -5%;
  bottom: 1%;
  width: clamp(94px, 27%, 122px);
  aspect-ratio: 1;
  color: var(--wine);
  z-index: 5;
  animation: spin 34s linear infinite;
}
.art__badge text {
  font: 500 9px var(--mono);
  letter-spacing: .1em;
  fill: currentColor;
}
.art__badge circle { fill: currentColor; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   跑马灯
   ========================================================================== */
.ticker {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding: 13px 0;
  border-block: 3px solid var(--ink);
}
.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker 38s linear infinite;
  will-change: transform;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__run {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-right: 20px;
  white-space: nowrap;
  font-size: clamp(.95rem, 1.7vw, 1.25rem);
  font-weight: 800;
  line-height: 1.3;
}
.ticker__run i { font-style: normal; color: var(--butter); transform: translateY(-1px); }

@keyframes ticker { to { transform: translate3d(-50%, 0, 0); } }

/* ==========================================================================
   01 关于
   ========================================================================== */
.about { position: relative; background: var(--paper); overflow: hidden; }
.about::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: clamp(96px, 15vw, 210px);
  aspect-ratio: 3 / 2;
  background: var(--rose);
  transform: translate(26%, -26%) rotate(-20deg);
  z-index: 0;
}
.about .plate { position: relative; z-index: 1; }

.about__grid {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: clamp(24px, 3vw, 34px);
}
.chips li {
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  font: 500 .7rem/1 var(--mono);
  transform: skew(-7deg);
  transition: background .3s var(--ease-soft), transform .4s var(--ease);
}
.chips li:hover { background: var(--rose); transform: skew(-7deg) translateY(-3px); }

.facts {
  margin-top: clamp(30px, 4vw, 44px);
  border-top: 2px solid var(--ink);
}
.facts > div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(65, 66, 58, .22);
}
.facts dt {
  font: 500 .7rem/1.9 var(--mono);
  color: var(--rose);
}
.facts dd { margin: 0; font-size: .92rem; font-weight: 600; }

/* ==========================================================================
   02 合作方向
   ========================================================================== */
.services { background: var(--butter); }

.plate__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(28px, 3.4vw, 44px);
}
.plate__head .kicker { margin-bottom: 0; }

.rows { border-top: 3px solid var(--ink); }
.rows__item { border-bottom: 3px solid var(--ink); }

.row {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto 40px;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  padding: clamp(16px, 2.4vw, 24px);
  color: var(--ink);
  text-decoration: none;
  transition: color .3s var(--ease-soft);
}
.row::before {
  content: "";
  position: absolute;
  inset: -3px 0;
  background: var(--rose);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .55s var(--ease);
  z-index: -1;
}
.row:hover, .row:focus-visible { color: var(--paper); }
.row:hover::before, .row:focus-visible::before { transform: scaleX(1); }

.row__idx {
  font: 500 .72rem/1 var(--mono);
  opacity: .55;
  transition: opacity .3s;
}
.row:hover .row__idx { opacity: 1; }

.row__main { display: grid; gap: 5px; min-width: 0; }
.row__name {
  font-size: clamp(1.45rem, 2.9vw, 2.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.01em;
  transition: transform .5s var(--ease);
}
.row:hover .row__name { transform: translateX(8px); }
.row__desc {
  font-size: .84rem;
  font-weight: 500;
  opacity: .72;
  transition: opacity .3s, transform .5s var(--ease);
}
.row:hover .row__desc { opacity: .9; transform: translateX(8px); }

.row__type {
  font: 500 .7rem/1 var(--mono);
  letter-spacing: .04em;
  opacity: .7;
  white-space: nowrap;
}
.row__go {
  font-size: 1.5rem;
  line-height: 1;
  justify-self: end;
  transition: transform .45s var(--ease);
}
.row:hover .row__go, .row:focus-visible .row__go { transform: translate(5px, -5px); }

/* 指针跟随标签 */
.cursor {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 95;
  padding: 7px 10px;
  background: var(--ink);
  color: var(--butter);
  font: 500 .66rem/1 var(--mono);
  letter-spacing: .06em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate3d(var(--cx, 0), var(--cy, 0), 0) rotate(-3deg);
  transition: opacity .25s ease;
  will-change: transform;
}
.cursor.is-on { opacity: 1; }

/* ==========================================================================
   流程条
   ========================================================================== */
.flow { background: var(--ink); color: var(--paper); }
.flow .plate { padding-block: clamp(52px, 6.5vw, 84px); }

.flow__list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
}
.flow__list::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 7px;
  height: 1px;
  background: rgba(255, 249, 233, .2);
}
.flow__step { position: relative; padding-top: 26px; }
.flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--butter);
}
.flow__no {
  position: absolute;
  right: 0;
  top: -4px;
  font: 500 .7rem/1 var(--mono);
  color: rgba(255, 249, 233, .5);
}
.flow__step h3 {
  font-size: 1.06rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.flow__step p {
  font-size: .84rem;
  line-height: 1.7;
  color: rgba(255, 249, 233, .72);
  max-width: 26ch;
}

/* ==========================================================================
   03 能力（手风琴）
   ========================================================================== */
.skills { background: var(--sky); }

.acc { border-top: 3px solid var(--ink); }
.acc__item { border-bottom: 3px solid var(--ink); }
.acc__head { margin: 0; }

.acc__btn {
  width: 100%;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto 34px;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  padding: clamp(16px, 2.4vw, 24px);
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  transition: background .35s var(--ease-soft);
}
.acc__btn:hover { background: var(--pink); }

.acc__idx { font: 500 .72rem/1 var(--mono); opacity: .6; }
.acc__title {
  font-size: clamp(1.45rem, 2.9vw, 2.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.01em;
}
.acc__type {
  font: 500 .7rem/1 var(--mono);
  letter-spacing: .04em;
  opacity: .7;
  white-space: nowrap;
}

.acc__plus {
  position: relative;
  justify-self: end;
  width: 30px;
  height: 30px;
  background: var(--ink);
  color: var(--paper);
  transition: background .4s, color .4s;
}
.acc__plus i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 2px;
  background: currentColor;
  translate: -50% -50%;
  transition: rotate .5s var(--ease);
}
.acc__plus i:nth-child(1) { rotate: 0deg; }
.acc__plus i:nth-child(2) { rotate: 90deg; }
.acc__item.is-open .acc__plus {
  background: var(--butter);
  color: var(--ink);
}
.acc__item.is-open .acc__plus i:nth-child(1) { rotate: 45deg; }
.acc__item.is-open .acc__plus i:nth-child(2) { rotate: 135deg; }

.acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .58s var(--ease);
}
.acc__item.is-open .acc__panel { grid-template-rows: 1fr; }

.acc__inner {
  overflow: hidden;
  min-height: 0;
  max-width: 860px;
  opacity: 0;
  /* 收起后移出无障碍树与 Tab 序列，但不是 display:none，动画才能保留 */
  visibility: hidden;
  transition: opacity .3s ease, visibility 0s linear .3s;
}
.acc__item.is-open .acc__inner {
  opacity: 1;
  visibility: visible;
  transition: opacity .5s ease .12s, visibility 0s linear 0s;
}
.acc__inner p {
  font-size: .98rem;
  line-height: 1.9;
  font-weight: 500;
  padding-left: clamp(0px, 7.5vw, 108px);
  padding-right: clamp(0px, 3.4vw, 54px);
}
.acc__inner p + p { margin-top: 15px; }
.acc__inner p:last-child { padding-bottom: clamp(24px, 3vw, 36px); }

/* ==========================================================================
   04 联系
   ========================================================================== */
.contact { position: relative; background: var(--wine); overflow: hidden; }
.contact::after {
  content: "!";
  position: absolute;
  right: 4%;
  top: 6%;
  font-size: clamp(9rem, 22vw, 20rem);
  font-weight: 800;
  line-height: .7;
  color: var(--rose);
  opacity: .34;
  pointer-events: none;
  user-select: none;
}
.contact .plate { position: relative; z-index: 1; }

.contact__mail {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 22px);
  flex-wrap: wrap;
}
.mail {
  font-size: clamp(1.45rem, 4.6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.015em;
  color: var(--butter);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 4px;
  transition: background-size .55s var(--ease), color .35s;
  padding-bottom: 4px;
}
.mail:hover { background-size: 100% 4px; color: var(--pink); }

.copybtn {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  background: var(--butter);
  color: var(--ink);
  border: 0;
  font: 700 .7rem/1 var(--mono);
  letter-spacing: .04em;
  transform: skew(-8deg);
  cursor: pointer;
  transition: background .3s, color .3s;
}
.copybtn span { transform: skew(8deg); }
.copybtn:hover { background: var(--paper); }
.copybtn.is-done { background: var(--pink); color: var(--ink); }

.tel {
  display: inline-block;
  margin-top: clamp(22px, 2.6vw, 30px);
  font: 500 1rem/1 var(--mono);
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 249, 233, .55);
  padding-bottom: 4px;
  transition: color .25s, border-color .25s;
}
.tel:hover { color: var(--butter); border-color: var(--butter); }

/* ==========================================================================
   页脚
   ========================================================================== */
.foot { background: var(--ink); color: var(--paper); }
.foot__inner {
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font: 500 .7rem/1.6 var(--mono);
  letter-spacing: .03em;
}
.foot__top {
  color: var(--butter);
  text-decoration: none;
  transition: color .25s;
}
.foot__top:hover { color: var(--paper); }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  z-index: 130;
  margin: 0;
  padding: 11px 16px;
  background: var(--ink);
  color: var(--butter);
  font: 500 .72rem/1 var(--mono);
  letter-spacing: .04em;
  transform: translate3d(-50%, 14px, 0);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease, transform .45s var(--ease);
}
.toast.is-on { opacity: 1; transform: translate3d(-50%, 0, 0); }

/* ==========================================================================
   入场动效（仅 JS 环境启用）
   ========================================================================== */
.js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition:
    opacity .75s var(--ease) var(--delay, 0ms),
    transform .75s var(--ease) var(--delay, 0ms);
}
.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* 逐行遮罩升起：整行位移交给内层 span，外层只负责裁剪 */
.js .line[data-reveal] { opacity: 1; transform: none; }
.js .line > span {
  display: inline-block;
  transform: translate3d(0, 108%, 0);
  transition: transform .9s var(--ease) var(--delay, 0ms);
}
.js .line.is-in > span { transform: none; }

.line {
  display: block;
  overflow: hidden;
  padding-bottom: .1em;
  margin-bottom: -.1em;
}

.js .hero__art {
  opacity: 0;
  transform: translate3d(0, 34px, 0);
  transition: opacity .9s var(--ease) .18s, transform 1s var(--ease) .18s;
}
.js .hero__art.is-in { opacity: 1; transform: none; }

/* 顺序延迟 */
.rows__item:nth-child(1) { --delay: 0ms; }
.rows__item:nth-child(2) { --delay: 70ms; }
.rows__item:nth-child(3) { --delay: 140ms; }
.rows__item:nth-child(4) { --delay: 210ms; }

.flow__step:nth-child(1) { --delay: 0ms; }
.flow__step:nth-child(2) { --delay: 80ms; }
.flow__step:nth-child(3) { --delay: 160ms; }
.flow__step:nth-child(4) { --delay: 240ms; }

.chips li:nth-child(1) { --delay: 0ms; }
.chips li:nth-child(2) { --delay: 60ms; }
.chips li:nth-child(3) { --delay: 120ms; }
.chips li:nth-child(4) { --delay: 180ms; }

.hero__title .line:nth-child(2) { --delay: 90ms; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 10px;
    gap: 34px;
  }
  .hero__art { order: 2; }
  .hero__stamp { display: none; }
  .art { max-width: 400px; }
  .about__grid { grid-template-columns: 1fr; }
  .plate__head { display: block; }
  .display--right { text-align: left; margin-top: 18px; }
  .flow__list { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 34px; }
  .flow__list::before { display: none; }
}

@media (max-width: 720px) {
  :root { --gutter: 18px; }
  html { scroll-padding-top: 78px; }

  .menu__link--cta { display: none; }
  .menu { gap: 16px; }

  .hero__title { font-size: clamp(2.75rem, 13.5vw, 4rem); }
  .row, .acc__btn { grid-template-columns: 34px minmax(0, 1fr) 30px; }
  .row__type, .acc__type { display: none; }
  .row__go { font-size: 1.2rem; }
  .art__tag { right: -1%; bottom: 8%; font-size: .6rem; padding: 8px 10px; }
  .art__badge { left: -2%; bottom: -2%; }
  .art__frame { width: 72%; padding: 8px; box-shadow: 10px 10px 0 var(--wine); }

  .acc__inner p { padding-inline: 0; }
  .facts > div { grid-template-columns: 84px 1fr; }
  .contact::after { font-size: 8rem; top: 2%; right: -2%; }
  .foot__inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .ticker { padding: 10px 0; }
}

/* ==========================================================================
   动效偏好：能关就全关
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .js [data-reveal],
  .js .line > span,
  .js .hero__art {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .ticker__track,
  .art__ring::before,
  .art__badge {
    animation: none !important;
  }

  .ruler i { transition: none; }

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .curtain { display: none; }
}