/* ============================================================
   S1 · 纸上 ON PAPER — 编辑极简
   ============================================================ */
:root {
  --paper: #f3efe7;
  --paper-2: #ece5d9;
  --paper-3: #e3dbcc;
  --ink: #1a1814;
  --ink-soft: #6a6256;
  --rule: rgba(26, 24, 20, .15);
  --accent: #8a3f27;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --sans: "Helvetica Neue", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Consolas, monospace;
  --pad: clamp(20px, 4.6vw, 80px);
  --sect: clamp(76px, 11vw, 168px);
  --ease: cubic-bezier(.19, .79, .24, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

.grain {
  position: fixed; inset: 0; z-index: 900; pointer-events: none;
  opacity: .05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}

/* ---------------- 导航 ---------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 800;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; background: transparent;
  padding: 22px var(--pad);
  transition: padding .5s var(--ease), background .5s ease, border-color .5s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding: 12px var(--pad);
  background: rgba(243, 239, 231, .92);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--rule);
}

/* 首屏照片铺到页面顶端，导航先透明、字用纸白；滚过一屏再变回纸色 */
.nav-name { color: var(--paper); text-shadow: 0 1px 3px rgba(12, 10, 8, .5), 0 2px 22px rgba(12, 10, 8, .6); }
.nav-en { color: rgba(243, 239, 231, .58); text-shadow: 0 1px 3px rgba(12, 10, 8, .5); }
.nav-links a { color: rgba(243, 239, 231, .84); text-shadow: 0 1px 3px rgba(12, 10, 8, .62), 0 2px 18px rgba(12, 10, 8, .7); }
.nav-links a:hover { color: var(--paper); }
.nav-links a::after { background: var(--paper); }
.nav-admin { color: var(--paper); border-color: rgba(243, 239, 231, .42); text-shadow: 0 1px 3px rgba(12, 10, 8, .5); }
.nav-admin:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.nav-menu { color: var(--paper); }

.nav.is-scrolled .nav-name { color: var(--ink); text-shadow: none; }
.nav.is-scrolled .nav-en { color: var(--ink-soft); }
.nav.is-scrolled .nav-links a { color: var(--ink-soft); text-shadow: none; }
.nav.is-scrolled .nav-links a:hover { color: var(--ink); }
.nav.is-scrolled .nav-links a::after { background: var(--ink); }
.nav.is-scrolled .nav-admin { color: var(--ink); border-color: var(--rule); }
.nav.is-scrolled .nav-admin:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.nav.is-scrolled .nav-menu { color: var(--ink); }

/* 移动端菜单展开：整页变纸色，字转墨 */
.nav.is-open { background: var(--paper); }
.nav.is-open .nav-name { color: var(--ink); text-shadow: none; }
.nav.is-open .nav-menu { color: var(--ink); }
.nav.is-open .nav-admin { color: var(--ink); border-color: var(--rule); }
.nav-brand { display: flex; align-items: baseline; gap: 12px; }
.nav-name { font-family: var(--serif); font-size: 19px; letter-spacing: .06em; }
.nav-en {
  /* 副标现在装的是网名（🍁 拾一），中英混排，
     不能套英文那套 0.28em 字距，否则两个字会散成两个词。
     颜色叠在照片上，得用纸色，不能用墨色。 */
  font: 13px/1 var(--serif); font-weight: 600; letter-spacing: .06em;
  color: rgba(243, 239, 231, .76);
  text-shadow: 0 1px 3px rgba(12, 10, 8, .5);
}
.nav-links { display: flex; gap: clamp(18px, 2.6vw, 42px); }
.nav-links a {
  position: relative; font-size: 13px; letter-spacing: .12em; color: var(--ink-soft);
  padding: 4px 0; transition: color .35s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px;
  background: var(--ink); transform: scaleX(0); transform-origin: right;
  transition: transform .5s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-admin {
  font: 11px var(--mono); letter-spacing: .2em; text-transform: uppercase;
  border: 1px solid var(--rule); border-radius: 999px; padding: 8px 16px;
  transition: background .35s, color .35s, border-color .35s;
}
.nav-admin:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.nav-menu { display: none; font: 11px var(--mono); letter-spacing: .2em; }

/* 首屏：一张照片镐满，纸上的字压在照片上 */
.hero {
  position: relative; min-height: 100svh;
  display: grid; grid-template-rows: 1fr;
  background: #14120f;
}
.hero-media { grid-row: 1; grid-column: 1; position: relative; overflow: hidden; background: #14120f; }
.hero-img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  object-position: 50% 40%;
  opacity: 0; transform: scale(1.08);
  transition: opacity 1.8s ease, transform 14s linear;
  filter: saturate(.9) contrast(1.05) brightness(.94);
}
.hero-img.is-on { opacity: 1; transform: scale(1); }
/* 首屏用竖图时，裁切中心上移，保住人脸 */
.hero-img.is-portrait { object-position: 50% 20%; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
/* 视频模式下轮播图已经不再生成，这条是双保险 */
.hero.has-video .hero-img { display: none; }
/* 片子是航拍云雾，本身明度高，跟暗调照片不是一回事。
   压一层亮度、收一点饱和度，再给文字区多垫一层墨，否则白字会澥进雾里。 */
.hero.has-video .hero-video { filter: brightness(.84) contrast(1.08) saturate(.9); }
.hero.has-video .hero-shade {
  background:
    linear-gradient(to bottom, rgba(16, 14, 11, .8), rgba(16, 14, 11, .56) 9%, rgba(16, 14, 11, .2) 19%, rgba(16, 14, 11, .26) 38%, rgba(16, 14, 11, .5) 58%, rgba(16, 14, 11, .82) 80%, rgba(16, 14, 11, .93)),
    radial-gradient(128% 96% at 50% 40%, rgba(16, 14, 11, .04) 34%, rgba(16, 14, 11, .6) 100%);
}

/* 字直接坐在照片上，所以照片要沉下来：中间留亮，上下压墨 */
.hero-shade {
  grid-row: 1; grid-column: 1; position: relative; z-index: 2; pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(16, 14, 11, .74), rgba(16, 14, 11, .52) 9%, rgba(16, 14, 11, .12) 19%, rgba(16, 14, 11, .04) 34%, rgba(16, 14, 11, .34) 56%, rgba(16, 14, 11, .76) 80%, rgba(16, 14, 11, .9)),
    radial-gradient(142% 108% at 50% 38%, rgba(16, 14, 11, 0) 40%, rgba(16, 14, 11, .5) 100%);
}

.hero-copy {
  grid-row: 1; grid-column: 1; position: relative; z-index: 4;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
  padding: 0 var(--pad) clamp(92px, 14vh, 152px);
  text-align: center; background: none;
}
.hero-kicker {
  font: 9.5px/1.6 var(--mono); letter-spacing: .34em; text-transform: uppercase;
  color: rgba(243, 239, 231, .62); margin: 0 0 16px;
  text-shadow: 0 1px 20px rgba(12, 10, 8, .7);
}
.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.6rem, 5.2vw, 5rem);
  line-height: 1.04; letter-spacing: -.02em;
  margin: 0 0 .34em; color: var(--paper);
  text-shadow: 0 2px 50px rgba(12, 10, 8, .55), 0 1px 6px rgba(12, 10, 8, .28);
}
.hero-title .line { display: block; padding-bottom: .04em; }
/* 压在暗照片上，主色得提亮才看得清。oklch 相对色只改明度、保留色相；
   不支持时回落到原来那个赭色，不影响观感 */
.hero-title .line-2 { font-style: italic; padding-left: .06em; color: #dd8f64; color: oklch(from var(--accent) 0.72 c h); }
.hero-title .ch {
  display: inline-block; transform: translateY(115%);
  animation: chRise 1.05s var(--ease) both;
  animation-delay: calc(var(--i) * 46ms + 200ms);
}
@keyframes chRise { from { transform: translateY(115%); } to { transform: none; } }
.is-loaded .hero-title .ch { transform: none; }

.hero-tail {
  display: flex; align-items: center; justify-content: center;
  gap: clamp(16px, 2.8vw, 40px); flex-wrap: wrap;
}
.hero-desc {
  max-width: 44ch; margin: 0; font-size: 13.5px; line-height: 1.9;
  color: rgba(243, 239, 231, .8); text-align: left;
  text-shadow: 0 1px 22px rgba(12, 10, 8, .8);
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; font-size: 13px; letter-spacing: .12em;
  border-radius: 2px; transition: transform .5s var(--ease), background .4s, color .4s, border-color .4s;
  will-change: transform;
}
.btn i { font-style: normal; transition: transform .4s var(--ease); }
.btn:hover i { transform: translateX(5px); }
.btn-solid { background: var(--paper); color: var(--ink); }
.btn-solid:hover { background: #dd8f64; background: oklch(from var(--accent) 0.72 c h); }
.btn-line { border: 1px solid rgba(243, 239, 231, .45); color: var(--paper); }
.btn-line:hover { border-color: var(--paper); background: rgba(243, 239, 231, .14); }

/* 四角信息位：用的是银幕的框，写字的是纸上的人 */
.hud {
  grid-row: 1; grid-column: 1; position: relative; z-index: 5;
  text-shadow: 0 1px 3px rgba(12, 10, 8, .55), 0 2px 16px rgba(12, 10, 8, .6);
  display: flex; align-items: center; gap: 13px; align-self: start;
  font: 9.5px/1 var(--mono); letter-spacing: .26em; text-transform: uppercase;
  color: var(--paper); text-shadow: 0 1px 18px rgba(26, 24, 20, .75);
  pointer-events: none; white-space: nowrap;
}
.hud-tl { justify-self: start; align-self: start; margin: 104px 0 0 var(--pad); }
.hud-tr { justify-self: end; align-self: start; margin: 104px var(--pad) 0 0; }
.hud-bl { justify-self: start; align-self: end; margin: 0 0 40px var(--pad); }
.hud-br { justify-self: end; align-self: end; margin: 0 var(--pad) 40px 0; }
.hud-dim { color: rgba(243, 239, 231, .66); }
.hud-line { width: 38px; height: 1px; background: rgba(243, 239, 231, .55); display: inline-block; }
.hud-dot i {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--paper); box-shadow: 0 0 0 3px rgba(243, 239, 231, .22);
  animation: hudBlink 2.6s ease-in-out infinite;
}
@keyframes hudBlink { 0%, 40% { opacity: 1; } 55%, 100% { opacity: .18; } }
.hud-label { white-space: nowrap; }

/* ---------------- 通用段落标题 ---------------- */
.sec-label {
  display: flex; align-items: center; gap: 14px;
  font: 10px var(--mono); letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: clamp(36px, 5.5vw, 76px);
}
.sec-num { color: var(--accent); }
.sec-line { width: clamp(28px, 8vw, 120px); height: 1px; background: var(--rule); }
.sec-t { letter-spacing: .22em; }

/* ---------------- 关于 ---------------- */
.about { padding: var(--sect) var(--pad) 0; }
.about-grid {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(28px, 5vw, 96px); align-items: start;
}
.about-photo {
  aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-3); position: relative;
}
.about-photo::after {
  content: ""; position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25);
}
.about-img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  transition: filter 1s ease, transform 1.4s var(--ease);
}
.about-photo:hover .about-img { filter: grayscale(0); transform: scale(1.03); }

.about-name {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.2rem, 3.6vw, 3.4rem); line-height: 1.1;
  letter-spacing: .04em; margin: 0 0 12px;
}
.about-role {
  font: 11px var(--mono); letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 34px;
}
.about-text {
  font-size: 15.5px; line-height: 2.15; color: var(--ink-soft);
  max-width: 44ch; margin: 0;
}
.about-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(44px, 7vw, 96px); border-top: 1px solid var(--rule);
}
.stat {
  padding: 26px 0 0; display: flex; flex-direction: column; gap: 6px;
  opacity: 0; transform: translateY(16px); transition: all .8s var(--ease);
  transition-delay: calc(var(--i) * 90ms);
}
.about-stats.in .stat, .stat.in { opacity: 1; transform: none; }
.stat-k {
  font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1; letter-spacing: -.02em;
}
.stat-v { font: 10px var(--mono); letter-spacing: .2em; color: var(--ink-soft); text-transform: uppercase; }

/* ---------------- 作品集 ---------------- */
.works { padding: var(--sect) var(--pad); margin-top: var(--sect); background: var(--paper-2); }
.works-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; border-bottom: 1px solid var(--rule); padding-bottom: 22px;
}
.works-head .sec-label { margin-bottom: 0; }
.works-note { max-width: 30ch; margin: 0; font-size: 12.5px; line-height: 1.9; color: var(--ink-soft); text-align: right; }

.works-list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(22px, 3vw, 46px); align-items: start;
}
.cat {
  position: relative; background: #fbf8f2;
  border: 1px solid rgba(26, 24, 20, .12);
  box-shadow: 0 16px 38px -34px rgba(26, 24, 20, .6);
  padding: clamp(9px, .9vw, 13px);
  opacity: 0; transform: translateY(30px);
  transition: opacity 1s ease, transform 1.1s var(--ease), box-shadow .5s var(--ease), background .5s;
}
.cat.in { opacity: 1; transform: none; }
.cat:hover { background: #fffdf8; box-shadow: 0 36px 62px -48px rgba(26, 24, 20, .55); }
.cat:nth-child(even) { margin-top: clamp(24px, 4.5vw, 76px); }
.cat-stage {
  position: relative; aspect-ratio: 4 / 5; overflow: hidden;
  background: var(--paper-3); cursor: pointer;
}
.cat-slides { position: absolute; inset: 0; }
.cat-slide {
  position: absolute; inset: 0; opacity: 0;
  transition: opacity 1.2s ease;
}
.cat-slide.is-on { opacity: 1; }
.cat-img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.07); transition: transform 7s linear, filter 1s ease;
}
.cat-slide.is-on .cat-img { transform: scale(1); }
.cat-stage:hover .cat-img { filter: brightness(.94); }

/* 竖图完整显示时：留白用纸色，不用灰块；UI 文字随之转墨色 */
.cat-stage .pf-fit-bg { filter: blur(60px) saturate(.25) brightness(1.92); opacity: .62; mix-blend-mode: multiply; }
.cat-stage:has(.pf-fit-bg) { background: #efe7d8; }
.cat-stage:has(.pf-fit-bg) .pf-fit-bg { display: none; }
.cat-stage:has(.pf-fit-bg)::after {
  background: linear-gradient(to bottom, rgba(0, 0, 0, .045), rgba(0, 0, 0, 0) 15%, rgba(0, 0, 0, 0) 82%, rgba(0, 0, 0, .07));
}
.cat-stage:has(.pf-fit-bg) .cat-ui { color: var(--ink); text-shadow: none; }
.cat-stage:has(.pf-fit-bg) .cat-zoom { color: var(--ink); border-color: rgba(0, 0, 0, .26); }
.cat-stage:has(.pf-fit-bg) .cat-zoom:hover { background: var(--ink); color: var(--paper); }

.cat-stage::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(0, 0, 0, .3), rgba(0, 0, 0, 0) 24%, rgba(0, 0, 0, 0) 72%, rgba(0, 0, 0, .38));
}

.cat-ui {
  position: absolute; inset: 0; z-index: 2;
  pointer-events: none; color: #fff;
  font: 10px var(--mono); letter-spacing: .22em; text-transform: uppercase;
  text-shadow: 0 1px 3px rgba(0, 0, 0, .5), 0 2px 20px rgba(0, 0, 0, .55);
}
.cat-no { position: absolute; left: 20px; top: 18px; }
.cat-tag { position: absolute; right: 20px; top: 18px; }
.cat-cap { position: absolute; left: 20px; bottom: 18px; }
.cat-count { position: absolute; right: 20px; bottom: 18px; }

.cat-zoom {
  position: absolute; right: 16px; bottom: 46px;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .55); color: #fff;
  display: grid; place-items: center; font-size: 15px;
  opacity: 0; transform: translateY(8px); transition: all .5s var(--ease);
  backdrop-filter: blur(4px);
}
.cat-stage:hover .cat-zoom { opacity: 1; transform: none; }
.cat-zoom:hover { background: #fff; color: #111; }

.cat-body { padding: clamp(18px, 1.9vw, 28px) clamp(6px, .9vw, 14px) clamp(10px, 1.2vw, 18px); }

.cat-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.cat-name {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.6rem, 2.3vw, 2.2rem); line-height: 1.2;
  letter-spacing: .04em; margin: 0;
}
.cat-en {
  font: 9.5px var(--mono); letter-spacing: .24em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 4px;
}
.cat-desc { margin: 14px 0 26px; font-size: 13.5px; line-height: 1.95; color: var(--ink-soft); }

.cat-toggle {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 0; font-size: 12.5px; letter-spacing: .1em;
  border-bottom: 1px solid var(--ink); transition: color .35s, border-color .35s;
  will-change: transform;
}
.cat-toggle-i { font-style: normal; font-size: 14px; transition: transform .5s var(--ease); }
.cat-toggle:hover { color: var(--accent); border-color: var(--accent); }
.cat.is-open .cat-toggle-i { transform: rotate(180deg); }

.cat-grid {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows .75s var(--ease), margin-top .75s var(--ease);
  margin-top: 0;
}
.cat.is-open .cat-grid { grid-template-rows: 1fr; margin-top: clamp(10px, 1.4vw, 18px); }
.cat-grid-in {
  overflow: hidden;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(8px, 1vw, 14px);
}
.thumb {
  position: relative; aspect-ratio: 4 / 5; overflow: hidden;
  background: var(--paper-3); padding: 0; text-align: left;
  opacity: 0; transform: translateY(18px);
  transition: opacity .6s ease, transform .7s var(--ease);
  transition-delay: calc(var(--i) * 55ms);
}
.cat.is-open .thumb { opacity: 1; transform: none; }
.thumb-img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease), filter .5s; }
.thumb:hover .thumb-img { transform: scale(1.05); filter: brightness(.82); }
.thumb-meta {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 12px 12px;
  display: flex; flex-direction: column; gap: 2px;
  background: linear-gradient(transparent, rgba(0, 0, 0, .62));
  color: #fff; opacity: 0; transform: translateY(6px);
  transition: all .45s var(--ease);
}
.thumb:hover .thumb-meta { opacity: 1; transform: none; }
.thumb-meta b { font-weight: 400; font-size: 12px; letter-spacing: .04em; }
.thumb-meta i { font: 9px var(--mono); letter-spacing: .2em; opacity: .7; font-style: normal; }

.play-badge {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .8); color: #fff;
  display: grid; place-items: center; font-size: 11px;
  background: rgba(0, 0, 0, .18); backdrop-filter: blur(3px);
  pointer-events: none;
}

/* ---------------- 技能 ---------------- */
.skills { padding: var(--sect) var(--pad); }
.skills-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 96px); }
.skills-intro { margin: 0; font-size: 14px; line-height: 2.1; color: var(--ink-soft); max-width: 26ch; }
.skills-list { border-top: 1px solid var(--rule); }
.skill {
  padding: 26px 0 24px; border-bottom: 1px solid var(--rule);
  opacity: 0; transform: translateY(14px);
  transition: opacity .8s ease, transform .8s var(--ease);
  transition-delay: calc(var(--i) * 70ms);
}
.skill.in { opacity: 1; transform: none; }
.skill-top { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; }
.skill-name { font-family: var(--serif); font-size: 1.3rem; letter-spacing: .05em; }
.skill-lv { font: 11px var(--mono); color: var(--accent); letter-spacing: .1em; }
.skill-bar { height: 1px; background: var(--rule); margin: 16px 0 12px; overflow: hidden; }
.skill-bar i {
  display: block; height: 100%; width: 0; background: var(--ink);
  transition: width 1.4s var(--ease);
  transition-delay: calc(var(--i) * 90ms + 200ms);
}
.skill.in .skill-bar i { width: var(--v); }
.skill-desc { margin: 0; font-size: 12.5px; line-height: 1.9; color: var(--ink-soft); }

/* ---------------- 联系 ---------------- */
.contact {
  padding: var(--sect) var(--pad) calc(var(--sect) * .7);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}
.contact-kicker {
  font: 10px var(--mono); letter-spacing: .32em; color: var(--accent);
  margin: 0 0 28px;
}
.contact-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.6rem, 7vw, 6rem); line-height: 1.02; letter-spacing: -.02em;
  margin: 0 0 26px;
}
.contact-text { max-width: 38ch; margin: 0 0 clamp(40px, 6vw, 72px); font-size: 14.5px; line-height: 2; color: var(--ink-soft); }

.contact-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; border-top: 1px solid var(--rule); }
.c-item {
  padding: 26px 0 30px; display: flex; flex-direction: column; gap: 8px;
  opacity: 0; transform: translateY(14px); transition: all .8s var(--ease);
  transition-delay: calc(var(--i) * 80ms);
}
.c-item.in { opacity: 1; transform: none; }
.c-k { font: 9.5px var(--mono); letter-spacing: .24em; color: var(--ink-soft); text-transform: uppercase; }
.c-v { font-family: var(--serif); font-size: clamp(1.15rem, 1.6vw, 1.5rem); letter-spacing: .02em; }
.c-note { font-size: 11.5px; color: var(--ink-soft); }

.contact-socials { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.c-soc {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--rule); border-radius: 999px;
  padding: 8px 16px; font-size: 12px;
  transition: background .35s, color .35s, border-color .35s;
}
.c-soc i { font-style: normal; font: 9px var(--mono); letter-spacing: .16em; color: var(--ink-soft); }
.c-soc:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.c-soc:hover i { color: rgba(255, 255, 255, .6); }

.contact-end {
  display: flex; justify-content: space-between; gap: 20px;
  margin-top: clamp(48px, 7vw, 90px); padding-top: 18px;
  border-top: 1px solid var(--rule);
  font: 10px var(--mono); letter-spacing: .2em; color: var(--ink-soft); text-transform: uppercase;
}

.foot {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 22px var(--pad); font: 10px var(--mono); letter-spacing: .18em;
  color: var(--ink-soft); background: var(--paper-2); text-transform: uppercase;
}
.foot a:hover { color: var(--accent); }

/* ---------------- 灯箱 ---------------- */
.lb {
  position: fixed; inset: 0; z-index: 1200;
  background: rgba(242, 238, 230, .97);
  display: grid; place-items: center; padding: 5vh 6vw;
  opacity: 0; visibility: hidden; transition: opacity .5s ease, visibility .5s;
}
.lb.is-open { opacity: 1; visibility: visible; }
.lb-stage { max-width: 92vw; max-height: 82vh; display: flex; align-items: center; justify-content: center; }
.lb-img, .lb-video {
  max-width: 92vw; max-height: 82vh; object-fit: contain;
  transform: scale(.97); transition: transform .6s var(--ease);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .18);
}
.lb.is-open .lb-img, .lb.is-open .lb-video { transform: none; }
.lb-bar {
  position: fixed; left: 0; right: 0; bottom: 24px;
  display: flex; justify-content: center; gap: 20px;
  font: 10px var(--mono); letter-spacing: .2em; color: var(--ink-soft);
}
.lb-btn {
  position: fixed; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid var(--rule); font-size: 20px;
  transition: background .3s, color .3s;
}
.lb-btn:hover { background: var(--ink); color: var(--paper); }
.lb-prev { left: 2.6vw; } .lb-next { right: 2.6vw; }
.lb-close {
  position: fixed; top: 22px; right: 26px;
  font: 11px var(--mono); letter-spacing: .2em;
}
.lb-close:hover { color: var(--accent); }

/* ---------------- 入场 ---------------- */
[data-reveal] {
  opacity: 0; transform: translateY(26px);
  transition: opacity .95s ease, transform 1s var(--ease);
}
[data-reveal].in { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .hud-tl, .hud-tr { margin-top: 84px; }
  .works-list { gap: clamp(16px, 2.4vw, 30px); }
  .cat-grid-in { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .works-list { grid-template-columns: 1fr; }
  .cat:nth-child(even) { margin-top: 0; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-menu { display: block; }
  .nav.is-open .nav-links {
    display: flex; position: fixed; inset: 0; z-index: -1;
    flex-direction: column; justify-content: center; align-items: center; gap: 26px;
    background: var(--paper); font-family: var(--serif); font-size: 1.6rem;
  }
  .nav.is-open .nav-links a { color: var(--ink); font-size: 1.5rem; }
  .nav-brand .nav-en { display: none; }
  .nav-admin { margin-left: auto; }
  .nav-menu { margin-left: 16px; }

  .hero { min-height: 100svh; }
  .hero-copy { padding: 0 var(--pad) clamp(64px, 12vh, 104px); }
  .hero-title { font-size: clamp(2.1rem, 9.6vw, 3.2rem); }
  .hero-kicker { letter-spacing: .24em; }
  .hero-tail { gap: 16px; }
  .hero-desc { font-size: 13px; max-width: none; text-align: center; }
  /* 手机竖屏裁切极窄（约片宽 1/4），默认居中会正好落在两人中间的空挡上。
     这里按当前演示图逐张给取景位置；换成自己的照片后如果裁得不准，
     把下面三行删掉即可回到默认居中。 */
  .hero-img { object-position: 50% 48%; }
  .hero-media .hero-img:nth-child(1) { object-position: 30% 50%; }
  .hero-media .hero-img:nth-child(2) { object-position: 50% 44%; }
  .hero-media .hero-img:nth-child(3) { object-position: 34% 50%; }
  .hud-tl { margin: 96px 0 0 var(--pad); }
  .hud-tr, .hud-br, .hud-bl { display: none; }

  .about-grid, .skills-grid, .contact-items { grid-template-columns: 1fr; }
  .about-photo { max-width: 62%; }
  .about-stats { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }

  .works-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .works-note { text-align: left; }
  .cat-stage { aspect-ratio: 4 / 5; }
  .cat-grid-in { grid-template-columns: repeat(2, 1fr); }
  .cat-toggle { margin-top: 4px; }

  .foot { flex-direction: column; gap: 8px; }
  .lb-btn { width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}