/* revan.top — 移动优先 · 明暗交错杂志版式 */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

@font-face {
  font-family: "Noto Sans SC";
  src: url("../fonts/notosans.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --dark: #0a0a0a;
  --dark-ink: #efedea;
  --dark-soft: #8b8781;
  --paper: #f1efec;          /* 带灰调的白，不是纯白 */
  --paper-2: #e9e6e2;
  --paper-ink: #232120;
  --paper-soft: #625e58;
  --line: rgba(255, 255, 255, .1);
  --skeleton: #171717;

  /* 西文在前、中文在后：西文用 Georgia / 系统 UI，中文落到宋体 / 苹方 */
  --serif: Georgia, "Times New Roman", "Songti SC", "Noto Serif SC", "STSong", "SimSun", serif;
  --sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
          "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;

  --ease: cubic-bezier(.2, .7, .3, 1);
  --pad: 22px;
  --gutter: 34px;
}

html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--dark); color: var(--dark-ink);
  font-family: var(--sans); font-size: 15px; line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: #232120; color: #f1efec; }

/* ============ 页头 ============ */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  padding: 13px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(10, 10, 10, .93);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
}
.brand {
  font-size: 10px; letter-spacing: .28em; font-weight: 500;
  white-space: nowrap; color: var(--dark-ink);
}
nav { display: flex; gap: 20px; font-size: 11px; letter-spacing: .1em; color: var(--dark-soft); white-space: nowrap; }
nav a { position: relative; padding: 3px 0; transition: color .25s; }
nav a.on { color: var(--dark-ink); }
nav a.on::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--dark-ink);
}
nav .en { display: none; }

/* ============ Hero ============ */
.hero {
  position: relative; overflow: hidden;
  min-height: 54vh;               /* 旧内核回退 */
  min-height: 54svh;              /* 现代浏览器 */
  display: flex; flex-direction: column; justify-content: center;
  padding: 51px var(--gutter) 32px;
  background: var(--dark);
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to bottom, rgba(6,6,6,.5) 0%, rgba(6,6,6,.12) 38%, rgba(6,6,6,.62) 100%);
}
.hero-word, .hero-en, .scroll-hint { z-index: 2; }
.hero-brand {
  position: absolute; top: 78px; left: var(--gutter);
  font-size: 12px; letter-spacing: .04em; color: var(--dark-soft);
}
.hero-word {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(34px, 12vw, 64px);
  letter-spacing: -.025em; line-height: 1;
  color: var(--dark-ink);
}
.hero-en {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 34px;
  font-size: 10.5px; line-height: 1.9; letter-spacing: .03em;
  color: #b6b2ac;
}
.scroll-hint {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  width: 1px; height: 28px; background: rgba(255, 255, 255, .18); overflow: hidden;
}
.scroll-hint::after {
  content: ""; position: absolute; left: 0; top: -28px;
  width: 1px; height: 28px; background: rgba(255, 255, 255, .8);
  animation: drip 2.6s var(--ease) infinite;
}
@keyframes drip {
  0% { transform: translateY(0); }
  60%, 100% { transform: translateY(56px); }
}

/* ============ 分节：明暗交替 ============ */
.sec { padding: 74px var(--gutter); }
.sec--light { background: var(--paper); color: var(--paper-ink); }
.sec--dark { background: var(--dark); color: var(--dark-ink); }

/* 一行一句的诗行 */
.lines { font-size: 13px; line-height: 2.15; letter-spacing: .06em; }
.lines span { display: block; }
.sec--light .lines { color: var(--paper-ink); }
.sec--dark .lines { color: #f2f0ec; }
.lines--center { text-align: center; }
.lines--left { text-align: left; }

/* 结尾段：图上方空间减半 */
.sec--tight { padding-top: 15px; }
.sec--tight .inset { margin-top: 7px; }
.sec--short { padding-bottom: 44px; }
.sign-mark {
  display: block; margin: 26px auto 0;
  width: 56px; height: auto;
  opacity: .82;
}

/* ============ 图片：无边框、内缩 ============ */
.inset { margin-top: 44px; padding: 0 10px; }
.inset img { width: 100%; height: auto; }
.inset--narrow { max-width: 74%; margin-left: auto; margin-right: auto; }

.pair2 { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.pair2 img { width: 100%; height: 100%; object-fit: cover; object-position: center 32%; }
.pair2--tall img { aspect-ratio: 3 / 4; }
.pair2--wide img { aspect-ratio: 3 / 2; }

.sec--bgimg {
  position: relative; background-size: auto 130%; background-position: center;
  background-color: var(--dark);
}
.sec--bgimg::before { content: ""; position: absolute; inset: 0; background: rgba(8,8,8,.85); }
.sec--bgimg > * { position: relative; z-index: 1; }

.strip {
  margin-top: 40px; display: grid; grid-auto-flow: column;
  grid-auto-columns: 76%; gap: 8px; overflow-x: auto;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.strip::-webkit-scrollbar { display: none; }
.strip img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; scroll-snap-align: center; }

.quad { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.quad img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 30%; }
.quad + .lines { margin-top: 50px; }
.lines--closing { margin-top: 40px; margin-bottom: 10px; }

.sec--light .cta { margin-top: 56px; border-color: rgba(0, 0, 0, .28); color: var(--paper-ink); }
.sec--light .cta:active { background: rgba(0, 0, 0, .05); border-color: rgba(0, 0, 0, .5); }

.full { background: var(--dark); }
.full img { width: 100%; height: auto; display: block; }

/* 手写体签名 */
.signature {
  padding: 22px var(--gutter) 34px;
  font-family: var(--serif); font-style: italic;
  font-size: 13px; letter-spacing: .12em;
  color: var(--dark-soft); text-align: center;
  background: var(--dark);
}

/* ============ 收尾 CTA ============ */
.cta-block { padding: 64px var(--gutter) 76px; background: var(--dark); }
.cta-block .lines { margin-bottom: 38px; }
.cta {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  height: 52px; border: 1px solid rgba(255, 255, 255, .2);
  font-size: 11.5px; letter-spacing: .28em; color: var(--dark-ink);
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.cta::after { content: "→"; letter-spacing: 0; font-size: 13px; }
.cta:active { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .4); }

/* ============ 二维码（仅桌面） ============ */
.qr { display: none; padding: 10px var(--gutter) 8px; text-align: center; background: var(--dark); }
.qr img { width: 92px; margin: 0 auto 16px; background: #fff; padding: 6px; }
.qr p { font-size: 10px; letter-spacing: .2em; color: var(--dark-soft); line-height: 1.9; }
.qr p span { display: block; font-size: 9px; letter-spacing: .1em; margin-top: 2px; color: #5e5b57; }

/* ============ 内页标题 ============ */
.page-head { padding: 104px var(--gutter) 34px; background: var(--dark); text-align: center; }
.page-head .eyebrow {
  font-size: 9px; letter-spacing: .34em; text-transform: uppercase;
  color: #a9a5a0; margin-bottom: 16px;
}
.page-head h1 {
  font-family: var(--sans); font-weight: 400;
  font-size: 19px; letter-spacing: .2em; line-height: 1.5;
  color: #d0ccc6; margin-right: -.2em;
}
.page-head .desc {
  margin: 14px auto 0; max-width: 320px;
  font-size: 13px; line-height: 2.15; letter-spacing: .06em;
  color: #d0ccc6; text-wrap: balance;
}

.fade {
  height: 20px; background: #ffffff;
}

/* ============ 分类选项卡 ============ */
.tabs {
  display: flex; justify-content: center; gap: 6px;
  padding: 9px var(--gutter) 16px; background: #ffffff;
  flex-wrap: wrap;
}
.tab {
  appearance: none; background: none; border: 1px solid rgba(0,0,0,.16);
  border-radius: 999px; padding: 7px 16px;
  font-family: inherit; font-size: 11.5px; letter-spacing: .14em;
  color: #625e58; cursor: pointer; transition: all .25s var(--ease);
}
.tab.on { background: #1a1a1a; border-color: #1a1a1a; color: #fff; }
.cell .no {
  position: absolute; top: 7px; left: 7px; z-index: 2;
  font-size: 10px; letter-spacing: .08em;
  background: rgba(255,255,255,.88); color: #1a1a1a;
  padding: 2px 7px; border-radius: 999px; pointer-events: none;
}
.cell.hidden { display: none; }

/* ============ 作品画廊 ============ */
.grid {
  display: grid; grid-template-columns: minmax(0, 1fr);
  gap: 10px; padding: 0 8px 70px; background: #ffffff;
}
.cell { position: relative; aspect-ratio: 2 / 3; overflow: hidden; background: var(--skeleton); cursor: zoom-in; }
.cell img {
  width: 100%; height: 100%; object-fit: cover; object-position: center;
  transform: scale(1.38); transform-origin: 50% 35%;
  opacity: 0; transition: opacity .6s var(--ease);
}
.cell img.ready { opacity: 1; }

/* ============ 影片 ============ */
.films { padding: 0 0 60px; display: grid; gap: 0; background: var(--dark); }
.film { position: relative; display: block; overflow: hidden; }
.film-poster { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--skeleton); }
.film-poster img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 30%;
  opacity: 0; transition: opacity .8s var(--ease), transform 1s var(--ease);
}
.film-poster img.ready { opacity: 1; }
.film .veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(0, 0, 0, .45) 0%, rgba(0, 0, 0, 0) 22%),
    linear-gradient(to top, rgba(0, 0, 0, .84) 0%, rgba(0, 0, 0, .28) 30%, rgba(0, 0, 0, 0) 60%);
}
.film .no {
  position: absolute; top: 16px; left: 18px;
  font-size: 9px; letter-spacing: .24em; color: rgba(255, 255, 255, .55);
  font-variant-numeric: tabular-nums;
}
.film .cap { position: absolute; left: 18px; right: 70px; bottom: 20px; }
.film .cap h3 {
  font-weight: 400;
  font-size: 15px; letter-spacing: .08em; line-height: 1.6; color: #fff;
}
.film .cap p { margin-top: 7px; font-size: 9.5px; letter-spacing: .24em; color: rgba(255, 255, 255, .5); }
.film .ring {
  position: absolute; right: 18px; bottom: 20px;
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .42);
  display: flex; align-items: center; justify-content: center;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.film .ring i {
  width: 0; height: 0; margin-left: 2px;
  border-left: 7px solid rgba(255, 255, 255, .9);
  border-top: 5px solid transparent; border-bottom: 5px solid transparent;
}
.film:active .ring { background: rgba(255, 255, 255, .18); border-color: #fff; }

/* ============ 简历 ============ */
.resume-head { display: flex; align-items: center; gap: 16px; padding: 100px var(--gutter) 30px; }
.resume-head img { width: 62px; height: 62px; border-radius: 50%; object-fit: cover; }
.resume-head h1 { font-family: var(--serif); font-weight: 400; font-size: 20px; letter-spacing: .16em; }
.resume-head p { font-size: 9.5px; letter-spacing: .22em; color: var(--dark-soft); margin-top: 7px; }

.resume-body { padding: 0 var(--gutter); }
.resume-body > p { font-size: 13px; line-height: 2.25; letter-spacing: .04em; color: #bdb9b3; margin-bottom: 16px; }

.timeline { margin-top: 14px; border-top: 1px solid var(--line); }
.tl-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.tl-item .yr { font-size: 9.5px; letter-spacing: .18em; color: #5e5b57; font-variant-numeric: tabular-nums; }
.tl-item h3 { font-weight: 400; font-size: 14px; letter-spacing: .04em; margin-top: 8px; color: var(--dark-ink); }
.tl-item p { font-size: 12.5px; color: var(--dark-soft); margin-top: 8px; line-height: 2; letter-spacing: .03em; }

.kv { display: flex; flex-direction: column; gap: 9px; padding: 30px 0 4px; }
.kv div { font-size: 12.5px; color: var(--dark-soft); letter-spacing: .04em; }
.kv div b { color: var(--dark-ink); font-weight: 400; margin-left: 10px; letter-spacing: .06em; }

/* ============ 灯箱 ============ */
#lb {
  position: fixed; inset: 0; z-index: 90; background: rgba(0, 0, 0, .99);
  display: none; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .28s var(--ease);
}
#lb.on { display: flex; }
#lb.show { opacity: 1; }
#lb img { max-width: 100vw; max-height: 86svh; object-fit: contain; }
#lb .idx { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); color: rgba(255, 255, 255, .5); font-size: 10.5px; letter-spacing: .2em; }
#lb button { background: none; border: 0; color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; opacity: .5; }
#lb .close { position: absolute; top: 6px; right: 6px; width: 52px; height: 52px; font-size: 19px; }
#lb .nav { display: none; }

/* ============ 页脚 ============ */
footer { background: var(--dark); border-top: 1px solid var(--line); padding: 30px var(--gutter) 42px; text-align: center; }
footer p { font-size: 10px; letter-spacing: .13em; color: var(--dark-soft); line-height: 2.1; }
footer p a { color: var(--dark-soft); }
footer .icp { font-size: 9px; color: #57544f; letter-spacing: .07em; margin-top: 2px; }

/* ============ 滚动显现 ============ */
html.js .reveal { opacity: 0; transform: translateY(18px); }
html.js .reveal.in { opacity: 1; transform: none; transition: opacity 1s var(--ease), transform 1s var(--ease); }
html.nofx .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
html.nofx .cell img,
html.nofx .film-poster img { opacity: 1 !important; transition: none !important; }

@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; }
  .scroll-hint::after { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* ============ 平板 / 桌面 ============ */
@media (min-width: 760px) {
  :root { --pad: 40px; --gutter: 40px; }

  .hero-brand { top: 45px; font-size: 13px; }
  .hero-en { font-size: 13px; max-width: 460px; bottom: 42px; }

  .sec { padding: 110px 40px; }
  .lines { font-size: 14.5px; line-height: 2.3; max-width: 560px; }
  .lines--center { margin: 0 auto; }
  .inset { max-width: 700px; margin: 54px auto 0; padding: 0; }
  .inset--narrow { max-width: 440px; }
  .pair2 { max-width: 860px; margin: 52px auto 0; gap: 12px; }
  .strip { max-width: 900px; margin: 54px auto 0; grid-auto-columns: 400px; }
  .quad { max-width: 860px; margin: 54px auto 0; }
  .signature { padding: 26px 40px 40px; text-align: center; }

  .cta-block { padding: 90px 40px 100px; }
  .cta-block .lines { max-width: 560px; margin-left: auto; margin-right: auto; }
  .cta { max-width: 340px; margin: 0 auto; height: 56px; }

  .qr { display: block; }

  .page-head { padding: 130px 40px 42px; }
  .page-head h1 { font-size: 23px; }
  .fade { height: 27px; }
  .grid { max-width: 900px; margin: 0 auto; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 0 40px 96px; }
  .films { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 20px 90px; max-width: 1100px; margin: 0 auto; }

  nav { gap: 28px; font-size: 11.5px; }
  nav .en { display: inline; }
  nav a.home-link { display: block; }
  .brand { font-size: 11.5px; }

  .resume-head, .resume-body { max-width: 700px; margin: 0 auto; padding-left: 40px; padding-right: 40px; }
  #lb .nav { display: flex; width: 48px; height: 70px; font-size: 24px; }
  #lb .prev { left: 8px; }
  #lb .next { right: 8px; }
}

@media (min-width: 1280px) {
  .films { grid-template-columns: repeat(3, 1fr); }
  .hero-word { font-size: 51px; }
}