/* ============================================================
   Alun 作品站 · 外壳样式（纸与墨）
   作品页可以在 body 上挂自己的主题类覆盖这里的 token。
   ============================================================ */

@font-face {
  font-family: "Alun Brush";
  src: url("../fonts/brush.woff2") format("woff2");
  font-display: swap;
  /* 中文标点（。，、「」等）这款字排得太开，交给文楷 */
  unicode-range: U+0000-2FFF, U+3040-FEFF, U+FF66-FFFF;
}
@font-face {
  font-family: "Alun Kai";
  src: url("../fonts/kai.woff2") format("woff2");
  font-display: swap;
}

:root {
  --paper: #ece6d6;
  --paper-2: #e3dbc8;
  --paper-3: #d8cfba;
  --ink: #1c1b18;
  --ink-2: #4a463e;
  --ink-3: #7d7668;
  --line: rgba(28, 27, 24, 0.14);
  --line-strong: rgba(28, 27, 24, 0.32);
  --cinnabar: #b03a2e;
  --gold: #a8781f;
  --qing: #2e6e72;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset, 0 18px 40px -24px rgba(40, 30, 10, 0.45);
  --grain-opacity: 0.35;

  --f-brush: "Alun Brush", "Alun Kai", "KaiTi", serif;
  --f-body: "Alun Kai", "KaiTi", "STKaiti", "Songti SC", serif;
  --f-sans: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --f-mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;

  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14130f;
    --paper-2: #1c1a15;
    --paper-3: #26231c;
    --ink: #e9e3d3;
    --ink-2: #bdb6a6;
    --ink-3: #8a8374;
    --line: rgba(233, 227, 211, 0.12);
    --line-strong: rgba(233, 227, 211, 0.3);
    --cinnabar: #d65a4b;
    --gold: #d2a54a;
    --qing: #5fa5a8;
    --shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.8);
    --grain-opacity: 0.18;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #14130f;
  --paper-2: #1c1a15;
  --paper-3: #26231c;
  --ink: #e9e3d3;
  --ink-2: #bdb6a6;
  --ink-3: #8a8374;
  --line: rgba(233, 227, 211, 0.12);
  --line-strong: rgba(233, 227, 211, 0.3);
  --cinnabar: #d65a4b;
  --gold: #d2a54a;
  --qing: #5fa5a8;
  --shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.8);
  --grain-opacity: 0.18;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

/* 宣纸纹理：一层很淡的噪点 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35  0 0 0 0 .3  0 0 0 0 .2  0 0 0 .22 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body > * { position: relative; z-index: 1; }

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
::selection { background: var(--cinnabar); color: #fff; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip {
  position: absolute; left: -999px; top: 8px; z-index: 50;
  background: var(--ink); color: var(--paper); padding: 6px 12px; border-radius: 4px;
}
.skip:focus { left: 8px; }

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

/* ---------- 页头 ---------- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 20px; height: 64px; }

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.seal {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  background: var(--cinnabar); color: #f6efe0;
  font-family: var(--f-brush); font-size: 24px; line-height: 1;
  border-radius: 4px;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.18), inset 0 0 0 3px var(--cinnabar), inset 0 0 0 4px rgba(255, 255, 255, 0.35);
  transform: rotate(-3deg);
}
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name b { font-family: var(--f-brush); font-weight: 400; font-size: 22px; letter-spacing: 0.04em; }
.brand-name small { font-family: var(--f-sans); font-size: 11px; color: var(--ink-3); letter-spacing: 0.24em; }

.site-nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.site-nav a {
  font-family: var(--f-sans); font-size: 14px; text-decoration: none; color: var(--ink-2);
  padding: 6px 12px; border-radius: 999px;
}
.site-nav a:hover { color: var(--ink); background: var(--paper-2); }
.site-nav a[aria-current="page"] { color: var(--ink); background: var(--paper-3); }

.theme-btn {
  width: 36px; height: 36px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: transparent; color: var(--ink-2); cursor: pointer; display: grid; place-items: center;
}
.theme-btn:hover { color: var(--ink); border-color: var(--ink-2); }
.theme-btn svg { width: 18px; height: 18px; }

@media (max-width: 560px) {
  .brand-name small { display: none; }
  .site-nav a { padding: 6px 8px; font-size: 13px; }
  .site-head .wrap { gap: 10px; }
}

/* ---------- 通用排版 ---------- */
.eyebrow {
  font-family: var(--f-sans); font-size: 12px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--ink-3); display: flex; align-items: center; gap: 10px; margin: 0 0 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }

.brush { font-family: var(--f-brush); font-weight: 400; }

h1, h2, h3 { margin: 0; font-weight: 400; line-height: 1.25; }
p { margin: 0 0 1em; }

.sec { padding: clamp(64px, 10vw, 120px) 0; }
.sec-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.sec-title { font-family: var(--f-brush); font-size: clamp(36px, 5vw, 52px); letter-spacing: 0.04em; }
.sec-note { color: var(--ink-3); font-size: 15px; max-width: 32em; margin: 0; }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-sans); font-size: 12px; line-height: 1; letter-spacing: 0.04em;
  padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--ink-2);
}
.tag.live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--qing); }
.tag.wip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

/* 待补充占位：发布前要填掉 */
.todo {
  border: 1px dashed var(--line-strong); border-radius: 8px; padding: 14px 18px;
  color: var(--ink-3); font-family: var(--f-sans); font-size: 14px;
}

/* ---------- 首页 · 题头 ---------- */
.hero { padding: clamp(56px, 12vw, 150px) 0 clamp(48px, 8vw, 96px); position: relative; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.hero-name {
  font-family: var(--f-brush); font-size: clamp(76px, 15vw, 168px); line-height: 0.95; letter-spacing: 0.02em;
  margin: 0 0 18px;
}
.hero-name .latin {
  display: block; font-family: var(--f-sans); font-size: clamp(14px, 1.6vw, 16px); letter-spacing: 0.6em;
  color: var(--ink-3); margin-top: 18px; font-weight: 500;
}
.hero-lede { font-size: clamp(18px, 2.2vw, 22px); color: var(--ink-2); max-width: 26em; margin: 0; }
.hero-lede em { font-style: normal; color: var(--cinnabar); }

.hero-vert {
  writing-mode: vertical-rl; font-family: var(--f-brush); font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: 0.3em; color: var(--ink-2); line-height: 1.6; margin: 0;
  border-right: 1px solid var(--line-strong); padding-right: 14px;
}
.hero-vert span { color: var(--cinnabar); }

/* 背景里一团淡墨 */
.hero::after {
  content: ""; position: absolute; z-index: -1; pointer-events: none;
  right: -8vw; top: -6vw; width: min(62vw, 720px); aspect-ratio: 1;
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--ink) 9%, transparent), transparent 70%),
    radial-gradient(closest-side at 62% 58%, color-mix(in srgb, var(--ink) 7%, transparent), transparent 64%);
  filter: blur(6px);
}

@media (max-width: 720px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-vert { display: none; }
}

/* ---------- 首页 · 作品卡 ---------- */
.works { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 32px); }
@media (max-width: 860px) { .works { grid-template-columns: 1fr; } }

.work {
  position: relative; display: flex; flex-direction: column; border-radius: 14px; overflow: hidden;
  text-decoration: none; color: inherit; box-shadow: var(--shadow); isolation: isolate;
  transition: transform 0.35s cubic-bezier(.2,.7,.2,1), box-shadow 0.35s;
}
a.work:hover { transform: translateY(-4px); }
.work-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.work-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s cubic-bezier(.2,.7,.2,1); }
a.work:hover .work-media img { transform: scale(1.035); }
.work-body { padding: 24px 26px 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.work-title { display: flex; align-items: center; gap: 14px; }
.work-title h3 { font-family: var(--f-brush); font-size: 36px; letter-spacing: 0.04em; }
.work-title .en { font-family: var(--f-sans); font-size: 13px; letter-spacing: 0.24em; opacity: 0.6; text-transform: uppercase; }
.work-desc { margin: 0; font-size: 16px; line-height: 1.75; }
.work-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 6px; }
.work-go {
  font-family: var(--f-sans); font-size: 14px; display: inline-flex; align-items: center; gap: 8px; margin-top: 4px;
}
.work-go .arr { transition: transform 0.3s; }
a.work:hover .work-go .arr { transform: translateX(4px); }

/* AlunHex 卡：墨金 */
.work--alunhex { background: #0f1218; color: #eceff4; }
.work--alunhex .work-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, #0f1218 100%);
}
.work--alunhex .work-icon { width: 46px; height: 46px; border-radius: 12px; box-shadow: 0 0 0 1px rgba(201,168,106,.5); }
.work--alunhex .work-title h3 { color: #e2c995; }
.work--alunhex .work-desc { color: #b9bfcb; }
.work--alunhex .tag { border-color: rgba(201,168,106,.4); color: #d9c49b; }
.work--alunhex .tag.live::before { background: #58c4a6; }
.work--alunhex .work-go { color: #e2c995; }

/* 回火卡：宣纸 */
.work--reforge { background: #efe9da; color: #1c1b18; }
.work--reforge .work-media img { filter: contrast(1.04); }
.work--reforge .work-title h3 { color: #1c1b18; }
.work--reforge .work-desc { color: #4a463e; }
.work--reforge .tag { border-color: rgba(28,27,24,.3); color: #4a463e; }
.work--reforge .tag.wip::before { background: #b03a2e; }
.work--reforge .work-go { color: #7d7668; }
.work--reforge .quote { font-family: var(--f-brush); font-size: 22px; color: #b03a2e; margin: 0; letter-spacing: 0.08em; }

/* ---------- 首页 · 设定集预告 ---------- */
.codex-teaser {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(24px, 5vw, 64px); align-items: center;
  border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong);
  padding: clamp(32px, 6vw, 56px) 0;
}
.codex-teaser .vert {
  writing-mode: vertical-rl; font-family: var(--f-brush); font-size: clamp(40px, 6vw, 64px); letter-spacing: 0.2em; margin: 0; line-height: 1.2;
}
.codex-teaser ul { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.codex-teaser li { font-family: var(--f-sans); font-size: 14px; color: var(--ink-2); display: flex; gap: 8px; align-items: baseline; }
.codex-teaser li b { font-family: var(--f-brush); font-weight: 400; font-size: 20px; color: var(--ink); }
@media (max-width: 560px) {
  .codex-teaser { grid-template-columns: 1fr; }
  .codex-teaser .vert { writing-mode: horizontal-tb; }
}

/* ---------- 页脚 ---------- */
.site-foot { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--ink-3); font-family: var(--f-sans); font-size: 13px; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 10px 28px; justify-content: space-between; align-items: center; }
.site-foot p { margin: 0; }
.site-foot a { color: var(--ink-2); }

/* ---------- 关于 ---------- */
.about { display: grid; grid-template-columns: 220px 1fr; gap: clamp(28px, 6vw, 72px); align-items: start; }
.about-avatar { width: 100%; border-radius: 16px; box-shadow: var(--shadow); }
.about h1 { font-family: var(--f-brush); font-size: clamp(48px, 8vw, 80px); margin-bottom: 8px; }
.about .latin { font-family: var(--f-sans); letter-spacing: 0.4em; color: var(--ink-3); font-size: 14px; margin-bottom: 32px; }
.about h2 { font-family: var(--f-brush); font-size: 28px; margin: 36px 0 12px; }
@media (max-width: 640px) { .about { grid-template-columns: 1fr; } .about-avatar { width: 160px; } }

/* ---------- 进场动效（无 JS / 减少动态时直接可见） ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s cubic-bezier(.2,.7,.2,1), transform 0.9s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- 图片放大 ---------- */
.lightbox {
  border: 0; padding: 0; background: transparent; max-width: 96vw; max-height: 94vh; width: auto;
}
.lightbox::backdrop { background: rgba(8, 9, 12, 0.88); backdrop-filter: blur(4px); }
.lightbox img { max-width: 96vw; max-height: 86vh; width: auto; border-radius: 8px; margin: 0 auto; }
.lightbox p { color: #d6d9df; font-family: var(--f-sans); font-size: 14px; text-align: center; margin: 12px 0 0; }
.lightbox button {
  position: fixed; top: 14px; right: 14px; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.3); background: rgba(0,0,0,.4); color: #fff; font-size: 20px; cursor: pointer;
}
[data-zoom] { cursor: zoom-in; }

/* 首页作品卡上的「开发中」角标 */
.wip-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  font: 600 11.5px/1 var(--f-sans); letter-spacing: 0.12em;
  padding: 5px 8px 5px 18px; border-radius: 4px;
  background: rgba(20, 19, 15, 0.72); color: #efe9da;
}
.wip-badge::before {
  content: ""; position: absolute; left: 7px; top: 50%; width: 6px; height: 6px; margin-top: -3px;
  border-radius: 50%; background: #d65a4b;
}