/* ============================================================
   LOANCOLD — 1bit Dither Design System
   双色有序抖动美学：画面仅存暗部与亮部两色，
   中间调由点阵密度承担（Obra Dinn 式）。
   ============================================================ */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* ---------- 滤镜主题（成对双色，切换由 html[data-filter] 驱动） ---------- */
:root,
[data-filter="amber"]   { --shadow:#1A0F0A; --light:#C9A227; --bg:#0E0805; } /* 琥珀（默认） */
[data-filter="ink"]     { --shadow:#2E3550; --light:#D9D6C3; --bg:#181C29; } /* 墨蓝纸白 */
[data-filter="citron"]  { --shadow:#16160F; --light:#B5C437; --bg:#0B0B07; } /* 黄绿 */
[data-filter="crimson"] { --shadow:#230B0B; --light:#C96A5A; --bg:#130505; } /* 暗红 */

:root {
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, "Courier New", monospace;

  --fs-heading: 40px;
  --fs-sub: 20px;
  --fs-body: 16px;

  --gap: 24px;
  --header-h: 60px;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--light);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  transition: background .45s steps(6), color .45s steps(6);
}

::selection { background: var(--light); color: var(--bg); }

a { color: var(--light); text-decoration: none; }

img { max-width: 100%; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 .6em;
}

/* 像素感分隔线：点阵虚线 */
.px-divider {
  border: 0;
  height: 2px;
  margin: 48px 0;
  background-image: linear-gradient(90deg, var(--light) 0 4px, transparent 4px 8px);
  background-size: 8px 2px;
  opacity: .45;
}

.dim { opacity: .62; }
.faint { opacity: .38; }
.mono { font-family: var(--font-mono); letter-spacing: .04em; }

/* 站点更新说明（Last Update） */
.site-notice {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  opacity: .55;
}

/* ---------- 像素双线边框面板 ---------- */
.px-frame {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 3px;
  transition: background .45s steps(6), border-color .45s steps(6);
}
/* 四角装饰块 */
.px-frame::before,
.px-frame::after {
  content: "";
  position: absolute;
  width: 5px; height: 5px;
  background: var(--light);
  pointer-events: none;
}
.px-frame::before { top: -8px; left: -8px; }
.px-frame::after  { bottom: -8px; right: -8px; }

.px-frame--pad { padding: 24px 28px; }

/* 反色面板（对话面板：亮底暗字） */
.px-frame--invert {
  background: var(--light);
  color: var(--bg);
  border-color: var(--bg);
  outline-color: var(--light);
}

/* ---------- 像素按钮 ---------- */
.btn-px {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 2px;
  background: var(--bg);
  color: var(--light);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .18em;
  cursor: pointer;
  user-select: none;
  transition: none;
}
.btn-px:hover,
.btn-px:focus-visible {
  background: var(--light);
  color: var(--bg);
  transform: translate(0, -2px);
}
.btn-px:active { transform: translate(0, 1px); }

/* ---------- file:// 本地文件模式提示条（fallback.js 注入） ---------- */
.file-banner {
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.8;
  background: var(--shadow);
  color: var(--light);
  border-bottom: 1px dashed var(--light);
}
.file-banner code {
  font-family: var(--font-mono);
  padding: 1px 6px;
  border: 1px solid var(--light);
}
.file-banner .en { opacity: .55; }

/* ---------- 全站共享头部 / 页脚（layout.js 注入） ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: color(var(--bg) 0%); /* fallback 无效值将由下方覆盖 */
  background: var(--bg);
  border-bottom: 1px solid var(--light);
}
.site-header .logo {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .22em;
  font-size: 15px;
}
.site-header .logo em { font-style: normal; opacity: .5; }
.site-header nav { display: flex; gap: 26px; align-items: center; }
.site-header nav a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  opacity: .72;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.site-header nav a:hover { opacity: 1; }
.site-header nav a.is-active { opacity: 1; border-bottom-color: var(--light); }

/* 滤镜切换器 */
.filter-dots { display: flex; gap: 10px; align-items: center; }
.filter-dot {
  width: 14px; height: 14px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 1px;
  padding: 0;
  cursor: pointer;
  background: var(--dot);
  opacity: .5;
  transition: none;
}
.filter-dot:hover { opacity: .85; }
.filter-dot.is-active { opacity: 1; outline-offset: 3px; }

.site-footer {
  padding: 28px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  opacity: .55;
  border-top: 1px solid var(--light);
}
.site-footer a { text-decoration: underline dotted; }

/* ---------- 通用页面容器 ---------- */
.page-main {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 28px 96px;
}
.page-head { margin-bottom: 48px; }
.page-head .kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .35em;
  opacity: .55;
  display: block;
  margin-bottom: 8px;
}
.page-head h1 { font-size: var(--fs-heading); margin: 0; }

/* ---------- 3D 视口 ---------- */
.dither-viewport {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.dither-viewport canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}
.dither-viewport .dither-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .4em;
  opacity: .5;
  animation: blink 1.2s steps(2) infinite;
}

/* ---------- 主页 HERO ---------- */
.hero {
  position: relative;
  height: calc(100vh - var(--header-h));
  min-height: 560px;
}
.hero .dither-viewport { position: absolute; inset: 0; }

.hero-name {
  position: absolute;
  left: 6vw;
  bottom: 18vh;
  z-index: 5;
  pointer-events: none;
}
.hero-name h1 {
  font-size: clamp(44px, 7vw, 84px);
  letter-spacing: .06em;
  margin: 0;
  text-shadow: 4px 4px 0 var(--bg);
}
.hero-name .en {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 20px);
  letter-spacing: .5em;
  margin-top: 10px;
  opacity: .92;
  text-shadow: 2px 2px 0 var(--bg), -1px -1px 0 var(--bg);
}
.hero-name .edu {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  opacity: 1;
  text-shadow: 2px 2px 0 var(--bg), -1px -1px 0 var(--bg);
}

/* Obra Dinn 式对话面板 */
.hero-dialogue {
  position: absolute;
  right: 6vw;
  bottom: 16vh;
  z-index: 5;
  width: min(420px, 86vw);
  padding: 16px 20px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.9;
  min-height: 96px;
}
.hero-dialogue .who {
  display: block;
  font-weight: 700;
  letter-spacing: .28em;
  margin-bottom: 4px;
  opacity: .75;
  font-size: 12px;
}
.hero-dialogue .line { min-height: 1.9em; }
.type-caret {
  display: inline-block;
  width: 9px; height: 1.1em;
  vertical-align: text-bottom;
  background: currentColor;
  margin-left: 2px;
  animation: blink 1s steps(2) infinite;
}

.hero-entries {
  position: absolute;
  left: 6vw;
  top: 8vh;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-entries .btn-px { background: var(--bg); }
.hero-entries .btn-px:hover { background: var(--light); }

/* ---------- 关于页 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}
.about-portrait { position: sticky; top: calc(var(--header-h) + 32px); }
.about-portrait .dither-viewport,
.about-portrait canvas {
  width: 100%;
  aspect-ratio: 3 / 4;
  display: block;
}
.about-portrait canvas { image-rendering: pixelated; height: auto; }
.about-portrait figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  opacity: .55;
  text-align: center;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .35em;
  margin: 0 0 22px;
  padding-left: 14px;
  border-left: 6px solid var(--light);
}

/* 点阵时间轴 */
.timeline { list-style: none; margin: 0; padding: 0 0 0 22px; position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px; top: 6px; bottom: 6px;
  width: 2px;
  background-image: linear-gradient(180deg, var(--light) 0 4px, transparent 4px 8px);
  background-size: 2px 8px;
  opacity: .5;
}
.timeline li { position: relative; padding-bottom: 26px; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -22px; top: 9px;
  width: 12px; height: 12px;
  background: var(--light);
  outline: 1px solid var(--light);
  outline-offset: 2px;
}
.timeline .t-date { font-family: var(--font-mono); font-size: 13px; opacity: .6; letter-spacing: .12em; }
.timeline .t-title { font-weight: 700; font-size: 17px; }
.timeline .t-note { opacity: .65; font-size: 14px; }

.honor-list { list-style: none; margin: 0; padding: 0; }
.honor-list li {
  padding: 12px 0 12px 20px;
  border-bottom: 1px dashed var(--light);
  position: relative;
}
.honor-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 21px;
  width: 7px; height: 7px;
  background: var(--light);
}
.honor-list .h-year { font-family: var(--font-mono); font-size: 13px; opacity: .6; margin-right: 12px; }

/* GitHub Star 徽章（shields.io 动态，实时显示 star 数） */
.gh-badge {
  display: inline-block;
  margin-left: 12px;
  vertical-align: middle;
  line-height: 0;
}
.gh-badge img { height: 20px; display: block; }

.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  padding: 5px 14px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 2px;
  background: var(--bg);
}

/* ---------- 作品页 ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 36px;
}
.work-card {
  display: block;
  border: 1px solid var(--light);
  background: var(--bg);
  padding: 14px;
  transition: none;
}
.work-card:hover { outline: 2px dashed var(--light); outline-offset: 4px; }
.work-card:hover .work-shot,
.work-card:hover .work-shot canvas { transform: translate(-2px, -2px); }
.work-shot {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--light);
  background: var(--bg);
  margin-bottom: 16px;
}
.work-shot canvas {
  width: 100%; height: 100%;
  display: block;
  object-fit: cover;
  image-rendering: pixelated;
  transition: transform .12s steps(2);
}
.work-shot img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(1) contrast(1.2); }
/* 无图项目的文字占位 */
.work-shot--text {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--light);
}
.work-shot-title {
  font-family: var(--font-serif, "Noto Serif SC", serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .12em;
}
.work-card h3 { font-size: 19px; margin: 0 0 6px; }
.work-card .work-meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; opacity: .6; margin-bottom: 10px; }
.work-card p { font-size: 14px; margin: 0 0 12px; opacity: .8; }
.work-links { display: flex; flex-wrap: wrap; gap: 8px; }
.work-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 3px 10px;
  border: 1px solid var(--light);
}
.work-links a:hover { background: var(--light); color: var(--bg); }

/* ---------- 博客页 ---------- */
.blog-mount { height: 220px; margin-bottom: 48px; }
.blog-mount .dither-viewport { height: 100%; border: 1px solid var(--light); }

/* Notion 入口卡片 */
.notion-card {
  display: block;
  padding: 26px 30px;
  margin-bottom: 40px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 3px;
  background: var(--bg);
  position: relative;
  transition: none;
}
.notion-card:hover { background: var(--light); color: var(--bg); }
.notion-title {
  display: block;
  font-family: var(--font-serif, "Noto Serif SC", serif);
  font-size: 22px;
  font-weight: 700;
}
.notion-desc { display: block; margin-top: 8px; font-size: 14px; opacity: .75; }
.notion-cta {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  letter-spacing: .18em;
  border-bottom: 2px solid currentColor;
  padding-bottom: 2px;
}
.archive-title { margin-top: 8px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.chip {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  padding: 6px 16px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 2px;
  background: var(--bg);
  cursor: pointer;
  color: var(--light);
}
.chip.is-active,
.chip:hover { background: var(--light); color: var(--bg); }

.post-list { border-left: 2px solid transparent; }
.post-row {
  display: block;
  padding: 20px 0 20px 24px;
  border-left: 2px solid transparent;
  border-bottom: 1px dashed var(--light);
  position: relative;
}
.post-row::before {
  content: "";
  position: absolute;
  left: -5px; top: 30px;
  width: 8px; height: 8px;
  background: var(--light);
  opacity: .5;
}
.post-row:hover { border-left-color: var(--light); }
.post-row:hover::before { opacity: 1; outline: 1px solid var(--light); outline-offset: 2px; }
.post-row .p-date { font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em; opacity: .55; }
.post-row .p-cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  border: 1px solid var(--light);
  padding: 1px 8px;
  margin-left: 10px;
  opacity: .7;
}
.post-row h3 { font-size: 20px; margin: 6px 0 4px; }
.post-row .p-excerpt { font-size: 14px; opacity: .65; margin: 0; }
.post-row:hover h3 { text-decoration: underline dotted; }

/* ---------- 内容详情页（历史页面复用） ---------- */
.doc-body { max-width: 860px; margin: 0 auto; padding: 48px 28px 96px; }
.doc-body img { border: 1px solid var(--light); padding: 6px; background: var(--bg); }
.doc-body a { text-decoration: underline dotted; }
.doc-back {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  margin-bottom: 28px;
  padding: 6px 14px;
  border: 1px solid var(--light);
  outline: 1px solid var(--light);
  outline-offset: 2px;
}
.doc-back:hover { background: var(--light); color: var(--bg); }

/* ---------- 滚动点阵淡入 ---------- */
.reveal { opacity: 0; transform: translateY(10px); }
.reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity .5s steps(8), transform .5s steps(8);
}

/* ---------- 动画 ---------- */
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-portrait { position: static; max-width: 320px; }
  .work-grid { grid-template-columns: 1fr; }
  .hero { height: auto; min-height: 100vh; display: flex; flex-direction: column; }
  .hero .dither-viewport { position: relative; height: 52vh; flex: none; }
  .hero-entries { position: relative; left: 0; top: 0; flex-direction: row; flex-wrap: wrap; padding: 20px 6vw 0; }
  .hero-name { position: relative; left: 0; bottom: 0; padding: 12px 6vw 0; }
  .hero-name h1 { text-shadow: none; }
  .hero-dialogue { position: relative; right: 0; bottom: 0; margin: 20px 6vw 32px; width: auto; }
}
@media (max-width: 560px) {
  .site-header { padding: 0 16px; }
  .site-header nav { gap: 14px; }
  .page-main { padding: 36px 18px 72px; }
}

/* ============================================================
   PRO 模式 —— 「文艺复兴画册」（默认求职模式）
   变量重映射：全站组件自动翻转为米纸白 / 墨黑 / 暗金
   ============================================================ */
[data-mode="pro"] {
  --bg: #F4EFE6;        /* 米纸白 */
  --light: #1C1A17;     /* 墨黑（重映射：原为亮部色） */
  --shadow: #1C1A17;
  --paper-deep: #EAE3D4;
  --gold: #9A7B2D;      /* 暗金 · 唯一强调色 */
  --ink-soft: #6E675C;
  --font-serif: "Noto Serif SC", "Songti SC", Georgia, "Times New Roman", serif;
}
[data-mode="pro"] body {
  background: linear-gradient(180deg, #F7F2E9 0%, #F4EFE6 34%, #EEE7D8 100%);
}

/* pro 下衬线刊头字体 */
[data-mode="pro"] h1,
[data-mode="pro"] h2,
[data-mode="pro"] h3,
[data-mode="pro"] .section-title { font-family: var(--font-serif); }

/* 金色点阵分隔线 */
[data-mode="pro"] .px-divider {
  background-image: linear-gradient(90deg, var(--gold) 0 4px, transparent 4px 8px);
  opacity: .75;
}

/* ---------- 模式 / 语言按钮 ---------- */
.mode-btn,
.lang-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  padding: 4px 10px;
  background: transparent;
  color: var(--light);
  border: 1px solid var(--light);
  cursor: pointer;
}
.mode-btn:hover,
.lang-btn:hover { background: var(--light); color: var(--bg); }

/* ---------- 双模式门控 ---------- */
[data-mode="pro"] .hero { display: none !important; }
[data-mode="art"] .hero-pro { display: none !important; }
[data-mode="pro"] .filter-dots { display: none; }
[data-mode="pro"] .blog-mount { display: none; }

/* art 模式：内页图片黑白化 + 主题配色滤镜（非 1bit，保证清晰） */
[data-mode="art"] .work-shot img,
[data-mode="art"] .portrait-frame img {
  filter: grayscale(1) contrast(1.18) brightness(1.04);
}
/* 配色染色层常驻，opacity 随模式渐变（pro 0 → art .32），切换平滑 */
.work-shot::after,
.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--light);
  mix-blend-mode: color;
  opacity: 0;
  pointer-events: none;
  transition: opacity .5s ease;
}
[data-mode="art"] .work-shot::after,
[data-mode="art"] .portrait-frame::after { opacity: .32; }

/* 图片 filter / 边框随模式平滑过渡 */
.work-shot img,
.portrait-frame img {
  transition: filter .5s ease, border-color .5s ease, background-color .5s ease, padding .5s ease;
}
.portrait-frame { position: relative; }
.portrait-frame img { width: 100%; display: block; }

/* ---------- PRO 主页：编辑式刊头 ---------- */
.hero-pro {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
}
.hero-pro .wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 7vw 96px;
}
.pro-kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .42em;
  color: var(--gold);
}
.pro-title {
  font-family: var(--font-serif);
  font-size: clamp(64px, 11vw, 128px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: .04em;
  margin: .12em 0 0;
}
.pro-enname {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 18px);
  letter-spacing: .62em;
  color: var(--ink-soft);
  margin-top: 18px;
}
.pro-tagline {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  margin-top: 40px;
}
.pro-rule {
  height: 1px;
  background: var(--gold);
  opacity: .65;
  margin: 34px 0 0;
  position: relative;
}
.pro-rule::after {
  content: "";
  position: absolute;
  right: 0; top: -3px;
  width: 7px; height: 7px;
  background: var(--gold);
}
.pro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 48px;
  margin-top: 18px;
  font-size: 14px;
  color: var(--ink-soft);
}
.pro-index {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 56px;
  margin-top: 48px;
}
.pro-index a {
  display: block;
  padding: 16px 20px;
  border: 1px solid var(--light);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  transition: none;
}
.pro-index a small {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .3em;
  color: var(--gold);
  margin-bottom: 6px;
}
.pro-index a:hover { background: var(--light); color: var(--bg); }
.pro-index a:hover small { color: inherit; opacity: .75; }
.pro-contact {
  margin-top: 42px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ink-soft);
}
.pro-contact a { color: var(--gold); text-decoration: underline dotted; }

/* ---------- MagicButton：金色圆形徽章（波浪发光，吸引点击） ---------- */
.magic-btn {
  position: fixed;
  right: 5vw;
  bottom: 7vh;
  z-index: 40;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gold);
  color: #FFF8EA;
  border: 2px solid #7D6222;
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s ease;
  animation: magic-breathe 2.6s ease-in-out infinite;
}
/* 波纹扩散（似波浪） */
.magic-btn::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  pointer-events: none;
  animation: magic-ripple 2.6s ease-out infinite;
}
.magic-btn:hover { transform: scale(1.1) rotate(10deg); }
[data-mode="art"] .magic-btn { display: none; }
@keyframes magic-ripple {
  0%   { transform: scale(1);    opacity: .85; }
  70%, 100% { transform: scale(2.2); opacity: 0; }
}
@keyframes magic-breathe {
  0%, 100% { box-shadow: 0 0 8px 1px rgba(154, 123, 45, .40); }
  50%      { box-shadow: 0 0 22px 6px rgba(154, 123, 45, .75); }
}

/* ---------- 模式切换扩散动画（1bit 黑金，从按钮位置铺满全屏） ---------- */
.mode-veil {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  background: #0E0805; /* amber 深黑（1bit 黑） */
  clip-path: circle(0% at var(--vx, 85%) var(--vy, 90%));
}
.mode-veil::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 3px #C9A227; /* 金色描边 */
  opacity: .9;
}
.mode-veil.veil-go {
  clip-path: circle(165% at var(--vx, 85%) var(--vy, 90%));
  transition: clip-path .6s cubic-bezier(.55, 0, .35, 1);
}
/* 阶段3：遮罩淡出，露出已切换好的艺术模式（无感渐变） */
.mode-veil.veil-fade {
  opacity: 0;
  transition: opacity .45s ease;
}

/* ---------- PRO 油画框（原图展示） ---------- */
[data-mode="pro"] .work-shot img,
[data-mode="pro"] .about-portrait img {
  border: 1px solid var(--gold);
  outline: 1px solid var(--gold);
  outline-offset: 4px;
  background: #FFFDF8;
  padding: 6px;
  filter: none;
}
[data-mode="pro"] .work-shot { border-color: var(--gold); }
[data-mode="pro"] .work-card:hover { outline-color: var(--gold); }
[data-mode="pro"] .work-shot img { object-fit: cover; image-rendering: auto; }

/* ---------- PRO 响应式 ---------- */
@media (max-width: 640px) {
  .hero-pro .wrap { padding: 48px 6vw 120px; }
  .pro-index { gap: 14px; }
  .pro-index a { flex: 1 1 100%; }
  .magic-btn { right: 6vw; bottom: 5vh; width: 56px; height: 56px; }
}

/* ---------- 降低动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .type-caret, .dither-loading { animation: none; }
  .magic-btn, .magic-btn::before { animation: none; }
  .mode-veil.veil-go { transition: none; }
  .reveal { opacity: 1; transform: none; }
  .reveal.is-visible { transition: none; }
}