/* ==========================================================================
   个人网站样式表 —— 暗色霓虹 + 玻璃拟态
   手写 CSS，零依赖；所有颜色/间距集中在 :root 的 token 里，改一处即可换肤。
   目录：
     01 主题 token            02 基础与重置        03 通用组件（按钮/玻璃卡片/标签）
     04 背景光效              05 顶栏与导航        06 Hero
     07 通用区块与标题        08 关于             09 技能
     10 作品                  11 时间线           12 手记
     13 联系与表单            14 页脚/回到顶部/Toast
     15 内页（作品详情 / 文章）                   16 响应式
     17 无障碍与降级
   ========================================================================== */

/* ============================== 01 主题 token ============================== */
:root{
  /* 配色由 body[data-accent] 决定，默认 aurora */
  --bg:            #05060c;
  --bg-2:          #090b16;
  --ink:           #eef2ff;
  --ink-2:         #b9c2da;
  --ink-3:         #8690ad;

  --accent:        #67e8f9;
  --accent-2:      #a78bfa;
  --accent-3:      #f472b6;
  --accentInk:     #05060c;

  --glass:         rgba(255,255,255,.045);
  --glass-2:       rgba(255,255,255,.075);
  --line:          rgba(255,255,255,.10);
  --line-2:        rgba(255,255,255,.18);
  --shadow:        0 24px 60px rgba(0,0,0,.55);
  --glow:          0 10px 30px color-mix(in srgb, var(--accent) 26%, transparent);
  --glow-2:        0 10px 30px color-mix(in srgb, var(--accent-2) 28%, transparent);

  --r:             16px;
  --r-lg:          22px;
  --r-sm:          10px;
  --wrap:          1180px;
  --pad:           clamp(18px, 4vw, 34px);
  --secGap:        clamp(64px, 9vw, 120px);

  --font: "Inter", "Segoe UI Variable Text", "Segoe UI", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, "SFMono-Regular", ui-monospace, monospace;

  --ease: cubic-bezier(.22,.68,0,1);
  --dur:  .55s;
}
/* 主题切换：data-accent 由 JS 写在 <html> 上，这里两种挂载点都写一遍，
   免得选择器挂错元素导致"属性变了但颜色没变" */
html[data-accent="sunset"], body[data-accent="sunset"]{
  --accent:#fbbf24; --accent-2:#fb7185; --accent-3:#c084fc;
  --bg:#0c0709; --bg-2:#160a10;
}
html[data-accent="matrix"], body[data-accent="matrix"]{
  --accent:#4ade80; --accent-2:#22d3ee; --accent-3:#a3e635;
  --bg:#040a07; --bg-2:#07130d;
}

/* ============================== 02 基础与重置 ============================== */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:86px; -webkit-text-size-adjust:100%; }
/* 首屏定位期间关掉平滑：否则从别的页面点 ../index.html#about 会先空滚一段 */
html.bootInit{ scroll-behavior:auto; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* 页面底色的一层极淡径向渐变，避免纯黑发死 */
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    radial-gradient(1100px 700px at 12% -8%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 62%),
    radial-gradient(900px 620px at 92% 6%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 55%, var(--bg) 100%);
}
img,svg{ max-width:100%; }
h1,h2,h3,h4{ line-height:1.18; margin:0; letter-spacing:-.015em; font-weight:750; }
h1{ font-size:clamp(2.5rem, 7.2vw, 4.4rem); }
h2{ font-size:clamp(1.7rem, 4.2vw, 2.5rem); }
h3{ font-size:1.09rem; font-weight:700; }
p{ margin:0 0 1em; color:var(--ink-2); }
p:last-child{ margin-bottom:0; }
a{ color:inherit; text-decoration:none; }
b,strong{ color:var(--ink); font-weight:650; }
::selection{ background:color-mix(in srgb, var(--accent) 42%, transparent); color:#fff; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:6px; }
/* 统一滚动条 */
*{ scrollbar-width:thin; scrollbar-color:var(--line-2) transparent; }
*::-webkit-scrollbar{ width:10px; height:10px; }
*::-webkit-scrollbar-thumb{ background:var(--line-2); border-radius:99px; border:3px solid transparent; background-clip:content-box; }
*::-webkit-scrollbar-track{ background:transparent; }

.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 var(--pad); }
.skipLink{
  position:absolute; left:-9999px; top:8px; z-index:99;
  background:var(--accent); color:var(--accentInk); padding:10px 16px; border-radius:var(--r-sm); font-weight:700;
}
.skipLink:focus{ left:16px; }

/* 顶部阅读进度条 */
.progress{
  position:fixed; inset:0 auto auto 0; height:2px; width:0; z-index:60;
  background:linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  box-shadow:0 0 18px color-mix(in srgb, var(--accent) 70%, transparent);
  transition:width .12s linear;
}

/* ============================== 03 通用组件 ============================== */
.gradText{
  background:linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 52%, var(--accent-3) 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  text-shadow:0 0 34px color-mix(in srgb, var(--accent-2) 42%, transparent);
}
.glass{
  position:relative;
  background:linear-gradient(160deg, var(--glass-2), var(--glass));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
}
.glass.pad{ padding:clamp(20px, 3vw, 30px); }
/* 玻璃卡片顶部的一道细高光，让边缘看起来有厚度 */
.glass::after{
  content:""; position:absolute; inset:0 0 auto 0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent);
  opacity:.6; pointer-events:none;
}
/* 悬停：跟随鼠标的柔光 + 轻微上浮 */
.glowHover{ position:relative; }
.glowHover::before{
  content:""; position:absolute; inset:0; border-radius:inherit; pointer-events:none; opacity:0;
  transition:opacity .35s var(--ease);
  background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),
    color-mix(in srgb, var(--accent) 20%, transparent), transparent 65%);
}
.glowHover:hover::before{ opacity:1; }
.glowHover:hover{ transform:translateY(-4px); border-color:var(--line-2); }
/* 鼠标跟随 3D 倾斜（JS 只写 --rx/--ry 两个角度，过渡交给 CSS） */
.tilt{ transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(var(--ty,0px)); }
.glass, .glowHover{ transition:transform .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease); }
.glowHover:hover{ box-shadow:var(--shadow), var(--glow); }

.btn{
  --btnBg:transparent; --btnInk:var(--ink); --btnLine:var(--line-2);
  display:inline-flex; align-items:center; gap:.55em;
  padding:.82em 1.25em; border-radius:999px;
  border:1px solid var(--btnLine); background:var(--btnBg); color:var(--btnInk);
  font:600 .95rem/1 var(--font); cursor:pointer; white-space:nowrap;
  transition:transform .28s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}
.btn svg{ transition:transform .3s var(--ease); }
.btn:hover{ transform:translateY(-2px); }
.btnPrimary{
  --btnInk:var(--accentInk);
  background:linear-gradient(100deg, var(--accent), var(--accent-2));
  border-color:transparent; box-shadow:var(--glow);
}
.btnPrimary:hover{ box-shadow:var(--glow), var(--glow-2); }
.btnPrimary:hover svg{ transform:translateX(3px); }
.btnGhost{ background:var(--glass); border-color:var(--line-2); backdrop-filter:blur(8px); }
.btnGhost:hover{ border-color:var(--accent); color:var(--accent); }
.btnSm{ padding:.58em 1em; font-size:.86rem; }

.iconBtn{
  display:grid; place-items:center; width:40px; height:40px; flex:0 0 auto;
  border-radius:12px; border:1px solid var(--line); background:var(--glass);
  color:var(--ink-2); cursor:pointer; transition:.3s var(--ease);
}
.iconBtn:hover{ color:var(--accent); border-color:var(--accent); transform:translateY(-2px); }

.pill{
  display:inline-flex; align-items:center; padding:.3em .72em; border-radius:999px;
  border:1px solid var(--line); background:var(--glass); color:var(--ink-3);
  font-size:.76rem; font-weight:600; letter-spacing:.02em;
}
.tags{ list-style:none; display:flex; flex-wrap:wrap; gap:.45rem; margin:14px 0 0; padding:0; }
.tags li{
  font-size:.74rem; font-weight:600; color:var(--ink-2);
  border:1px solid var(--line); border-radius:8px; padding:.24em .6em;
  background:color-mix(in srgb, var(--accent) 7%, transparent);
}
.year{ font:.76rem/1 var(--mono); color:var(--ink-3); letter-spacing:.04em; white-space:nowrap; }
.miniHead{
  font-size:.82rem; text-transform:uppercase; letter-spacing:.14em; color:var(--ink-3);
  font-weight:700; margin:0 0 18px; padding-bottom:12px; border-bottom:1px solid var(--line);
}
.linkArrow{
  display:inline-flex; align-items:center; gap:.42em;
  font-weight:650; font-size:.92rem; color:var(--accent);
}
.linkArrow svg{ transition:transform .3s var(--ease); }
.linkArrow:hover svg{ transform:translateX(4px); }

/* 滚动进入动画：默认隐藏，.in 由 JS 加上 */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal[data-delay="1"]{ transition-delay:.08s; }
.reveal[data-delay="2"]{ transition-delay:.16s; }
.reveal[data-delay="3"]{ transition-delay:.24s; }
.reveal[data-delay="4"]{ transition-delay:.32s; }
.reveal[data-delay="5"]{ transition-delay:.4s; }

/* ============================== 04 背景光效 ============================== */
.bgfx{ position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none; }
.blob{
  position:absolute; display:block; border-radius:50%; filter:blur(90px); opacity:.5;
  mix-blend-mode:screen; will-change:transform;
}
.b1{ width:44vw; height:44vw; left:-8vw; top:-6vw; background:color-mix(in srgb, var(--accent) 60%, transparent); animation:float1 22s ease-in-out infinite; }
.b2{ width:38vw; height:38vw; right:-6vw; top:16vh; background:color-mix(in srgb, var(--accent-2) 60%, transparent); animation:float2 26s ease-in-out infinite; }
.b3{ width:34vw; height:34vw; left:32vw; bottom:-12vw; background:color-mix(in srgb, var(--accent-3) 48%, transparent); animation:float3 30s ease-in-out infinite; }
@keyframes float1{ 50%{ transform:translate3d(6vw,4vh,0) scale(1.12); } }
@keyframes float2{ 50%{ transform:translate3d(-6vw,6vh,0) scale(1.08); } }
@keyframes float3{ 50%{ transform:translate3d(4vw,-5vh,0) scale(1.15); } }
.grid{
  position:absolute; inset:-2px; opacity:.5;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 50% 0%, #000 25%, transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%, #000 25%, transparent 78%);
}

/* ============================== 05 顶栏与导航 ============================== */
.topbar{ position:fixed; inset:0 0 auto 0; z-index:50; transition:background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s; border-bottom:1px solid transparent; }
.topbar.is-stuck{
  background:color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.topbar-in{ display:flex; align-items:center; gap:18px; height:70px; }
.brand{ display:inline-flex; align-items:center; gap:11px; font-weight:750; letter-spacing:-.01em; }
.brandMark{
  display:grid; place-items:center; width:34px; height:34px; border-radius:11px;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  color:var(--accentInk); font:800 .78rem/1 var(--mono); letter-spacing:.02em;
  box-shadow:var(--glow);
}
.brandText{ font-size:1rem; }
.nav{ display:flex; align-items:center; gap:4px; margin-left:auto; }
.nav a{
  position:relative; padding:.5em .8em; border-radius:999px;
  font-size:.92rem; font-weight:600; color:var(--ink-2); transition:.3s var(--ease);
}
.nav a:hover{ color:var(--ink); background:var(--glass); }
.nav a.is-active{ color:var(--accent); background:color-mix(in srgb, var(--accent) 12%, transparent); }
.topbar-act{ display:flex; align-items:center; gap:10px; margin-left:auto; }
.nav + .topbar-act{ margin-left:0; }
.menuBtn{ display:none; flex-direction:column; gap:4px; }
.menuBar{ display:block; width:17px; height:2px; border-radius:2px; background:currentColor; transition:.3s var(--ease); }
.menuBtn[aria-expanded="true"] .menuBar:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.menuBtn[aria-expanded="true"] .menuBar:nth-child(2){ opacity:0; }
.menuBtn[aria-expanded="true"] .menuBar:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ============================== 06 Hero ============================== */
.hero{ position:relative; padding:clamp(120px,17vh,190px) 0 clamp(52px,8vh,90px); }
.heroGrid{ display:grid; grid-template-columns:1.06fr .94fr; gap:clamp(26px,4vw,54px); align-items:center; }
.badge{
  display:inline-flex; align-items:center; gap:.55em; margin:0 0 22px;
  padding:.42em .9em .42em .7em; border-radius:999px;
  border:1px solid var(--line); background:var(--glass); backdrop-filter:blur(8px);
  font-size:.82rem; font-weight:600; color:var(--ink-2);
}
.badge .dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 70%, transparent); animation:pulse 2.4s infinite; }
@keyframes pulse{ 0%{ box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 65%, transparent); } 70%{ box-shadow:0 0 0 9px transparent; } 100%{ box-shadow:0 0 0 0 transparent; } }
.heroSub{ font-size:clamp(1rem,1.5vw,1.1rem); max-width:34em; margin:22px 0 30px; }
.heroSub .sep{ color:var(--accent); }
.heroBtns{ display:flex; flex-wrap:wrap; gap:12px; }
.heroStats{ display:flex; flex-wrap:wrap; gap:clamp(18px,4vw,44px); margin:38px 0 0; padding:26px 0 0; border-top:1px solid var(--line); }
.heroStats div{ margin:0; }
.heroStats dt{ font-size:.78rem; color:var(--ink-3); letter-spacing:.05em; }
.heroStats dd{ margin:4px 0 0; display:flex; align-items:baseline; gap:2px; }
.heroStats b{ font:700 clamp(1.5rem,3.2vw,2rem)/1 var(--mono); letter-spacing:-.02em;
  background:linear-gradient(100deg,var(--accent),var(--accent-2)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.heroStats i{ color:var(--ink-3); font-style:normal; font-weight:700; }

.heroCard{ perspective:1000px; }
.heroCard .glass{ padding:0; }
.codeHead{ display:flex; align-items:center; gap:7px; padding:14px 18px; border-bottom:1px solid var(--line); background:rgba(255,255,255,.03); }
/* 代码窗口右上角的三个窗口按钮。
   注意：早期版本这里叫 .tl，与下方时间线的 <ol class="tl"> 撞名，
   导致时间线列表被按 11×11 圆点布局（卡片被压成 62px 竖条）。已改名 winDot。 */
.winDot{ width:11px; height:11px; border-radius:50%; display:block; }
.winDot.d1{ background:#ff5f57; }
.winDot.d2{ background:#febc2e; }
.winDot.d3{ background:#28c840; }
.codeName{ margin-left:8px; font:.78rem/1 var(--mono); color:var(--ink-3); }
.code{ margin:0; padding:22px 20px; overflow-x:auto; font:.86rem/1.75 var(--mono); color:var(--ink-2); }
.code code{ font:inherit; white-space:pre; }
.code .c1{ color:var(--accent-2); } .code .c2{ color:var(--accent); }
.code .c3{ color:#ffd9a0; } .code .c4{ color:var(--ink-3); font-style:italic; }
.codeFoot{ display:flex; flex-wrap:wrap; gap:.5rem; padding:0 20px 20px; }

.scrollHint{
  display:flex; flex-direction:column; align-items:center; gap:9px;
  margin:clamp(40px,7vh,72px) auto 0; width:max-content;
  font-size:.76rem; letter-spacing:.16em; color:var(--ink-3); text-transform:uppercase;
}
.mouse{ width:22px; height:34px; border:1.6px solid var(--line-2); border-radius:12px; display:grid; justify-items:center; padding-top:6px; }
.wheel{ width:3px; height:7px; border-radius:2px; background:var(--accent); animation:wheel 1.9s var(--ease) infinite; }
@keyframes wheel{ 0%{ transform:translateY(0); opacity:0; } 25%{ opacity:1; } 100%{ transform:translateY(11px); opacity:0; } }

/* ============================== 07 通用区块 ============================== */
.sec{ padding:var(--secGap) 0; position:relative; }
.secHead{ max-width:62ch; margin-bottom:clamp(30px,4.5vw,52px); }
.kicker{
  font:.78rem/1 var(--mono); letter-spacing:.22em; text-transform:uppercase;
  color:var(--accent); margin:0 0 14px;
}
.secHead h2{ margin-bottom:14px; }
.secDesc{ font-size:1rem; color:var(--ink-3); margin:0; }

/* ============================== 08 关于 ============================== */
.aboutGrid{ display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(18px,2.4vw,26px); align-items:start; }
.aboutGrid p{ font-size:1.02rem; }
.facts{ list-style:none; margin:26px 0 0; padding:22px 0 0; border-top:1px solid var(--line);
  display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:16px 22px; }
.facts li{ display:flex; flex-direction:column; gap:3px; }
.facts span{ font-size:.76rem; color:var(--ink-3); letter-spacing:.05em; }
.facts b{ font-size:.98rem; }
.dlRow{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.tlMini{ display:flex; flex-direction:column; gap:20px; }
.tlMiniRow{ display:grid; grid-template-columns:64px 1fr; gap:16px; align-items:start; }
.tlMiniY{ font:.76rem/1.9 var(--mono); color:var(--accent); letter-spacing:.04em; }
.tlMiniRow p{ margin:0; font-size:.95rem; }
.tlMiniRow b{ display:inline-block; margin-bottom:3px; }

/* ============================== 09 技能 ============================== */
.skillGrid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(258px,1fr)); gap:clamp(16px,2vw,22px); }
.card{ display:flex; flex-direction:column; }
.cardIcon{
  display:grid; place-items:center; width:44px; height:44px; border-radius:13px; margin-bottom:18px;
  color:var(--accent); border:1px solid var(--line);
  background:linear-gradient(150deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
}
.card h3{ margin-bottom:8px; }
.card p{ font-size:.93rem; }
.skills{ list-style:none; margin:20px 0 0; padding:0; display:flex; flex-direction:column; gap:14px; }
.skillTop{ display:flex; justify-content:space-between; align-items:baseline; gap:10px; margin-bottom:7px; }
.skillTop b{ font-size:.88rem; font-weight:600; }
.skillTop i{ font-style:normal; font-size:.74rem; color:var(--ink-3); }
.bar{ display:block; height:6px; border-radius:99px; background:rgba(255,255,255,.07); overflow:hidden; }
.fill{
  display:block; height:100%; width:0; border-radius:99px;
  background:linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow:0 0 12px color-mix(in srgb, var(--accent) 55%, transparent);
  transition:width 1.1s var(--ease);
}
.skill.is-on .fill{ width:var(--w, 0%); }
.chips{ list-style:none; display:flex; flex-wrap:wrap; gap:.5rem; margin:clamp(26px,4vw,38px) 0 0; padding:0; }
.chips li{
  padding:.42em .9em; border-radius:999px; font-size:.82rem; font-weight:600; color:var(--ink-2);
  border:1px solid var(--line); background:var(--glass); transition:.3s var(--ease);
}
.chips li:hover{ color:var(--accent); border-color:var(--accent); transform:translateY(-2px); }

/* ============================== 10 作品 ============================== */
.filter{ display:flex; flex-wrap:wrap; gap:.5rem; margin-bottom:clamp(20px,3vw,30px); }
.chip{
  padding:.5em 1.05em; border-radius:999px; cursor:pointer;
  border:1px solid var(--line); background:var(--glass); color:var(--ink-2);
  font:600 .86rem/1 var(--font); transition:.3s var(--ease);
}
.chip:hover{ color:var(--ink); border-color:var(--line-2); transform:translateY(-2px); }
.chip.is-on{
  color:var(--accentInk); border-color:transparent;
  background:linear-gradient(100deg,var(--accent),var(--accent-2)); box-shadow:var(--glow);
}
.workGrid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(288px,1fr)); gap:clamp(16px,2vw,24px); }
.workCard{ display:flex; flex-direction:column; }
.workCard.is-hidden{ display:none; }
.workCard.is-out{ opacity:0; transform:translateY(10px) scale(.98); }
.thumb{
  position:relative; aspect-ratio:16/10; overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(120% 120% at 20% 15%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 60%),
    radial-gradient(100% 100% at 82% 78%, color-mix(in srgb, var(--accent-2) 38%, transparent), transparent 58%),
    linear-gradient(150deg, #0b0e1c, #05060c);
}
.thumb[data-hue="2"]{ background:
    radial-gradient(120% 120% at 78% 12%, color-mix(in srgb, var(--accent-3) 34%, transparent), transparent 60%),
    radial-gradient(100% 100% at 18% 80%, color-mix(in srgb, var(--accent) 32%, transparent), transparent 58%),
    linear-gradient(150deg, #0b0e1c, #05060c); }
.thumb[data-hue="3"]{ background:
    radial-gradient(130% 130% at 50% 110%, color-mix(in srgb, var(--accent-2) 44%, transparent), transparent 62%),
    radial-gradient(90% 90% at 15% 10%, color-mix(in srgb, var(--accent-3) 26%, transparent), transparent 60%),
    linear-gradient(150deg, #0b0e1c, #05060c); }
.thumbFx{
  position:absolute; inset:0; opacity:.55;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:26px 26px;
  mask-image:radial-gradient(80% 80% at 50% 50%, #000, transparent 78%);
  -webkit-mask-image:radial-gradient(80% 80% at 50% 50%, #000, transparent 78%);
  transition:transform .6s var(--ease);
}
.workCard:hover .thumbFx{ transform:scale(1.08); }
.thumbTag{
  position:absolute; left:14px; bottom:14px; z-index:1;
  font:.72rem/1 var(--mono); letter-spacing:.06em; color:var(--ink);
  padding:.42em .7em; border-radius:8px; background:rgba(0,0,0,.42);
  border:1px solid var(--line-2); backdrop-filter:blur(6px);
}
.workBody{ padding:20px 22px 24px; display:flex; flex-direction:column; flex:1; }
.workTop{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; }
.workTop h3{ font-size:1.06rem; }
.workBody p{ margin:10px 0 0; font-size:.93rem; }
.workLinks{ margin-top:auto; padding-top:20px; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
/* 作品标题可点：整张卡的主链接（试玩 / 详情） */
.workTitle{ color:inherit; transition:color .3s var(--ease); }
.workTitle:hover{ color:var(--accent); }
.workEmpty{ grid-column:1/-1; color:var(--ink-3); font-size:.95rem; padding:26px 0; }

/* ============================== 11 时间线 ============================== */
.tl{ list-style:none; margin:0; padding:0; position:relative; }
.tl::before{
  content:""; position:absolute; left:7px; top:8px; bottom:8px; width:2px; border-radius:2px;
  background:linear-gradient(180deg, var(--accent), var(--accent-2), transparent);
  opacity:.55;
}
.tlItem{ position:relative; padding:0 0 clamp(20px,3vw,30px) 40px; }
.tlItem:last-child{ padding-bottom:0; }
.tlDot{
  position:absolute; left:0; top:22px; width:16px; height:16px; border-radius:50%;
  background:var(--bg); border:2px solid var(--accent);
  box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent), 0 0 18px color-mix(in srgb, var(--accent) 60%, transparent);
}
.tlBody{ padding:22px 24px 24px; }
.tlTop{ display:flex; align-items:baseline; justify-content:space-between; gap:14px; flex-wrap:wrap; }
.tlTop h3{ font-size:1.04rem; }
.tlAt{ color:var(--accent); font-weight:600; font-size:.92rem; }
.tlBody p{ margin:10px 0 0; font-size:.94rem; }

/* ============================== 12 手记 ============================== */
.blogGrid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(272px,1fr)); gap:clamp(16px,2vw,22px); }
.blogCard{ display:flex; flex-direction:column; }
.blogMeta{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.blogCard h3{ font-size:1.04rem; margin-bottom:10px; }
.blogCard p{ font-size:.93rem; }
.blogCard .linkArrow{ margin-top:auto; padding-top:18px; }

/* ============================== 13 联系与表单 ============================== */
.contactGrid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(18px,2.4vw,26px); align-items:start; }
.contactList{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; }
.contactList li{
  display:grid; grid-template-columns:38px 1fr auto; align-items:center; gap:12px;
  padding:15px 0; border-bottom:1px dashed var(--line);
}
.contactList li:last-child{ border-bottom:0; }
.cIcon{
  display:grid; place-items:center; width:38px; height:38px; border-radius:11px;
  color:var(--accent); border:1px solid var(--line); background:var(--glass);
}
.cLabel{ font-size:.86rem; color:var(--ink-3); }
.cVal{ font-weight:600; font-size:.95rem; }
.copyable{ cursor:pointer; border-bottom:1px dashed var(--line-2); transition:.3s var(--ease); }
.copyable:hover{ color:var(--accent); border-bottom-color:var(--accent); }
.hint{ margin:18px 0 0; font-size:.8rem; color:var(--ink-3); }

.form{ display:flex; flex-direction:column; }
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:16px; }
.field > span{ font-size:.82rem; color:var(--ink-3); font-weight:600; letter-spacing:.03em; }
.field input,.field textarea{
  width:100%; padding:12px 14px; border-radius:12px; resize:vertical;
  border:1px solid var(--line); background:rgba(0,0,0,.28); color:var(--ink);
  font:inherit; font-size:.94rem; transition:.3s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{ color:color-mix(in srgb, var(--ink-3) 80%, transparent); }
.field input:focus,.field textarea:focus{
  outline:none; border-color:var(--accent); background:rgba(0,0,0,.42);
  box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent);
}
.field.is-bad input,.field.is-bad textarea{ border-color:#ff6b6b; }
.formRow{ display:flex; flex-wrap:wrap; gap:10px; margin-top:4px; }
.formMsg{ margin:12px 0 0; font-size:.86rem; min-height:1.4em; color:var(--accent); }
.formMsg.is-bad{ color:#ff8a8a; }
.msgList{ list-style:none; margin:16px 0 0; padding:0; display:flex; flex-direction:column; gap:10px; max-height:220px; overflow:auto; }
.msgList li{
  padding:12px 14px; border-radius:12px; border:1px solid var(--line);
  background:rgba(255,255,255,.03); font-size:.88rem;
}
.msgList .msgWho{ display:flex; justify-content:space-between; gap:10px; margin-bottom:5px; }
.msgList .msgWho b{ font-size:.86rem; }
.msgList .msgWho time{ font:.72rem/1.7 var(--mono); color:var(--ink-3); }
.msgList .msgBody{ color:var(--ink-2); overflow-wrap:anywhere; }

/* ============================== 14 页脚 / 回到顶部 / Toast ============================== */
.footer{ margin-top:clamp(50px,8vw,90px); padding:clamp(30px,5vw,48px) 0; border-top:1px solid var(--line); background:color-mix(in srgb, var(--bg-2) 60%, transparent); }
.footerIn{ display:flex; align-items:flex-start; justify-content:space-between; gap:26px; flex-wrap:wrap; }
.footNote{ margin:16px 0 0; font-size:.84rem; color:var(--ink-3); max-width:44ch; }
.footLinks{ display:flex; flex-wrap:wrap; gap:6px; }
.footLinks a{ padding:.4em .8em; border-radius:999px; font-size:.88rem; color:var(--ink-2); transition:.3s var(--ease); }
.footLinks a:hover{ color:var(--accent); background:var(--glass); }

.toTop{
  position:fixed; right:clamp(16px,3vw,28px); bottom:clamp(16px,3vw,28px); z-index:45;
  width:46px; height:46px; display:grid; place-items:center; cursor:pointer;
  border-radius:50%; color:var(--accentInk); border:0;
  background:linear-gradient(135deg,var(--accent),var(--accent-2)); box-shadow:var(--glow);
  opacity:0; visibility:hidden; transform:translateY(14px) scale(.9);
  transition:.4s var(--ease);
}
.toTop.is-on{ opacity:1; visibility:visible; transform:none; }
.toTop:hover{ transform:translateY(-3px); box-shadow:var(--glow), var(--glow-2); }

.toast{
  position:fixed; left:50%; bottom:32px; z-index:70; translate:-50% 20px;
  padding:.7em 1.15em; border-radius:999px; font-size:.88rem; font-weight:600;
  color:var(--ink); background:color-mix(in srgb, var(--bg-2) 88%, transparent);
  border:1px solid var(--line-2); box-shadow:var(--shadow); backdrop-filter:blur(12px);
  opacity:0; visibility:hidden; transition:.35s var(--ease); pointer-events:none;
}
.toast.is-on{ opacity:1; visibility:visible; translate:-50% 0; }

/* ============================== 15 内页 ============================== */
.pageHead{ padding:clamp(110px,15vh,160px) 0 clamp(24px,4vw,40px); }
.crumb{ display:flex; align-items:center; gap:.5em; font-size:.84rem; color:var(--ink-3); margin-bottom:20px; }
.crumb a{ color:var(--ink-2); }
.crumb a:hover{ color:var(--accent); }
.pageHead h1{ font-size:clamp(2rem,5.4vw,3.2rem); margin-bottom:16px; }
.pageHead .lead{ font-size:1.05rem; max-width:60ch; }
.metaRow{ display:flex; flex-wrap:wrap; gap:.6rem 1.1rem; margin-top:22px; font-size:.86rem; color:var(--ink-3); }
.pageGrid{ display:grid; grid-template-columns:minmax(0,1fr) 290px; gap:clamp(22px,3vw,40px); align-items:start; padding-bottom:var(--secGap); }
.prose{ font-size:1.02rem; }
.prose h2{ font-size:1.42rem; margin:44px 0 14px; }
.prose h3{ font-size:1.1rem; margin:30px 0 10px; }
.prose p{ margin:0 0 1.15em; }
.prose ul{ padding-left:1.25em; color:var(--ink-2); margin:0 0 1.2em; }
.prose li{ margin-bottom:.45em; }
.prose code{ font:.88em/1 var(--mono); padding:.16em .45em; border-radius:6px; background:rgba(255,255,255,.07); border:1px solid var(--line); color:#ffd9a0; }
.prose pre{
  margin:0 0 1.3em; padding:18px 20px; border-radius:14px; overflow-x:auto;
  background:rgba(0,0,0,.42); border:1px solid var(--line); font:.86rem/1.7 var(--mono); color:var(--ink-2);
}
.prose pre code{ background:none; border:0; padding:0; color:inherit; font-size:inherit; }
.prose blockquote{
  margin:0 0 1.3em; padding:6px 0 6px 18px; border-left:2px solid var(--accent);
  color:var(--ink-2); font-style:italic;
}
.prose figure{ margin:0 0 1.4em; }
.prose figcaption{ margin-top:10px; font-size:.82rem; color:var(--ink-3); }
.hero-img{
  aspect-ratio:16/9; border-radius:var(--r-lg); border:1px solid var(--line); margin-bottom:34px;
  background:
    radial-gradient(120% 120% at 22% 18%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 60%),
    radial-gradient(100% 100% at 80% 76%, color-mix(in srgb, var(--accent-2) 38%, transparent), transparent 58%),
    linear-gradient(150deg,#0b0e1c,#05060c);
  display:grid; place-items:center; color:var(--ink-3); font:.8rem/1 var(--mono); letter-spacing:.16em;
}
.specs{ list-style:none; margin:0 0 18px; padding:0; display:flex; flex-direction:column; gap:12px; }
.specs li{ display:flex; justify-content:space-between; gap:12px; font-size:.9rem; padding-bottom:11px; border-bottom:1px dashed var(--line); }
.specs span{ color:var(--ink-3); }
.specs b{ text-align:right; }
.toc{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:9px; }
.toc a{ font-size:.9rem; color:var(--ink-2); }
.toc a:hover{ color:var(--accent); }
.stick{ position:sticky; top:96px; }
.pageNav{ display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; padding-top:30px; border-top:1px solid var(--line); }

/* ============================== 16 响应式 ============================== */
@media (max-width:1040px){
  .heroGrid{ grid-template-columns:1fr; }
  .heroCard{ order:-1; }
  .aboutGrid,.contactGrid{ grid-template-columns:1fr; }
  .pageGrid{ grid-template-columns:1fr; }
  .pageGrid .stick{ position:static; }
}
@media (max-width:820px){
  .nav{
    position:fixed; inset:70px 0 auto 0; margin:0; flex-direction:column; align-items:stretch; gap:2px;
    padding:14px var(--pad) 22px;
    background:color-mix(in srgb, var(--bg) 94%, transparent);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
    transform:translateY(-12px); opacity:0; visibility:hidden; pointer-events:none;
    transition:.34s var(--ease);
  }
  .nav.is-open{ transform:none; opacity:1; visibility:visible; pointer-events:auto; }
  .nav a{ padding:.85em 1em; border-radius:12px; font-size:1rem; }
  .menuBtn{ display:flex; }
  .topbar-act{ margin-left:0; }
  .brand{ margin-right:auto; }
}
@media (max-width:640px){
  html{ scroll-padding-top:78px; }
  .topbar-in{ height:62px; }
  .nav{ inset:62px 0 auto 0; }
  .hideSm{ display:none; }
  .hero{ padding-top:clamp(104px,16vh,150px); }
  .heroStats{ gap:18px 30px; }
  .tlItem{ padding-left:32px; }
  .tlDot{ width:13px; height:13px; }
  .contactList li{ grid-template-columns:34px 1fr; row-gap:4px; }
  .contactList .cVal{ grid-column:2; }
  .code{ font-size:.78rem; }
  .toTop{ width:42px; height:42px; }
}
@media (max-width:400px){
  body{ font-size:15.5px; }
  .brandText{ display:none; }
}

/* ============================== 17 无障碍与降级 ============================== */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
  .fill{ width:var(--w,0%) !important; }
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass,.btnGhost,.topbar.is-stuck,.nav{ background:color-mix(in srgb, var(--bg-2) 94%, transparent); }
}
@media print{
  .topbar,.bgfx,.toTop,.progress,.scrollHint,.toast,.filter{ display:none !important; }
  body{ background:#fff; color:#111; }
  .glass{ border-color:#ddd; box-shadow:none; background:#fff; }
  .reveal{ opacity:1 !important; transform:none !important; }
}