/* =====================================================
   井思诺 Snow® — 个人网站
   设计基因：纸面网格 + 墨色大字 + 荧光笔标记 + 等宽注脚
   ===================================================== */

:root {
  --bg: #fbfaf6;
  --ink: #1a1a1a;
  --t2: #555550;
  --t3: #9b9a92;
  --line: #e7e5da;
  --hl: #ffde66;          /* 荧光笔黄 */
  --hl-soft: #fff3c4;
  --accent: #ff5c38;      /* 我的橙红点缀 */
  --cream: #f6f0dc;
  --ease: cubic-bezier(.19, 1, .22, 1);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --pad: clamp(20px, 6vw, 96px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--hl); color: var(--ink); }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.mono { font-family: var(--mono); }
.dim { color: var(--t3); }

/* ---------- 背景纸面 ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(26,26,26,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,26,26,.035) 1px, transparent 1px);
  background-size: 32px 32px;
}
.bg-dots {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: radial-gradient(rgba(26,26,26,.10) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .35;
  mask-image: radial-gradient(ellipse at 70% 20%, transparent 30%, #000 80%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 20%, transparent 30%, #000 80%);
}

main { position: relative; z-index: 1; }

/* ---------- 载入进度条 ---------- */
.loader {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 99;
  background: transparent; pointer-events: none;
}
.loader i {
  display: block; height: 100%; background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  animation: loader 1s var(--ease) .1s forwards;
}
@keyframes loader { 0% { transform: scaleX(0); } 40% { transform: scaleX(.6); } 100% { transform: scaleX(1); } }
.loader.done { opacity: 0; transition: opacity .5s; }

/* ---------- 左侧阅读进度 ---------- */
.progress {
  position: fixed; top: 50%; left: 28px; transform: translateY(-50%);
  width: 2px; height: 120px; border-radius: 2px; background: var(--line);
  z-index: 10;
}
.progress i {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: var(--ink); border-radius: 2px;
  transform: scaleY(0); transform-origin: top;
}
.progress span {
  position: absolute; left: 11px; bottom: -3px; transform: translateY(100%);
  font: 500 10px/1 var(--mono); letter-spacing: .08em; color: var(--t3);
}

/* ---------- 自定义光标 ---------- */
.cursor-dot {
  position: fixed; top: 0; left: 0; width: 14px; height: 14px;
  border-radius: 50%; background: var(--hl);
  border: 1.5px solid rgba(26,26,26,.55);
  pointer-events: none; z-index: 98;
  transform: translate(-50%, -50%);
  transition: width .25s var(--ease), height .25s var(--ease), opacity .3s;
  opacity: 0;
}
.cursor-dot.on { opacity: .9; }
.cursor-dot.grow { width: 34px; height: 34px; background: transparent; border-color: var(--accent); }
@media (hover: none) { .cursor-dot { display: none; } }

/* ---------- 顶栏 ---------- */
.site-head {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 26px var(--pad);
}
.site-head::before {
  content: ""; position: absolute; inset: -1px 0 0; z-index: -1;
  background: linear-gradient(to bottom, rgba(251,250,246,.95) 35%, rgba(251,250,246,0));
  pointer-events: none;
}
.logo { font-weight: 800; font-size: 17px; letter-spacing: -.02em; }
.logo sup { font-size: .5em; font-weight: 400; margin-left: 1px; }
.site-nav { display: flex; gap: 28px; align-items: baseline; font-size: 14px; }
.site-nav a { position: relative; color: var(--t2); transition: color .2s; }
.site-nav a:hover { color: var(--ink); }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 2px;
  background: var(--hl); transition: right .35s var(--ease);
}
.site-nav a:hover::after { right: 0; }
.site-nav a.active { color: var(--ink); }
.site-nav a.active::after { right: 0; }
.site-nav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.nav-ext { font-family: var(--mono); font-size: 12.5px; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px var(--pad) 60px;
  max-width: 1280px; margin: 0 auto;
}
.hero h1 {
  font-size: clamp(60px, 10.5vw, 148px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.045em;
  position: relative; z-index: 2;
}
.hero h1 .tick { color: var(--accent); font-style: normal; font-weight: 400; }
.lmask { display: block; overflow: hidden; }
.lmask > span {
  display: block; transform: translateY(112%);
  animation: lineup 1.15s var(--ease) forwards;
}
.lmask:nth-child(1) > span { animation-delay: .15s; }
.lmask:nth-child(2) > span { animation-delay: .3s; }
.lmask:nth-child(3) > span { animation-delay: .45s; }
@keyframes lineup { to { transform: translateY(0); } }

/* 荧光笔扫过 */
.hl-word { font-style: normal; position: relative; white-space: nowrap; }
.hl-word::before {
  content: ""; position: absolute; z-index: -1;
  left: -0.06em; right: -0.06em; bottom: .04em; height: .38em;
  background: var(--hl);
  transform: scaleX(0); transform-origin: left;
  animation: sweep .7s var(--ease) 1.15s forwards;
}
@keyframes sweep { to { transform: scaleX(1); } }

/* 机器人插画 */
.hero-bot {
  position: absolute; z-index: 3;
  right: clamp(0px, 8vw, 140px); bottom: 16vh;
  width: clamp(180px, 24vw, 330px);
  opacity: 0;
  animation: bot-in 1.4s var(--ease) .5s forwards;
  pointer-events: none;
}
.bot-svg { width: 100%; overflow: visible; pointer-events: auto; cursor: pointer; transform: rotate(var(--tilt, 0deg)); }
@keyframes bot-in {
  from { opacity: 0; clip-path: inset(100% 0 0); transform: translateY(6%); }
  to   { opacity: 1; clip-path: inset(-10% 0 0); transform: translateY(0); }
}
.bot-bubble {
  position: absolute; top: -14px; left: 50%;
  transform: translate(-50%, 8px);
  background: var(--ink); color: var(--bg);
  font-size: 12.5px; padding: 8px 14px; border-radius: 10px;
  white-space: nowrap; opacity: 0;
  transition: opacity .35s var(--ease), transform .35s var(--ease);
  pointer-events: none; z-index: 3;
}
.bot-bubble::after {
  content: ""; position: absolute; left: 50%; bottom: -5px;
  width: 10px; height: 10px; background: var(--ink);
  transform: translateX(-50%) rotate(45deg);
}
.bot-bubble.show { opacity: 1; transform: translate(-50%, 0); }
.bot-float { animation: botfloat 5.2s ease-in-out infinite; }
@keyframes botfloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.bot-svg line, .bot-svg ellipse, .bot-svg rect, .bot-svg circle, .bot-svg path {
  fill: #fff; stroke: var(--ink); stroke-width: 3; stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
/* 雪人细节上色 */
.bot-svg .shade { fill: none; stroke: #d9d6c8; }
.bot-svg .pupil { fill: var(--ink); stroke: none; }
.bot-svg .pupil { transform: translate(var(--eye-x, 0px), var(--eye-y, 0px)); }
.bot-svg .eyes {
  transform-box: fill-box; transform-origin: center;
  animation: blink 4.6s infinite;
}
@keyframes blink {
  0%, 93%, 100% { transform: scaleY(1); }
  95.5% { transform: scaleY(0.06); }
  98% { transform: scaleY(1); }
}
.bot-svg .blush { fill: #ffc9b8; stroke: none; opacity: .85; }
.bot-svg .smile, .bot-svg .twig, .bot-svg .fringe { fill: none; }
.bot-svg .fringe { stroke-width: 2.5; }
.bot-svg .scarf-piece { fill: var(--hl); }
.bot-svg .nose { fill: var(--accent); stroke-width: 2.5; }
.bot-svg .btn-dot { fill: var(--ink); stroke: none; }
.bot-svg .hat-piece { fill: var(--ink); }
.bot-svg .hat-band { fill: var(--hl); stroke-width: 2; }
.bot-svg .shadow-ellipse { fill: rgba(26,26,26,.08); stroke: none; }
/* 右手打招呼 */
.bot-svg .wave {
  transform-box: fill-box; transform-origin: 10% 100%;
  animation: wave-hand 3.2s ease-in-out infinite;
}
@keyframes wave-hand {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-14deg); }
}
/* 飘落的小雪花 */
.bot-svg .flake {
  fill: none; stroke-width: 2; opacity: 0;
  animation: flakefall 5.5s linear infinite;
}
.bot-svg .f2 { animation-delay: 1.4s; animation-duration: 6.5s; }
.bot-svg .f3 { animation-delay: 2.8s; animation-duration: 7s; }
.bot-svg .f4 { animation-delay: 4s; animation-duration: 6s; }
@keyframes flakefall {
  0% { transform: translateY(-14px); opacity: 0; }
  25% { opacity: .45; }
  75% { opacity: .35; }
  100% { transform: translateY(52px); opacity: 0; }
}

.hero-sub {
  display: flex; align-items: baseline; gap: 22px; flex-wrap: wrap;
  margin-top: 44px; position: relative; z-index: 2;
}
.hero-sub b { font-size: 22px; letter-spacing: .02em; }
.hero-sub .mono { font-size: 13px; letter-spacing: .14em; }

.hero-arrow {
  position: absolute; left: var(--pad); bottom: 5vh;
  font-size: 12px; letter-spacing: .28em;
  animation: fadeup 1.2s var(--ease) 1.7s both;
}
@keyframes fadeup { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 通用区块 ---------- */
.sec {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(90px, 14vh, 160px) var(--pad);
}
.sec-watermark {
  position: absolute; top: 40px; right: var(--pad);
  font-size: clamp(160px, 24vw, 320px);
  font-weight: 800; line-height: 1; letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(26,26,26,.10);
  pointer-events: none; user-select: none;
  z-index: 0;
}
.sec-head { position: relative; z-index: 1; margin-bottom: clamp(40px, 7vh, 72px); }
.sec-label {
  display: inline-block;
  font-size: 12px; letter-spacing: .3em; color: var(--t3);
  margin-bottom: 18px;
}
.sec-head h2 {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 800; letter-spacing: -.035em; line-height: 1.08;
}
.sec-head h2 .hl-word::before { animation: none; transform: scaleX(1); height: .34em; bottom: .06em; }
.sec-note { display: block; margin-top: 14px; font-size: 12px; letter-spacing: .18em; }

/* 滚动揭示（--i 控制错峰延迟） */
.rev {
  opacity: 0; transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: calc(var(--i, 0) * 100ms);
}
.rev.in { opacity: 1; transform: translateY(0); }

/* ---------- 跑马灯分隔带 ---------- */
.marquee {
  position: relative; z-index: 1;
  overflow: hidden;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.55);
  padding: 14px 0;
}
.marquee-track {
  display: flex; width: max-content;
  animation: marquee 26s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--mono);
  font-size: 13px; letter-spacing: .22em;
  color: var(--t3); white-space: nowrap;
}
.marquee-track span i { font-style: normal; color: var(--accent); margin: 0 14px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 荧光笔文字标记（正文用） */
.hl {
  background-image: linear-gradient(transparent 58%, var(--hl) 58%);
  background-repeat: no-repeat; background-size: 100% 100%;
  padding: 0 .1em;
}

/* ---------- 01 产品 · 大幅展示 ---------- */
.works { position: relative; z-index: 1; border-top: 1px solid var(--line); }
.work { border-bottom: 1px solid var(--line); padding: 52px 0 60px; }
.work-head {
  display: grid;
  grid-template-columns: 44px 60px 1fr auto;
  align-items: center; gap: 18px;
  padding: 0 6px 30px;
}
.w-num { font-size: 13px; color: var(--t3); letter-spacing: .1em; }
.w-icon {
  width: 54px; height: 54px; border-radius: 16px;
  display: grid; place-items: center; font-size: 25px;
  background: #fff; border: 1px solid var(--line);
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s;
  justify-self: start;
}
.work:hover .w-icon {
  background: var(--hl); transform: rotate(-6deg) scale(1.06);
  box-shadow: 3px 4px 0 rgba(26,26,26,.9);
}
.w-name {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800; letter-spacing: -.025em; position: relative;
  transition: transform .35s var(--ease);
}
.work:hover .w-name { transform: translateX(6px); }
.w-en { font-size: 13px; color: var(--t3); font-weight: 400; margin-left: 12px; letter-spacing: .08em; font-style: normal; font-family: var(--mono); }
.w-tag { font-size: 13.5px; letter-spacing: .04em; }
.work-inner {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px;
  padding: 0 6px 0 122px;
}
.work-inner > * { min-width: 0; }
.w-info p { color: var(--t2); max-width: 46ch; font-size: 16.5px; }

/* 大数字统计 */
.w-stats { display: flex; gap: 46px; margin: 24px 0 20px; }
.stat b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(34px, 3.4vw, 46px);
  font-weight: 700; letter-spacing: -.03em; line-height: 1.1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
}
.stat span {
  display: block; margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .18em; color: var(--t3);
}
.w-meta {
  list-style: none; display: flex; flex-wrap: wrap; gap: 8px;
  margin: 0 0 26px;
}
.w-meta li {
  font-size: 11.5px; letter-spacing: .05em;
  border: 1px solid var(--line); background: #fff;
  border-radius: 999px; padding: 5px 12px; color: var(--t2);
}
.w-links { display: flex; gap: 14px; align-items: center; }
.btn-line {
  display: inline-block;
  border: 1.5px solid var(--ink); border-radius: 999px;
  padding: 10px 24px; font-weight: 600; font-size: 15px;
  background: #fff;
  transition: all .25s var(--ease);
}
.btn-line:hover { background: var(--ink); color: var(--bg); box-shadow: 4px 4px 0 var(--hl); }
.btn-ghost { font-size: 13px; color: var(--t2); border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.btn-ghost:hover { color: var(--ink); border-color: var(--ink); }

/* 产品卡内的"小窗口" mock */
.w-mock {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 16px; align-self: start;
  box-shadow: 6px 6px 0 rgba(26,26,26,.06);
  transform: rotate(-1.2deg);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.work:hover .w-mock { transform: rotate(0deg) translateY(-4px); box-shadow: 10px 12px 0 rgba(26,26,26,.08); }
.mock-bar {
  display: flex; align-items: center; gap: 6px;
  padding-bottom: 10px; margin-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.mock-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.mock-bar i:first-child { background: #ff8f80; }
.mock-bar i:nth-child(2) { background: #ffd264; }
.mock-bar i:nth-child(3) { background: #8fd694; }
.mock-bar span { margin-left: auto; font-size: 10px; color: var(--t3); letter-spacing: .08em; }
.mock-line { height: 10px; border-radius: 5px; background: #efede4; margin-bottom: 9px; }
.mock-line.w80 { width: 80%; } .mock-line.w60 { width: 60%; }
.mock-line.w72 { width: 72%; } .mock-line.w45 { width: 45%; }
.mock-line.w55 { width: 55%; }
.mock-line.hl-sweep { background: var(--hl-soft); }

/* AdPilot 流水线 mock */
.mock-flow { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.mf-step {
  font-size: 11px; letter-spacing: .04em;
  border: 1.5px solid var(--ink); border-radius: 8px;
  padding: 5px 9px; background: #fff;
}
.mf-step.done { background: var(--hl); }
.mf-step.fixing { border-color: var(--accent); color: var(--accent); background: #fff; }
.mf-arrow { color: var(--t3); font-size: 12px; }
.mock-rec {
  display: flex; align-items: center; gap: 8px;
  border: 1px dashed var(--line); border-radius: 10px;
  padding: 8px 12px; margin-bottom: 12px;
}
.mock-rec span { font-size: 11px; color: var(--t2); letter-spacing: .06em; }
.mock-rec .mock-pct { margin-left: auto; color: var(--ink); font-weight: 600; }
.rec-dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--accent);
  animation: rec-blink 1.2s infinite;
}
@keyframes rec-blink { 0%,100% { opacity: 1; } 50% { opacity: .25; } }

/* 卡片内三视图切换：流水线 / 截图 / 实时预览 */
.mock-tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.mock-tab {
  font-size: 11px; letter-spacing: .05em; color: var(--t2);
  border: 1.5px solid var(--line); border-radius: 999px;
  padding: 4px 12px; background: #fff;
  transition: all .2s var(--ease);
}
.mock-tab:hover { border-color: var(--ink); color: var(--ink); }
.mock-tab.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.mock-panel { display: none; }
.mock-panel.active { display: block; }
.mock-live {
  position: relative; height: 230px; overflow: hidden;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg);
}
.mock-live iframe {
  width: 1440px; height: 900px; border: 0;
  transform: scale(.24); transform-origin: 0 0;
  pointer-events: auto;
}
.live-loading {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 12px; color: var(--t3); letter-spacing: .1em;
}
.live-open { display: inline-block; margin-top: 10px; font-size: 12px; }

/* 放大按钮 + 大浮窗 */
.mock-bar { cursor: pointer; }
.mock-expand {
  font-size: 10.5px; letter-spacing: .05em; color: var(--t2);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 3px 10px; background: #fff;
  transition: all .2s var(--ease);
}
.mock-expand:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.mock-modal { position: fixed; inset: 0; z-index: 96; display: grid; place-items: center; padding: 3vh 3vw; }
.mock-modal[hidden] { display: none; }
.mock-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(26, 26, 26, .55);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.mock-modal-box {
  position: relative; width: min(1160px, 100%);
  background: #fff; border: 1.5px solid var(--ink); border-radius: 18px;
  box-shadow: 12px 14px 0 rgba(26, 26, 26, .22); overflow: hidden;
  animation: modalin .5s var(--ease);
}
@keyframes modalin { from { opacity: 0; transform: translateY(28px) scale(.965); } }
.mock-modal-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 16px; border-bottom: 1px solid var(--line);
}
.mock-modal-dots { display: flex; gap: 6px; }
.mock-modal-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.mock-modal-dots i:first-child { background: #ff8f80; }
.mock-modal-dots i:nth-child(2) { background: #ffd264; }
.mock-modal-dots i:nth-child(3) { background: #8fd694; }
.mock-modal-title { font-size: 12px; color: var(--t2); letter-spacing: .08em; }
.mock-modal-ext { margin-left: auto; font-size: 12px; color: var(--t2); }
.mock-modal-ext:hover { color: var(--ink); }
.mock-modal-close {
  width: 30px; height: 30px; border-radius: 50%;
  border: 1.5px solid var(--line); background: #fff;
  font-size: 13px; line-height: 1; cursor: pointer;
  transition: all .2s var(--ease);
}
.mock-modal-close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.mock-modal-stage {
  position: relative; height: 480px; overflow: hidden; background: var(--bg);
}
.mock-modal-stage iframe {
  width: 1440px; border: 0; transform-origin: 0 0; pointer-events: auto;
}
.mock-modal-stage .live-loading {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 12px; color: var(--t3); letter-spacing: .1em;
}
.mock-wave { display: flex; align-items: flex-end; gap: 4px; height: 38px; margin-bottom: 14px; }
.mock-wave i {
  flex: 1; background: var(--hl); border-radius: 3px;
  animation: wave 1.1s ease-in-out infinite;
}
.mock-wave i:nth-child(odd) { animation-delay: .2s; background: #ffd264; }
@keyframes wave { 0%,100% { height: 30%; } 50% { height: 100%; } }

.mock-code { font-family: var(--mono); font-size: 12px; line-height: 2; }
.mc-line b { font-weight: 600; }
.mc-line .add { color: #2e7d43; }
.mc-line .del { color: #c9493d; }

.mock-score { display: flex; align-items: center; gap: 22px; }
.score-num {
  font-size: 52px; font-weight: 700;
  border: 2px solid var(--ink); border-radius: 18px;
  width: 96px; height: 96px; display: grid; place-items: center;
  background: var(--hl-soft); box-shadow: 4px 4px 0 rgba(26,26,26,.85);
}
.score-bars { flex: 1; }
.sb { margin-bottom: 10px; font-size: 11px; color: var(--t2); }
.sb span { display: inline-block; width: 44px; }
.sb i {
  display: inline-block; vertical-align: middle;
  width: calc(100% - 52px); height: 8px; border-radius: 4px;
  background: linear-gradient(90deg, var(--hl) var(--v), #efede4 var(--v));
}
.mock-grid9 {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.mock-grid9 i {
  font-style: normal; font-size: 24px;
  aspect-ratio: 1; display: grid; place-items: center;
  background: var(--cream); border-radius: 10px;
  transition: transform .25s var(--ease);
}
.mock-grid9 i:hover { transform: scale(1.15) rotate(-6deg); }

/* ---------- 02 经历 · changelog ---------- */
.changelog {
  list-style: none; position: relative; z-index: 1;
  border-left: 2px solid var(--line);
  margin-left: 8px;
  padding-left: 0;
}
.changelog li {
  position: relative;
  display: grid;
  grid-template-columns: 64px 150px 1fr;
  gap: 26px;
  padding: 30px 14px 34px 40px;
  transition: background .35s var(--ease);
}
.changelog li:hover { background: rgba(255, 222, 102, .12); }
.changelog li:hover::before { background: var(--hl); }
.changelog li:hover .cl-body { transform: translateX(6px); }
.cl-body { transition: transform .35s var(--ease); }
.changelog li::before {
  content: ""; position: absolute; left: -7px; top: 40px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg); border: 2.5px solid var(--ink);
}
.changelog li:first-child::before { background: var(--hl); }
.cl-hash { font-size: 12px; color: var(--accent); letter-spacing: .06em; padding-top: 6px; }
.cl-year { font-size: 12.5px; color: var(--t3); letter-spacing: .1em; padding-top: 6px; }
.cl-body h3 { font-size: 21px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 8px; }
.cl-body p { color: var(--t2); font-size: 15px; max-width: 60ch; }

/* ---------- 03 关于 ---------- */
.about-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px;
  align-items: start;
}
.about-prose p { font-size: clamp(17px, 1.8vw, 21px); line-height: 2; margin-bottom: 1.6em; color: #333; }
.about-side { display: grid; gap: 22px; }
.status-card, .stack-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 22px 24px;
  box-shadow: 6px 6px 0 rgba(26,26,26,.05);
}
.status-label { font-size: 10.5px; letter-spacing: .24em; display: block; margin-bottom: 14px; }
.status-card ul { list-style: none; }
.status-card li {
  font-size: 13px; color: var(--t2);
  padding: 7px 0; display: flex; align-items: center; gap: 10px;
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--line); flex: none;
}
.dot-live { background: #3bb273; animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(59,178,115,.4); } 50% { box-shadow: 0 0 0 6px rgba(59,178,115,0); } }
.stack-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.stack-tags span {
  font-size: 12px; padding: 6px 13px; border-radius: 999px;
  background: var(--bg); border: 1px solid var(--line); color: var(--t2);
  transition: all .2s;
}
.stack-tags span:hover { background: var(--hl); border-color: var(--ink); color: var(--ink); transform: translateY(-2px); }

/* ---------- 04 联系 ---------- */
.connect-list {
  list-style: none; position: relative; z-index: 1;
  border-top: 1px solid var(--line);
}
.connect-list li { border-bottom: 1px solid var(--line); }
.connect-list a {
  display: grid;
  grid-template-columns: 52px 44px 180px 1fr 40px;
  align-items: center; gap: 18px;
  padding: 24px 6px;
  position: relative;
}
.c-icon {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center; font-size: 20px;
  background: #fff; border: 1px solid var(--line);
  justify-self: start;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s;
}
.connect-list a:hover .c-icon {
  background: var(--hl); transform: rotate(6deg);
  box-shadow: 3px 4px 0 rgba(26,26,26,.9);
}
.c-num { font-size: 12px; color: var(--t3); letter-spacing: .1em; }
.c-name { font-size: clamp(19px, 2.2vw, 24px); font-weight: 700; letter-spacing: -.01em; position: relative; }
.c-name::after {
  content: ""; position: absolute; z-index: -1; left: -4px; right: -4px;
  bottom: 2px; height: .45em; background: var(--hl);
  transform: scaleX(0); transform-origin: left;
  transition: transform .4s var(--ease);
}
.connect-list a:hover .c-name::after { transform: scaleX(1); }
.c-val { font-size: 13px; letter-spacing: .03em; }
.c-arrow {
  justify-self: end; font-size: 20px;
  opacity: 0; transform: translateX(-10px);
  transition: all .35s var(--ease);
}
.connect-list a:hover .c-arrow { opacity: 1; transform: translateX(0); }

/* 复制成功气泡 */
.copy-tip {
  position: fixed; z-index: 97;
  background: var(--ink); color: var(--bg);
  font-family: var(--mono); font-size: 12px;
  padding: 8px 14px; border-radius: 8px;
  transform: translate(-50%, -140%);
  pointer-events: none;
  animation: tipin .3s var(--ease);
}
@keyframes tipin { from { opacity: 0; transform: translate(-50%, -120%); } to { opacity: 1; transform: translate(-50%, -140%); } }

/* ---------- 页脚 ---------- */
.site-foot {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto;
  padding: 40px var(--pad) 56px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; letter-spacing: .05em;
}
.site-foot a { position: relative; z-index: 2; }
.site-foot a:hover { color: var(--accent); }
.foot-mark {
  position: absolute; left: 50%; bottom: -.28em;
  transform: translateX(-50%);
  font-size: clamp(120px, 17vw, 250px);
  font-weight: 800; line-height: 1; letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(26,26,26,.12);
  pointer-events: none; user-select: none;
  white-space: nowrap;
}

/* 星号脚注彩蛋（点击弹出） */
.hero h1 .tick { cursor: pointer; }

/* 无动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}