/* =========================================================
   颂博 · 个人主页 — 设计系统
   美学方向：深色「编辑器 × 游戏终端」
   - 构建自 CSS 变量，全部主题集中在 :root
   - 字体：自托管 Poppins/Lora 的 latin 子集（见 assets/fonts/README.md）
     中文仍走系统字体 —— 中文字体动辄几 MB，不纳入
   ========================================================= */

/* ---------- 自托管字体（latin 子集）----------
   2026-10-08 前：--font-display/--font-body 声明了 Poppins/Lora
   但【全站从未加载过它们】（无 @font-face、无 Google Fonts、无字体文件），
   访客实际看到的一直是系统字体 ⇒ 本次把原设计真正实现。
   授权：两个字族都是 SIL OFL 1.1，允许自托管（详见 assets/fonts/README.md）。
   font-display: swap ⇒ 先用系统字体渲染、字体到位再替换，首屏不阻塞 ✓ */
@font-face {
  font-family: 'Poppins'; font-style: normal; font-weight: 600; font-display: swap;
  src: url('assets/fonts/poppins-600.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Poppins'; font-style: normal; font-weight: 700; font-display: swap;
  src: url('assets/fonts/poppins-700.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Poppins'; font-style: normal; font-weight: 800; font-display: swap;
  src: url('assets/fonts/poppins-800.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Lora'; font-style: normal; font-weight: 400; font-display: swap;
  src: url('assets/fonts/lora-400.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- 设计令牌 ---------- */
:root {
  /* 色板 · Anthropic 暖色体系 */
  --bg: #faf9f5;              /* 米白主背景 */
  --bg-deep: #f4f1e9;         /* 米白次背景（画布/输入底） */
  --panel: #ffffff;           /* 卡片面板 */
  --panel-2: #f6f3ec;         /* 卡片顶部浅层 */
  --text: #141413;            /* 主文字（深咖啡） */
  --muted: #5c5a52;           /* 次级文字 */
  --muted-2: #847f72;         /* 弱化文字 */
  --accent: #d97757;          /* Orange 珊瑚橙 */
  --accent-soft: #eacdc0;     /* 浅橙（柔和高亮/文字） */
  --accent2: #5a89af;         /* Blue 点缀 */
  --accent-green: #788c5d;    /* Green 点缀 */
  --danger: #c0513b;          /* 危险强调 */

  /* 字体体系 · Poppins 标题 / Lora 正文 */
  --font-display: "Poppins", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Lora", Georgia, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, monospace;

  /* 几何与深度（浅色柔和阴影） */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --shadow: 0 18px 44px rgba(0, 0, 0, .10);
  --shadow-lift: 0 30px 64px rgba(0, 0, 0, .16);

  /* 线条与描边 */
  --hairline: rgba(20, 20, 19, .10);
  --hairline-strong: rgba(20, 20, 19, .18);

  /* 节奏 */
  --space-xs: 8px;
  --space-sm: 14px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 68px;

  --nav-h: 68px;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

/* 顶部滚动进度条 */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  background: rgba(20,20,19,.07);
}
.progress i {
  position: absolute; top: 0; left: 0; height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  width: 0%;
  transition: width 50ms linear;
}

body {
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 600px at 82% -8%, rgba(106, 155, 204, .10), transparent 60%),
    radial-gradient(1000px 520px at 0% 8%, rgba(217, 119, 87, .08), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 胶片噪点，叠加质感（内嵌 SVG，无外部请求） */
body::before {
  content: "";
  position: fixed; inset: 0;
  z-index: 5; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: rgba(217, 119, 87, .35); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* 跳过导航（无障碍）：键盘用户可一键直达主内容 */
.skip-link {
  position: fixed; left: 16px; top: -64px; z-index: 120;
  padding: 10px 18px; border-radius: 8px;
  background: var(--accent); color: #0a0d1f; font-weight: 700; text-decoration: none;
  box-shadow: var(--shadow); transition: top .2s ease;
}
.skip-link:focus { top: 14px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #cfc9ba; border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #a89f8c; }

img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea { font: inherit; }

/* ---------- 背景动效 ---------- */
.bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(20, 20, 19, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 20, 19, .04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 92% 62% at 50% 0%, #000 28%, transparent 78%);
          mask-image: radial-gradient(ellipse 92% 62% at 50% 0%, #000 28%, transparent 78%);
}

.orb {
  position: absolute; border-radius: 50%; filter: blur(72px);
  opacity: .5; animation: orbFloat 18s ease-in-out infinite alternate;
}
.orb-a { width: 540px; height: 540px; top: -170px; left: -130px; background: radial-gradient(circle, rgba(90, 137, 175, .34), transparent 65%); }
.orb-b { width: 500px; height: 500px; top: 30%; right: -150px; background: radial-gradient(circle, rgba(217, 119, 87, .30), transparent 65%); animation-delay: -7s; }
@keyframes orbFloat {
  from { transform: translateY(-22px) scale(1); }
  to   { transform: translateY(42px) scale(1.14); }
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(250, 249, 245, .72);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, box-shadow .3s;
}
.nav.scrolled {
  background: rgba(250, 249, 245, .9);
  border-bottom-color: var(--hairline);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .05);
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 24px;
  height: var(--nav-h); display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-size: 1.3rem; font-weight: 700; text-decoration: none; letter-spacing: 1px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  flex-shrink: 0; white-space: nowrap;
  padding-right: 12px;
}
.nav-links { list-style: none; display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.nav-links a {
  padding: 8px 10px; border-radius: 30px; text-decoration: none;
  color: var(--muted); font-size: .9rem; white-space: nowrap;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); background: rgba(217, 119, 87, .12); }
.nav-links a.is-on { color: var(--accent); }
.nav-links a.is-on::after { content: ""; display: block; height: 2px; margin: 3px 4px 0; border-radius: 2px; background: linear-gradient(90deg, var(--accent2), var(--accent)); }
.nav-links .nav-cta {
  margin-left: 8px; padding: 8px 18px; border: none;
  color: #0a0d1f !important; font-weight: 700;
  background: linear-gradient(120deg, var(--accent), #f8c453);
  box-shadow: 0 6px 18px rgba(217, 119, 87, .28);
  transition: transform .2s, box-shadow .2s, filter .2s;
}
.nav-links .nav-cta::after { display: none !important; }
.nav-links .nav-cta:hover { background: linear-gradient(120deg, var(--accent-soft), var(--accent)); transform: translateY(-1px); box-shadow: 0 10px 24px rgba(217, 119, 87, .34); }

/* 汉堡 */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 1025px) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; }
}
@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); right: 16px; min-width: 220px;
    flex-direction: column; align-items: stretch;
    background: rgba(255, 255, 255, .98); border: 1px solid var(--hairline);
    border-radius: 16px; padding: 10px; gap: 2px; display: none;
    z-index: 70;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 14px; font-size: .95rem; }
  .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
}

/* ---------- Hero ---------- */
.hero {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; min-height: 100svh; position: relative; padding: 140px 24px 120px;
}
.hero-inner { position: relative; z-index: 1; max-width: 820px; text-align: center; }

/* 顶栏聚焦扫描线 */
.hero-inner::before {
  content: ""; position: absolute; top: -24px; left: 50%; transform: translateX(-50%);
  width: 120px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.eyebrow {
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 30px; font-weight: 600;
}
.status-pill {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .12em;
  color: var(--text); text-transform: uppercase;
  padding: 8px 18px 8px 14px;
  border: 1px solid rgba(94, 234, 212, .28); background: rgba(94, 234, 212, .05);
  border-radius: 40px; box-shadow: 0 0 0 6px rgba(94,234,212,.02);
}
.status-pill i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(94,234,212,.6);
  animation: statusPulse 2s ease-out infinite;
}
@keyframes statusPulse {
  0% { box-shadow: 0 0 0 0 rgba(94,234,212,.52); }
  70% { box-shadow: 0 0 0 8px rgba(94,234,212,0); }
  100% { box-shadow: 0 0 0 0 rgba(94,234,212,0); }
}

.name-grad {
  display: block; font-size: clamp(3.6rem, 9vw, 7rem); font-weight: 800; line-height: 1.02;
  letter-spacing: -.01em; font-family: var(--font-display);
  /* 浅色底可读的暖色渐变：深咖 → 珊瑚橙 → 浅橙 */
  background: linear-gradient(120deg, #2c2a26 0%, #a4583a 42%, var(--accent) 70%, #cf9272 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 14px 40px rgba(217, 119, 87, .18));
  position: relative;
}

.typed-wrap {
  font-size: 1.12rem; color: var(--accent2); margin: 20px 0 0; min-height: 1.6em;
  font-family: var(--font-mono);
}
.typed-wrap .caret {
  display: inline-block; width: 10px; height: 1.05em; vertical-align: text-bottom;
  background: linear-gradient(180deg, transparent, currentColor);
  animation: blink 1s step-end infinite; border-radius: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

.bio { color: var(--muted); max-width: 600px; margin: 20px auto 0; font-size: 1.05rem; }

.actions { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; justify-content: center; }

.scroll-hint {
  /* 不能写死 30px：短屏 hero 高于视口会把 hint 顶出首屏。详见 skill */
  position: absolute; left: 50%; bottom: max(30px, calc(100% - 100vh + 12px));
  transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid rgba(20, 20, 19, .25);
  border-radius: 20px; display: flex; justify-content: center; padding-top: 8px;
  transition: border-color .3s;
}
.scroll-hint:hover { border-color: rgba(217, 119, 87, .6); }
.scroll-hint span { width: 4px; height: 9px; border-radius: 4px; background: var(--accent); animation: scrollDrop 1.6s ease-in-out infinite; }
@keyframes scrollDrop {
  0% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(11px); opacity: .4; }
  100% { transform: translateY(0); opacity: 1; }
}

/* 首屏头像 */
.hero-avatar {
  width: 98px; height: 98px; margin: 0 auto 26px; border-radius: 50%;
  display: grid; place-items: center; position: relative; overflow: hidden;
  background: linear-gradient(145deg, #fff, var(--panel-2));
  border: 1px solid rgba(90, 137, 175, .4);
  box-shadow: 0 0 0 8px rgba(90, 137, 175, .06), 0 18px 44px rgba(0, 0, 0, .12);
}
.hero-avatar::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120px 60px at 70% 18%, rgba(90, 137, 175, .22), transparent 60%);
}
.hero-avatar span {
  position: relative; font-family: var(--font-display);
  font-size: 3rem; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, #2c4258, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* 社交图标栏 */
.social-row { display: flex; justify-content: center; gap: 14px; margin-top: 26px; }
.social {
  width: 46px; height: 46px; border-radius: 14px; text-decoration: none;
  display: grid; place-items: center;
  background: rgba(20, 20, 19, .04); border: 1px solid var(--hairline);
  color: var(--muted);
  transition: color .3s, border-color .3s, transform .3s, background .3s;
}
.social:hover { color: var(--accent); border-color: rgba(90, 137, 175, .45); transform: translateY(-3px); background: rgba(90, 137, 175, .06); }

/* 关键数据 / 成就栏 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.stat {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 24px 16px; text-align: center;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.stat:hover { transform: translateY(-4px); border-color: rgba(90, 137, 175, .4); box-shadow: var(--shadow); }
.stat b {
  display: block; font-family: var(--font-mono); font-size: 2.1rem; font-weight: 700; line-height: 1.1;
  background: linear-gradient(120deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { display: block; color: var(--muted); font-size: .85rem; margin-top: 8px; }

/* 精华 / 文章 */
.writing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.wip {
  font-family: var(--font-mono); font-size: .7rem; color: var(--accent-green);
  padding: 3px 9px; border: 1px solid rgba(94, 234, 212, .28); background: rgba(94, 234, 212, .06);
  border-radius: 6px; white-space: nowrap;
}
.write-meta { font-family: var(--font-mono); font-size: .74rem; color: var(--muted-2); margin-top: 2px; }

/* 简历页辅助 */
.resume-page { max-width: 820px; margin: 0 auto; }
.resume-actions { justify-content: center; }
.resume-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.resume-list li { line-height: 1.7; color: var(--muted); font-size: .92rem; }

/* 技能库：条目来源标注 */
.skill-src { font-style: normal; color: var(--muted); opacity: .7; font-size: .86em; }

/* 技能库：条目链接（指向 skills.sh 官方页） */
.skill-link { color: var(--accent2); text-decoration: none; border-bottom: 1px solid rgba(56, 189, 248, .3); }
.skill-link:hover { border-bottom-color: var(--accent2); }
.skill-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.resume-list li b { color: var(--text); }
.tag-text { display: grid; gap: 14px; }
.tag-text div { display: grid; grid-template-columns: 160px 1fr; gap: 14px; align-items: baseline; font-size: .92rem; line-height: 1.7; }
.tag-text b { color: var(--accent2); font-weight: 600; }
.tag-text span { color: var(--muted); }
@media (max-width: 720px) { .tag-text div { grid-template-columns: 1fr; gap: 4px; } }

/* 打印友好（简历导出） */
@media print {
  .bg, .progress, .nav, .to-top, footer, .resume-actions { display: none !important; }
  body, main { background: #fff !important; color: #111 !important; }
  .section { padding: 0 !important; }
  .tool-card { border: 1px solid #ddd; box-shadow: none; }
  .resume-page { max-width: 100%; }
  main { padding-top: 20px; }
}

/* ---------- 版块 ---------- */
.section { padding: var(--space-xl) 24px; }
.section .container { max-width: 1160px; margin: 0 auto; }
.tinted {
  background: linear-gradient(180deg, transparent, rgba(90, 137, 175, .05) 16%, rgba(90, 137, 175, .05) 84%, transparent);
}

.sec-heading { display: flex; align-items: baseline; gap: 16px; margin-bottom: var(--space-lg); }
.sec-no {
  font-family: var(--font-mono); font-size: .88rem; font-weight: 700; color: var(--accent);
  letter-spacing: .1em; white-space: nowrap;
}
.sec-title {
  font-size: clamp(1.9rem, 3.6vw, 2.5rem); font-weight: 800; line-height: 1.16; letter-spacing: -.01em;
  font-family: var(--font-display);
}
.sec-rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--hairline-strong), transparent); }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-sm); font-weight: 600;
  font-size: .95rem; text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s, background .25s, border-color .25s;
}
.btn svg { flex-shrink: 0; }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn:active { transform: translateY(0) scale(.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #ffc94d);
  color: #1a1406;
  position: relative; overflow: hidden;
  box-shadow: 0 10px 28px rgba(217, 119, 87, .35), inset 0 1px 0 rgba(255, 255, 255, .4);
}
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.5), transparent);
  transform: skewX(-22deg); transition: left .6s ease;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(217, 119, 87, .45), inset 0 1px 0 rgba(255, 255, 255, .4); }
.btn-primary:hover::after { left: 130%; }

.btn-ghost {
  background: #ffffff;
  border-color: var(--hairline-strong);
  color: var(--text);
  box-shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 4px 14px rgba(0,0,0,.05);
}
.btn-ghost:hover { background: var(--panel-2); transform: translateY(-2px); border-color: var(--accent); color: var(--accent); }

/* ---------- 关于 ---------- */
.split { display: grid; grid-template-columns: 1.35fr 1fr; gap: var(--space-lg); align-items: start; }
.split-text p { margin-bottom: var(--space-sm); color: var(--muted); }
.split-text p strong, .split-text p b { color: var(--text); font-weight: 600; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.tags li {
  font-family: var(--font-mono); font-size: .8rem; color: #3f6b8e;
  border: 1px solid rgba(90, 137, 175, .25); background: rgba(90, 137, 175, .07);
  padding: 7px 14px; border-radius: 20px;
}

/* ---------- 工具箱入口（首页） ---------- */
.tools-entry {
  max-width: 760px;
  display: grid;
  gap: 24px;
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(90, 137, 175, .06), transparent 45%),
              linear-gradient(180deg, #fff, var(--panel-2));
  border: 1px solid var(--hairline);
}
.tools-entry > p { color: var(--muted); line-height: 1.9; font-size: .98rem; }
.tools-cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.tools-note { font-family: var(--font-mono); font-size: .8rem; color: var(--muted-2); }

/* ---------- 独立工具页标题区 ---------- */
.page-lead { max-width: 780px; padding: calc(var(--nav-h) + clamp(36px, 7vw, 72px)) 0 clamp(30px, 4vw, 48px); }
.page-lead .sec-heading { margin-bottom: 0; }
.page-lead .lead { color: var(--muted); font-size: 1.02rem; margin-top: 16px; line-height: 1.9; }

/* ---------- 技能 ---------- */
.skill-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; }
.skill { padding: 14px 0; border-top: 1px solid var(--hairline); }
.skill-head { display: flex; justify-content: space-between; align-items: baseline; font-size: .95rem; margin-bottom: 10px; }
.skill-val { font-family: var(--font-mono); font-size: .85rem; color: var(--accent); }
.skill-bar { height: 6px; background: rgba(20, 20, 19, .07); border-radius: 6px; overflow: hidden; }
.skill-bar span {
  display: block; height: 100%; border-radius: 6px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  width: var(--w); transform: scaleX(0); transform-origin: left;
  transition: transform 1.1s cubic-bezier(.2,.7,.2,1);
}
.reveal.showed .skill-bar span { transform: scaleX(1); }
.skill-desc { color: var(--muted); font-size: .88rem; margin-top: 8px; }

/* marquee */
.marquee {
  overflow: hidden; margin-top: 30px; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  padding: 16px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: marquee 28s linear infinite; }
.marquee-track:hover { animation-play-state: paused; }
.marquee-track span { padding: 0 16px; font-family: var(--font-mono); font-size: .92rem; color: var(--muted); white-space: nowrap; }
.marquee-track span::before { content: "/ "; color: var(--accent); opacity: .5; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 项目 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px; }
.card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 14px 34px rgba(0, 0, 0, .08);
  position: relative; overflow: hidden;
  padding: 28px; display: flex; flex-direction: column; gap: 14px;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
  isolation: isolate;
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(90,137,175,.06), transparent 55%);
  opacity: 0; transition: opacity .35s;
}
.card::after {
  content: ""; position: absolute; top: -46px; right: -46px; z-index: -1; width: 130px; height: 130px;
  background: radial-gradient(circle, rgba(90, 137, 175, .08), transparent 70%);
  opacity: 0; transition: opacity .4s; pointer-events: none;
}
.card:hover { transform: translateY(-6px); border-color: rgba(90, 137, 175, .45); box-shadow: var(--shadow-lift); }
.card:hover::before, .card:hover::after { opacity: 1; }

.card-top { display: flex; justify-content: space-between; align-items: center; }
.card-icon {
  width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 30% 25%, rgba(255,255,255,.12), rgba(255,255,255,.03));
  border: 1px solid var(--hairline-strong); border-radius: 14px;
  color: var(--accent2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
  transition: color .3s, border-color .3s, transform .3s;
}
.card:hover .card-icon { color: var(--accent); border-color: rgba(217,119,87,.35); transform: scale(1.06); }
.card-tag {
  font-family: var(--font-mono); font-size: .72rem; color: var(--accent2);
  padding: 4px 10px; border: 1px solid rgba(90, 137, 175, .25); background: rgba(90, 137, 175, .06);
  border-radius: 20px; white-space: nowrap;
}
.card h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: .01em; }
.card > p { color: var(--muted); font-size: .92rem; }

.card .more {
  margin-top: auto; color: var(--accent); text-decoration: none; font-size: .9rem;
  display: inline-flex; align-items: center; gap: 8px; width: max-content;
}
.card .more span { transition: transform .3s; }
.card .more:hover span { transform: translateX(5px); }

/* ---------- 服务 ---------- */
.service-card { display: flex; flex-direction: column; }
.service-list { margin-top: 16px; padding: 0; list-style: none; border-top: 1px dashed var(--hairline); padding-top: 14px; }
.service-list li {
  display: flex; align-items: baseline; gap: 10px;
  color: var(--muted); font-size: .9rem; line-height: 1.6; padding: 4px 0;
}
.service-list li::before {
  content: ""; width: 6px; height: 6px; flex: 0 0 auto; border-radius: 50%;
  background: linear-gradient(120deg, var(--accent2), var(--accent));
  transform: translateY(-1px);
}
.services-note { margin-top: 28px; text-align: center; color: var(--muted); }
.services-note a.more {
  color: var(--accent); text-decoration: none; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.services-note .more span { transition: transform .3s; }
.services-note .more:hover span { transform: translateX(5px); }

/* ---------- 工具箱 ---------- */
.tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 22px; }
.tool-card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hairline); border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(255,255,255,.03) inset, 0 14px 34px rgba(0,0,0,.28);
  padding: 26px; position: relative; overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
  isolation: isolate;
}
.tool-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(90,137,175,.1), transparent 55%);
  opacity: 0; transition: opacity .35s;
}
.tool-card::after {
  content: ""; position: absolute; top: -46px; right: -46px; z-index: -1; width: 130px; height: 130px;
  background: radial-gradient(circle, rgba(90, 137, 175, .08), transparent 70%);
  opacity: 0; transition: opacity .4s; pointer-events: none;
}
.tool-card:hover { transform: translateY(-4px); border-color: rgba(90, 137, 175, .4); box-shadow: var(--shadow-lift); }
.tool-card:hover::before, .tool-card:hover::after { opacity: 1; }
.tool-card > p { color: var(--muted); font-size: .9rem; margin-bottom: 18px; }

.tool-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 16px; }
.tool-head h1 {
  font-size: 1.9rem; font-weight: 800; line-height: 1.2; margin: 0;
  background: linear-gradient(120deg, var(--text), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
/* 卡片标题：语义用 h2（h1 之下不应跳级到 h3），h3 保留兼容 */
.tool-head h2, .tool-head h3 { font-size: 1.12rem; font-weight: 700; display: inline-flex; align-items: center; gap: 9px; }
.tool-head h2::before, .tool-head h3::before {
  content: ""; width: 2px; height: 1em; border-radius: 2px;
  background: linear-gradient(180deg, var(--accent2), var(--accent));
}
.tool-tag {
  font-family: var(--font-mono); font-size: .68rem; color: #3f6b8e;
  padding: 3px 9px; border: 1px solid rgba(90, 137, 175, .2); background: rgba(90,137,175,.06);
  border-radius: 6px; white-space: nowrap;
}
.tool-controls { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.tool-slider { margin-bottom: 16px; }
.tool-slider label { display: flex; justify-content: space-between; font-size: .85rem; color: var(--muted); margin-bottom: 8px; }
.tool-slider label span { font-family: var(--font-mono); color: var(--text); }
.tool-slider input[type="range"] { width: 100%; accent-color: var(--accent); }
.tool-label { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.tool-stage { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.tool-col { flex: 1; min-width: 160px; }

.tool-canvas {
  width: 100%; background: var(--bg-deep);
  border: 1px solid var(--hairline); border-radius: var(--radius-sm); object-fit: contain;
}
.tool-canvas-pick { height: auto; max-height: 300px; }
.tool-dl { margin-top: 10px; }

/* 筛选区预设 */
.file-btn { position: relative; }
.file-btn input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.tool-textarea {
  width: 100%; min-height: 96px; resize: vertical; margin-bottom: 12px;
  background: var(--bg-deep); color: var(--text);
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  padding: 12px; font-family: var(--font-mono); font-size: .85rem; line-height: 1.55;
}
.tool-textarea:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.tool-textarea[readonly] { background: var(--panel); }

.esc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 12px; }
.esc-actions .btn { flex: 1 1 auto; min-width: 88px; }

.filter-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px; margin: 16px 0; }
.filter-fields .tool-slider { margin-bottom: 8px; }
.presets { gap: 10px; }
.presets .btn { flex: 0 0 auto; }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.stat-cell {
  background: rgba(255, 255, 255, .04); border: 1px solid var(--hairline);
  border-radius: 14px; padding: 16px 10px; text-align: center;
}
.stat-cell b { display: block; font-size: 1.7rem; font-weight: 700; color: var(--accent2); font-family: var(--font-mono); line-height: 1.15; }
.stat-cell span { font-size: .8rem; color: var(--muted); }

.tool-input {
  flex: 1; min-width: 0; padding: 11px 12px; background: var(--bg-deep); color: var(--text);
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: .85rem; box-sizing: border-box;
}
.tool-input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

.tool-color-input {
  flex: none; width: 46px; height: 46px; padding: 2px; background: transparent;
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm); cursor: pointer;
}
.tool-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.tool-color-input::-webkit-color-swatch { border: 0; border-radius: calc(var(--radius-sm) - 3px); }
.tool-block { margin-bottom: 18px; }
.tool-block .tool-label { display: inline-block; margin-bottom: 8px; }

.qr-row { display: flex; justify-content: center; margin: 10px 0 8px; }
.qr-row canvas { max-width: 100%; height: auto; border-radius: 12px; box-shadow: 0 6px 24px rgba(0, 0, 0, .45); }

.bytes { font-size: .85rem; color: var(--muted); margin: 10px 0 14px; line-height: 1.6; }
.bytes b { color: var(--accent); font-family: var(--font-mono); }

.color-result { display: flex; align-items: center; gap: 14px; margin-top: 14px; padding: 12px 14px; background: rgba(255,255,255,.04); border: 1px solid var(--hairline); border-radius: var(--radius-sm); }
.color-swatch { width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--hairline-strong); background: repeating-conic-gradient(#111 0 25%, #222 0 50%) 0 0/16px 16px; }
.color-text { font-family: var(--font-mono); font-size: .85rem; color: var(--muted); }
.color-text span { color: var(--text); }

/* ---------- 工具箱：工具列表引导页 / 单工具视图 ---------- */
.tool-launcher { margin-top: 6px; }
/* 让 hidden 属性真正生效
   —— .launcher-grid 等元素带 display 规则，会盖掉浏览器默认的 [hidden]{display:none}，
      导致 games.html 里 launcher.hidden = true 失效：点开游戏后列表不消失，
      游戏画面被挤在整张列表下面。（此为线上既有问题，非本次新增） */
[hidden] { display: none !important; }

.launcher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.tool-item {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 20px; text-align: left; cursor: pointer; outline: none;
  text-decoration: none;   /* games.html 用 <a> 做卡片，去掉 <a> 默认下划线 */
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hairline); border-radius: var(--radius);
  color: var(--text);
  box-shadow: 0 1px 0 rgba(255,255,255,.03) inset, 0 10px 24px rgba(0,0,0,.22);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), border-color .3s, box-shadow .3s, background .3s;
}
.tool-item:hover {
  transform: translateY(-3px);
  border-color: rgba(90, 137, 175, .45);
  box-shadow: var(--shadow);
  background: linear-gradient(180deg, #141b3d, var(--panel));
}
.tool-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.ti-no {
  font-family: var(--font-mono); font-size: .8rem; color: var(--accent2);
  min-width: 32px; height: 32px; display: grid; place-items: center; flex-shrink: 0;
  border: 1px solid rgba(90, 137, 175, .3); background: rgba(90, 137, 175, .06);
  border-radius: 9px;
}
.ti-body { display: flex; flex-direction: column; gap: 3px; flex: 1; min-width: 0; }
.ti-body strong { font-size: .98rem; font-weight: 650; letter-spacing: .01em; }
.ti-body small { color: var(--muted); font-size: .78rem; line-height: 1.4; }
.ti-arrow { width: 18px; height: 18px; color: var(--muted-2); flex-shrink: 0; transition: color .3s, transform .3s; }
.tool-item:hover .ti-arrow { color: var(--accent); transform: translateX(3px); }

/* 单工具视图 */
.tool-view { animation: toolIn .42s cubic-bezier(.2, .8, .2, 1); }
.tool-view[hidden] { display: none; animation: none; }
@keyframes toolIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}
.tool-back {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  margin-bottom: 22px; padding: 9px 16px; font-size: .86rem;
  color: var(--muted); background: rgba(255, 255, 255, .03);
  border: 1px solid var(--hairline); border-radius: var(--radius-sm);
  transition: color .3s, border-color .3s, background .3s;
}
.tool-back:hover { color: var(--text); border-color: rgba(90, 137, 175, .4); background: rgba(90, 137, 175, .06); }
.tool-view .tool-card { max-width: 820px; }
.tool-view .tool-card:hover { transform: none; }

/* ---------- 历程 ---------- */
.timeline { position: relative; margin: 8px 0 0 8px; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, rgba(90,137,175,.4), rgba(217,119,87,.3));
  border-radius: 2px;
}
.tl-item { position: relative; padding: 0 0 32px; }
.tl-dot {
  position: absolute; left: -39px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 5px rgba(217,119,87,.14);
  animation: journeyPulse 3.2s ease-in-out infinite;
}
.tl-time {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent2);
}
.tl-body h3 { font-size: 1.08rem; font-weight: 700; margin: 6px 0; }
.tl-body p { color: var(--muted); font-size: .9rem; }
@keyframes journeyPulse {
  0% { box-shadow: 0 0 0 0 rgba(217, 119, 87, .35); }
  70% { box-shadow: 0 0 0 11px rgba(217, 119, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(217, 119, 87, 0); }
}

/* ---------- 联系 ---------- */
.contact-center { text-align: center; }
.contact-center .sec-heading { justify-content: center; }
.contact-center .sec-rule { display: none; }
.contact-center > p { color: var(--muted); }
.contact-center .actions { justify-content: center; }

/* ---------- 页脚 ---------- */
footer {
  background: linear-gradient(180deg, transparent, rgba(240, 236, 226, .85));
  margin-top: 40px; text-align: center; padding: 56px 24px 80px;
  border-top: 1px solid var(--hairline);
}
footer p { color: var(--muted); font-size: .9rem; }
footer .contact-links { display: flex; justify-content: center; gap: 20px; margin: 18px 0 12px; }
footer .contact-links a { color: var(--muted); text-decoration: none; transition: color .2s, transform .3s; }
footer .contact-links a:hover { color: var(--accent); transform: translateY(-2px); }
.copyright { margin-top: 24px; font-size: .8rem; color: var(--muted-2); font-family: var(--font-mono); }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 60;
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  background: rgba(217, 119, 87, .12); border: 1px solid rgba(217, 119, 87, .38); color: var(--accent);
  opacity: 0; pointer-events: none; transform: translateY(14px);
  transition: all .3s;
}
.to-top:hover { background: rgba(217, 119, 87, .22); transform: translateY(0); }
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ---------- Reveal 动效 ---------- */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
.reveal.showed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  .orb, .marquee-track, .scroll-hint span, .caret, .tl-dot, .status-pill i { animation: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; gap: 30px; }
  .skill-grid { grid-template-columns: 1fr 1fr; gap: 12px 28px; }
  .section { padding: var(--space-lg) 24px; }
}
@media (max-width: 720px) {
  .skill-grid { grid-template-columns: 1fr; }
  .nav-inner { padding: 0 16px; }
  .tools { grid-template-columns: 1fr; }
  .launcher-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 400px) {
  .section { padding: var(--space-lg) 16px; }
  .name-grad { font-size: clamp(2.4rem, 11vw, 3.2rem); }
  .actions { justify-content: center; }
  .card, .tool-card { padding: 22px; }
  .tool-item { padding: 15px 16px; }
  .stats { grid-template-columns: 1fr; }
  .esc-actions { flex-direction: column; }
  .esc-actions .btn { width: 100%; }
  .filter-fields { grid-template-columns: 1fr; }
  .tool-card .btn-ghost { padding: 10px 12px; }
  .to-top { right: 18px; bottom: 18px; }
  .sec-heading { gap: 10px; flex-wrap: wrap; }
}

@media (max-width: 480px) and (max-height: 780px) {
  .scroll-hint { display: none; }
}