/* ============================================================
   hedongli1 个人作品集 · 设计系统（单页作品集 + 博客子页）
   风格：深色为主 · 暖色琥珀强调 · 粒子开场 · 分区滚动导航
   字体：Space Grotesk / Noto Sans SC / JetBrains Mono（免费商用 OFL）
   纪律：8px 网格 · 圆角≤2档(卡16/控10) · 文字色≤3档 · 单一 hero 锚点
   ============================================================ */

:root {
  /* 深色（默认 · 黑金） */
  --bg: #0D0B09;
  --bg-2: #131009;
  --card: #1A1610;
  --card-2: #241E15;
  --ink: #F6F0E4;
  --ink-2: #CDC3B2;
  --ink-3: #8A7F6C;
  --line: #2B2418;

  --brand: #F5A623;
  --brand-strong: #FBBF24;
  --brand-soft: #D97706;
  --brand-tint: #2A1F0F;
  --accent: #FB923C;

  --btn-bg: #F5A623;
  --btn-ink: #1A120A;
  --btn-hover: #FBBF24;

  --shadow-card: 0 1px 3px rgba(0,0,0,.4), 0 12px 32px -16px rgba(0,0,0,.6);
  --radius-card: 16px;
  --radius-ctrl: 10px;

  --font-display: "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --container: 1080px;
}

[data-theme="light"] {
  --bg: #FAF6EF;
  --bg-2: #F3ECE0;
  --card: #FFFFFF;
  --card-2: #FBF7F0;
  --ink: #2A241B;
  --ink-2: #5C5345;
  --ink-3: #94897A;
  --line: #E7DCC9;

  --brand: #B45309;
  --brand-strong: #92400E;
  --brand-soft: #D97706;
  --brand-tint: #FFF7ED;
  --accent: #EA580C;

  --btn-bg: #B45309;
  --btn-ink: #FFFFFF;
  --btn-hover: #92400E;

  --shadow-card: 0 1px 3px rgba(60,42,20,.07), 0 10px 28px -14px rgba(180,83,9,.16);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  color: var(--ink); background: var(--bg); overflow-x: hidden;
  transition: background .25s ease, color .25s ease;
}
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.25; margin: 0; font-weight: 700; }
p { margin: 0; }
a { color: var(--brand); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--brand-strong); }
img { max-width: 100%; display: block; }
::selection { background: var(--brand); color: var(--btn-ink); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--brand); color: var(--btn-ink); padding: 8px 16px; border-radius: 0 0 var(--radius-ctrl) 0; z-index: 200; }
.skip-link:focus { left: 0; }

/* ---------- 预加载 ---------- */
.preloader { position: fixed; inset: 0; z-index: 300; background: var(--bg); display: grid; place-items: center; transition: opacity .5s ease, visibility .5s; }
.preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-mark { font-family: var(--font-display); font-size: 44px; font-weight: 700; color: var(--brand); letter-spacing: -0.02em; animation: pulse 1.2s ease-in-out infinite; }
.preloader-sub { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); letter-spacing: .18em; text-transform: uppercase; text-align: center; margin-top: 12px; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- 头部 ---------- */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: 64px; border-bottom: 1px solid transparent; transition: background .25s ease, border-color .25s ease; }
.site-header.scrolled { background: color-mix(in srgb, var(--bg) 80%, transparent); backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom-color: var(--line); }
.header-inner { display: flex; align-items: center; height: 64px; gap: 20px; }

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand-strong)); color: #1A120A; display: grid; place-items: center; font-size: 18px; font-weight: 700; box-shadow: 0 0 12px -2px rgba(245,166,35,.6), 0 0 0 2px rgba(245,166,35,.22); }

.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link { padding: 8px 12px; border-radius: var(--radius-ctrl); color: var(--ink-2); font-size: 14px; font-weight: 500; }
.nav-link:hover { color: var(--ink); background: var(--card); }
.nav-link.active { color: var(--brand-strong); }

.theme-toggle { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: var(--radius-ctrl); background: var(--card); color: var(--ink-2); cursor: pointer; transition: color .15s, border-color .15s; }
.theme-toggle:hover { color: var(--brand); border-color: var(--brand-soft); }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ---------- 全页固定背景（星云 + 星空粒子，铺满整页） ---------- */
.bg-fx { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
/* 最底层：AI 生成的深色星云背景图（铺满 + 居中裁切 + 缓慢漂浮 + 金色调滤镜） */
.bg-image { position: absolute; inset: -5%; z-index: 0;
  background-image: url('/assets/images/bg-nebula.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: saturate(.72) hue-rotate(-16deg) brightness(.82) sepia(.22);
  animation: bgDrift 36s ease-in-out infinite alternate;
}
/* 图片之上的金色氛围叠加层：把深蓝底色统一压向黑金 */
.bg-image::after { content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(110% 80% at 50% 46%, rgba(13,11,9,.10) 0%, rgba(13,11,9,.66) 100%),
    linear-gradient(120deg, rgba(245,166,35,.14) 0%, transparent 40%, rgba(251,146,60,.10) 100%);
}
@keyframes bgDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1.0); }
  100% { transform: translate3d(-1.6%, -1.2%, 0) scale(1.08); }
}
.bg-nebula { position: absolute; inset: 0;
  background:
    radial-gradient(900px 480px at 72% 20%, rgba(245,166,35,.20), transparent 70%),
    radial-gradient(720px 460px at 18% 76%, rgba(251,146,60,.13), transparent 70%),
    radial-gradient(560px 420px at 50% 46%, rgba(245,195,75,.09), transparent 72%);
  filter: blur(14px);
  animation: nebulaShift 18s ease-in-out infinite alternate;
}
@keyframes nebulaShift {
  0%   { transform: translate3d(0, 0, 0) scale(1); opacity: .75; }
  100% { transform: translate3d(-50px, -34px, 0) scale(1.16); opacity: 1; }
}
.bg-fx canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* 星点网格：细点阵 + 径向渐隐（复刻 lhwu1 背景的网格层） */
.bg-grid { position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(246,240,228,.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(246,240,228,.13) 1px, transparent 1px);
  background-size: clamp(44px, 6vw, 84px) clamp(44px, 6vw, 84px);
  mask-image: radial-gradient(circle at 50% 42%, #000 0 34%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 0 34%, transparent 78%);
  opacity: .8;
}

/* 旋转光锥（已移除） */
/* 前景纵深遮罩：四角暗角 + 左右浅→深 + 顶部渐隐（复刻 lhwu1 的多层遮罩） */
.bg-vignette { position: absolute; inset: 0; opacity: .85;
  background:
    radial-gradient(120% 90% at 50% 42%, transparent 56%, rgba(13,11,9,.5) 100%),
    linear-gradient(90deg, rgba(13,11,9,.78) 0%, rgba(13,11,9,.16) 42%, rgba(13,11,9,.5) 100%),
    linear-gradient(0deg, rgba(13,11,9,.66) 0%, transparent 40%);
}

/* 轨道环：光点绕行 canvas，置于粒子层之上、内容层之下 */
#orbit { z-index: 1; opacity: .95; }

/* 明暗主题适配：浅色模式下削弱网格/暗角，避免晃眼 */
[data-theme="light"] .bg-grid { opacity: .3; }
[data-theme="light"] .bg-vignette { opacity: .45; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; padding: 96px 0 64px; background: transparent; }
.hero .container { position: relative; z-index: 2; text-align: center; will-change: transform, opacity; }
.hero-avatar { width: 112px; height: 112px; border-radius: 50%; margin: 0 auto 24px; background: linear-gradient(135deg, var(--brand), var(--accent)); display: grid; place-items: center; font-family: var(--font-display); font-size: 44px; font-weight: 700; color: #1A120A; box-shadow: 0 0 0 6px var(--brand-tint), 0 12px 40px -8px rgba(245,166,35,.5); }
.hero-eyebrow { font-family: var(--font-mono); font-size: 13px; letter-spacing: .22em; text-transform: uppercase; color: var(--brand); margin-bottom: 16px; }
.hero-name { font-size: clamp(44px, 8vw, 76px); letter-spacing: -0.02em; }
.hero-name .dot { color: var(--brand); }
.hero-motto { margin-top: 20px; font-family: var(--font-display); font-size: clamp(18px, 3vw, 24px); font-weight: 500; color: var(--ink-2); }
.hero-desc { margin-top: 14px; font-size: 16px; color: var(--ink-3); max-width: 560px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }
.hero-scroll { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 1; color: var(--ink-3); font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; animation: bob 2s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,8px); } }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; gap: 6px; height: 48px; padding: 0 28px; border-radius: var(--radius-ctrl); font-family: var(--font-display); font-size: 16px; font-weight: 600; cursor: pointer; transition: background .15s, color .15s, border-color .15s, transform .15s; }
.btn:active { transform: translateY(1px); }
.btn-arrow { font-weight: 400; }
.btn-primary { background: var(--btn-bg); color: var(--btn-ink); box-shadow: 0 8px 24px -8px rgba(245,166,35,.55); }
.btn-primary:hover { background: var(--btn-hover); color: var(--btn-ink); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--brand-soft); color: var(--brand-strong); }

/* ---------- 分区通用 ---------- */
.section { padding: 88px 0; }
.section-alt { background: transparent; }
.section-head { margin-bottom: 48px; }
.section-kicker { font-family: var(--font-mono); font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--brand); margin-bottom: 12px; }
.section-title { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.01em; }
.section-title .dot { color: var(--brand); }
.section-lead { margin-top: 16px; font-size: 16px; color: var(--ink-2); max-width: 640px; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: start; }
.about-text { font-size: 16px; color: var(--ink-2); line-height: 1.8; }
.about-text p + p { margin-top: 16px; }
.about-text b { color: var(--ink); font-weight: 600; }
.info-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 24px; }
.info-row { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.info-row:last-child { border-bottom: none; }
.info-row .k { color: var(--ink-3); }
.info-row .v { color: var(--ink); font-weight: 500; text-align: right; }

/* ---------- 技能 ---------- */
.skill-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.skill-item { }
.skill-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.skill-name { font-family: var(--font-display); font-size: 15px; font-weight: 600; color: var(--ink); }
.skill-level { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.skill-bar { height: 8px; background: var(--card-2); border-radius: 999px; overflow: hidden; }
.skill-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--brand-soft), var(--brand)); width: 0; transition: width 1s cubic-bezier(.2,.7,.2,1); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.skill-tag { padding: 4px 12px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 13px; color: var(--ink-2); }

/* ---------- 项目 ---------- */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.project-card { display: flex; flex-direction: column; gap: 12px; min-height: 200px; background: rgba(26, 22, 16, 0.5); border: 1px solid rgba(245, 166, 35, 0.14); border-radius: var(--radius-card); padding: 0; overflow: hidden; box-shadow: var(--shadow-card); color: var(--ink); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.project-card:hover { transform: translateY(-4px); border-color: var(--brand-soft); color: var(--ink); background: rgba(26, 22, 16, 0.66); }
/* 项目预览图：卡片顶部大图 */
.project-thumb { height: 150px; width: 100%; overflow: hidden; position: relative; flex-shrink: 0; }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.project-card:hover .project-thumb img { transform: scale(1.05); }
.project-body { display: flex; flex-direction: column; gap: 12px; padding: 20px 26px 26px; flex: 1; }
.project-card .proj-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.project-tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: .02em; padding: 3px 8px; border-radius: 6px; background: var(--brand-tint); color: var(--brand); border: 1px solid var(--brand-soft); font-weight: 500; }
.project-lang { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.project-card h3 { font-size: 19px; }
.project-card p { font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.project-links { margin-top: auto; display: flex; gap: 14px; font-size: 13px; font-weight: 600; }
.project-card-empty { border-style: dashed; background: transparent; }

/* ---------- 经历 ---------- */
.timeline { list-style: none; margin: 0; padding: 0 0 0 24px; border-left: 2px solid var(--line); }
.timeline-item { position: relative; padding: 0 0 40px 24px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot { position: absolute; left: -33px; top: 5px; width: 14px; height: 14px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 5px var(--brand-tint); }
.timeline-date { font-family: var(--font-mono); font-size: 13px; color: var(--brand); }
.timeline-title { font-size: 18px; margin-top: 6px; }
.timeline-org { font-size: 14px; color: var(--ink-3); margin-top: 2px; }
.timeline-text { margin-top: 8px; font-size: 15px; color: var(--ink-2); }

/* ---------- 亮点（others） ---------- */
.highlight-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.highlight-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 22px; text-align: center; }
.highlight-num { font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--brand); }
.highlight-label { margin-top: 6px; font-size: 13px; color: var(--ink-3); }

/* ---------- 联系 ---------- */
.contact-inner { text-align: center; max-width: 560px; margin: 0 auto; }
.contact-title { font-size: clamp(28px, 4vw, 40px); }
.contact-sub { margin-top: 14px; color: var(--ink-2); font-size: 16px; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 28px; }
.contact-mail { margin-top: 24px; font-family: var(--font-mono); font-size: 16px; color: var(--brand); }

/* ---------- 博客列表页 ---------- */
.page-head { padding: 120px 0 40px; }
.page-title { font-size: clamp(32px, 5vw, 48px); letter-spacing: -0.02em; }
.page-lead { margin-top: 12px; color: var(--ink-2); }
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; padding-bottom: 80px; }
.post-card { display: flex; flex-direction: column; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 26px; color: var(--ink); box-shadow: var(--shadow-card); transition: transform .18s, border-color .18s; }
.post-card:hover { transform: translateY(-4px); border-color: var(--brand-soft); color: var(--ink); }
.post-card-date { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.post-card h3 { font-size: 20px; }
.post-card p { font-size: 14px; color: var(--ink-2); }
.post-card .more { margin-top: auto; font-weight: 600; font-size: 14px; color: var(--brand); }
.empty-card { background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius-card); padding: 44px 24px; text-align: center; color: var(--ink-2); }
.blog-more { margin-top: 28px; }

/* ---------- 文章页 ---------- */
.post { padding: 120px 0 80px; }
.post-container { max-width: 720px; }
.post-header { margin-bottom: 40px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.back-link { font-size: 14px; color: var(--ink-3); display: inline-block; margin-bottom: 20px; }
.back-link:hover { color: var(--brand-strong); }
.post-title { font-size: clamp(30px, 5vw, 44px); letter-spacing: -0.02em; }
.post-meta { margin-top: 16px; display: flex; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 13px; color: var(--ink-3); }
.post-tag { padding: 2px 8px; border-radius: 6px; background: var(--brand-tint); color: var(--brand); border: 1px solid var(--brand-soft); }
.post-body { font-size: 17px; line-height: 1.8; color: var(--ink); }
.post-body h2 { font-size: 26px; margin: 40px 0 16px; }
.post-body h3 { font-size: 21px; margin: 32px 0 12px; }
.post-body p { margin: 0 0 20px; }
.post-body ul, .post-body ol { margin: 0 0 20px; padding-left: 24px; }
.post-body li { margin-bottom: 8px; }
.post-body a { text-decoration: underline; text-underline-offset: 2px; }
.post-body blockquote { margin: 24px 0; padding: 16px 20px; border-left: 3px solid var(--brand); background: var(--card); border-radius: 0 var(--radius-ctrl) var(--radius-ctrl) 0; color: var(--ink-2); }
.post-body code { font-family: var(--font-mono); font-size: .9em; background: var(--card-2); padding: 2px 6px; border-radius: 6px; color: var(--accent); }
.post-body pre { background: var(--card-2); padding: 20px; border-radius: var(--radius-card); overflow-x: auto; }
.post-body pre code { background: none; padding: 0; color: var(--ink); }
.post-footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }

/* ---------- 右侧分区导航 ---------- */
.dot-nav { position: fixed; right: 20px; top: 50%; transform: translateY(-50%); z-index: 90; display: flex; flex-direction: column; gap: 14px; }
.dot-nav a { width: 10px; height: 10px; border-radius: 50%; background: var(--ink-3); opacity: .5; transition: opacity .2s, background .2s, transform .2s; position: relative; }
.dot-nav a.active { background: var(--brand); opacity: 1; transform: scale(1.35); }
.dot-nav a:hover { opacity: 1; }

/* ---------- 页脚 ---------- */
.site-main { position: relative; z-index: 1; }
.site-footer { position: relative; z-index: 1; border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.footer-note { font-size: 14px; color: var(--ink-3); }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { font-size: 14px; color: var(--ink-2); }
.footer-links a:hover { color: var(--brand-strong); }

/* ============ 视觉丰富化 ============ */
/* 滚动渐入 */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* 金色渐层文字（流动 shimmer） */
.gold-text { background: linear-gradient(120deg, var(--brand) 0%, var(--brand-strong) 40%, #fff3d6 50%, var(--brand-strong) 60%, var(--brand) 100%); background-size: 200% auto; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; animation: goldShimmer 6s linear infinite; }
@keyframes goldShimmer { to { background-position: -200% center; } }

/* 卡片 hover 炫光扫过 + 发光 */
.project-card, .post-card { position: relative; overflow: hidden; }
.project-card::before, .post-card::before { content: ""; position: absolute; top: 0; left: -80%; width: 60%; height: 100%; background: linear-gradient(105deg, transparent, rgba(245,195,75,.16), transparent); transform: skewX(-20deg); transition: left .6s ease; pointer-events: none; z-index: 0; }
.project-card:hover::before, .post-card:hover::before { left: 130%; }
.project-card:hover, .post-card:hover { border-color: var(--brand-soft); box-shadow: 0 0 0 1px rgba(245,166,35,.3), 0 16px 40px -14px rgba(245,166,35,.35); }
.project-card > *, .post-card > * { position: relative; z-index: 1; }

/* 技能条发光 */
.skill-fill { box-shadow: 0 0 14px rgba(245,166,35,.5), 0 0 4px rgba(245,166,35,.8); }

/* 首屏状态徽章（脉冲绿点） */
.hero-status { display: inline-flex; align-items: center; gap: 9px; margin-top: 22px; padding: 7px 16px; border-radius: 999px; border: 1px solid rgba(245,166,35,.35); background: var(--brand-tint); font-family: var(--font-mono); font-size: 13px; color: var(--ink-2); }
.hero-status .pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: #35d17a; animation: pulseRing 2s infinite; }
@keyframes pulseRing { 0% { box-shadow: 0 0 0 0 rgba(53,209,122,.55); } 70% { box-shadow: 0 0 0 8px rgba(53,209,122,0); } 100% { box-shadow: 0 0 0 0 rgba(53,209,122,0); } }

/* 数据统计条 */
.stats-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.stat-item { text-align: center; padding: 22px 16px; border-radius: var(--radius-card); background: var(--card); border: 1px solid var(--line); }
.stat-num { font-family: var(--font-display); font-size: 34px; font-weight: 700; color: var(--brand); }
.stat-label { margin-top: 6px; font-size: 13px; color: var(--ink-3); }

/* 分区金色分隔线 */
.section-head { position: relative; padding-bottom: 18px; }
.section-head::after { content: ""; position: absolute; left: 0; bottom: 0; width: 60px; height: 3px; border-radius: 999px; background: linear-gradient(90deg, var(--brand), transparent); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .dot-nav { display: none; }
}
@media (max-width: 768px) {
  .header-inner { height: 60px; }
  .site-header { height: 60px; }
  .brand-text { display: none; }
  .nav-link { padding: 8px 9px; font-size: 13px; }
  .section { padding: 64px 0; }
  .hero { min-height: auto; padding: 120px 0 80px; }
  .project-grid, .post-grid, .skill-grid { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr; }
  .post { padding: 96px 0 56px; }
  .page-head { padding: 96px 0 32px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}