/* ============================================================
   液态玻璃个人站 · 样式
   主题变量由 js/main.js 根据 data.json 动态写入
   ============================================================ */

:root {
  --radius: 24px;
  --glass-alpha: 0.6;      /* 后台「玻璃浓度」滑杆 /100 */
  --hero-scale: 1;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-weight: 800;
  --font-tracking: -0.045em;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --z-bg: 0; --z-fx: 1; --z-noise: 2; --z-ui: 3; --z-nav: 20;
}

/*
 * 字体气质（后台可切换，配 Google Fonts 真实差异化字体）
 * 现代几何 = Outfit；圆润友好 = Nunito；锐利极简 = Archivo
 * 中文统一回落到 Noto Sans SC（含多字重），避免三档切换毫无视觉差别
 */
body[data-font="modern"]  { --font: "Outfit", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif; --font-weight: 800; --font-tracking: -0.045em; }
body[data-font="rounded"] { --font: "Nunito", "Noto Sans SC", "SF Pro Rounded", "PingFang SC", "Hiragino Maru Gothic ProN", "Microsoft YaHei", sans-serif; --font-weight: 800; --font-tracking: -0.02em; }
body[data-font="sharp"]   { --font: "Archivo", "Noto Sans SC", "Avenir Next", "Futura", "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif; --font-weight: 800; --font-tracking: -0.06em; }

/* ---------- 调色板（后台可选） ---------- */
body[data-palette="aurora"] {
  --bg: #070b16;
  --blob1: #0ea5e9; --blob2: #14b8a6; --blob3: #4f46e5;
  --accent: #22d3ee; --accent2: #818cf8;
  --text: #e8edf7; --muted: #94a1b8;
  --line: rgba(255, 255, 255, 0.12);
  --glass: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.09));
  --glass-strong: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.14));
  --shadow: 0 10px 40px rgba(2, 6, 23, 0.5);
}
body[data-palette="sunset"] {
  --bg: #140b10;
  --blob1: #f59e0b; --blob2: #f43f5e; --blob3: #a855f7;
  --accent: #fb923c; --accent2: #f472b6;
  --text: #f7ede6; --muted: #b39d94;
  --line: rgba(255, 235, 220, 0.14);
  --glass: rgba(255, 240, 230, calc(var(--glass-alpha) * 0.08));
  --glass-strong: rgba(255, 240, 230, calc(var(--glass-alpha) * 0.13));
  --shadow: 0 10px 40px rgba(30, 8, 15, 0.5);
}
body[data-palette="prisma"] {
  --bg: #0a0a14;
  --blob1: #22d3ee; --blob2: #a78bfa; --blob3: #f472b6;
  --accent: #a78bfa; --accent2: #22d3ee;
  --text: #ecebf7; --muted: #9d9ab5;
  --line: rgba(255, 255, 255, 0.13);
  --glass: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.09));
  --glass-strong: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.14));
  --shadow: 0 10px 40px rgba(5, 5, 16, 0.5);
}
body[data-palette="morning"] {
  --bg: #eef2f8;
  --blob1: #93c5fd; --blob2: #6ee7b7; --blob3: #f9a8d4;
  --accent: #0284c7; --accent2: #7c3aed;
  --text: #1b2333; --muted: #5d6b82;
  --line: rgba(27, 35, 51, 0.1);
  --glass: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.75));
  --glass-strong: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.9));
  --shadow: 0 10px 36px rgba(27, 35, 51, 0.12);
}

/* 浅色切换（在任意调色板上叠加） */
body.light {
  --bg: #eef2f8;
  --text: #1b2333; --muted: #5d6b82;
  --line: rgba(27, 35, 51, 0.1);
  --glass: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.72));
  --glass-strong: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.88));
  --shadow: 0 10px 36px rgba(27, 35, 51, 0.12);
}
body.light .blob { opacity: 0.32; }
body.light #fxCanvas { opacity: 0.5; }

/* 自定义颜色模式下，背景较亮时自动切换为深色文字 */
body.custom-light {
  --text: #1b2333; --muted: #5d6b82;
  --line: rgba(27, 35, 51, 0.1);
  --glass: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.72));
  --glass-strong: rgba(255, 255, 255, calc(var(--glass-alpha) * 0.88));
  --shadow: 0 10px 36px rgba(27, 35, 51, 0.12);
}
body.custom-light .blob { opacity: calc(var(--blob-opacity, 0.5) * 0.6); }
body.custom-light #fxCanvas { opacity: 0.5; }

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.6s var(--ease), color 0.6s var(--ease);
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }

/* ---------- 彩色背景层（给液态玻璃「弯折」用的高对比度内容）---------- */
/* 不加 backdrop-filter，仅做颜色——这就是要被玻璃弯折的「背景」。 */
.bg-wallpaper {
  position: fixed; inset: 0; z-index: var(--z-bg); pointer-events: none;
  overflow: hidden; filter: saturate(1.15);
}
.wp { position: absolute; border-radius: 36px; opacity: 0.85; }
.wp-1 { left: -10vw; top: -8vh; width: 50vw; height: 50vh; background: linear-gradient(135deg, color-mix(in srgb, var(--blob1, #0ea5e9) 75%, transparent), color-mix(in srgb, var(--blob2, #14b8a6) 75%, transparent)); filter: blur(8px); border-radius: 80px; }
.wp-2 { right: -8vw; top: 18vh; width: 38vw; height: 38vh; background: linear-gradient(135deg, color-mix(in srgb, var(--blob2, #14b8a6) 75%, transparent), color-mix(in srgb, var(--blob3, #4f46e5) 75%, transparent)); filter: blur(8px); border-radius: 60px; }
.wp-3 { left: 30vw; bottom: -20vh; width: 44vw; height: 44vh; background: linear-gradient(135deg, color-mix(in srgb, var(--blob3, #4f46e5) 75%, transparent), var(--accent, #818cf8)); filter: blur(8px); border-radius: 70px; }
.wp-4 { right: 18vw; top: 56vh; width: 22vw; height: 22vh; background: var(--accent2, #818cf8); filter: blur(6px); opacity: 0.65; border-radius: 60px; }
.wp-5 { left: 8vw; top: 52vh; width: 14vw; height: 14vh; background: var(--accent, #22d3ee); filter: blur(4px); opacity: 0.6; border-radius: 50px; }
.wp-6 { right: 4vw; bottom: 12vh; width: 20vw; height: 20vh; background: linear-gradient(45deg, var(--blob2, #14b8a6), var(--blob3, #4f46e5)); filter: blur(10px); opacity: 0.55; border-radius: 70px; }
.wp-7 { left: 44vw; top: 4vh; width: 8vw; height: 8vh; background: var(--blob1, #0ea5e9); filter: blur(0px); opacity: 0.85; border-radius: 50%; }
.wp-8 { right: 42vw; top: 72vh; width: 10vw; height: 10vh; background: var(--accent2, #818cf8); filter: blur(0px); opacity: 0.55; border-radius: 50%; }

body[data-anim] .wp-1 { animation: drift1 calc(28s / var(--speed, 1)) ease-in-out infinite alternate; }
body[data-anim] .wp-2 { animation: drift2 calc(34s / var(--speed, 1)) ease-in-out infinite alternate; }
body[data-anim] .wp-3 { animation: drift3 calc(40s / var(--speed, 1)) ease-in-out infinite alternate; }
body[data-anim] .wp-4 { animation: drift1 calc(30s / var(--speed, 1)) ease-in-out infinite alternate-reverse; }
body[data-anim] .wp-5 { animation: drift2 calc(36s / var(--speed, 1)) ease-in-out infinite alternate-reverse; }
body[data-anim] .wp-6 { animation: drift3 calc(42s / var(--speed, 1)) ease-in-out infinite alternate-reverse; }

body.light .bg-wallpaper { opacity: 0.45; }
body.custom-light .bg-wallpaper { opacity: 0.45; }

/* ---------- 背景层 ---------- */
.bg-blobs { position: fixed; inset: 0; z-index: 1; overflow: hidden; pointer-events: none; opacity: 0.4; }
.blob {
  position: absolute; border-radius: 50%;
  filter: blur(var(--blob-blur, 90px)); opacity: var(--blob-opacity, 0.5); will-change: transform;
  transition: opacity 0.6s var(--ease);
}
.b1 { width: 46vw; height: 46vw; left: -12vw; top: -14vw; background: var(--blob1); }
.b2 { width: 38vw; height: 38vw; right: -10vw; top: 22vh; background: var(--blob2); }
.b3 { width: 42vw; height: 42vw; left: 24vw; bottom: -20vw; background: var(--blob3); }
body[data-anim] .b1 { animation: drift1 calc(22s / var(--speed, 1)) ease-in-out infinite alternate; }
body[data-anim] .b2 { animation: drift2 calc(26s / var(--speed, 1)) ease-in-out infinite alternate; }
body[data-anim] .b3 { animation: drift3 calc(30s / var(--speed, 1)) ease-in-out infinite alternate; }
@keyframes drift1 { to { transform: translate(9vw, 7vh) scale(1.12); } }
@keyframes drift2 { to { transform: translate(-7vw, -6vh) scale(0.92); } }
@keyframes drift3 { to { transform: translate(-5vw, -9vh) scale(1.08); } }

#fxCanvas { position: fixed; inset: 0; z-index: var(--z-fx); pointer-events: none; }
.noise {
  position: fixed; inset: 0; z-index: var(--z-noise); pointer-events: none; opacity: var(--noise-opacity, 0.05);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}
body.noise-off .noise { display: none; }
.cursor-glow {
  position: fixed; width: 520px; height: 520px; border-radius: 50%;
  z-index: var(--z-fx); pointer-events: none; opacity: 0;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 13%, transparent), transparent 62%);
  transition: opacity 0.5s var(--ease);
}
body.glow-on .cursor-glow { opacity: 1; }

/* ---------- Liquid Glass（苹果质感镜片体系）----------
   「液度」--lg：0 = 普通毛玻璃（平铺模糊，无折射高光），1 = 液态玻璃（最强折射 + 镜面高光）。
   所有折射/高光/亮缘参数都随 --lg 线性过渡，可在后台用滑杆连续调节。
   白边修复：移除过亮的 1px 外环与 ::after 环形渐变亮缘（原 0.55/0.34 高光叠加过头），
   改为极柔的低透明度边缘折射，让边缘过渡自然、贴合 iOS 观感。 */
.lg {
  position: relative;
  isolation: isolate;
  border: none;
  border-radius: var(--radius);
  /* 阴影随液度线性：液态玻璃影子更实，毛玻璃更淡 */
  --lg: var(--lg-level, 1);
  /* 背景乳白度随「玻璃浓度」+ 液度变化：毛玻璃端额外加白（更毛），液态端更清透 */
  background: color-mix(in srgb, rgba(255,255,255, var(--glass-tint, 0.05)) calc(var(--glass-strength, 0.6) * (0.7 + 0.6 * (1 - var(--lg))) * 100%), transparent);
  box-shadow:
    0 14px 44px rgba(0, 0, 0, calc((0.18 + 0.18 * var(--lg)) * var(--glass-alpha, 0.6) / 0.6)),
    /* 边缘折射亮环：低透明度，随液度增强（替代原先过亮的 1px 外环） */
    0 0 0 1px color-mix(in srgb, var(--accent) calc(6% * var(--lg)), rgba(255, 255, 255, calc(0.06 + 0.08 * var(--lg)))),
    /* 折射暗缝：玻璃厚度暗边，随液度增强 */
    inset 0 0 0 1px rgba(10, 15, 30, calc(0.05 + 0.09 * var(--lg))),
    /* 内亮环：折射光内缘汇聚，柔和 */
    inset 0 0 0 2px rgba(255, 255, 255, calc(0.03 + 0.05 * var(--lg))),
    /* 凸面高光：顶部最强向下衰减，随液度增强 */
    inset 0 2px 10px rgba(255, 255, 255, calc((0.08 + 0.16 * var(--lg)) * var(--lg-shine, 1))),
    inset 0 12px 32px -12px rgba(255, 255, 255, calc((0.05 + 0.1 * var(--lg)) * var(--lg-shine, 1))),
    /* 底部反光 */
    inset 0 -2px 14px rgba(255, 255, 255, calc((0.03 + 0.05 * var(--lg)) * var(--lg-shine, 1))),
    inset 0 -14px 30px -18px color-mix(in srgb, var(--accent) calc(6% + 12% * var(--lg)), transparent);
  /* 模糊半径随液度 + 玻璃浓度变化：
     液度 0（毛玻璃）→ 模糊放大到 1.35 倍并叠加乳白，厚重磨砂；
     液度 1（液态玻璃）→ 模糊收敛到 0.45 倍，中心通透靠折射。 */
  -webkit-backdrop-filter: blur(calc(var(--blur, 22px) * var(--glass-strength, 0.55) * (0.45 + 0.9 * (1 - var(--lg))))) saturate(calc(150% + 30% * var(--lg))) brightness(calc(1 + 0.06 * var(--lg)));
  backdrop-filter: blur(calc(var(--blur, 22px) * var(--glass-strength, 0.55) * (0.45 + 0.9 * (1 - var(--lg))))) saturate(calc(150% + 30% * var(--lg))) brightness(calc(1 + 0.06 * var(--lg)));
}
/* 镜面高光层：左上弧形扫光，随液度增强（毛玻璃时淡化为无） */
.lg::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  border-radius: inherit; pointer-events: none;
  background:
    linear-gradient(115deg,
      rgba(255, 255, 255, calc(0.10 * var(--lg, 1) * var(--lg-shine, 1))) 0%,
      rgba(255, 255, 255, calc(0.04 * var(--lg, 1) * var(--lg-shine, 1))) 18%,
      transparent 42%,
      transparent 72%,
      rgba(255, 255, 255, calc(0.03 * var(--lg, 1) * var(--lg-shine, 1))) 100%);
  mix-blend-mode: screen;
}
/* 折射亮缘：极柔的顶部镜面线 + 底部折射弧（原过亮，已大幅压暗） */
.lg::after {
  content: ""; position: absolute; inset: 0; z-index: 0;
  border-radius: inherit; pointer-events: none;
  padding: 1px;
  background: linear-gradient(160deg,
    rgba(255, 255, 255, calc(0.14 * var(--lg, 1) * var(--lg-shine, 1))) 0%,
    rgba(255, 255, 255, calc(0.04 * var(--lg, 1) * var(--lg-shine, 1))) 22%,
    rgba(255, 255, 255, 0) 46%,
    rgba(255, 255, 255, calc(0.04 * var(--lg, 1) * var(--lg-shine, 1))) 78%,
    rgba(255, 255, 255, calc(0.10 * var(--lg, 1) * var(--lg-shine, 1))) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}

/* 深浅色与自定义亮色下的折射参数微调（同样随液度，柔和化） */
body.light .lg, body.custom-light .lg {
  box-shadow:
    0 14px 40px rgba(27, 35, 51, 0.14),
    0 0 0 1px rgba(255, 255, 255, calc(0.18 + 0.2 * var(--lg, 1))),
    inset 0 0 0 1px rgba(27, 35, 51, calc(0.02 + 0.03 * var(--lg, 1))),
    inset 0 0 0 2px rgba(255, 255, 255, calc(0.18 + 0.24 * var(--lg, 1))),
    inset 0 2px 10px rgba(255, 255, 255, calc(0.3 + 0.34 * var(--lg, 1))),
    inset 0 12px 32px -12px rgba(255, 255, 255, calc(0.2 + 0.26 * var(--lg, 1))),
    inset 0 -2px 14px rgba(255, 255, 255, calc(0.12 + 0.16 * var(--lg, 1))),
    inset 0 -14px 30px -18px color-mix(in srgb, var(--accent) calc(6% + 10% * var(--lg, 1)), transparent);
}

/* ---------- 玻璃基底（旧类保留兼容） ---------- */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(var(--blur, 22px)) saturate(160%);
  backdrop-filter: blur(var(--blur, 22px)) saturate(160%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.14), inset 0 -1px 0 rgba(255, 255, 255, 0.04);
  border-radius: var(--radius);
}

/* ---------- 导航（液态玻璃胶囊镜片） ---------- */
.nav {
  position: fixed; top: 18px; left: 50%; transform: translateX(-50%);
  z-index: var(--z-nav, 20); display: flex; align-items: center; gap: 6px;
  padding: 9px 12px 9px 18px; border-radius: 999px; width: max-content; max-width: calc(100vw - 32px);
  --lg-shine: 1.15; /* 导航是视觉焦点，折射高光更强 */
}
.brand { font-weight: 800; font-size: 1.05rem; letter-spacing: 0.02em; margin-right: 10px; }
.nav-links { display: flex; gap: 2px; }
.nav-links a {
  padding: 7px 13px; border-radius: 999px; font-size: 0.88rem; color: var(--muted);
  transition: color 0.25s, background 0.25s;
}
.nav-links a:hover { color: var(--text); background: var(--glass-strong); }
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: 8px; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 50%; border: none;
  background: var(--glass-strong); color: var(--text); cursor: pointer;
  display: grid; place-items: center;
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.2),
    inset 0 0 0 1px rgba(10, 15, 30, 0.12),
    inset 0 1px 3px rgba(255, 255, 255, 0.35),
    inset 0 -1px 4px rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(8px) saturate(170%); backdrop-filter: blur(8px) saturate(170%);
  transition: transform 0.25s var(--ease), background 0.25s;
}
.icon-btn:hover { transform: scale(1.08); background: var(--glass-strong); }
.icon-btn svg { width: 17px; height: 17px; }
body:not(.light) .ic-sun { display: none; }
body.light .ic-moon { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px; font-size: 0.92rem; font-weight: 600;
  border: none; cursor: pointer; transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(0.97); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #07121f;
  box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 35%, transparent);
}
/* 液态玻璃按钮：小镜片（凸面折射 + 镜面高光，与卡片同体系） */
.btn.glass-btn {
  --lg-shine: 1.1;
  position: relative; isolation: isolate;
  background: var(--glass-strong);
  color: var(--text);
  border: none;
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.22),
    0 0 0 1px color-mix(in srgb, var(--accent) 14%, rgba(255, 255, 255, 0.25)),
    inset 0 0 0 1px rgba(10, 15, 30, 0.14),
    inset 0 0 0 2px rgba(255, 255, 255, 0.14),
    inset 0 2px 8px rgba(255, 255, 255, 0.38),
    inset 0 -2px 10px rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(10px) saturate(170%) brightness(1.08);
  backdrop-filter: blur(10px) saturate(170%) brightness(1.08);
}
.btn.glass-btn::before {
  content: ""; position: absolute; inset: 0; z-index: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(115deg, rgba(255,255,255,0.32) 0%, rgba(255,255,255,0.1) 22%, transparent 48%);
  mix-blend-mode: screen;
}
.btn.glass-btn > * { position: relative; z-index: 1; }
.btn.btn-sm { padding: 7px 15px; font-size: 0.84rem; }
.btn .arr { transition: transform 0.3s var(--ease); }
.btn:hover .arr { transform: translate(2px, -2px); }
.btn .arr svg { width: 15px; height: 15px; }
.project-top > svg { width: 17px; height: 17px; color: var(--muted); flex: none; }

/* ---------- 布局 ---------- */
main { position: relative; z-index: var(--z-ui); }
.section { max-width: 1080px; margin: 0 auto; padding: 96px 24px 12px; scroll-margin-top: 90px; }
.section-head { margin-bottom: 34px; }
.section-title { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: var(--font-weight, 800); letter-spacing: calc(var(--font-tracking, -0.045em) * 0.5); display: flex; align-items: center; gap: 14px; }
.section-title::before { content: ""; width: 26px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--accent2)); flex: none; }
.section-sub { color: var(--muted); margin-top: 10px; font-size: 0.95rem; }

.loading {
  max-width: 320px; margin: 40vh auto 0; padding: 28px; text-align: center; color: var(--muted);
}
.spinner {
  width: 34px; height: 34px; margin: 0 auto 14px; border-radius: 50%;
  border: 3px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Hero ---------- */
.hero {
  min-height: 100dvh; display: flex; align-items: center;
  max-width: 1080px; margin: 0 auto; padding: 120px 24px 60px; position: relative;
  scroll-margin-top: 0;
}
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: center; width: 100%; }
.hero-eyebrow { color: var(--muted); letter-spacing: 0.28em; font-size: 0.82rem; text-transform: uppercase; margin-bottom: 18px; }
.hero-name {
  font-size: calc(clamp(3.4rem, 9vw, 6.8rem) * var(--hero-scale));
  font-weight: var(--font-weight, 800);
  letter-spacing: var(--font-tracking, -0.045em);
  line-height: 1.02;
}
.hero-role { margin-top: 20px; }
.chip {
  display: inline-block; padding: 7px 15px; border-radius: 999px;
  position: relative; isolation: isolate;
  background: var(--glass-strong);
  font-size: 0.88rem; color: var(--text);
  box-shadow:
    0 3px 12px rgba(0, 0, 0, 0.18),
    inset 0 0 0 1px rgba(10, 15, 30, 0.1),
    inset 0 1px 4px rgba(255, 255, 255, 0.3),
    inset 0 -1px 5px rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(8px) saturate(170%); backdrop-filter: blur(8px) saturate(170%);
}
.hero-tagline { margin-top: 18px; font-size: 1.15rem; color: var(--muted); min-height: 1.7em; }
.hero-tagline .caret { display: inline-block; width: 2px; height: 1.1em; background: var(--accent); margin-left: 3px; vertical-align: -0.15em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-card {
  padding: 30px; display: grid; place-items: center; gap: 16px; text-align: center;
  position: relative; overflow: hidden;
}
.hero-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 20% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 55%);
  pointer-events: none;
}
.avatar {
  width: 128px; height: 128px; border-radius: 36px; overflow: hidden;
  display: grid; place-items: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 45%, transparent), color-mix(in srgb, var(--accent2) 45%, transparent));
  border: none;
  box-shadow:
    0 12px 34px color-mix(in srgb, var(--accent) 30%, transparent),
    0 0 0 1px rgba(255, 255, 255, 0.3),
    inset 0 0 0 1px rgba(10, 15, 30, 0.12),
    inset 0 2px 8px rgba(255, 255, 255, 0.42),
    inset 0 -6px 16px rgba(255, 255, 255, 0.14);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar span { font-size: 3rem; font-weight: 800; color: rgba(255, 255, 255, 0.95); text-shadow: 0 2px 12px rgba(0,0,0,0.18); }
.hero-card .loc { color: var(--muted); font-size: 0.9rem; display: flex; align-items: center; gap: 6px; }
.hero-card .loc svg { width: 14px; height: 14px; }
.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  color: var(--muted); animation: hint calc(2.2s / var(--speed, 1)) ease-in-out infinite;
}
.scroll-hint svg { width: 22px; height: 22px; }
@keyframes hint { 0%, 100% { transform: translate(-50%, 0); opacity: 0.55; } 50% { transform: translate(-50%, 8px); opacity: 1; } }
body:not([data-anim]) .scroll-hint { animation: none; }

/* ---------- 卡片通用 ---------- */
.card { padding: 26px; position: relative; overflow: hidden; transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s; }
.card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); box-shadow: var(--shadow), 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent), inset 0 1px 0 rgba(255,255,255,0.18); }
body[data-tilt] .tilt { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); }
.card-spot { position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.4s;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 12%, transparent), transparent 65%); }
.card:hover .card-spot { opacity: 1; }

/* ---------- 关于 ---------- */
.about-card { display: flex; gap: 28px; align-items: flex-start; }
.about-card .avatar { width: 108px; height: 108px; flex: none; border-radius: 30px; }
.about-text p { line-height: 1.85; color: var(--text); font-size: 1.02rem; max-width: 62ch; }
.about-tags { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- 技能 ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.skill-row { display: grid; gap: 9px; }
.skill-top { display: flex; justify-content: space-between; font-size: 0.94rem; }
.skill-top b { font-weight: 600; }
.skill-top span { color: var(--muted); font-variant-numeric: tabular-nums; }
.skill-track { height: 9px; border-radius: 999px; background: var(--glass-strong); border: 1px solid var(--line); overflow: hidden; }
.skill-fill {
  height: 100%; border-radius: 999px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 45%, transparent);
  transition: width 1.2s var(--ease);
}
body[data-anim] .skill-fill.in { animation: shimmer calc(2.6s / var(--speed, 1)) ease-in-out infinite; }
@keyframes shimmer { 50% { filter: brightness(1.25); } }

/* ---------- 项目 ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.project-card { display: flex; flex-direction: column; gap: 12px; min-height: 190px; }
.project-top { display: flex; justify-content: space-between; align-items: center; }
.project-tag { font-size: 0.76rem; color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); padding: 4px 11px; border-radius: 999px; letter-spacing: 0.04em; }
.project-card h3 { font-size: 1.18rem; font-weight: 700; letter-spacing: -0.01em; }
.project-card p { color: var(--muted); line-height: 1.7; font-size: 0.93rem; flex: 1; }
.project-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; font-weight: 600; color: var(--accent); }
.project-link svg { width: 15px; height: 15px; }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 30px; max-width: 720px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), var(--accent2), transparent); opacity: 0.5; }
.tl-item { position: relative; padding: 0 0 34px 18px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute; left: -30px; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--glass-strong); border: 1px solid var(--line);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 14%, transparent), inset 0 1px 0 rgba(255,255,255,0.3);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.tl-year { font-size: 0.8rem; color: var(--accent); font-weight: 700; letter-spacing: 0.12em; }
.tl-item h3 { margin: 6px 0 6px; font-size: 1.08rem; font-weight: 700; }
.tl-item p { color: var(--muted); line-height: 1.7; font-size: 0.93rem; }

/* ---------- 联系 ---------- */
.contact-card { padding: 40px; display: grid; gap: 26px; text-align: center; }
.contact-card h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; letter-spacing: -0.02em; }
.contact-rows { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.contact-row {
  display: inline-flex; align-items: center; gap: 10px; padding: 11px 18px; border-radius: 999px;
  position: relative; isolation: isolate;
  background: var(--glass-strong); font-size: 0.92rem;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.2),
    inset 0 0 0 1px rgba(10, 15, 30, 0.1),
    inset 0 1px 5px rgba(255, 255, 255, 0.32),
    inset 0 -1px 6px rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px) saturate(170%); backdrop-filter: blur(10px) saturate(170%);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.contact-row:hover { transform: translateY(-2px); box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.28),
    0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent),
    inset 0 0 0 1px rgba(10, 15, 30, 0.1),
    inset 0 1px 5px rgba(255, 255, 255, 0.4),
    inset 0 -1px 6px rgba(255, 255, 255, 0.12); }
.contact-row svg { width: 16px; height: 16px; color: var(--accent); }
.contact-row span { color: var(--muted); }

/* ---------- 页脚 ---------- */
footer { position: relative; z-index: var(--z-ui); text-align: center; padding: 60px 24px 44px; color: var(--muted); font-size: 0.86rem; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(var(--reveal-distance, 26px)); transition: opacity calc(0.8s / var(--speed, 1)) var(--ease), transform calc(0.8s / var(--speed, 1)) var(--ease); transition-delay: calc(var(--i, 0) * var(--stagger, 90ms)); }
.reveal.in { opacity: 1; transform: none; }
body[data-reveal-off] .reveal { opacity: 1; transform: none; transition: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 移动端 ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero { padding-top: 110px; }
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-card { max-width: 340px; margin: 0 auto; padding: 24px; }
  .hero-card .avatar { width: 96px; height: 96px; }
  .about-card { flex-direction: column; }
  .section { padding: 72px 20px 8px; }
  .contact-card { padding: 28px 20px; }
}