/* ===== 365Lab简历 · 共享基础样式 (Base) ===== */

/* 文档级配色方案：使滚动条/复选框/日期选择器等原生控件匹配主题 */
:root[data-theme="dark"] { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

/* 防止移动端浏览器对页面文本做自动字号缩放（iOS Safari） */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

:root {
  --primary: #6d5cf6;
  --primary-2: #4f46e5;
  --grad: linear-gradient(120deg, #7c3aed 0%, #4f46e5 38%, #06b6d4 100%);
  --grad-h: linear-gradient(90deg, #7c3aed 0%, #4f46e5 28%, #06b6d4 50%, #4f46e5 72%, #7c3aed 100%);
  --grad-soft: linear-gradient(120deg, #a78bfa 0%, #818cf8 50%, #67e8f9 100%);
  --accent: #6d5cf6;
  --color-accent: var(--primary);

  --bg: #f6f7fb;
  --bg-2: #eef0f8;
  --panel: rgba(255,255,255,.82);
  --panel-solid: #ffffff;
  --border: #e4e7f0;
  --text: #161a2b;
  --text-soft: #4f566b;
  --muted: #6b7280;
  --shadow-sm: 0 1px 2px rgba(20,24,50,.06), 0 6px 18px rgba(20,24,50,.06);
  --shadow: 0 10px 40px rgba(40,30,120,.12);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 64px;
  --maxw: 1180px;
  --danger: #e11d48;
  --success: #10b981;
  --warning: #f59e0b;
  --warn: var(--warning);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
  --bg: #070713;
  --bg-2: #0c0c1c;
  --panel: rgba(20,22,40,.72);
  --panel-solid: #14162a;
  --border: #262a44;
  --text: #eef0fb;
  --text-soft: #b9bee0;
  --muted: #7e85a8;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  --shadow: 0 16px 50px rgba(0,0,0,.5);
  --grad: linear-gradient(120deg, #a78bfa 0%, #7c3aed 40%, #22d3ee 100%);
  --grad-h: linear-gradient(90deg, #a78bfa 0%, #7c3aed 28%, #22d3ee 50%, #7c3aed 72%, #a78bfa 100%);
  --grad-soft: linear-gradient(120deg, #c4b5fd 0%, #a78bfa 50%, #67e8f9 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { overflow-x: clip;
  margin: 0; padding: 0;
  font-family: var(--font);
  background:
    radial-gradient(900px 600px at 0% -10%, color-mix(in srgb, var(--primary) 7%, transparent), transparent 55%),
    radial-gradient(800px 500px at 100% 0%, color-mix(in srgb, #06b6d4 5%, transparent), transparent 55%),
    var(--bg);
  color: var(--text);
  font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }

a { color: inherit; text-decoration: none; }
.aurora {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
  background: radial-gradient(700px 400px at 85% -10%, color-mix(in srgb, var(--primary) 10%, transparent), transparent 60%);
}
.aurora::after {
  content: ""; position: absolute; top: -120px; right: -80px; width: 420px; height: 420px;
  background: var(--grad-soft); opacity: .12; border-radius: 50%; filter: blur(40px);
  animation: auroraFloat 18s ease-in-out infinite;
}
@keyframes auroraFloat { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-40px,30px) scale(1.1); } }
@media (prefers-reduced-motion: reduce) { .aurora::after { animation: none; } }
/* Save-data mode: skip the decorative aurora animation (CPU/bandwidth) */
@media (prefers-reduced-data: reduce) { .aurora::after { animation: none; } }
img, svg { display: block; }
h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -.01em; }
p { margin: 0; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--primary); color: #fff; padding: 10px 16px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; top: 0; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 60;
  height: var(--header-h);
  background: color-mix(in srgb, var(--panel-solid) 70%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
}
.header-inner {
  max-width: var(--maxw); height: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; }
.brand:hover { text-decoration: none; }
.brand .logo-mark { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 4px 14px rgba(99,102,241,.45); }
.brand-name { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.header-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.header-nav a.navlink {
  padding: 8px 12px; border-radius: 9px; color: var(--text-soft); font-weight: 600; font-size: 14.5px;
  transition: background .15s, color .15s;
}
.header-nav a.navlink:hover { background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); }
.header-actions {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 5px;
  background: color-mix(in srgb, var(--primary) 7%, var(--panel-solid));
  border: 1px solid color-mix(in srgb, var(--primary) 14%, var(--border));
  border-radius: 999px;
  box-shadow: inset 0 1px 2px rgba(255,255,255,.35), 0 2px 6px rgba(99,102,241,.08);
}
[data-theme="dark"] .header-actions {
  background: color-mix(in srgb, var(--primary) 12%, var(--panel-solid));
  border-color: color-mix(in srgb, var(--primary) 22%, var(--border));
  box-shadow: inset 0 1px 2px rgba(255,255,255,.06), 0 2px 6px rgba(0,0,0,.18);
}
.header-actions .btn-ghost {
  padding: 6px 12px; border-radius: 999px;
  font-size: 13.5px; font-weight: 700;
  color: var(--text-soft);
}
.header-actions .btn-ghost:hover {
  background: color-mix(in srgb, var(--primary) 14%, transparent);
  color: var(--primary);
}
.header-actions #btn-theme.icon-btn {
  padding: 6px 9px; border-radius: 50%;
  width: 30px; height: 30px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; cursor: pointer; font: inherit; font-weight: 700;
  border-radius: 11px; padding: 10px 18px; transition: transform .15s, box-shadow .2s, background .2s, color .2s, border-color .2s;
  white-space: nowrap; line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--text-soft); border-color: transparent; }
.btn-ghost:hover { background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); }
.btn-soft { background: var(--panel-solid); border-color: var(--border); color: var(--text); }
.btn-soft:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary {
  background: var(--grad-h);
  background-size: 200% 100%;
  background-position: 50% 50%;
  color: #fff;
  box-shadow: 0 8px 22px rgba(99,102,241,.35);
}
.btn-primary:hover { box-shadow: 0 12px 30px rgba(99,102,241,.5); transform: translateY(-1px); }
.btn-lg { padding: 14px 26px; font-size: 16px; border-radius: 13px; }
.icon-btn { padding: 9px; border-radius: 10px; }
.lang-label { font-weight: 800; }

/* ===== Mobile nav toggle (hamburger) ===== */
.nav-toggle {
  display: none;
  align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px; cursor: pointer;
  background: color-mix(in srgb, var(--primary) 8%, var(--panel-solid));
  border: 1px solid color-mix(in srgb, var(--primary) 16%, var(--border));
  color: var(--text); font-size: 18px; line-height: 1;
  transition: background .15s ease;
}
.nav-toggle:hover { background: color-mix(in srgb, var(--primary) 16%, transparent); }
.nav-toggle .nt-close { display: none; }
.nav-toggle[aria-expanded="true"] .nt-open { display: none; }
.nav-toggle[aria-expanded="true"] .nt-close { display: inline; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); margin-top: 0; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 40px 20px 30px; }
.footer-top { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; align-items: flex-start; }
.footer-brand { max-width: 320px; }
.footer-brand .brand { margin-bottom: 12px; }
.footer-brand p { color: var(--text-soft); font-size: 14px; }
.footer-cols { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text-soft); font-size: 14.5px; padding: 4px 0; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13.5px; text-align: center; }

/* ===== Toast ===== */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%) translateY(20px);
  /* R585b 美化：品牌渐变背景替代纯深色，亮/暗主题下均精致醒目 */
  background: linear-gradient(120deg, #7c3aed 0%, #4f46e5 50%, #06b6d4 100%);
  color: #fff;
  padding: 12px 20px 13px; border-radius: 16px;
  font-size: 14px; font-weight: 600; letter-spacing: .01em;
  box-shadow: 0 14px 44px rgba(99,102,241,.38), 0 2px 8px rgba(20,24,50,.12), inset 0 0 0 1px rgba(255,255,255,.16);
  opacity: 0; transition: opacity .25s ease, transform .25s ease, bottom .25s ease; z-index: 120; pointer-events: none; max-width: 86vw;
  text-align: center; line-height: 1.5;
}
.toast::before {
  content: ""; position: absolute; top: 0; left: 22px; right: 22px; height: 2px;
  background: rgba(255,255,255,.55); border-radius: 0 0 3px 3px; opacity: .9;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
[data-theme="dark"] .toast {
  background: linear-gradient(120deg, #a78bfa 0%, #7c3aed 50%, #22d3ee 100%);
  box-shadow: 0 14px 44px rgba(99,102,241,.4), 0 2px 8px rgba(0,0,0,.35), inset 0 0 0 1px rgba(255,255,255,.18);
}
@media (max-width: 560px) {
  .toast { bottom: 16px; padding: 11px 16px 12px; font-size: 13.5px; border-radius: 14px; max-width: 92vw; }
}

/* ===== Reveal on scroll ===== */
.reveal { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 860px) {
  /* 移动端：用汉堡菜单代替横向导航，避免导航完全消失导致无法跳转 */
  .nav-toggle { display: inline-flex; }
  .header-nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    margin-left: 0;
    padding: 12px 16px 16px;
    background: var(--panel-solid);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .site-header.nav-open .header-nav { display: flex; }
  .header-nav a.navlink { padding: 12px 14px; font-size: 15px; }
}
@media (max-width: 560px) {
  .btn-lg { padding: 12px 20px; font-size: 15px; }
  .header-inner { padding: 0 14px; }
}
@media (max-width: 480px) {
  .header-actions #btn-lang .lang-label { display: none; }
  .header-actions #btn-lang { padding: 6px 8px; font-size: 13px; }
  .header-actions .btn-primary { padding: 8px 14px; font-size: 14px; }
  .header-inner { padding: 0 12px; gap: 8px; }
  .brand { min-width: 0; }
  .brand-name { font-size: 14px; }
}
/* 汉堡菜单打开时锁定页面滚动（仅移动端），避免背景滚动穿透 */
@media (max-width: 860px) {
  body.nav-lock { overflow: hidden; }
}

/* --- Reduced motion: respect OS "reduce" preference (a11y) --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Windows High Contrast / forced-colors (a11y) --- */
@media (forced-colors: active) {
  .btn, .navlink, .btn-ghost, .btn-soft, .btn-primary, .icon-btn {
    border: 2px solid ButtonText !important;
    background: ButtonFace !important;
    color: ButtonText !important;
  }
  .btn-primary { background: Highlight !important; color: HighlightText !important; border-color: Highlight !important; }
  .skip-link { background: Highlight !important; color: HighlightText !important; }
  :focus-visible { outline-color: Highlight !important; }
  a { color: LinkText !important; text-decoration: underline !important; }
}

/* ===== 兼容性回退：不支持 color-mix() 的旧浏览器用实色，避免白屏/透明头 ===== */
@supports not (color: color-mix(in srgb, red 50%, white)) {
  body {
    background: var(--bg);
  }
  .aurora {
    background: radial-gradient(700px 400px at 85% -10%, rgba(109,92,246,.12), transparent 60%);
  }
  .site-header {
    background: var(--panel);
  }
  .header-actions {
    background: var(--panel-solid);
    border-color: var(--border);
  }
  [data-theme="dark"] .header-actions {
    background: var(--panel-solid);
    border-color: var(--border);
  }
  .header-nav a.navlink:hover,
  .header-actions .btn-ghost:hover,
  .btn-ghost:hover {
    background: rgba(109,92,246,.12);
    color: var(--primary);
  }
  .nav-toggle {
    background: var(--panel-solid);
    border-color: var(--border);
  }
  .nav-toggle:hover {
    background: rgba(109,92,246,.14);
  }
}