/* =========================================================
   工具箱 · range
   ========================================================= */

:root{
  --bg:#F5F6F9;
  --bg-2:#FFFFFF;
  --card:#FFFFFF;
  --ink:#14161B;
  --ink-2:#4E5566;
  --ink-3:#868D9E;
  --line:#E3E6ED;
  --line-2:#EEF0F5;
  --brand:#4F46E5;
  --brand-2:#6366F1;
  --brand-soft:#EEEDFE;
  --radius:16px;
  --radius-sm:10px;
  --maxw:1120px;
  --shadow:0 1px 2px rgba(16,20,40,.04), 0 8px 24px rgba(16,20,40,.05);
  --shadow-hover:0 2px 4px rgba(16,20,40,.06), 0 16px 40px rgba(16,20,40,.10);
}

@media (prefers-color-scheme: dark){
  :root{
    --bg:#0E1014;
    --bg-2:#15181E;
    --card:#181C23;
    --ink:#ECEEF3;
    --ink-2:#A6ADBC;
    --ink-3:#767E8F;
    --line:#272C35;
    --line-2:#1F242C;
    --brand:#8B85FF;
    --brand-2:#A5A0FF;
    --brand-soft:#241F45;
    --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.28);
    --shadow-hover:0 2px 4px rgba(0,0,0,.4), 0 16px 40px rgba(0,0,0,.42);
  }
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font:15.5px/1.72 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  padding:0 20px 60px;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto}
a{color:inherit}
b{font-weight:600}

/* ============ 头部 ============ */
.hero{padding:60px 0 8px;position:relative}

.hero-top{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
}

/* 像素方块 logo */
.mark{
  width:52px;height:52px;border-radius:13px;flex-shrink:0;
  display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:9px;
  background:var(--brand);
  box-shadow:0 6px 18px rgba(79,70,229,.24);
}
.mark span{background:#fff;border-radius:2.5px;opacity:.95}
.mark span:nth-child(2){opacity:.6}
.mark span:nth-child(3){opacity:.75}
.mark span:nth-child(4){background:#fff}
.mark.small{width:34px;height:34px;border-radius:9px;padding:6px;gap:3px;box-shadow:none}

.hero-text{flex:1;min-width:200px}
h1{
  font-size:clamp(30px,5.5vw,44px);font-weight:700;letter-spacing:-.03em;line-height:1.12;
}
.byline{
  color:var(--ink-2);font-size:15px;margin-top:6px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.dot{color:var(--brand);font-weight:700}

/* 署名徽章 */
.signature{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:var(--brand-soft);border:1px solid transparent;
  flex-shrink:0;
  transition:transform .2s cubic-bezier(.2,.7,.3,1);
}
.signature:hover{transform:rotate(-1.5deg) scale(1.03)}
@media (prefers-color-scheme: dark){ .signature{border-color:#332C5C} }
.sig-label{
  font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);opacity:.7;font-weight:600;
}
.sig-name{
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--brand);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* 打字机状态行 */
.status-line{
  display:flex;align-items:center;gap:9px;
  margin-top:26px;padding:11px 16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;color:var(--ink-2);min-height:42px;
  overflow:hidden;
}
.cursor{
  width:8px;height:16px;background:var(--brand);border-radius:2px;flex-shrink:0;
  animation:blink 1.1s step-end infinite;
}
@keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}
@media (prefers-reduced-motion: reduce){ .cursor{animation:none} }
.typed{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 徽章 */
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.badge{
  font-size:12.5px;color:var(--ink-2);background:var(--card);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}

/* 事实条 */
.facts{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:18px;font-size:13.5px;color:var(--ink-3);
}
.fact b{color:var(--ink);font-weight:700;font-size:15px}
.fact-sep{width:3px;height:3px;border-radius:50%;background:var(--ink-3);opacity:.5}

/* ============ 每日一句 ============ */
.daily{margin-top:26px}
.daily-inner{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:17px 20px;
  box-shadow:var(--shadow);
}
.daily-tag{
  flex-shrink:0;font-size:11.5px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:3px 10px;border-radius:999px;margin-top:2px;
}
.daily-inner p{color:var(--ink-2);font-size:14.5px}

/* ============ 区块标题 ============ */
section.tools,section.others,section.about{margin-top:54px}
.sec-title{font-size:19px;font-weight:700;letter-spacing:-.015em}
.sec-sub{color:var(--ink-3);font-size:14px;margin-top:4px;margin-bottom:20px}

/* ============ 卡片 ============ */
.grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:20px;
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s ease, border-color .22s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--brand);
}
.shot{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--line-2);border-bottom:1px solid var(--line);
}
.shot img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.3,1);
}
.card:hover .shot img{transform:scale(1.045)}
.pill{
  position:absolute;top:11px;left:11px;
  font-size:11.5px;font-weight:600;color:#fff;
  background:rgba(12,14,20,.72);backdrop-filter:blur(8px);
  padding:4px 10px;border-radius:999px;letter-spacing:.02em;
}
.card-body{padding:19px 21px 21px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:17.5px;font-weight:700;letter-spacing:-.012em}
.card .desc{color:var(--ink-2);font-size:14px;margin-top:9px;flex:1}

.meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:15px}
.meta span{
  font-size:11.5px;color:var(--ink-3);
  background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2.5px 8px;
}

.acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
a.btn{
  display:inline-flex;align-items:center;gap:6px;text-decoration:none;
  font-size:13.5px;font-weight:600;padding:9px 15px;border-radius:var(--radius-sm);
  border:1px solid var(--line);color:var(--ink);background:var(--card);
  transition:all .16s ease;
}
a.btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
a.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
a.btn.primary:hover{background:var(--brand-2);border-color:var(--brand-2);color:#fff}

/* ============ 外链列表 ============ */
.linklist{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.linkrow{
  display:flex;align-items:center;gap:14px;padding:16px 21px;
  border-bottom:1px solid var(--line-2);text-decoration:none;color:inherit;
  transition:background .15s ease;
}
.linkrow:last-child{border-bottom:0}
.linkrow:hover{background:var(--bg)}
.linkrow .nm{font-weight:600;font-size:14.5px}
.linkrow .ds{color:var(--ink-3);font-size:13px;margin-top:2px}
.linkrow .arrow{margin-left:auto;color:var(--ink-3);flex-shrink:0;transition:transform .18s ease}
.linkrow:hover .arrow{transform:translateX(4px);color:var(--brand)}

/* ============ 说明 ============ */
.note{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius-sm);padding:18px 22px;color:var(--ink-2);font-size:14.5px;
  box-shadow:var(--shadow);
}
.note b{color:var(--ink)}
.note p + p{margin-top:11px}

/* ============ 页脚 ============ */
.foot{margin-top:60px;padding-top:28px;border-top:1px solid var(--line)}
.foot-main{
  display:flex;justify-content:space-between;align-items:flex-start;
  gap:24px;flex-wrap:wrap;
}
.foot-brand{display:flex;gap:12px;align-items:center}
.foot-name{font-weight:600;font-size:14.5px}
.foot-by{color:var(--ink-3);font-size:13px;margin-top:2px}
.foot-by b{color:var(--brand)}
.foot-contact{text-align:right;max-width:100%}
.foot-note{color:var(--ink-3);font-size:12.5px;margin-top:20px}

/* 邮箱图片化：肉眼可读，爬虫抓不到；点击可复制 */
.mail-pill{
  display:inline-flex;align-items:center;gap:10px;margin-top:8px;
  padding:7px 12px;border-radius:var(--radius-sm);cursor:pointer;
  background:var(--card);border:1px solid var(--line);
  transition:border-color .16s ease,background .16s ease,transform .16s ease;
  position:relative;
}
.mail-pill:hover{border-color:var(--brand);background:var(--brand-soft)}
.mail-pill:active{transform:scale(.98)}
.mail-pill:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.mail-pill img{
  display:block;width:210px;height:auto;
}
/* 暗色模式下把黑字反成白字 */
@media (prefers-color-scheme: dark){
  .mail-pill img{filter:invert(1) hue-rotate(180deg) brightness(1.05)}
}
.copy-hint{
  font-size:12px;color:var(--ink-3);white-space:nowrap;
  padding-left:10px;border-left:1px solid var(--line);
}
.mail-pill:hover .copy-hint{color:var(--brand)}

.mail-toast{
  font-size:12.5px;color:var(--brand);margin-top:7px;height:17px;
  opacity:0;transform:translateY(-3px);
  transition:opacity .2s ease,transform .2s ease;
}
.mail-toast.show{opacity:1;transform:translateY(0)}


/* ============ 响应式 ============ */
@media (max-width:640px){
  body{padding:0 16px 48px}
  .hero{padding:40px 0 4px}
  .hero-top{gap:14px}
  .signature{order:3;padding:6px 13px}
  .sig-name{font-size:16px}
  .daily-inner{flex-direction:column;gap:9px}
  .status-line{font-size:12.5px}
  .foot-main{flex-direction:column}
  .foot-contact{text-align:left}
  .mail-pill img{width:170px}
  .grid{grid-template-columns:1fr}
}