:root{
  --bg:#070b14;
  --panel:#0d1524;
  --panel2:#101b30;
  --panel3:#16233c;
  --border:#1e2c44;
  --border2:#2c3f5e;
  --text:#d7dee8;
  --text-bright:#eaf1fb;
  --muted:#8b9bb4;
  --dim:#5f6f88;
  --teal:#2dd4a7;
  --teal-dim:#0f6e56;
  --teal-dim-hover:#128a66;
  --blue:#4aa8ff;
  --amber:#f5a623;
  --amber-bg:rgba(242,166,35,.12);
  --red:#e2534d;
  --red-bright:#ff8f89;
  --red-bg:rgba(226,83,77,.15);
  --green:#7ed957;
  --check:#0a120b;
  --on-accent:#eafaf4;
  --shadow:none;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
html.light{
  --bg:#fafaf9;
  --panel:#ffffff;
  --panel2:#f4f4f5;
  --panel3:#ecebe8;
  --border:#dddad7;
  --border2:#c9c6c2;
  --text:#1a1a1a;
  --text-bright:#18181b;
  --muted:#5c5957;
  --dim:#8a8783;
  --teal:#0d9488;
  --teal-dim:#0f766e;
  --teal-dim-hover:#115e59;
  --blue:#2563eb;
  --amber:#b45309;
  --amber-bg:rgba(180,83,9,.1);
  --red:#d63838;
  --red-bright:#d63838;
  --red-bg:rgba(214,56,56,.08);
  --green:#16a34a;
  --check:#ffffff;
  --on-accent:#ffffff;
  --shadow:0 1px 3px rgba(0,0,0,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.6}
a{color:var(--blue);text-decoration:none}
button{font-family:inherit;cursor:pointer}
#app{max-width:1080px;margin:0 auto;padding:0 20px 60px;min-height:100vh;display:flex;flex-direction:column}

/* top bar */
.topbar{display:flex;align-items:center;gap:16px;padding:18px 0 14px;border-bottom:1px solid var(--border);margin-bottom:22px}
.brand{font-weight:700;letter-spacing:1px;font-size:16px;color:var(--text-bright);cursor:pointer;user-select:none}
.brand::before{content:"▲";color:var(--teal);margin-right:8px;font-size:12px}
.topbar-right{margin-left:auto;display:flex;gap:8px;align-items:center}
.btn{background:var(--panel2);color:var(--text);border:1px solid var(--border2);border-radius:8px;padding:7px 14px;font-size:13px;transition:.15s}
.btn:hover{border-color:var(--teal);color:var(--teal)}
.btn.primary{background:var(--teal-dim);border-color:var(--teal);color:var(--on-accent)}
.btn.primary:hover{background:var(--teal-dim-hover)}
.btn.danger:hover{border-color:var(--red);color:var(--red)}
.btn.sm{padding:5px 10px;font-size:12px}
.user-tag{font-size:13px;color:var(--muted)}
.theme-btn{white-space:nowrap}

/* hero & home */
.hero{padding:34px 0 26px;text-align:center}
.hero h1{font-size:30px;font-weight:700;letter-spacing:2px}
.hero h1 span{color:var(--teal)}
.hero p{color:var(--muted);margin-top:10px;font-size:14px}
.section-title{font-size:14px;color:var(--muted);letter-spacing:2px;margin:30px 0 14px;text-transform:uppercase}
.ac-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.ac-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:22px;box-shadow:var(--shadow);transition:.15s}
.ac-card:hover{border-color:var(--teal);transform:translateY(-2px)}
.ac-type{font-size:20px;font-weight:700;color:var(--text-bright)}
.ac-meta{font-size:12px;color:var(--muted);margin-top:4px;letter-spacing:1px}
.ac-tags{display:flex;gap:6px;margin:14px 0}
.tag{font-size:11px;padding:3px 8px;border-radius:6px;border:1px solid var(--border2);color:var(--muted)}
.tag.crit{border-color:var(--amber);color:var(--amber)}
.ac-enter{display:flex;gap:8px;margin-top:6px}

/* panel / generic */
.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow)}
.form{max-width:380px;margin:40px auto}
.form h2{font-size:20px;margin-bottom:18px;text-align:center}
.field{margin-bottom:14px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:1px}
.field input{width:100%;background:var(--panel2);border:1px solid var(--border2);border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px;outline:none}
.field input:focus{border-color:var(--teal)}
.form .btn{width:100%;padding:11px;font-size:14px;margin-top:6px}
.form-hint{font-size:12px;color:var(--muted);text-align:center;margin-top:14px}
.err{color:var(--red);font-size:12px;margin-top:8px;text-align:center;min-height:18px}

/* tabs */
.tabs{display:flex;gap:8px;margin-bottom:18px;border-bottom:1px solid var(--border);padding-bottom:0}
.tab{padding:10px 18px;font-size:14px;color:var(--muted);border:1px solid transparent;border-bottom:none;border-radius:10px 10px 0 0;cursor:pointer}
.tab.active{color:var(--teal);border-color:var(--border);background:var(--panel);border-bottom:2px solid var(--teal)}
.ac-head{display:flex;align-items:baseline;gap:12px;margin-bottom:6px}
.ac-head h2{font-size:22px}
.ac-head .sub{color:var(--muted);font-size:13px}
.ac-head .stats{margin-left:auto;text-align:right}
.mono{font-family:var(--mono)}

/* phase strip */
.phase-strip{display:flex;gap:8px;overflow-x:auto;padding:6px 2px 12px;margin-bottom:16px;scrollbar-width:thin}
.phase-strip::-webkit-scrollbar{height:6px}
.phase-strip::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
.pchip{flex:0 0 auto;font-size:12px;padding:7px 14px;border-radius:999px;border:1px solid var(--border2);color:var(--muted);cursor:pointer;white-space:nowrap;background:var(--panel);transition:.15s}
.pchip:hover{border-color:var(--teal);color:var(--teal)}
.pchip.active{background:var(--teal-dim);border-color:var(--teal);color:var(--on-accent);font-weight:600}
.pchip.done{border-color:var(--green);color:var(--green)}
.pchip.crit{border-color:var(--amber);color:var(--amber)}
.pchip.active.crit{background:var(--amber);border-color:var(--amber);color:#221303}

/* checklist items */
.clist{display:flex;flex-direction:column}
.clist-head{display:flex;align-items:baseline;gap:12px;padding:4px 6px 12px;border-bottom:1px solid var(--border)}
.clist-head h3{font-size:17px}
.clist-head .en{color:var(--muted);font-size:12px;letter-spacing:1px}
.clist-head .cnt{margin-left:auto;font-family:var(--mono);color:var(--teal);font-size:15px}
.citem{display:flex;align-items:flex-start;gap:12px;padding:12px 6px;border-bottom:1px solid var(--border);cursor:pointer}
.citem:last-child{border-bottom:none}
.citem:hover{background:var(--panel3)}
.cbox{flex:0 0 20px;width:20px;height:20px;margin-top:2px;border-radius:50%;border:2px solid var(--border2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--check);transition:.15s;background:transparent}
.citem.on .cbox{background:var(--green);border-color:var(--green)}
.citem.on .cact{color:var(--dim);text-decoration:line-through}
.cact{font-size:14.5px;line-height:1.5}
.cmeta{margin-left:auto;display:flex;gap:6px;align-items:center;flex:0 0 auto}
.cbadge{font-size:11px;padding:2px 8px;border-radius:6px;border:1px solid var(--border2);color:var(--muted)}
.cbadge.crit{background:var(--amber-bg);border-color:var(--amber);color:var(--amber)}
.cbadge.dup{border-color:var(--blue);color:var(--blue)}

/* progress bar */
.pbar-wrap{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}
.pbar{flex:1;height:8px;background:var(--panel2);border-radius:999px;overflow:hidden}
.pbar>div{height:100%;background:var(--teal);border-radius:999px;transition:width .3s}
.pbar-txt{font-family:var(--mono);font-size:13px;color:var(--teal)}

/* learn */
.learn-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:12px;box-shadow:var(--shadow)}
.learn-card .lact{font-size:15px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.lbl{font-size:11px;color:var(--dim);letter-spacing:2px;display:block;margin:10px 0 4px}
.lbl:first-child{margin-top:2px}
.ltxt{font-size:13.5px;color:var(--text);line-height:1.7}
.lsim{font-size:13px;color:var(--blue);line-height:1.6}

/* emergency */
.em-card{background:var(--panel);border:1px solid var(--red);border-left:4px solid var(--red);border-radius:12px;padding:16px 18px;margin-bottom:14px;box-shadow:var(--shadow)}
.em-card h3{font-size:16px;color:var(--red-bright);display:flex;align-items:center;gap:10px}
.em-card .en{font-size:11px;color:var(--muted);letter-spacing:1px;font-weight:400}
.em-step{display:flex;gap:10px;align-items:flex-start;padding:7px 0;font-size:13.5px;border-bottom:1px dashed var(--border)}
.em-step:last-child{border-bottom:none}
.em-num{flex:0 0 22px;height:22px;border-radius:6px;background:var(--red-bg);color:var(--red-bright);font-family:var(--mono);font-size:12px;display:flex;align-items:center;justify-content:center}
.em-note{font-size:12px;color:var(--muted);margin-top:8px}

/* hero figure (photo) */
.hero-figure{position:relative;height:430px;border-radius:18px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:28px}
.hero-bg{position:absolute;inset:0;background:url("https://asiaforfun.liuyazhou.me/checklist/hero.jpg") center 22%/cover no-repeat;background-image:image-set(url("https://asiaforfun.liuyazhou.me/checklist/hero.webp") type("image/webp"), url("https://asiaforfun.liuyazhou.me/checklist/hero.jpg") type("image/jpeg"))}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.10) 0%,rgba(6,10,18,.32) 45%,rgba(6,10,18,.88) 100%)}
html.light .hero-scrim{background:linear-gradient(180deg,rgba(8,16,28,.05) 0%,rgba(8,16,28,.28) 45%,rgba(8,16,28,.80) 100%)}
.hero-body{position:absolute;left:0;right:0;bottom:0;padding:0 34px 30px;color:#fff}
.hero-kicker{font-size:11px;letter-spacing:3.5px;color:#6ee7d0;font-weight:600;text-transform:uppercase}
.hero-body h1{font-size:36px;font-weight:700;letter-spacing:2.5px;color:#fff;margin:9px 0 7px;text-shadow:0 2px 18px rgba(3,7,14,.55)}
.hero-body h1 span{color:#5eead4}
.hero-body p{font-size:14px;color:rgba(255,255,255,.9);text-shadow:0 1px 10px rgba(3,7,14,.55)}
.hero-actions{display:flex;gap:12px;margin-top:20px}
.hero-actions .btn{font-size:14px;padding:11px 26px;border-radius:10px}
.hero-actions .btn.primary{background:#0d9488;border-color:#2dd4bf;color:#fff}
.hero-actions .btn.primary:hover{background:#0f766e;border-color:#5eead4}
.hero-actions .btn.ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);color:#fff}
.hero-actions .btn.ghost:hover{background:rgba(255,255,255,.24);border-color:#fff;color:#fff}
@media (max-width:640px){
  .hero-figure{height:360px;border-radius:14px;margin-bottom:20px}
  .hero-body{padding:0 20px 24px}
  .hero-body h1{font-size:26px;letter-spacing:1.5px}
  .hero-kicker{font-size:10px;letter-spacing:2px}
  .hero-actions{flex-direction:column;gap:8px}
  .hero-actions .btn{width:100%}
}

/* slim banner for picker page */
.page-banner{position:relative;height:150px;border-radius:14px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:22px}
.page-banner .pb-bg{position:absolute;inset:0;background:url("https://asiaforfun.liuyazhou.me/checklist/hero.jpg") center 50%/cover no-repeat;background-image:image-set(url("https://asiaforfun.liuyazhou.me/checklist/hero.webp") type("image/webp"), url("https://asiaforfun.liuyazhou.me/checklist/hero.jpg") type("image/jpeg"))}
.page-banner .pb-scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,10,18,.78) 0%,rgba(6,10,18,.45) 55%,rgba(6,10,18,.18) 100%)}
html.light .page-banner .pb-scrim{background:linear-gradient(90deg,rgba(8,16,28,.72) 0%,rgba(8,16,28,.4) 55%,rgba(8,16,28,.14) 100%)}
.page-banner .pb-body{position:absolute;left:0;top:0;bottom:0;display:flex;flex-direction:column;justify-content:center;padding:0 26px;color:#fff}
.page-banner .pb-body b{font-size:19px;font-weight:600;letter-spacing:.5px;text-shadow:0 2px 12px rgba(3,7,14,.5)}
.page-banner .pb-body span{font-size:12.5px;color:rgba(255,255,255,.85);margin-top:3px;letter-spacing:.5px;text-shadow:0 1px 8px rgba(3,7,14,.5)}

/* welcome page */
.welcome-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.feature h3{font-size:15px;margin:10px 0 6px}
.feature p{font-size:13px;color:var(--muted);line-height:1.7}
.f-ico{width:34px;height:34px;border-radius:10px;background:var(--teal-dim);color:var(--on-accent);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:8px}
.step{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow)}
.step .n{font-family:var(--mono);font-size:12px;color:var(--teal);letter-spacing:1px}
.step b{display:block;font-size:14px;margin:6px 0 4px}
.step span{font-size:12px;color:var(--muted);line-height:1.6}
.cta-row{display:flex;gap:12px;justify-content:center;margin:26px 0 10px}
.cta-row .btn{font-size:15px;padding:12px 30px;border-radius:10px}

/* stats on home */
.st-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:8px}
.stat{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.stat .v{font-family:var(--mono);font-size:24px;color:var(--teal);font-weight:700}
.stat .k{font-size:12px;color:var(--muted);margin-top:4px}

/* print area */
.print-area{display:none}

.foot{margin-top:auto;padding:22px 0 30px;border-top:1px solid var(--border);text-align:center;font-size:12px;color:var(--dim);line-height:1.7}
.foot a{color:var(--teal);font-weight:500;border-bottom:1px solid transparent;transition:.15s}
.foot a:hover{border-bottom-color:var(--teal)}

/* ---------- PWA：安全区与移动端 ---------- */
:root{
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
  --sal:env(safe-area-inset-left,0px);
  --sar:env(safe-area-inset-right,0px);
}
body{-webkit-tap-highlight-color:transparent}
#app{min-height:100dvh}

/* 离线提示条 */
.offline-bar{position:fixed;top:0;left:0;right:0;z-index:60;background:var(--amber);color:#221303;text-align:center;font-size:12.5px;font-weight:500;padding:6px 12px;padding-top:calc(6px + var(--sat))}

/* 添加到主屏引导条 */
.install-bar{position:fixed;left:12px;right:12px;bottom:calc(14px + var(--sab));z-index:55;background:var(--panel);border:1px solid var(--teal);border-radius:14px;padding:13px 15px;display:flex;gap:12px;align-items:center;box-shadow:0 8px 26px rgba(0,0,0,.3)}
.install-bar .ib-txt{flex:1;font-size:13px;line-height:1.55;color:var(--text);min-width:0}
.install-bar .ib-txt b{color:var(--teal)}
.install-bar .ib-txt span{display:block;font-size:11.5px;color:var(--muted);margin-top:3px}
.install-bar .btn{flex:0 0 auto}

@media (display-mode: standalone){
  body{overscroll-behavior-y:none}
  #app{padding-left:calc(20px + var(--sal));padding-right:calc(20px + var(--sar))}
  .topbar{padding-top:calc(18px + var(--sat))}
  .foot{padding-bottom:calc(30px + var(--sab))}
  input,select,textarea{font-size:16px}
  .install-bar{display:none !important}
}

@media print{
  body *{visibility:hidden}
  .print-area,.print-area *{visibility:visible}
  .print-area{display:block;position:absolute;left:0;top:0;width:100%}
  .print-area .clist-head,.print-area .citem{border-color:#ccc;color:#000}
  .print-area .cact{color:#000;text-decoration:none}
}