:root{
    --r:20px; --radius:14px;
    --bg:#0B0D10; --paper:#0B0D10;
    --card:rgba(255,255,255,.04);
    --ink:#EDEDED; --ink-soft:#9CA3AF; --ink-weak:#6B7280;
    --line:rgba(255,255,255,.06);
    --indigo:#5E6AD2; --indigo-deep:#4B53B0; --gold:#A78BFA;
    --mint:#34D399; --rose:#F87171; --lav:#A78BFA; --sky:#5E6AD2;
    --soft:#6B7280; --soft-strong:#565d68;
    --pill:rgba(94,106,210,.14); --hover:rgba(255,255,255,.06);
    --hairline:rgba(255,255,255,.06); --dash:rgba(255,255,255,.14);
    --ring-track:rgba(255,255,255,.08); --field-grad:rgba(255,255,255,.03);
    --dot:rgba(255,255,255,.045);
    --shadow:0 24px 60px -24px rgba(0,0,0,.75); --shadow-sm:0 8px 28px -14px rgba(0,0,0,.6);
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{font-family:'Inter','Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-weight:400;font-size:17px;line-height:1.7;color:var(--ink);min-height:100vh;padding:0 24px 140px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;background:var(--bg);}
  body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background-image:radial-gradient(var(--dot) 1px,transparent 1px);background-size:28px 28px;}
  .wrap{max-width:1060px;margin:0 auto;position:relative;z-index:1;}
  ::selection{background:rgba(94,106,210,.4);color:#fff;}
  ::-webkit-scrollbar{width:10px;height:8px;}
  ::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:20px;border:2px solid var(--bg);}
  ::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22);}

  #progressBar{position:fixed;top:0;left:0;right:0;height:2px;z-index:120;background:linear-gradient(90deg,#5E6AD2,#A78BFA);transform-origin:left center;transform:scaleX(0);box-shadow:0 0 14px rgba(94,106,210,.9);}

  header{margin:80px 0 12px;position:relative;}
  .hero-watermark{position:absolute;top:56px;right:-10px;font-family:'Inter','Noto Sans SC',sans-serif;font-weight:800;font-size:clamp(4rem,12vw,8.5rem);line-height:1;letter-spacing:-0.05em;color:rgba(255,255,255,.045);pointer-events:none;user-select:none;z-index:-1;}
  .topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
  .kicker{display:flex;align-items:center;gap:12px;color:var(--ink-weak);font-size:12px;letter-spacing:4px;font-weight:600;text-transform:uppercase;}
  .kicker::before,.kicker::after{content:"";height:1px;width:34px;background:linear-gradient(90deg,transparent,rgba(94,106,210,.7));border-radius:2px;opacity:.7;}
  .kicker::after{background:linear-gradient(90deg,rgba(94,106,210,.7),transparent);}
  .top-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
  .mini-btn{border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink-soft);padding:9px 15px;border-radius:14px;cursor:pointer;font-family:inherit;font-size:13px;letter-spacing:.2px;box-shadow:inset 0 1px 0 rgba(255,255,255,.03);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);will-change:transform;}
  .mini-btn:hover{color:var(--ink);border-color:rgba(94,106,210,.5);}
  .today{align-self:flex-start;font-size:12px;color:var(--ink-weak);letter-spacing:1px;background:var(--hover);border:1px solid var(--line);padding:6px 14px;border-radius:14px;order:3;}
  h1{font-family:'Inter','Noto Sans SC',sans-serif;font-weight:700;font-size:clamp(4rem,10vw,7rem);line-height:1.0;letter-spacing:-0.03em;margin:22px 0 12px;background:linear-gradient(100deg,#FFFFFF 0%,#D8DCFF 48%,#B7BEF7 100%);-webkit-background-clip:text;background-clip:text;color:transparent;will-change:transform;}
  .subtitle{color:var(--ink-soft);font-size:17px;letter-spacing:.5px;}
  .targets{display:flex;gap:16px;flex-wrap:wrap;margin:40px 0 6px;}
  .t-card{position:relative;flex:1 1 200px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-sm);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);overflow:hidden;cursor:default;transition:border-color .3s;will-change:transform;}
  .t-card:hover{border-color:rgba(94,106,210,.3);}
  .t-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,#5E6AD2,#A78BFA);opacity:.9;}
  .t-head{display:flex;align-items:center;justify-content:space-between;gap:8px;}
  .t-name{font-family:'Inter','Noto Sans SC',sans-serif;font-weight:600;font-size:18px;color:var(--ink);}
  .t-ring{position:relative;width:54px;height:54px;flex:none;}
  .t-ring svg{width:100%;height:100%;transform:rotate(-90deg);}
  .t-ring .rv{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#C7CDFF;font-family:'Inter',sans-serif;}
  .t-line{color:var(--ink-soft);font-size:14px;margin-top:12px;}
  .t-line b{color:#fff;font-size:20px;font-weight:700;font-family:'Inter',sans-serif;}
  .t-note{font-size:12px;color:var(--ink-weak);margin-top:5px;}
  .t-badge{display:inline-block;margin-top:12px;font-size:11px;padding:4px 12px;border-radius:14px;color:#fff;}
  .t-badge.ok{background:rgba(52,211,153,.16);color:#6EE7B7;border:1px solid rgba(52,211,153,.3);}
  .t-badge.no{background:rgba(255,255,255,.07);color:var(--ink-soft);}
  .add-target{flex:1 1 160px;border:1.5px dashed var(--dash);background:transparent;border-radius:20px;color:var(--ink-soft);font-family:inherit;font-size:15px;cursor:pointer;padding:20px;}
  .add-target:hover{border-color:var(--indigo);color:#C7CDFF;background:rgba(94,106,210,.06);}

  nav{position:sticky;top:12px;z-index:80;display:flex;align-items:center;gap:4px;height:64px;padding:6px;margin:36px 0 44px;border:1px solid var(--line);border-radius:16px;background:rgba(13,15,19,.92);box-shadow:var(--shadow-sm);}
  .tab{display:inline-flex;align-items:center;height:52px;padding:0 22px;border:none;background:transparent;border-radius:12px;cursor:pointer;font-family:inherit;font-size:15px;font-weight:500;color:var(--ink-soft);letter-spacing:.2px;will-change:transform;}
  .tab:hover{color:var(--ink);}
  .tab.active{color:#fff;font-weight:600;background:rgba(94,106,210,.2);}

  section{display:none;}
  section.on{display:block;}
  .card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);padding:48px;margin:32px 0;position:relative;overflow:hidden;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);transition:border-color .3s;will-change:transform;}
  .card:hover{border-color:rgba(94,106,210,.3);}
  h2{font-family:'Inter','Noto Sans SC',sans-serif;font-weight:700;font-size:2.2rem;line-height:1.2;letter-spacing:-0.03em;color:var(--ink);margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .hint{color:var(--ink-soft);font-size:14px;margin-bottom:24px;}
  .sec-num{font-size:12px;font-weight:500;color:#C7CDFF;font-family:'Inter',sans-serif;background:rgba(94,106,210,.16);border-radius:9px;padding:3px 10px;}

  .hero-empty{text-align:center;padding:72px 20px;}
  .hero-empty .big{font-size:64px;line-height:1;}
  .hero-empty h3{font-family:'Inter','Noto Sans SC',sans-serif;font-weight:700;font-size:30px;margin:18px 0 10px;color:var(--ink);letter-spacing:-0.02em;}
  .hero-empty p{color:var(--ink-soft);font-size:15px;margin-bottom:26px;}
  .hero-empty .row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

  .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;margin-bottom:32px;}
  .stat{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px 22px 20px;box-shadow:var(--shadow-sm);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);overflow:hidden;transition:border-color .3s;will-change:transform;}
  .stat:hover{border-color:rgba(94,106,210,.3);}
  .stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--sc,var(--indigo));}
  .stat .label{font-size:12px;color:var(--ink-soft);letter-spacing:.5px;display:flex;align-items:center;gap:6px;}
  .stat .label .ic{font-size:15px;}
  .stat .value{font-size:30px;font-weight:700;color:var(--ink);margin-top:8px;font-family:'Inter','Noto Sans SC',sans-serif;letter-spacing:-0.02em;}
  .stat .delta{font-size:12px;margin-top:6px;}
  .up{color:var(--mint);}.down{color:var(--rose);}.flat{color:var(--ink-soft);}

  .chart-head{display:flex;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-bottom:10px;}
  .seg{display:inline-flex;background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:14px;padding:4px;gap:2px;}
  .seg button{border:none;background:transparent;padding:8px 18px;border-radius:11px;cursor:pointer;font-family:inherit;font-size:13px;color:var(--ink-soft);}
  .seg button.active{background:rgba(94,106,210,.2);color:#fff;font-weight:600;}
  .chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;}
  .chip{border:1px solid var(--line);background:rgba(255,255,255,.03);border-radius:14px;padding:8px 16px;font-size:13px;cursor:pointer;font-family:inherit;color:var(--ink-soft);will-change:transform;}
  .chip:hover{border-color:rgba(94,106,210,.5);color:var(--ink);}
  .chip.active{color:#fff;font-weight:600;background:var(--cc,var(--indigo));border-color:var(--cc,var(--indigo));box-shadow:0 6px 18px -8px rgba(94,106,210,.7);}
  .chart-box{position:relative;}
  svg.chart{width:100%;height:auto;display:block;}
  .ttip{position:absolute;pointer-events:none;opacity:0;background:rgba(18,20,26,.94);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px);color:#fff;padding:11px 15px;border-radius:12px;font-size:12px;line-height:1.8;z-index:5;box-shadow:0 16px 34px -10px rgba(0,0,0,.6);white-space:nowrap;border-top:2px solid #A78BFA;}
  .ttip b{color:#C7CDFF;}
  .empty-chart{text-align:center;color:var(--ink-soft);padding:64px 10px;font-size:15px;}

  .filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px;}
  table{width:100%;border-collapse:collapse;font-size:14px;}
  th{color:var(--ink-soft);font-weight:600;text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.5px;white-space:nowrap;}
  td{padding:14px 10px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:top;}
  tr:last-child td{border-bottom:none;}
  tbody tr{transition:background .2s;}
  tbody tr:hover td{background:var(--hover);}
  .score{font-weight:700;font-size:15px;color:#fff;font-family:'Inter',sans-serif;}
  .type-tag{display:inline-block;padding:3px 11px;border-radius:12px;font-size:12px;font-weight:500;}
  .type-mc{background:rgba(94,106,210,.18);color:#C7CDFF;}.type-mid{background:rgba(167,139,250,.18);color:#DDD6FE;}.type-fin{background:rgba(34,211,238,.15);color:#A5F3FC;}.type-sim{background:rgba(52,211,153,.15);color:#A7F3D0;}
  .sub-score{color:var(--ink-soft);font-size:13px;}
  .sub-score b{color:var(--ink);font-weight:600;}
  .pct{font-size:11px;color:var(--ink-weak);}
  .s-good{color:#34D399 !important;}.s-mid{color:#FBBF24 !important;}.s-low{color:#F87171 !important;}
  .scell{display:inline-flex;align-items:baseline;gap:4px;}
  .avg-row td{font-weight:600;border-top:1px solid var(--line);}
  .avg-row .avg-title{color:#C7CDFF;font-weight:600;white-space:nowrap;}
  .avg-row .score{color:#C7CDFF;}
  .bar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px;align-items:center;}
  .search{flex:1 1 220px;position:relative;}
  .search input{width:100%;padding:11px 13px 11px 38px;border:1px solid var(--line);border-radius:14px;font-family:inherit;font-size:14px;color:var(--ink);background:rgba(255,255,255,.035) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='M21 21l-4.3-4.3'/></svg>") 12px center/17px no-repeat;box-shadow:inset 0 1px 3px rgba(0,0,0,.35);backdrop-filter:blur(12px);}
  .search input:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(94,106,210,.22);}
  .count-pill{font-size:12px;color:var(--ink-soft);background:var(--hover);padding:7px 14px;border-radius:14px;white-space:nowrap;}
  .remark{color:var(--ink-soft);font-size:13px;max-width:180px;line-height:1.5;}
  .op{display:flex;gap:8px;}
  .icon-btn{border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;font-size:14px;line-height:1;padding:7px 11px;border-radius:10px;opacity:1;color:var(--ink-soft);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:all .18s;will-change:transform;}
  .icon-btn:hover{opacity:1;transform:translateY(-1px);}
  .icon-btn:active{transform:translateY(0) scale(.97);}
  .icon-btn[title="编辑"]{color:#c3c9ff;border-color:rgba(94,106,210,.38);background:rgba(94,106,210,.12);}
  .icon-btn[title="编辑"]:hover{border-color:rgba(94,106,210,.75);background:rgba(94,106,210,.22);color:#e0e3ff;}
  .icon-btn[title="删除"]{color:#ffb3ba;border-color:rgba(251,113,133,.35);background:rgba(251,113,133,.10);}
  .icon-btn[title="删除"]:hover{border-color:rgba(251,113,133,.7);background:rgba(251,113,133,.18);color:#ffd0d5;}

  .form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:18px;}
  .field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px;font-weight:500;}
  input[type=text],input[type=number],input[type=date],select,textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;font-family:inherit;font-size:15px;color:var(--ink);background:rgba(255,255,255,.04);box-shadow:inset 0 1px 3px rgba(0,0,0,.35);backdrop-filter:blur(12px);}
  input:focus,select:focus,textarea:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(94,106,210,.22);}
  input[type=date]{color-scheme:dark;}
  /* 修复：下拉框选项白底白字显示空白
     关键：给 select 不透明的实色背景，并去掉 inset 阴影与滤镜，
     否则 Windows Chrome 的原生下拉菜单会被半透明样式污染，点了只有一片空白 */
  select{color-scheme:dark;background:#171D33;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;}
  select option{background:#171D33;color:#EDEDED;padding:6px 10px;}
  select option:hover,select option:checked{background:#1F2747;color:#FFF;}
  textarea{resize:vertical;min-height:64px;}
  .score-inputs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-top:14px;}
  .score-item{background:var(--field-grad);border:1px solid var(--line);border-radius:14px;padding:16px;backdrop-filter:blur(12px);transition:border-color .3s;}
  .score-item:hover{border-color:rgba(94,106,210,.3);}
  .score-item:focus-within{border-color:var(--indigo);box-shadow:0 0 0 3px rgba(94,106,210,.18);}
  /* 新增：小测选科 */
  .quiz-opts{display:flex;flex-wrap:wrap;gap:8px;}
  .quiz-opt{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--line);border-radius:12px;cursor:pointer;font-size:13px;color:var(--ink-soft);background:rgba(255,255,255,.03);transition:all .18s;user-select:none;}
  .quiz-opt.on{border-color:rgba(94,106,210,.6);color:var(--ink);background:rgba(94,106,210,.12);}
  .quiz-opt input{accent-color:var(--indigo);}
  .shead{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:12px;}
  .shead .sname{font-family:'Noto Sans SC','Inter',sans-serif;font-weight:600;font-size:16px;color:var(--ink);width:100%;background:transparent;border:none;border-bottom:1px dashed var(--dash);padding-bottom:3px;outline:none;box-shadow:none;}
  .shead .sfull{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--ink-soft);white-space:nowrap;}
  .shead .sfull input{width:46px;text-align:center;padding:3px;border:1px solid var(--line);border-radius:8px;font-family:inherit;font-size:12px;color:var(--ink);background:rgba(255,255,255,.04);box-shadow:inset 0 1px 2px rgba(0,0,0,.3);}
  .sval{width:100%;text-align:center;font-size:22px;font-weight:700;font-family:'Inter',sans-serif;padding:7px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);color:var(--ink);box-shadow:inset 0 1px 2px rgba(0,0,0,.3);}
  .sfull-note{font-size:11px;color:var(--ink-weak);text-align:center;margin-top:9px;border-top:1px dashed var(--dash);padding-top:8px;}
  .sfull-note b{color:#C7CDFF;}
  .total-preview{margin-top:22px;font-size:15px;color:var(--ink);display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--hover);border:1px dashed var(--dash);border-radius:14px;padding:16px 20px;}
  .total-preview b{font-size:34px;color:#C7CDFF;font-family:'Inter',sans-serif;font-weight:700;}
  .total-preview .tag{font-size:12px;color:#fff;background:linear-gradient(90deg,#5E6AD2,#A78BFA);padding:4px 12px;border-radius:12px;font-weight:600;}
  .btn{border:none;cursor:pointer;padding:14px 30px;border-radius:14px;font-family:inherit;font-size:15px;font-weight:600;background:linear-gradient(135deg,#5E6AD2,#6E79E8);color:#fff;box-shadow:0 10px 26px -10px rgba(94,106,210,.7);will-change:transform;}
  .btn.ghost{background:rgba(255,255,255,.04);color:var(--ink);border:1px solid var(--line);box-shadow:none;}
  .btn.ghost:hover{border-color:rgba(94,106,210,.5);color:#fff;}
  .btn.danger{background:linear-gradient(135deg,#F87171,#E11D48);box-shadow:0 10px 26px -10px rgba(225,29,72,.55);}
  .btn.gold{background:linear-gradient(135deg,#8B5CF6,#A78BFA);box-shadow:0 10px 26px -10px rgba(139,92,246,.55);}
  .btn-row{display:flex;gap:14px;margin-top:28px;align-items:center;flex-wrap:wrap;}

  .target-row{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;background:var(--card);backdrop-filter:blur(16px);transition:border-color .3s;}
  .target-row:hover{border-color:rgba(94,106,210,.3);}
  .target-row .t-main{flex:1;}
  .target-row .t-main b{font-size:18px;font-weight:600;color:var(--ink);}
  .target-row .t-main span{display:block;font-size:13px;color:var(--ink-soft);margin-top:3px;}
  .target-line{font-size:15px;color:#C7CDFF;font-weight:600;white-space:nowrap;background:rgba(94,106,210,.14);padding:7px 14px;border-radius:12px;font-family:'Inter',sans-serif;}

  #toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(24px) scale(.9);background:rgba(24,26,33,.95);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(12px);color:#fff;padding:14px 26px;border-radius:14px;font-size:14px;box-shadow:0 20px 50px -14px rgba(0,0,0,.7);opacity:0;pointer-events:none;transition:all .35s cubic-bezier(.2,.9,.3,1.3);z-index:99;border-top:2px solid var(--indigo);}
  #toast.show{opacity:1;transform:translateX(-50%) translateY(0) scale(1);}
  #fileIn,#docIn{display:none;}
  footer{text-align:center;color:var(--ink-weak);font-size:13px;margin-top:56px;letter-spacing:1px;display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;}

  .assess-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;flex-wrap:wrap;}
  .assess-trend{font-size:14px;color:var(--ink-soft);margin:4px 0 0;}
  .assess-trend b{color:#fff;font-family:'Inter',sans-serif;}
  .assess-trend.up{color:var(--mint);}.assess-trend.down{color:var(--rose);}.assess-trend.flat{color:var(--ink-soft);}
  .assess-tips{display:flex;gap:14px;flex-wrap:wrap;margin-top:18px;}
  .tip{flex:1 1 200px;background:var(--hover);border:1px solid var(--line);border-radius:14px;padding:16px 18px;}
  .tip.note{flex:1 1 100%;}
  .tip span{font-size:12px;color:var(--ink-soft);display:block;margin-bottom:6px;letter-spacing:.5px;}
  .tip b{font-size:16px;color:var(--ink);font-family:'Inter',sans-serif;font-weight:700;}

  /* ===== 新增：波动预警 / 目标进度条 / 智能建议 / 成就徽章 ===== */
  .alert-body{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;margin-top:6px;}
  .alert-card{display:flex;align-items:flex-start;gap:12px;padding:15px 17px;border-radius:14px;font-size:14px;line-height:1.5;
    background:linear-gradient(135deg,rgba(245,158,11,.12),rgba(248,113,113,.1));border:1px solid rgba(248,113,113,.28);color:#FED7AA;}
  .alert-card b{color:#fff;font-family:'Inter',sans-serif;}
  .alert-card small{opacity:.75;display:block;margin-top:3px;font-size:12px;}
  .alert-tag{margin-left:auto;flex:none;background:rgba(248,113,113,.16);color:#FCA5A5;font-size:12px;padding:2px 10px;border-radius:10px;font-weight:600;}
  .a-close{flex:none;cursor:pointer;opacity:.6;font-size:15px;padding:0 2px;}
  .a-close:hover{opacity:1;color:#F87171;}

  .target-prog{height:8px;border-radius:6px;background:var(--ring-track);overflow:hidden;margin-top:11px;}
  .target-prog i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#5E6AD2,#A78BFA);transition:width .8s cubic-bezier(.2,.9,.3,1);}
  .target-prog i.done{background:linear-gradient(90deg,#10B981,#34D399);}
  .target-prog-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--ink-weak);margin-top:5px;}

  .ach-dock{position:fixed;right:20px;bottom:20px;z-index:110;}
  .ach-fab{width:52px;height:52px;border-radius:50%;border:1px solid rgba(255,255,255,.12);background:rgba(24,26,33,.9);color:#EDEDED;font-size:22px;cursor:pointer;box-shadow:0 14px 34px -10px rgba(0,0,0,.7);backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;position:relative;will-change:transform;}
  .badge-count{position:absolute;top:-4px;right:-4px;background:linear-gradient(135deg,#F59E0B,#F87171);color:#fff;font-size:11px;font-weight:700;min-width:20px;height:20px;border-radius:12px;display:none;align-items:center;justify-content:center;padding:0 5px;border:2px solid #0B0D10;}
  .ach-panel{position:absolute;right:0;bottom:66px;width:320px;max-width:86vw;background:rgba(18,20,26,.97);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 24px 60px -20px rgba(0,0,0,.8);opacity:0;pointer-events:none;transform:translateY(12px);transition:all .3s;backdrop-filter:blur(18px);}
  .ach-panel.show{opacity:1;pointer-events:auto;transform:translateY(0);}
  .ach-panel h4{margin-bottom:12px;font-size:16px;color:#fff;}
  .ach-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .ach-item{border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center;opacity:.45;filter:grayscale(.6);transition:.3s;background:var(--hover);}
  .ach-item.unlocked{opacity:1;filter:none;border-color:rgba(167,139,250,.4);background:rgba(167,139,250,.1);}
  .ach-item .ic{font-size:24px;display:block;margin-bottom:4px;}
  .ach-item b{font-size:13px;color:var(--ink);display:block;}
  .ach-item span{font-size:11px;color:var(--ink-weak);}
  #toast.gold{border-top-color:#A78BFA;}

  /* ===== 新增：首次访问欢迎弹窗 ===== */
  .welcome-mask{position:fixed;inset:0;background:rgba(5,6,8,.72);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .3s ease;}
  .welcome-mask.show{opacity:1;pointer-events:auto;}
  .welcome-card{width:min(560px,100%);max-height:86vh;display:flex;flex-direction:column;background:rgba(18,20,26,.98);border:1px solid var(--line);border-radius:22px;box-shadow:0 34px 90px -24px rgba(0,0,0,.9);overflow:hidden;transform:translateY(12px) scale(.98);transition:transform .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);}
  .welcome-mask.show .welcome-card{transform:translateY(0) scale(1);}
  .welcome-head{position:relative;padding:24px 28px 18px;border-bottom:1px solid var(--line);text-align:center;flex:none;}
  .welcome-head h3{font-size:22px;color:#fff;font-family:'Inter','Noto Sans SC',sans-serif;letter-spacing:-0.01em;}
  .w-close{position:absolute;top:14px;right:16px;background:transparent;border:none;color:var(--ink-weak);font-size:20px;cursor:pointer;opacity:.7;padding:4px;}
  .w-close:hover{opacity:1;color:#fff;}
  .welcome-body{padding:12px 28px 18px;overflow-y:auto;font-size:14px;color:var(--ink-soft);line-height:1.75;}
  .welcome-body h4{font-size:13px;color:#C7CDFF;margin:18px 0 6px;font-weight:600;display:flex;align-items:center;gap:6px;}
  .welcome-body h4:first-child{margin-top:8px;}
  .welcome-body p{margin:0 0 3px;color:var(--ink-soft);}
  .welcome-foot{display:flex;gap:12px;padding:16px 28px;border-top:1px solid var(--line);background:rgba(255,255,255,.02);flex:none;}
  .welcome-foot .btn{flex:1 1 0;padding:13px;font-size:14px;text-align:center;}
  @media(max-width:560px){.welcome-body{padding:10px 20px 16px;}.welcome-foot{padding:14px 20px;flex-direction:column;}.welcome-head h3{font-size:19px}}
  /* ===== 新增：支持作者（悬浮按钮 + 赞赏弹窗） ===== */
  .reward-fab{position:fixed;top:18px;right:18px;z-index:120;display:inline-flex;align-items:center;gap:7px;padding:12px 22px;border:none;border-radius:999px;cursor:pointer;font-family:inherit;font-size:14px;font-weight:600;color:#fff;letter-spacing:.3px;background:linear-gradient(135deg,#F9A8D4,#EC4899 55%,#FB7185);box-shadow:0 12px 30px -10px rgba(236,72,153,.75),inset 0 1px 0 rgba(255,255,255,.35);will-change:transform;transition:transform .25s ease,box-shadow .25s ease;-webkit-tap-highlight-color:transparent;}
  .reward-fab .rip{font-size:16px;}
  .reward-fab:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 18px 42px -12px rgba(236,72,153,.9),inset 0 1px 0 rgba(255,255,255,.4);}
  .reward-fab:active{transform:scale(.95);}
  /* 弹窗遮罩：淡入 */
  .reward-mask{position:fixed;inset:0;background:rgba(5,6,8,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .3s ease;overflow-y:auto;}
  .reward-mask.show{opacity:1;pointer-events:auto;}
  /* 弹窗卡片：淡入 + 上滑 */
  .reward-card{position:relative;width:min(420px,100%);max-height:88vh;background:rgba(18,20,26,.98);border:1px solid var(--line);border-radius:24px;padding:32px 30px 22px;text-align:center;box-shadow:0 34px 90px -24px rgba(0,0,0,.9);opacity:0;transform:translateY(18px);transition:transform .35s cubic-bezier(.2,.9,.3,1.2),opacity .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);}
  .reward-mask.show .reward-card{opacity:1;transform:translateY(0);}
  .reward-close{position:absolute;top:12px;right:14px;background:transparent;border:none;color:var(--ink-weak);font-size:22px;cursor:pointer;opacity:.7;padding:4px;line-height:1;transition:opacity .2s;}
  .reward-close:hover{opacity:1;color:#fff;}
  .reward-card h3{font-size:20px;color:#fff;margin-bottom:10px;font-weight:700;line-height:1.4;}
  .reward-desc{color:var(--ink-soft);font-size:14px;line-height:1.7;margin-bottom:20px;}
  .reward-card img{max-width:280px;width:100%;height:auto;border-radius:16px;box-shadow:0 18px 44px -16px rgba(0,0,0,.75);display:block;margin:0 auto;}
  .reward-hint{color:var(--ink-weak);font-size:13px;margin-top:14px;}
  .reward-legal{margin-top:18px;padding-top:14px;border-top:1px dashed var(--dash);color:var(--ink-weak);font-size:12px;letter-spacing:.5px;}
  /* 移动端：缩小内边距 */
  @media(max-width:480px){
    .reward-fab{top:12px;right:12px;padding:10px 16px;font-size:13px;}
    .reward-card{padding:22px 18px 16px;}
    .reward-card img{max-width:230px;}
  }
  /* 新增：学期切换导航 */
  .sem-nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:2px 0 14px;}
  .sem-nav .sem-btn{border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink-soft);padding:8px 14px;border-radius:12px;cursor:pointer;font-family:inherit;font-size:13px;transition:all .2s;user-select:none;}
  .sem-nav .sem-btn:hover{border-color:rgba(94,106,210,.5);color:#fff;background:rgba(94,106,210,.12);}
  .sem-nav .sem-current{font-size:13px;color:#C7CDFF;background:rgba(94,106,210,.14);padding:7px 16px;border-radius:12px;font-weight:600;letter-spacing:.3px;}
  .sem-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-soft);background:var(--hover);border:1px solid var(--line);padding:5px 12px;border-radius:12px;margin-bottom:14px;}
  /* 新增：选课弹窗 */
  .subject-opt{display:flex;align-items:center;gap:10px;padding:11px 14px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;cursor:pointer;transition:all .2s;user-select:none;}
  .subject-opt.on{border-color:rgba(94,106,210,.5);background:rgba(94,106,210,.1);}
  .subject-opt input{accent-color:#5E6AD2;width:16px;height:16px;cursor:pointer;}
  .subject-opt b{flex:1;color:var(--ink);font-size:14px;}
  .subject-opt span{font-size:11px;color:var(--ink-weak);}
  .subject-opt.on span{color:#A78BFA;}
  .subj-add-row{display:flex;gap:10px;padding:0 28px 6px;}
  .subj-add-row input{flex:1;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:11px 14px;color:var(--ink);font-family:inherit;font-size:14px;outline:none;}
  .subj-add-row input:focus{border-color:rgba(94,106,210,.6);}
  @media(max-width:560px){.subj-add-row{padding:0 20px 6px;}}
  @media(max-width:700px){.card{padding:28px;}h1{font-size:3.2rem;}.hero-watermark{right:-20px;}.topbar{flex-direction:column;align-items:flex-start;gap:14px;}.stat .value{font-size:24px;}nav{top:8px;}}
  @media(max-width:560px){
    body{padding:0 12px 120px;}
    h1{font-size:2.6rem;}
    h2{font-size:1.7rem;}
    .card{padding:22px;}
    nav{display:grid;grid-template-columns:repeat(4,1fr);height:auto;padding:5px;gap:4px;overflow:visible;}
    nav::-webkit-scrollbar{display:none;}
    .tab{height:46px;padding:0 6px;font-size:12px;flex:none;width:100%;justify-content:center;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
    .today{order:2;}
    .top-actions{width:100%;}
  /* 新增：顶部操作栏布局优化 */
  .top-actions{display:flex;gap:8px;row-gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-start;}
  .mini-btn{min-height:38px;transition:all .18s ease,transform .1s ease;}
  .mini-btn:active{transform:translateY(1px) scale(.98);}
  .medium-btn{min-height:38px;}button{transition:all .18s ease;}
  @media(max-width:560px){
    .mini-btn{padding:8px 12px;font-size:12px;min-height:36px;border-radius:12px;}
    .top-actions{gap:6px;row-gap:8px;}
  }
    table{font-size:13px;}
    th,td{padding:10px 8px;}
    .score{font-size:14px;}
    .total-preview b{font-size:28px;}
    .btn{width:100%;}
    .btn-row{flex-direction:column;}
    .form-grid{grid-template-columns:1fr;}
  }
  /* 新增：移动端适配优化（防止横向溢出、内容截断） */
  @media(max-width:640px){
    /* 用 overflow-x:hidden 会创建滚动容器、导致 nav 的 position:sticky 失效，
       导航栏滚动后不吸顶就像"消失"。改用 overflow-x:clip（不建滚动容器），
       保留防横向溢出，同时让 sticky 正常吸顶。clip 不支持时回退 hidden。 */
    html,body{overflow-x:hidden;overflow-x:clip;}
    body{padding:0 14px 120px;}
    header{margin:64px 0 6px;}
    .topbar{flex-direction:column;align-items:stretch;gap:10px;}
    .today{order:-1;align-self:flex-start;}
    .top-actions{width:100%;}
    nav{top:4px;margin:24px 0 32px;}
    .hero-watermark{right:-2px;opacity:.45;}
    h1{letter-spacing:-0.02em;margin:14px 0 8px;}
    .subtitle{font-size:14px;line-height:1.6;}
    .targets{flex-direction:column;gap:12px;margin:24px 0 4px;}
    .t-card{padding:20px;}
    .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:22px;}
    .stat{padding:18px 16px;min-width:0;}
    .stat .value{font-size:24px;}
    .card{padding:20px;margin:22px 0;min-width:0;}
    h2{font-size:1.55rem;min-width:0;}
    .topbar,.top-actions,.filter-row,.form-grid,.stat,.target{min-width:0;}
    .form-grid{grid-template-columns:1fr;}
    .score-inputs{grid-template-columns:repeat(auto-fill,minmax(128px,1fr));}
  }