/*! MAA-Meow 考试站 · 纸墨主题（移植自 blog classic） */
:root {
  --cinnabar: #c23a30; --cinnabar-line: rgba(194,58,48,0.15);
  --deep-blue: #2f4858; --pine: #2d6a4f; --amber: #8a6d3b; --sky: #6baed6;
  --ink-black: #1a1a2e; --ink-deep: #2a2a3e; --ink-mid: #5b5b6e;
  --ink-light: #6f6f7d; --ink-soft: #8a8a99; --ink-faint: rgba(0,0,0,0.06); --hairline: rgba(0,0,0,0.06);
  --paper-warm: #faf7f2; --paper-card: #fffef9;
  --font-brush: "Ma Shan Zheng","STKaiti","KaiTi","楷体","Kaiti SC","LXGW WenKai",cursive;
  --font-serif: "Noto Serif SC","Songti SC","SimSun","宋体","Source Han Serif SC",serif;
  --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei","微软雅黑","Heiti SC","Source Han Sans SC",sans-serif;
  --radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-pill:20px;
  --shadow-card:0 4px 20px rgba(26,26,46,0.06);--shadow-float:0 12px 36px rgba(26,26,46,0.12);
  --ease:cubic-bezier(0.4,0,0.2,1);--ease-out:cubic-bezier(0.16,1,0.3,1);
  --duration:.2s;--duration-slow:.3s;--transition:var(--duration)var(--ease);--transition-slow:var(--duration-slow)var(--ease);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
a{color:var(--cinnabar)}
body{
  font-family:var(--font-sans);color:var(--ink-deep);
  background-color:var(--paper-warm);
  background-image:radial-gradient(ellipse 60% 50% at 12% 0%,rgba(194,58,48,0.05),transparent 60%),radial-gradient(ellipse 50% 40% at 88% 8%,rgba(45,106,79,0.04),transparent 60%),repeating-linear-gradient(0deg,rgba(0,0,0,0.012) 0 1px,transparent 1px 4px),linear-gradient(180deg,#fbf8f3 0%,#f3ede3 100%);
  background-attachment:fixed;min-height:100vh;padding-bottom:48px
}
.site-nav{position:sticky;top:0;z-index:50;background:rgba(250,247,242,0.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--hairline);box-shadow:0 1px 8px rgba(26,26,46,0.04)}
.site-nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1080px;margin:0 auto;padding:0 24px}
.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink-black)}
.site-logo-seal{width:32px;height:32px;display:grid;place-items:center;background:var(--cinnabar);color:#fff;font-family:var(--font-brush);font-size:1.05rem;border-radius:5px;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,0.4),inset 0 0 0 3px var(--cinnabar)}
.site-logo-text{font-family:var(--font-brush);font-size:1.35rem;letter-spacing:.08em}
.nav-links{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav-links .nav-link{display:block;padding:6px 12px;font-size:.9rem;color:var(--ink-deep);text-decoration:none;border-radius:var(--radius-sm);transition:color var(--transition-slow)}
.nav-links .nav-link:hover,.nav-links .nav-link.active{color:var(--cinnabar)}
.container{max-width:820px;margin:0 auto;padding:32px 24px 64px}
.container.wide{max-width:1080px}
.card{background:var(--paper-card);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:36px 40px;margin-bottom:20px}
.card-tight{padding:24px 28px}
.card-title{font-family:var(--font-brush);font-size:1.5rem;letter-spacing:.08em;color:var(--ink-deep);margin:0 0 10px}
.card-title .kicker{display:block;font-family:var(--font-serif);font-size:.75rem;letter-spacing:.28em;color:var(--cinnabar);margin-bottom:8px}
.card-sub{font-family:var(--font-serif);font-size:.9rem;color:var(--ink-mid);line-height:1.9;margin:0 0 20px}
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:.85rem;color:var(--ink-mid);margin-bottom:6px;letter-spacing:.04em}
.form-input{width:100%;padding:11px 14px;font-family:var(--font-sans);font-size:.95rem;color:var(--ink-deep);background:var(--paper-card);border:1px solid var(--hairline);border-radius:var(--radius-md);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.form-input:focus{border-color:var(--cinnabar);box-shadow:0 0 0 3px var(--cinnabar-line)}
.form-input[disabled]{opacity:.55;cursor:not-allowed}
textarea.form-input{min-height:110px;resize:vertical;line-height:1.7}
.form-hint{font-size:.78rem;color:var(--ink-soft);margin-top:5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 26px;font-family:var(--font-sans);font-size:.92rem;letter-spacing:.06em;border-radius:var(--radius-pill);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:all var(--transition)}
.btn-primary{background:var(--cinnabar);color:#fff;box-shadow:0 6px 18px rgba(194,58,48,0.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(194,58,48,0.36)}
.btn-ghost{background:rgba(255,255,255,0.5);color:var(--ink-deep);border-color:var(--hairline)}
.btn-ghost:hover{border-color:var(--cinnabar);color:var(--cinnabar)}
.btn-block{width:100%}
.btn-sm{padding:7px 16px;font-size:.82rem}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}
.alert{padding:12px 16px;border-radius:var(--radius-md);font-size:.88rem;line-height:1.7;margin-bottom:16px;border:1px solid transparent}
.alert-error{background:rgba(194,58,48,0.08);border-color:var(--cinnabar-line);color:var(--cinnabar)}
.alert-info{background:rgba(47,72,88,0.08);border-color:rgba(47,72,88,0.18);color:var(--deep-blue)}
.alert-success{background:rgba(45,106,79,0.08);border-color:rgba(45,106,79,0.2);color:var(--pine)}
.alert-warn{background:rgba(138,109,59,0.1);border-color:rgba(138,109,59,0.24);color:var(--amber)}
.timer-bar{position:sticky;top:64px;z-index:40;background:rgba(250,247,242,0.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--hairline);padding:10px 24px;margin-bottom:20px}
.timer-inner{max-width:820px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}
.timer-label{font-size:.8rem;color:var(--ink-mid);letter-spacing:.06em}
.timer-value{font-family:var(--font-brush);font-size:1.35rem;color:var(--cinnabar);letter-spacing:.08em}
.timer-value.danger{animation:timerPulse 1s ease-in-out infinite}
@keyframes timerPulse{0%,100%{opacity:1}50%{opacity:.45}}
.question{border:1px solid var(--hairline);border-left:4px solid var(--cinnabar);border-radius:var(--radius-md);background:var(--paper-card);padding:22px 26px;margin-bottom:18px}
.question-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:6px}
.question-title{font-family:var(--font-serif);font-size:1.02rem;color:var(--ink-deep);line-height:1.7;margin:0}
.question-score{flex:0 0 auto;font-size:.78rem;color:var(--cinnabar);border:1px solid var(--cinnabar-line);border-radius:var(--radius-pill);padding:2px 10px;white-space:nowrap}
.question-tag{font-size:.72rem;color:var(--deep-blue);background:rgba(47,72,88,0.08);border-radius:var(--radius-pill);padding:2px 10px;margin-left:8px}
.question-extra{font-size:.82rem;color:var(--amber);margin:6px 0 10px}
.option{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;margin:8px 0;border:1px solid var(--hairline);border-radius:var(--radius-sm);cursor:pointer;transition:border-color var(--transition),background var(--transition);user-select:none}
.option:hover{border-color:var(--cinnabar-line);background:rgba(194,58,48,0.03)}
.option input{appearance:none;-webkit-appearance:none;width:18px;height:18px;margin-top:2px;border:2px solid var(--ink-light);border-radius:4px;background:var(--paper-card);display:inline-grid;place-content:center;flex:0 0 auto;cursor:pointer;transition:border-color var(--transition)}
.option input::before{content:'';width:10px;height:10px;transform:scale(0);transition:transform .12s var(--ease);background:var(--cinnabar);clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,80% 0,43% 62%)}
.option input:checked{border-color:var(--cinnabar)}
.option input:checked::before{transform:scale(1)}
.option .option-text{font-size:.92rem;line-height:1.6}
.option.selected{border-color:var(--cinnabar);background:rgba(194,58,48,0.06)}
.badge{display:inline-block;padding:3px 12px;border-radius:var(--radius-pill);font-size:.78rem;letter-spacing:.04em}
.badge-pass{background:rgba(45,106,79,0.12);color:var(--pine)}
.badge-fail{background:rgba(194,58,48,0.1);color:var(--cinnabar)}
.badge-grading{background:rgba(138,109,59,0.12);color:var(--amber)}
.badge-pending{background:var(--ink-faint);color:var(--ink-mid)}
.score-hero{text-align:center;padding:40px 24px}
.score-number{font-family:var(--font-brush);font-size:4rem;color:var(--cinnabar);line-height:1;margin:12px 0}
.score-label{font-family:var(--font-serif);font-size:.85rem;color:var(--ink-mid);letter-spacing:.2em}
.score-detail{margin-top:20px;text-align:left}
.score-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--hairline);font-size:.9rem}
.score-row:last-child{border-bottom:none}
.score-row .q-title{color:var(--ink-deep);line-height:1.5}
.score-row .q-score{color:var(--ink-mid);white-space:nowrap}
.score-row .q-score.correct{color:var(--pine)}
.score-row .q-score.wrong{color:var(--cinnabar)}
.score-row .q-answer{font-size:.8rem;color:var(--ink-light);margin-top:4px;line-height:1.6}
.table-wrap{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;font-size:.88rem;line-height:1.7}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--hairline);text-align:left}
table.data th{font-size:.78rem;letter-spacing:.08em;color:var(--ink-mid);background:rgba(194,58,48,0.04);font-weight:600;white-space:nowrap}
table.data tr:hover td{background:rgba(0,0,0,0.015)}
.pagination{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:18px;font-size:.85rem;color:var(--ink-mid)}
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.filter-bar .chip{padding:6px 16px;border-radius:var(--radius-pill);font-size:.82rem;border:1px solid var(--hairline);background:var(--paper-card);color:var(--ink-mid);cursor:pointer;transition:all var(--transition)}
.filter-bar .chip:hover{border-color:var(--cinnabar);color:var(--cinnabar)}
.filter-bar .chip.active{background:var(--cinnabar);color:#fff;border-color:var(--cinnabar)}
.empty{text-align:center;padding:48px 24px;color:var(--ink-soft);font-family:var(--font-serif);font-size:.9rem}
.empty .seal-mark{font-family:var(--font-brush);font-size:2.6rem;color:var(--cinnabar);opacity:.22;margin-bottom:10px}
.site-footer{text-align:center;padding:28px 24px calc(28px + env(safe-area-inset-bottom));color:var(--ink-soft);font-size:.78rem;letter-spacing:.05em}
.grade-box{background:rgba(47,72,88,0.04);border:1px dashed rgba(47,72,88,0.2);border-radius:var(--radius-sm);padding:12px 14px;margin-top:10px}
.grade-box .lb{font-size:.75rem;color:var(--ink-mid);margin-bottom:6px}
.grade-inputs{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.grade-inputs input[type="number"]{width:84px;padding:7px 10px;border:1px solid var(--hairline);border-radius:var(--radius-sm);font-size:.9rem;background:var(--paper-card);color:var(--ink-deep)}
.grade-comment{flex:1 1 200px;padding:7px 10px;border:1px solid var(--hairline);border-radius:var(--radius-sm);font-size:.85rem;background:var(--paper-card);color:var(--ink-deep)}
.grade-history{font-size:.78rem;color:var(--ink-soft);margin-top:8px;line-height:1.8}
.grade-history .mark{color:var(--pine);font-weight:600}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:24px}
@media(max-width:720px){.detail-grid{grid-template-columns:1fr}}
.detail-item{font-size:.88rem}
.detail-item .k{color:var(--ink-soft);font-size:.78rem;letter-spacing:.06em}
.detail-item .v{color:var(--ink-deep);margin-top:2px;font-family:var(--font-serif)}
@media(max-width:640px){.container{padding:20px 14px 48px}.card{padding:24px 18px}.card-tight{padding:18px 14px}.site-nav-inner{padding:0 14px}.timer-bar{padding:8px 14px}.question{padding:16px 14px}.score-number{font-size:3rem}}
@media(prefers-color-scheme:dark){
  :root{color-scheme:dark;--cinnabar:#e06b61;--cinnabar-line:rgba(224,107,97,0.3);--deep-blue:#7fa3b8;--pine:#70b28d;--amber:#c7a76d;--sky:#8fc8eb;--ink-deep:#eee8e1;--ink-mid:#bcb3ab;--ink-light:#948e89;--ink-soft:#a5a19e;--ink-faint:rgba(255,255,255,0.11);--hairline:rgba(255,255,255,0.11);--paper-warm:#141316;--paper-card:#1d1b20;--shadow-card:0 4px 20px rgba(0,0,0,0.3);--shadow-float:0 12px 36px rgba(0,0,0,0.44)}
  body{background-image:radial-gradient(ellipse 60% 50% at 12% 0%,rgba(224,107,97,0.08),transparent 60%),radial-gradient(ellipse 50% 40% at 88% 8%,rgba(112,178,141,0.06),transparent 60%),repeating-linear-gradient(0deg,rgba(255,255,255,0.018) 0 1px,transparent 1px 4px),linear-gradient(180deg,#19171c 0%,#111014 100%)}
  .site-nav{background:rgba(20,19,22,0.92)}.timer-bar{background:rgba(20,19,22,0.94)}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}