/* ============================================
   报恩这件小事 · 网站样式
   设计取向:书页 / 民国信笺 / 暖橙夕阳
   ============================================ */

:root{
  --paper:#F5EFE6;
  --paper-2:#EFE8DC;
  --ink:#1A1A1A;
  --ink-soft:#2D2D2D;
  --mist:#7A7A72;
  --persimmon:#C85A3A;
  --persimmon-soft:#D87A5A;
  --plum:#722F37;
  --gold:#B58D3F;
  --line:#D9CFBE;
  --line-soft:#E8DFCE;

  --serif:"Noto Serif SC","Source Han Serif","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --brush:"Ma Shan Zheng",var(--serif);

  --max-width:760px;
  --max-wide:1100px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--serif);
  font-weight:400;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

a{color:var(--persimmon);text-decoration:none}
a:hover{color:var(--plum)}

img{max-width:100%;display:block}

/* ============================================
   顶部导航
   ============================================ */
.topnav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(245,239,230,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .3s, background .3s;
}
.topnav.scrolled{
  box-shadow:0 1px 0 var(--line-soft), 0 6px 20px -8px rgba(0,0,0,0.06);
}
.nav-inner{
  max-width:var(--max-wide);
  margin:0 auto;
  padding:14px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  font-family:var(--serif);
  font-weight:700;
  font-size:17px;
  letter-spacing:.05em;
  color:var(--ink);
}
.brand:hover{color:var(--persimmon)}
.nav-links{display:flex;gap:24px;flex-wrap:wrap}
.nav-links a{
  color:var(--mist);
  font-family:var(--sans);
  font-size:14px;
  font-weight:400;
  letter-spacing:.04em;
}
.nav-links a:hover{color:var(--persimmon)}

/* ============================================
   Hero
   ============================================ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.hero-img{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  filter:saturate(1.05);
  z-index:1;
}
.hero-overlay{
  position:absolute;inset:0;z-index:2;
  background:
    radial-gradient(ellipse at center, rgba(245,239,230,0.25) 0%, rgba(26,26,26,0.55) 70%, rgba(26,26,26,0.78) 100%),
    linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.3) 100%);
}
.hero-content{
  position:relative;z-index:3;
  text-align:center;
  color:#F8F2E5;
  padding:24px;
  max-width:760px;
}
.hero-eyebrow{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.4em;
  text-transform:uppercase;
  color:rgba(248,242,229,0.7);
  margin:0 0 16px;
}
.hero-title{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(48px,9vw,108px);
  line-height:1.05;
  margin:0 0 12px;
  letter-spacing:.04em;
  text-shadow:0 4px 28px rgba(0,0,0,0.4);
}
.hero-subtitle{
  font-family:var(--brush);
  font-size:clamp(18px,2.8vw,26px);
  color:rgba(248,242,229,0.85);
  margin:0 0 32px;
  letter-spacing:.2em;
}
.hero-meta{
  display:inline-flex;
  gap:14px;
  font-family:var(--sans);
  font-size:13px;
  color:rgba(248,242,229,0.75);
  letter-spacing:.1em;
  margin-bottom:48px;
  flex-wrap:wrap;
  justify-content:center;
}
.hero-meta .dot{color:rgba(248,242,229,0.4)}
.hero-cta{
  display:inline-block;
  padding:14px 38px;
  border:1px solid rgba(248,242,229,0.45);
  border-radius:2px;
  color:#F8F2E5;
  font-family:var(--sans);
  font-size:14px;
  letter-spacing:.3em;
  transition:all .3s;
}
.hero-cta:hover{
  background:rgba(200,90,58,0.85);
  border-color:transparent;
  color:#fff;
}

/* ============================================
   Container
   ============================================ */
.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 24px;
}
.container.narrow{max-width:var(--max-width)}

/* ============================================
   Intro card
   ============================================ */
#intro{padding:96px 24px 64px;text-align:center}
.intro-card{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:48px 0;
}
.intro-quote{
  font-family:var(--brush);
  font-size:clamp(20px,3vw,28px);
  line-height:1.8;
  color:var(--persimmon);
  margin:0 0 32px;
  letter-spacing:.05em;
}
.intro-body{
  font-size:17px;
  line-height:2;
  color:var(--ink-soft);
  margin:0 0 16px;
}
.intro-body.small{font-size:15px}
.muted{color:var(--mist)}

/* ============================================
   Section title
   ============================================ */
.section-title{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(28px,4.5vw,40px);
  text-align:center;
  margin:96px 0 12px;
  letter-spacing:.06em;
  color:var(--ink);
  position:relative;
}
.section-title::after{
  content:"";
  display:block;
  width:48px;
  height:2px;
  background:var(--persimmon);
  margin:24px auto 0;
}
.section-by{
  display:block;
  font-family:var(--sans);
  font-size:13px;
  font-weight:400;
  letter-spacing:.4em;
  color:var(--mist);
  margin-top:10px;
  text-transform:uppercase;
}

/* ============================================
   Story prose
   ============================================ */
.story{padding-bottom:64px}
.prose{
  font-size:17.5px;
  line-height:2.05;
  margin-top:48px;
}
.prose h3{
  font-family:var(--brush);
  font-size:34px;
  text-align:center;
  margin:64px 0 24px;
  color:var(--persimmon);
  letter-spacing:.2em;
  font-weight:400;
}
.prose h3.epilogue{
  font-size:28px;
  letter-spacing:.5em;
  color:var(--plum);
  margin-top:80px;
}
.prose p{
  margin:0 0 1em;
  text-indent:2em;
  text-align:justify;
}
.prose p strong{
  color:var(--plum);
  font-weight:500;
}
.prose blockquote{
  margin:24px auto;
  padding:16px 24px;
  border-left:3px solid var(--persimmon);
  background:var(--paper-2);
  font-style:italic;
  color:var(--ink-soft);
  font-size:16px;
  text-indent:0;
}
.prose blockquote em{font-style:italic}
.prose blockquote.seal{
  border:none;
  background:transparent;
  text-align:center;
  font-family:var(--brush);
  font-size:48px;
  letter-spacing:.6em;
  color:var(--persimmon);
  padding:32px 0;
}
.prose blockquote.seal strong{
  font-weight:400;
  color:var(--persimmon);
}
.prose .separator{
  text-align:center;
  text-indent:0;
  color:var(--mist);
  margin:32px 0;
  font-size:24px;
  letter-spacing:1em;
}
.prose .end{
  text-align:center;
  text-indent:0;
  color:var(--mist);
  margin-top:64px;
  letter-spacing:.3em;
  font-style:italic;
}

/* Scene illustrations */
.scene-img{
  margin:48px -40px;
  text-align:center;
}
.scene-img img{
  border-radius:2px;
  box-shadow:0 14px 50px -16px rgba(0,0,0,0.35), 0 4px 12px -4px rgba(0,0,0,0.15);
  width:100%;
}
.scene-img figcaption{
  margin-top:12px;
  font-family:var(--sans);
  font-size:13px;
  color:var(--mist);
  letter-spacing:.2em;
}

@media (max-width:720px){
  .scene-img{margin:32px -24px}
  .scene-img img{border-radius:0}
}

/* ============================================
   Process / round cards
   ============================================ */
.process{padding-bottom:64px}
.process .lead{
  text-align:center;
  font-size:17px;
  color:var(--ink-soft);
  max-width:600px;
  margin:48px auto 64px;
  line-height:1.9;
}
.round-card{
  background:#fffdf8;
  border:1px solid var(--line);
  border-radius:4px;
  padding:36px 32px;
  margin:0 0 36px;
  box-shadow:0 1px 0 var(--line);
}
.round-card.final{
  background:linear-gradient(180deg,#fffaf0 0%,#fffdf8 100%);
  border-color:var(--gold);
  box-shadow:0 12px 36px -16px rgba(181,141,63,0.3);
}
.round-head{
  display:flex;
  align-items:baseline;
  gap:16px;
  flex-wrap:wrap;
  border-bottom:1px solid var(--line-soft);
  padding-bottom:18px;
  margin-bottom:24px;
}
.round-num{
  font-family:var(--sans);
  font-weight:300;
  font-size:42px;
  color:var(--persimmon);
  letter-spacing:.05em;
  line-height:1;
}
.round-head h3{
  margin:0;
  font-family:var(--serif);
  font-weight:700;
  font-size:22px;
  letter-spacing:.1em;
  flex:1;
}
.round-score{
  font-family:var(--sans);
  font-size:14px;
  color:var(--mist);
  font-weight:500;
}
.round-score .delta{
  color:var(--persimmon);
  font-size:13px;
  margin-left:6px;
}

.masters-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:20px;
  margin:24px 0;
}
.master{
  padding:18px 16px;
  background:var(--paper-2);
  border-left:2px solid var(--persimmon-soft);
  border-radius:0 2px 2px 0;
}
.master-name{
  font-family:var(--serif);
  font-weight:700;
  font-size:16px;
  color:var(--plum);
  margin-bottom:4px;
}
.master-score{
  font-family:var(--sans);
  font-weight:300;
  font-size:32px;
  color:var(--ink);
  line-height:1;
  margin-bottom:10px;
}
.master-score .delta{
  font-size:13px;
  color:var(--persimmon);
  margin-left:4px;
  font-weight:500;
}
.master p{
  font-size:14.5px;
  line-height:1.7;
  margin:6px 0 0;
  color:var(--ink-soft);
}
.master p.keep-tag{
  color:#2D7A4E;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.2em;
  margin:0 0 8px;
  font-weight:500;
}
.master p strong{color:var(--plum);font-weight:500}

.round-summary{
  margin-top:24px;
  padding-top:20px;
  border-top:1px dashed var(--line-soft);
}
.round-summary h4{
  font-family:var(--serif);
  font-size:15px;
  font-weight:700;
  margin:18px 0 10px;
  color:var(--ink);
  letter-spacing:.1em;
}
.round-summary ul{
  margin:0 0 12px;
  padding-left:24px;
  font-size:15px;
  line-height:1.95;
  color:var(--ink-soft);
}
.round-summary ul strong{color:var(--plum);font-weight:500}

.rewrite{
  margin:14px 0;
  padding:14px 18px;
  background:var(--paper);
  border:1px solid var(--line-soft);
  border-radius:2px;
}
.rewrite-author{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.25em;
  color:var(--persimmon);
  margin-bottom:8px;
  font-weight:500;
  text-transform:uppercase;
}
.rewrite p{
  margin:0;
  font-style:italic;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}
.rewrite-note{
  display:block;
  margin-top:8px;
  font-style:normal;
  font-size:13px;
  color:var(--mist);
}

.declare-stable{
  margin-top:28px;
  padding:24px;
  text-align:center;
  background:var(--paper);
  border-radius:2px;
}
.declare-stable p{margin:0;color:var(--mist);font-family:var(--sans);font-size:13px;letter-spacing:.2em}
.declare-stable p.big{
  font-family:var(--serif);
  font-weight:700;
  font-size:20px;
  color:var(--gold);
  letter-spacing:.4em;
  margin-top:10px;
}

/* ============================================
   Scores
   ============================================ */
.scores{padding-bottom:64px}
.score-table{
  width:100%;
  border-collapse:collapse;
  margin:48px 0 56px;
  font-family:var(--sans);
  background:#fffdf8;
  border:1px solid var(--line);
}
.score-table th,
.score-table td{
  padding:14px 16px;
  text-align:center;
  border-bottom:1px solid var(--line-soft);
}
.score-table th{
  font-weight:500;
  font-size:13px;
  letter-spacing:.2em;
  color:var(--mist);
  background:var(--paper-2);
  text-transform:uppercase;
}
.score-table td{font-size:16px}
.score-table td:first-child{font-family:var(--serif);font-weight:700;text-align:left;color:var(--plum)}
.score-table td strong{color:var(--persimmon)}
.score-table tr.avg{
  background:var(--paper-2);
}
.score-table tr.avg td{
  font-weight:700;
  font-size:17px;
  border-top:2px solid var(--gold);
  border-bottom:none;
}

.score-grade{
  display:flex;
  align-items:center;
  gap:32px;
  padding:36px;
  background:linear-gradient(135deg,#fff8ea 0%,#fffdf8 100%);
  border:1px solid var(--gold);
  border-radius:4px;
  box-shadow:0 12px 36px -20px rgba(181,141,63,0.4);
}
.grade-letter{
  font-family:var(--serif);
  font-weight:900;
  font-size:96px;
  color:var(--gold);
  line-height:1;
  flex-shrink:0;
}
.grade-detail{flex:1}
.grade-num{
  font-family:var(--sans);
  font-size:36px;
  font-weight:300;
  color:var(--ink);
  line-height:1;
  margin-bottom:6px;
}
.grade-num span{font-size:18px;color:var(--mist)}
.grade-label{
  font-family:var(--serif);
  font-size:18px;
  color:var(--plum);
  font-weight:500;
  margin-bottom:8px;
  letter-spacing:.1em;
}
.grade-detail .muted{
  font-family:var(--sans);
  font-size:12px;
  margin:0;
  letter-spacing:.05em;
  line-height:1.7;
}

@media (max-width:560px){
  .score-grade{flex-direction:column;text-align:center;gap:16px;padding:28px}
  .grade-letter{font-size:80px}
}

/* ============================================
   About
   ============================================ */
.about{padding-bottom:96px}
.about-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:32px;
  margin:48px 0;
}
.about h4{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.3em;
  color:var(--persimmon);
  margin:0 0 8px;
  text-transform:uppercase;
  font-weight:500;
}
.about p{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}

.dedication{
  margin:64px 0 0;
  padding:36px 24px;
  text-align:center;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.dedication p{
  font-family:var(--brush);
  font-size:clamp(18px,2.6vw,24px);
  color:var(--plum);
  letter-spacing:.1em;
  line-height:2;
  margin:0;
}

/* ============================================
   Footer
   ============================================ */
.footer{
  padding:48px 24px 64px;
  text-align:center;
  border-top:1px solid var(--line-soft);
  color:var(--mist);
  font-family:var(--sans);
}
.footer p{margin:6px 0;font-size:14px}
.footer .small{font-size:12px;letter-spacing:.05em}

/* ============================================
   Responsive
   ============================================ */
@media (max-width:680px){
  body{font-size:16px}
  .nav-inner{padding:12px 18px}
  .nav-links{gap:14px}
  .nav-links a{font-size:13px}
  .container{padding:0 18px}
  .prose{font-size:16.5px}
  .prose p{text-indent:1.8em}
  .round-card{padding:24px 20px}
  .round-head{gap:12px}
  .round-num{font-size:36px}
  .round-head h3{font-size:18px}
}