/* ============ 水源日报档案馆 · 报纸风格 ============ */
:root{
  --paper:#f7f3ea;
  --paper-2:#f1ebdd;
  --card:#fcf9f2;
  --ink:#221e16;
  --ink-2:#6b6252;
  --ink-3:#9a9078;
  --line:#ddd3bf;
  --line-strong:#b9ab8e;
  --accent:#b01e24;
  --accent-soft:rgba(176,30,36,.08);
  --gold:#a87f2a;
  --bronze:#9a6b3f;
  --shadow:0 1px 2px rgba(34,30,22,.05),0 8px 24px -12px rgba(34,30,22,.18);
  --shadow-hover:0 2px 4px rgba(34,30,22,.06),0 16px 36px -14px rgba(34,30,22,.28);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SF Mono","JetBrains Mono",Consolas,monospace;
}
[data-theme="dark"]{
  --paper:#171410;
  --paper-2:#131009;
  --card:#1f1a13;
  --ink:#ece4d0;
  --ink-2:#ada184;
  --ink-3:#7d7359;
  --line:#38311f;
  --line-strong:#574d33;
  --accent:#e05a55;
  --accent-soft:rgba(224,90,85,.12);
  --gold:#cfa04a;
  --bronze:#c08a58;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-hover:0 2px 4px rgba(0,0,0,.35),0 16px 36px -14px rgba(0,0,0,.7);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--paper);
  background-image:radial-gradient(rgba(120,100,60,.05) 1px,transparent 1px);
  background-size:22px 22px;
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  transition:background-color .35s,color .35s;
}
::selection{background:var(--accent);color:#fff8ee}
a{color:inherit}
.container{max-width:940px;margin:0 auto;padding:0 22px}

/* ---------- 阅读进度条 ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--gold));z-index:200;transition:width .1s linear}

/* ---------- 报头 ---------- */
.masthead{padding:34px 0 0;text-align:center}
.masthead__row{display:flex;justify-content:space-between;gap:12px;font-size:.72rem;letter-spacing:.22em;color:var(--ink-2);font-weight:500;padding-bottom:12px;flex-wrap:wrap}
.masthead__rule{height:3px;background:var(--ink);position:relative}
.masthead__rule::after{content:"";position:absolute;left:0;right:0;top:5px;height:1px;background:var(--ink)}
.masthead__rule--double{margin-top:18px}
.masthead__brand{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:26px}
.masthead__title{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(2.8rem,8vw,4.8rem);
  letter-spacing:.22em;text-indent:.22em;
  line-height:1.1;
}
.seal{
  display:grid;grid-template-columns:1fr 1fr;gap:2px;
  background:var(--accent);color:#fff8ee;
  padding:8px;border-radius:6px;
  font-family:var(--serif);font-weight:700;font-size:1.05rem;font-style:normal;
  line-height:1.15;box-shadow:var(--shadow);
  transform:rotate(3deg);
}
.seal i{font-style:normal;display:block;width:1.3em;text-align:center}
.masthead__sub{margin-top:16px;font-size:.78rem;letter-spacing:.32em;color:var(--ink-2);font-weight:500}

/* ---------- 吸顶导航 ---------- */
.topbar{
  position:sticky;top:0;z-index:100;margin-top:22px;
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:9px;padding-bottom:9px}
.topbar__group{display:flex;align-items:center;gap:8px}
.topbar__date{font-family:var(--serif);font-weight:700;font-size:.95rem;letter-spacing:.08em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.btn{
  font-family:var(--sans);font-size:.8rem;font-weight:500;
  border:1px solid var(--line-strong);background:var(--card);color:var(--ink);
  padding:.38rem .85rem;border-radius:999px;cursor:pointer;text-decoration:none;
  transition:all .18s ease;white-space:nowrap;line-height:1.4;
}
.btn:hover:not([disabled]){border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn[disabled]{opacity:.35;cursor:not-allowed}
.btn--ghost{background:transparent;border-color:transparent;color:var(--ink-2)}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--ink);box-shadow:none}
.btn--icon{padding:.38rem .62rem}
.btn--ghost{display:inline-flex;align-items:center}

/* ---------- 期号头版 ---------- */
.hero{padding:52px 0 30px;text-align:center}
.hero__kicker{font-size:.7rem;letter-spacing:.42em;color:var(--accent);font-weight:700;margin-bottom:14px}
.hero__date{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(2.4rem,7vw,4rem);line-height:1.15;letter-spacing:.06em;
}
.hero__date span{color:var(--accent);margin:0 .18em;font-weight:400}
.hero__cn{margin-top:10px;font-family:var(--serif);font-size:1.05rem;color:var(--ink-2);letter-spacing:.14em}

/* ---------- 版块标题 ---------- */
.section{padding:38px 0 8px;scroll-margin-top:76px}
.section-head{display:flex;align-items:flex-end;gap:18px;margin-bottom:22px}
.section-head__en{font-size:.66rem;letter-spacing:.4em;color:var(--accent);font-weight:700;margin-bottom:2px}
.section-head__cn{font-family:var(--serif);font-weight:900;font-size:1.65rem;letter-spacing:.1em;line-height:1.2}
.section-head__cn::before{content:"「";color:var(--accent);margin-right:.1em}
.section-head__cn::after{content:"」";color:var(--accent);margin-left:.1em}
.section-head__rule{flex:1;height:1px;background:var(--line-strong);margin-bottom:10px}
.section-head__count{font-size:.78rem;color:var(--ink-2);margin-bottom:8px;white-space:nowrap}

/* ---------- 热榜卡片 ---------- */
#hotList{display:flex;flex-direction:column;gap:16px}
.hot-card{
  display:grid;grid-template-columns:74px 1fr;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.hot-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.hot-card__rank{
  font-family:var(--serif);font-weight:900;font-size:2.5rem;line-height:1;
  color:var(--ink-3);text-align:center;padding-top:4px;user-select:none;
}
.hot-card--1{border-top:3px solid var(--accent)}
.hot-card--1 .hot-card__rank{color:var(--accent);font-size:3.1rem}
.hot-card--2 .hot-card__rank{color:var(--gold)}
.hot-card--3 .hot-card__rank{color:var(--bronze)}
.hot-card__meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:8px}
.badge{
  font-size:.7rem;font-weight:700;letter-spacing:.08em;
  color:hsl(var(--h,0) 48% 38%);
  background:hsl(var(--h,0) 45% 45% / .1);
  border:1px solid hsl(var(--h,0) 45% 45% / .35);
  padding:.14rem .6rem;border-radius:6px;
}
[data-theme="dark"] .badge{color:hsl(var(--h,0) 65% 72%);background:hsl(var(--h,0) 45% 55% / .14)}
.stat{font-size:.76rem;color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap}
.hot-card__title{font-family:var(--serif);font-size:1.22rem;font-weight:700;line-height:1.55;margin-bottom:12px}
.hot-card__title a{text-decoration:none;background-image:linear-gradient(var(--accent),var(--accent));background-size:0 2px;background-repeat:no-repeat;background-position:left bottom;transition:background-size .25s ease,color .2s}
.hot-card__title a:hover{color:var(--accent);background-size:100% 2px}
.say{position:relative;padding:10px 14px 10px 16px;border-left:3px solid var(--line-strong);background:var(--paper-2);border-radius:0 10px 10px 0;margin-top:10px}
.say--op{border-left-color:var(--accent)}
.say--dis{border-left-color:var(--gold)}
.say__label{
  position:absolute;top:-9px;left:12px;
  font-size:.64rem;font-weight:700;letter-spacing:.18em;
  background:var(--card);padding:0 .5em;border-radius:4px;
  color:var(--ink-2);
}
.say--op .say__label{color:var(--accent)}
.say--dis .say__label{color:var(--gold)}
.say p{font-size:.9rem;color:var(--ink);margin-top:4px}
.say p strong{color:var(--accent)}
.chip-link{
  display:inline-block;margin-top:8px;font-size:.74rem;font-weight:500;
  color:var(--accent);text-decoration:none;
  border:1px solid hsl(from var(--accent) h s l / .4);
  padding:.16rem .7rem;border-radius:999px;transition:all .18s;
}
.chip-link:hover{background:var(--accent);color:#fff8ee}

/* ---------- 校园资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(288px,1fr));gap:14px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:9px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.news-card .tag{
  align-self:flex-start;font-size:.68rem;font-weight:700;letter-spacing:.1em;
  color:hsl(var(--h,0) 48% 38%);background:hsl(var(--h,0) 45% 45% / .1);
  border:1px solid hsl(var(--h,0) 45% 45% / .3);
  padding:.12rem .58rem;border-radius:6px;
}
[data-theme="dark"] .news-card .tag{color:hsl(var(--h,0) 65% 72%);background:hsl(var(--h,0) 45% 55% / .14)}
.news-card__text{font-size:.86rem;color:var(--ink)}
.news-card__text strong{color:var(--accent)}
.news-card__srcs{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:4px}
.src{
  font-size:.68rem;color:var(--ink-2);text-decoration:none;
  border:1px solid var(--line);border-radius:5px;padding:.06rem .5rem;
  transition:all .15s;
}
.src:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- 各楼精选 ---------- */
#floorsWrap{display:flex;flex-direction:column;gap:18px}
.floor{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);overflow:hidden;
}
.floor__head{
  display:flex;align-items:center;gap:12px;
  padding:14px 20px;border-bottom:1px solid var(--line);
  background:var(--paper-2);
}
.floor__idx{
  font-family:var(--serif);font-weight:900;font-size:1rem;
  width:30px;height:30px;border-radius:8px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--paper);
}
.floor__name{font-family:var(--serif);font-weight:700;font-size:1.06rem;text-decoration:none;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.floor__name:hover{color:var(--accent)}
.floor__count{font-size:.7rem;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:.1rem .6rem;white-space:nowrap}
.floor__goto{font-size:.85rem;color:var(--ink-3);text-decoration:none;transition:color .15s}
.floor__goto:hover{color:var(--accent)}
.floor__entries{padding:8px 20px 16px}
.entry{display:flex;gap:13px;padding:12px 0;border-bottom:1px dashed var(--line)}
.entry:last-child{border-bottom:none}
.avatar{
  flex:none;width:34px;height:34px;border-radius:10px;margin-top:2px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:.92rem;
  color:#fff8ee;background:hsl(var(--h,0) 42% 46%);
  box-shadow:inset 0 -2px 4px rgba(0,0,0,.18);
}
.entry__body{flex:1;min-width:0}
.entry__meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;margin-bottom:2px}
.entry__meta b{font-size:.86rem}
.entry__meta time{font-size:.7rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.entry__text{font-size:.88rem;color:var(--ink)}
.entry__text strong{color:var(--accent)}
.entry__link{
  font-size:.7rem;color:var(--accent);text-decoration:none;margin-left:6px;
  border-bottom:1px dotted var(--accent);white-space:nowrap;
}
.entry__link:hover{border-bottom-style:solid}

/* ---------- 沉楼清单 ---------- */
.quiet{margin-top:26px;border:1px dashed var(--line-strong);border-radius:12px;padding:18px 22px;background:var(--paper-2)}
.quiet__title{font-family:var(--serif);font-weight:700;font-size:1rem;color:var(--ink-2);margin-bottom:10px}
.quiet ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:6px 20px}
.quiet li{font-size:.8rem;color:var(--ink-2);display:flex;gap:6px;align-items:baseline;min-width:0}
.quiet li::before{content:"·";color:var(--accent);font-weight:900}
.quiet li a{color:var(--ink);text-decoration:none;border-bottom:1px dotted var(--line-strong);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.quiet li a:hover{color:var(--accent)}
.quiet li span{color:var(--ink-3);font-size:.72rem;white-space:nowrap}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:70px;padding:34px 0 46px;text-align:center}
.site-footer__note{font-family:var(--serif);font-style:italic;color:var(--ink-2);font-size:.86rem;margin-bottom:20px}
.site-footer__meta{margin-top:20px;font-size:.74rem;letter-spacing:.12em;color:var(--ink-3)}
.site-footer__meta a{color:var(--ink-2);text-decoration:none;border-bottom:1px dotted var(--line-strong)}
.site-footer__meta a:hover{color:var(--accent)}

/* ---------- 档案抽屉 ---------- */
.overlay{position:fixed;inset:0;background:rgba(20,16,10,.45);backdrop-filter:blur(2px);z-index:300;opacity:0;transition:opacity .25s}
.overlay.show{opacity:1}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:301;
  width:min(380px,92vw);
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.32,.72,.24,1);
  display:flex;flex-direction:column;box-shadow:-20px 0 50px -20px rgba(0,0,0,.3);
}
.drawer.show{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px 14px;border-bottom:1px solid var(--line)}
.drawer__title{font-family:var(--serif);font-weight:900;font-size:1.2rem;letter-spacing:.1em}
.drawer__sub{font-size:.72rem;color:var(--ink-2);margin-top:2px}
.drawer__list{flex:1;overflow-y:auto;padding:10px 14px 24px}
.drawer__month{font-size:.7rem;letter-spacing:.3em;color:var(--accent);font-weight:700;padding:16px 8px 8px}
.drawer__item{
  display:flex;align-items:baseline;justify-content:space-between;gap:10px;width:100%;
  background:none;border:none;cursor:pointer;text-align:left;
  font-family:var(--serif);font-size:.95rem;color:var(--ink);
  padding:9px 12px;border-radius:9px;transition:background .15s;
}
.drawer__item:hover{background:var(--paper-2)}
.drawer__item.is-active{background:var(--accent-soft);color:var(--accent);font-weight:700}
.drawer__wd{font-size:.7rem;color:var(--ink-3);font-family:var(--sans)}

/* ---------- 浮动按钮 ---------- */
.fabs{position:fixed;right:22px;bottom:24px;z-index:150;display:flex;flex-direction:column;gap:10px}
.fab{
  font-family:var(--sans);font-size:.76rem;font-weight:500;cursor:pointer;
  background:var(--card);color:var(--ink);border:1px solid var(--line-strong);
  border-radius:999px;padding:.5rem 1rem;box-shadow:var(--shadow);
  transition:all .18s;
}
.fab:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.fab--accent{background:var(--accent);border-color:var(--accent);color:#fff8ee}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,80px);
  background:var(--ink);color:var(--paper);font-size:.82rem;
  padding:.6rem 1.3rem;border-radius:999px;z-index:400;
  opacity:0;transition:all .3s ease;pointer-events:none;max-width:86vw;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 骨架屏 ---------- */
.sk{border-radius:12px;background:linear-gradient(100deg,var(--paper-2) 40%,var(--card) 50%,var(--paper-2) 60%);background-size:200% 100%;animation:sk 1.3s infinite;border:1px solid var(--line)}
@keyframes sk{to{background-position:-200% 0}}
.sk--hero{height:150px;margin:52px 0 30px}
.sk--card{height:150px;margin-bottom:16px}

/* ---------- 空状态 / 错误 ---------- */
.empty{padding:70px 20px;text-align:center;border:1px dashed var(--line-strong);border-radius:16px;margin:40px 0}
.empty__icon{font-size:2.4rem;margin-bottom:12px}
.empty h3{font-family:var(--serif);font-size:1.3rem;margin-bottom:10px}
.empty p{font-size:.85rem;color:var(--ink-2);max-width:520px;margin:0 auto 8px}
.empty code{font-family:var(--mono);font-size:.76rem;background:var(--paper-2);border:1px solid var(--line);border-radius:6px;padding:.14rem .5rem;color:var(--accent);word-break:break-all}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .55s ease,transform .55s ease}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:760px){
  .topbar__date{display:none}
  .topbar__inner{justify-content:flex-start;overflow-x:auto;scrollbar-width:none}
  .topbar__inner::-webkit-scrollbar{display:none}
  .hot-card{grid-template-columns:1fr;gap:6px;padding:18px}
  .hot-card__rank{text-align:left;font-size:1.8rem}
  .hot-card--1 .hot-card__rank{font-size:2.1rem}
  .masthead__brand{gap:14px}
  .seal{font-size:.85rem}
  .masthead__row{justify-content:center;text-align:center}
}
@media (max-width:400px){
  .btn{padding:.34rem .68rem;font-size:.74rem}
}

/* ---------- 打印 ---------- */
@media print{
  .topbar,.fabs,.drawer,.overlay,.progress,.toast{display:none!important}
  body{background:#fff}
  .hot-card,.news-card,.floor{box-shadow:none;break-inside:avoid}
  .reveal{opacity:1;transform:none}
}

/* ---------- 折叠交互 ---------- */
.section-head{cursor:pointer;user-select:none;border-radius:8px}
.section-head:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.section-head:hover .section-head__cn{color:var(--accent)}
.section-head__chevron{font-size:.85rem;color:var(--ink-3);margin-bottom:8px;transition:transform .3s ease;flex:none}
.section--collapsed .section-head__chevron{transform:rotate(-90deg)}
.section-body{display:grid;grid-template-rows:1fr;transition:grid-template-rows .45s cubic-bezier(.32,.72,.24,1)}
.section-body__inner{min-height:0;overflow:hidden}
.section--collapsed .section-body{grid-template-rows:0fr}
.section--collapsed{padding-bottom:0}
.btn--mini{font-size:.68rem;padding:.16rem .6rem;flex:none}
.floor__head{cursor:pointer;user-select:none}
.floor__head:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.floor__head:hover .floor__name{color:var(--accent)}
.floor__chevron{font-size:.8rem;color:var(--ink-3);transition:transform .3s ease;flex:none}
.floor--collapsed .floor__chevron{transform:rotate(-90deg)}
.floor--collapsed .floor__head{border-bottom-color:transparent}
.floor__body{display:grid;grid-template-rows:1fr;transition:grid-template-rows .4s cubic-bezier(.32,.72,.24,1)}
.floor__body-inner{min-height:0;overflow:hidden}
.floor--collapsed .floor__body{grid-template-rows:0fr}