/* style.css —— 「Paper & Ink」主题（浅色优先，衬线标题）
   与中文站的「墨夜 / 深色优先 / 无衬线」完全不同的视觉语言 */

:root {
  --paper: #faf8f3;
  --paper-2: #f3efe6;
  --card: #ffffff;
  --ink: #1a1a17;
  --ink-2: #4a4a42;
  --ink-3: #8a887c;
  --line: #e2ddd0;
  --accent: #14432f;
  --accent-2: #2c6b4a;
  --accent-soft: #e7efe9;
  --serif: Georgia, 'Source Serif Pro', 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --r: 6px;
  --side: 216px;
  --shadow: 0 1px 2px rgba(26, 26, 23, .06), 0 8px 24px rgba(26, 26, 23, .05);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.6 var(--sans);
  font-feature-settings: 'kern' 1;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; margin: 0; }
h1 { font-size: 30px; line-height: 1.25; }
h2 { font-size: 20px; }
img { display: block; max-width: 100%; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: var(--card); padding: 8px 12px; border-radius: var(--r); z-index: 999; }

/* ---------- 布局：左侧竖导航 ---------- */
.shell { display: grid; grid-template-columns: var(--side) minmax(0, 1fr); gap: 40px; max-width: 1320px; margin: 0 auto; padding: 0 28px; }

.side {
  position: sticky; top: 0; align-self: start; height: 100vh;
  display: flex; flex-direction: column; gap: 22px;
  padding: 26px 0 20px; border-right: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 17px; font-weight: 600; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 30px; height: 30px; display: grid; place-items: center;
  background: var(--accent); color: var(--paper); border-radius: 5px; font-size: 16px;
}
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { padding: 8px 12px; border-radius: var(--r); color: var(--ink-2); font-size: 14px; }
.nav a:hover { background: var(--paper-2); text-decoration: none; }
.nav a.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.search input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--card); font-size: 13px; color: var(--ink);
}
.search input:focus { outline: 2px solid var(--accent-2); outline-offset: 1px; border-color: transparent; }

.side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 4px; font-size: 12px; }
.side-foot a { color: var(--ink-3); }

main { padding: 32px 0 60px; min-width: 0; }

.foot { grid-column: 2; border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--ink-3); font-size: 12px; }
.foot p { margin: 0 0 6px; }
.foot .tiny { font-size: 11px; opacity: .8; }

/* ---------- 通用块 ---------- */
.hero { padding: 6px 0 26px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.hero h1 { font-size: 38px; }
.lede { color: var(--ink-2); margin: 10px 0 0; max-width: 70ch; font-size: 14px; }
.sec { margin: 0 0 44px; }
.sec-hd { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.sec-hd h1, .sec-hd h2 { margin: 0; }
.count, .more { font-size: 13px; color: var(--ink-3); white-space: nowrap; }
.more:hover { color: var(--accent); }

.crumb { font-size: 12px; color: var(--ink-3); margin-bottom: 10px; }
.crumb a { color: var(--ink-3); }
.crumb span { color: var(--ink-2); }

.muted { color: var(--ink-3); }
.loading { padding: 40px 0; color: var(--ink-3); }

/* ---------- 卡片网格：4 列固定 ---------- */
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px 18px; }
.card { display: block; color: inherit; }
.card:hover { text-decoration: none; }
.card-img {
  aspect-ratio: 250 / 353; overflow: hidden; border-radius: var(--r);
  background: var(--paper-2); border: 1px solid var(--line);
}
.card-img img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform .35s ease; }
.card:hover .card-img img { transform: scale(1.03); }
.card-t {
  margin-top: 8px; font-size: 13px; line-height: 1.35; color: var(--ink);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-m { margin-top: 3px; font-size: 11px; color: var(--ink-3); letter-spacing: .02em; text-transform: uppercase; }

/* ---------- 标签 chip ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 11px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); color: var(--ink-2); font-size: 13px;
}
.chip:hover { border-color: var(--accent-2); color: var(--accent); text-decoration: none; }
.chip b { font-size: 11px; color: var(--ink-3); font-weight: 500; }
.rel { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.rel h2 { margin-bottom: 12px; }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin: 36px 0 0; }
.pg { padding: 8px 16px; border: 1px solid var(--line); border-radius: var(--r); font-size: 13px; color: var(--ink-2); background: var(--card); }
.pg:hover { border-color: var(--accent-2); color: var(--accent); text-decoration: none; }
.pg.now { border: 0; background: none; color: var(--ink-3); }

/* ---------- 作品页 ---------- */
.work { max-width: 1040px; }
.work h1 { font-size: 34px; margin-bottom: 6px; }
.work .alt { color: var(--ink-3); font-size: 14px; margin: 0 0 10px; }
.wmeta { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.wmeta span { font-size: 12px; color: var(--ink-2); background: var(--paper-2); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; }
.wacts { display: flex; gap: 10px; margin-bottom: 26px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px; border-radius: var(--r); border: 1px solid var(--accent);
  background: var(--accent); color: var(--paper); font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--accent-2); border-color: var(--accent-2); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--accent-soft); }

.wgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 28px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.wblock h2 { font-family: var(--sans); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-bottom: 8px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 12px; padding: 4px 9px; background: var(--card); border: 1px solid var(--line); border-radius: 5px; color: var(--ink-2); }
.tag:hover { border-color: var(--accent-2); color: var(--accent); text-decoration: none; }

.pgrid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.pv { display: block; border-radius: 4px; overflow: hidden; border: 1px solid var(--line); }
.pv img { width: 100%; aspect-ratio: 250 / 353; object-fit: cover; }

/* ---------- 阅读器 ---------- */
.reader { max-width: 1100px; margin: 0 auto; }
.rd-bar { display: flex; align-items: center; gap: 14px; padding: 10px 0 16px; border-bottom: 1px solid var(--line); font-size: 13px; }
.rd-bar #rd-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); }
.rd-stage { display: flex; justify-content: center; gap: 4px; padding: 20px 0; min-height: 60vh; }
.rd-stage img { max-width: 100%; max-height: 82vh; object-fit: contain; background: var(--paper-2); }
.rd-stage img.half { max-width: calc(50% - 2px); }
.rd-nav { display: flex; justify-content: center; align-items: center; gap: 18px; padding: 10px 0 40px; }
.rd-nav button { padding: 10px 20px; border: 1px solid var(--line); background: var(--card); border-radius: var(--r); font-size: 14px; cursor: pointer; }
.rd-nav button:disabled { opacity: .4; cursor: default; }

/* ---------- 索引页 ---------- */
.az { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 26px; }
.az a { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 5px; font-size: 12px; color: var(--ink-2); }
.az a:hover { border-color: var(--accent-2); color: var(--accent); text-decoration: none; }
.az-grp { margin-bottom: 26px; }
.az-grp h2 { font-size: 15px; color: var(--ink-3); margin-bottom: 10px; }

.doc { max-width: 72ch; }
.doc p { margin: 0 0 14px; color: var(--ink-2); }
.doc h1 { margin-bottom: 18px; }

/* ---------- 年龄门 ---------- */
.gate { position: fixed; inset: 0; z-index: 500; background: rgba(26, 26, 23, .92); display: grid; place-items: center; padding: 24px; }
.gate[hidden] { display: none; }
.gate-box { background: var(--paper); border-radius: 10px; padding: 30px 32px; max-width: 460px; }
.gate-box h2 { margin-bottom: 12px; }
.gate-box p { color: var(--ink-2); font-size: 14px; }
.gate-acts { display: flex; gap: 10px; margin: 18px 0 12px; flex-wrap: wrap; }
.gate-note { font-size: 11px; color: var(--ink-3); margin: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pgrid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; gap: 0; padding: 0 18px; }
  .side {
    position: static; height: auto; flex-direction: row; align-items: center; gap: 14px;
    padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line);
    overflow-x: auto; -webkit-overflow-scrolling: touch;
  }
  .brand span:not(.mark) { display: none; }
  .nav { flex-direction: row; gap: 0; }
  .nav a { padding: 7px 10px; white-space: nowrap; }
  .search { display: none; }
  .side-foot { display: none; }
  main { padding: 22px 0 40px; }
  .foot { grid-column: 1; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 12px; }
  .pgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero h1 { font-size: 28px; }
  .work h1 { font-size: 24px; }
  .wgrid { grid-template-columns: 1fr; }
  .rd-stage img, .rd-stage img.half { max-width: 100%; }
}

@media (max-width: 420px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* 焦点可见（无障碍） */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-2); outline-offset: 2px;
}

/* 作品页格式标记（非交互） */
.wacts .fmt { display: inline-flex; align-items: center; font-size: 12px; color: var(--ink-3); letter-spacing: .02em; }

/* 页脚索引导航（爬虫入口 + 用户路径） */
.foot-nav {
  display: flex; flex-wrap: wrap; gap: 6px 16px;
  margin-bottom: 10px; padding-bottom: 10px;
  border-bottom: 1px solid var(--line, #e6e0d4);
}
.foot-nav a { font-size: 13px; color: var(--ink-2, #4a463d); text-decoration: none; }
.foot-nav a:hover { color: var(--accent, #14432f); text-decoration: underline; }

/* 相关作品列表（预渲染页与 worker 注入的壳页共用） */
.rel-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.rel-list li { display: flex; gap: 10px; align-items: baseline; font-size: 14px; line-height: 1.5; }
.rel-list li a { color: var(--ink, #24211b); text-decoration: none; }
.rel-list li a:hover { color: var(--accent, #14432f); text-decoration: underline; }
.rel-list li span { color: var(--ink-3, #8a857a); font-size: 12px; white-space: nowrap; }

/* 无落地页的实体：纯文本标签，不给爬虫造死链 */
.tag.flat { color: var(--ink-3); background: transparent; border-style: dashed; }