/* Wiązanie Much · 本站独立观感 —— 参照源站 flyanglersonline.com 的暖米底 / 顶栏分类带 / 白卡列表
   全部弹性 + 响应式：无写死 width:<px>（图标等小元素除外） */

:root {
  --bg: #f5f1eb;
  --card: #ffffff;
  --ink: #23201c;
  --muted: #6b6257;
  --accent: #4a6b3a;
  --accent-soft: #e7ecdf;
  --line: #e2dbcd;
  --rule: #cfc6b4;
  --shadow: 0 1px 2px rgba(35, 32, 28, .06), 0 6px 18px rgba(35, 32, 28, .05);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

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

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

.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(14px, 4vw, 28px);
}

/* ---------- 顶栏 ---------- */
.mast {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #fffdf8;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.mast-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-block: 12px;
}
.brand {
  font-family: var(--serif);
  font-size: 1.32rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
}
.brand small {
  font-family: var(--sans);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.navtoggle { display: none; }
.burger {
  display: none;
  width: 44px;
  height: 38px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  z-index: 62;
  position: relative;
  padding: 0;
}
.burger i, .burger i::before, .burger i::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: relative;
}
.burger i::before, .burger i::after { content: ""; position: absolute; left: 0; }
.burger i::before { top: -6px; }
.burger i::after { top: 6px; }

.topics {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.topics a {
  font-size: .95rem;
  font-weight: 600;
  color: #3b352c;
  padding-block: 4px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.topics a:hover { border-bottom-color: var(--accent); text-decoration: none; }

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(35, 32, 28, .42);
  opacity: 0;
  visibility: hidden;
  z-index: 55;
  transition: opacity .2s;
}
.navtoggle:checked ~ .scrim { opacity: 1; visibility: visible; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #fffdf8 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(26px, 6vw, 52px);
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 5.2vw, 3rem);
  line-height: 1.15;
  margin: 0 0 .5rem;
  max-width: 22ch;
}
.hero p.lead {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.12rem);
  max-width: 58ch;
}
.hero-meta {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
  font-size: .84rem;
  color: var(--muted);
}
.pill {
  background: var(--accent-soft);
  color: #3c5630;
  border-radius: 999px;
  padding: .2rem .7rem;
  font-weight: 600;
}

/* ---------- 栏目卡 ---------- */
.sec { padding-block: clamp(26px, 5vw, 46px); }
.sec > h2 {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  margin: 0 0 .3rem;
}
.sec > .sub { color: var(--muted); margin: 0 0 1.3rem; font-size: .96rem; }

.cols {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

.cardx {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: clamp(14px, 2.4vw, 22px);
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.cardx h3 { margin: 0; font-family: var(--serif); font-size: 1.18rem; }
.cardx h3 a { color: var(--ink); }
.cardx p { margin: 0; color: #4a443b; font-size: .96rem; }
.cardx .more { margin-top: auto; font-size: .9rem; font-weight: 600; }

.cardx img {
  width: 100%;
  border-radius: 7px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 文章 ---------- */
.crumbs { font-size: .84rem; color: var(--muted); padding-block: 14px; }
.crumbs a { color: var(--muted); }

.layout {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  grid-template-columns: minmax(0, 1fr);
  padding-bottom: clamp(26px, 5vw, 50px);
}
@media (min-width: 900px) {
  .layout--side { grid-template-columns: minmax(0, 1fr) minmax(220px, 300px); }
}

article.post {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(16px, 3vw, 34px);
}
article.post h1 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.2;
  margin: 0 0 .4rem;
}
.post-meta { color: var(--muted); font-size: .85rem; margin: 0 0 1.1rem; }
article.post h2 {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2.8vw, 1.4rem);
  margin: 1.7rem 0 .55rem;
  line-height: 1.28;
}
article.post p { margin: 0 0 1rem; max-width: 72ch; }
article.post ul, article.post ol { margin: 0 0 1.1rem; padding-left: 1.25rem; max-width: 72ch; }
article.post li { margin-bottom: .4rem; }
figure.postfig { margin: 0 0 1.3rem; }
figure.postfig figcaption { font-size: .83rem; color: var(--muted); margin-top: .4rem; }
.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: .7rem 1rem;
  border-radius: 0 7px 7px 0;
  margin: 0 0 1.2rem;
  font-size: .95rem;
  max-width: 72ch;
}
table.tbl { border-collapse: collapse; margin: 0 0 1.2rem; font-size: .95rem; }
.tablewrap { overflow-x: auto; max-width: 100%; }
table.tbl th, table.tbl td { border: 1px solid var(--line); padding: .45rem .7rem; text-align: left; }
table.tbl th { background: #faf7f0; }

aside.side { align-self: start; display: flex; flex-direction: column; gap: 16px; }
.box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.box h3 { margin: 0 0 .6rem; font-family: var(--serif); font-size: 1.05rem; }
.box ul { margin: 0; padding-left: 1.1rem; }
.box li { margin-bottom: .45rem; font-size: .93rem; }

/* ---------- 列表页 ---------- */
.list { display: flex; flex-direction: column; gap: 14px; }
.rowitem {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.rowitem .thumb { flex: 0 1 160px; max-width: 100%; }
.rowitem .thumb img { border-radius: 7px; aspect-ratio: 3 / 2; object-fit: cover; }
.rowitem .body { flex: 1 1 260px; min-width: 0; }
.rowitem h3 { margin: 0 0 .3rem; font-family: var(--serif); font-size: 1.12rem; }
.rowitem p { margin: 0; color: #4a443b; font-size: .95rem; }

/* ---------- 页脚 ---------- */
.foot {
  background: #2f2b24;
  color: #ded7ca;
  padding-block: clamp(24px, 4vw, 40px);
  margin-top: auto;
}
.foot-grid {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 34px);
  justify-content: space-between;
}
.foot-grid > div { flex: 1 1 220px; min-width: 0; }
.foot h4 { margin: 0 0 .6rem; font-family: var(--serif); font-size: 1rem; color: #fff; }
.foot ul { margin: 0; padding-left: 1.05rem; }
.foot li { margin-bottom: .35rem; font-size: .92rem; }
.foot a { color: #cfd8c2; }
.foot .fine { font-size: .82rem; color: #a9a191; margin-top: 1.2rem; }

/* ---------- 移动端抽屉 ---------- */
@media (max-width: 780px) {
  .burger { display: inline-flex; }
  .topics {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fffdf8;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 24px rgba(35, 32, 28, .12);
    padding: 10px clamp(14px, 4vw, 28px) 16px;
    gap: 2px;
    max-height: calc(100vh - 100%);
    overflow-y: auto;
    display: none;
    z-index: 60;
  }
  .navtoggle:checked ~ .topics { display: flex; }
  .topics a { padding: .6rem .2rem; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .mast-in { flex-wrap: nowrap; padding-block: 10px; }
}