:root {
  --paper: #fdf8f6;
  --paper-2: #fbeeec;
  --ink: #241b21;
  --accent: #d13b83;
  --accent-soft: #f7dbe8;
  --coral: #ef7a72;
  --muted: #7c6f76;
  --line: #ecdcda;
  --line-2: #ddc8c6;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", SimSun, Georgia, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.7 var(--sans);
}

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

.wrap { width: min(880px, calc(100% - 48px)); margin: 0 auto; }

/* header */
.top { border-bottom: 1px solid var(--line); background: var(--paper); }
.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-logo { height: 50px; width: auto; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-cn { font: 600 24px/1.1 var(--serif); letter-spacing: .08em; }
.brand-en { font: 400 10px/1.1 var(--sans); letter-spacing: .2em; color: var(--muted); margin-top: 2px; }

.nav { display: flex; align-items: center; gap: 18px; font-size: 14px; flex-wrap: wrap; }
.nav a { color: var(--muted); }
.nav a:hover, .nav a.on { color: var(--ink); }
.nav a.on { border-bottom: 1px solid var(--accent); padding-bottom: 2px; }
.nav .who { color: var(--ink); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.nav .src {
  font: 400 10px/1 var(--sans);
  letter-spacing: .06em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 2px 4px;
  margin-left: 4px;
  font-style: normal;
}
.nav .quiet { color: var(--muted); font-size: 13px; }

/* page head */
.page-head { padding: 38px 0 8px; }
.page-head h1 { margin: 0 0 6px; font: 600 30px/1.3 var(--serif); letter-spacing: .04em; }
.page-head .sub { margin: 0; color: var(--muted); font-size: 14px; }

.notice {
  margin: 16px 0 0;
  padding: 10px 14px;
  border-left: 3px solid var(--accent);
  background: var(--paper-2);
  font-size: 14px;
}
.notice.error { border-left-color: var(--coral); }

/* search */
.search { display: flex; gap: 8px; margin: 22px 0 4px; }
.search input {
  flex: 1;
  padding: 9px 12px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: #fff;
  font: 14px var(--sans);
  outline: none;
}
.search input:focus { border-color: var(--accent); }
.search button {
  padding: 9px 16px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  border-radius: 2px;
  font: 13px var(--sans);
  cursor: pointer;
}
.search button:hover { background: #3a2c35; }

/* tabs */
.tabs { display: flex; gap: 18px; margin: 18px 0 4px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tabs a { padding: 8px 0; font-size: 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--ink); }
.tabs a.on { color: var(--ink); border-bottom-color: var(--accent); }

/* threads */
.threads { margin-top: 8px; }
.thread-row { display: flex; gap: 16px; padding: 18px 4px; border-bottom: 1px solid var(--line); color: var(--ink); }
.thread-row:hover { background: var(--paper-2); color: var(--ink); }
.tag {
  flex: none;
  align-self: flex-start;
  margin-top: 2px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--accent);
  border: 1px solid var(--line-2);
  padding: 1px 6px;
  border-radius: 2px;
  white-space: nowrap;
}
.thread-main { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.thread-title { font: 600 19px/1.45 var(--serif); letter-spacing: .02em; }
.thread-meta { font-size: 12.5px; color: var(--muted); }

.empty { padding: 20px 0; color: var(--muted); font-size: 14.5px; border-bottom: 1px solid var(--line); }

.pager { display: flex; gap: 8px; padding: 22px 0 8px; font-size: 13px; }
.pager a { min-width: 30px; text-align: center; padding: 3px 8px; border: 1px solid var(--line); color: var(--muted); }
.pager a.on { border-color: var(--accent); color: var(--accent); }

/* thread detail */
.crumb { display: flex; align-items: center; gap: 8px; padding: 24px 0 0; font-size: 13px; color: var(--muted); }
.post { padding: 14px 0 6px; border-bottom: 1px solid var(--line); }
.post h1 { margin: 0 0 8px; font: 600 27px/1.4 var(--serif); letter-spacing: .02em; }
.post-meta { font-size: 12.5px; color: var(--muted); }
.post-body { padding: 14px 0 20px; font-size: 16.5px; line-height: 1.85; word-break: break-word; white-space: pre-wrap; }

.replies { padding: 20px 0 0; }
.replies h2, .reply-form h2, .block-h { font: 600 16px/1.45 var(--serif); letter-spacing: .08em; margin: 0 0 4px; }
.replies .count { color: var(--muted); font-weight: 400; }
.reply { padding: 18px 0; border-bottom: 1px solid var(--line); }
.reply-meta { font-size: 12.5px; color: var(--muted); margin-bottom: 6px; }
.reply-body { font-size: 15.5px; line-height: 1.8; word-break: break-word; white-space: pre-wrap; }

/* resources */
.res-list { margin-top: 8px; }
.res-row { display: flex; gap: 16px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.res-main { min-width: 0; }
.res-title { font: 600 18px/1.5 var(--serif); }
.res-title:hover { color: var(--accent); }
.res-meta { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.res-note { font-size: 14px; color: #4e424a; margin-top: 6px; white-space: pre-wrap; }
.res-upload { padding: 26px 0 6px; }
.btn {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 2px;
  font-size: 14px;
}
.btn:hover { background: #b92f72; border-color: #b92f72; color: #fff; }

/* forms */
.editor, .reply-form { padding-top: 18px; }
.editor.narrow { max-width: 480px; }
label { display: block; margin-bottom: 18px; font-size: 13px; color: var(--muted); }
label input, label select, label textarea, .reply-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  font: 15px/1.6 var(--sans);
  outline: none;
}
label input:focus, label select:focus, label textarea:focus, .reply-form textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }

.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 4px; }
.hint, .hint-line { font-size: 12.5px; color: var(--muted); }
.hint-line { display: block; margin-top: 18px; line-height: 1.7; }
button {
  padding: 9px 20px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font: 14px/1.4 var(--sans);
  letter-spacing: .04em;
  cursor: pointer;
}
button:hover { background: #3a2c35; }

/* admin */
.stats { display: flex; gap: 24px; padding: 18px 0; font-size: 13.5px; color: var(--muted); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tbl { width: 100%; border-collapse: collapse; margin: 8px 0 26px; font-size: 13.5px; }
.tbl th, .tbl td { text-align: left; padding: 9px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tbl th { color: var(--muted); font-weight: 400; }
.tbl .bad { color: var(--coral); }
.inline { display: inline; }
.mini { padding: 4px 10px; font-size: 12px; background: #fff; color: var(--ink); border: 1px solid var(--line-2); }
.mini:hover { background: var(--paper-2); }

/* footer */
.foot { border-top: 1px solid var(--line); margin-top: 50px; }
.foot .wrap { display: flex; justify-content: space-between; gap: 16px; padding: 20px 0 32px; font-size: 12.5px; color: var(--muted); flex-wrap: wrap; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .top-inner { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px 0 10px; }
  .brand-logo { height: 40px; }
  .brand-cn { font-size: 21px; }
  .nav { gap: 14px; font-size: 13px; }
  .page-head { padding-top: 26px; }
  .page-head h1 { font-size: 24px; }
  .thread-row { padding: 15px 2px; gap: 12px; }
  .thread-title { font-size: 17px; }
  .post h1 { font-size: 22px; }
  .form-foot { flex-direction: column; align-items: stretch; }
  button { width: 100%; }
  .res-row { gap: 12px; }
}