/* 第1套·根域名：对开报纸社论 */
:root {
  --desk: #c9b27a;
  --paper: #f3e6c4;
  --paper-edge: #e6d4a8;
  --ink: #1f140e;
  --crimson: #8b1a2b;
  --rule: #8b1a2b;
  --muted: #5a4033;
  --wash: #efe0b6;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  background: var(--desk);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--desk);
  font-family: "Songti SC", "STSong", "SimSun", "宋体", Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.82;
}

img,
svg {
  max-width: 100%;
  vertical-align: middle;
}

a {
  color: var(--crimson);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

p {
  margin: 0 0 0.95em;
  text-align: justify;
}

p + p {
  text-indent: 2em;
}

h1,
h2,
h3 {
  font-family: "Songti SC", "STSong", "SimSun", Georgia, serif;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3.6vw, 38px);
  letter-spacing: 0.04em;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.4vw, 26px);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--crimson);
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--crimson);
}

ul,
ol {
  margin: 0 0 1em 1.4em;
  padding: 0;
}

/* —— 报张 —— */
.desk {
  padding: 18px 12px 36px;
}

.broadsheet {
  width: min(1160px, 100%);
  margin: 0 auto;
  background-color: var(--paper);
  background-image:
    linear-gradient(180deg, rgba(139, 26, 43, 0.04), transparent 90px),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 33px,
      #ead7ad 34px
    );
  border: 1px solid var(--crimson);
  box-shadow: 0 10px 0 rgba(31, 20, 14, 0.08);
}

.sheet {
  padding: 8px 28px 32px;
}

/* —— 报头刊名 + 日期栏 —— */
.masthead {
  padding: 0 28px;
}

.folio {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--crimson);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 0 10px;
}

.brand-mark {
  flex: 0 0 auto;
}

.brand-name {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1;
  color: var(--ink);
}

.mast-rule {
  height: 7px;
  border-top: 1px solid var(--crimson);
  border-bottom: 1px solid var(--crimson);
}

.folio-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--crimson);
}

.folio-nav a {
  display: block;
  padding: 10px 26px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.18em;
  font-size: 15px;
  transition: color 0.18s ease, background-color 0.18s ease;
}

.folio-nav a:hover,
.folio-nav a[aria-current="page"],
.folio-nav a.is-current {
  background: var(--crimson);
  color: var(--paper);
}

/* —— 通栏 / 对开 —— */
.block {
  padding: 22px 0 8px;
  border-bottom: 1px solid var(--crimson);
}

.block:last-child {
  border-bottom: 0;
}

.kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--crimson);
  text-indent: 0;
}

.dateline {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-indent: 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 0 28px;
  padding: 20px 0 8px;
  border-bottom: 1px solid var(--crimson);
}

.hero-side {
  border-left: 1px solid var(--crimson);
  padding-left: 24px;
}

.hero-side p,
.hero-side li {
  text-indent: 0;
}

.hero-side ol {
  margin-left: 1.2em;
}

.drop::first-letter {
  float: left;
  font-size: 3.4em;
  line-height: 0.8;
  padding: 4px 8px 0 0;
  color: var(--crimson);
}

.split-open {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 28px;
}

.split-open > * + * {
  border-left: 1px solid var(--crimson);
  padding-left: 24px;
}

.cols-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
}

.cols-3 > * {
  padding: 0 16px 8px 0;
  border-right: 1px solid var(--crimson);
}

.cols-3 > *:last-child {
  border-right: 0;
  padding-right: 0;
  padding-left: 16px;
}

.cols-3 > *:not(:first-child):not(:last-child) {
  padding-left: 16px;
}

.cols-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.cols-4 > * {
  padding: 0 14px 4px 0;
  border-right: 1px solid var(--crimson);
}

.cols-4 > *:last-child {
  border-right: 0;
  padding-right: 0;
}

.cols-4 > *:not(:first-child) {
  padding-left: 14px;
}

.essay-cols {
  column-count: 2;
  column-gap: 28px;
  column-rule: 1px solid var(--crimson);
}

.essay-cols h3,
.essay-cols p:first-child {
  break-inside: avoid;
}

/* —— 读者来信 —— */
.letters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 24px;
}

.letter {
  padding: 10px 0 16px;
  border-bottom: 1px solid var(--crimson);
}

.letter-meta {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-indent: 0;
}

.letter p {
  text-indent: 2em;
}

.letter p:first-of-type {
  text-indent: 0;
}

/* —— 对照栏 —— */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
}

.compare article {
  padding: 4px 16px 8px 0;
  border-right: 1px solid var(--crimson);
}

.compare article:last-child {
  border-right: 0;
  padding-right: 0;
}

.compare article:not(:first-child) {
  padding-left: 16px;
}

/* —— 步骤 —— */
.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 28px;
}

.step {
  padding: 8px 0 14px;
  border-bottom: 1px solid var(--crimson);
}

.step p {
  text-indent: 0;
}

/* —— 按钮 —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 16px;
  border: 1px solid var(--crimson);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  letter-spacing: 0.08em;
  font-family: inherit;
  font-size: 15px;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.btn:hover {
  background: var(--crimson);
  color: var(--paper);
}

.btn-row {
  display: grid;
  gap: 8px;
  margin: 10px 0 12px;
}

.btn-row p {
  text-indent: 0;
  margin: 0;
}

.note {
  padding: 10px 12px;
  border: 1px solid var(--crimson);
  background: var(--wash);
}

.note p,
.cta-band p {
  text-indent: 0;
}

.cta-band {
  margin: 18px 0 8px;
  padding: 14px 0;
  border-top: 1px solid var(--crimson);
  border-bottom: 1px solid var(--crimson);
}

.faq + .faq {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--crimson);
}

.faq p {
  text-indent: 2em;
}

.colophon {
  padding: 16px 28px 22px;
  border-top: 1px solid var(--crimson);
  font-size: 13px;
}

.colophon p {
  text-indent: 0;
  margin: 0 0 6px;
}

@media (max-width: 920px) {
  .hero,
  .split-open,
  .cols-3,
  .cols-4,
  .letters,
  .compare,
  .steps {
    grid-template-columns: 1fr;
  }

  .essay-cols {
    column-count: 1;
  }

  .hero-side,
  .split-open > * + *,
  .cols-3 > *,
  .cols-4 > *,
  .compare article {
    border-left: 0;
    border-right: 0;
    padding-left: 0;
    padding-right: 0;
    padding-top: 10px;
    border-top: 1px solid var(--crimson);
  }

  .sheet,
  .masthead,
  .colophon {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 640px) {
  .folio {
    flex-direction: column;
    gap: 4px;
  }

  .folio-nav a {
    padding: 8px 14px;
  }
}