/* roulang page: index */
:root {
  --persimmon: #C2410C;
  --persimmon-dark: #9A3412;
  --celadon: #0F6E6B;
  --celadon-dark: #0C5552;
  --celadon-soft: #9ED9D6;
  --gold: #E3B341;
  --ink: #1F1A17;
  --muted: #5E564F;
  --sand: #F3EEE6;
  --mist: #E7E0D4;
  --paper: #FFFCF7;
  --dark: #241C18;
  --line: #E4D9CC;
  --shadow: 0 8px 24px rgba(36, 28, 24, .08);
  --shadow-hover: 0 12px 28px rgba(36, 28, 24, .12);
  --radius: 14px;
  --nav-offset: 148px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; object-fit: cover; }
button, input { font-family: inherit; }
a { color: var(--celadon); text-decoration: none; transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease; }
a:visited { color: var(--celadon); }
a:hover { color: var(--celadon-dark); }
p { margin: 0 0 .9em; }
h1, h2, h3 { margin: 0 0 .45em; color: var(--ink); font-weight: 700; letter-spacing: 0; }
h1 { font-size: 32px; line-height: 1.25; }
h2 { font-size: 24px; line-height: 1.35; }
h3 { font-size: 18px; line-height: 1.45; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--gold); color: var(--ink); }
.grid-container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 0; }
.block { padding: 72px 0; scroll-margin-top: var(--nav-offset); }
.bg-sand { background: var(--sand); }
.bg-mist { background: var(--mist); }
.bg-paper { background: var(--paper); }
.bg-ink { background: var(--dark); color: var(--sand); }
.bg-ink h2, .bg-ink h3, .bg-ink p { color: var(--sand); }
.section-lead { max-width: 46rem; color: var(--muted); margin-bottom: 28px; }
.bg-ink .section-lead { color: #E4D9CC; }
.show-for-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 252, 247, .96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(36, 28, 24, .04);
  backdrop-filter: blur(8px);
}
.site-header .top-bar {
  background: transparent;
  border: 0;
  padding: 12px 0 8px;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  float: none;
}
.site-header .top-bar::before, .site-header .top-bar::after { display: none; }
.brand { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-width: 0; flex: 1 1 auto; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  background: var(--persimmon);
  color: #fff;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
  line-height: 1.4;
}
.brand-name { font-size: 16px; font-weight: 700; line-height: 1.25; }
.nav-search { flex: 1 1 320px; display: flex; align-items: center; gap: 8px; margin: 0; position: relative; }
.nav-search input[type="search"] {
  margin: 0;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  box-shadow: none;
  padding: 0 16px;
}
.search-submit, .btn, .pill {
  border: 0;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.search-submit {
  height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--celadon);
  color: #fff;
  white-space: nowrap;
}
.search-submit:hover { background: var(--celadon-dark); color: #fff; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-main { background: var(--persimmon); color: #fff; flex: 0 0 auto; }
.btn-main:visited, .btn-main:hover { color: #fff; }
.btn-main:hover { background: var(--persimmon-dark); }
.btn-ghost { background: transparent; color: var(--persimmon); border: 1px solid var(--persimmon); }
.btn-ghost:visited { color: var(--persimmon); }
.btn-ghost:hover { background: var(--persimmon); color: #fff; }
.btn-line { background: transparent; color: var(--celadon); border: 1px solid var(--celadon); }
.btn-line:visited { color: var(--celadon); }
.btn-line:hover { background: var(--celadon); color: #fff; }
.btn:focus-visible, .search-submit:focus-visible, .pill:focus-visible, input:focus-visible, .check input:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--celadon);
}
.channel-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 12px;
  scrollbar-width: none;
}
.channel-row::-webkit-scrollbar { display: none; height: 0; }
.pill {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 14px;
}
.pill:visited { color: var(--ink); }
.pill:hover { border-color: var(--celadon); color: var(--celadon); }
.pill.is-active, .pill.is-active:visited { background: var(--persimmon); border-color: var(--persimmon); color: #fff; }
.hero-copy h1 { margin-bottom: 12px; }
.hero-lead { font-size: 18px; line-height: 1.6; color: var(--ink); margin-bottom: .7em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.screen {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.screen-top, .screen-row, .screen-sub { display: flex; align-items: center; }
.screen-top {
  gap: 8px;
  padding: 12px;
  background: var(--mist);
  border-bottom: 1px solid var(--line);
}
.screen-top span, .badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 10px;
  background: var(--gold);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.6;
  font-style: normal;
}
.badge-teal { background: var(--celadon); color: #fff; }
.badge-ink { background: var(--dark); color: var(--sand); }
.screen-list { padding: 8px 0; }
.screen-row {
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.screen-row b { font-weight: 700; }
.screen-row em { color: var(--celadon-dark); font-style: normal; }
.screen-sub {
  min-height: 46px;
  padding: 10px 14px;
  background: var(--persimmon);
  color: #fff;
  font-size: 14px;
}
.card, .feat, .scene, .series-card, .case, .plan, .quote, .device, .entry-card, .step {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card:hover, .feat:hover, .series-card:hover, .quote:hover, .entry-card:hover, .case:hover, .device:hover {
  border-color: var(--celadon);
  box-shadow: var(--shadow-hover);
}
.feat, .quote, .plan, .device, .entry-card, .series-card, .case { padding: 20px; height: 100%; }
.idx { display: block; color: var(--persimmon); font-size: 28px; line-height: 1; margin-bottom: 10px; font-weight: 700; }
.feat p, .quote p, .device p, .series-card p, .entry-card p, .case p { color: var(--muted); margin: 0; }
.scene { display: flex; gap: 18px; align-items: center; padding: 16px 18px; margin-bottom: 12px; }
.scene b { min-width: 6em; font-size: 18px; }
.scene span { color: var(--muted); }
.demo-steps { display: flex; flex-direction: column; gap: 12px; }
.step { display: flex; gap: 12px; padding: 16px; }
.step i {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--persimmon);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-style: normal;
  font-weight: 700;
}
.step p { margin: 0; color: var(--muted); }
.pill-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.media-ph {
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  background: #E7E0D4 center/cover no-repeat;
  display: flex;
  align-items: flex-end;
  padding: 12px;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 12px;
}
.series-side { display: flex; flex-direction: column; gap: 12px; }
.series-side .series-card { display: block; color: var(--ink); }
.series-side .series-card:visited { color: var(--ink); }
.meta-line { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.case { display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.case-num { font-size: 28px; line-height: 1.2; color: var(--persimmon); font-weight: 700; }
.case-num small { display: block; color: var(--muted); font-size: 14px; font-weight: 400; }
.plan.is-hot { border: 2px solid var(--persimmon); }
.plan ul { margin: 12px 0 18px; }
.plan li { position: relative; padding-left: 16px; margin: 6px 0; color: var(--muted); }
.plan li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--celadon); position: absolute; left: 0; top: .65em; }
.price { font-size: 32px; line-height: 1.1; margin: 8px 0; }
.price span { font-size: 15px; color: var(--muted); }
.quote q { display: block; font-size: 16px; line-height: 1.75; margin-bottom: 12px; }
.quote cite { color: var(--celadon-dark); font-style: normal; font-weight: 700; }
.point { padding: 12px 0; border-bottom: 1px solid var(--line); }
.point strong { display: block; }
.bar-box { padding: 8px 0 0; }
.bar-row { display: grid; grid-template-columns: 92px 1fr 48px; gap: 10px; align-items: center; margin: 12px 0; color: var(--ink); }
.bar { height: 10px; background: var(--mist); border-radius: 999px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--persimmon); }
.bar i.after { background: var(--celadon); width: 9%; }
.bar i.before { width: 41%; }
.version-list li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.device-frame {
  aspect-ratio: 16 / 10;
  background: var(--dark);
  border-radius: 10px;
  display: flex;
  align-items: flex-end;
  padding: 10px;
  margin-bottom: 12px;
}
.device-frame span {
  display: block;
  width: 100%;
  background: var(--persimmon);
  color: #fff;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.5;
}
.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 4px 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.news-item:visited { color: var(--ink); }
.news-date { color: var(--celadon-dark); font-weight: 700; }
.news-title { font-weight: 700; font-size: 18px; }
.news-desc { grid-column: 2; color: var(--muted); }
.news-item:hover { background: rgba(15, 110, 107, .06); }
.news-item:hover .news-title { color: var(--celadon); }
.more-wrap { margin-top: 18px; }
.open-form { display: grid; gap: 12px; max-width: 560px; }
.open-form input[type="email"] {
  margin: 0;
  height: 48px;
  border-radius: 999px;
  border: 1px solid #6D625A;
  background: #2E2622;
  color: #fff;
  padding: 0 16px;
  box-shadow: none;
}
.open-form input.is-invalid, .check.is-invalid { border-color: var(--gold); }
.check { display: flex; gap: 8px; align-items: flex-start; color: #E4D9CC; }
.check input { margin-top: 6px; accent-color: var(--persimmon); }
.form-error { color: var(--gold); margin: 0; }
.form-ok { color: var(--celadon-soft); margin: 0; }
.site-footer { background: var(--dark); color: #E4D9CC; padding: 36px 0 28px; }
.footer-brand { color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.site-footer a { color: var(--celadon-soft); }
.site-footer a:visited { color: var(--celadon-soft); }
.site-footer a:hover { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 16px; margin: 14px 0; }
.copy { color: #B7ADA4; font-size: 14px; margin: 0; }
input.is-invalid { border-color: var(--persimmon) !important; }
@media (min-width: 1024px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  h3 { font-size: 20px; }
}
@media (max-width: 1023px) {
  .case { align-items: flex-start; }
}
@media (max-width: 639px) {
  body { font-size: 16px; }
  .block { padding: 40px 0; }
  .site-header .top-bar { gap: 8px; }
  .brand-name { font-size: 13px; }
  .nav-search { flex: 0 0 auto; }
  .nav-search input[type="search"] {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: min(74vw, 320px);
    z-index: 6;
  }
  .nav-search.is-open input[type="search"] { display: block; }
  .btn { padding: 0 12px; font-size: 13px; min-height: 40px; }
  .scene { flex-direction: column; align-items: flex-start; gap: 4px; }
  .case { flex-direction: column; }
  .bar-row { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .grid-container { width: calc(100% - 24px); }
  .news-item { grid-template-columns: 1fr; }
  .news-desc { grid-column: 1; }
  .hero-actions .btn { width: 100%; }
  .brand-mark { font-size: 11px; }
}

/* roulang page: category1 */
:root {
 --persimmon: #C2410C;
 --persimmon-dark: #9A3412;
 --celadon: #0F6E6B;
 --celadon-dark: #0C5552;
 --celadon-soft: #9ED9D6;
 --gold: #E3B341;
 --ink: #1F1A17;
 --muted: #5E564F;
 --sand: #F3EEE6;
 --mist: #E7E0D4;
 --paper: #FFFCF7;
 --dark: #241C18;
 --line: #E4D9CC;
 --shadow: 0 8px 24px rgba(36, 28, 24, .08);
 --shadow-hover: 0 12px 28px rgba(36, 28, 24, .12);
 --radius: 14px;
 --nav-offset: 148px;
 --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--sand);
 color: var(--ink);
 font-family: var(--font);
 font-size: 16.5px;
 line-height: 1.75;
 text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; object-fit: cover; }
button, input { font-family: inherit; }
p { margin: 0 0 .9em; }
h1, h2, h3 { color: var(--ink); font-weight: 700; letter-spacing: 0; }
h1 { font-size: 36px; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 26px; line-height: 1.3; margin: 0 0 18px; }
h3 { font-size: 18px; line-height: 1.4; margin: 0 0 8px; }
a { color: var(--celadon); text-decoration: none; transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease; }
a:visited { color: var(--celadon); }
a:hover { color: var(--celadon-dark); }
.grid-container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 0; }
.section-lead { max-width: 46rem; color: var(--muted); margin-bottom: 28px; }
.show-for-sr {
 position: absolute;
 width: 1px;
 height: 1px;
 padding: 0;
 margin: -1px;
 overflow: hidden;
 clip: rect(0, 0, 0, 0);
 border: 0;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255, 252, 247, .96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 1px 0 rgba(36, 28, 24, .04);
 backdrop-filter: blur(8px);
}
.site-header .top-bar {
 background: transparent;
 border: 0;
 padding: 12px 0 8px;
 display: flex;
 align-items: center;
 gap: 16px;
 width: 100%;
 float: none;
 flex-wrap: nowrap;
}
.site-header .top-bar::before, .site-header .top-bar::after { display: none; }
.brand { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-width: 0; flex: 1 1 auto; color: var(--ink); }
.brand:hover, .brand:visited { color: var(--ink); }
.brand-mark {
 display: inline-flex;
 align-items: center;
 background: var(--persimmon);
 color: #fff;
 border-radius: 999px;
 padding: 2px 8px;
 font-size: 12px;
 line-height: 1.4;
}
.brand-name { font-size: 16px; font-weight: 700; line-height: 1.25; white-space: nowrap; }
.nav-search { flex: 1 1 320px; display: flex; align-items: center; gap: 8px; margin: 0; position: relative; max-width: 460px; }
.nav-search input[type="search"] {
 margin: 0;
 height: 42px;
 width: 100%;
 border: 1px solid var(--line);
 border-radius: 999px;
 background: #fff;
 color: var(--ink);
 box-shadow: none;
 padding: 0 16px;
 font-size: 15px;
}
.nav-search input.is-error { border-color: var(--persimmon); background: #fff7f3; }
.search-submit, .btn, .pill, .sort-switch button {
 border: 0;
 cursor: pointer;
 transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.search-submit {
 height: 42px;
 padding: 0 14px;
 border-radius: 999px;
 background: var(--celadon);
 color: #fff;
 white-space: nowrap;
}
.search-submit:hover { background: var(--celadon-dark); color: #fff; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: 999px;
 font-size: 15px;
 line-height: 1;
 white-space: nowrap;
}
.btn:active, .search-submit:active, .pill:active { transform: translateY(1px); }
.btn-main { background: var(--persimmon); color: #fff; flex: 0 0 auto; }
.btn-main:visited, .btn-main:hover { color: #fff; }
.btn-main:hover { background: var(--persimmon-dark); }
.btn-ghost { background: transparent; color: var(--persimmon); border: 1px solid var(--persimmon); }
.btn-ghost:visited { color: var(--persimmon); }
.btn-ghost:hover { background: var(--persimmon); color: #fff; }
.btn-line { background: transparent; color: var(--celadon); border: 1px solid var(--celadon); }
.btn-line:visited { color: var(--celadon); }
.btn-line:hover { background: var(--celadon); color: #fff; }
.btn:focus-visible, .search-submit:focus-visible, .pill:focus-visible, input:focus-visible, button:focus-visible {
 outline: 2px solid var(--celadon);
 outline-offset: 2px;
 box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--celadon);
}
.channel-row {
 display: flex;
 gap: 8px;
 overflow-x: auto;
 padding: 0 0 12px;
 scrollbar-width: none;
}
.channel-row::-webkit-scrollbar { display: none; height: 0; }
.pill {
 display: inline-flex;
 align-items: center;
 flex: 0 0 auto;
 min-height: 36px;
 padding: 0 14px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--ink);
 font-size: 14px;
}
.pill:visited { color: var(--ink); }
.pill:hover { border-color: var(--celadon); color: var(--celadon); }
.pill.is-active, .pill.is-active:visited, .pill.is-active:hover { background: var(--persimmon); border-color: var(--persimmon); color: #fff; }
.badge {
 display: inline-flex;
 align-items: center;
 border-radius: 999px;
 padding: 2px 10px;
 background: var(--gold);
 color: var(--ink);
 font-size: 13px;
 line-height: 1.6;
 font-style: normal;
 font-weight: 700;
}
.badge-teal { background: var(--celadon); color: #fff; }
.badge-ink { background: var(--dark); color: var(--sand); }
.card, .topic-card, .point-card, .series-card, .step, .news-item, .time-node {
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.topic-card:hover, .series-card:hover, .news-item:hover, .point-card:hover {
 border-color: var(--celadon);
 box-shadow: var(--shadow-hover);
}
.media-ph {
 aspect-ratio: 16 / 10;
 border-radius: 10px;
 display: flex;
 align-items: flex-end;
 padding: 12px;
 color: var(--ink);
 font-weight: 700;
 background-color: #E7E0D4;
 background-image: linear-gradient(145deg, rgba(227, 179, 65, .45), rgba(15, 110, 107, .18) 58%, rgba(194, 65, 12, .16));
}
.ph-b { background-image: linear-gradient(160deg, rgba(15, 110, 107, .28), rgba(227, 179, 65, .4)); }
.ph-c { background-image: linear-gradient(180deg, rgba(194, 65, 12, .2), rgba(231, 224, 212, .9)); }
.ph-d { background-image: linear-gradient(135deg, #efe4d4, rgba(15, 110, 107, .25)); }
main { display: block; }
.block { padding: 72px 0; scroll-margin-top: calc(var(--nav-offset) + 12px); }
.block-sand { background: var(--sand); }
.block-mist { background: var(--mist); }
.block-paper { background: var(--paper); }
.cat-head { padding: 36px 0 28px; }
.cat-head h1 { max-width: 18em; }
.head-line { color: var(--ink); margin-bottom: 16px; max-width: 40rem; }
.head-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.result-count { margin: 0; font-weight: 700; }
.result-count span { color: var(--persimmon); }
.sort-switch, .filter-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-block { padding: 0 0 8px; position: relative; z-index: 30; background: var(--sand); }
.filter-bar {
 position: sticky;
 top: 118px;
 background: rgba(255, 252, 247, .97);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 14px 16px 16px;
}
.filter-bar h2 { font-size: 18px; margin-bottom: 10px; }
.filter-label { margin: 10px 0 6px; color: var(--muted); font-size: 14px; }
.catalog-list { margin-top: 8px; }
.topic-card {
 display: flex;
 gap: 16px;
 padding: 16px;
 height: 100%;
 color: var(--ink);
}
.topic-card .media-ph { width: 42%; flex: 0 0 42%; margin: 0; min-height: 120px; }
.topic-body { min-width: 0; flex: 1 1 auto; display: flex; flex-direction: column; }
.topic-body p { color: var(--muted); margin: 0 0 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.badge-row, .meta-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge-row { margin-bottom: 8px; }
.meta-row { margin-top: auto; color: var(--muted); font-size: 14px; }
.more-wrap { margin: 22px 0 0; }
.timeline { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.timeline::before {
 content: "";
 position: absolute;
 left: 18px;
 right: 18px;
 top: 28px;
 height: 2px;
 background: var(--celadon-soft);
}
.time-node { position: relative; padding: 18px 16px 16px; }
.time-node strong { display: block; color: var(--persimmon); font-size: 14px; margin-bottom: 6px; }
.time-node h3 { font-size: 18px; }
.time-node p { margin: 0; color: var(--muted); }
.point-card { padding: 20px; height: 100%; }
.point-card em { display: inline-flex; font-style: normal; font-weight: 700; color: var(--persimmon); margin-bottom: 6px; }
.point-card p { margin: 0; color: var(--muted); }
.point-stack { display: grid; gap: 14px; }
.series-scroller {
 display: flex;
 gap: 14px;
 overflow-x: auto;
 padding-bottom: 8px;
 scroll-snap-type: x mandatory;
 scrollbar-width: thin;
}
.series-card {
 display: block;
 min-width: 260px;
 max-width: 280px;
 scroll-snap-align: start;
 padding: 14px;
 color: var(--ink);
}
.series-card:visited { color: var(--ink); }
.series-card .media-ph { margin-bottom: 12px; }
.series-card p { margin: 0; color: var(--muted); }
.step-list { display: grid; gap: 12px; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 12px; padding: 16px 18px; align-items: center; }
.step b {
 width: 44px;
 height: 44px;
 border-radius: 999px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 background: var(--persimmon);
 color: #fff;
}
.step p { margin: 0; color: var(--muted); }
.news-list { display: grid; gap: 12px; }
.news-item {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 padding: 16px 18px;
 color: var(--ink);
}
.news-item:visited { color: var(--ink); }
.news-item time { color: var(--persimmon); font-weight: 700; font-size: 14px; }
.news-item p { margin: 0; color: var(--muted); }
.news-item span { color: var(--celadon); font-weight: 700; white-space: nowrap; }
.site-footer {
 background: var(--dark);
 color: #E4D9CC;
 padding: 48px 0 36px;
}
.site-footer a { color: var(--celadon-soft); }
.site-footer a:visited { color: var(--celadon-soft); }
.site-footer a:hover { color: #fff; }
.footer-brand { margin: 0 0 8px; font-size: 20px; font-weight: 700; color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 18px; margin: 16px 0; }
.copy { margin: 0; color: #C8B8A8; font-size: 14px; }
@media (max-width: 1023px) {
 h1 { font-size: 32px; }
 .timeline { grid-template-columns: 1fr 1fr; }
 .timeline::before { display: none; }
 .topic-card .media-ph { width: 38%; flex-basis: 38%; }
}
@media (max-width: 639px) {
 body { font-size: 16px; }
 h1 { font-size: 28px; }
 h2 { font-size: 22px; }
 .grid-container { width: min(1120px, calc(100% - 20px)); }
 .block { padding: 40px 0; }
 .cat-head { padding: 24px 0 16px; }
 .site-header .top-bar { gap: 8px; padding-top: 10px; }
 .brand-name { font-size: 13px; }
 .nav-search { flex: 0 0 auto; max-width: none; }
 .nav-search input[type="search"] { width: 0; min-width: 0; padding: 0; border: 0; opacity: 0; position: absolute; }
 .nav-search input.is-error { width: 120px; opacity: 1; position: static; padding: 0 10px; border: 1px solid var(--persimmon); }
 .search-submit { width: 42px; padding: 0; font-size: 0; }
 .search-submit::before { content: "搜"; font-size: 14px; color: #fff; }
 .btn-main { min-height: 40px; padding: 0 10px; font-size: 13px; }
 .filter-bar { top: 108px; }
 .topic-card, .news-item, .step { grid-template-columns: 1fr; display: flex; flex-direction: column; align-items: stretch; }
 .topic-card .media-ph { width: 100%; flex-basis: auto; }
 .timeline { grid-template-columns: 1fr; }
 .news-item span { white-space: normal; }
}
@media (min-width: 640px) and (max-width: 1023px) {
 .point-stack { grid-template-columns: 1fr 1fr; }
}