/* roulang page: index */
:root {
  --bg: #f3f6fb;
  --bg-white: #ffffff;
  --ink: #1c2838;
  --muted: #5c6b80;
  --line: #d5deea;
  --primary: #3a5678;
  --primary-deep: #243b58;
  --primary-mid: #3e648c;
  --primary-soft: #e7eef6;
  --accent: #1aa6a0;
  --accent-dark: #12857f;
  --accent-soft: #e5f6f5;
  --danger: #9c4a3c;
  --danger-bg: #fff6f4;
  --shadow: 0 10px 28px rgba(36, 59, 88, 0.08);
  --shadow-hover: 0 16px 34px rgba(36, 59, 88, 0.12);
  --radius: 14px;
  --nav-h: 74px;
  --max: 1120px;
  --font: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; display: block; border: 0; }
button, input, textarea { font-family: inherit; font-size: 16px; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--primary); }
p { margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.35; margin: 0 0 12px; font-weight: 700; }
::selection { background: #d7f3f1; color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(90deg, #1e3a56 0%, #31567c 52%, #467196 100%);
  box-shadow: 0 8px 20px rgba(30, 58, 86, 0.18);
}
.nav-bar {
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  color: #fff;
  font-weight: 760;
  font-size: 18px;
  letter-spacing: 0.02em;
  line-height: 1.35;
  max-width: 320px;
}
.logo:hover { color: #fff; opacity: 0.88; }
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.08);
  color: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.nav-panel { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-panel a {
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 15px;
}
.nav-panel a:hover { background: rgba(255,255,255,0.14); color: #fff; }
.nav-panel a.active { background: rgba(255,255,255,0.18); box-shadow: inset 0 -2px 0 #fff; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
  font-weight: 650;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover, .btn-accent:focus-visible { background: var(--accent-dark); color: #fff; }
.nav-panel a.btn-accent { color: #fff; }
.nav-panel a.btn-accent:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { background: #fff; color: var(--primary-deep); border-color: #c5d3e4; }
.btn-ghost:hover, .btn-ghost:focus-visible { background: var(--primary-soft); color: var(--primary-deep); }
.hero { padding: 64px 0 36px; background: linear-gradient(180deg, #f8fbfe 0%, var(--bg) 100%); }
.hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 42px; align-items: center; }
.kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #0f6f6b;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
}
.hero h1 { font-size: 40px; letter-spacing: -0.02em; color: var(--primary-deep); }
.subline { font-size: 18px; color: var(--primary); margin-bottom: 14px; font-weight: 650; }
.hero-text { color: var(--muted); font-size: 16px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.hero-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-card-body { padding: 16px 18px 18px; }
.hero-card-body strong { display: block; font-size: 18px; margin-bottom: 4px; }
.hero-card-body span { color: var(--muted); font-size: 14px; }
.cover { position: relative; background: var(--primary-soft); overflow: hidden; }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.ratio-16x9 { aspect-ratio: 16 / 9; }
.ratio-3x4 { aspect-ratio: 3 / 4; }
.badge {
  position: absolute;
  top: 10px;
  min-height: 26px;
  padding: 0 8px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.badge-time { left: 10px; background: rgba(28, 40, 56, 0.82); color: #fff; }
.badge-up { right: 10px; background: var(--accent); color: #fff; }
.band { padding: 78px 0; background: var(--bg); }
.band-alt { background: var(--bg-white); }
.section-head { margin-bottom: 26px; max-width: 760px; }
.section-head h2 { font-size: 30px; color: var(--primary-deep); }
.lead { color: var(--muted); margin: 0; }
.mag { display: grid; grid-template-columns: 1.35fr 1fr 1fr; grid-template-rows: auto auto; gap: 16px; }
.mag-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  color: inherit;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform .2s ease, box-shadow .2s ease;
}
.mag-lead { grid-row: 1 / span 2; }
.mag-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); color: inherit; }
.mag-body { padding: 16px 16px 18px; }
.mag-body h3 { font-size: 20px; }
.mag-body p { color: var(--muted); font-size: 14px; margin: 0; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
}
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat {
  background: #f9fbfd;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 16px;
  box-shadow: none;
}
.stat b { display: block; font-size: 32px; color: var(--primary-deep); letter-spacing: -0.03em; }
.stat span { color: var(--muted); font-size: 14px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 16px 18px;
  box-shadow: var(--shadow);
}
.step-no {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: #fff;
  font-weight: 760;
  margin-bottom: 12px;
}
.step h3 { font-size: 18px; }
.step p { color: var(--muted); font-size: 14px; margin: 0; }
.scene-row { display: grid; grid-template-columns: 1.45fr 1fr 0.72fr; gap: 14px; }
.scene {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 180px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
.scene:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); color: inherit; }
.scene-a { background: linear-gradient(180deg, #f7fbff 0%, #fff 58%); min-height: 230px; }
.scene-b { background: linear-gradient(180deg, #f3fbfa 0%, #fff 60%); }
.scene-c { background: #fff; }
.scene h3 { font-size: 22px; }
.scene p { color: var(--muted); font-size: 14px; margin: 0; }
.case-wall { display: grid; grid-template-columns: 1.15fr 1fr 0.78fr; grid-template-areas: "wide wide tall" "a b tall2"; gap: 16px; }
.case { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); color: inherit; transition: transform .2s ease, box-shadow .2s ease; }
.case:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); color: inherit; }
.case-wide { grid-area: wide; }
.case-tall { grid-area: tall; }
.case-tall2 { grid-area: tall2; }
.case-a { grid-area: a; }
.case-b { grid-area: b; }
.case-body { padding: 12px 14px 14px; }
.case-body h3 { font-size: 16px; margin-bottom: 4px; }
.meta-line { color: var(--muted); font-size: 13px; }
.pick { display: grid; grid-template-columns: 1.45fr 0.9fr; gap: 16px; align-items: stretch; }
.pick-main, .pick-mini {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  color: inherit;
}
.pick-main:hover, .pick-mini:hover { color: inherit; box-shadow: var(--shadow-hover); }
.pick-side { display: flex; flex-direction: column; gap: 12px; }
.pick-copy { padding: 16px 18px 18px; }
.pick-copy h3 { font-size: 22px; }
.pick-copy p, .mini-copy p { color: var(--muted); margin: 0; font-size: 14px; }
.pick-mini { display: grid; grid-template-columns: 118px 1fr; min-height: 96px; }
.mini-copy { padding: 12px 12px 12px 0; }
.mini-copy h3 { font-size: 16px; margin-bottom: 4px; }
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.news-item:hover { background: #f7fafc; }
.news-date { color: var(--primary); font-weight: 760; font-variant-numeric: tabular-nums; }
.news-item a { font-weight: 680; }
.news-item a:hover { text-decoration: underline; text-underline-offset: 3px; }
.news-more-wrap { margin-top: 18px; }
.guide-list { display: flex; flex-direction: column; gap: 14px; }
.guide {
  display: grid;
  grid-template-columns: 1fr 168px;
  gap: 18px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.guide h3 { font-size: 18px; }
.guide h3 a:hover { text-decoration: underline; text-underline-offset: 3px; color: var(--primary); }
.guide p { color: var(--muted); font-size: 14px; margin: 0; }
.guide-thumb { border-radius: 10px; overflow: hidden; }
.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.day {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 148px;
  padding: 12px;
}
.day-name { color: var(--primary); font-weight: 760; margin-bottom: 8px; }
.day p { color: var(--muted); font-size: 14px; margin: 0; }
.partner-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  align-items: center;
  padding: 8px 2px 0;
}
.partner {
  color: #8ea0b5;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 15px;
  padding: 8px 2px;
}
.quote-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.quote {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
}
.quote p { font-size: 16px; margin-bottom: 10px; }
.quote footer { color: var(--muted); font-size: 13px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: transparent; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 4px;
  font-weight: 730;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--primary); }
.faq-item p { color: var(--muted); padding: 0 4px 16px; margin: 0; }
.assure {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.assure-item { display: flex; gap: 10px; align-items: center; min-height: 48px; padding: 6px 8px; }
.assure-item svg { width: 22px; height: 22px; flex: 0 0 auto; stroke: var(--accent); fill: none; stroke-width: 1.8; }
.assure-item span { font-weight: 700; }
.contact-grid { display: grid; grid-template-columns: 0.86fr 1.14fr; gap: 28px; align-items: start; }
.contact-list { list-style: none; margin: 18px 0 0; padding: 0; }
.contact-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.contact-list b { display: inline-block; min-width: 5em; color: var(--primary-deep); }
.consult-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.field { margin-bottom: 12px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 14px; }
.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--ink);
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field textarea:focus { border-color: var(--primary); outline: 2px solid rgba(26,166,160,.35); outline-offset: 1px; }
.field input.is-error, .field textarea.is-error { border-color: var(--danger); background: var(--danger-bg); }
.field-error { color: var(--danger); font-size: 13px; margin-top: 4px; }
.form-note { color: var(--muted); font-size: 13px; margin: 8px 0 12px; }
.form-success { background: var(--accent-soft); color: #0f6f6b; border-radius: 12px; padding: 10px 12px; margin-bottom: 12px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 42px 0 24px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 1fr; gap: 28px; }
.foot-brand strong { display: block; color: var(--primary-deep); font-size: 18px; margin-bottom: 8px; }
.foot-brand p, .foot-contact p { color: var(--muted); margin: 0; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.foot-links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.copyright { margin-top: 26px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
[hidden] { display: none !important; }
@media (max-width: 1024px) {
  .hero h1 { font-size: 34px; }
  .mag { grid-template-columns: 1fr 1fr; }
  .mag-lead { grid-row: auto; grid-column: 1 / -1; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .scene-row { grid-template-columns: 1.2fr 0.8fr; }
  .scene-c { grid-column: 1 / -1; }
  .case-wall { grid-template-columns: 1fr 1fr; grid-template-areas: "wide tall" "a b" "tall2 tall2"; }
  .week { grid-template-columns: repeat(4, 1fr); }
  .pick, .contact-grid, .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .nav-toggle { display: inline-flex; }
  .nav-panel {
    display: none;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    margin: 0;
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
    background: linear-gradient(180deg, #1e3a56 0%, #3a6288 100%);
    overflow: auto;
  }
  .nav-panel.is-open { display: flex; }
  .nav-panel a { min-height: 52px; font-size: 18px; display: flex; align-items: center; }
  .hero { padding: 36px 0 12px; }
  .hero-grid, .scene-row, .pick, .contact-grid, .quote-grid, .assure, .guide, .foot-grid { grid-template-columns: 1fr; }
  .scene-c, .foot-brand { grid-column: auto; }
  .steps { display: block; margin-left: 12px; border-left: 2px solid #c9d6e6; }
  .step { position: relative; margin: 0 0 14px 18px; }
  .step-no { position: absolute; left: -38px; top: 18px; }
  .guide { grid-template-columns: 1fr; }
  .case-wall { grid-template-columns: 1fr; grid-template-areas: none; }
  .case-wide, .case-tall, .case-tall2, .case-a, .case-b { grid-area: auto; }
  .week { grid-template-columns: 1fr 1fr; }
  .band { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 32px); }
  .hero h1 { font-size: 28px; }
  .stat-grid, .week, .news-item, .pick-mini { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .logo { font-size: 16px; max-width: 210px; }
  .pick-mini .cover { aspect-ratio: 16/9; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category1 */
:root {
 --bg: #f3f6fb;
 --bg-white: #ffffff;
 --ink: #1c2838;
 --muted: #5c6b80;
 --line: #d5deea;
 --primary: #3a5678;
 --primary-deep: #243b58;
 --primary-mid: #3e648c;
 --primary-soft: #e7eef6;
 --accent: #1aa6a0;
 --accent-dark: #12857f;
 --accent-soft: #e5f6f5;
 --danger: #9c4a3c;
 --danger-bg: #fff6f4;
 --shadow: 0 10px 28px rgba(36, 59, 88, 0.08);
 --shadow-hover: 0 16px 34px rgba(36, 59, 88, 0.12);
 --radius: 14px;
 --nav-h: 74px;
 --max: 1120px;
 --font: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
/* roulang page: category1 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--bg);
 line-height: 1.75;
 font-size: 16px;
}
img { max-width: 100%; display: block; border: 0; }
button, input, textarea { font-family: inherit; font-size: 16px; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--primary); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: linear-gradient(90deg, #1e3a56 0%, #31567c 52%, #467196 100%);
 box-shadow: 0 8px 20px rgba(30, 58, 86, 0.18);
}
.nav-bar {
 min-height: var(--nav-h);
 display: flex;
 align-items: center;
 gap: 16px;
}
.logo {
 color: #fff;
 font-weight: 760;
 font-size: 18px;
 letter-spacing: 0.02em;
 line-height: 1.35;
 max-width: 320px;
}
.logo:hover { color: #fff; opacity: 0.88; }
.nav-toggle {
 display: none;
 margin-left: auto;
 width: 46px;
 height: 46px;
 border-radius: 12px;
 border: 1px solid rgba(255,255,255,0.35);
 background: rgba(255,255,255,0.08);
 color: #fff;
 align-items: center;
 justify-content: center;
 cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.nav-panel { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-panel a {
 color: #fff;
 padding: 10px 14px;
 border-radius: 10px;
 font-size: 15px;
}
.nav-panel a:hover { background: rgba(255,255,255,0.14); color: #fff; }
.nav-panel a.active { background: rgba(255,255,255,0.18); box-shadow: inset 0 -2px 0 #fff; }
.nav-panel a:focus-visible { outline-color: #fff; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 46px;
 padding: 0 18px;
 border-radius: 12px;
 border: 1px solid transparent;
 cursor: pointer;
 transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
 font-weight: 650;
 text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover, .btn-accent:focus-visible { background: var(--accent-dark); color: #fff; }
.nav-panel a.btn-accent { color: #fff; }
.nav-panel a.btn-accent:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { background: #fff; color: var(--primary-deep); border-color: #c5d3e4; }
.btn-ghost:hover, .btn-ghost:focus-visible { background: var(--primary-soft); color: var(--primary-deep); }
.badge {
 position: absolute;
 top: 10px;
 min-height: 26px;
 padding: 0 8px;
 border-radius: 999px;
 display: inline-flex;
 align-items: center;
 font-size: 12px;
 font-weight: 700;
 letter-spacing: 0.02em;
}
.badge-time { left: 10px; background: rgba(28, 40, 56, 0.82); color: #fff; }
.badge-up { right: 10px; background: var(--accent); color: #fff; }
.badge-stop { right: 10px; background: var(--danger); color: #fff; }
.section-head { margin-bottom: 26px; max-width: 760px; }
.section-head h2, .cat-head h1, .feature-copy h2, .slim-copy strong {
 color: var(--primary-deep);
}
.section-head h2 { font-size: 30px; margin: 0 0 8px; letter-spacing: -0.02em; }
.lead { color: var(--muted); margin: 0; }
.tag {
 display: inline-flex;
 align-items: center;
 min-height: 24px;
 padding: 0 8px;
 border-radius: 999px;
 background: var(--primary-soft);
 color: var(--primary);
 font-size: 12px;
 font-weight: 700;
 margin-bottom: 8px;
}
.meta-line { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.band { padding: 72px 0; background: var(--bg); }
.band-white { background: var(--bg-white); }
.cat-head {
 padding: 42px 0 28px;
 background: linear-gradient(180deg, #f8fbfe 0%, var(--bg) 100%);
}
.kicker {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 10px;
 border-radius: 999px;
 background: var(--accent-soft);
 color: var(--accent-dark);
 font-size: 13px;
 font-weight: 700;
 margin-bottom: 12px;
}
.cat-head h1 {
 margin: 0 0 10px;
 font-size: 38px;
 letter-spacing: -0.02em;
 line-height: 1.25;
}
.scope { margin: 0; max-width: 760px; color: var(--muted); }
.fact-row {
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
 margin-top: 16px;
}
.fact-row span {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 999px;
 padding: 4px 12px;
 color: var(--primary-deep);
 font-size: 13px;
 font-weight: 650;
}
.sort-bar {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 8px;
 margin-top: 18px;
 padding: 10px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.sort-label { color: var(--muted); font-size: 14px; padding: 0 6px; }
.sort-btn {
 min-height: 40px;
 padding: 0 14px;
 border-radius: 10px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--ink);
 cursor: pointer;
 font-weight: 650;
}
.sort-btn:hover { border-color: #b7c8dc; background: var(--primary-soft); }
.sort-btn.is-current { background: var(--primary); color: #fff; border-color: var(--primary); }
.sort-state { margin-left: auto; color: var(--muted); font-size: 13px; padding-right: 6px; }
.stream {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 18px;
 align-items: start;
}
.stream-card {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 overflow: hidden;
 transition: transform .2s ease, box-shadow .2s ease;
}
.stream-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.stream-card:nth-child(3),
.stream-card:nth-child(4) { margin-top: 28px; }
.span-card {
 grid-column: 1 / -1;
 display: grid;
 grid-template-columns: 1.35fr 0.9fr;
 margin-top: 0;
}
.cover { position: relative; display: block; background: var(--primary-soft); }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.ratio-wide { aspect-ratio: 16 / 9; }
.ratio-tall { aspect-ratio: 3 / 4; }
.stream-body { padding: 16px 16px 18px; }
.stream-body h3 { margin: 0 0 6px; font-size: 20px; line-height: 1.4; }
.stream-body h3 a:hover { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.stream-body p { margin: 0; color: var(--muted); font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
 display: inline-flex;
 align-items: center;
 min-height: 36px;
 padding: 0 14px;
 border-radius: 999px;
 background: #fff;
 border: 1px solid var(--line);
 color: var(--primary-deep);
 font-size: 14px;
 font-weight: 680;
}
.dim-grid {
 margin-top: 18px;
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 14px;
}
.dim-item {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 16px;
}
.dim-item strong { display: block; color: var(--primary-deep); margin-bottom: 4px; }
.dim-item span { color: var(--muted); font-size: 14px; }
.feature-split {
 display: grid;
 grid-template-columns: 1.35fr 0.8fr;
 gap: 16px;
 align-items: stretch;
}
.feature-main {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 overflow: hidden;
 display: grid;
 grid-template-rows: auto 1fr;
}
.feature-copy { padding: 18px 18px 20px; }
.feature-copy h2 { margin: 0 0 8px; font-size: 28px; line-height: 1.35; }
.feature-copy h2 a:hover { text-decoration: underline; text-underline-offset: 3px; color: var(--primary); }
.feature-copy p { margin: 0; color: var(--muted); }
.side-col { display: flex; flex-direction: column; gap: 12px; }
.side-item {
 display: grid;
 grid-template-columns: 108px 1fr;
 gap: 12px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 overflow: hidden;
 min-height: 108px;
}
.side-item .cover { min-height: 108px; }
.side-item h3 { margin: 12px 12px 0 0; font-size: 16px; line-height: 1.45; }
.side-item h3 a:hover { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.side-item .meta-line { margin: 6px 12px 12px 0; }
.guide-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.guide-item {
 display: grid;
 grid-template-columns: 92px 1fr 120px;
 gap: 16px;
 align-items: center;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
}
.guide-item:hover { background: #f7fafc; }
.guide-thumb {
 width: 92px;
 height: 64px;
 border-radius: 10px;
 overflow: hidden;
 border: 1px solid var(--line);
}
.guide-item h3 { margin: 0 0 4px; font-size: 18px; }
.guide-item h3 a:hover { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.guide-item p { margin: 0; color: var(--muted); font-size: 14px; }
.guide-item time { color: var(--primary); font-size: 13px; font-weight: 700; text-align: right; }
.hint-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 padding: 16px 18px;
 background: var(--accent-soft);
 border: 1px solid #b7e4e1;
 border-radius: var(--radius);
}
.hint-bar p { margin: 0; color: var(--primary-deep); }
.hint-bar a { font-weight: 700; color: var(--accent-dark); white-space: nowrap; }
.hint-bar a:hover { text-decoration: underline; text-underline-offset: 3px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: transparent; }
.faq-item summary {
 list-style: none;
 cursor: pointer;
 padding: 16px 4px;
 font-weight: 700;
 color: var(--primary-deep);
 display: flex;
 justify-content: space-between;
 gap: 12px;
 align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "";
 width: 8px;
 height: 8px;
 border-right: 2px solid var(--primary);
 border-bottom: 2px solid var(--primary);
 transform: rotate(45deg);
 flex: none;
}
.faq-item[open] summary::after { transform: rotate(225deg); margin-top: 4px; }
.faq-item summary:hover { color: var(--primary); }
.faq-item p { margin: 0; padding: 0 4px 16px; color: var(--muted); max-width: 760px; }
.slim-band { padding: 28px 0 72px; background: var(--bg); }
.slim-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 padding: 16px 18px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.slim-copy strong { display: block; font-size: 18px; }
.slim-copy span { color: var(--muted); font-size: 14px; }
.slim-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.site-footer {
 background: #1e3348;
 color: #d5e0ec;
 padding: 48px 0 22px;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.foot-brand strong { color: #fff; font-size: 18px; display: block; margin-bottom: 8px; }
.foot-brand p, .foot-contact p { margin: 0 0 8px; color: #c5d3e2; font-size: 14px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.foot-links a { color: #e7eef6; }
.foot-links a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.copyright {
 margin-top: 28px;
 padding-top: 16px;
 border-top: 1px solid rgba(255,255,255,0.12);
 color: #b7c6d6;
 font-size: 13px;
}
@media (max-width: 1024px) {
 .cat-head h1 { font-size: 34px; }
 .section-head h2, .feature-copy h2 { font-size: 26px; }
 .dim-grid { grid-template-columns: 1fr 1fr; }
 .feature-split { grid-template-columns: 1fr; }
 .guide-item { grid-template-columns: 92px 1fr; }
 .guide-item time { display: none; }
}
@media (max-width: 768px) {
 .nav-toggle { display: inline-flex; }
 .nav-panel {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  margin: 0;
  background: linear-gradient(180deg, #1e3a56 0%, #31567c 100%);
  flex-direction: column;
  align-items: stretch;
  padding: 18px;
  gap: 8px;
  overflow: auto;
 }
 .nav-panel.open { display: flex; }
 .nav-panel a { min-height: 48px; display: flex; align-items: center; font-size: 17px; }
 .nav-panel a.btn-accent { justify-content: center; }
 .band { padding: 48px 0; }
 .cat-head { padding: 32px 0 20px; }
 .stream, .span-card, .foot-grid { grid-template-columns: 1fr; }
 .stream-card:nth-child(3),
 .stream-card:nth-child(4),
 .span-card { margin-top: 0; }
 .sort-state { margin-left: 0; width: 100%; }
 .side-item { grid-template-columns: 96px 1fr; }
 .hint-bar, .slim-bar { flex-direction: column; align-items: flex-start; }
 .ratio-tall { aspect-ratio: 16 / 10; }
}
@media (max-width: 520px) {
 .container { width: min(var(--max), calc(100% - 28px)); }
 .logo { font-size: 15px; max-width: 210px; }
 .cat-head h1 { font-size: 28px; }
 .section-head h2 { font-size: 24px; }
 .dim-grid, .guide-item { grid-template-columns: 1fr; }
 .guide-thumb { width: 100%; height: 140px; }
 .slim-actions, .slim-actions .btn { width: 100%; }
 .band { padding: 36px 0; }
 .slim-band { padding-bottom: 40px; }
}