/* roulang page: index */
:root {
  --bg: #071018;
  --bg-soft: #0d1b2a;
  --paper: #f3f6f8;
  --paper-2: #ffffff;
  --ink: #e7eef6;
  --ink-dark: #122033;
  --muted: #8ea0b5;
  --muted-dark: #5c6d80;
  --line: rgba(255,255,255,.12);
  --line-dark: #d7e0ea;
  --accent: #d6ff4a;
  --accent-2: #3ecbff;
  --amber: #ffb020;
  --card: #12283a;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(4, 12, 22, .28);
  --header: 74px;
  --max: 1160px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --num: "Oswald", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-dark);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  padding-bottom: 72px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
h1, h2, h3 { line-height: 1.28; margin: 0 0 .6em; font-weight: 900; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--header);
  background: rgba(7, 16, 24, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-bar { height: var(--header); display: flex; align-items: center; gap: 22px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); min-width: 148px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent); color: #132000;
  font-weight: 900; font-size: 18px;
}
.logo strong { font-size: 20px; letter-spacing: .04em; }
.logo small { display: block; color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-link, .dropdown a {
  color: var(--ink); padding: 8px 14px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
}
.nav-link:hover, .nav-link:focus-visible, .dropdown a:hover, .dropdown a:focus-visible {
  background: rgba(214, 255, 74, .14); color: var(--accent); outline: none;
}
.nav-link.active { background: var(--accent); color: #142000; }
.nav-drop { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 196px; padding: 10px;
  background: #102232; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow); display: none;
}
.nav-drop:hover .dropdown, .nav-drop:focus-within .dropdown { display: grid; gap: 4px; }
.dropdown a { display: block; border-radius: 10px; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; margin-left: auto; width: 44px; height: 44px;
  border-radius: 12px; border: 1px solid var(--line);
  align-items: center; justify-content: center; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  display: block; width: 18px; height: 2px; background: var(--ink); position: relative;
}
.nav-burger span::before, .nav-burger span::after { content: ""; position: absolute; left: 0; }
.nav-burger span::before { top: -6px; }
.nav-burger span::after { top: 6px; }
.hero {
  position: relative; color: var(--ink);
  background:
    linear-gradient(180deg, rgba(7,16,24,.9), rgba(7,16,24,.74) 42%, rgba(7,16,24,.94)),
    url("/assets/images/8553113b6984cebc.jpg") center/cover no-repeat;
  padding: 54px 0 64px;
}
.pain {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 0 0 16px; padding: 6px 12px; border-radius: 999px;
  background: rgba(255, 176, 32, .15); color: #ffd48a;
  border: 1px solid rgba(255, 176, 32, .35); font-weight: 700; font-size: 14px;
}
.hero h1 { font-size: clamp(32px, 5vw, 54px); max-width: 16em; }
.lead { max-width: 760px; color: #d5e2ef; font-size: 17px; }
.demo {
  margin-top: 28px; background: rgba(8, 20, 32, .78);
  border: 1px solid var(--line); border-radius: 24px;
  box-shadow: var(--shadow); overflow: hidden;
}
.demo-top, .demo-foot {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 18px; background: rgba(255,255,255,.03);
}
.demo-top strong { font-family: var(--num); letter-spacing: .08em; font-weight: 600; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700;
  background: rgba(62, 203, 255, .15); color: var(--accent-2); border: 1px solid rgba(62, 203, 255, .35);
}
.lane { display: grid; grid-template-columns: 92px 1.3fr .8fr auto; gap: 12px; align-items: center; padding: 16px 18px; border-top: 1px solid var(--line); }
.lane b { font-family: var(--num); font-size: 22px; font-weight: 500; color: var(--accent); }
.lane span { color: var(--muted); font-size: 14px; }
.tag { border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700; background: rgba(214,255,74,.12); color: var(--accent); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; cursor: pointer; border-radius: 999px; padding: 12px 20px;
  font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #142000; box-shadow: 0 8px 20px rgba(214,255,74,.2); }
.btn-primary:hover { background: #e7ff86; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-dark { background: var(--ink-dark); color: white; }
.btn-dark:hover { background: #1d334d; }
section { padding: 72px 0; }
.sec-head { max-width: 760px; margin-bottom: 28px; }
.sec-head h2 { font-size: clamp(26px, 3vw, 36px); }
.sec-head p { color: var(--muted-dark); margin: 0; }
.kicker { color: #0d7d93; font-weight: 800; letter-spacing: .14em; font-size: 12px; margin-bottom: 8px; }
.merit-band { display: grid; grid-template-columns: 1.3fr .9fr; gap: 16px; }
.merit-main, .merit-side article, .panel, .voice, .topic, .spec, .faq-item, .form-card, .entry-row {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(16, 32, 51, .05);
}
.merit-main {
  padding: 28px; min-height: 280px; color: var(--ink);
  background:
    linear-gradient(160deg, rgba(7,16,24,.2), rgba(7,16,24,.78)),
    url("/assets/images/67f21feee896f9dc.jpg") center/cover no-repeat;
}
.merit-main p, .merit-side p, .entry-row p, .topic p, .voice p { color: inherit; }
.merit-main p { color: #d5e2ef; }
.merit-side { display: grid; gap: 16px; }
.merit-side article { padding: 22px; }
.idx { font-family: var(--num); color: var(--accent-2); font-size: 20px; }
.matrix { display: grid; gap: 12px; }
.entry-row { display: grid; grid-template-columns: 72px 1fr auto; gap: 16px; align-items: center; padding: 18px 20px; }
.entry-row:hover { border-color: #9ad7ea; transform: translateX(4px); transition: .18s ease; }
.entry-no { font-family: var(--num); font-size: 28px; color: #0d7d93; }
.entry-row h3 { margin: 0 0 4px; font-size: 20px; }
.entry-row p { margin: 0; color: var(--muted-dark); }
.rail { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.card, .post {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover, .post:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card img, .topic img, .side-visual img { width: 100%; height: 160px; object-fit: cover; }
.card-body, .post { padding: 16px 16px 18px; }
.card h3, .post h3 { font-size: 18px; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted-dark); font-size: 13px; }
.badge { background: #e7f8ff; color: #0b6d86; border-radius: 999px; padding: 2px 8px; font-weight: 800; }
.empty-note { padding: 18px; border: 1px dashed #b7c6d4; border-radius: 14px; color: var(--muted-dark); background: #fff; }
.bento { display: grid; grid-template-columns: 1.4fr 1fr; gap: 14px; }
.topic { overflow: hidden; }
.topic-copy { padding: 18px 18px 20px; }
.topic.tall { display: grid; grid-template-columns: 1.1fr .9fr; }
.topic.tall img { height: 100%; min-height: 220px; }
.stack { display: grid; gap: 14px; }
.news-layout { display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px; }
.post { display: grid; grid-template-columns: 92px 1fr; gap: 12px; margin-bottom: 12px; }
.post time { font-family: var(--num); font-size: 18px; color: #0d7d93; }
.side-visual { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-dark); background: #fff; }
.side-visual img { height: 210px; }
.side-visual div { padding: 16px; }
.more { display: inline-flex; margin-top: 8px; font-weight: 800; color: #0b6d86; }
.more:hover { color: #08485a; }
.metrics {
  background:
    linear-gradient(180deg, rgba(7,16,24,.92), rgba(7,16,24,.88)),
    url("/assets/images/5f0a78a3c2cd03bc.webp") center/cover no-repeat;
  color: var(--ink);
}
.metrics .sec-head p { color: #c5d4e4; }
.metric-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 12px; }
.metric {
  background: rgba(16, 34, 50, .86); border: 1px solid var(--line); border-radius: 20px; padding: 20px;
}
.metric strong { display: block; font-family: var(--num); font-size: 40px; font-weight: 500; color: var(--accent); }
.metric span { color: #c5d4e4; }
.voices { display: grid; grid-template-columns: 1.3fr .7fr; gap: 14px; }
.voice { padding: 22px; }
.voice.big { background: #10283a; color: var(--ink); }
.stars { color: var(--amber); letter-spacing: 2px; margin-bottom: 8px; }
.who { color: var(--muted); font-size: 13px; }
.voice.big .who { color: #b7c8d8; }
.timeline { display: grid; gap: 0; border-left: 3px solid #b7e6f3; margin-left: 10px; }
.fix { position: relative; padding: 0 0 22px 22px; }
.fix::before {
  content: ""; position: absolute; left: -8px; top: 6px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--accent); border: 3px solid #083246;
}
.fix h3 { font-size: 18px; margin-bottom: 4px; }
.compare { display: grid; grid-template-columns: 1fr 1fr; min-height: 320px; border-radius: 24px; overflow: hidden; border: 1px solid var(--line-dark); }
.compare article { padding: 28px; }
.compare .old { background: #e7edf2; }
.compare .now { background: #10283a; color: var(--ink); }
.compare ul { margin: 0; padding-left: 18px; }
.pledge { display: flex; flex-wrap: wrap; gap: 10px; }
.pledge span {
  display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line-dark);
  border-radius: 999px; padding: 10px 14px; font-weight: 800;
}
.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.spec { padding: 18px 18px 8px; }
.spec div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px dashed var(--line-dark); padding: 10px 0; }
.spec dt { font-weight: 800; }
.spec dd { margin: 0; color: var(--muted-dark); text-align: right; }
.faq-list { display: grid; gap: 10px; }
.faq-item { padding: 6px 18px; }
.faq-item summary { cursor: pointer; font-weight: 800; padding: 12px 0; }
.faq-item p { color: var(--muted-dark); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; align-items: stretch; }
.form-card { padding: 22px; }
label { display: block; font-weight: 800; margin: 10px 0 6px; }
input, textarea {
  width: 100%; border: 1px solid #c9d5e2; background: #f8fbfd; border-radius: 12px; padding: 12px 14px; color: var(--ink-dark);
}
input:focus, textarea:focus { outline: 2px solid #8fd8ee; border-color: #8fd8ee; }
.fine { color: var(--muted-dark); font-size: 13px; }
.site-footer { background: #071018; color: #c5d4e4; padding: 36px 0 28px; }
.foot-grid { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--accent); font-weight: 800; }
.sticky-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: rgba(7, 16, 24, .94); color: var(--ink);
  border-top: 1px solid var(--line); backdrop-filter: blur(10px);
}
.sticky-inner { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.bg-plain { background: var(--paper); }
.bg-white { background: #fff; }
@media (max-width: 1024px) {
  .rail, .metric-grid { grid-template-columns: 1fr 1fr; }
  .topic.tall, .news-layout, .voices, .contact-grid, .merit-band, .bento { grid-template-columns: 1fr; }
  .lane { grid-template-columns: 72px 1fr; }
  .lane span:nth-child(3), .tag { grid-column: 2; }
}
@media (max-width: 768px) {
  .nav-burger { display: inline-flex; }
  .nav {
    display: none; position: absolute; top: var(--header); left: 0; right: 0;
    background: #0c1a28; flex-direction: column; align-items: stretch; padding: 12px; gap: 6px;
    border-bottom: 1px solid var(--line);
  }
  #nav-toggle:checked ~ .nav { display: flex; }
  .dropdown { position: static; display: grid; box-shadow: none; background: transparent; border: 0; padding: 0 0 0 10px; }
  .compare, .specs, .entry-row, .post { grid-template-columns: 1fr; }
  .entry-row { align-items: start; }
  .metric-grid, .rail { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .container { width: min(var(--max), calc(100% - 20px)); }
  section { padding: 52px 0; }
  .hero { padding-top: 32px; }
  .logo small { display: none; }
  .demo-top, .demo-foot, .sticky-inner { flex-direction: column; align-items: flex-start; }
  .sticky-inner { padding: 8px 0; }
  .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --bg: #071018;
  --bg-soft: #0d1b2a;
  --paper: #f3f6f8;
  --paper-2: #ffffff;
  --ink: #e7eef6;
  --ink-dark: #122033;
  --muted: #8ea0b5;
  --muted-dark: #5c6d80;
  --line: rgba(255,255,255,.12);
  --line-dark: #d7e0ea;
  --accent: #d6ff4a;
  --accent-2: #3ecbff;
  --amber: #ffb020;
  --card: #12283a;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(4, 12, 22, .28);
  --header: 74px;
  --max: 1160px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --num: "Oswald", "Noto Sans SC", sans-serif;
}
/* roulang page: article */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-dark);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  padding-bottom: 72px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 12px; }
p { margin: 0 0 12px; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--header);
  background: rgba(7, 16, 24, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-bar { height: var(--header); display: flex; align-items: center; gap: 22px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); min-width: 148px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent); color: #132000;
  font-weight: 900; font-size: 18px;
}
.logo strong { font-size: 20px; letter-spacing: .04em; }
.logo small { display: block; color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-link, .dropdown a {
  color: var(--ink); padding: 8px 14px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
}
.nav-link:hover, .nav-link:focus-visible, .dropdown a:hover, .dropdown a:focus-visible {
  background: rgba(214, 255, 74, .14); color: var(--accent); outline: none;
}
.nav-link.active { background: var(--accent); color: #142000; }
.nav-drop { position: relative; }
.dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 188px;
  padding: 8px;
  background: #0e2233;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 50;
}
.nav-drop:hover .dropdown, .nav-drop:focus-within .dropdown { display: grid; gap: 4px; }
.dropdown a { display: block; border-radius: 10px; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; margin-left: auto; width: 44px; height: 44px;
  border-radius: 12px; border: 1px solid var(--line);
  align-items: center; justify-content: center; cursor: pointer;
}
.nav-burger:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  display: block; width: 18px; height: 2px; background: var(--ink); position: relative;
}
.nav-burger span::before, .nav-burger span::after { content: ""; position: absolute; left: 0; }
.nav-burger span::before { top: -6px; }
.nav-burger span::after { top: 6px; }
.hero {
  position: relative; color: var(--ink);
  background:
    linear-gradient(180deg, rgba(7,16,24,.9), rgba(7,16,24,.74) 42%, rgba(7,16,24,.94)),
    url("/assets/images/8553113b6984cebc.jpg") center/cover no-repeat;
  padding: 54px 0 64px;
}
.hero h1, .article-hero h1 { font-size: clamp(32px, 5vw, 54px); max-width: 16em; }
.lead, .dek { max-width: 760px; color: #d5e2ef; font-size: 17px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700;
  background: rgba(62, 203, 255, .15); color: var(--accent-2); border: 1px solid rgba(62, 203, 255, .35);
}
.tag { border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700; background: rgba(214,255,74,.12); color: var(--accent); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; cursor: pointer; border-radius: 999px; padding: 12px 20px;
  font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #142000; box-shadow: 0 8px 20px rgba(214,255,74,.2); }
.btn-primary:hover { background: #e7ff86; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-dark { background: var(--ink-dark); color: white; }
.btn-dark:hover { background: #1d334d; }
section { padding: 72px 0; }
.merit-main, .merit-side article, .panel, .voice, .topic, .spec, .faq-item, .form-card, .entry-row, .sheet, .compare-card, .scene-lead, .scene-mini, .cta-box {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(16, 32, 51, .05);
}
.merit-main {
  padding: 28px; min-height: 280px; color: var(--ink);
  background:
    linear-gradient(160deg, rgba(7,16,24,.2), rgba(7,16,24,.78)),
    url("/assets/images/67f21feee896f9dc.jpg") center/cover no-repeat;
}
.merit-main p { color: #d5e2ef; }
.entry-row { display: grid; grid-template-columns: 72px 1fr auto; gap: 16px; align-items: center; padding: 18px 20px; }
.entry-row:hover { border-color: #9ad7ea; transform: translateX(4px); transition: .18s ease; }
.entry-row h3 { margin: 0 0 4px; font-size: 20px; }
.entry-row p { margin: 0; color: var(--muted-dark); }
.card, .post, .sheet {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover, .post:hover, .scene-mini:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card img, .topic img, .side-visual img { width: 100%; height: 160px; object-fit: cover; }
.card-body, .post { padding: 16px 16px 18px; }
.card h3, .post h3 { font-size: 18px; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted); font-size: 13px; align-items: center; }
.badge { background: #e7f8ff; color: #0b6d86; border-radius: 999px; padding: 2px 8px; font-weight: 800; }
.topic.tall img { height: 100%; min-height: 220px; }
.side-visual { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(62,203,255,.25); }
.side-visual img { height: 210px; }
.metric-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 12px; }
.faq-list { display: grid; gap: 10px; }
.faq-item { padding: 6px 18px; }
.faq-item summary { cursor: pointer; font-weight: 800; padding: 12px 0; }
.faq-item summary:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }
.faq-item p { color: var(--muted-dark); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; align-items: stretch; }
.form-card { padding: 22px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line-dark);
  background: #fff;
  color: var(--ink-dark);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent-2);
  border-color: transparent;
}
.site-footer {
  background: #071018;
  color: var(--ink);
  padding: 42px 0 32px;
  border-top: 1px solid var(--line);
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 24px; align-items: start; }
.site-footer strong { font-size: 20px; }
.site-footer p { color: var(--muted); margin: 8px 0 0; }
.site-footer a { color: var(--accent); font-weight: 800; }
.site-footer a:hover { color: #e7ff86; }
.article-hero {
  position: relative;
  color: var(--ink);
  padding: 42px 0 50px;
  background:
    linear-gradient(100deg, rgba(7,16,24,.94) 8%, rgba(7,16,24,.78) 52%, rgba(7,16,24,.45)),
    url("/assets/images/98eb2bf0af5db57f.png") center/cover no-repeat;
}
.article-hero h1 { margin: 12px 0; }
.crumb { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--accent); font-weight: 800; }
.kicker { color: #0b6d86; font-size: 13px; font-weight: 800; letter-spacing: .14em; margin-bottom: 8px; }
.dark-copy .kicker, .compare-sec .kicker, .cta-sec .kicker { color: var(--accent); }
.article-wrap { background: var(--paper); }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 22px; align-items: start; }
.sheet { padding: 26px 26px 10px; }
.prose { color: var(--ink-dark); font-size: 17px; }
.prose h2 { font-size: 28px; margin: 28px 0 10px; }
.prose h3 { font-size: 20px; margin: 22px 0 8px; }
.prose p, .prose li { color: #24364a; }
.prose a { color: #0b6d86; font-weight: 800; border-bottom: 1px solid rgba(11,109,134,.35); }
.prose a:hover { color: #08485a; }
.prose img { border-radius: 14px; margin: 16px 0; height: auto; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose blockquote {
  margin: 18px 0;
  padding: 12px 16px;
  border-left: 4px solid var(--accent);
  background: #f4f8e8;
  border-radius: 0 12px 12px 0;
}
.prose table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; }
.prose th, .prose td { border: 1px solid var(--line-dark); padding: 8px 10px; text-align: left; }
.not-found {
  min-height: 180px;
  display: grid;
  gap: 16px;
  align-content: center;
  padding: 28px;
  border: 1px dashed var(--line-dark);
  border-radius: var(--radius);
  background: #f8fbfc;
}
.not-found p { margin: 0; font-size: 28px; font-weight: 900; }
.side-col { position: sticky; top: 92px; display: grid; gap: 14px; }
.pull-quote {
  margin: 0;
  padding: 22px 20px;
  border-left: 4px solid var(--accent);
  background: #102433;
  color: var(--ink);
  border-radius: 0 18px 18px 0;
  font-size: 22px;
  line-height: 1.55;
  font-weight: 800;
}
.pull-quote cite {
  display: block;
  margin-top: 12px;
  color: var(--accent-2);
  font-style: normal;
  font-size: 13px;
  letter-spacing: .08em;
  font-weight: 700;
}
.hud {
  background: linear-gradient(180deg, #10283a, #0c1c2b);
  color: var(--ink);
  border-radius: var(--radius);
  border: 1px solid rgba(62,203,255,.28);
  padding: 16px 16px 8px;
  box-shadow: var(--shadow);
}
.hud h2 { font-size: 16px; letter-spacing: .08em; color: var(--accent); }
.hud ul { list-style: none; margin: 0; padding: 0; }
.hud li {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #d5e2ef;
}
.hud b { font-family: var(--num); color: var(--accent); font-weight: 600; letter-spacing: .04em; }
.point-sec { background: #e8eef3; }
.point-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; }
.point-photo { margin: 0; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); min-height: 280px; }
.point-photo img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
.point-list { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 12px; }
.point-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: center;
  background: var(--paper-2);
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  padding: 12px 14px;
}
.point-list strong { display: block; }
.point-list span { color: var(--muted-dark); }
.num-badge {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: #122033; color: var(--accent);
  font-family: var(--num); font-size: 20px;
}
.compare-sec {
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(7,16,24,.94), rgba(7,16,24,.9)),
    url("/assets/images/13bdcf8976f966cd.png") center/cover no-repeat;
}
.compare-head { display: flex; justify-content: space-between; gap: 18px; align-items: end; margin-bottom: 18px; }
.compare-head p { color: #d5e2ef; max-width: 640px; margin: 0; }
.stat-row { display: flex; gap: 16px; }
.stat-row div { min-width: 92px; }
.stat-row b { display: block; font-family: var(--num); font-size: 34px; color: var(--accent); line-height: 1; }
.stat-row small { color: var(--muted); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compare-card {
  background: rgba(16, 36, 52, .9);
  border: 1px solid rgba(62,203,255,.25);
  color: var(--ink);
  padding: 20px;
  box-shadow: none;
}
.compare-card h3 { display: flex; align-items: center; gap: 8px; }
.compare-card p { color: #d5e2ef; }
.compare-card ul { margin: 0; padding-left: 18px; color: #d5e2ef; }
.rhythm-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.rhythm-item {
  background: var(--paper-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 18px 16px 16px;
  min-height: 180px;
  position: relative;
}
.rhythm-item i { color: #0b6d86; font-size: 18px; }
.rhythm-item em {
  display: block;
  margin: 10px 0 6px;
  font-family: var(--num);
  font-style: normal;
  color: var(--amber);
  letter-spacing: .06em;
}
.scene-sec { background: linear-gradient(180deg, #f7fafc, #e7eef4); }
.scene-layout { display: grid; grid-template-columns: 1.35fr .8fr; gap: 16px; align-items: stretch; }
.scene-lead { display: grid; grid-template-rows: 240px 1fr; overflow: hidden; }
.scene-lead img { width: 100%; height: 240px; object-fit: cover; }
.scene-lead div, .scene-mini { padding: 16px 18px 18px; }
.scene-stack { display: grid; gap: 16px; }
.scene-mini { display: grid; grid-template-columns: 112px 1fr; gap: 0; overflow: hidden; padding: 0; align-items: stretch; }
.scene-mini img { width: 112px; height: 100%; min-height: 132px; object-fit: cover; }
.more-link { justify-self: start; }
.cta-sec { padding-top: 20px; }
.cta-box {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 28px;
  color: var(--ink);
  background:
    linear-gradient(100deg, rgba(7,16,24,.92), rgba(7,16,24,.72)),
    url("/assets/images/5f0a78a3c2cd03bc.webp") center/cover no-repeat;
  border: 0;
}
.cta-box p { color: #d5e2ef; margin: 0; max-width: 640px; }
.read-dock {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(7,16,24,.94);
  color: var(--ink);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.read-dock span { color: var(--muted); }
.read-dock a { color: #142000; background: var(--accent); border-radius: 999px; padding: 8px 14px; font-weight: 800; }
.read-dock a:hover { background: #e7ff86; }
.read-dock a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }
@media (max-width: 1024px) {
  .article-grid, .point-grid, .scene-layout, .compare-head, .cta-box, .foot-grid { grid-template-columns: 1fr; display: grid; }
  .rhythm-list { grid-template-columns: 1fr 1fr; }
  .compare-head { align-items: start; }
  .side-col { position: static; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-burger { display: flex; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0; right: 0;
    margin-left: 0;
    background: #071018;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 18px;
    border-bottom: 1px solid var(--line);
  }
  .nav-toggle:checked ~ .nav { display: flex; }
  .dropdown { position: static; display: grid; background: transparent; border: 0; box-shadow: none; padding: 0 0 8px 10px; }
  .header-bar { gap: 10px; }
  section { padding: 52px 0; }
  .article-hero { padding: 28px 0 36px; }
  .sheet { padding: 18px 16px 6px; }
  .read-dock span { display: none; }
}
@media (max-width: 520px) {
  .rhythm-list, .compare-grid, .scene-mini { grid-template-columns: 1fr; }
  .scene-mini img { width: 100%; height: 160px; }
  .stat-row { flex-wrap: wrap; }
  .point-list li { grid-template-columns: 44px 1fr; }
  .cta-box, .read-dock { align-items: stretch; flex-direction: column; }
  .hero h1, .article-hero h1 { font-size: 30px; }
}

/* roulang page: category1 */
:root {
  --bg: #071018;
  --bg-soft: #0d1b2a;
  --paper: #f3f6f8;
  --paper-2: #ffffff;
  --ink: #e7eef6;
  --ink-dark: #122033;
  --muted: #8ea0b5;
  --muted-dark: #5c6d80;
  --line: rgba(255,255,255,.12);
  --line-dark: #d7e0ea;
  --accent: #d6ff4a;
  --accent-2: #3ecbff;
  --amber: #ffb020;
  --card: #12283a;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(4, 12, 22, .28);
  --header: 74px;
  --max: 1160px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --num: "Oswald", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-dark);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  padding-bottom: 72px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; }
h1, h2, h3, p { margin-top: 0; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--header);
  background: rgba(7, 16, 24, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-bar { height: var(--header); display: flex; align-items: center; gap: 22px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); min-width: 148px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent); color: #132000;
  font-weight: 900; font-size: 18px;
}
.logo strong { font-size: 20px; letter-spacing: .04em; }
.logo small { display: block; color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-link, .dropdown a {
  color: var(--ink); padding: 8px 14px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
}
.nav-link:hover, .nav-link:focus-visible, .dropdown a:hover, .dropdown a:focus-visible {
  background: rgba(214, 255, 74, .14); color: var(--accent); outline: none;
}
.nav-link.active { background: var(--accent); color: #142000; }
.nav-drop { position: relative; }
.dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 188px;
  padding: 8px;
  background: #0e2233;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 30;
}
.nav-drop:hover .dropdown, .nav-drop:focus-within .dropdown { display: grid; gap: 4px; }
.dropdown a { display: block; border-radius: 10px; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; margin-left: auto; width: 44px; height: 44px;
  border-radius: 12px; border: 1px solid var(--line);
  align-items: center; justify-content: center; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  display: block; width: 18px; height: 2px; background: var(--ink); position: relative;
}
.nav-burger span::before, .nav-burger span::after { content: ""; position: absolute; left: 0; }
.nav-burger span::before { top: -6px; }
.nav-burger span::after { top: 6px; }
.hero {
  position: relative; color: var(--ink);
  background:
    linear-gradient(105deg, rgba(7,16,24,.92) 0%, rgba(7,16,24,.78) 48%, rgba(7,16,24,.55) 100%),
    url("/assets/images/13bdcf8976f966cd.png") center/cover no-repeat;
  padding: 48px 0 58px;
}
.hero-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: stretch; }
.kicker { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.hero h1 { font-size: clamp(32px, 4.6vw, 52px); line-height: 1.18; letter-spacing: -.02em; margin-bottom: 12px; max-width: 12em; }
.lead { max-width: 640px; color: #d5e2ef; font-size: 17px; margin-bottom: 18px; }
.chip, .tag {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700;
}
.chip { background: rgba(62, 203, 255, .15); color: var(--accent-2); border: 1px solid rgba(62, 203, 255, .35); }
.tag { background: rgba(214,255,74,.12); color: var(--accent); border: 1px solid rgba(214,255,74,.28); }
.pain-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pain-list li {
  display: flex; gap: 10px; align-items: center;
  color: #d7e4f0; font-weight: 700;
}
.pain-list i { color: var(--amber); width: 18px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; cursor: pointer; border-radius: 999px; padding: 12px 20px;
  font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #142000; box-shadow: 0 8px 20px rgba(214,255,74,.2); }
.btn-primary:hover, .btn-primary:active { background: #e7ff86; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { background: rgba(255,255,255,.06); }
.btn-dark { background: var(--ink-dark); color: white; }
.btn-dark:hover, .btn-dark:active { background: #1d334d; }
.btn-block { width: 100%; }
section { padding: 72px 0; }
.section-head { display: flex; justify-content: space-between; gap: 18px; align-items: end; margin-bottom: 22px; }
.section-head h2, .block-title { font-size: clamp(26px, 3vw, 36px); line-height: 1.25; margin-bottom: 8px; }
.section-head p, .muted { color: var(--muted-dark); margin-bottom: 0; }
.panel, .voice, .topic, .spec, .faq-item, .form-card, .entry-row, .lane, .step, .post, .metric, .scene-row {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(16, 32, 51, .05);
}
.form-card { padding: 22px; color: var(--ink-dark); background: rgba(255,255,255,.96); }
.form-card h2 { font-size: 22px; margin-bottom: 6px; }
.form-card .hint { color: var(--muted-dark); font-size: 14px; margin-bottom: 14px; }
.field { display: grid; gap: 6px; margin-bottom: 12px; }
.field span { font-size: 13px; font-weight: 800; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line-dark);
  background: #f7fafc;
  color: var(--ink-dark);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
}
textarea { min-height: 84px; resize: vertical; }
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent-2);
  border-color: transparent;
  background: #fff;
}
.echo-box {
  background: #f3ffe0; border: 1px solid #d3ef93; color: #243000;
  border-radius: 12px; padding: 10px 12px; margin-bottom: 12px; font-weight: 700;
}
.window-grid { display: grid; grid-template-columns: 1.35fr .85fr; gap: 14px; }
.lane { overflow: hidden; min-height: 100%; }
.lane img, .scene-row img, .news-visual img { width: 100%; object-fit: cover; }
.lane img { height: 230px; }
.lane-body, .scene-copy { padding: 16px 18px 18px; }
.lane h3, .scene-copy h3, .step h3, .post h3 { margin-bottom: 6px; font-size: 20px; }
.lane p, .scene-copy p, .step p, .post p { color: var(--muted-dark); margin-bottom: 0; }
.stack { display: grid; gap: 14px; }
.stack .lane img { height: 112px; }
.hud {
  background:
    radial-gradient(circle at 12% 20%, rgba(62,203,255,.16), transparent 28%),
    linear-gradient(180deg, #071018, #102433);
  color: var(--ink);
}
.hud .section-head p { color: #b7c8d8; }
.metric-grid { display: grid; grid-template-columns: 1.15fr repeat(3, 1fr); gap: 12px; }
.metric { background: rgba(18,40,58,.86); border-color: var(--line); color: var(--ink); padding: 18px; }
.metric b {
  display: block; font-family: var(--num); font-size: 40px; letter-spacing: .03em;
  color: var(--accent); line-height: 1; margin: 8px 0;
}
.metric span { color: var(--muted); font-size: 13px; }
.metric.lead-metric { background:
  linear-gradient(160deg, rgba(7,16,24,.25), rgba(7,16,24,.72)),
  url("/assets/images/67f21feee896f9dc.jpg") center/cover no-repeat;
}
.scene-list { display: grid; gap: 12px; }
.scene-row { display: grid; grid-template-columns: 168px 1fr auto; gap: 16px; align-items: center; padding: 10px; }
.scene-row img { height: 108px; border-radius: 12px; }
.scene-row:hover { border-color: #9ad7ea; transform: translateX(4px); transition: .18s ease; }
.flow-line { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.step { padding: 18px; position: relative; }
.step em {
  font-family: var(--num); font-style: normal; color: var(--accent-2);
  font-size: 28px; display: block; line-height: 1; margin-bottom: 8px;
}
.compare { display: grid; grid-template-columns: .9fr 1.1fr; gap: 16px; align-items: stretch; }
.compare-visual {
  border-radius: var(--radius); overflow: hidden; min-height: 320px; position: relative; color: white;
  background:
    linear-gradient(180deg, rgba(7,16,24,.15), rgba(7,16,24,.78)),
    url("/assets/images/98eb2bf0af5db57f.png") center/cover no-repeat;
  display: flex; align-items: end; padding: 22px;
}
.compare-visual h2 { font-size: 32px; margin-bottom: 6px; }
.split-board { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.board {
  background: var(--paper-2); border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 18px;
}
.board h3 { margin-bottom: 10px; }
.board ul { margin: 0; padding-left: 18px; color: var(--muted-dark); }
.board li + li { margin-top: 8px; }
.news-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 18px; align-items: start; }
.news-visual img { height: 220px; border-radius: var(--radius); }
.news-list { display: grid; gap: 10px; }
.post { display: block; padding: 16px 16px 18px; }
.post:hover { transform: translateY(-3px); box-shadow: var(--shadow); transition: .18s ease; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted-dark); font-size: 13px; margin-bottom: 6px; }
.badge { background: #e7f8ff; color: #0b6d86; border-radius: 999px; padding: 2px 8px; font-weight: 800; }
.empty-note { margin: 0; color: var(--muted-dark); padding: 18px; background: var(--paper-2); border-radius: var(--radius); border: 1px dashed var(--line-dark); }
.faq-list { display: grid; gap: 10px; }
.faq-item { padding: 6px 18px; }
.faq-item summary { cursor: pointer; font-weight: 800; padding: 12px 0; }
.faq-item p { color: var(--muted-dark); margin-bottom: 12px; }
.faq-item summary:focus-visible { outline: 2px solid var(--accent-2); border-radius: 8px; }
.close-band {
  background:
    linear-gradient(100deg, rgba(7,16,24,.88), rgba(7,16,24,.66)),
    url("/assets/images/56be889cc15de4a1.webp") center/cover no-repeat;
  color: var(--ink);
}
.close-inner { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.close-inner h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 8px; }
.close-inner p { color: #d5e2ef; margin: 0; max-width: 640px; }
.site-footer {
  background: #071018;
  color: var(--ink);
  padding: 36px 0 28px;
  border-top: 1px solid var(--line);
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px; }
.site-footer strong { display: block; font-size: 18px; color: #fff; margin-bottom: 6px; }
.site-footer p, .site-footer a { color: var(--muted); margin: 0; }
.site-footer a:hover { color: var(--accent); }
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 35;
  background: rgba(7,16,24,.94); border-top: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.dock-inner { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--ink); }
.dock strong { font-size: 14px; }
.dock span { color: var(--muted); font-size: 13px; display: block; }
@media (max-width: 1024px) {
  .hero-split, .window-grid, .metric-grid, .compare, .news-layout, .close-inner, .foot-grid { grid-template-columns: 1fr; }
  .flow-line { grid-template-columns: 1fr 1fr; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .scene-row { grid-template-columns: 140px 1fr; }
  .scene-row .btn { display: none; }
}
@media (max-width: 768px) {
  .nav-burger { display: flex; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0; right: 0;
    margin: 0;
    background: #071018;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 18px;
    border-bottom: 1px solid var(--line);
  }
  .nav-toggle:checked ~ .nav { display: flex; }
  .dropdown { position: static; display: grid; background: transparent; border: 0; box-shadow: none; padding: 0 0 0 10px; }
  .section-head, .dock-inner { align-items: start; flex-direction: column; }
  section { padding: 56px 0; }
}
@media (max-width: 520px) {
  .flow-line, .metric-grid, .split-board, .scene-row { grid-template-columns: 1fr; }
  .scene-row img { height: 160px; }
  .hero { padding-top: 32px; }
  .logo small { display: none; }
  .dock .btn { width: 100%; }
}