/* roulang page: index */
:root {
  --bg: #F3EFE6;
  --bg-elev: #FFFBF4;
  --ink: #141A17;
  --ink-soft: #5E6762;
  --line: #D8D1C4;
  --primary: #12544C;
  --primary-deep: #0C3C37;
  --accent: #2FBFB0;
  --hi: #D7F07A;
  --dark: #101614;
  --on-dark: #E7EEEA;
  --on-dark-soft: #B7C4BE;
  --radius: 4px;
  --shadow: 0 1px 0 rgba(20, 26, 23, .08);
  --shadow-soft: 0 8px 18px rgba(16, 22, 20, .06);
  --container: 1240px;
  --gutter: 28px;
  --header-top: 38px;
  --header-main: 58px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(.22, .8, .28, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  text-rendering: optimizeLegibility;
}
body.nav-lock { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease); }
a:hover { color: var(--primary-deep); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: 0; background: none; }
h1, h2, h3, .display {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.22;
  color: var(--ink);
  margin: 0 0 .6em;
}
p { margin: 0 0 1em; max-width: 42em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.skip {
  position: absolute; left: -999px; top: 8px;
}
.skip:focus { left: 8px; z-index: 80; background: var(--bg-elev); padding: 8px 12px; }
.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .18em; text-transform: none;
  color: var(--primary); font-weight: 500; margin-bottom: 12px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 1px; background: var(--primary);
}
.section {
  padding: 88px 0;
  scroll-margin-top: 108px;
  position: relative;
}
.section-alt { background: var(--bg-elev); }
.section-head { margin-bottom: 36px; max-width: 720px; }
.section-head h2 {
  font-size: clamp(26px, 3vw, 40px);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 16px;
}
.section-head h2 .idx {
  font-family: var(--sans);
  font-size: 13px; font-weight: 500; letter-spacing: .12em;
  color: var(--ink-soft); border-bottom: 1px solid var(--primary); padding-bottom: 4px;
}
.lead { color: var(--ink-soft); font-size: 16px; line-height: 1.8; max-width: 40em; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid var(--primary);
  background: var(--primary); color: #F7FFF9;
  font-size: 14px; font-weight: 500; letter-spacing: .04em;
  position: relative; transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn:hover {
  background: var(--primary-deep); color: #fff; transform: translateY(-2px);
}
.btn:hover::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: 7px; height: 2px; background: var(--hi);
}
.btn:active { transform: translateY(0); }
.btn-ghost {
  background: transparent; color: var(--primary);
}
.btn-ghost:hover { background: rgba(47, 191, 176, .08); color: var(--primary-deep); }
.btn-ghost:hover::after { display: none; }
.btn-light { background: var(--bg-elev); color: var(--primary); border-color: var(--line); }
.btn-light:hover { background: #fff; }
.btn-on-dark {
  background: var(--accent); border-color: var(--accent); color: var(--dark);
}
.btn-on-dark:hover { background: var(--hi); border-color: var(--hi); color: var(--dark); }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); background: var(--bg-elev);
  padding: 6px 10px; font-size: 12px; color: var(--ink-soft); border-radius: 2px;
}
.badge i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block;
}

.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-top, .nav-main {
  display: flex; align-items: center; gap: 16px;
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}
.nav-top {
  height: var(--header-top);
  justify-content: space-between;
  font-size: 12px; color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}
.logo {
  display: flex; align-items: center; gap: 10px; color: var(--ink); min-height: 44px;
}
.logo-mark {
  width: 28px; height: 28px; border: 1px solid var(--primary);
  display: grid; place-items: center;
  font-family: var(--serif); font-size: 12px; color: var(--primary); letter-spacing: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text b { font-family: var(--serif); font-size: 16px; font-weight: 700; letter-spacing: -.04em; }
.logo-text span { font-size: 10px; letter-spacing: .22em; color: var(--ink-soft); }
.hotline { display: flex; align-items: center; gap: 18px; }
.hotline strong { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.top-actions { display: flex; align-items: center; gap: 14px; }
.top-actions a.mail { color: var(--ink-soft); }
.top-actions a.mail:hover { color: var(--primary); }
.btn-xs { min-height: 32px; padding: 0 12px; font-size: 12px; }
.nav-main { height: var(--header-main); justify-content: space-between; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
  position: relative; color: var(--ink); font-size: 14px; padding: 10px 12px; min-height: 44px;
  display: inline-flex; align-items: center;
}
.nav-links a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 8px; height: 1px;
  background: var(--primary); transform: scaleX(0); transform-origin: left; transition: transform .28s var(--ease);
}
.nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line);
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span { display: block; width: 16px; height: 1px; background: var(--ink); }
.drawer {
  position: fixed; inset: 0 0 0 auto; width: min(88vw, 360px);
  background: var(--bg-elev); border-left: 1px solid var(--line);
  transform: translateX(100%); transition: transform .35s var(--ease);
  z-index: 50; padding: 28px 22px; display: flex; flex-direction: column; gap: 18px;
}
.drawer.is-open { transform: translateX(0); }
.drawer-overlay {
  position: fixed; inset: 0; background: rgba(16, 22, 20, .35); z-index: 45;
  opacity: 0; pointer-events: none; transition: opacity .3s var(--ease);
}
.drawer-overlay.is-open { opacity: 1; pointer-events: auto; }
.drawer a {
  font-family: var(--serif); font-size: 26px; color: var(--ink); min-height: 48px; display: flex; align-items: center;
  border-bottom: 1px solid var(--line);
}
.drawer .drawer-meta { font-size: 14px; color: var(--ink-soft); display: grid; gap: 8px; }

.hero { padding: 28px 0 64px; }
.hero-bento {
  display: grid;
  grid-template-columns: 1.55fr .85fr;
  grid-template-rows: minmax(210px, 1fr) minmax(210px, 1fr) auto;
  gap: 16px;
  min-height: 640px;
}
.hero-main {
  grid-column: 1; grid-row: 1 / 3;
  position: relative; overflow: hidden; border: 1px solid var(--line); background: #d9d3c6;
  min-height: 520px;
}
.slides { position: absolute; inset: 0; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .7s var(--ease); }
.slide.is-active { opacity: 1; z-index: 1; }
.slide img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.04); animation: kenburns 14s linear forwards;
}
.slide-copy {
  position: absolute; left: 24px; bottom: 24px; z-index: 2;
  width: min(92%, 560px);
  background: var(--bg-elev); border: 1px solid var(--line);
  padding: 28px 28px 24px; box-shadow: var(--shadow);
}
.slide-copy h1, .slide-copy h2 {
  font-size: clamp(28px, 3.4vw, 46px); margin-bottom: 12px;
}
.hero-ctrl {
  position: absolute; right: 16px; top: 16px; z-index: 3; display: flex; gap: 8px;
}
.hero-ctrl button {
  width: 44px; height: 44px; border: 1px solid var(--line); background: var(--bg-elev);
  color: var(--ink); font-size: 18px; line-height: 1;
}
.hero-ctrl button:hover { border-color: var(--primary); transform: translateY(-2px); }
.hero-progress {
  position: absolute; left: 24px; right: 120px; bottom: 10px; z-index: 3; height: 2px; background: rgba(20,26,23,.18);
}
.hero-progress b {
  display: block; height: 100%; width: 0; background: var(--hi); transform-origin: left;
}
.hero-mini {
  border: 1px solid var(--line); background: var(--bg-elev); padding: 22px;
  display: flex; flex-direction: column; justify-content: space-between; min-height: 210px;
}
.hero-mini .k { font-size: 12px; letter-spacing: .14em; color: var(--ink-soft); }
.hero-mini .v {
  font-family: var(--serif); font-size: clamp(28px, 3vw, 40px); letter-spacing: -.04em; margin: 12px 0 8px;
}
.hero-mini p { font-size: 14px; color: var(--ink-soft); }
.hero-cta {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border: 1px solid var(--line); background: var(--primary); color: var(--on-dark);
  padding: 14px 18px;
}
.hero-cta p { color: var(--on-dark-soft); max-width: none; font-size: 14px; }
.hero-cta .cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.dash {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; align-items: stretch;
}
.dash-main {
  grid-column: span 5; border: 1px solid var(--line); background: var(--bg-elev);
  padding: 32px 28px; position: relative; overflow: hidden;
}
.dash-main .big {
  font-family: var(--serif); font-size: clamp(52px, 8vw, 92px); line-height: .9;
  letter-spacing: -.06em; font-variant-numeric: tabular-nums;
}
.dash-main .unit { font-size: 22px; vertical-align: super; color: var(--primary); margin-left: 6px; }
.dash-main .label { margin-top: 18px; color: var(--ink-soft); font-size: 14px; }
.mole {
  position: absolute; right: -20px; bottom: -30px; opacity: .18; pointer-events: none;
}
.dash-side {
  grid-column: span 7; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.metric {
  border: 1px solid var(--line); background: var(--bg); padding: 18px 16px;
  display: flex; flex-direction: column; gap: 8px; min-height: 128px;
}
.metric b {
  font-family: var(--serif); font-size: 28px; letter-spacing: -.04em; font-variant-numeric: tabular-nums;
}
.metric span { font-size: 13px; color: var(--ink-soft); }
.metric em { font-style: normal; font-size: 12px; color: var(--primary); }

.intro-grid {
  display: grid; grid-template-columns: 7fr 5fr; gap: 36px; align-items: center;
}
.cover {
  position: relative; overflow: hidden; border: 1px solid var(--line); min-height: 420px;
}
.cover img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.params { margin-top: 22px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.params div {
  display: grid; grid-template-columns: 120px 1fr; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.params dt { color: var(--ink-soft); }
.params dd { margin: 0; }

.matrix {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.matrix-card {
  border: 1px solid var(--line); background: var(--bg-elev); padding: 22px 20px 18px;
  min-height: 210px; display: flex; flex-direction: column; gap: 10px;
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}
.matrix-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.matrix-card .no { font-size: 12px; letter-spacing: .16em; color: var(--ink-soft); }
.matrix-card h3 { font-size: 22px; margin: 0; }
.matrix-card p { font-size: 14px; color: var(--ink-soft); }
.matrix-card .go { margin-top: auto; color: var(--primary); font-size: 13px; }
.matrix-card .go::after { content: " →"; }

.systems {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 16px;
}
.sys-card { border: 1px solid var(--line); background: var(--bg-elev); display: flex; flex-direction: column; min-height: 100%; }
.sys-card img { width: 100%; height: 210px; object-fit: cover; }
.sys-card .body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.sys-card h3 { font-size: 22px; margin: 0; }
.spec { display: grid; gap: 0; font-size: 13px; }
.spec li {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 8px 0; border-bottom: 1px solid var(--line); list-style: none;
}
.spec span { color: var(--ink-soft); }
.sys-side img { height: 140px; }
.sys-side .body p { font-size: 14px; color: var(--ink-soft); }

.scene-track {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
}
.scene {
  border: 1px solid var(--line); background: var(--bg-elev); min-width: 0;
}
.scene img { width: 100%; height: 150px; object-fit: cover; }
.scene .pad { padding: 14px; }
.scene h3 { font-size: 16px; margin: 0 0 6px; }
.scene p { font-size: 13px; color: var(--ink-soft); }

.compare-wrap { overflow: auto; border: 1px solid var(--line); background: var(--bg-elev); }
table.compare { width: 100%; border-collapse: collapse; min-width: 720px; }
.compare th, .compare td {
  padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px;
}
.compare thead th {
  font-family: var(--serif); font-size: 20px; font-weight: 700; background: var(--bg);
}
.compare td.k { color: var(--ink-soft); width: 18%; }
.compare .note { padding: 16px 18px; font-size: 14px; color: var(--ink-soft); }
.mobile-compare { display: none; }

.dark-block {
  background: var(--dark); color: var(--on-dark); padding: 88px 0; overflow: hidden;
}
.dark-block h2, .dark-block p, .dark-block h3 { color: var(--on-dark); }
.dark-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.quote {
  font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); line-height: 1.28; margin: 0;
}
.quote-line {
  width: 0; height: 1px; background: var(--accent); margin: 22px 0 18px;
  animation: none;
}
.dark-block.is-in .quote-line { animation: growline .7s var(--ease) forwards; }
.slices { display: grid; gap: 12px; }
.slice {
  border: 1px solid rgba(231, 238, 234, .16); padding: 16px 18px;
}
.slice b { display: block; font-size: 14px; margin-bottom: 6px; }
.slice span { font-size: 13px; color: var(--on-dark-soft); }

.timeline { position: relative; display: grid; gap: 0; }
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: var(--line);
}
.tl-item {
  width: min(46%, 520px); padding: 8px 0 36px; position: relative;
}
.tl-item:nth-child(odd) { margin-right: auto; text-align: right; padding-right: 28px; }
.tl-item:nth-child(even) { margin-left: auto; text-align: left; padding-left: 28px; }
.tl-item::after {
  content: ""; position: absolute; top: 18px; width: 8px; height: 8px; background: var(--primary);
  border: 1px solid var(--hi);
}
.tl-item:nth-child(odd)::after { right: -4px; }
.tl-item:nth-child(even)::after { left: -4px; }
.tl-item h3 { font-size: 22px; }
.tl-item p { font-size: 14px; color: var(--ink-soft); margin-left: auto; }

.stories {
  display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px;
}
.story { border: 1px solid var(--line); background: var(--bg-elev); }
.story img { width: 100%; height: 280px; object-fit: cover; }
.story .pad { padding: 22px; }
.story h3 { font-size: 24px; }
.kv { display: grid; gap: 6px; margin: 12px 0; font-size: 14px; }
.kv div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); padding: 6px 0; }
.story-s { display: flex; flex-direction: column; justify-content: space-between; min-height: 100%; }
.story-s blockquote {
  font-family: var(--serif); font-size: 24px; line-height: 1.45; margin: 0 0 20px;
}

.statbar {
  display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: var(--bg-elev);
}
.statbar div {
  padding: 28px 20px; border-right: 1px solid var(--line);
  transform: translateY(8px); opacity: 0; transition: transform .45s var(--ease), opacity .45s var(--ease);
}
.statbar.is-in div { transform: none; opacity: 1; }
.statbar div:nth-child(2) { transition-delay: .08s; }
.statbar div:nth-child(3) { transition-delay: .16s; }
.statbar div:nth-child(4) { transition-delay: .24s; }
.statbar div:last-child { border-right: 0; }
.statbar b {
  display: block; font-family: var(--serif); font-size: 36px; letter-spacing: -.04em; font-variant-numeric: tabular-nums;
}
.statbar span { font-size: 13px; color: var(--ink-soft); }

.reviews {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px;
}
.review {
  border: 1px solid var(--line); background: var(--bg-elev); padding: 28px;
}
.review:nth-child(3) { grid-column: 1 / -1; max-width: 78%; margin-left: auto; }
.review q { font-family: var(--serif); font-size: 22px; line-height: 1.5; display: block; margin-bottom: 16px; }
.review cite { font-style: normal; font-size: 13px; color: var(--ink-soft); }

.news-list { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.news-item {
  display: grid; grid-template-columns: 120px 1fr; gap: 24px;
  padding: 22px 0; border-bottom: 1px solid var(--line);
}
.news-item time {
  font-variant-numeric: tabular-nums; color: var(--ink-soft); font-size: 13px; padding-top: 6px;
}
.news-item h3 { font-size: 22px; margin: 0 0 8px; }
.news-item p { font-size: 14px; color: var(--ink-soft); }
.news-more { margin-top: 18px; }

.assure { display: grid; gap: 0; border-top: 1px solid var(--line); }
.assure div {
  display: grid; grid-template-columns: 180px 1fr; gap: 24px;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.assure dt {
  font-size: 13px; letter-spacing: .12em; color: var(--primary); padding-top: 4px;
}
.assure dd { margin: 0; font-size: 15px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  min-height: 44px; padding: 8px 14px; border: 1px solid var(--line); background: var(--bg-elev);
  color: var(--ink); font-size: 14px; border-radius: 2px;
}
.chip:hover, .chip:focus-visible { border-color: var(--primary); transform: translateY(-2px); }

.faq-form { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-btn {
  width: 100%; text-align: left; min-height: 56px; padding: 14px 0 14px 14px;
  display: flex; justify-content: space-between; gap: 12px; color: var(--ink);
  font-size: 16px; font-weight: 500; position: relative;
}
.faq-btn::before {
  content: ""; position: absolute; left: 0; top: 16px; bottom: 16px; width: 0;
  background: var(--primary); transition: width .25s var(--ease);
}
.faq-item.is-open .faq-btn::before { width: 2px; }
.faq-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s var(--ease); }
.faq-item.is-open .faq-panel { grid-template-rows: 1fr; }
.faq-panel > div { overflow: hidden; }
.faq-panel p { padding: 0 0 16px 14px; font-size: 14px; color: var(--ink-soft); }

.form-box {
  background: var(--bg-elev); border: 1px solid var(--line); padding: 24px;
}
.form-box h3 { font-size: 26px; }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 13px; color: var(--ink-soft); }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); background: #fff; color: var(--ink);
  min-height: 44px; padding: 8px 10px; border-radius: 2px;
}
.field textarea { min-height: 110px; resize: vertical; }
.field.is-err input, .field.is-err select, .field.is-err textarea { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.err { color: var(--primary); font-size: 12px; }
.form-aside { font-size: 14px; color: var(--ink-soft); display: grid; gap: 8px; margin-top: 18px; }
.receipt {
  border: 1px solid var(--accent); background: rgba(47, 191, 176, .08);
  padding: 12px 14px; margin-bottom: 14px; font-size: 14px;
}

.site-footer {
  background: var(--dark); color: var(--on-dark); padding: 56px 0 28px; font-size: 14px;
}
.foot-grid { display: grid; grid-template-columns: 1.3fr .9fr .9fr 1fr; gap: 28px; }
.site-footer a { color: var(--on-dark-soft); }
.site-footer a:hover { color: var(--hi); }
.site-footer h3 { color: var(--on-dark); font-size: 16px; margin-bottom: 12px; }
.site-footer ul { list-style: none; display: grid; gap: 8px; }
.foot-brand p { color: var(--on-dark-soft); }
.copyright {
  margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(231,238,234,.12);
  color: var(--on-dark-soft); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12px;
}

@keyframes kenburns {
  from { transform: scale(1.02); }
  to { transform: scale(1.08); }
}
@keyframes growline { to { width: 120px; } }

@media (max-width: 1440px) {
  .dash-main .big { font-size: 76px; }
}
@media (max-width: 1024px) {
  .hotline, .top-actions .mail { display: none; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-top { justify-content: flex-start; }
  .nav-main { height: 56px; }
  .hero-bento { grid-template-columns: 1fr 1fr; min-height: 0; }
  .hero-main { min-height: 460px; }
  .dash-main, .dash-side { grid-column: span 12; }
  .intro-grid, .systems, .dark-grid, .stories, .reviews, .faq-form, .foot-grid {
    grid-template-columns: 1fr 1fr;
  }
  .systems { grid-template-columns: 1fr; }
  .scene-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .scene { flex: 0 0 68%; scroll-snap-align: start; }
  .timeline::before { left: 10px; }
  .tl-item, .tl-item:nth-child(odd), .tl-item:nth-child(even) {
    width: 100%; margin: 0; text-align: left; padding: 0 0 28px 28px;
  }
  .tl-item::after, .tl-item:nth-child(odd)::after, .tl-item:nth-child(even)::after { left: 6px; right: auto; }
  .review:nth-child(3) { max-width: none; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .matrix { grid-template-columns: 1fr 1fr; }
  .dash-side { grid-template-columns: 1fr 1fr; }
  .intro-grid, .dark-grid, .stories, .reviews, .faq-form, .foot-grid, .hero-bento, .statbar, .news-item, .assure div {
    grid-template-columns: 1fr;
  }
  .hero-main { grid-column: 1 / -1; grid-row: auto; }
  .hero-cta { grid-column: 1 / -1; }
  .statbar div { border-right: 0; border-bottom: 1px solid var(--line); }
  .news-item { gap: 8px; }
  .params div { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .container, .nav-top, .nav-main { width: min(100% - 28px, var(--container)); }
  .matrix, .dash-side { grid-template-columns: 1fr; }
  .dash-side { grid-template-columns: 1fr 1fr; }
  .hero-bento { grid-template-columns: 1fr; }
  .slide-copy { left: 12px; right: 12px; width: auto; bottom: 18px; padding: 18px; }
  .slide-copy .lead { display: none; }
  .hero-progress { display: none; }
  table.compare { display: none; }
  .mobile-compare { display: grid; gap: 12px; }
  .mobile-compare article { border: 1px solid var(--line); background: var(--bg-elev); padding: 16px; }
  .mobile-compare h3 { font-size: 18px; }
  .scene { flex-basis: 82%; }
  .btn { width: auto; }
  .copyright { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .slide img { transform: none; }
}

/* roulang page: index */
:root {
      --bg: #F3EFE6;
      --bg-elev: #FFFBF4;
      --ink: #141A17;
      --ink-soft: #5E6762;
      --line: #D8D1C4;
      --primary: #12544C;
      --primary-deep: #0C3C37;
      --accent: #2FBFB0;
      --hi: #D7F07A;
      --dark: #101614;
      --on-dark: #E7EEEA;
      --on-dark-soft: #B7C4BE;
      --radius: 4px;
      --radius-sm: 2px;
      --shadow: 0 1px 0 rgba(20, 26, 23, 0.06);
      --shadow-soft: 0 8px 18px rgba(20, 26, 23, 0.06);
      --space: 28px;
      --gutter: 28px;
      --container: 1240px;
      --header-top: 42px;
      --header-main: 64px;
      --focus: 0 0 0 2px var(--bg-elev), 0 0 0 4px var(--accent);
      --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
      --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --ease: cubic-bezier(0.22, 1, 0.36, 1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--sans);
      font-size: 17px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--bg);
      text-rendering: optimizeLegibility;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--primary); text-decoration: none; transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease), transform 200ms var(--ease); }
    a:hover { color: var(--primary-deep); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, .display {
      font-family: var(--serif);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.22;
      color: var(--ink);
      margin: 0;
    }
    p { margin: 0 0 1em; max-width: 42em; }
    p:last-child { margin-bottom: 0; }
    ul, ol { margin: 0; padding: 0; }
    :focus-visible { outline: none; box-shadow: var(--focus); }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; letter-spacing: -0.03em; }
    .container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }
    .skip {
      position: absolute;
      left: -999px;
      top: 0;
    }
    .skip:focus { left: 16px; top: 16px; background: var(--hi); color: var(--ink); padding: 8px 12px; z-index: 80; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(243, 239, 230, 0.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: none;
    }
    .nav-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: var(--header-top);
      border-bottom: 1px solid var(--line);
      font-size: 12px;
      letter-spacing: 0.08em;
      color: var(--ink-soft);
    }
    .brand {
      display: flex;
      align-items: baseline;
      gap: 10px;
      color: var(--ink);
      letter-spacing: 0.12em;
      text-transform: none;
    }
    .brand-mark {
      width: 10px;
      height: 10px;
      border: 1px solid var(--primary);
      border-radius: 1px;
      background: linear-gradient(135deg, var(--accent) 0 50%, transparent 50%);
      flex: none;
    }
    .brand-name {
      font-family: var(--serif);
      font-size: 16px;
      font-weight: 700;
      letter-spacing: 0.18em;
    }
    .brand-lock { font-size: 11px; color: var(--ink-soft); letter-spacing: 0.22em; }
    .hotline { display: flex; gap: 18px; align-items: center; }
    .hotline b { color: var(--ink); font-weight: 600; letter-spacing: 0.04em; }
    .nav-tools { display: flex; align-items: center; gap: 14px; }
    .nav-tools a.mail { color: var(--ink-soft); }
    .nav-tools a.mail:hover { color: var(--primary); }
    .nav-main {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: var(--header-main);
      gap: 20px;
    }
    .nav-links {
      display: flex;
      align-items: stretch;
      gap: 4px;
      list-style: none;
      height: var(--header-main);
    }
    .nav-links a {
      position: relative;
      display: flex;
      align-items: center;
      height: 100%;
      padding: 0 14px;
      color: var(--ink);
      font-size: 14px;
      letter-spacing: 0.08em;
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 14px;
      height: 1px;
      background: var(--primary);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 280ms var(--ease);
    }
    .nav-links a:hover::after,
    .nav-links a.is-active::after { transform: scaleX(1); }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border: 1px solid var(--primary);
      border-radius: var(--radius-sm);
      background: var(--primary);
      color: #F7FFF9;
      font-size: 13px;
      letter-spacing: 0.12em;
      transition: background 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease), box-shadow 220ms var(--ease);
      box-shadow: inset 0 0 0 0 var(--hi);
    }
    .btn:hover {
      background: var(--primary-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: inset 0 -2px 0 var(--hi);
    }
    .btn:active { transform: translateY(0); }
    .btn-ghost {
      background: transparent;
      color: var(--primary);
    }
    .btn-ghost:hover {
      background: rgba(47, 191, 176, 0.08);
      color: var(--primary-deep);
      box-shadow: none;
    }
    .btn-on-dark {
      background: var(--accent);
      border-color: var(--accent);
      color: var(--dark);
    }
    .btn-on-dark:hover { background: var(--hi); border-color: var(--hi); color: var(--ink); }
    .btn-tiny {
      min-height: 32px;
      padding: 0 12px;
      font-size: 12px;
    }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      background: var(--bg-elev);
      border-radius: var(--radius-sm);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }
    .menu-toggle span {
      display: block;
      width: 18px;
      height: 1px;
      background: var(--ink);
    }
    .drawer {
      position: fixed;
      inset: 0 0 0 auto;
      width: min(86vw, 360px);
      background: var(--bg-elev);
      border-left: 1px solid var(--line);
      transform: translateX(100%);
      transition: transform 320ms var(--ease);
      z-index: 70;
      padding: 28px 22px;
      display: flex;
      flex-direction: column;
      gap: 22px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer a { color: var(--ink); font-family: var(--serif); font-size: 22px; }
    .drawer-tools { display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--ink-soft); }
    .overlay {
      position: fixed;
      inset: 0;
      background: rgba(16, 22, 20, 0.45);
      opacity: 0;
      pointer-events: none;
      transition: opacity 280ms var(--ease);
      z-index: 65;
    }
    .overlay.is-on { opacity: 1; pointer-events: auto; }
    body.is-locked { overflow: hidden; }
    main { overflow: clip; }
    .section {
      padding: 88px 0;
      position: relative;
    }
    .section-alt { background: var(--bg-elev); }
    .section-head {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 24px;
      align-items: end;
      margin-bottom: 40px;
    }
    .kicker {
      font-size: 12px;
      letter-spacing: 0.22em;
      color: var(--primary);
      border-bottom: 1px solid var(--primary);
      padding-bottom: 8px;
      width: max-content;
    }
    .section-head h2 {
      font-size: clamp(28px, 3.2vw, 40px);
      max-width: 16em;
    }
    .lede {
      margin-top: 14px;
      color: var(--ink-soft);
      max-width: 40em;
      font-size: 16px;
    }
    .hero {
      padding: 28px 0 12px;
    }
    .hero-bento {
      display: grid;
      grid-template-columns: 1.65fr 0.9fr;
      grid-template-rows: minmax(230px, 1fr) minmax(230px, 1fr) auto;
      gap: 14px;
      min-height: 640px;
    }
    .hero-main {
      grid-row: 1 / 3;
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      background: var(--dark);
      min-height: 520px;
    }
    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity 700ms ease-out;
      pointer-events: none;
    }
    .hero-slide.is-active { opacity: 1; pointer-events: auto; }
    .hero-slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transform: scale(1);
    }
    .hero-slide.is-active img { animation: kenburns 18s ease-out forwards; }
    .hero-slide::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(16,22,20,0.92) 0%, rgba(16,22,20,0.55) 42%, rgba(16,22,20,0.12) 72%);
    }
    .slide-copy {
      position: absolute;
      z-index: 2;
      left: 36px;
      right: 18%;
      bottom: 42px;
      color: var(--on-dark);
    }
    .eyebrow {
      display: inline-flex;
      gap: 10px;
      font-size: 12px;
      letter-spacing: 0.2em;
      color: var(--hi);
      margin-bottom: 14px;
    }
    .slide-copy h1, .slide-copy .display {
      font-size: clamp(32px, 4.4vw, 56px);
      color: var(--on-dark);
      max-width: 12em;
      margin-bottom: 14px;
    }
    .slide-copy .sub {
      font-size: 16px;
      color: var(--on-dark-soft);
      max-width: 28em;
    }
    .hero-nav {
      position: absolute;
      z-index: 3;
      top: 18px;
      right: 18px;
      display: flex;
      gap: 8px;
    }
    .hero-arrow {
      width: 44px;
      height: 44px;
      border: 1px solid rgba(231,238,234,0.35);
      background: transparent;
      color: var(--on-dark);
      border-radius: var(--radius-sm);
    }
    .hero-arrow:hover { border-color: var(--hi); color: var(--hi); }
    .hero-progress {
      position: absolute;
      z-index: 3;
      left: 36px;
      right: 36px;
      bottom: 14px;
      height: 2px;
      background: rgba(231,238,234,0.2);
    }
    .hero-progress > span {
      display: block;
      height: 100%;
      width: 0;
      background: var(--hi);
    }
    .hero-progress > span.is-run { animation: bar 7s linear forwards; }
    .hero-mini {
      border: 1px solid var(--line);
      background: var(--bg-elev);
      overflow: hidden;
      display: grid;
      grid-template-rows: 1fr auto;
      min-height: 230px;
    }
    .hero-mini img { width: 100%; height: 140px; object-fit: cover; }
    .hero-mini .mini-body { padding: 16px 18px 18px; }
    .hero-mini h3 { font-size: 18px; margin-bottom: 6px; }
    .hero-mini p { font-size: 14px; color: var(--ink-soft); }
    .hero-cta-bar {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: 1.6fr auto;
      gap: 22px;
      align-items: center;
      padding: 22px 24px;
      background: var(--bg-elev);
      border: 1px solid var(--line);
    }
    .hero-cta-bar p { font-size: 15px; color: var(--ink-soft); max-width: 58em; }
    .hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
    .metrics { padding-top: 56px; }
    .dash {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 18px;
      border: 1px solid var(--line);
      background: var(--bg-elev);
      padding: 28px;
      position: relative;
    }
    .dash-main {
      grid-column: span 5;
      border-right: 1px solid var(--line);
      padding-right: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 280px;
    }
    .dash-main .label { font-size: 13px; letter-spacing: 0.16em; color: var(--primary); }
    .dash-number {
      font-size: clamp(56px, 8vw, 92px);
      font-family: var(--serif);
      line-height: 0.92;
      letter-spacing: -0.04em;
    }
    .dash-number sup { font-size: 0.28em; letter-spacing: 0.08em; color: var(--ink-soft); top: -1.6em; }
    .dash-note { color: var(--ink-soft); font-size: 14px; }
    .dash-side {
      grid-column: span 7;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 0;
    }
    .metric-card {
      padding: 16px 18px 20px;
      border-bottom: 1px solid var(--line);
      border-right: 1px solid var(--line);
    }
    .metric-card:nth-child(3n) { border-right: 0; }
    .metric-card:nth-last-child(-n+3) { border-bottom: 0; }
    .metric-card .k { font-size: 12px; color: var(--ink-soft); letter-spacing: 0.08em; }
    .metric-card .v {
      font-size: 28px;
      font-family: var(--serif);
      margin: 10px 0 4px;
    }
    .metric-card .v sup { font-size: 0.4em; color: var(--primary); }
    .metric-card .u { font-size: 12px; color: var(--ink-soft); }
    .molecule {
      position: absolute;
      right: 18px;
      bottom: 16px;
      opacity: 0.18;
      pointer-events: none;
    }
    .split {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 48px;
      align-items: center;
    }
    .cover-frame {
      position: relative;
      border: 1px solid var(--line);
      overflow: hidden;
    }
    .cover-frame img { width: 100%; height: 520px; object-fit: cover; }
    .badge {
      position: absolute;
      left: 16px;
      bottom: 16px;
      background: var(--bg-elev);
      border: 1px solid var(--line);
      padding: 8px 12px;
      font-size: 12px;
      letter-spacing: 0.12em;
      color: var(--primary);
    }
    .spec-bar {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      margin-top: 22px;
      border-top: 1px solid var(--line);
    }
    .spec-bar div {
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
    }
    .spec-bar dt { font-size: 12px; color: var(--ink-soft); letter-spacing: 0.08em; }
    .spec-bar dd { margin: 0; font-family: var(--serif); font-size: 18px; }
    .matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .mx {
      border: 1px solid var(--line);
      background: var(--bg);
      padding: 22px 22px 20px;
      min-height: 210px;
      display: flex;
      flex-direction: column;
      transition: transform 240ms var(--ease), border-color 240ms var(--ease);
    }
    .mx:hover { transform: translateY(-2px); border-color: var(--primary); }
    .mx .no { font-size: 12px; letter-spacing: 0.2em; color: var(--accent); }
    .mx h3 { font-size: 22px; margin: 18px 0 10px; }
    .mx p { font-size: 14px; color: var(--ink-soft); flex: 1; }
    .mx .go {
      margin-top: 16px;
      font-size: 12px;
      letter-spacing: 0.16em;
      color: var(--primary);
    }
    .mx .go::after { content: " →"; }
    .systems {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 14px;
    }
    .sys {
      border: 1px solid var(--line);
      background: var(--bg-elev);
      display: flex;
      flex-direction: column;
      min-height: 100%;
    }
    .sys img { width: 100%; height: 220px; object-fit: cover; }
    .sys-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .sys h3 { font-size: 24px; }
    .kv { display: grid; gap: 0; font-size: 14px; }
    .kv div {
      display: grid;
      grid-template-columns: 7em 1fr;
      gap: 10px;
      padding: 8px 0;
      border-bottom: 1px solid var(--line);
    }
    .kv dt { color: var(--ink-soft); }
    .kv dd { margin: 0; }
    .sys.side img { height: 140px; }
    .sys.side h3 { font-size: 20px; }
    .sys.side p { font-size: 14px; color: var(--ink-soft); }
    .track {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: calc((100% - 56px) / 5);
      gap: 14px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 8px;
    }
    .scene {
      scroll-snap-align: start;
      border: 1px solid var(--line);
      background: var(--bg-elev);
      min-width: 0;
    }
    .scene img { width: 100%; height: 150px; object-fit: cover; }
    .scene-body { padding: 14px 14px 16px; }
    .scene h3 { font-size: 18px; margin-bottom: 6px; }
    .scene p { font-size: 13px; color: var(--ink-soft); }
    .compare-wrap { overflow: auto; border: 1px solid var(--line); background: var(--bg-elev); }
    table.compare {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }
    .compare th, .compare td {
      text-align: left;
      padding: 16px 20px;
      border-bottom: 1px solid var(--line);
      vertical-align: top;
    }
    .compare thead th {
      font-size: 13px;
      letter-spacing: 0.14em;
      color: var(--primary);
      background: #EFEADF;
    }
    .compare td.num, .compare th.num { font-variant-numeric: tabular-nums; }
    .compare tbody th { font-family: var(--serif); font-size: 18px; width: 22%; }
    .verdict {
      margin-top: 16px;
      font-size: 15px;
      color: var(--ink-soft);
    }
    .dark-band {
      background: var(--dark);
      color: var(--on-dark);
      padding: 96px 0;
      position: relative;
      overflow: hidden;
    }
    .dark-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url("/assets/images/818af5544375ba42.jpg") center/cover no-repeat;
      opacity: 0.18;
    }
    .dark-grid {
      position: relative;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .quote {
      font-family: var(--serif);
      font-size: clamp(28px, 3.6vw, 44px);
      line-height: 1.28;
      color: var(--on-dark);
    }
    .quote-line {
      width: 0;
      height: 1px;
      background: var(--accent);
      margin: 22px 0;
      animation: grow 900ms var(--ease) forwards;
    }
    .slices { display: grid; gap: 14px; }
    .slice {
      border: 1px solid rgba(216,209,196,0.18);
      padding: 16px 18px;
      color: var(--on-dark-soft);
    }
    .slice b { display: block; color: var(--on-dark); font-family: var(--serif); font-size: 18px; margin-bottom: 6px; }
    .timeline { position: relative; }
    .timeline::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 1px;
      background: var(--line);
    }
    .node {
      width: min(46%, 520px);
      border: 1px solid var(--line);
      background: var(--bg-elev);
      padding: 22px;
      position: relative;
      margin-bottom: 22px;
    }
    .node:nth-child(odd) { margin-left: 0; }
    .node:nth-child(even) { margin-left: auto; }
    .node::before {
      content: "";
      position: absolute;
      top: 28px;
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 1px;
    }
    .node:nth-child(odd)::before { right: -calc(4px); left: auto; transform: translateX(50%); right: -31px; }
    .node:nth-child(even)::before { left: -31px; }
    .node .when { font-size: 12px; letter-spacing: 0.16em; color: var(--primary); }
    .node h3 { font-size: 22px; margin: 8px 0; }
    .node p { font-size: 14px; color: var(--ink-soft); }
    .stories {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr;
      gap: 16px;
    }
    .story {
      border: 1px solid var(--line);
      background: var(--bg);
      overflow: hidden;
    }
    .story img { width: 100%; height: 320px; object-fit: cover; }
    .story-body { padding: 22px; }
    .story h3 { font-size: 26px; margin-bottom: 10px; }
    .story p { font-size: 15px; color: var(--ink-soft); }
    .story.small { display: flex; flex-direction: column; justify-content: flex-end; background: var(--primary); color: var(--on-dark); }
    .story.small img { height: 180px; opacity: 0.85; }
    .story.small blockquote {
      font-family: var(--serif);
      font-size: 22px;
      line-height: 1.45;
      margin: 0 0 12px;
      color: var(--on-dark);
    }
    .story.small cite { font-style: normal; font-size: 13px; letter-spacing: 0.08em; color: var(--hi); }
    .statbar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border: 1px solid var(--line);
      background: var(--bg-elev);
    }
    .statbar div {
      padding: 28px 22px;
      border-right: 1px solid var(--line);
    }
    .statbar div:last-child { border-right: 0; }
    .statbar .n {
      font-family: var(--serif);
      font-size: 40px;
      line-height: 1;
    }
    .statbar .n sup { font-size: 0.35em; color: var(--primary); }
    .statbar .l { margin-top: 8px; font-size: 13px; color: var(--ink-soft); letter-spacing: 0.08em; }
    .statbar div.is-in { animation: rise 500ms var(--ease) both; }
    .reviews {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 14px;
    }
    .rev {
      border: 1px solid var(--line);
      padding: 28px;
      background: var(--bg-elev);
    }
    .rev:last-child { grid-column: 1 / -1; }
    .rev q {
      font-family: var(--serif);
      font-size: 22px;
      line-height: 1.5;
      quotes: "「" "」";
    }
    .rev footer { margin-top: 18px; font-size: 13px; color: var(--ink-soft); letter-spacing: 0.06em; }
    .news-list { display: grid; gap: 0; border-top: 1px solid var(--ink); }
    .news-item {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 24px;
      padding: 22px 0;
      border-bottom: 1px solid var(--line);
      align-items: start;
    }
    .news-item time {
      font-variant-numeric: tabular-nums;
      letter-spacing: 0.12em;
      color: var(--primary);
      font-size: 13px;
      padding-top: 8px;
    }
    .news-item h3 { font-size: 22px; margin-bottom: 8px; }
    .news-item p { font-size: 14px; color: var(--ink-soft); }
    .more-link {
      display: inline-flex;
      margin-top: 18px;
      font-size: 13px;
      letter-spacing: 0.14em;
      border-bottom: 1px solid var(--primary);
      padding-bottom: 2px;
    }
    .assure {
      display: grid;
      gap: 0;
      border-top: 1px solid var(--line);
    }
    .assure-item {
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 24px;
      padding: 20px 0;
      border-bottom: 1px solid var(--line);
    }
    .assure-item dt {
      font-family: var(--serif);
      font-size: 20px;
      color: var(--primary);
    }
    .assure-item dd { margin: 0; color: var(--ink-soft); font-size: 15px; }
    .chips { display: flex; flex-wrap: wrap; gap: 10px; }
    .chip {
      min-height: 44px;
      padding: 8px 14px;
      border: 1px solid var(--line);
      background: var(--bg-elev);
      color: var(--ink);
      font-size: 14px;
      border-radius: var(--radius-sm);
    }
    .chip:hover, .chip.is-on { border-color: var(--primary); color: var(--primary); }
    .faq-form { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .faq-list { display: grid; gap: 8px; }
    .faq-item { border: 1px solid var(--line); background: var(--bg-elev); }
    .faq-item.is-open { border-color: var(--primary); }
    .faq-q {
      width: 100%;
      text-align: left;
      background: transparent;
      border: 0;
      min-height: 56px;
      padding: 14px 18px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      font-size: 16px;
      color: var(--ink);
    }
    .faq-q span.plus { color: var(--primary); }
    .faq-a {
      height: 0;
      overflow: hidden;
      transition: height 320ms var(--ease);
    }
    .faq-a .inner {
      padding: 0 18px 18px;
      color: var(--ink-soft);
      font-size: 15px;
      border-left: 1px solid var(--accent);
      margin: 0 18px 16px;
    }
    .form-panel {
      background: var(--dark);
      color: var(--on-dark);
      padding: 28px;
      border: 1px solid #1d2a26;
    }
    .form-panel h2, .form-panel h3 { color: var(--on-dark); }
    .form-panel p { color: var(--on-dark-soft); }
    .field { display: grid; gap: 6px; margin-bottom: 14px; }
    .field label { font-size: 12px; letter-spacing: 0.14em; color: var(--on-dark-soft); }
    .field input, .field select, .field textarea {
      width: 100%;
      min-height: 44px;
      border: 1px solid #3a4a45;
      background: #161d1b;
      color: var(--on-dark);
      padding: 10px 12px;
      border-radius: var(--radius-sm);
    }
    .field textarea { min-height: 110px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(47,191,176,0.25);
      outline: none;
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .form-side { margin-top: 18px; font-size: 14px; color: var(--on-dark-soft); display: grid; gap: 6px; }
    .form-receipt {
      margin-bottom: 14px;
      padding: 12px 14px;
      border: 1px solid var(--accent);
      color: var(--hi);
      font-size: 14px;
    }
    .form-receipt.is-error { border-color: var(--hi); color: var(--on-dark); }
    .site-footer {
      background: #0E1412;
      color: var(--on-dark-soft);
      padding: 56px 0 28px;
      font-size: 14px;
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr 1.1fr;
      gap: 28px;
      margin-bottom: 36px;
    }
    .site-footer h3 {
      color: var(--on-dark);
      font-size: 16px;
      margin-bottom: 14px;
      letter-spacing: 0.12em;
    }
    .site-footer a { color: var(--on-dark-soft); }
    .site-footer a:hover { color: var(--hi); }
    .foot-brand .brand-name { color: var(--on-dark); display: inline-block; margin-bottom: 10px; }
    .foot-map, .foot-legal, .foot-contact { display: grid; gap: 8px; }
    .copy {
      border-top: 1px solid #24302c;
      padding-top: 16px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      font-size: 12px;
      letter-spacing: 0.06em;
    }
    @keyframes kenburns {
      from { transform: scale(1) translate3d(0,0,0); }
      to { transform: scale(1.07) translate3d(-1.5%, -1%, 0); }
    }
    @keyframes bar { from { width: 0; } to { width: 100%; } }
    @keyframes grow { from { width: 0; } to { width: 120px; } }
    @keyframes rise {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @media (max-width: 1440px) {
      :root { --container: 1200px; }
    }
    @media (max-width: 1024px) {
      .hotline span.hide-tab, .brand-lock { display: none; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .hero-bento {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 420px auto auto auto;
        min-height: 0;
      }
      .hero-main { grid-row: 1; grid-column: 1 / -1; min-height: 420px; }
      .slide-copy { left: 22px; right: 22px; bottom: 36px; }
      .section-head { grid-template-columns: 1fr; gap: 10px; }
      .split, .dark-grid, .stories, .faq-form, .reviews { grid-template-columns: 1fr; }
      .systems { grid-template-columns: 1fr; }
      .dash-main { grid-column: span 12; border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 18px; }
      .dash-side { grid-column: span 12; grid-template-columns: 1fr 1fr; }
      .metric-card:nth-child(3n) { border-right: 1px solid var(--line); }
      .metric-card:nth-child(2n) { border-right: 0; }
      .metric-card:nth-last-child(-n+2) { border-bottom: 0; }
      .timeline::before { left: 10px; }
      .node, .node:nth-child(even) { width: 100%; margin-left: 0; padding-left: 28px; }
      .node:nth-child(odd)::before, .node:nth-child(even)::before { left: 6px; right: auto; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .cover-frame img { height: 360px; }
    }
    @media (max-width: 768px) {
      .matrix { grid-template-columns: 1fr 1fr; }
      .statbar { grid-template-columns: 1fr 1fr; }
      .statbar div:nth-child(2) { border-right: 0; }
      .statbar div:nth-child(1), .statbar div:nth-child(2) { border-bottom: 1px solid var(--line); }
      .track { grid-auto-columns: 78%; }
      .hero-cta-bar { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .news-item { grid-template-columns: 1fr; gap: 6px; }
      .assure-item { grid-template-columns: 1fr; gap: 6px; }
      .copy { flex-direction: column; }
    }
    @media (max-width: 520px) {
      body { font-size: 16px; }
      .container { width: min(100% - 28px, var(--container)); }
      .nav-top { font-size: 11px; }
      .hotline { display: none; }
      .nav-tools .mail { display: none; }
      .hero-bento { grid-template-columns: 1fr; }
      .matrix { grid-template-columns: 1fr; }
      .dash { padding: 16px; }
      .dash-side { grid-template-columns: 1fr 1fr; }
      .metric-card { padding: 12px 10px; }
      .metric-card .v { font-size: 22px; }
      .dash-number { font-size: 48px; }
      .compare thead { display: none; }
      .compare, .compare tbody, .compare tr, .compare th, .compare td {
        display: block;
        width: 100%;
        min-width: 0;
      }
      .compare tr { padding: 12px 0; border-bottom: 1px solid var(--line); }
      .compare td { padding: 6px 16px; }
      .compare tbody th { padding: 10px 16px 4px; }
      .foot-grid { grid-template-columns: 1fr; }
      .section { padding: 64px 0; }
      .slide-copy h1, .slide-copy .display { font-size: 30px; }
      .story img { height: 220px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
    }