/* roulang page: index */
:root{
  --blue:#3E7D8F;
  --blue-deep:#2F6170;
  --blue-hover:#356C7C;
  --blue-soft:#E6F1F4;
  --blue-mid:#C5DCE3;
  --stone:#F4EFE6;
  --oak:#D4C4A8;
  --oak-deep:#B89A74;
  --nickel:#8A8D91;
  --rock:#5E666E;
  --ink:#2A2E33;
  --muted:#6A7178;
  --line:#E4E0D8;
  --bg:#FBF8F3;
  --bg-alt:#F2F5F7;
  --white:#FFFFFF;
  --dark:#2C3540;
  --dark-2:#24303A;
  --ok:#2F7D5A;
  --star:#C9863A;
  --danger:#B3544A;
  --radius-card:12px;
  --radius-btn:7px;
  --radius-img:8px;
  --shadow:0 8px 28px rgba(47,70,88,.08);
  --shadow-hover:0 14px 34px rgba(47,70,88,.14);
  --container:1220px;
  --nav-h:108px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{color:var(--blue);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--blue-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:2px;
}
button,input,select,textarea{font-family:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:min(100% - 40px,var(--container));margin:0 auto}
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,248,243,.94);backdrop-filter:blur(12px);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(62,125,143,.18)}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:36px;padding:6px 0;background:var(--blue-soft);color:var(--blue-deep);font-size:12px;letter-spacing:.02em
}
.topbar a{color:var(--blue-deep)}
.topbar a:hover{color:var(--blue)}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.topbar i{margin-right:6px;opacity:.85}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--blue-deep)}
.logo-mark{
  width:36px;height:36px;border:1.6px solid var(--blue);border-radius:8px;
  display:grid;place-items:center;color:var(--blue);background:var(--white)
}
.logo-mark svg{width:22px;height:22px;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:700;letter-spacing:.04em}
.logo-text span{font-size:12px;color:var(--muted);font-weight:400}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}
.nav-list a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;
  color:var(--ink);font-size:14px;font-weight:500
}
.nav-list a:hover{color:var(--blue)}
.nav-list a.is-active{color:var(--blue)}
.nav-list a.is-active::after,.nav-list a:hover::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;background:var(--blue)
}
.nav-list a:hover::after{opacity:.45}
.nav-list a.is-active::after{opacity:1}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  align-items:center;justify-content:center;color:var(--ink);background:var(--white)
}
.menu-toggle:hover,.menu-toggle:active{border-color:var(--blue);color:var(--blue)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 18px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;letter-spacing:.02em;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease
}
.btn i{font-size:13px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(62,125,143,.22)}
.btn-primary:hover{background:var(--blue-hover);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);background:var(--blue-deep)}
.btn-line{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn-line:hover{background:var(--blue-soft);transform:translateY(-2px);color:var(--blue-deep)}
.btn-line:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#f4efe6;border:1px solid rgba(244,239,230,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-2px)}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,360px);background:var(--white);z-index:100;
  transform:translateX(100%);transition:transform .28s ease;box-shadow:-12px 0 40px rgba(42,46,51,.16);
  display:flex;flex-direction:column;padding:18px 18px 28px
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line)}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;padding:0 8px;border-bottom:1px solid var(--line);
  color:var(--ink);font-size:16px;font-weight:500
}
.drawer nav a.is-active{color:var(--blue);box-shadow:inset 0 -2px 0 var(--blue)}
.drawer .btn{width:100%;margin-top:18px}
.backdrop{position:fixed;inset:0;background:rgba(28,36,42,.42);opacity:0;pointer-events:none;z-index:90;transition:opacity .28s ease}
.backdrop.is-open{opacity:1;pointer-events:auto}
body.menu-lock{overflow:hidden}
.hero{
  position:relative;min-height:82vh;display:flex;flex-direction:column;justify-content:center;
  padding:28px 0 72px;background:
    linear-gradient(180deg,rgba(251,248,243,.88) 0%,rgba(243,246,247,.92) 100%),
    url("/assets/images/7024ba1b0a2b8cd0.webp") center/cover no-repeat;
}
.hero-status{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:10px;
  padding:10px 16px;margin-bottom:28px;box-shadow:var(--shadow)
}
.status-chip{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--blue-deep)}
.status-chip i{color:var(--ok)}
.quota{display:flex;align-items:center;gap:12px;flex:1;min-width:220px}
.quota span{font-size:12px;color:var(--muted);white-space:nowrap}
.bar{flex:1;height:8px;background:var(--blue-soft);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;width:75%;background:linear-gradient(90deg,var(--blue),#5A9AAB);border-radius:99px}
.quota b{font-size:13px;color:var(--blue-deep);font-weight:600;white-space:nowrap}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,420px);gap:48px;align-items:center}
.hero-copy{max-width:640px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--blue);font-weight:600;margin-bottom:14px}
.kicker::before{content:"";width:18px;height:1px;background:var(--blue)}
.hero h1{font-size:40px;line-height:1.22;font-weight:700;letter-spacing:.04em;margin-bottom:14px}
.lead{font-size:16px;color:var(--ink);margin-bottom:18px}
.hero-slides{position:relative;min-height:72px;margin-bottom:22px}
.hero-slide{display:none;color:var(--muted);font-size:15px}
.hero-slide.is-on{display:block}
.hero-slide strong{display:block;color:var(--blue-deep);font-size:18px;font-weight:600;margin-bottom:4px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.slide-ctrl{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border:1px solid var(--line);border-radius:7px;background:var(--white);color:var(--ink)
}
.icon-btn:hover,.icon-btn:active{border-color:var(--blue);color:var(--blue)}
.dots{display:flex;gap:8px}
.dots button{width:8px;height:8px;border-radius:50%;background:var(--blue-mid)}
.dots button.is-on{width:22px;border-radius:99px;background:var(--blue)}
.hero-icons{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.icon-cell{
  background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px 12px 16px;
  text-align:center;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease
}
.icon-cell:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.icon-cell i{width:36px;height:36px;border-radius:8px;display:grid;place-items:center;margin:0 auto 10px;background:var(--blue-soft);color:var(--blue)}
.icon-cell b{display:block;font-size:14px;font-weight:600}
.icon-cell span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.section{padding:104px 0;background:var(--bg)}
.section-alt{background:var(--bg-alt)}
.section-stone{background:var(--stone)}
.section-head{max-width:720px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.03em;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--muted)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;min-height:28px;padding:4px 10px;
  border-radius:6px;background:var(--blue-soft);color:var(--blue-deep);font-size:12px;font-weight:500
}
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.intro-photo{position:relative}
.intro-photo img{width:100%;height:520px;object-fit:cover;box-shadow:var(--shadow)}
.intro-photo figcaption{position:absolute;left:16px;bottom:16px;background:rgba(44,53,64,.86);color:#fff;font-size:12px;padding:8px 12px;border-radius:6px}
.intro-copy h2{margin-bottom:14px}
.intro-copy p+p{margin-top:14px}
.intro-copy p{color:var(--ink)}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.service-card{
  background:var(--white);border-radius:var(--radius-card);padding:24px 22px 22px;box-shadow:var(--shadow);
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--blue-mid)}
.service-card.wide{grid-column:span 2;display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
.service-ico{width:44px;height:44px;border-radius:10px;background:var(--stone);color:var(--blue);display:grid;place-items:center;font-size:18px}
.service-card h3{font-size:18px;font-weight:600;margin:12px 0 8px}
.service-card.wide h3{margin-top:0}
.service-card p{font-size:14px;color:var(--muted);min-height:72px}
.service-card a{display:inline-flex;margin-top:10px;font-size:13px;font-weight:600}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.adv-card{
  background:var(--white);border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow);
  border-top:3px solid transparent;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-top-color:var(--blue)}
.adv-card i{color:var(--blue);font-size:22px;margin-bottom:12px}
.adv-card h3{font-size:18px;margin-bottom:8px;font-weight:600}
.adv-card p{font-size:14px;color:var(--muted)}
.product-stage{display:grid;grid-template-columns:1fr 1.16fr 1fr;gap:18px;align-items:stretch}
.product-card{
  background:var(--white);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.product-card img{width:100%;height:240px;object-fit:cover;border-radius:0}
.product-card.is-feature img{height:300px}
.product-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-card h3{font-size:20px;font-weight:600}
.product-card p{font-size:14px;color:var(--muted);flex:1}
.rank{margin-top:28px;display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start}
.rank-board{background:var(--white);border-radius:12px;box-shadow:var(--shadow);padding:18px 18px 10px}
.rank-board h3{font-size:16px;margin-bottom:10px}
.rank-board li{display:flex;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.rank-board b{color:var(--blue);font-variant-numeric:tabular-nums}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--white);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.compare-col{padding:18px 20px}
.compare-col:first-child{background:var(--blue-soft)}
.compare-col h3{font-size:16px;margin-bottom:10px}
.compare-col li{position:relative;padding:8px 0 8px 18px;font-size:14px;color:var(--ink);border-bottom:1px dashed var(--line)}
.compare-col li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue);position:absolute;left:0;top:16px}
.compare-col.plain li::before{background:var(--nickel)}
.spec-bar{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.spec-item{
  background:var(--white);border-radius:12px;padding:22px 16px;text-align:center;box-shadow:var(--shadow)
}
.spec-item b{display:block;font-size:28px;color:var(--blue);font-weight:700;letter-spacing:.02em;line-height:1.2}
.spec-item span{display:block;font-size:12px;color:var(--muted);margin-top:6px}
.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
.timeline::before{
  content:"";position:absolute;left:8%;right:8%;top:28px;height:2px;background:var(--blue-mid)
}
.step{position:relative;padding:0 10px;text-align:center}
.step .num{
  width:56px;height:56px;border-radius:50%;margin:0 auto 14px;background:var(--white);border:2px solid var(--blue);
  display:grid;place-items:center;font-weight:700;color:var(--blue);position:relative;z-index:1;box-shadow:var(--shadow)
}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}
.step time{display:block;font-size:12px;color:var(--blue);margin-top:6px;font-weight:600}
.idea{
  padding:0;background:var(--dark);color:#EDE8DF
}
.idea-grid{display:grid;grid-template-columns:1.15fr .85fr;min-height:560px}
.idea-photo{background:url("/assets/images/8262916d57962d49.webp") center/cover no-repeat;min-height:420px;position:relative}
.idea-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(44,53,64,.05),rgba(44,53,64,.35))}
.idea-copy{padding:72px 56px;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(180deg,#2C3540,#24303A)}
.idea-copy h2{color:#fff;font-size:32px;margin-bottom:16px}
.idea-copy p{color:#D9D3C8;margin-bottom:14px;max-width:460px}
.idea-copy .btn{align-self:flex-start;margin-top:10px}
.case-wall{
  display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:160px;gap:12px
}
.case-item{position:relative;overflow:hidden;border-radius:12px;cursor:pointer;grid-column:span 3;grid-row:span 2}
.case-item img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease}
.case-item:hover img{transform:scale(1.05)}
.case-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 14px 12px;
  background:linear-gradient(180deg,transparent,rgba(28,36,42,.78));color:#fff;font-size:14px;font-weight:600
}
.case-item.lg{grid-column:span 6;grid-row:span 3}
.case-item.wide{grid-column:span 6;grid-row:span 2}
.case-item.tall{grid-column:span 3;grid-row:span 3}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tag{
  min-height:36px;padding:6px 12px;border-radius:7px;border:1px solid var(--line);background:var(--white);
  color:var(--ink);font-size:13px
}
.tag:hover,.tag:active,.tag.is-on{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.scene-band{display:grid;grid-template-columns:.9fr 1.1fr;min-height:280px;margin-bottom:16px;border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.scene-band:nth-child(even){grid-template-columns:1.1fr .9fr}
.scene-band:nth-child(even) .scene-copy{order:2}
.scene-band:nth-child(even) .scene-pic{order:1}
.scene-pic{min-height:240px;background-size:cover;background-position:center}
.scene-copy{background:var(--white);padding:36px 32px;display:flex;flex-direction:column;justify-content:center}
.scene-copy h3{font-size:24px;margin-bottom:10px}
.scene-copy p{font-size:15px;color:var(--muted);margin-bottom:14px}
.story-list{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px}
.story-card{background:var(--white);border-radius:12px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.story-card:first-child{display:grid;grid-template-columns:1fr 1fr}
.story-card:first-child img{height:100%;object-fit:cover;border-radius:0}
.story-card img{height:180px;width:100%;object-fit:cover;border-radius:0}
.quote{padding:22px}
.quote i{color:var(--oak-deep);font-size:22px}
.quote h3{font-size:18px;margin:8px 0}
.quote p{font-size:14px;color:var(--muted)}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--blue-soft);border-radius:14px;overflow:hidden}
.stat-item{padding:36px 20px;text-align:center;border-right:1px solid rgba(62,125,143,.16)}
.stat-item:last-child{border-right:0}
.stat-item b{display:block;font-size:32px;color:var(--blue-deep);font-weight:700;line-height:1.15}
.stat-item span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.review-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.review-card{grid-column:span 4;background:var(--white);border-radius:12px;padding:22px;box-shadow:var(--shadow)}
.review-card:nth-child(1){grid-column:span 6}
.review-card:nth-child(2){grid-column:span 6}
.who{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;color:#fff;font-weight:700;background:var(--blue)}
.avatar.oak{background:var(--oak-deep)}
.avatar.rock{background:var(--rock)}
.avatar.ink{background:var(--dark)}
.who strong{display:block;font-size:14px}
.who span{font-size:12px;color:var(--muted)}
.stars{color:var(--star);font-size:12px;letter-spacing:1px;margin-bottom:8px}
.review-card p{font-size:14px;color:var(--ink)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.news-track{display:flex;gap:16px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.news-card{
  min-width:min(78vw,320px);scroll-snap-align:start;background:var(--white);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)
}
.news-card img{height:170px;width:100%;object-fit:cover;border-radius:0}
.news-card .body{padding:16px 16px 18px}
.news-card time{font-size:12px;color:var(--blue)}
.news-card h3{font-size:16px;margin:6px 0;font-weight:600}
.news-card p{font-size:13px;color:var(--muted)}
.partner-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px}
.partner-item{
  min-width:160px;height:76px;background:var(--white);border-radius:10px;box-shadow:var(--shadow);
  display:grid;place-items:center;color:var(--nickel);font-weight:700;letter-spacing:.12em;filter:grayscale(1);opacity:.78;
  transition:filter .2s ease,opacity .2s ease,color .2s ease
}
.partner-item:hover{filter:none;opacity:1;color:var(--blue-deep)}
.faq-list{max-width:860px}
.faq-item{background:var(--white);border-radius:12px;box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.faq-q{
  width:100%;text-align:left;min-height:56px;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:16px;font-weight:600;color:var(--ink)
}
.faq-q i{color:var(--blue);transition:transform .2s ease}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{display:none;padding:0 20px 18px;color:var(--muted);font-size:15px}
.faq-item.is-open .faq-a{display:block}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.guard-item{
  background:rgba(255,255,255,.72);border:1px solid var(--blue-mid);border-radius:12px;padding:22px 18px;text-align:center
}
.guard-item i{color:var(--blue);font-size:20px;margin-bottom:8px}
.guard-item h3{font-size:16px;margin-bottom:6px}
.guard-item p{font-size:13px;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start}
.contact-note{background:var(--white);border-radius:12px;box-shadow:var(--shadow);padding:28px 26px}
.contact-note h2{margin-bottom:12px}
.contact-note p{color:var(--muted);margin-bottom:12px}
.contact-dl{margin-top:18px}
.contact-dl div{display:flex;gap:10px;padding:8px 0;border-top:1px solid var(--line);font-size:14px}
.contact-dl i{color:var(--blue);width:18px}
.gift{margin-top:16px;padding:12px 14px;background:var(--stone);border-radius:8px;font-size:13px;color:var(--blue-deep)}
.form-card{background:var(--white);border-radius:12px;box-shadow:var(--shadow);padding:26px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;border:1px solid var(--line);border-radius:7px;padding:10px 12px;background:#fff;color:var(--ink);font-size:14px
}
.field textarea{min-height:96px;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--blue-mid)}
.form-msg{display:none;margin-top:10px;padding:10px 12px;border-radius:7px;background:var(--blue-soft);color:var(--blue-deep);font-size:14px}
.form-msg.is-on{display:block}
.form-msg.error{background:#f8e8e6;color:var(--danger)}
.site-footer{background:#24303A;color:#D5D0C6;padding:64px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;margin-bottom:36px}
.site-footer .brand{color:#fff;margin-bottom:12px}
.site-footer .logo-text span{color:#B7B1A7}
.site-footer p{color:#B7B1A7;max-width:280px}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:12px;font-weight:600}
.site-footer a{color:#D5D0C6}
.site-footer a:hover{color:#fff}
.site-footer li{margin:8px 0}
.copyright{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:#9AA19A}
.lightbox{position:fixed;inset:0;background:rgba(20,26,30,.82);display:none;align-items:center;justify-content:center;z-index:120;padding:24px}
.lightbox.is-on{display:flex}
.lightbox img{max-width:min(92vw,980px);max-height:78vh;border-radius:10px}
.lightbox p{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);color:#fff;font-size:14px}
.lightbox-close{position:absolute;top:18px;right:18px;width:44px;height:44px;border-radius:7px;background:#fff;color:var(--ink)}
@media (max-width:1280px){
  .hero h1{font-size:36px}
  .idea-copy{padding:56px 40px}
}
@media (max-width:1024px){
  :root{--nav-h:104px}
  .nav-list a{padding:8px 8px;font-size:13px}
  .hero{min-height:74vh}
  .hero-grid,.intro-grid,.product-stage,.rank,.contact-grid,.idea-grid,.story-list{grid-template-columns:1fr}
  .story-card:first-child{grid-template-columns:1fr}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .service-card.wide{grid-column:span 2}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .spec-bar{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:repeat(3,1fr);gap:22px}
  .timeline::before{display:none}
  .scene-band,.scene-band:nth-child(even){grid-template-columns:1fr}
  .scene-band:nth-child(even) .scene-copy,.scene-band:nth-child(even) .scene-pic{order:initial}
  .case-wall{grid-auto-rows:140px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .review-card,.review-card:nth-child(1),.review-card:nth-child(2){grid-column:span 6}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .product-card img,.product-card.is-feature img{height:240px}
  .intro-photo img{height:420px}
}
@media (max-width:768px){
  :root{--nav-h:92px}
  .container{width:min(100% - 32px,var(--container))}
  .topbar{font-size:11px}
  .nav-list,.nav-cta .btn{display:none}
  .menu-toggle{display:inline-flex}
  .hero{min-height:68vh;padding:18px 0 48px}
  .hero h1{font-size:32px}
  .hero-icons{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .section h2,.idea-copy h2{font-size:26px}
  .service-grid,.adv-grid,.spec-bar,.timeline,.guard-grid{grid-template-columns:1fr 1fr}
  .service-card.wide{grid-column:span 2;grid-template-columns:auto 1fr}
  .form-row{grid-template-columns:1fr}
  .case-item,.case-item.lg,.case-item.wide,.case-item.tall{grid-column:span 6;grid-row:span 2}
  .review-card,.review-card:nth-child(1),.review-card:nth-child(2){grid-column:span 12}
  .compare{grid-template-columns:1fr}
}
@media (max-width:520px){
  .topbar-right{display:none}
  .hero{min-height:64vh}
  .hero h1{font-size:28px}
  .lead{font-size:15px}
  .service-grid,.adv-grid,.spec-bar,.timeline,.guard-grid,.stat-strip,.footer-grid{grid-template-columns:1fr}
  .service-card.wide{grid-column:span 1;grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid rgba(62,125,143,.16)}
  .case-item,.case-item.lg,.case-item.wide,.case-item.tall{grid-column:span 12}
  .intro-photo img{height:280px}
  .idea-copy{padding:36px 22px}
  .hero-status{padding:10px}
  .quota{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: index */
:root {
      --blue: #3a6f8c;
      --blue-deep: #2d5a73;
      --blue-hover: #335f78;
      --blue-soft: #e7f1f5;
      --blue-line: #c5d8e2;
      --stone: #f4efe6;
      --oak: #c4a882;
      --oak-soft: #efe4d2;
      --nickel: #8a8f93;
      --rock: #5c6468;
      --dark: #2c3338;
      --dark-2: #3a4349;
      --bg: #fbf9f6;
      --bg-2: #f3f6f8;
      --white: #ffffff;
      --text: #2a3035;
      --muted: #5e676d;
      --border: #e4e0d8;
      --danger: #9a4a3c;
      --ok: #2f7a5b;
      --radius-card: 12px;
      --radius-btn: 7px;
      --radius-img: 8px;
      --shadow: 0 8px 28px rgba(44, 62, 80, 0.08);
      --shadow-hover: 0 14px 34px rgba(44, 62, 80, 0.14);
      --header-h: 108px;
      --container: 1220px;
      --ease: cubic-bezier(.22,.61,.36,1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      font-weight: 400;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
    }
    body.nav-open { overflow: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--blue); text-decoration: none; transition: color .2s var(--ease); }
    a:hover { color: var(--blue-deep); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.28; color: var(--text); }
    h1 { font-size: 40px; letter-spacing: .02em; }
    h2 { font-size: 32px; }
    h3 { font-size: 18px; font-weight: 600; }
    p { margin: 0 0 1em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .sr-only {
      position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
      overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
    }
    :focus-visible {
      outline: 2px solid var(--blue);
      outline-offset: 2px;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 20px; border-radius: var(--radius-btn);
      font-size: 15px; font-weight: 600; letter-spacing: .02em; line-height: 1;
      transition: transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary { background: var(--blue); color: var(--white); box-shadow: 0 6px 16px rgba(58,111,140,.22); }
    .btn-primary:hover { background: var(--blue-hover); color: var(--white); }
    .btn-ghost { background: transparent; color: var(--blue); border: 1px solid var(--blue); }
    .btn-ghost:hover { background: var(--blue-soft); color: var(--blue-deep); }
    .btn-light { background: transparent; color: var(--stone); border: 1px solid rgba(244,239,230,.55); }
    .btn-light:hover { background: rgba(255,255,255,.08); color: var(--white); }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 28px; padding: 4px 10px; border-radius: 6px;
      background: var(--blue-soft); color: var(--blue-deep);
      font-size: 12px; font-weight: 500; letter-spacing: .04em;
    }
    .badge-oak { background: var(--oak-soft); color: #6d5430; }
    .kicker {
      display: inline-block; margin-bottom: 10px;
      color: var(--blue); font-size: 13px; font-weight: 600; letter-spacing: .12em;
    }
    .lead {
      max-width: 42em; color: var(--muted); font-size: 16px;
    }
    .section {
      padding: 104px 0;
      position: relative;
    }
    .section-alt { background: var(--bg-2); }
    .section-stone { background: var(--stone); }
    .section-head { margin-bottom: 36px; max-width: 760px; }
    .section-head h2 { margin-bottom: 14px; }
    .card {
      background: var(--white);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow);
      border: 1px solid rgba(228,224,216,.7);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .site-header {
      position: sticky; top: 0; z-index: 80;
      background: var(--white);
      transition: box-shadow .2s var(--ease);
    }
    .site-header.is-stuck { box-shadow: 0 1px 0 rgba(58,111,140,.16); }
    .nav-top {
      background: #f7fafb;
      border-bottom: 1px solid var(--blue-line);
      font-size: 12px; color: var(--muted); min-height: 34px;
    }
    .nav-top .container {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      min-height: 34px;
    }
    .nav-top a { color: var(--muted); }
    .nav-top a:hover { color: var(--blue); }
    .nav-main { background: var(--white); }
    .nav-main .container {
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
      min-height: 74px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--text); flex-shrink: 0;
    }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 8px;
      background: var(--blue); color: var(--white);
      display: grid; place-items: center;
    }
    .logo-text { font-size: 16px; font-weight: 700; letter-spacing: .06em; }
    .logo-text span { color: var(--blue); }
    .nav-links {
      display: flex; align-items: center; gap: 4px;
    }
    .nav-links a {
      position: relative; color: var(--text); font-size: 14px; font-weight: 500;
      padding: 10px 12px; min-height: 44px; display: inline-flex; align-items: center;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px;
      height: 2px; background: transparent;
    }
    .nav-links a:hover { color: var(--blue); }
    .nav-links a.is-active { color: var(--blue); }
    .nav-links a.is-active::after { background: var(--blue); }
    .nav-cta { display: flex; align-items: center; gap: 12px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border-radius: 8px;
      border: 1px solid var(--border); align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { width: 18px; height: 2px; background: var(--text); display: block; }
    .drawer-backdrop {
      position: fixed; inset: 0; background: rgba(44,51,56,.35); z-index: 90;
      opacity: 0; pointer-events: none; transition: opacity .25s var(--ease);
    }
    .drawer {
      position: fixed; top: 0; right: 0; width: min(86vw, 360px); height: 100%;
      background: var(--white); z-index: 100; padding: 24px 22px 32px;
      transform: translateX(100%); transition: transform .28s var(--ease);
      display: flex; flex-direction: column; gap: 8px;
      box-shadow: -12px 0 32px rgba(44,51,56,.12);
    }
    body.nav-open .drawer { transform: translateX(0); }
    body.nav-open .drawer-backdrop { opacity: 1; pointer-events: auto; }
    .drawer a {
      min-height: 48px; display: flex; align-items: center;
      color: var(--text); font-size: 16px; font-weight: 600;
      border-bottom: 1px solid var(--border);
    }
    .drawer-close {
      align-self: flex-end; width: 44px; height: 44px; border-radius: 8px;
      border: 1px solid var(--border);
    }
    .hero {
      padding: 28px 0 72px;
      min-height: calc(78vh - var(--header-h));
      background:
        linear-gradient(180deg, #f7fafb 0%, var(--bg) 58%, var(--stone) 100%);
    }
    .status-bar {
      display: flex; flex-wrap: wrap; gap: 10px 18px;
      padding: 10px 14px; border-radius: 10px;
      background: var(--white); border: 1px solid var(--blue-line);
      box-shadow: var(--shadow); margin-bottom: 28px;
      font-size: 13px; color: var(--muted);
    }
    .status-bar b { color: var(--blue-deep); font-weight: 600; }
    .status-dot {
      width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
      display: inline-block; margin-right: 6px;
    }
    .hero-grid {
      display: grid; grid-template-columns: minmax(0, 620px) minmax(0, 1fr);
      gap: 48px; align-items: center;
    }
    .hero-copy .brand-line {
      font-size: 14px; font-weight: 700; letter-spacing: .16em; color: var(--blue);
      margin-bottom: 12px;
    }
    .hero-copy h1 { margin-bottom: 16px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
    .icon-stage {
      background: var(--white); border-radius: 14px; box-shadow: var(--shadow);
      border: 1px solid var(--border); padding: 18px 16px 16px; position: relative;
    }
    .icon-viewport { overflow: hidden; }
    .icon-track { display: flex; transition: transform .45s var(--ease); }
    .icon-slide { min-width: 100%; padding: 4px; }
    .icon-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
    }
    .icon-cell {
      background: var(--bg-2); border-radius: 10px; min-height: 96px;
      display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
      font-size: 13px; font-weight: 600; color: var(--text); text-align: center; padding: 10px 6px;
    }
    .icon-cell svg { width: 26px; height: 26px; stroke: var(--blue); fill: none; stroke-width: 1.6; }
    .icon-nav {
      display: flex; align-items: center; justify-content: space-between; margin-top: 12px;
    }
    .icon-dots { display: flex; gap: 8px; }
    .icon-dots button {
      width: 8px; height: 8px; border-radius: 50%; background: var(--blue-line);
    }
    .icon-dots button.is-on { background: var(--blue); }
    .icon-arrows { display: flex; gap: 8px; }
    .icon-arrows button {
      width: 44px; height: 36px; border-radius: 7px; border: 1px solid var(--border);
      color: var(--blue-deep); font-size: 18px;
    }
    .icon-arrows button:hover { background: var(--blue-soft); }
    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
    }
    .media-frame {
      border-radius: var(--radius-img); overflow: hidden; box-shadow: var(--shadow);
      position: relative;
    }
    .media-frame img { width: 100%; height: 460px; object-fit: cover; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 8px; }
    .check-list { margin-top: 16px; display: grid; gap: 10px; }
    .check-list li {
      padding-left: 28px; position: relative; color: var(--muted); font-size: 15px;
    }
    .check-list li::before {
      content: ""; position: absolute; left: 0; top: 8px; width: 14px; height: 14px;
      border: 2px solid var(--blue); border-radius: 3px;
      box-shadow: inset 3px -1px 0 -1px var(--blue);
    }
    .service-mosaic {
      display: grid; grid-template-columns: 1.3fr 1fr 1fr; grid-template-rows: auto auto;
      gap: 16px;
    }
    .svc {
      padding: 26px 24px 22px; position: relative; overflow: hidden;
    }
    .svc.wide { grid-column: 1 / 2; grid-row: 1 / 3; background: var(--white); }
    .svc .ico {
      width: 42px; height: 42px; border-radius: 8px; background: var(--blue-soft);
      display: grid; place-items: center; margin-bottom: 16px; color: var(--blue);
    }
    .svc p { color: var(--muted); font-size: 15px; margin: 10px 0 16px; }
    .text-link { font-size: 14px; font-weight: 600; color: var(--blue); }
    .craft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .craft {
      padding: 24px 22px 22px; background: var(--white); border-radius: var(--radius-card);
      box-shadow: var(--shadow); border-top: 3px solid transparent;
    }
    .craft:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-top-color: var(--blue); }
    .craft svg { width: 28px; height: 28px; stroke: var(--blue); fill: none; stroke-width: 1.6; margin-bottom: 12px; }
    .craft p { color: var(--muted); font-size: 14px; margin-top: 8px; }
    .product-stage { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
    .demo-board {
      background: var(--dark); border-radius: 14px; overflow: hidden; min-height: 460px; position: relative;
    }
    .demo-board img { width: 100%; height: 460px; object-fit: cover; opacity: .92; }
    .demo-caption {
      position: absolute; left: 18px; right: 18px; bottom: 18px;
      background: rgba(44,51,56,.72); color: var(--stone); padding: 14px 16px; border-radius: 10px;
    }
    .demo-caption strong { display: block; font-size: 16px; margin-bottom: 4px; }
    .pack-col { display: grid; gap: 14px; }
    .pack {
      display: grid; grid-template-columns: 108px 1fr; gap: 14px; padding: 12px;
      align-items: center;
    }
    .pack img { width: 108px; height: 86px; object-fit: cover; border-radius: 8px; }
    .pack.featured {
      padding: 0; grid-template-columns: 1fr; overflow: hidden;
    }
    .pack.featured img { width: 100%; height: 168px; }
    .pack.featured .pack-body { padding: 14px 16px 16px; }
    .pack .meta { font-size: 12px; color: var(--nickel); margin: 6px 0 10px; }
    .compare-wrap { margin-top: 28px; overflow-x: auto; }
    .compare {
      width: 100%; min-width: 640px; border-collapse: collapse; background: var(--white);
      border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
    }
    .compare th, .compare td {
      text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--border);
      font-size: 14px; vertical-align: top;
    }
    .compare th { background: var(--blue); color: var(--white); font-weight: 600; }
    .compare td:first-child { font-weight: 600; width: 26%; }
    .compare tr:last-child td { border-bottom: 0; }
    .spec-bar {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
      background: var(--blue-line); border-radius: 14px; overflow: hidden;
      box-shadow: var(--shadow);
    }
    .spec-item { background: var(--white); padding: 28px 22px; }
    .spec-item strong {
      display: block; font-size: 32px; color: var(--blue); font-weight: 700; letter-spacing: .02em;
    }
    .spec-item span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
    .timeline {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 23px;
      height: 2px; background: var(--blue-line);
    }
    .step { position: relative; padding-top: 8px; padding-right: 12px; }
    .step-num {
      width: 38px; height: 38px; border-radius: 50%; background: var(--blue); color: #fff;
      display: grid; place-items: center; font-weight: 700; font-size: 14px; position: relative; z-index: 1;
    }
    .step h3 { margin: 14px 0 8px; font-size: 16px; }
    .step p { color: var(--muted); font-size: 14px; }
    .idea {
      padding: 0; background: var(--dark);
    }
    .idea-grid { display: grid; grid-template-columns: 1.15fr .85fr; min-height: 560px; }
    .idea-photo {
      background: #1d2327 center/cover no-repeat;
      min-height: 420px;
    }
    .idea-copy {
      padding: 72px 56px; color: #d9e2e6; display: flex; flex-direction: column; justify-content: center;
    }
    .idea-copy h2 { color: #f7f4ee; margin: 10px 0 16px; }
    .idea-copy p { color: #c5ced3; max-width: 36em; }
    .idea-copy .kicker { color: var(--oak); }
    .case-wall {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      grid-template-rows: 210px 210px 210px;
      gap: 12px;
    }
    .case-item {
      position: relative; border-radius: 10px; overflow: hidden; cursor: pointer;
      box-shadow: var(--shadow);
    }
    .case-item img { width: 100%; height: 100%; object-fit: cover; }
    .case-item:nth-child(1) { grid-row: 1 / 3; }
    .case-item:nth-child(4) { grid-column: 2 / 4; }
    .case-item figcaption {
      position: absolute; left: 0; right: 0; bottom: 0;
      padding: 14px 14px 12px;
      background: linear-gradient(180deg, transparent, rgba(28,34,38,.78));
      color: #fff; font-size: 14px; font-weight: 600;
    }
    .case-item .pin {
      position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.9);
      color: var(--blue-deep); font-size: 12px; padding: 4px 8px; border-radius: 6px;
    }
    .scene-band {
      display: grid; grid-template-columns: 1fr 1fr; min-height: 280px;
      border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); margin-bottom: 16px;
      background: var(--white);
    }
    .scene-band:nth-child(even) { direction: rtl; }
    .scene-band:nth-child(even) > * { direction: ltr; }
    .scene-photo { min-height: 240px; background: center/cover no-repeat; }
    .scene-copy { padding: 36px 34px; display: flex; flex-direction: column; justify-content: center; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 8px; }
    .tag-cloud a {
      border: 1px solid var(--border); background: var(--white); color: var(--rock);
      padding: 8px 12px; min-height: 40px; border-radius: 8px; font-size: 13px; font-weight: 500;
    }
    .tag-cloud a:hover { border-color: var(--blue); color: var(--blue); }
    .story-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; }
    .story {
      padding: 28px; display: grid; grid-template-columns: 96px 1fr; gap: 18px; align-items: start;
    }
    .story img { width: 96px; height: 120px; object-fit: cover; border-radius: 8px; }
    .quote-mark { font-size: 40px; line-height: 1; color: var(--oak); font-weight: 700; }
    .story p { color: var(--muted); font-size: 15px; }
    .stack { display: grid; gap: 16px; }
    .scale-bar {
      background: var(--blue-soft); padding: 56px 0;
    }
    .scale-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .scale-item strong { display: block; font-size: 36px; color: var(--blue-deep); }
    .scale-item span { color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 16px; align-items: stretch; }
    .review { padding: 24px 22px; }
    .review:nth-child(2) { transform: translateY(-10px); }
    .stars { color: #c4a05a; letter-spacing: 2px; font-size: 14px; margin-bottom: 10px; }
    .avatar {
      width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
      background: var(--oak-soft); color: #6d5430; font-size: 12px; font-weight: 700;
    }
    .review-user { display: flex; gap: 10px; align-items: center; margin-top: 16px; font-size: 13px; color: var(--muted); }
    .news-list { display: grid; gap: 14px; }
    .news-item {
      display: grid; grid-template-columns: 168px 1fr auto; gap: 18px; align-items: center; padding: 12px;
    }
    .news-item img { width: 168px; height: 110px; object-fit: cover; border-radius: 8px; }
    .news-item time { font-size: 12px; color: var(--nickel); }
    .news-item p { color: var(--muted); font-size: 14px; margin-top: 6px; }
    .partner-row {
      display: flex; gap: 14px; overflow-x: auto; padding-bottom: 8px;
    }
    .partner {
      min-width: 160px; height: 76px; border-radius: 10px; background: var(--white);
      border: 1px solid var(--border); display: grid; place-items: center;
      color: var(--nickel); font-weight: 700; letter-spacing: .12em; filter: grayscale(1); opacity: .78;
      transition: filter .2s, opacity .2s, color .2s;
    }
    .partner:hover { filter: none; opacity: 1; color: var(--blue-deep); }
    .faq-list { display: grid; gap: 10px; max-width: 860px; }
    .faq-item { background: var(--white); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; padding: 18px 52px 18px 20px; min-height: 56px;
      font-size: 16px; font-weight: 600; position: relative; color: var(--text);
    }
    .faq-item button::after {
      content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
      color: var(--blue); font-size: 22px;
    }
    .faq-item.is-open button::after { content: "–"; }
    .faq-item .faq-a {
      display: none; padding: 0 20px 18px; color: var(--muted); font-size: 15px;
    }
    .faq-item.is-open .faq-a { display: block; }
    .guard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .guard {
      background: var(--white); border-radius: 12px; padding: 22px 18px; box-shadow: var(--shadow);
    }
    .guard h3 { margin: 8px 0; font-size: 16px; }
    .guard p { color: var(--muted); font-size: 14px; }
    .invite {
      margin-top: 28px; background: var(--white); border-radius: 14px; box-shadow: var(--shadow);
      display: grid; grid-template-columns: 1.2fr .8fr; overflow: hidden;
    }
    .invite-copy { padding: 28px 28px 24px; }
    .progress { height: 10px; background: var(--bg-2); border-radius: 99px; overflow: hidden; margin: 12px 0 8px; }
    .progress span { display: block; height: 100%; width: 55%; background: var(--blue); }
    .rank { padding: 0; }
    .rank li {
      display: flex; justify-content: space-between; gap: 12px; padding: 10px 0;
      border-bottom: 1px solid var(--border); font-size: 14px;
    }
    .invite-side {
      background: var(--stone); padding: 28px 24px; border-left: 1px solid var(--border);
    }
    .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: start; }
    .contact-panel { padding: 28px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .form-grid .full { grid-column: 1 / -1; }
    label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--border); border-radius: 8px;
      padding: 10px 12px; background: #fff; color: var(--text);
    }
    textarea { min-height: 110px; resize: vertical; }
    .form-note { font-size: 13px; color: var(--muted); margin-top: 10px; }
    .form-ok {
      display: none; margin-top: 12px; padding: 12px 14px; border-radius: 8px;
      background: #e7f4ec; color: var(--ok); font-size: 14px;
    }
    .form-err { color: var(--danger); font-size: 13px; min-height: 18px; }
    .site-footer {
      background: var(--dark); color: #c5ced3; padding: 56px 0 24px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 28px; }
    .site-footer h3 { color: #f4efe6; font-size: 15px; margin-bottom: 12px; }
    .site-footer a { color: #c5ced3; }
    .site-footer a:hover { color: #fff; }
    .foot-brand { font-size: 18px; font-weight: 700; color: #f4efe6; margin-bottom: 10px; }
    .foot-links { display: grid; gap: 8px; }
    .copyright {
      margin-top: 36px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.08);
      font-size: 12px; color: #8b959b; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    }
    .lightbox {
      position: fixed; inset: 0; background: rgba(28,34,38,.78); z-index: 200;
      display: none; align-items: center; justify-content: center; padding: 24px;
    }
    .lightbox.is-on { display: flex; }
    .lightbox-card {
      width: min(920px, 100%); background: var(--white); border-radius: 12px; overflow: hidden;
    }
    .lightbox-card img { width: 100%; height: 420px; object-fit: cover; }
    .lightbox-card .lb-body { padding: 18px 20px 22px; }
    .lb-close {
      position: absolute; top: 18px; right: 18px; width: 44px; height: 44px;
      border-radius: 8px; background: #fff; font-size: 20px;
    }
    @media (max-width: 1280px) {
      h1 { font-size: 36px; }
      .case-wall { grid-template-rows: 190px 190px 190px; }
    }
    @media (max-width: 1024px) {
      :root { --header-h: 102px; }
      h1 { font-size: 32px; } h2 { font-size: 28px; }
      .section { padding: 80px 0; }
      .nav-links { display: none; }
      .nav-cta .btn { display: none; }
      .menu-toggle { display: inline-flex; }
      .hero-grid, .intro-grid, .product-stage, .idea-grid, .story-grid, .contact-grid, .invite { grid-template-columns: 1fr; }
      .service-mosaic { grid-template-columns: 1fr 1fr; }
      .svc.wide { grid-column: auto; grid-row: auto; }
      .craft-grid, .review-grid, .guard-grid, .spec-bar, .scale-grid { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr 1fr 1fr; gap: 18px 12px; }
      .timeline::before { display: none; }
      .case-wall { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
      .case-item:nth-child(1), .case-item:nth-child(4) { grid-column: auto; grid-row: auto; }
      .case-item { min-height: 210px; }
      .media-frame img, .demo-board img { height: 360px; }
      .review:nth-child(2) { transform: none; }
      .foot-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
      .news-item { grid-template-columns: 132px 1fr; }
      .news-item .btn { display: none; }
    }
    @media (max-width: 768px) {
      :root { --header-h: 98px; }
      .container { width: min(100% - 28px, var(--container)); }
      .section { padding: 64px 0; }
      h1 { font-size: 28px; } h2 { font-size: 24px; }
      .hero { min-height: 64vh; padding-bottom: 48px; }
      .icon-grid { grid-template-columns: 1fr 1fr; }
      .service-mosaic, .craft-grid, .spec-bar, .scale-grid, .guard-grid, .review-grid { grid-template-columns: 1fr; }
      .timeline { grid-template-columns: 1fr; }
      .scene-band { grid-template-columns: 1fr; }
      .scene-band:nth-child(even) { direction: ltr; }
      .story { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .foot-grid { grid-template-columns: 1fr; }
      .status-bar { font-size: 12px; }
      .pack { grid-template-columns: 88px 1fr; }
      .news-item { grid-template-columns: 1fr; }
      .news-item img { width: 100%; height: 180px; }
      .idea-copy { padding: 40px 24px 48px; }
      .copyright { flex-direction: column; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 24px; }
      .hero-actions .btn { width: 100%; }
      .badge-row .badge { font-size: 11px; }
      .lightbox-card img { height: 220px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }