/* roulang page: index */
:root{
  --ink:#1A2228;
  --teal:#1A9B8C;
  --teal-deep:#14786C;
  --amber:#D4920A;
  --amber-deep:#B87A08;
  --paper:#F3F0E8;
  --card:#FFFDFB;
  --dark:#12181C;
  --dark-2:#1A2228;
  --line:#D8D2C6;
  --line-d:#2A333A;
  --muted:#5C646C;
  --white:#FFFDFB;
  --radius:6px;
  --radius-sm:4px;
  --shadow:0 1px 0 rgba(26,34,40,.05),0 2px 6px rgba(26,34,40,.06);
  --shadow-h:0 2px 0 rgba(26,34,40,.07),0 4px 10px rgba(26,34,40,.08);
  --container:1220px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --top-h:38px;
  --nav-h:66px;
  --space:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--paper);
  line-height:1.8;
  font-size:16px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  padding-bottom:68px;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--teal-deep);text-decoration:none;transition:color .2s,border-color .2s,background .2s,transform .2s,box-shadow .2s}
a:hover{color:var(--teal)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:.02em;line-height:1.28;font-weight:700;color:var(--ink)}
h1{font-size:42px;margin-bottom:18px}
h2{font-size:30px;margin-bottom:14px}
h3{font-size:18px;margin-bottom:8px;font-weight:600}
p+p{margin-top:16px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.container{width:min(100% - 40px,var(--container));margin:0 auto}
.skip{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{left:12px;top:12px;width:auto;height:auto;padding:8px 12px;background:var(--amber);color:var(--dark);z-index:80;border-radius:var(--radius-sm)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--card);box-shadow:0 1px 0 var(--line)}
.topbar{
  background:var(--dark);
  color:#C9D0D4;
  font-size:12px;
  height:var(--top-h);
  display:flex;align-items:center;
  transition:transform .25s,height .25s,opacity .25s;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:min(100% - 40px,var(--container));margin:0 auto}
.topbar a{color:#E7E3D8}
.topbar a:hover{color:#fff}
.top-left,.top-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.top-item{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.top-item svg{flex:0 0 auto}
.badge{
  display:inline-flex;align-items:center;gap:4px;
  border:1px solid #3A444C;color:#D6C7A1;
  padding:2px 8px;border-radius:2px;letter-spacing:.04em;font-size:11px;
}
.site-header.is-compact .topbar{transform:translateY(-100%);height:0;opacity:0;overflow:hidden;pointer-events:none}
.navrow{height:var(--nav-h);display:flex;align-items:center}
.navrow-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:min(100% - 40px,var(--container));margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);min-height:44px}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:4px;background:var(--ink);color:var(--teal);
  display:grid;place-items:center;position:relative;flex:0 0 34px;
  box-shadow:inset 0 0 0 1px #2C3A40;
}
.logo-mark span{font-size:11px;font-weight:700;letter-spacing:.08em}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:700}
.logo-text small{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.12em}
.menu{display:flex;align-items:center;gap:4px}
.menu a{
  color:var(--ink);font-size:14px;font-weight:500;padding:10px 10px;min-height:44px;
  display:inline-flex;align-items:center;position:relative;
}
.menu a:hover{color:var(--teal-deep)}
.menu a.active{color:var(--teal-deep)}
.menu a.active::after,.menu a:hover::after{
  content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;background:var(--amber);
}
.nav-cta{display:flex;align-items:center;gap:10px}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger i{display:block;width:18px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.nav-open .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .burger i:nth-child(2){opacity:0}
.nav-open .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--radius-sm);font-weight:600;font-size:14px;
  letter-spacing:.04em;border:1px solid transparent;transition:transform .15s,background .15s,border-color .15s,box-shadow .15s,color .15s;
}
.btn:focus-visible,.icon-btn:focus-visible,.menu a:focus-visible,.faq-q:focus-visible,.tab-btn:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--teal);outline-offset:2px;
}
.btn-primary{background:var(--amber);color:var(--dark);border-color:var(--amber)}
.btn-primary:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:var(--dark);transform:translateY(-1px);box-shadow:var(--shadow-h)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--white);border-color:#C5BEB2}
.btn-ghost:hover{border-color:#fff;color:#fff;transform:translateY(-1px)}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--white);transform:translateY(-1px)}
.btn-teal{background:var(--teal);color:#fff;border-color:var(--teal)}
.btn-teal:hover{background:var(--teal-deep);color:#fff;transform:translateY(-1px)}
.btn:active,.btn-line:active,.btn-teal:active,.btn-ghost:active{transform:translateY(1px)}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 104px);height:92vh;max-height:920px;background:var(--dark);color:var(--white);overflow:hidden}
.slides{position:absolute;inset:0}
.slide{
  position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s ease,visibility .6s;
  background-size:cover;background-position:center;
}
.slide.is-on{opacity:1;visibility:visible;z-index:1}
.slide-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(18,24,28,.88) 0%,rgba(18,24,28,.62) 42%,rgba(18,24,28,.28) 100%);
}
.slide-inner{
  position:relative;z-index:2;height:100%;
  width:min(100% - 40px,var(--container));margin:0 auto;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.7fr);gap:40px;align-items:center;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;color:#E2C48A;font-size:12px;letter-spacing:.16em;
  font-weight:600;margin-bottom:14px;text-transform:none;
}
.kicker::before{content:"";width:18px;height:2px;background:var(--amber)}
.hero-title{font-size:42px;line-height:1.22;font-weight:700;margin-bottom:16px;max-width:16em}
.hero-lead{font-size:16px;line-height:1.85;color:#D5D2CB;max-width:40em;margin-bottom:22px}
.hero-points{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{
  font-size:12px;padding:5px 10px;border:1px solid rgba(216,210,198,.35);border-radius:2px;
  color:#E7E3D8;letter-spacing:.04em;background:rgba(18,24,28,.35);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.param-panel{
  justify-self:end;width:100%;max-width:320px;
  background:rgba(18,24,28,.55);border:1px solid rgba(216,210,198,.22);
  border-radius:6px;padding:18px 18px 8px;backdrop-filter:none;
}
.param-panel h3{color:#F3F0E8;font-size:13px;letter-spacing:.14em;font-weight:600;margin-bottom:12px}
.param-row{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid rgba(216,210,198,.16);padding:10px 0;color:#C9D0D4;font-size:13px}
.param-row b{color:#fff;font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.hero-ctrl{position:absolute;z-index:3;left:0;right:0;bottom:22px;width:min(100% - 40px,var(--container));margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.hero-dots{display:flex;gap:8px}
.hero-dots button{
  width:28px;height:4px;background:#6A6660;border-radius:1px;min-height:12px;padding:4px 0;
  background-clip:content-box;
}
.hero-dots button.is-on{background:#D4920A;background-clip:content-box}
.icon-btn{
  width:44px;height:44px;border:1px solid rgba(216,210,198,.4);color:#fff;border-radius:4px;
  display:grid;place-items:center;
}
.icon-btn:hover{border-color:#fff;transform:translateY(-1px)}
.icon-btn:active{transform:translateY(1px)}

/* Sections */
.section{padding:var(--space) 0;position:relative}
.section.alt{background:var(--card)}
.section.paper{background:var(--paper)}
.section.dark{background:var(--dark);color:#E7E3D8}
.section.dark h2,.section.dark h3{color:#F3F0E8}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head.wide{max-width:880px}
.sec-k{color:var(--amber-deep);font-size:12px;letter-spacing:.18em;font-weight:600;margin-bottom:10px}
.section.dark .sec-k{color:#E2C48A}
.lead{color:var(--muted);font-size:16px;line-height:1.85}
.section.dark .lead{color:#B8BFC4}
.grid-bg{
  background-image:linear-gradient(rgba(26,34,40,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(26,34,40,.035) 1px,transparent 1px);
  background-size:56px 56px;
}

/* Sell strip */
.sell-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sell-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;display:grid;grid-template-columns:auto 1fr;gap:8px 16px;align-items:start;
  box-shadow:var(--shadow);transition:border-color .2s,box-shadow .2s;
}
.sell-item:hover{border-color:#B7B09F;box-shadow:var(--shadow-h)}
.sell-no{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--amber-deep);grid-column:1;grid-row:1 / 3;padding-top:4px}
.sell-item h3{margin:0;font-size:18px}
.sell-item p{grid-column:2;color:var(--muted);font-size:14px;line-height:1.7}

/* Split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.media-frame{position:relative}
.media-frame img{width:100%;height:420px;object-fit:cover;border-radius:6px;border:1px solid var(--line);box-shadow:var(--shadow)}
.media-cap{
  position:absolute;left:14px;bottom:14px;background:rgba(18,24,28,.86);color:#F3F0E8;
  font-size:12px;padding:8px 12px;border-radius:2px;letter-spacing:.06em;
}
.spec-list{margin-top:18px;display:grid;gap:10px}
.spec-list li{
  display:grid;grid-template-columns:8px 1fr;gap:10px;align-items:start;color:var(--ink);font-size:15px;line-height:1.7
}
.spec-list li::before{content:"";width:8px;height:8px;margin-top:8px;background:var(--teal);border-radius:1px}

/* Tabs */
.scene-box{display:grid;grid-template-columns:220px 1fr;gap:0;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.tab-list{background:var(--ink);display:flex;flex-direction:column}
.tab-btn{
  text-align:left;color:#C9D0D4;padding:16px 18px;min-height:52px;font-weight:600;font-size:15px;
  border-bottom:1px solid #2A333A;border-left:3px solid transparent;
}
.tab-btn:hover{color:#fff;background:#1A2228}
.tab-btn.is-on{color:#fff;background:#1A2228;border-left-color:var(--amber)}
.scene-main{display:grid;grid-template-columns:1.1fr .9fr}
.scene-main img{width:100%;height:100%;min-height:340px;object-fit:cover}
.scene-copy{padding:28px 26px}
.scene-copy p{color:var(--muted);margin-bottom:16px}
.point{display:flex;gap:10px;align-items:flex-start;margin-top:10px;font-size:14px;color:var(--ink);line-height:1.7}
.point i{flex:0 0 18px;height:18px;margin-top:4px;border-radius:2px;background:var(--teal);color:#fff;font-style:normal;font-size:11px;display:grid;place-items:center;font-weight:700}

/* Bento */
.bento{
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:auto auto auto;gap:14px;
}
.cap{
  background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px;
  box-shadow:var(--shadow);transition:border-color .2s,box-shadow .2s;
}
.cap:hover{border-color:#B7B09F;box-shadow:var(--shadow-h)}
.cap.feat{grid-column:1 / 3;grid-row:1 / 3;background:var(--ink);color:#E7E3D8;border-color:var(--ink)}
.cap.feat h3,.cap.feat .tag{color:#F3F0E8}
.cap.feat p{color:#B8BFC4}
.tag{
  display:inline-block;font-size:11px;letter-spacing:.12em;color:var(--teal-deep);font-weight:700;margin-bottom:10px
}
.cap.feat .tag{color:#E2C48A}
.cap p{color:var(--muted);font-size:14px;line-height:1.75}
.ico-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.ico{
  width:36px;height:36px;border:1px solid var(--line);border-radius:4px;display:grid;place-items:center;color:var(--teal);
  background:var(--paper);
}
.cap.feat .ico{background:#1A2228;border-color:#2A333A;color:var(--amber)}

/* Solutions */
.sol-grid{display:grid;grid-template-columns:1.25fr .75fr;grid-template-rows:1fr 1fr;gap:14px}
.sol{
  position:relative;border-radius:6px;overflow:hidden;border:1px solid var(--line);min-height:210px;
  box-shadow:var(--shadow);background:var(--dark);color:#fff;
}
.sol:first-child{grid-row:1 / 3;min-height:460px}
.sol img{width:100%;height:100%;object-fit:cover;opacity:.55;position:absolute;inset:0}
.sol .sol-body{position:relative;z-index:1;padding:24px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;
  background:linear-gradient(180deg,rgba(18,24,28,.05) 20%,rgba(18,24,28,.82) 100%)}
.sol .pill{align-self:flex-start;font-size:11px;letter-spacing:.1em;border:1px solid rgba(212,146,10,.7);color:#E2C48A;padding:3px 8px;border-radius:2px;margin-bottom:10px}
.sol h3{color:#fff;font-size:20px}
.sol p{color:#D5D2CB;font-size:14px;line-height:1.7;margin:8px 0 14px}
.sol .btn{align-self:flex-start}

/* Topology */
.topo{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.topo-visual{
  background:var(--ink);border-radius:6px;padding:24px 20px;min-height:340px;position:relative;overflow:hidden;
  border:1px solid #2A333A;
}
.topo-visual::before{
  content:"";position:absolute;inset:18px;border:1px dashed #2F3A42;pointer-events:none;
}
.node-row{display:flex;justify-content:space-between;gap:8px;position:relative;z-index:1;margin:18px 8px}
.node{
  flex:1;text-align:center;background:#1A2228;border:1px solid #3A444C;color:#E7E3D8;
  padding:12px 6px;border-radius:4px;font-size:12px;line-height:1.4;
}
.node b{display:block;color:var(--amber);font-size:11px;letter-spacing:.08em;margin-bottom:4px}
.bus-line{height:3px;background:var(--teal);margin:8px 18px;position:relative;z-index:1}
.bus-line::before,.bus-line::after{content:"";position:absolute;width:8px;height:8px;background:var(--amber);top:-3px;border-radius:1px}
.bus-line::before{left:0}
.bus-line::after{right:0}
.axis-scale{display:flex;justify-content:space-between;color:#8A9298;font-size:11px;font-variant-numeric:tabular-nums;padding:0 10px;position:relative;z-index:1}
.note-list{display:grid;gap:14px}
.note{
  border-left:3px solid var(--teal);padding:12px 14px;background:var(--card);border-radius:0 6px 6px 0;border:1px solid var(--line);border-left-width:3px;
}
.note strong{display:block;margin-bottom:4px}
.note span{color:var(--muted);font-size:14px;line-height:1.75}

/* Dark cases */
.case-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.case-card{position:relative;min-height:380px;border-radius:6px;overflow:hidden;border:1px solid #2A333A}
.case-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.case-card .cc{position:relative;z-index:1;padding:28px;height:100%;display:flex;flex-direction:column;justify-content:flex-end}
.delta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.delta div{background:rgba(18,24,28,.55);border:1px solid #2A333A;padding:12px;border-radius:4px}
.delta b{display:block;color:var(--amber);font-size:22px;font-variant-numeric:tabular-nums;line-height:1.2}
.delta span{font-size:12px;color:#B8BFC4}

/* Compare */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:6px;background:var(--card);box-shadow:var(--shadow)}
table.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:14px}
.cmp th,.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7}
.cmp thead th{background:var(--ink);color:#F3F0E8;font-weight:600;letter-spacing:.04em}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td:nth-child(1){font-weight:600;width:18%;color:var(--ink)}
.cmp td:nth-child(3){background:#F7F4EC}
.hl{color:var(--teal-deep);font-weight:600}

/* Stories */
.story-list{display:grid;gap:18px}
.story{
  display:grid;grid-template-columns:1.15fr .85fr;gap:0;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--card);box-shadow:var(--shadow)
}
.story-copy{padding:28px}
.story-copy blockquote{font-size:16px;line-height:1.85;color:var(--ink);margin:0 0 16px;border-left:3px solid var(--amber);padding-left:14px}
.who{font-size:13px;color:var(--muted)}
.who b{color:var(--ink)}
.story img{width:100%;height:100%;min-height:240px;object-fit:cover}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.stat{background:var(--card);padding:28px 18px;text-align:left}
.stat b{display:block;font-size:34px;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.03em;color:var(--ink)}
.stat em{font-style:normal;color:var(--amber-deep);font-size:16px;margin-left:2px}
.stat span{display:block;margin-top:8px;color:var(--muted);font-size:13px}

/* Reviews */
.rev-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rev{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px;box-shadow:var(--shadow)}
.stars{color:var(--amber);letter-spacing:2px;font-size:12px;margin-bottom:8px}
.rev p{font-size:15px;line-height:1.8;color:var(--ink);margin-bottom:14px}
.rev-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:12px}
.lab{border:1px solid var(--line);padding:2px 8px;border-radius:2px;font-size:12px;color:var(--teal-deep)}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.news{background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s}
.news:hover{border-color:#B7B09F;box-shadow:var(--shadow-h)}
.news img{width:100%;height:150px;object-fit:cover}
.news-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.news time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.news h3{font-size:16px;line-height:1.45}
.news p{color:var(--muted);font-size:13px;line-height:1.75}

/* FAQ */
.faq-list{display:grid;gap:8px;max-width:920px}
.faq-item{border:1px solid var(--line);background:var(--card);border-radius:6px;overflow:hidden}
.faq-q{
  width:100%;text-align:left;padding:16px 48px 16px 18px;min-height:52px;font-weight:600;position:relative;color:var(--ink);font-size:16px;line-height:1.5
}
.faq-q::after{
  content:"";position:absolute;right:18px;top:50%;width:10px;height:10px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s;
}
.faq-item.is-open .faq-q::after{transform:translateY(-20%) rotate(225deg)}
.faq-a{display:none;padding:0 18px 16px;color:var(--muted);font-size:15px;line-height:1.85}
.faq-item.is-open .faq-a{display:block}

/* Guarantee */
.g-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);background:var(--card);border-radius:6px;overflow:hidden;box-shadow:var(--shadow)}
.g-item{padding:20px 18px;display:flex;gap:12px;align-items:flex-start;border-right:1px solid var(--line)}
.g-item:last-child{border-right:0}
.g-item strong{display:block;font-size:15px}
.g-item span{color:var(--muted);font-size:13px;line-height:1.7}

/* Consult */
.consult-box{
  display:grid;grid-template-columns:1fr .9fr;gap:32px;align-items:stretch;
  background:var(--dark);border:1px solid #2A333A;border-radius:8px;padding:36px;box-shadow:0 8px 0 rgba(0,0,0,.18);
}
.consult-box h2{color:#F3F0E8}
.side-contact{margin-top:22px;display:grid;gap:10px}
.side-contact a,.side-contact p{color:#E7E3D8;font-size:15px}
.form{display:grid;gap:12px;background:#1A2228;border:1px solid #2A333A;border-radius:6px;padding:20px}
.form label{display:block;font-size:13px;color:#C9D0D4;margin-bottom:6px}
.form input,.form textarea{
  width:100%;min-height:44px;border:1px solid #3A444C;background:#12181C;color:#F3F0E8;
  border-radius:4px;padding:10px 12px;
}
.form textarea{min-height:96px;resize:vertical;line-height:1.6}
.form input:hover,.form textarea:hover{border-color:#5C646C}
.ok{background:#14352F;border:1px solid var(--teal);color:#D8F3EE;padding:12px 14px;border-radius:4px;font-size:14px}
.err{background:#3A2A12;border:1px solid var(--amber);color:#F3E2C4;padding:12px 14px;border-radius:4px;font-size:14px}

/* Footer */
.site-footer{background:#0E1316;color:#B8BFC4;padding:56px 0 28px;border-top:1px solid #2A333A}
.foot-grid{display:grid;grid-template-columns:1.3fr .9fr .9fr 1.1fr;gap:28px;margin-bottom:36px}
.site-footer h3{color:#F3F0E8;font-size:14px;letter-spacing:.12em;margin-bottom:14px}
.site-footer a{color:#C9D0D4}
.site-footer a:hover{color:#fff}
.foot-logo{color:#F3F0E8;font-weight:700;font-size:16px;margin-bottom:10px;display:inline-block}
.foot-list{display:grid;gap:8px;font-size:14px}
.foot-bottom{border-top:1px solid #2A333A;padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:#8A9298}

/* Float */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  background:rgba(18,24,28,.96);border-top:1px solid #2A333A;
  transform:translateY(110%);transition:transform .25s;
}
.float-bar.is-show{transform:translateY(0)}
.float-inner{width:min(100% - 24px,var(--container));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.float-inner span{color:#D5D2CB;font-size:14px}
.float-actions{display:flex;gap:8px}

.drawer{
  display:none;position:fixed;inset:0;background:rgba(18,24,28,.5);z-index:55;
}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(86vw,360px);background:var(--card);
  padding:24px 18px;overflow:auto;transform:translateX(100%);transition:transform .25s;box-shadow:-8px 0 20px rgba(0,0,0,.18);
}
.nav-open .drawer{display:block}
.nav-open .drawer-panel{transform:translateX(0)}
.drawer-panel a{
  display:flex;align-items:center;min-height:48px;padding:8px 6px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:600
}
.drawer-close{min-height:44px;margin-bottom:8px;color:var(--muted)}

@media (max-width:1280px){
  h1,.hero-title{font-size:38px}
  .hero{height:88vh}
}
@media (max-width:1024px){
  :root{--space:72px}
  h1,.hero-title{font-size:34px}
  h2{font-size:26px}
  .slide-inner{grid-template-columns:1fr;gap:22px}
  .param-panel{max-width:100%;justify-self:start}
  .menu a{padding:10px 7px;font-size:13px}
  .split,.topo,.case-grid{grid-template-columns:1fr;gap:24px}
  .scene-box{grid-template-columns:180px 1fr}
  .scene-main{grid-template-columns:1fr}
  .scene-main img{min-height:240px;height:240px}
  .news-grid{grid-template-columns:1fr 1fr}
  .bento{grid-template-columns:1fr 1fr}
  .cap.feat{grid-column:1 / 3;grid-row:auto}
  .sol-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .sol:first-child{grid-row:auto;grid-column:1 / -1;min-height:320px}
  .media-frame img{height:340px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:22px}
  .consult-box{grid-template-columns:1fr;padding:24px}
}
@media (max-width:768px){
  :root{--space:56px;--nav-h:58px}
  body{font-size:15px}
  h1,.hero-title{font-size:28px}
  h2{font-size:22px}
  .top-left .hide-m,.top-item.hide-m{display:none}
  .menu,.nav-cta .btn{display:none}
  .burger{display:flex}
  .hero{height:auto;min-height:calc(100vh - 96px);padding:36px 0 72px}
  .slide-inner{padding-top:12px}
  .sell-list,.stats,.g-bar,.rev-grid{grid-template-columns:1fr 1fr}
  .g-item{border-right:0;border-bottom:1px solid var(--line)}
  .story{grid-template-columns:1fr}
  .scene-box{grid-template-columns:1fr}
  .tab-list{flex-direction:row;overflow-x:auto}
  .tab-btn{border-bottom:0;border-right:1px solid #2A333A;white-space:nowrap;border-left-width:0;border-bottom:3px solid transparent}
  .tab-btn.is-on{border-bottom-color:var(--amber)}
  .bento,.news-grid,.sol-grid{grid-template-columns:1fr}
  .cap.feat{grid-column:auto}
  .foot-grid{grid-template-columns:1fr}
  .float-inner span{display:none}
  .cmp thead{display:none}
  table.cmp{min-width:0}
  .cmp tr{display:grid;grid-template-columns:1fr;border-bottom:1px solid var(--line);padding:8px 0}
  .cmp td{border:0;padding:6px 16px}
  .cmp td:nth-child(1){background:var(--ink);color:#fff}
  .cmp td:nth-child(3){background:#F3F0E8}
  .hero-ctrl{bottom:12px}
}
@media (max-width:520px){
  .container,.topbar-inner,.navrow-inner,.hero-ctrl,.slide-inner,.float-inner{width:min(100% - 24px,var(--container))}
  h1,.hero-title{font-size:24px}
  .sell-list,.stats,.g-bar,.rev-grid,.news-grid{grid-template-columns:1fr}
  .param-row b{font-size:18px}
  .stat b{font-size:28px}
  .media-frame img{height:240px}
  .hero-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
}