*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#f4efe7;
  --bg-soft:#fbf8f3;
  --bg-ink:#161616;
  --text:#191919;
  --muted:#66625d;
  --muted-2:#8b857d;
  --line:#ddd2c3;
  --line-strong:#cdbfae;
  --white:#ffffff;
  --dark:#171512;
  --accent:#d8c6b0;
  --accent-2:#e9dfd1;
  --shadow:0 18px 50px rgba(25,24,22,.08);
  --shadow-soft:0 10px 28px rgba(25,24,22,.05);
  --radius:28px;
  --radius-lg:40px;
  --container:1280px;
}
html,body{margin:0;padding:0}
body{
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at left top, rgba(232,224,212,.8), transparent 26%),
    radial-gradient(circle at right top, rgba(246,241,234,.9), transparent 22%),
    linear-gradient(180deg, #f6f2ec 0%, #f4efe7 100%);
  line-height:1.78;
}
img{max-width:100%;display:block;height:auto}
a{text-decoration:none;color:inherit}
button{font:inherit}
.container{width:min(var(--container), calc(100% - 34px));margin:0 auto}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:#7c7063;
  font-weight:900;
}
.section-head{max-width:760px;margin:0 0 26px}
.section-head.center{text-align:center;margin-inline:auto}
.section-head h2,.hero-copy h1,.portal-intro h1{
  margin:12px 0 14px;
  font-size:clamp(38px, 6vw, 78px);
  line-height:.95;
  letter-spacing:-.05em;
}
.section-head p,.lead,.entry-card p,.product-copy p,.guide-copy p,.guide-card p,.band p,.support-copy p,.support-panel p,.faq-item p,.footer-brand p,.portal-copy p,.portal-box p,.portal-glass p{
  margin:0;
  color:var(--muted);
}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  border-bottom:1px solid rgba(205,191,174,.55);
  background:rgba(248,244,238,.78);
  backdrop-filter:blur(16px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px 0;
  position:relative;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:max-content;
}
.brand-mark{
  width:46px;
  height:46px;
  border-radius:15px;
  display:grid;
  place-items:center;
  background:linear-gradient(145deg,#1b1a18,#33302b);
  color:#fff;
  font-weight:900;
  font-size:22px;
  box-shadow:var(--shadow-soft);
}
.brand-copy{display:flex;flex-direction:column;gap:2px}
.brand-copy strong{font-size:18px;line-height:1}
.brand-copy em{font-style:normal;color:var(--muted-2);font-size:12px;letter-spacing:.1em}
.site-nav{
  display:flex;
  gap:20px;
  margin-left:auto;
}
.site-nav a{
  font-size:14px;
  font-weight:800;
  color:#44403b;
}
.site-nav a:hover{color:#111}
.header-actions{
  display:flex;
  gap:10px;
}
.menu-toggle{
  display:none;
  margin-left:auto;
  border:0;
  background:transparent;
  padding:0;
}
.menu-toggle span{
  display:block;
  width:24px;
  height:2px;
  margin:5px 0;
  background:#151515;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 20px;
  border-radius:999px;
  border:1px solid transparent;
  font-weight:900;
  transition:.22s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px)}
.btn-dark{
  background:var(--dark);
  color:#fff;
  box-shadow:var(--shadow-soft);
}
.btn-soft{
  background:#efe6d9;
  color:var(--dark);
  border-color:#e3d7c7;
}
.btn-line{
  background:rgba(255,255,255,.62);
  color:var(--dark);
  border-color:#d8c9b7;
}
.btn-ivory{
  background:#fff8ef;
  color:#171512;
}

.hero{padding:44px 0 36px}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:28px;
  align-items:center;
}
.hero-copy{
  padding-right:10px;
}
.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin:28px 0 26px;
}
.hero-meta{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}
.hero-meta article{
  padding:18px;
  background:rgba(255,255,255,.62);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow-soft);
}
.hero-meta strong{
  display:block;
  font-size:14px;
}
.hero-meta span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:14px;
  word-break:break-word;
}

.hero-showcase{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:16px;
}
.showcase-main{
  min-height:640px;
  padding:20px;
  border-radius:42px;
  background:
    radial-gradient(circle at top, rgba(255,255,255,.55), transparent 34%),
    linear-gradient(180deg, #efe4d5 0%, #e4d3bf 100%);
  border:1px solid #dbcdbb;
  box-shadow:var(--shadow);
  display:flex;
  align-items:flex-end;
  justify-content:center;
  position:relative;
  overflow:hidden;
}
.showcase-main img{
  max-height:540px;
  object-fit:contain;
  filter:drop-shadow(0 26px 38px rgba(0,0,0,.18));
}
.showcase-badge{
  position:absolute;
  left:18px;
  top:18px;
  padding:9px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  border:1px solid rgba(0,0,0,.06);
  font-size:12px;
  font-weight:900;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.showcase-side{
  display:grid;
  gap:16px;
}
.mini-card{
  min-height:202px;
  border-radius:32px;
  padding:18px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  display:grid;
  grid-template-columns:1fr 120px;
  gap:12px;
  align-items:center;
}
.mini-card img{
  max-height:132px;
  margin-left:auto;
  object-fit:contain;
  filter:drop-shadow(0 16px 20px rgba(0,0,0,.12));
}
.mini-text strong{
  display:block;
  font-size:22px;
  line-height:1.05;
}
.mini-text span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:14px;
}

.entry,.products,.guide,.compare,.dual-band,.support,.portal-page,.faq,.portal-cards,.portal-support-band{padding:36px 0}
.entry-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1fr;
  gap:16px;
}
.entry-card{
  min-height:240px;
  padding:24px;
  border-radius:30px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.68);
  box-shadow:var(--shadow-soft);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  text-align:left;
}
.entry-card.highlight{
  background:
    linear-gradient(180deg, rgba(255,255,255,.76) 0%, rgba(250,245,238,.85) 100%);
}
.entry-card.contact{cursor:pointer}
.entry-card small{
  width:48px;height:48px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:#f2eadf;
  border:1px solid #ded0bf;
  font-size:14px;
  font-weight:900;
}
.entry-card h3,.product-copy h3,.guide-card h3,.band h2,.support-copy h2,.portal-copy h2,.portal-box h3,.portal-glass h2{
  margin:18px 0 10px;
  font-size:34px;
  line-height:1.02;
  letter-spacing:-.04em;
}
.entry-card b{
  color:#4b4740;
  word-break:break-all;
}

.product-list{
  display:grid;
  gap:18px;
}
.product-row{
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:20px;
  align-items:center;
  padding:24px;
  border-radius:36px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.product-row.reverse{
  grid-template-columns:1.08fr .92fr;
}
.product-row.reverse .product-media{order:2}
.product-row.reverse .product-copy{order:1}
.product-media{
  min-height:400px;
  border-radius:30px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
  overflow:hidden;
}
.product-media img{
  max-height:330px;
  object-fit:contain;
  filter:drop-shadow(0 24px 30px rgba(0,0,0,.14));
}
.product-media.pearl{background:linear-gradient(180deg,#efe5d8 0%,#ece0d2 100%)}
.product-media.stone{background:linear-gradient(180deg,#efece7 0%,#ebe8e2 100%)}
.product-media.cloud{background:linear-gradient(180deg,#e8ecee 0%,#e2e7ea 100%)}
.product-media.sand{background:linear-gradient(180deg,#efe6d8 0%,#eaddca 100%)}
.product-tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:999px;
  background:#f2eadf;
  border:1px solid #e0d1c0;
  color:#544f48;
  font-size:12px;
  font-weight:900;
}
.product-pills,.support-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.product-pills span,.support-tags span{
  padding:9px 13px;
  border-radius:999px;
  border:1px solid #ddcfbf;
  background:#faf5ee;
  color:#423f39;
  font-size:13px;
}

.guide-grid{
  display:grid;
  grid-template-columns:.98fr 1.02fr;
  gap:18px;
  align-items:start;
}
.guide-copy{
  padding:28px;
  border-radius:32px;
  background:#f9f5ef;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.guide-cards{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
.guide-card{
  padding:24px;
  border-radius:28px;
  background:rgba(255,255,255,.78);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.guide-card strong{
  font-size:46px;
  line-height:1;
  letter-spacing:-.04em;
  color:#c7b39b;
}

.compare-shell{
  padding:26px;
  border-radius:36px;
  background:rgba(255,255,255,.76);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.compare-table{
  overflow:hidden;
  border-radius:24px;
  border:1px solid #d8cab8;
  background:#fffdf9;
}
.compare-head,.compare-row{
  display:grid;
  grid-template-columns:1fr 1fr 1.2fr 1.1fr 1fr .6fr;
  gap:14px;
  align-items:center;
  padding:18px 20px;
}
.compare-head{
  background:#efe5d7;
  font-weight:900;
}
.compare-row{
  border-top:1px solid #eadfd1;
}
.compare-row strong{
  font-size:15px;
}
.mini-btn{
  padding:9px 12px;
  border-radius:999px;
  border:1px solid #d9c9b6;
  background:#faf4eb;
  color:#171512;
  cursor:pointer;
}

.dual-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.band{
  padding:30px;
  border-radius:36px;
  min-height:100%;
}
.band.dark{
  background:#171512;
  color:#fff;
  box-shadow:var(--shadow);
}
.band.dark p,.band.dark .eyebrow,.band.dark .band-list span{
  color:#d5c7b9;
}
.band.light{
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.band-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
  margin:22px 0 28px;
}
.band-list div{
  padding:16px;
  border-radius:20px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.08);
}
.band-list strong,.flow-list strong{
  display:block;
}
.band-list span,.flow-list span{
  display:block;
  margin-top:6px;
  font-size:14px;
}
.flow-list{
  list-style:none;
  margin:20px 0 0;
  padding:0;
  display:grid;
  gap:14px;
}
.flow-list li{
  display:grid;
  grid-template-columns:130px 1fr;
  gap:16px;
  padding:16px 0;
  border-top:1px solid #e7dbcc;
}
.flow-list li:first-child{border-top:0}

.support-wrap{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:18px;
}
.support-copy,.support-panel{
  border-radius:36px;
  background:rgba(255,255,255,.74);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.support-copy{padding:30px}
.support-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.support-panel{
  padding:18px;
  display:grid;
  gap:12px;
}
.support-panel article{
  padding:18px;
  border-radius:24px;
  background:#faf5ee;
  border:1px solid #e8dac9;
}
.support-panel strong{
  display:block;
  font-size:18px;
}
.support-panel span{
  display:block;
  margin-top:6px;
  color:#6b655e;
  font-weight:700;
}

.portal-page-inner,.portal-band-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:28px 30px;
  border-radius:34px;
  background:linear-gradient(180deg,#faf5ed 0%,#f5eee4 100%);
  border:1px solid #e0d0be;
  box-shadow:var(--shadow-soft);
}
.portal-copy{max-width:700px}

.faq-grid{
  display:grid;
  gap:14px;
  max-width:980px;
  margin:0 auto;
}
.faq-item{
  border-radius:24px;
  background:rgba(255,255,255,.78);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  padding:18px 20px;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  font-weight:900;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item p{margin-top:10px}

.site-footer{
  margin-top:30px;
  background:#141311;
  color:#fff;
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap:24px;
  padding:34px 0;
}
.footer-brand strong{font-size:28px}
.footer-brand p{max-width:620px;margin-top:10px;color:#cdbfae}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:flex-end;
}
.footer-links a{color:#efe7dc}
.footer-contact{
  padding:12px 18px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:transparent;
  color:#fff;
  cursor:pointer;
}

.contact-modal{
  display:none;
  position:fixed;
  inset:0;
  z-index:120;
  align-items:center;
  justify-content:center;
}
.contact-modal.open{display:flex}
.contact-mask{
  position:absolute;
  inset:0;
  background:rgba(17,16,14,.58);
  backdrop-filter:blur(8px);
}
.contact-panel{
  position:relative;
  z-index:2;
  width:min(440px, calc(100% - 26px));
  padding:28px;
  border-radius:32px;
  background:#fffbf6;
  border:1px solid #d9cab8;
  box-shadow:0 32px 80px rgba(0,0,0,.16);
  text-align:center;
}
.close-modal{
  position:absolute;
  right:14px;
  top:10px;
  border:0;
  background:transparent;
  font-size:34px;
  color:#1b1a18;
  cursor:pointer;
}
.contact-panel h2{
  margin:10px 0 18px;
  font-size:38px;
  line-height:1;
}
.qr-wrap{
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
}
.modal-links{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:16px;
}
.modal-links a{
  padding:10px 14px;
  border-radius:999px;
  background:#faf3e9;
  border:1px solid #e4d5c4;
}
.float-contact{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:90;
  padding:14px 18px;
  border-radius:999px;
  border:1px solid #dbcab6;
  background:#171512;
  color:#fff;
  font-weight:900;
  cursor:pointer;
  box-shadow:var(--shadow);
}
body.lock{overflow:hidden}

.portal-subpage .portal-hero{padding:48px 0 34px}
.portal-hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  align-items:center;
}
.portal-glass{
  padding:18px;
  border-radius:38px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  display:grid;
  gap:14px;
}
.portal-glass article{
  padding:18px;
  border-radius:24px;
  background:#faf5ed;
  border:1px solid #eadccf;
}
.portal-glass small{
  color:#7c7063;
  font-weight:900;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.portal-glass strong{
  display:block;
  margin-top:8px;
  color:#49453f;
}
.portal-cards-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.portal-box{
  padding:24px;
  border-radius:30px;
  background:rgba(255,255,255,.76);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.portal-box span{
  display:inline-block;
  font-size:12px;
  font-weight:900;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:#7e7164;
}
.portal-band-inner h2{margin:12px 0 10px;font-size:48px;line-height:.98;letter-spacing:-.05em}

.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .65s ease, transform .65s ease;
}
.reveal.visible{
  opacity:1;
  transform:none;
}

@media (max-width:1180px){
  .site-nav,.header-actions{display:none}
  .menu-toggle{display:block}
  .header-inner.open .site-nav{
    display:flex;
    position:absolute;
    top:74px;
    left:0;right:0;
    flex-direction:column;
    gap:0;
    padding:10px;
    border:1px solid var(--line);
    border-radius:22px;
    background:#fbf7f1;
    box-shadow:var(--shadow-soft);
  }
  .header-inner.open .site-nav a{
    padding:12px 14px;
    border-radius:14px;
  }
  .header-inner.open .header-actions{
    display:flex;
    position:absolute;
    top:410px;
    left:0;right:0;
    padding:12px;
    border:1px solid var(--line);
    border-radius:22px;
    background:#fbf7f1;
    box-shadow:var(--shadow-soft);
    gap:10px;
  }
  .hero-grid,.guide-grid,.support-wrap,.portal-hero-grid,.dual-grid,.product-row,.product-row.reverse{
    grid-template-columns:1fr;
  }
  .product-row.reverse .product-media,.product-row.reverse .product-copy{
    order:unset;
  }
  .entry-grid{
    grid-template-columns:1fr 1fr;
  }
  .entry-card.highlight{
    grid-column:span 2;
  }
  .compare-head{
    display:none;
  }
  .compare-row{
    grid-template-columns:1fr 1fr;
  }
  .hero-showcase,.hero-meta,.portal-cards-grid{
    grid-template-columns:1fr 1fr;
  }
  .showcase-main{
    min-height:420px;
  }
  .footer-inner,.portal-page-inner,.portal-band-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .footer-links{align-items:flex-start}
}
@media (max-width:760px){
  .container{width:min(var(--container), calc(100% - 24px))}
  .section-head h2,.hero-copy h1,.portal-intro h1{font-size:42px}
  .hero-actions,.support-actions,.header-inner.open .header-actions{flex-direction:column}
  .hero-grid,.hero-showcase,.hero-meta,.entry-grid,.guide-grid,.guide-cards,.dual-grid,.support-wrap,.portal-hero-grid,.portal-cards-grid,.compare-row,.band-list,.product-row,.product-row.reverse{
    grid-template-columns:1fr;
  }
  .entry-card.highlight{grid-column:auto}
  .product-media{min-height:280px}
  .showcase-main{min-height:320px}
  .showcase-main img{max-height:260px}
  .mini-card{grid-template-columns:1fr 96px;min-height:168px}
  .portal-band-inner h2{font-size:40px}
  .btn{width:100%}
  .footer-links{width:100%}
  .footer-links a,.footer-contact{width:100%;text-align:center}
}