/* =========================================================
   梦境系列 · 亚述科技官方网站
   深蓝梦境星夜 · 极致精细版
   ========================================================= */

:root{
  color-scheme: dark;
  --bg-0:#02040e;
  --bg-1:#050b1e;
  --bg-2:#08122b;
  --panel:rgba(10,18,40,.66);
  --panel-solid:#0a1327;
  --line:rgba(120,160,240,.16);
  --line-strong:rgba(140,180,255,.32);
  --ink:#eaf1ff;
  --ink-soft:rgba(210,222,248,.72);
  --ink-dim:rgba(168,186,224,.5);
  --gold:#f4d67a;
  --gold-soft:#e9c56a;
  --cyan:#7fe0e8;
  --violet:#b7a0ff;
  --blue:#6ea8ff;
  --radius:20px;
  --maxw:1200px;
  --serif:"Noto Serif SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --display:"Cormorant Garamond",var(--serif);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(60,90,180,.35), transparent 60%),
    radial-gradient(900px 600px at 8% 12%, rgba(90,70,170,.22), transparent 55%),
    linear-gradient(180deg,var(--bg-1) 0%, var(--bg-0) 40%, #02030a 100%);
  overflow-x:hidden;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* ---------- 背景层 ---------- */
#starfield{position:fixed;inset:0;width:100%;height:100%;z-index:-2;pointer-events:none}
.aurora-veil{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background:
    radial-gradient(600px 400px at 15% 20%, rgba(90,120,255,.10), transparent 70%),
    radial-gradient(700px 500px at 85% 65%, rgba(150,110,220,.10), transparent 70%),
    radial-gradient(500px 500px at 60% 100%, rgba(80,200,200,.07), transparent 70%);
  animation:veil 22s ease-in-out infinite alternate;
}
@keyframes veil{from{transform:translate3d(0,0,0)}to{transform:translate3d(0,-2%,0)}}

/* ---------- 通用容器 ---------- */
.section{max-width:var(--maxw);margin:0 auto;padding:120px 28px}
.section-head{max-width:760px;margin:0 auto 64px;text-align:center}
.eyebrow{
  font-family:var(--display);
  letter-spacing:.42em;text-transform:uppercase;
  font-size:13px;font-weight:600;color:var(--gold-soft);
  margin-bottom:18px;padding-left:.42em;
}
h2{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(30px,4.4vw,50px);line-height:1.2;
  letter-spacing:.02em;
  background:linear-gradient(180deg,#ffffff 0%, #cfe0ff 55%, #9fb8ee 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{margin-top:22px;color:var(--ink-soft);font-size:clamp(15px,1.5vw,17px);font-weight:300}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px clamp(20px,4vw,44px);
  transition:background .4s ease, backdrop-filter .4s ease, padding .4s ease, border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(4,8,20,.72);
  backdrop-filter:blur(16px) saturate(1.1);
  border-bottom:1px solid var(--line);
  padding-top:14px;padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:13px}
.brand-mark{
  width:auto;height:42px;flex:0 0 auto;display:block;object-fit:contain;
  filter:drop-shadow(0 2px 8px rgba(80,140,255,.4));
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.brand:hover .brand-mark{transform:rotate(6deg) scale(1.05)}
.footer-brand .brand-mark{width:auto;height:50px}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-family:var(--serif);font-weight:700;font-size:18px;letter-spacing:.1em;white-space:nowrap;color:#fff}
.brand-series{font-weight:500;color:var(--gold-soft);margin-left:.35em}
.brand-text em{font-style:normal;font-family:var(--display);font-size:11px;letter-spacing:.4em;color:var(--ink-dim);margin-top:6px}
.nav-links{display:flex;gap:34px}
.nav-links a{font-size:14.5px;color:var(--ink-soft);position:relative;padding:4px 0;transition:color .3s}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);transition:width .35s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}

/* ---------- 首屏 Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center right;
  transform:scale(1.06);animation:heroDrift 30s ease-in-out infinite alternate;
}
@keyframes heroDrift{from{transform:scale(1.06) translateY(0)}to{transform:scale(1.12) translateY(-2%)}}
.hero-fade{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(2,4,14,.94) 0%, rgba(2,4,14,.7) 34%, rgba(2,4,14,.15) 62%, rgba(2,4,14,.35) 100%),
    linear-gradient(0deg, var(--bg-0) 2%, transparent 30%);
}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;width:100%;padding:0 clamp(20px,4vw,44px)}
.hero-kicker{
  font-family:var(--display);letter-spacing:.34em;text-transform:uppercase;
  font-size:14px;color:var(--gold-soft);margin-bottom:26px;
  opacity:0;animation:rise .9s .1s forwards;
}
.hero-title{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(42px,7.4vw,88px);line-height:1.08;letter-spacing:.02em;
  text-shadow:0 4px 40px rgba(10,20,60,.6);
}
.hero-title span{display:block;opacity:0;animation:rise 1s forwards}
.hero-title span:nth-child(1){animation-delay:.18s;
  background:linear-gradient(180deg,#fff 0%, #dfeaff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-title span:nth-child(2){animation-delay:.34s;
  background:linear-gradient(100deg,#f7e3a6 0%, #f4d67a 30%, #fff5d6 60%, #f4d67a 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{
  margin-top:28px;max-width:560px;font-size:clamp(15px,1.6vw,18px);
  color:rgba(224,232,252,.82);font-weight:300;line-height:1.9;
  opacity:0;animation:rise 1s .5s forwards;
}
.hero-cta{margin-top:40px;display:flex;gap:18px;flex-wrap:wrap;opacity:0;animation:rise 1s .68s forwards}
.hero-meta{
  margin-top:46px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  color:var(--ink-dim);font-size:13.5px;letter-spacing:.08em;
  opacity:0;animation:rise 1s .86s forwards;
}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--gold);opacity:.6;box-shadow:0 0 8px var(--gold)}
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;border-radius:100px;font-size:15px;font-weight:500;
  letter-spacing:.04em;cursor:pointer;transition:transform .3s, box-shadow .3s, background .3s;
  border:1px solid transparent;
}
.btn-primary{
  color:#1a1405;
  background:linear-gradient(135deg,#ffe9a8,#f4d67a 45%,#e8b955);
  box-shadow:0 10px 30px rgba(230,190,90,.28), inset 0 1px 0 rgba(255,255,255,.6);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(230,190,90,.42)}
.btn-ghost{
  color:var(--ink);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);backdrop-filter:blur(6px);
}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--gold-soft);color:#fff;background:rgba(255,255,255,.06)}

.scroll-hint{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);z-index:3;
  width:26px;height:42px;border:1px solid var(--line-strong);border-radius:14px;display:flex;justify-content:center;padding-top:8px}
.scroll-hint span{width:4px;height:8px;border-radius:2px;background:var(--gold);animation:scroll 1.8s ease-in-out infinite}
@keyframes scroll{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}100%{opacity:0;transform:translateY(12px)}}

/* ---------- 梦境神殿 · 四扇门 ---------- */
.portals{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.portal{
  position:relative;cursor:pointer;text-align:center;
  padding:14px 14px 26px;border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(18,28,56,.5), rgba(8,14,32,.35));
  border:1px solid var(--line);
  transition:transform .5s cubic-bezier(.2,.7,.2,1), box-shadow .5s, border-color .5s;
  overflow:hidden;
}
.portal::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius);opacity:0;transition:opacity .5s;
  background:radial-gradient(120% 80% at 50% 0%, rgba(140,180,255,.16), transparent 60%);
}
.portal:hover,.portal:focus-visible{
  transform:translateY(-12px);border-color:var(--line-strong);outline:none;
  box-shadow:0 30px 60px -20px rgba(20,40,110,.8), 0 0 0 1px rgba(150,190,255,.14);
}
.portal:hover::before,.portal:focus-visible::before{opacity:1}
.portal-art{position:relative;padding:6px 20px 4px}
.portal-art img{
  width:100%;filter:drop-shadow(0 18px 30px rgba(4,10,30,.55));
  transition:transform .6s cubic-bezier(.2,.7,.2,1);
}
.portal:hover .portal-art img{transform:translateY(-6px) scale(1.03)}
.portal-glow{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
  width:62%;height:60%;border-radius:50%;z-index:-0;
  background:radial-gradient(circle, rgba(150,200,255,.5), transparent 68%);
  filter:blur(22px);opacity:.4;transition:opacity .5s;
}
.portal:hover .portal-glow{opacity:.85}
.portal[data-game="painter"] .portal-glow{background:radial-gradient(circle, rgba(255,180,140,.45), transparent 68%)}
.portal[data-game="mender"] .portal-glow{background:radial-gradient(circle, rgba(120,180,255,.55), transparent 68%)}
.portal[data-game="imprinter"] .portal-glow{background:radial-gradient(circle, rgba(150,210,255,.5), transparent 68%)}
.portal[data-game="keeper"] .portal-glow{background:radial-gradient(circle, rgba(245,220,150,.42), transparent 68%)}
.portal-caption{position:relative;margin-top:12px}
.portal-caption h3{font-family:var(--serif);font-weight:700;font-size:21px;letter-spacing:.04em;color:#fff}
.portal-tag{margin-top:5px;font-size:13.5px;color:var(--gold-soft);letter-spacing:.06em}
.portal-slogan{margin-top:12px;font-size:12.5px;color:var(--ink-dim);font-style:italic;font-family:var(--serif);min-height:2.4em}
.portal-more{
  display:inline-block;margin-top:14px;font-size:12.5px;letter-spacing:.14em;
  color:var(--cyan);opacity:.75;transition:opacity .3s, letter-spacing .3s;
}
.portal:hover .portal-more{opacity:1;letter-spacing:.2em}
.is-flagship::after{
  content:"系列主力";position:absolute;top:14px;right:14px;z-index:3;
  font-size:11px;letter-spacing:.1em;padding:4px 10px;border-radius:100px;
  color:#1a1405;background:linear-gradient(135deg,#ffe9a8,#e8b955);
  box-shadow:0 4px 12px rgba(230,190,90,.35);
}

/* ---------- 七大世界 ---------- */
.world-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.world-card{
  position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/5;
  border:1px solid var(--line);
  transition:transform .5s cubic-bezier(.2,.7,.2,1), box-shadow .5s;
}
.world-card:first-child{grid-column:1 / -1;aspect-ratio:24/9}
.world-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.world-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg, rgba(2,5,16,.9) 0%, rgba(2,5,16,.1) 45%, transparent 70%)}
.world-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -22px rgba(10,30,90,.9);border-color:var(--line-strong)}
.world-card:hover img{transform:scale(1.08)}
.world-card figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px 20px;text-align:left}
.world-card figcaption b{display:block;font-family:var(--serif);font-size:18px;color:#fff;letter-spacing:.06em}
.world-card figcaption span{display:block;margin-top:4px;font-size:12.5px;color:rgba(220,230,255,.7);font-weight:300}
.world-card:first-child figcaption b{font-size:24px}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.about-copy .eyebrow{text-align:left}
.about-copy h2{text-align:left}
.about-copy p{margin-top:20px;color:var(--ink-soft);font-weight:300;font-size:16px;line-height:1.95}
.about-stats{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.about-stats li{
  padding:22px 24px;border-radius:16px;border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(8px);
}
.about-stats b{display:block;font-family:var(--serif);font-size:38px;font-weight:700;
  background:linear-gradient(135deg,#f7e3a6,#f4d67a);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-stats span{font-size:13.5px;color:var(--ink-dim);letter-spacing:.06em}
.about-visual{position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:360px}
.mascot-stage{position:relative;width:340px;height:400px;display:flex;justify-content:center;align-items:flex-end}
.mascot-img{
  position:relative;z-index:2;height:390px;width:auto;max-width:340px;object-fit:contain;
  filter:drop-shadow(0 24px 34px rgba(4,10,34,.6));
  animation:float 7s ease-in-out infinite;
}
.mascot-halo{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);z-index:0;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle, rgba(120,160,255,.4) 0%, rgba(90,120,220,.16) 42%, transparent 68%);
  filter:blur(6px);animation:pulse 6s ease-in-out infinite;
}
.mascot-ring{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);z-index:1;
  width:300px;height:300px;border-radius:50%;border:1px solid rgba(160,200,255,.28);
  animation:spin 22s linear infinite;
}
.mascot-ring.ring2{width:360px;height:360px;border:1px dashed rgba(244,214,122,.3);animation:spin 34s linear infinite reverse}
.mascot-caption{margin-top:14px;text-align:center}
.mascot-caption b{display:block;font-family:var(--serif);font-size:17px;color:#fff;letter-spacing:.08em}
.mascot-caption span{display:block;margin-top:6px;font-size:13px;color:var(--ink-dim);font-weight:300}
@keyframes pulse{0%,100%{opacity:.6}50%{opacity:1}}
.orb{
  width:300px;height:300px;border-radius:50%;position:relative;
  background:
    radial-gradient(circle at 34% 30%, #ffffff 0%, #bfe3ff 12%, #5f8fe6 40%, #223a86 72%, #0b1740 100%);
  box-shadow:0 0 70px rgba(90,140,255,.4), inset -20px -30px 70px rgba(2,6,26,.7), inset 12px 14px 40px rgba(255,255,255,.25);
  animation:float 7s ease-in-out infinite;
}
.orb::before{
  content:"";position:absolute;inset:-40px;border-radius:50%;
  border:1px solid rgba(160,200,255,.25);animation:spin 18s linear infinite;
}
.orb::after{
  content:"";position:absolute;inset:-70px;border-radius:50%;
  border:1px dashed rgba(244,214,122,.28);animation:spin 30s linear infinite reverse;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 服务能力 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.service-card{
  padding:28px 24px;border-radius:16px;border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(8px);
  transition:transform .4s, border-color .4s, background .4s;
}
.service-card:hover{transform:translateY(-6px);border-color:var(--line-strong);background:rgba(16,26,52,.7)}
.service-card h4{font-family:var(--serif);font-size:17px;font-weight:600;color:#fff;letter-spacing:.04em}
.service-card h4::before{
  content:"";display:block;width:26px;height:2px;margin-bottom:14px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.service-card p{margin-top:10px;font-size:13.5px;color:var(--ink-dim);font-weight:300;line-height:1.8}

/* ---------- 联系 ---------- */
.contact-card{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:56px clamp(28px,5vw,60px);border-radius:26px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(600px 300px at 90% 10%, rgba(90,120,220,.16), transparent 70%),
    var(--panel);
  backdrop-filter:blur(12px);
}
.contact-left .eyebrow{text-align:left}
.contact-left h2{text-align:left}
.contact-left p{margin-top:18px;color:var(--ink-soft);font-weight:300}
.contact-right{display:flex;flex-direction:column;gap:16px}
.contact-item{display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:18px 22px;border-radius:14px;border:1px solid var(--line);background:rgba(6,12,28,.5)}
.contact-item span{font-size:13px;color:var(--ink-dim);letter-spacing:.08em}
.contact-item b{font-size:15.5px;color:#fff;font-weight:500;letter-spacing:.02em}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);margin-top:60px;background:rgba(2,5,14,.6)}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:48px 28px;
  display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:start}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand strong{font-family:var(--serif);font-size:17px;letter-spacing:.08em;white-space:nowrap}
.footer-brand p{font-size:12.5px;color:var(--ink-dim);margin-top:4px;white-space:nowrap}
.footer-info .statement{font-size:13px;color:var(--ink-dim);line-height:1.9;font-weight:300}
.footer-info .record{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:var(--ink-dim)}
.footer-info .record a{color:var(--ink-soft);transition:color .3s}
.footer-info .record a:hover{color:var(--gold-soft)}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  padding:24px;visibility:hidden;opacity:0;transition:opacity .4s, visibility .4s}
.modal.open{visibility:visible;opacity:1}
.modal-backdrop{position:absolute;inset:0;background:rgba(2,4,12,.78);backdrop-filter:blur(10px)}
.modal-panel{
  position:relative;z-index:2;width:min(920px,100%);max-height:88vh;overflow:auto;
  display:grid;grid-template-columns:300px 1fr;gap:0;
  border-radius:24px;border:1px solid var(--line-strong);
  background:linear-gradient(180deg, rgba(14,22,46,.98), rgba(7,12,28,.98));
  box-shadow:0 40px 100px -30px rgba(0,0,0,.9);
  transform:translateY(24px) scale(.98);transition:transform .45s cubic-bezier(.2,.8,.2,1);
}
.modal.open .modal-panel{transform:none}
.modal-close{position:absolute;top:14px;right:16px;z-index:5;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:rgba(10,16,34,.7);color:var(--ink-soft);font-size:22px;cursor:pointer;
  transition:transform .3s, color .3s, border-color .3s;line-height:1}
.modal-close:hover{transform:rotate(90deg);color:#fff;border-color:var(--gold-soft)}
.modal-art{position:relative;display:flex;align-items:center;justify-content:center;padding:34px 20px;
  background:radial-gradient(120% 90% at 50% 20%, rgba(90,130,230,.18), transparent 60%);
  border-right:1px solid var(--line)}
.modal-art img{width:78%;filter:drop-shadow(0 20px 36px rgba(4,10,34,.7))}
.modal-body{padding:40px 40px 36px}
.modal-logo{
  display:block;width:auto;height:78px;max-width:min(340px,100%);object-fit:contain;object-position:left center;
  box-sizing:border-box;margin-bottom:14px;
}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.modal-tag{font-family:var(--display);letter-spacing:.2em;text-transform:uppercase;font-size:12px;color:var(--gold-soft)}
.modal-body h3{font-family:var(--serif);font-size:30px;font-weight:700;color:#fff;margin-top:8px;letter-spacing:.03em}
.modal-slogan{margin-top:10px;font-family:var(--serif);font-style:italic;color:var(--cyan);font-size:15px}
.modal-desc{margin-top:20px;color:var(--ink-soft);font-weight:300;font-size:15px;line-height:1.95}
.modal-facts{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.modal-facts .fact{display:flex;gap:12px;font-size:13.5px}
.modal-facts .fact b{flex:0 0 76px;color:var(--ink-dim);font-weight:400;letter-spacing:.06em}
.modal-facts .fact span{color:var(--ink-soft)}
.modal-play{margin-top:28px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;gap:20px;align-items:center}
.qr{flex:0 0 auto}
.qr-img{width:122px;height:122px;border-radius:14px;background:#fff;padding:7px;display:block;
  box-shadow:0 10px 24px rgba(0,0,0,.4)}
.modal-play-copy b{display:block;color:#fff;font-size:15px;font-weight:500}
.modal-play-copy p{margin-top:6px;color:var(--ink-dim);font-size:13px;font-weight:300;line-height:1.7}
.qr-hint{display:inline-block;margin-top:10px;font-size:12px;color:var(--gold-soft);letter-spacing:.06em}

/* ---------- 滚动进入动画 ---------- */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .nav-links{display:none}
  .portals{grid-template-columns:repeat(2,1fr)}
  .world-grid{grid-template-columns:repeat(2,1fr)}
  .world-card:first-child{grid-column:1 / -1;aspect-ratio:21/9}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .about-visual{min-height:300px}
  .contact-card{grid-template-columns:1fr;gap:28px}
  .footer-inner{grid-template-columns:1fr;gap:26px}
  .modal-panel{grid-template-columns:1fr;max-height:92vh}
  .modal-art{border-right:none;border-bottom:1px solid var(--line);padding:24px}
  .modal-art img{width:52%}
}
@media (max-width:560px){
  .section{padding:80px 20px}
  .portals{grid-template-columns:1fr;max-width:360px;margin:0 auto}
  .world-grid{grid-template-columns:1fr}
  .world-card{aspect-ratio:3/2}
  .world-card:first-child{aspect-ratio:16/9}
  .service-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr 1fr}
  .hero-cta{flex-direction:column;align-items:flex-start}
  .btn{width:auto}
  .modal-body{padding:28px 24px}
}