:root{--bg:#132a3a;--deep:#0e202d;--ink:#f4efdf;--muted:#abbac2;--gold:#efc65d;--line:#ffffff20}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang TC",sans-serif}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:5px}.wrap{width:min(1120px,88%);margin:auto}.demo{background:var(--gold);color:var(--deep);text-align:center;font-size:12px;letter-spacing:.12em;padding:5px}header{border-bottom:1px solid var(--line)}nav{display:flex;align-items:center;justify-content:space-between;padding:22px 0}.brand{font-weight:750;letter-spacing:.08em}.brand small{color:var(--muted);font-weight:400;margin-left:14px}nav .links{display:flex;gap:28px;font-size:14px;color:var(--muted)}nav a:hover{color:var(--gold)}.hero{padding:78px 0 74px;position:relative}.eyebrow{font-size:12px;color:var(--gold);letter-spacing:.24em;margin:0 0 22px}.hero h1{margin:0;font-family:"Songti TC",serif;font-size:clamp(58px,9vw,112px);font-weight:900;line-height:1.15;letter-spacing:.08em;color:transparent;background:radial-gradient(circle,var(--ink) 1.25px,transparent 1.55px) 0 0/4px 4px;background-clip:text;-webkit-background-clip:text}.stamp{display:inline-block;margin-top:26px;background:var(--gold);color:var(--deep);border:4px double var(--deep);outline:1px solid var(--gold);padding:0 22px;font:bold 35px/1.55 "Songti TC",serif;letter-spacing:.3em;transform:rotate(-2deg)}.intro{font-size:19px;max-width:650px;margin:32px 0 25px;color:#e0e6e8}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;justify-content:center;align-items:center;padding:11px 23px;border:1px solid var(--gold);border-radius:4px;color:var(--gold);font-weight:650;font-size:14px}.btn.primary{background:var(--gold);color:var(--deep)}.btn:hover{filter:brightness(1.1);transform:translateY(-1px)}.hero-note{position:absolute;right:0;bottom:90px;color:var(--muted);font:italic 18px/1.6 "Songti TC",serif;border-left:1px solid var(--gold);padding-left:22px}.shelf{background:var(--deep);padding:56px 0 70px}.section-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:28px}h2{font:700 32px/1.4 "Songti TC",serif;margin:0} .section-head span{color:var(--muted);font-size:13px}.product{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);background:#172f40;border-radius:8px;overflow:hidden}.art{margin:0;background:#081e30}.art img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain}.art figcaption{padding:8px 16px;color:var(--muted);font-size:11px}.copy{padding:38px 38px 30px;display:flex;flex-direction:column;justify-content:center}.tag{color:var(--gold);font-size:11px;letter-spacing:.16em}.copy h3{font-size:clamp(25px,3vw,37px);letter-spacing:-.04em;margin:12px 0 5px}.lead{font-family:"Songti TC",serif;font-size:25px;margin:0 0 16px}.desc{color:var(--muted);font-size:14px;margin:0 0 20px}.specs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:24px}.specs span{border:1px solid var(--line);padding:3px 9px;font-size:11px;color:#ccd5d9}.purchase-note{font-size:12px;color:var(--muted);margin:14px 0 0}.next{display:flex;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:25px 3px;color:var(--muted);font-size:14px}.next .plus{font:30px serif;color:var(--gold)}.next strong{color:var(--ink);font-weight:500}.info{padding:70px 0 80px;display:grid;grid-template-columns:1fr 1.65fr;gap:70px}.info p{color:var(--muted);font-size:14px}.faq details{border-bottom:1px solid var(--line);padding:17px 0}.faq details:first-child{padding-top:0}summary{cursor:pointer;list-style:none;font-weight:550;display:flex;justify-content:space-between;gap:20px}summary::after{content:'＋';color:var(--gold)}details[open] summary::after{content:'−'}footer{border-top:1px solid var(--line);padding:25px 0;font-size:12px;color:var(--muted)}footer .wrap{display:flex;justify-content:space-between;gap:20px}footer a{color:var(--gold)}@media(max-width:760px){.wrap{width:88%}.brand small{display:none}nav .links{gap:17px}.hero{padding:48px 0}.hero-note{display:none}.intro{font-size:16px}.stamp{font-size:28px}.product{grid-template-columns:1fr}.copy{padding:26px}.info{grid-template-columns:1fr;gap:22px;padding:45px 0}.section-head{align-items:center}.section-head span{font-size:11px}footer .wrap{flex-direction:column;gap:6px}.shelf{padding-top:35px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.privacy{display:block;width:min(1120px,88%);margin:8px auto 0;color:var(--muted);font-size:12px}
.product + .product{margin-top:22px}

/* Compact catalog heading; product layout and image sizes retain the original design. */
.hero{padding:38px 0 36px}
.shop-title{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.hero .eyebrow{margin-bottom:18px}
.hero h1{font-size:clamp(48px,6vw,76px);line-height:1.2}
.hero .stamp{margin-top:0;padding:0 17px;font-size:27px;letter-spacing:.22em}
@media(max-width:760px){.hero{padding:28px 0}.shop-title{gap:16px}.hero h1{font-size:46px}.hero .stamp{font-size:20px;padding:0 11px}}

.hero h1.particle-heading{position:relative;width:min(680px,100%);aspect-ratio:4.3;flex:none;display:flex;align-items:center;background:none;color:var(--ink)}
#particle-sign{display:block;position:absolute;inset:0;width:100%;height:100%;cursor:pointer;touch-action:pan-y}
#particle-sign[hidden]{display:none}
#particle-sign:focus-visible{outline:2px solid var(--gold);outline-offset:5px;border-radius:4px}
.sign-ready .sign-fallback{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}