/* FILE: css/style.css | 完整交付，无省略 */
:root{
  --paper:#F5EFDF;--paper-deep:#EDE4CC;--ink:#26313B;--muted:#6E6A5E;--line:#D8CCAE;
  --ai:#2A4A73;--shu:#C0392B;--sabi:#8A9A5B;--nami:#7FA8B8;
  --max:1180px;--shadow:repeating-linear-gradient(45deg,rgba(38,49,59,.06) 0 1px,transparent 1px 7px);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Zen Kaku Gothic New",Arial,sans-serif;line-height:1.65}h1,h2,h3,h4{font-family:"Kaisei Opti",serif;line-height:1.15;margin:0 0 18px}h1{font-size:clamp(2.3rem,5vw,5rem)}h2{font-size:clamp(2rem,4vw,3.3rem)}h3{font-size:1.45rem}p{margin:0 0 16px}a{color:var(--nami);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button{cursor:pointer}.wrap{max-width:var(--max);margin:auto;padding:0 24px}.nav{position:sticky;top:0;z-index:50;background:rgba(245,239,223,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}.nav-inner{height:76px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:9px;color:var(--ink);font:1.5rem "Kaisei Opti",serif}.logo-wave{width:38px;height:28px}.links{display:flex;gap:19px;margin-left:auto}.links a{color:var(--ink);font-size:.92rem}.nav-actions{display:flex;align-items:center;gap:10px}.cart-link{position:relative;color:var(--ink)}.cart-badge{position:absolute;top:-11px;right:-10px;background:var(--shu);color:white;border-radius:50%;font-size:.68rem;min-width:19px;height:19px;display:grid;place-items:center}.hamb{display:none;border:0;background:none;font-size:1.6rem}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ai);border-radius:2px;padding:11px 17px;font-weight:700;text-decoration:none;transition:.2s}.btn-primary{background:var(--ai);color:var(--paper)}.btn-secondary{background:transparent;color:var(--shu);border-color:var(--shu)}.btn-danger{background:var(--shu);color:var(--paper);border-color:var(--shu)}.btn:hover{transform:translateY(-2px);filter:brightness(.94);text-decoration:none}.section{padding:90px 0;position:relative}.section.alt{background:var(--paper-deep)}.eyebrow{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.vertical{writing-mode:vertical-rl;letter-spacing:.2em;font-size:.72rem}.hanko{display:inline-grid;place-items:center;background:var(--shu);color:white;border:2px solid var(--shu);width:62px;height:62px;transform:rotate(-3deg);font-weight:800;letter-spacing:.08em}.wave-divider{height:70px;overflow:hidden;background:var(--paper)}.wave-divider svg{width:100%;height:100%}.paper-card{background:var(--paper-deep);border:1px solid var(--line);border-radius:2px;box-shadow:var(--shadow);position:relative;padding:28px}.paper-card:before{content:"";position:absolute;left:-1px;right:-1px;top:-1px;height:4px;background:var(--ai)}.paper-card:hover:before{background:var(--shu)}.paper-card:hover{transform:translateY(-4px);transition:.25s}.hero-wave{min-height:760px;display:flex;align-items:center;position:relative;overflow:hidden;background:var(--ai)}.hero-wave:before,.hero-wave:after{content:"";position:absolute;inset:0;background-image:var(--shadow);opacity:.5;pointer-events:none}.hero-wave:after{top:auto;height:55%;background:radial-gradient(ellipse at 20% 20%,transparent 0 45%,var(--paper) 46% 48%,transparent 49%),radial-gradient(ellipse at 60% 55%,transparent 0 44%,var(--nami) 45% 47%,transparent 48%);opacity:.9}.hero-content{position:relative;z-index:2;max-width:760px;color:var(--paper);padding:90px 24px}.hero-content h1{max-width:720px}.hero-content p{max-width:630px;font-size:1.15rem}.hero-vertical{position:absolute;left:7%;top:18%;z-index:3}.hero-stamp{position:absolute;right:7%;top:9%;z-index:4}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-actions .btn-secondary{color:var(--paper);border-color:var(--shu)}.scroll-shell{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0;position:relative}.scroll-track{display:flex;overflow:auto;scroll-snap-type:x mandatory;gap:0;padding-bottom:14px}.scroll-panel{min-width:72%;scroll-snap-align:start;padding:35px;border-right:1px solid var(--line);background:var(--paper-deep);min-height:300px}.scroll-panel img{width:100%;height:220px;object-fit:cover;border:1px solid var(--line);box-shadow:var(--shadow)}.scroll-controls{display:flex;justify-content:space-between;margin-top:10px}.triptych{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.triptych figure{margin:0;padding:18px;border-right:1px solid var(--ink)}.triptych figure:last-child{border-right:0}.triptych img{width:100%;height:300px;object-fit:cover}.registry{padding-top:22px;font-size:.86rem;border-top:1px solid var(--line);margin-top:18px}.quote{text-align:center;max-width:800px;margin:auto;font:1.6rem/1.5 "Kaisei Opti",serif}.lantern{background:var(--ai);color:var(--paper);border:3px solid var(--paper);outline:1px solid var(--ai);padding:55px;text-align:center;box-shadow:var(--shadow);position:relative}.lantern:before,.lantern:after{content:"";position:absolute;width:32px;height:32px;border:1px solid var(--line)}.lantern:before{top:10px;left:10px;border-right:0;border-bottom:0}.lantern:after{bottom:10px;right:10px;border-left:0;border-top:0}.subscribe-line{max-width:520px;margin:auto;display:flex;gap:8px}.subscribe-line input{flex:1;background:transparent;border:0;border-bottom:1px solid var(--ink);padding:10px}.hanging-feature{max-width:760px;margin:0 auto 70px;background:var(--paper-deep);border-left:8px solid var(--line);border-right:8px solid var(--line);padding:0 28px 32px;box-shadow:var(--shadow)}.hanging-feature img{width:100%;height:310px;object-fit:cover;display:block;margin:0 0 28px;border:1px solid var(--line)}.hanging-feature:nth-of-type(odd){transform:rotate(-.4deg)}.hanging-feature:nth-of-type(even){transform:rotate(.4deg)}.icon-row{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;text-align:center}.icon-dot{border-top:1px solid var(--line);padding:18px}.fan-wrap{padding-top:35px}.fan{display:flex;align-items:stretch;justify-content:center;min-height:320px;overflow:hidden}.fan-sector{width:24%;min-height:290px;padding:35px 22px;position:relative;border:1px solid var(--paper);color:var(--paper);transform-origin:bottom center;transition:.25s;box-shadow:var(--shadow);cursor:pointer}.fan-sector:nth-child(1){background:var(--ai);transform:rotate(-5deg);z-index:1}.fan-sector:nth-child(2){background:var(--nami);transform:rotate(-2deg);z-index:2}.fan-sector:nth-child(3){background:var(--sabi);transform:rotate(2deg);z-index:3}.fan-sector:nth-child(4){background:var(--shu);transform:rotate(5deg);z-index:1}.fan-sector.selected{transform:translateY(-15px) rotate(0);z-index:10}.fan-detail{max-width:820px;margin:25px auto 0}.fan-detail ul{padding-left:20px}.promo{background:var(--shu);color:white;padding:16px;text-align:center;margin:35px 0}.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;text-align:center}.trust div{padding:14px;border-top:1px solid var(--line)}.compare-scroll{overflow-x:auto}.compare{width:100%;border-collapse:collapse;min-width:820px}.compare th,.compare td{padding:13px;border-bottom:1px solid var(--line);text-align:left}.compare .highlight{background:rgba(42,74,115,.12)}.detail-head{padding:55px 0 25px}.detail-layout{display:grid;grid-template-columns:1fr 4fr 1fr;gap:24px}.rail{border-right:1px solid var(--line)}.rail div{writing-mode:vertical-rl;padding:15px;border-left:4px solid transparent}.rail .active{border-left-color:var(--shu)}.detail-main section{padding:25px 0 55px;border-bottom:1px solid var(--line)}.detail-main .main-image{width:100%;height:430px;object-fit:cover;cursor:zoom-in;border:1px solid var(--line);box-shadow:var(--shadow)}.thumbs{display:flex;gap:10px;margin-top:10px}.thumbs img{width:75px;height:55px;object-fit:cover;border:1px solid var(--line);cursor:pointer}.key-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line)}.key-grid div{padding:11px;border-bottom:1px solid var(--line)}.key-grid div:nth-child(odd){font-weight:700;background:rgba(216,204,174,.22)}.reviews-summary{font-size:2.5rem;font-family:"Kaisei Opti",serif}.dist-row{display:grid;grid-template-columns:30px 1fr 40px;align-items:center;gap:8px}.dist-bar{height:9px;background:var(--line)}.dist-bar span{display:block;height:100%;background:var(--ai)}.review{margin:20px 0;padding:20px;background:var(--paper-deep);border-top:3px solid var(--ai)}.annotation{position:sticky;top:100px;height:max-content;border-left:1px solid var(--line);padding-left:18px}.buy-screen{background:var(--shu);color:var(--paper);padding:60px 35px;text-align:center;box-shadow:var(--shadow)}.buy-screen .hanko{margin:auto;background:var(--paper);color:var(--shu);border-color:var(--paper)}.buy-screen .btn-secondary{color:var(--paper);border-color:var(--paper)}.buy-screen .btn-primary{background:var(--ink)}.delivery{color:var(--sabi);font-weight:800}.also{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}.also a{color:var(--ink)}.cart-list{padding-bottom:150px}.cart-row{display:grid;grid-template-columns:90px 1.5fr 80px 90px 100px 80px;gap:14px;align-items:center;border-bottom:1px solid var(--line);padding:18px 0}.cart-row img{width:80px;height:55px;object-fit:cover}.qty{display:flex;align-items:center;gap:4px}.qty button{width:26px;height:26px;border:1px solid var(--line);background:var(--paper)}.qty input{width:40px;text-align:center;border:1px solid var(--line);background:var(--paper)}.sticky-summary{position:fixed;left:0;right:0;bottom:0;background:var(--paper-deep);border-top:4px solid var(--ai);z-index:40;padding:13px 20px;box-shadow:0 -4px 20px rgba(38,49,59,.12)}.summary-inner{max-width:var(--max);margin:auto;display:flex;align-items:center;gap:25px}.summary-values{display:flex;gap:18px}.summary-values strong{display:block}.summary-spacer{flex:1}.checkout{max-width:560px;margin:auto}.notice{background:var(--paper-deep);border-left:5px solid var(--shu);padding:18px;margin:20px 0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px;margin:10px 0}.field.full{grid-column:1/-1}.field input,.field select,.field textarea{border:1px solid var(--line);background:var(--paper);padding:11px}.radio-list{display:grid;gap:8px}.success{text-align:center;padding:70px 0}.success .hanko{margin:0 auto 25px}.legal{max-width:820px;margin:auto}.legal section{margin:30px 0}.legal h2{font-size:1.5rem}.about-note{max-width:800px;margin:0 auto;padding:35px 0;border-bottom:1px solid var(--line)}.about-note .date{display:inline-block;background:var(--paper-deep);padding:4px 9px}.values{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.faq details{border-top:1px solid var(--line);background:var(--paper-deep)}.faq summary{padding:20px;cursor:pointer;font-family:"Kaisei Opti",serif}.faq details p{padding:0 20px 20px}.letter{max-width:560px;margin:auto;padding:50px;background:var(--paper-deep);border:1px solid var(--line);box-shadow:var(--shadow);position:relative}.footer{background:var(--ink);color:var(--paper);padding:60px 0 25px}.footer a{color:var(--paper)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.footer-bottom{border-top:1px solid rgba(245,239,223,.25);margin-top:35px;padding-top:18px;font-size:.85rem;display:flex;gap:20px;flex-wrap:wrap}.acceptable{font-size:.78rem;margin-top:15px}.cookie{position:fixed;left:20px;right:20px;bottom:20px;z-index:100;background:var(--paper-deep);border-top:4px solid var(--nami);padding:14px 18px;box-shadow:0 4px 24px rgba(38,49,59,.18);display:flex;gap:15px;align-items:center}.cookie p{margin:0;flex:1}.cookie-actions{display:flex;gap:8px}.modal{position:fixed;inset:0;background:rgba(38,49,59,.8);display:none;place-items:center;z-index:110;padding:20px}.modal.open{display:grid}.modal img{max-width:90vw;max-height:85vh;border:4px solid var(--paper)}.modal button{position:absolute;top:20px;right:20px}.muted{color:var(--muted)}.center{text-align:center}.mt{margin-top:30px}.mb{margin-bottom:30px}.error{color:var(--shu);font-size:.9rem}
@media (max-width:900px){.links{display:none}.hamb{display:block;margin-left:auto}.nav-actions{display:none}.nav.open .links{display:flex;position:absolute;left:0;right:0;top:76px;background:var(--paper);padding:20px;flex-direction:column;border-bottom:1px solid var(--line)}.nav.open .nav-actions{display:flex;position:absolute;right:20px;top:340px}.detail-layout{grid-template-columns:1fr}.rail,.annotation{display:none}.fan{flex-direction:column;align-items:stretch}.fan-sector{width:100%;min-height:0;transform:none!important}.fan-sector.selected{transform:none!important}.triptych{grid-template-columns:1fr}.triptych figure{border-right:0;border-bottom:1px solid var(--ink)}.icon-row,.trust{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cart-row{grid-template-columns:70px 1fr 80px 90px}.cart-row .unit,.cart-row .remove{display:none}}
@media (max-width:640px){.wrap{padding:0 16px}.section{padding:65px 0}.hero-wave{min-height:650px}.hero-vertical{left:14px}.hero-stamp{right:18px}.hero-content{padding:100px 16px 70px}.scroll-panel{min-width:100%}.scroll-panel img{height:190px}.icon-row,.trust,.values,.also,.form-grid,.footer-grid{grid-template-columns:1fr}.summary-inner{flex-wrap:wrap;gap:8px}.summary-values{gap:10px;font-size:.8rem}.summary-spacer{display:none}.sticky-summary .btn{margin-left:auto}.cookie{left:10px;right:10px;bottom:10px;display:block}.cookie-actions{margin-top:10px}.cart-row{grid-template-columns:60px 1fr 75px}.cart-row .price,.cart-row .subtotal{display:none}.key-grid{grid-template-columns:1fr}.subscribe-line{display:block}.subscribe-line button{width:100%;margin-top:8px}}
@media (prefers-reduced-motion:no-preference){.wave-divider svg{animation:drift 120s linear infinite}.hanko{animation:none}.reveal{opacity:0;transform:translateY(15px)}.reveal.in{animation:inkAppear .8s ease forwards}.hanko.reveal.in{animation:stamp .3s ease forwards}.paper-card,.fan-sector{transition:transform .25s ease,background .25s ease}@keyframes drift{to{transform:translateX(-10%)}}@keyframes inkAppear{to{opacity:1;transform:none}}@keyframes stamp{0%{opacity:0;transform:scale(1.5) rotate(8deg)}100%{opacity:1;transform:scale(1) rotate(-3deg)}}}
:focus-visible{outline:2px solid var(--ai);outline-offset:3px}