.top-nav{z-index:40;height:var(--nav-h);padding:0 var(--space-5);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);background:#e8f0ecb8;justify-content:space-between;align-items:center;display:flex;position:fixed;inset:0 0 auto}.brand{align-items:center;gap:var(--space-2);display:flex}.brand-mark{background:var(--jade);color:#f4faf7;width:36px;height:36px;font-family:var(--font-display);border-radius:50%;place-items:center;font-size:1rem;font-weight:700;display:grid}.brand-name{font-family:var(--font-display);letter-spacing:.12em;color:var(--jade-deep);font-size:1.25rem;font-weight:700}.top-nav-links{gap:var(--space-1);display:none}.nav-link{color:var(--ink-muted);transition:color .25s var(--ease-out), background .25s var(--ease-out);border-radius:999px;padding:.45rem .85rem;font-size:.92rem}.nav-link:hover{color:var(--jade-deep)}.nav-link.active{color:var(--jade-deep);background:var(--surface-strong)}.bottom-nav{z-index:40;height:var(--bottom-nav-h);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);background:#f7f3ebeb;grid-template-columns:repeat(5,1fr);display:grid;position:fixed;inset:auto 0 0}.bottom-link{color:var(--ink-muted);place-items:center;font-size:.75rem;display:grid}.bottom-link.active{color:var(--jade);font-weight:600}@media (width>=860px){.top-nav-links{display:flex}.bottom-nav{display:none}.page{padding-bottom:var(--space-8)}}.steam-atmosphere{pointer-events:none;position:absolute;inset:0;overflow:hidden}.steam-canvas{width:100%;height:100%;display:block}.steam-mist{background:radial-gradient(80% 50% at 50% 20%,#ffffff73,#0000 70%),radial-gradient(60% 40% at 20% 80%,#5a9a8633,#0000 60%);animation:18s ease-in-out infinite alternate 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h3{color:var(--jade-deep);margin-bottom:var(--space-2);font-size:1.75rem}.category-ox{color:var(--clay);margin-bottom:var(--space-3);border-bottom:1px solid color-mix(in srgb, var(--clay) 40%, transparent);font-size:.8rem;display:inline-block}.category-sum{color:var(--ink-muted);font-size:.95rem;line-height:1.65}.tea-card{border-radius:var(--radius-md);background:var(--surface-strong);border:1px solid var(--line);overflow:hidden}.tea-card-link{grid-template-columns:8px 1fr;min-height:120px;display:grid}.tea-card-swatch{width:8px}.tea-card-body{padding:var(--space-4)}.tea-card-body h3{margin-bottom:var(--space-2);font-size:1.2rem}.tea-card-body p{color:var(--ink-muted);margin-bottom:var(--space-3);font-size:.85rem;line-height:1.5}.tea-card-aroma{color:var(--jade);font-size:.8rem}.explore-head{margin-bottom:var(--space-6)}.explore-head h1{color:var(--jade-deep);margin-bottom:var(--space-3);font-size:clamp(2rem,5vw,2.8rem)}.explore-head p{color:var(--ink-muted);font-size:1.05rem}.category-grid{gap:var(--space-4);grid-template-columns:1fr;display:grid}@media (width>=700px){.category-grid{grid-template-columns:repeat(2,1fr)}}@media (width>=1000px){.category-grid{grid-template-columns:repeat(3,1fr)}}.back-link{color:var(--jade);margin-bottom:var(--space-4);font-size:.9rem}.explore-cat-banner{padding:var(--space-6);border-radius:var(--radius-lg);background:linear-gradient(135deg, color-mix(in srgb, var(--cat-color) 18%, white), var(--surface));border:1px solid var(--line);margin-bottom:var(--space-5);position:relative;overflow:hidden}.explore-cat-banner:after{content:"";background:var(--cat-color);opacity:.15;border-radius:50%;width:200px;height:200px;position:absolute;bottom:-60px;right:-40px}.explore-en{letter-spacing:.16em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-2);font-size:.75rem}.explore-cat-banner h2{margin-bottom:var(--space-3);font-size:2rem}.explore-cat-banner p{color:var(--ink-muted);z-index:1;max-width:36rem;line-height:1.7;position:relative}.process-list{gap:var(--space-2);margin:var(--space-4) 0 0;z-index:1;flex-wrap:wrap;padding:0;list-style:none;display:flex;position:relative}.process-list li{background:var(--surface-strong);color:var(--jade-deep);border-radius:999px;padding:.35rem .75rem;font-size:.8rem}.tea-grid{gap:var(--space-3);grid-template-columns:1fr;display:grid}@media (width>=640px){.tea-grid{grid-template-columns:repeat(2,1fr)}}.tea-detail{position:relative}.tea-detail-glow{background:radial-gradient(ellipse at 30% 40%, color-mix(in srgb, var(--tea-color) 35%, transparent), transparent 70%);pointer-events:none;z-index:0;height:280px;position:absolute;inset:-10% -20% auto}.tea-detail>:not(.tea-detail-glow){z-index:1;position:relative}.tea-detail-hero{gap:var(--space-4);margin:var(--space-4) 0 var(--space-5);align-items:flex-start;display:flex}.tea-detail-swatch{border-radius:999px;align-self:stretch;width:10px;min-height:88px}.tea-detail-cat{color:var(--clay);margin-bottom:var(--space-2);font-size:.85rem}.tea-detail-hero h1{color:var(--jade-deep);margin-bottom:var(--space-2);font-size:clamp(2rem,5vw,2.8rem)}.tea-detail-origin{color:var(--ink-muted);max-width:36rem;line-height:1.6}.tea-detail-liquor{border-radius:var(--radius-md);height:56px;margin-bottom:var(--space-6);background:var(--liquor);border:1px solid var(--line);position:relative;overflow:hidden}.liquor-wave{background:repeating-linear-gradient(-12deg,#0000,#0000 18px,#ffffff2e 18px 28px);width:160%;position:absolute;inset:0}.detail-grid{gap:var(--space-4);margin-bottom:var(--space-6);grid-template-columns:1fr;display:grid}@media (width>=700px){.detail-grid{grid-template-columns:repeat(2,1fr)}}.detail-grid article{padding:var(--space-4);border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line)}.detail-grid h2{color:var(--jade);margin-bottom:var(--space-2);font-size:.95rem}.detail-grid p{color:var(--ink);line-height:1.7}.brew-params,.tips-block{padding:var(--space-5);border-radius:var(--radius-lg);background:var(--surface-strong);border:1px solid var(--line);margin-bottom:var(--space-4)}.brew-params h2,.tips-block h2{margin-bottom:var(--space-4);font-size:1.2rem}.param-row{gap:var(--space-3);grid-template-columns:repeat(3,1fr);display:grid}.param-row span{color:var(--ink-muted);margin-bottom:var(--space-1);font-size:.75rem;display:block}.param-row strong{font-family:var(--font-display);color:var(--jade-deep);font-size:1rem;font-weight:600}.param-note{margin-top:var(--space-4);color:var(--ink-muted);font-size:.85rem}.tips-block ul{color:var(--ink);margin:0;padding-left:1.1rem;line-height:1.8}@media (width<=520px){.param-row{grid-template-columns:1fr}}.tea-pour{align-items:center;gap:var(--space-4);flex-direction:column;display:flex}.tea-pour-cup{width:140px;position:relative}.tea-pour-rim{background:linear-gradient(90deg,#d8cfc0,#f5f0e6,#d8cfc0);border-radius:999px;height:10px;box-shadow:0 2px #0000000f}.tea-pour-body{background:#ffffff59;border:2px solid #1a242126;border-top:none;border-radius:0 0 42% 42%;height:150px;margin:-2px 10px 0;position:relative;overflow:hidden}.tea-pour-liquor{opacity:.85;border-radius:0 0 40% 40%;position:absolute;bottom:0;left:0;right:0}.tea-pour-steam{justify-content:space-between;height:40%;display:flex;position:absolute;inset:12% 30% auto}.tea-pour-steam span{background:#ffffff8c;border-radius:999px;width:8px;animation:2.4s ease-in-out infinite steam-rise}.tea-pour-steam span:nth-child(2){align-self:flex-end;height:70%;animation-delay:.4s}.tea-pour-steam span:nth-child(3){animation-delay:.8s}@keyframes steam-rise{0%,to{opacity:.2;transform:translateY(10px)scaleY(.6)}50%{opacity:.7;transform:translateY(-8px)scaleY(1)}}.tea-pour-label{color:var(--ink-muted);letter-spacing:.08em;font-size:.85rem}@media (prefers-reduced-motion:reduce){.tea-pour-steam span{opacity:.4;animation:none}}.brew-head{margin-bottom:var(--space-5)}.brew-head h1{color:var(--jade-deep);margin-bottom:var(--space-3);font-size:clamp(2rem,5vw,2.8rem)}.brew-head p{color:var(--ink-muted)}.brew-cats{gap:var(--space-2);margin-bottom:var(--space-6);flex-wrap:wrap;display:flex}.brew-cats button{border:1px solid var(--line);color:var(--ink-muted);transition:all .25s var(--ease-out);border-radius:999px;padding:.45rem .9rem;font-size:.9rem}.brew-cats button.active{background:var(--cat-color);color:#fff;border-color:#0000}.brew-layout{gap:var(--space-6);align-items:start;display:grid}@media (width>=860px){.brew-layout{grid-template-columns:200px 1fr}}.brew-panel{padding:var(--space-5);border-radius:var(--radius-lg);background:var(--surface-strong);border:1px solid var(--line)}.brew-panel h2{margin-bottom:var(--space-4);font-size:1.5rem}.brew-meta{gap:var(--space-3);margin:0 0 var(--space-4);display:grid}@media (width>=600px){.brew-meta{grid-template-columns:repeat(2,1fr)}}.brew-meta dt{color:var(--ink-muted);margin-bottom:.2rem;font-size:.75rem}.brew-meta dd{margin:0;line-height:1.5}.brew-note{color:var(--clay);margin-bottom:var(--space-5);padding-bottom:var(--space-4);border-bottom:1px solid var(--line);font-size:.9rem;line-height:1.6}.brew-steps{margin:0 0 var(--space-5);gap:var(--space-2);padding:0;list-style:none;display:grid}.brew-steps button{text-align:left;gap:var(--space-3);width:100%;padding:var(--space-3);border-radius:var(--radius-md);color:var(--ink-muted);align-items:flex-start;line-height:1.55;transition:background .25s,color .25s;display:flex}.brew-steps button span{border:1px solid var(--line);border-radius:50%;flex-shrink:0;place-items:center;width:1.6rem;height:1.6rem;font-size:.8rem;display:grid}.brew-steps button.active{background:color-mix(in srgb, var(--jade) 12%, white);color:var(--ink)}.brew-steps button.active span{background:var(--jade);color:#fff;border-color:#0000}.brew-steps button.done span{background:var(--gold-soft);color:var(--ink);border-color:#0000}.brew-nav{gap:var(--space-3);display:flex}.brew-nav button{border:1px solid var(--line);color:var(--ink-muted);border-radius:999px;padding:.65rem 1.2rem}.brew-nav button:disabled{opacity:.4;cursor:not-allowed}.brew-nav button.primary{background:var(--jade);color:#fff;border-color:#0000}.culture-head{margin-bottom:var(--space-7)}.culture-head h1{color:var(--jade-deep);margin-bottom:var(--space-3);font-size:clamp(2rem,5vw,2.8rem)}.culture-head p{color:var(--ink-muted)}.timeline h2,.culture-split h2{margin-bottom:var(--space-5);color:var(--jade-deep);font-size:1.35rem}.timeline ol{margin:0 0 var(--space-8);border-left:2px solid color-mix(in srgb, var(--jade) 35%, transparent);gap:var(--space-6);padding:0 0 0 1.25rem;list-style:none;display:grid}.timeline li{padding-left:var(--space-4);position:relative}.timeline-dot{background:var(--jade);width:10px;height:10px;box-shadow:0 0 0 4px color-mix(in srgb, var(--jade) 18%, transparent);border-radius:50%;position:absolute;top:.35rem;left:calc(-1.25rem - 5px)}.timeline-era{color:var(--gold);letter-spacing:.06em;margin-bottom:var(--space-2);font-size:.8rem}.timeline h3{margin-bottom:var(--space-2);font-size:1.2rem}.timeline li>p:last-child{color:var(--ink-muted);line-height:1.7}.culture-split{gap:var(--space-6);display:grid}@media (width>=800px){.culture-split{grid-template-columns:1fr 1fr}}.eti-list,.ware-list{gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}.eti-list li,.ware-list li{padding:var(--space-4);border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line)}.eti-list h3,.ware-list h3{margin-bottom:var(--space-2);color:var(--jade-deep);font-size:1.05rem}.eti-list p,.ware-list p{color:var(--ink-muted);font-size:.95rem;line-height:1.65}.chajing{width:min(800px,100%)}.chajing-head{margin-bottom:var(--space-7);text-align:center}.chajing-meta{letter-spacing:.2em;color:var(--gold);margin-bottom:var(--space-3);font-size:.85rem}.chajing-head h1{color:var(--jade-deep);margin-bottom:var(--space-4);font-size:clamp(2.2rem,6vw,3.2rem)}.chajing-about{color:var(--ink-muted);text-align:left;max-width:38rem;margin:0 auto;font-size:.95rem;line-height:1.8}.chajing-volumes{gap:var(--space-6);display:grid}.chajing-volume{background:var(--paper);border:1px solid var(--paper-edge);border-radius:var(--radius-lg);padding:var(--space-5);box-shadow:var(--shadow)}.chajing-volume h2{color:var(--gold);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--paper-edge);font-size:1.3rem}.chajing-volume ul{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.chajing-volume a{gap:var(--space-3);padding:var(--space-3);border-radius:var(--radius-sm);grid-template-columns:auto 1fr auto;align-items:center;transition:background .25s;display:grid}.chajing-volume a:hover{background:#2f6b5a14}.ch-num{font-family:var(--font-display);color:var(--gold);font-size:.9rem}.ch-title{font-family:var(--font-display);color:var(--ink);font-size:1.1rem}.ch-arrow{color:var(--jade);opacity:0;font-size:.8rem;transition:opacity .25s}.chajing-volume a:hover .ch-arrow{opacity:1}.reader-toolbar{top:var(--nav-h);z-index:20;margin:0 calc(-1 * var(--space-5)) var(--space-5);padding:0 var(--space-5) var(--space-3);background:linear-gradient(180deg, var(--paper) 60%, transparent);position:sticky}.reader-progress{height:3px;margin-bottom:var(--space-3);background:#b8956a33;border-radius:999px;overflow:hidden}.reader-progress-bar{background:var(--gold);height:100%;transition:width .35s var(--ease-out)}.reader-toolbar-row{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.reader-toggle{background:#1a24210f;border-radius:999px;padding:3px;display:inline-flex}.reader-toggle button{color:var(--ink-muted);border-radius:999px;padding:.4rem .9rem;font-size:.85rem}.reader-toggle button.active{background:var(--paper);color:var(--jade-deep);box-shadow:0 1px 4px #0000000f}.reader-vertical-btn{border:1px solid var(--line);color:var(--ink-muted);border-radius:999px;padding:.4rem .85rem;font-size:.85rem}.reader-vertical-btn.active{border-color:var(--gold);color:var(--jade-deep)}.reader{background:0 0}.reader.is-vertical{width:100%}.reader-head{text-align:center;margin-bottom:var(--space-5)}.reader-head p{color:var(--gold);letter-spacing:.12em;margin-bottom:var(--space-2);font-size:.85rem}.reader-head h1{color:var(--jade-deep);font-size:clamp(1.8rem,4vw,2.4rem)}.reader-body{background:var(--paper);border:1px solid var(--paper-edge);border-radius:var(--radius-lg);padding:var(--space-6) var(--space-5);box-shadow:var(--shadow);margin-bottom:var(--space-6);font-family:var(--font-display);position:relative}.reader-body.horizontal p{color:var(--ink);margin-bottom:var(--space-5);text-align:justify;font-size:1.08rem;line-height:2}.reader-body.horizontal p:last-of-type{margin-bottom:0}.reader-body.vertical{writing-mode:vertical-rl;text-orientation:mixed;max-height:70vh;padding:var(--space-5) var(--space-6);direction:ltr;overflow:auto hidden}.reader-body.vertical p{letter-spacing:.08em;margin:0 var(--space-4) 0 0;height:100%;font-size:1.15rem;line-height:2.1}.scroll-edge{background:linear-gradient(90deg, transparent, var(--gold-soft), transparent);height:2px;margin:0 0 var(--space-5);opacity:.7}.scroll-edge.bottom{margin:var(--space-5) 0 0}.reader-body.vertical .scroll-edge{display:none}.reader-pager{justify-content:space-between;gap:var(--space-4);font-size:.9rem;display:flex}.reader-pager a{color:var(--jade);padding:var(--space-2) 0}.reader-pager a:hover{color:var(--jade-deep)}:root{--ink:#1a2421;--ink-muted:#4a5a54;--jade:#2f6b5a;--jade-deep:#1e4a3d;--jade-soft:#5a9a86;--mist-top:#e8f0ec;--mist-bot:#d4e4dc;--clay:#c4784a;--clay-soft:#d49a72;--gold:#b8956a;--gold-soft:#d4bc94;--paper:#f7f3eb;--paper-edge:#ebe4d6;--steam:#ffffff8c;--surface:#ffffff6b;--surface-strong:#ffffffb8;--line:#1a24211f;--shadow:0 18px 48px #1e4a3d1f;--font-display:"Noto Serif SC", "Songti SC", serif;--font-body:"IBM Plex Sans", "PingFang SC", "Helvetica Neue", sans-serif;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4.5rem;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--nav-h:64px;--bottom-nav-h:64px;--ease-out:cubic-bezier(.22, 1, .36, 1)}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100dvh;font-family:var(--font-body);color:var(--ink);background:linear-gradient(180deg, var(--mist-top) 0%, var(--mist-bot) 100%);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;background-attachment:fixed;margin:0}#root{min-height:100dvh}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit;background:0 0;border:none}img{max-width:100%;display:block}h1,h2,h3,h4{font-family:var(--font-display);margin:0;font-weight:600}p{margin:0}.app-shell{flex-direction:column;min-height:100dvh;display:flex}.page{width:min(1120px,100%);padding:calc(var(--nav-h) + var(--space-5)) var(--space-5) calc(var(--bottom-nav-h) + var(--space-7));flex:1;margin:0 auto}.page-narrow{width:min(760px,100%)}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}