:root{--ink:#262238;--muted:#68627b;--paper:#fbfaff;--card:#fff;--purple:#6d55a5;--lav:#eee9fa;--blue:#dceefa;--gold:#c99a46;--goldp:#fbf3df;--line:#ded9ea;--danger:#8b3f62;--shadow:0 14px 35px rgba(52,42,83,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#f8f6fd 0,#f4f9fc 42%,#fbf8f2 100%);color:var(--ink);font:17px/1.6 "Segoe UI",Arial,sans-serif}.hero{padding:72px 24px 56px;text-align:center;background:radial-gradient(circle at 20% 20%,#eee5ff 0,transparent 35%),radial-gradient(circle at 80% 10%,#dff3ff 0,transparent 32%)}.eyebrow,.section-kicker{font-size:.76rem;font-weight:800;letter-spacing:.14em;color:var(--purple)}h1{font-family:"Segoe UI",Arial,sans-serif;font-weight:800;font-size:clamp(2.4rem,7vw,5rem);line-height:.96;margin:14px auto 20px;max-width:900px}h1 span{color:var(--purple)}.hero p{max-width:720px;margin:0 auto;color:var(--muted);font-size:1.08rem}.hero-note{display:inline-block;margin-top:28px;padding:11px 16px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);font-size:.92rem}main{width:min(1080px,calc(100% - 28px));margin:auto}.panel,.final-card{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:28px;padding:clamp(24px,5vw,48px);margin:24px 0;box-shadow:var(--shadow)}h2{font-family:"Segoe UI",Arial,sans-serif;font-weight:750;font-size:clamp(1.8rem,4vw,2.7rem);margin:6px 0 8px}.lead{color:var(--muted);margin-top:0}.route-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:26px}.route{appearance:none;text-align:left;border:1px solid var(--line);background:var(--card);border-radius:18px;padding:18px;min-height:100px;cursor:pointer;color:var(--ink);font:inherit;transition:.18s}.route:hover,.route:focus-visible{transform:translateY(-2px);border-color:#b9acd8;box-shadow:0 8px 22px rgba(70,53,111,.12);outline:none}.route .icon{font-size:1.5rem;display:block;margin-bottom:8px}.route strong{display:block;font-size:1rem}.route small{display:block;color:var(--muted);margin-top:4px}.urgent{border-color:#d8a8bd!important;background:#fff8fb!important}.hidden{display:none}.back{border:0;background:var(--lav);color:var(--purple);font-weight:750;border-radius:999px;padding:11px 15px;cursor:pointer}.result-title{margin-top:22px}.four{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}.info{border-radius:18px;padding:20px;border:1px solid var(--line);background:#fff}.info h3{margin:0 0 7px;font-size:.78rem;letter-spacing:.11em;color:var(--purple)}.info p{margin:0}.help{background:#f5fbff}.worse{background:#fff8f4}.big-rule{margin:20px 0 0;padding:18px 20px;border-left:5px solid var(--gold);background:var(--goldp);font-weight:750;border-radius:0 14px 14px 0}.management{margin-top:18px;padding:14px 16px;border-radius:14px;background:#f6f3fb;color:#554d68;font-size:.9rem}.shutdown{background:#fff7fa;border:1px solid #e5b5c9;border-radius:20px;padding:22px;margin-top:20px}.shutdown h3{color:var(--danger);margin-top:0}.shutdown-rule{font-weight:900;font-size:1.18rem;letter-spacing:.02em}.translate-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}.translate{padding:18px;border:1px solid var(--line);border-radius:17px;background:#fff}.translate b{display:block;color:var(--purple);margin-bottom:6px}.logic-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:25px 0}.logic-flow div{padding:12px 14px;background:var(--blue);border-radius:14px;font-weight:700}.logic-flow span{color:var(--gold);font-weight:900}.song-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}.song{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 17px;border:1px solid var(--line);border-radius:16px;text-decoration:none;color:var(--ink);background:#fff}.song:hover{border-color:#b9acd8}.song span:last-child{color:var(--purple);font-weight:800}.rules{display:grid;gap:10px;margin-top:22px}.rules article{display:grid;grid-template-columns:42px 1fr;column-gap:14px;padding:16px;border-radius:16px;background:#faf9fd}.rules b{grid-row:1/3;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--purple);color:white}.rules h3,.rules p{margin:0}.rules p{color:var(--muted)}.final-card{text-align:center;background:linear-gradient(135deg,#f1ebfb,#edf7fc)}blockquote{font-family:"Segoe UI",Arial,sans-serif;font-weight:700;font-size:clamp(1.6rem,4vw,2.5rem);margin:26px auto;max-width:720px;color:var(--purple)}.root{font-weight:900;margin-top:24px;color:#4e3e79}footer{text-align:center;padding:35px 20px 55px;color:var(--muted);font-size:.9rem}@media(max-width:680px){.hero{padding-top:48px}.route-grid,.four,.translate-grid,.song-grid{grid-template-columns:1fr}.panel,.final-card{border-radius:22px}.hero-note{border-radius:18px}.logic-flow{align-items:stretch;flex-direction:column}.logic-flow span{text-align:center;transform:rotate(90deg)}}

/* Polish pass: quick navigation, clearer interaction states, and small Management flourishes */
.quick-nav{position:sticky;top:0;z-index:20;display:flex;justify-content:center;gap:8px;flex-wrap:wrap;padding:10px 14px;background:rgba(251,250,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.quick-nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:.86rem;padding:8px 11px;border-radius:999px;border:1px solid transparent}
.quick-nav a:hover,.quick-nav a:focus-visible{background:var(--lav);border-color:#d4c9ee;outline:none;color:var(--purple)}
.route{position:relative;overflow:hidden}.route:after{content:'OPEN →';position:absolute;right:16px;bottom:12px;font-size:.7rem;letter-spacing:.08em;font-weight:900;color:var(--purple);opacity:.58}.route strong{padding-right:52px}
.route.urgent:after{content:'OPEN NOW →';color:var(--danger)}
.result-panel{scroll-margin-top:72px}.result-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.mini-btn{border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-weight:750;border-radius:999px;padding:10px 14px;cursor:pointer}.mini-btn:hover,.mini-btn:focus-visible{background:var(--lav);outline:none;border-color:#c7b9e6}.status-pill{display:inline-flex;align-items:center;gap:7px;margin-top:12px;padding:7px 11px;border-radius:999px;background:var(--goldp);font-size:.8rem;font-weight:800;color:#6c5427}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.management strong{color:var(--purple)}
.spark{display:inline-block;animation:twinkle 3.2s ease-in-out infinite}@keyframes twinkle{0%,100%{transform:rotate(-3deg) scale(1);opacity:.72}50%{transform:rotate(4deg) scale(1.12);opacity:1}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.route{transition:none}.spark{animation:none}}
@media(max-width:680px){.quick-nav{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none}.quick-nav::-webkit-scrollbar{display:none}.quick-nav a{white-space:nowrap}.route:after{font-size:.64rem}.route strong{padding-right:48px}}

/* Practical-use pass */
.quick-help{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0 4px;padding:12px 15px;border-radius:15px;background:var(--goldp);font-size:.9rem}.quick-help strong{color:#6c5427}.quick-help span{color:var(--muted)}
.now-panel{background:linear-gradient(135deg,#fffdf8,#f7f4fd)}.now-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.now-grid article{border:1px solid var(--line);border-radius:18px;padding:19px;background:#fff}.now-grid article>span{font-size:1.45rem}.now-grid h3{margin:7px 0 6px;font-size:1.02rem}.now-grid p{color:var(--muted);margin:0 0 10px}.now-grid b{font-size:.9rem;color:var(--purple)}
@media(max-width:760px){.now-grid{grid-template-columns:1fr}}


/* Fast-find pass */
.route-search{display:grid;grid-template-columns:auto minmax(180px,1fr) auto;align-items:center;gap:10px;margin:14px 0 0;padding:11px 14px;border:1px solid var(--line);border-radius:16px;background:#fff}.route-search>span{font-weight:800;color:var(--purple)}.route-search input{width:100%;border:0;outline:0;background:#f8f7fb;border-radius:10px;padding:10px 12px;font:inherit;color:var(--ink)}.route-search input:focus{box-shadow:0 0 0 2px #cbbce9}.route-search small{color:var(--muted);white-space:nowrap}.route[hidden]{display:none}.shutdown-jump{position:fixed;right:18px;bottom:18px;z-index:30;border:1px solid #ddb0c4;background:#fff8fb;color:var(--danger);box-shadow:0 10px 30px rgba(70,40,55,.16);border-radius:999px;padding:11px 15px;font:inherit;font-size:.86rem;font-weight:850;cursor:pointer}.shutdown-jump:hover,.shutdown-jump:focus-visible{transform:translateY(-1px);outline:2px solid #e6bfd0;outline-offset:2px}@media(max-width:680px){.route-search{grid-template-columns:1fr}.route-search small{white-space:normal}.shutdown-jump{right:12px;bottom:12px;padding:10px 12px}}

/* Locked art integration */
.feature-art{margin:30px auto 0;max-width:1180px}.feature-art img{display:block;width:100%;height:auto;border-radius:22px;border:1px solid var(--line);box-shadow:0 16px 38px rgba(52,42,83,.13)}.feature-art figcaption{text-align:center;color:var(--muted);font-size:.82rem;margin-top:9px}.hero-art{max-width:1120px}.hero-art img{aspect-ratio:16/9;object-fit:cover}.logic-art{margin:22px 0 26px}.logic-art img{aspect-ratio:16/9;object-fit:cover}.shutdown-art{margin:18px 0 0}.shutdown-art img{aspect-ratio:16/9;object-fit:cover}.art-label{display:inline-flex;align-items:center;gap:7px;margin-top:16px;padding:6px 10px;border-radius:999px;background:var(--lav);color:var(--purple);font-size:.76rem;font-weight:850;letter-spacing:.04em}.hero{padding-bottom:40px}.hero .feature-art{width:min(1120px,calc(100% - 10px))}@media(max-width:680px){.feature-art img{border-radius:16px}.hero-art{margin-top:24px}.feature-art figcaption{font-size:.76rem}.hero{padding-bottom:28px}}