:root{--bg:#0b0a10;--panel:#14121c;--panel2:#1b1825;--line:#2b2638;--text:#f7f4ff;--muted:#a9a3b8;--purple:#9b7bff;--purple2:#6c4fe0;--cyan:#65d9e8;--gold:#ffd478;--radius:18px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse at 78% -15%,#241744 0,transparent 42%),var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.site-header{height:76px;display:flex;align-items:center;border-bottom:1px solid #ffffff0c;background:#0b0a10d9;backdrop-filter:blur(18px);position:sticky;top:0;z-index:20}.nav{display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;font-size:20px;margin-right:auto}.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,#b8a0ff,#7450e9);display:grid;place-items:center;color:white;box-shadow:0 6px 24px #7653e966}.nav-links{display:flex;align-items:center;gap:25px;color:#c4bed1;font-size:14px}.nav-links a:hover,.nav-links a.active{color:#fff}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:12px;padding:11px 17px;background:linear-gradient(135deg,#a58bff,#7452e8);color:#fff;font-weight:700;font-size:14px;box-shadow:0 8px 28px #7958e82b;transition:.2s}.nav-cta:hover,.btn:hover{transform:translateY(-1px);filter:brightness(1.08)}.btn.secondary{background:#ffffff08;border-color:#ffffff1b;box-shadow:none;color:#e8e2f4}.btn.small{padding:8px 12px;font-size:13px}.btn.ghost{background:transparent;border-color:var(--line);box-shadow:none}.mobile-menu{display:none;background:none;border:0;color:white;font-size:24px}.eyebrow{color:#c0adff;font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;display:flex;align-items:center;gap:8px}.eyebrow:before{content:"";width:20px;height:1px;background:var(--purple)}.section-head .eyebrow,.split-section .eyebrow,.cta-band .eyebrow{margin-bottom:20px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,5.5vw,66px);line-height:1.08;letter-spacing:-.055em;margin:16px 0 20px}h2{font-size:clamp(26px,3.5vw,38px);line-height:1.16;letter-spacing:-.035em;margin-bottom:12px}h3{font-size:17px;margin-bottom:7px}.gradient-text{background:linear-gradient(100deg,#fff 15%,#c5b3ff 58%,#76e1e8);-webkit-background-clip:text;background-clip:text;color:transparent}.lead{color:#bbb5c9;font-size:17px;max-width:580px;line-height:1.8}.muted{color:var(--muted)}.small-text{font-size:12px;color:var(--muted)}.section{padding:76px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:26px}.section-head p{margin-bottom:0;color:var(--muted);max-width:520px}.text-link{color:#c5b4ff;font-size:14px;font-weight:700}.hero{padding:76px 0 70px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}.trust-row{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px}.avatar-stack{display:flex;padding-left:4px}.avatar-stack .avatar{margin-left:-5px;border:2px solid var(--bg)}.avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;font-weight:800;font-size:12px;color:#fff;background:linear-gradient(145deg,#9574ff,#3c2a63);flex-shrink:0}.avatar.a2{background:linear-gradient(145deg,#f0b1a4,#77495c)}.avatar.a3{background:linear-gradient(145deg,#73d5d7,#26586b)}.avatar.a4{background:linear-gradient(145deg,#f2cc78,#8e5b32)}.hero-art{position:relative;min-height:390px;display:grid;place-items:center}.orb{position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,#8358ff50,transparent 68%);filter:blur(6px)}.piano-window{position:relative;width:100%;max-width:500px;background:linear-gradient(160deg,#1d1929,#100e16);border:1px solid #ffffff1b;border-radius:22px;padding:18px;box-shadow:0 32px 90px #0008,0 0 65px #7952e824;transform:rotate(-2deg)}.window-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff12;padding-bottom:14px;margin-bottom:14px}.window-dots{display:flex;gap:5px}.window-dots i{width:6px;height:6px;border-radius:50%;background:#5e566e}.mini-tag{font-size:10px;border:1px solid #4b3c6b;color:#cdbdff;border-radius:6px;padding:4px 7px}.falling{height:210px;position:relative;overflow:hidden;background:linear-gradient(180deg,#191426,#0e0c14);border-radius:12px;border:1px solid #ffffff0b}.falling:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#8e6cff,#5ee2ed)}.note{position:absolute;top:-15px;width:18px;border-radius:5px;background:linear-gradient(180deg,#b8a5ff,#6d51e8);box-shadow:0 0 14px #8b6cff7a;animation:fall 3.4s linear infinite}.note.cyan{background:linear-gradient(180deg,#a0f5f1,#3fbcc8);box-shadow:0 0 12px #54dbe766}.note:nth-child(1){left:13%;height:65px;animation-delay:-.6s}.note:nth-child(2){left:24%;height:92px;animation-delay:-1.8s}.note:nth-child(3){left:38%;height:50px;animation-delay:-2.5s}.note:nth-child(4){left:51%;height:77px;animation-delay:-.9s}.note:nth-child(5){left:66%;height:58px;animation-delay:-2.9s}.note:nth-child(6){left:78%;height:88px;animation-delay:-1.2s}.note:nth-child(7){left:88%;height:48px;animation-delay:-2s}@keyframes fall{to{transform:translateY(245px)}}.keyboard{display:flex;height:63px;margin-top:10px;gap:3px}.key{background:linear-gradient(#fff,#d8d4df);border-radius:0 0 5px 5px;flex:1;position:relative}.key.black:after{content:"";position:absolute;top:0;right:-8px;width:15px;height:38px;background:#262130;border-radius:0 0 4px 4px;z-index:2;box-shadow:0 3px 4px #0006}.key.active{background:linear-gradient(#c8bcff,#9273ff)}.float-card{position:absolute;background:#1a1723;border:1px solid #ffffff1c;border-radius:13px;padding:12px 15px;box-shadow:0 12px 35px #0005}.float-card strong{display:block;font-size:18px}.float-card span{font-size:11px;color:var(--muted)}.float-one{right:-10px;top:43px}.float-two{left:-18px;bottom:45px}.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid #ffffff12;background:#ffffff12;border-radius:16px;overflow:hidden;margin-top:42px}.stat{background:#111018;padding:19px 22px}.stat strong{display:block;font-size:22px;letter-spacing:-.04em}.stat span{color:var(--muted);font-size:12px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{background:linear-gradient(160deg,#191622,#121018);border:1px solid #ffffff10;border-radius:var(--radius);overflow:hidden;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:#9a7aff55}.card-body{padding:17px}.cover{aspect-ratio:1.45;position:relative;overflow:hidden;display:flex;align-items:end;padding:17px;background:radial-gradient(circle at 70% 30%,#8d6eff99,transparent 30%),linear-gradient(135deg,#32234e,#13121b 72%)}.cover:before{content:"";position:absolute;width:155px;height:155px;border:1px solid #ffffff1d;border-radius:50%;right:-22px;top:-28px;box-shadow:0 0 0 18px #ffffff05,0 0 0 38px #ffffff04}.cover:after{content:"♫";position:absolute;right:24px;top:12px;font-size:76px;color:#ffffff24}.cover.c2{background:radial-gradient(circle at 70% 30%,#e09c9b77,transparent 30%),linear-gradient(135deg,#4a2b43,#13121b 72%)}.cover.c3{background:radial-gradient(circle at 70% 30%,#59cbd377,transparent 30%),linear-gradient(135deg,#1c4650,#13121b 72%)}.cover.c4{background:radial-gradient(circle at 70% 30%,#f1c47777,transparent 30%),linear-gradient(135deg,#51402c,#13121b 72%)}.cover.c5{background:radial-gradient(circle at 70% 30%,#a8b8ff77,transparent 30%),linear-gradient(135deg,#2b315b,#13121b 72%)}.cover-label{position:relative;z-index:1;font-size:11px;background:#0c0a12a6;border:1px solid #ffffff1c;padding:5px 8px;border-radius:7px}.card-title-row{display:flex;align-items:start;justify-content:space-between;gap:12px}.card-title-row h3{margin:0}.card p{color:var(--muted);font-size:13px;margin:7px 0 0}.pill{display:inline-flex;align-items:center;border:1px solid #ffffff16;background:#ffffff06;color:#c9c2d5;padding:5px 8px;border-radius:8px;font-size:11px;white-space:nowrap}.pill.purple{color:#d3c5ff;border-color:#7356b65c;background:#8a68ff14}.pill.cyan{color:#8ce6e9;border-color:#4a9da15c;background:#4acbd014}.split-section{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}.feature-list{display:grid;gap:18px;margin:28px 0}.feature{display:flex;gap:13px}.feature-icon{width:40px;height:40px;border:1px solid #ffffff15;background:#ffffff07;border-radius:12px;display:grid;place-items:center;color:#c4b3ff;flex-shrink:0}.feature p{margin:3px 0 0;color:var(--muted);font-size:13px}.rank-preview{border:1px solid #ffffff12;background:linear-gradient(150deg,#191622,#100e16);border-radius:20px;padding:22px}.rank-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.rank-tabs{display:flex;background:#0e0c14;padding:4px;border-radius:10px;gap:3px}.rank-tabs button,.tabs button{border:0;color:var(--muted);background:transparent;border-radius:8px;padding:8px 12px;font-size:12px}.rank-tabs button.active,.tabs button.active{background:#7452d7;color:white}.rank-row{display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #ffffff0c}.rank-row:last-child{border:0}.rank-num{font-size:13px;color:var(--muted);text-align:center}.rank-num.top{color:var(--gold);font-weight:800}.user-mini{display:flex;align-items:center;gap:10px;min-width:0}.user-mini strong{display:block;font-size:13px}.user-mini span{font-size:11px;color:var(--muted)}.score{font-weight:800;font-size:15px}.cta-band{border:1px solid #ffffff16;border-radius:22px;padding:35px;background:radial-gradient(ellipse at 85% 10%,#7952e84a,transparent 40%),linear-gradient(120deg,#1b1727,#111018);display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-band p{color:var(--muted);margin:8px 0 0}.page-hero{padding:50px 0 26px}.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:18px}.breadcrumb a:hover{color:white}.page-title-row{display:flex;align-items:end;justify-content:space-between;gap:24px}.page-title-row p{color:var(--muted);max-width:580px;margin:10px 0 0}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:24px 0}.search{display:flex;align-items:center;gap:8px;background:#15121d;border:1px solid var(--line);border-radius:11px;padding:0 13px;min-width:220px}.search input{border:0;outline:0;background:transparent;color:white;padding:11px 0;width:100%}.select{background:#15121d;color:#eee;border:1px solid var(--line);border-radius:11px;padding:11px 13px}.song-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.song-card .cover{aspect-ratio:1.08}.song-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px}.song-meta .small-text{font-size:11px}.leader-layout{display:grid;grid-template-columns:1fr 290px;gap:22px;align-items:start}.panel{border:1px solid #ffffff12;background:linear-gradient(160deg,#191622,#121018);border-radius:18px;padding:20px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:17px}.leader-row{position:relative;display:grid;grid-template-columns:38px minmax(0,1fr) 100px auto;align-items:center;gap:13px;padding:13px 5px;border-bottom:1px solid #ffffff0b}.leader-row:last-child{border:0}.leader-row .song-info{display:flex;align-items:center;gap:12px;min-width:0}.leader-row .song-info:after{content:"";position:absolute;inset:0}.mini-cover{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#7050be,#1e1830);display:grid;place-items:center;font-size:19px;flex-shrink:0}.leader-row .song-info strong{display:block;font-size:13px}.leader-row .song-info span{font-size:11px;color:var(--muted)}.rank-score{font-size:13px;font-weight:800;text-align:right}.rank-actions{position:relative;z-index:1}.rank-user{display:flex;align-items:center;gap:7px;justify-content:flex-end;font-size:12px;color:#d9d2e5;white-space:nowrap}.rank-user .avatar{width:25px;height:25px;font-size:9px}.top-three{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}.podium{padding:17px 10px;border:1px solid #ffffff10;background:#ffffff04;border-radius:13px;text-align:center}.podium .avatar{margin:0 auto 8px;width:43px;height:43px}.podium strong{display:block;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.podium span{font-size:11px;color:var(--muted)}.podium.first{border-color:#b99a5b55;background:#ffd47808}.podium .medal{font-size:17px;margin-bottom:6px}.side-list{display:grid;gap:14px}.side-item{display:flex;align-items:center;gap:10px}.side-item .mini-cover{width:42px;height:42px}.side-item strong{font-size:12px;display:block}.side-item span{font-size:11px;color:var(--muted)}.profile-hero{padding:38px 0 30px}.profile-card{border:1px solid #ffffff12;border-radius:22px;background:radial-gradient(ellipse at 90% 0%,#7854e52a,transparent 44%),#15121c;padding:28px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.profile-main{display:flex;align-items:center;gap:19px}.avatar.xl{width:82px;height:82px;font-size:26px;border:3px solid #ffffff17}.profile-main h1{font-size:30px;margin:0 0 6px}.profile-main p{margin:0;color:var(--muted);font-size:13px}.profile-badges{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.stats-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:14px}.stat-tile{background:#15121c;border:1px solid #ffffff0e;border-radius:13px;padding:15px}.stat-tile strong{display:block;font-size:20px;letter-spacing:-.04em}.stat-tile span{font-size:11px;color:var(--muted)}.tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin:27px 0 20px;overflow:auto}.tabs button{white-space:nowrap;padding:11px 15px;border-radius:9px 9px 0 0}.record-list{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.record-card{display:flex;gap:14px;align-items:center;padding:14px;border:1px solid #ffffff12;border-radius:15px;background:#14121b;min-width:0}.record-cover{width:78px;height:78px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;font-size:28px;background:radial-gradient(circle at 65% 20%,#a08aff8c,transparent 45%),linear-gradient(135deg,#3b2c5b,#17131f)}.record-details{flex:1;min-width:0}.record-details h3{font-size:14px;margin:0 0 5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.record-details p{font-size:11px;color:var(--muted);margin:0 0 9px}.record-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.score-chip{font-size:11px;color:#d7caff;background:#8060ed1b;border:1px solid #8060ed4c;border-radius:7px;padding:4px 7px;text-decoration:none}.play-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:20px;align-items:start}.player{border:1px solid #ffffff14;border-radius:20px;background:#111018;overflow:hidden}.player-head{padding:17px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #ffffff0c}.player-head strong{display:block}.player-head span{font-size:12px;color:var(--muted)}.waterfall{height:390px;position:relative;overflow:hidden;background:linear-gradient(180deg,#181427,#0c0b11);background-image:linear-gradient(#ffffff07 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px),linear-gradient(180deg,#181427,#0c0b11);background-size:100% 52px,9.09% 100%,100% 100%}.waterfall .lane{position:absolute;top:0;bottom:0;width:1px;background:#ffffff08}.waterfall .wf-note{position:absolute;width:22px;border-radius:5px;background:linear-gradient(#c3b4ff,#7855f2);box-shadow:0 0 15px #8c6cff52}.waterfall .wf-note.cyan{background:linear-gradient(#9df0ee,#36aebd);box-shadow:0 0 14px #52d6dd4f}.waterfall .hit-line{position:absolute;bottom:70px;height:2px;left:0;right:0;background:#73e4e9;box-shadow:0 0 14px #73e4e9}.waterfall .playhead{position:absolute;top:0;bottom:0;width:1px;background:#ffffff30;left:34%}.player-keyboard{display:flex;gap:3px;height:74px;padding:0 9px 9px;background:#0c0b10}.player-keyboard .key{border-radius:0 0 5px 5px}.player-keyboard .key.black:after{height:40px}.controls{padding:16px 19px;display:flex;align-items:center;gap:13px;border-top:1px solid #ffffff0c}.round-btn{border:0;width:38px;height:38px;border-radius:50%;background:#8a68f4;color:white;display:grid;place-items:center;font-size:15px}.timeline{flex:1;min-width:0}.timeline input{width:100%;accent-color:#a58bff}.time-row{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.speed-btn{border:1px solid var(--line);border-radius:8px;background:#191622;color:#ddd;padding:7px 9px;font-size:11px}.side-panel{display:grid;gap:13px}.score-big{font-size:42px;font-weight:850;letter-spacing:-.06em;color:#d7c7ff}.score-big small{font-size:14px;color:var(--muted);letter-spacing:0}.score-track{height:6px;background:#ffffff13;border-radius:9px;overflow:hidden;margin-top:9px}.score-track span{display:block;height:100%;width:96%;background:linear-gradient(90deg,#8a68f4,#5edce2);border-radius:9px}.process-note{border:1px solid #ffffff12;background:#15121c;border-radius:15px;padding:16px}.process-note p{color:var(--muted);font-size:12px;margin:6px 0 0}.steps{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin:20px 0}.steps span{font-size:13px;color:var(--muted);border:0;background:none;padding:0;border-radius:0;white-space:nowrap}.steps span em{font-style:normal;font-weight:800;font-size:12px;letter-spacing:.06em;color:#c5b4ff;margin-right:7px}.footer{border-top:1px solid #ffffff10;padding:35px 0 26px;margin-top:60px;color:var(--muted);font-size:12px}.footer-row{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-links{display:flex;gap:18px}.empty{display:none;padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:15px}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%,20px);background:#292239;border:1px solid #8e72e6;color:white;padding:10px 16px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}@media(max-width:900px){.nav-links{gap:14px}.hero-grid,.split-section{grid-template-columns:1fr;gap:28px}.hero{padding-top:55px}.hero-art{min-height:350px}.cards{grid-template-columns:repeat(2,1fr)}.song-grid{grid-template-columns:repeat(3,1fr)}.leader-layout,.play-layout{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(3,1fr)}.profile-card{grid-template-columns:1fr}.profile-card>.btn{justify-self:start}.side-panel{grid-template-columns:repeat(2,1fr)}.side-panel .process-note:last-child{grid-column:1/-1}.leader-row{grid-template-columns:32px minmax(0,1fr) 80px}.leader-row .rank-user{display:none}}@media(max-width:640px){.wrap{width:min(100% - 28px,var(--max))}.site-header{height:64px}.nav-links,.nav-cta{display:none}.mobile-menu{display:block}.nav-links.open{display:flex;position:absolute;left:14px;right:14px;top:58px;padding:16px;background:#17131f;border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:stretch;gap:0}.nav-links.open a{padding:10px 8px}.hero{padding:44px 0 42px}.hero-grid{gap:15px}h1{font-size:42px}.lead{font-size:15px}.hero-art{min-height:280px}.piano-window{padding:12px}.falling{height:155px}.keyboard{height:45px}.key.black:after{height:28px;width:11px;right:-6px}.float-card{padding:9px 11px}.float-one{right:-2px;top:8px}.float-two{left:-4px;bottom:15px}.float-card strong{font-size:15px}.stat-strip{margin-top:24px}.stat{padding:13px}.stat strong{font-size:18px}.section{padding:48px 0}.section-head{align-items:start;flex-direction:column;gap:12px}.cards{grid-template-columns:1fr}.cards .card{display:grid;grid-template-columns:120px 1fr}.cards .cover{height:100%;aspect-ratio:auto;padding:9px}.cards .cover:after{font-size:45px;right:10px}.cards .card-body{padding:13px}.cards .card-body h3{font-size:14px}.cards .card-body p{font-size:12px}.song-grid{grid-template-columns:repeat(2,1fr);gap:10px}.song-card .cover{aspect-ratio:1}.song-card .card-body{padding:11px}.song-card h3{font-size:13px}.song-card p{font-size:11px}.page-hero{padding:32px 0 15px}.page-title-row{align-items:start;flex-direction:column}.toolbar{margin:18px 0;align-items:stretch}.search{flex:1;min-width:100%}.select{flex:1;min-width:0}.rank-preview{padding:15px}.cta-band{padding:24px;align-items:start;flex-direction:column}.profile-card{padding:18px}.profile-main{align-items:start;gap:13px}.avatar.xl{width:62px;height:62px}.profile-main h1{font-size:24px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:8px}.stat-tile{padding:12px}.stat-tile strong{font-size:18px}.record-list{grid-template-columns:1fr}.record-cover{width:65px;height:65px}.leader-row{grid-template-columns:25px minmax(0,1fr) 58px;gap:8px}.leader-row .song-info{gap:8px}.leader-row .mini-cover{width:36px;height:36px}.leader-row .song-info strong{font-size:12px}.rank-score{font-size:12px}.top-three{gap:6px}.podium{padding:12px 5px}.panel{padding:14px}.play-layout{gap:12px}.waterfall{height:300px}.player-head{padding:13px}.controls{gap:8px;padding:12px}.side-panel{grid-template-columns:1fr}.side-panel .process-note:last-child{grid-column:auto}.footer-row{align-items:start;flex-direction:column}.footer-links{flex-wrap:wrap}.steps{flex-wrap:wrap}.rank-tabs button{padding:7px 9px}.split-section{gap:20px}}

/* Shared 61-key waterfall renderer used by the homepage and replay page */
.piano-waterfall{position:relative;overflow:hidden;isolation:isolate;background:linear-gradient(180deg,#181427,#0c0b11);background-image:linear-gradient(#ffffff07 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px),linear-gradient(180deg,#181427,#0c0b11);background-size:100% 52px,9.09% 100%,100% 100%;}
.piano-waterfall .waterfall-lanes{position:absolute;inset:0;pointer-events:none;z-index:0}
.piano-waterfall .waterfall-lanes i{position:absolute;top:0;bottom:0;width:1px;background:#ffffff09}
.piano-waterfall .wf-note{position:absolute;z-index:2;display:block;border-radius:4px;background:linear-gradient(180deg,#c3b4ff,#7855f2);box-shadow:0 0 15px #8c6cff52;}
.piano-waterfall .wf-note.cyan{background:linear-gradient(180deg,#9df0ee,#36aebd);box-shadow:0 0 14px #52d6dd4f}
.piano-waterfall .wf-note.black-note{border:1px solid #b9a8ff88;border-radius:3px}
.piano-waterfall .hit-line{position:absolute;z-index:3;bottom:0;left:0;right:0;height:2px;background:#73e4e9;box-shadow:0 0 14px #73e4e9}
.piano-keyboard{position:relative;display:block;overflow:hidden;height:74px;padding:0;background:#0c0b10;border-top:1px solid #ffffff18;}
.piano-keyboard .piano-key{position:absolute;display:block;top:0;height:100%;}
.piano-keyboard .white-key{background:linear-gradient(#fff,#d8d4df);border:1px solid #c6c0cf;border-top:0;border-radius:0 0 4px 4px;z-index:1;}
.piano-keyboard .white-key.c-key:after{content:"C";position:absolute;bottom:4px;left:0;right:0;text-align:center;color:#8b8496;font-size:9px;font-weight:700;}
.piano-keyboard .black-key{height:62%;background:linear-gradient(#383142,#17131f);border:1px solid #07060a;border-top:0;border-radius:0 0 4px 4px;z-index:2;box-shadow:0 3px 4px #0007;}
.piano-keyboard .piano-key.pressed{background:linear-gradient(#c8bcff,#9273ff);box-shadow:0 0 12px #9b7bff88;}
.piano-waterfall .wf-note .wf-finger{position:absolute;left:0;right:0;bottom:2px;text-align:center;font-size:12px;font-weight:700;font-style:normal;color:#fff;text-shadow:0 1px 2px #0009}
.piano-waterfall .wf-note.hit{opacity:.35}
@media(max-width:640px){.piano-keyboard{height:54px}.piano-keyboard .black-key{height:62%}.piano-keyboard .white-key.c-key:after{font-size:7px;bottom:2px}}

/* 页尾版权与备案信息，与 index_yyg.html 保持一致 */
.footer .copy{margin-top:44px;padding-top:24px;border-top:1px solid #ffffff0f;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12.5px;color:#5c6277}
.footer .copy a{transition:.2s}
.footer .copy a:hover{color:#fff}
.footer .beian{display:flex;gap:18px;flex-wrap:wrap}

/* 品牌 Logo，与 index_yyg.html 保持一致 */
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px;font-size:19px}
.logo img{width:38px;height:38px;border-radius:11px;display:block;box-shadow:0 0 20px rgba(170,40,170,.45)}
.logo-txt{display:flex;flex-direction:column;line-height:1.15;font-size:17px}
.logo-txt em{font-style:normal;font-size:9.5px;letter-spacing:1.8px;color:#8b90a8;font-weight:600;margin-top:2px}
.site-header .logo{margin-right:auto}
@media(max-width:640px){.logo img{width:32px;height:32px}.logo-txt{display:none}}

/* hidden 属性必须真正隐藏节点：作者样式表里的 display（如 .record-card 的 flex）
   会覆盖浏览器默认的 [hidden]{display:none}，导致 tab 切换失效、所有记录同时显示 */
[hidden]{display:none!important}

/* 排行榜行末尾的操作区：并列放置「看回放」与「查看主页」两个链接 */
.rank-actions{display:flex;justify-content:flex-end;align-items:center;gap:14px;white-space:nowrap}

/* 语言切换下拉（官网多语言） */
.lang-switch{position:relative;font-size:13px}
.lang-switch>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#ffffff06;color:#c4bed1;border-radius:10px;padding:8px 12px;white-space:nowrap;transition:.2s}
.lang-switch>summary::-webkit-details-marker{display:none}
.lang-switch>summary:hover,.lang-switch[open]>summary{color:#fff;border-color:#9a7aff55}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:140px;display:flex;flex-direction:column;gap:2px;background:#17131f;border:1px solid var(--line);border-radius:12px;padding:6px;box-shadow:0 18px 45px #0008;z-index:30}
.lang-menu a{padding:9px 11px;border-radius:8px;color:#c4bed1;font-size:13px}
.lang-menu a:hover{background:#ffffff0a;color:#fff}
.lang-menu a.active{color:#c5b4ff;font-weight:700}
@media(max-width:640px){.lang-switch>summary{padding:7px 10px;font-size:12px}}