*,*::before,*::after{box-sizing:border-box}
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      body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif;font-size:0.9375rem;line-height:1.5;background:#0a0a0f;color:#fff}
      img,video,svg{display:block;max-width:100%;height:auto}
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      :root{--music-primary:#667eea;--music-secondary:#764ba2;--music-accent:#f5576c;--music-bg-dark:#0a0a0f;--music-bg-darker:#05050a;--music-bg-card:#121218}
    

.qs-diag{padding:84px 0;background:linear-gradient(180deg,#0b1220f5,#080c16fa)}.qs-diag__inner{max-width:1200px;margin:0 auto;padding:0 2rem}.qs-diag__card{border-radius:26px;padding:34px;background:radial-gradient(circle at top right,rgba(102,126,234,.22),transparent 34%),#121218db;border:1px solid rgba(255,255,255,.08);box-shadow:0 28px 70px #00000047}.qs-diag__badge,.qs-diag__ok{display:inline-flex;align-items:center;border-radius:999px;padding:6px 12px;font-size:.78rem;font-weight:700}.qs-diag__badge{color:#dbeafe;background:#60a5fa24;border:1px solid rgba(96,165,250,.2)}.qs-diag__ok{color:#d1fae5;background:#10b9811f;border:1px solid rgba(16,185,129,.18);margin-bottom:16px}.qs-diag__init h2{margin:14px 0 12px;color:#fff;font-size:clamp(1.7rem,3vw,2.3rem)}.qs-diag__init p,.qs-diag__result{max-width:740px;color:#ffffffc2;line-height:1.8;font-size:.96rem}.qs-diag__tags{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 22px}.qs-diag__tags span{border-radius:999px;padding:6px 12px;font-size:.8rem;color:#ffffffd6;background:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.qs-diag__run,.qs-diag__done{display:none}.qs-diag__start,.qs-diag__download,.qs-diag__again{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border-radius:12px;font-size:.95rem;font-weight:700;transition:transform .2s ease,filter .2s ease}.qs-diag__start,.qs-diag__download{padding:0 22px;color:#121212;background:linear-gradient(135deg,#fff,#dbeafe)}.qs-diag__again{padding:0 18px;color:#ffffffe0;border:1px solid rgba(255,255,255,.14);background:transparent}.qs-diag__start:hover,.qs-diag__download:hover,.qs-diag__again:hover{transform:translateY(-1px);filter:brightness(1.05)}.qs-diag__top{display:flex;justify-content:space-between;gap:12px;color:#ffffffb8;font-size:.88rem;margin-bottom:10px}.qs-diag__track{height:10px;border-radius:999px;overflow:hidden;background:#ffffff14;margin-bottom:14px}.qs-diag__fill{width:0;height:100%;border-radius:999px;background:linear-gradient(90deg,#fff,#60a5fa)}.qs-diag__log{border-radius:14px;padding:14px 16px;min-height:52px;background:#ffffff0a;border:1px solid rgba(255,255,255,.06);color:#ffffffd1;font-size:.84rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.qs-diag__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}@media (max-width: 768px){.qs-diag{padding:64px 0}.qs-diag__inner{padding:0 1rem}.qs-diag__card{padding:24px}.qs-diag__start,.qs-diag__download,.qs-diag__again{width:100%}}.qs-community{padding:0 0 92px;background:linear-gradient(180deg,#080c16fa,#080c16)}.qs-community__box{border-radius:26px;padding:30px;display:flex;gap:28px;align-items:center;justify-content:space-between;border:1px solid rgba(255,255,255,.08);background:radial-gradient(circle at top right,rgba(96,165,250,.18),transparent 32%),#121218e6;box-shadow:0 24px 70px #00000042}.qs-community__copy{flex:1;min-width:0}.qs-community__eyebrow{display:inline-flex;border-radius:999px;padding:6px 12px;font-size:.78rem;font-weight:700;color:#dbeafe;background:#60a5fa24;border:1px solid rgba(96,165,250,.2)}.qs-community__copy h2{margin:14px 0 10px;color:#fff;font-size:clamp(1.5rem,2.8vw,2rem)}.qs-community__copy p{max-width:720px;color:#ffffffbf;line-height:1.8;font-size:.96rem}.qs-community__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.qs-community__badges span{border-radius:999px;padding:6px 12px;font-size:.8rem;color:#ffffffd6;background:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.qs-community__actions{min-width:228px;display:flex;flex-direction:column;gap:12px}.qs-community__primary,.qs-community__secondary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:12px;font-size:.94rem;font-weight:700;transition:transform .2s ease,filter .2s ease}.qs-community__primary{color:#121212;background:linear-gradient(135deg,#fff,#dbeafe)}.qs-community__secondary{color:#fff;background:#ffffff0a;border:1px solid rgba(255,255,255,.12)}.qs-community__primary:hover,.qs-community__secondary:hover{transform:translateY(-1px);filter:brightness(1.05)}@media (max-width: 900px){.qs-community{padding:0 0 72px}.qs-community__box{flex-direction:column;align-items:flex-start;padding:24px}.qs-community__actions{width:100%;min-width:0}}

.astro-route-announcer{position:absolute;left:0;top:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;width:1px;height:1px}:root{--color-brand: #0066ff;--color-brand-hover: #0052cc;--color-brand-active: #004099;--color-brand-subtle: #e6f0ff;--color-brand-muted: #99c2ff;--gray-50: #fafafa;--gray-100: #f5f5f5;--gray-200: #e5e5e5;--gray-300: #d4d4d4;--gray-400: #a3a3a3;--gray-500: #737373;--gray-600: #525252;--gray-700: #404040;--gray-800: #262626;--gray-900: #171717;--gray-950: #0a0a0a;--color-text: var(--gray-900);--color-text-secondary: var(--gray-600);--color-text-tertiary: var(--gray-500);--color-text-inverse: #ffffff;--color-bg: #ffffff;--color-bg-subtle: var(--gray-50);--color-bg-muted: var(--gray-100);--color-bg-elevated: #ffffff;--color-bg-inverse: var(--gray-900);--color-border: var(--gray-200);--color-border-subtle: var(--gray-100);--color-border-strong: var(--gray-300);--color-success: #059669;--color-success-subtle: #ecfdf5;--color-warning: #d97706;--color-warning-subtle: #fffbeb;--color-error: #dc2626;--color-error-subtle: #fef2f2;--color-info: var(--color-brand);--color-info-subtle: var(--color-brand-subtle);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "Fira Code", "Consolas", monospace;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .9375rem;--text-md: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 2.5rem;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--leading-loose: 1.75;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-border: 0 0 0 1px var(--color-border);--shadow-border-hover: 0 0 0 1px var(--gray-300);--duration-fast: .1s;--duration-normal: .2s;--duration-slow: .3s;--ease-out: cubic-bezier(.25, .46, .45, .94);--ease-in-out: cubic-bezier(.45, 0, .55, 1);--content-width: 680px;--container-width: 1120px;--container-wide: 1280px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{margin:0;font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text);background:var(--color-bg)}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:var(--leading-tight)}p,ul,ol,dl,blockquote,pre,table,figure{margin:0}ul,ol{padding:0;list-style:none}a{color:inherit;text-decoration:none}img,video,svg{display:block;max-width:100%;height:auto}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:none;padding:0}.container{width:100%;max-width:var(--container-width);margin:0 auto;padding:0 var(--space-6)}.container--narrow{max-width:var(--content-width)}.container--wide{max-width:var(--container-wide)}@media (max-width: 640px){.container{padding:0 var(--space-4)}}.prose{max-width:var(--content-width);margin:0 auto;padding:var(--space-8) 0 var(--space-16)}.prose>*+*{margin-top:var(--space-5)}.prose h1{font-size:var(--text-3xl);font-weight:700;letter-spacing:-.02em;margin-bottom:var(--space-6)}.prose h2{font-size:var(--text-xl);font-weight:600;letter-spacing:-.01em;margin-top:var(--space-12);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.prose h3{font-size:var(--text-lg);font-weight:600;margin-top:var(--space-8);margin-bottom:var(--space-3)}.prose p{line-height:var(--leading-relaxed);color:var(--color-text-secondary)}.prose strong{font-weight:600;color:var(--color-text)}.prose a{color:var(--color-brand);text-decoration:underline;text-decoration-color:var(--color-brand-muted);text-underline-offset:2px;transition:text-decoration-color var(--duration-fast)}.prose a:hover{text-decoration-color:var(--color-brand)}.prose ul,.prose ol{padding-left:var(--space-5)}.prose ul{list-style:disc}.prose ol{list-style:decimal}.prose li{margin-top:var(--space-2);line-height:var(--leading-relaxed);color:var(--color-text-secondary)}.prose li::marker{color:var(--color-text-tertiary)}.prose blockquote{margin:var(--space-6) 0;padding:var(--space-4) var(--space-5);background:var(--color-bg-subtle);border-left:3px solid var(--color-border-strong);border-radius:0 var(--radius-md) var(--radius-md) 0}.prose blockquote p{color:var(--color-text-secondary)}.prose code{font-family:var(--font-mono);font-size:.875em;background:var(--color-bg-muted);padding:.125em .375em;border-radius:var(--radius-sm)}.prose table{width:100%;border-collapse:collapse;font-size:var(--text-sm)}.prose th,.prose td{padding:var(--space-3) var(--space-4);text-align:left;border-bottom:1px solid var(--color-border)}.prose th{font-weight:600;color:var(--color-text);background:var(--color-bg-subtle)}.prose td{color:var(--color-text-secondary)}.prose tr:last-child td{border-bottom:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);height:40px;padding:0 var(--space-5);font-size:var(--text-sm);font-weight:500;line-height:1;border-radius:var(--radius-md);transition:all var(--duration-fast) var(--ease-out);cursor:pointer;user-select:none;white-space:nowrap}.btn:focus-visible{outline:2px solid var(--color-brand);outline-offset:2px}.btn--primary{background:var(--color-brand);color:var(--color-text-inverse);border:none}.btn--primary:hover{background:var(--color-brand-hover)}.btn--primary:active{background:var(--color-brand-active);transform:scale(.98)}.btn--secondary{background:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border);box-shadow:var(--shadow-xs)}.btn--secondary:hover{background:var(--color-bg-subtle);border-color:var(--color-border-strong)}.btn--secondary:active{background:var(--color-bg-muted);transform:scale(.98)}.btn--ghost{background:transparent;color:var(--color-text-secondary);border:none}.btn--ghost:hover{background:var(--color-bg-subtle);color:var(--color-text)}.btn--sm{height:32px;padding:0 var(--space-3);font-size:var(--text-xs)}.btn--lg{height:48px;padding:0 var(--space-6);font-size:var(--text-base)}.btn:disabled,.btn--disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);transition:border-color var(--duration-fast),box-shadow var(--duration-fast)}.card:hover{border-color:var(--color-border-strong)}.card--interactive{cursor:pointer}.card--interactive:hover{box-shadow:var(--shadow-sm)}.card--interactive:active{transform:scale(.995)}.input{width:100%;height:40px;padding:0 var(--space-3);font-size:var(--text-sm);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--duration-fast),box-shadow var(--duration-fast)}.input:hover{border-color:var(--color-border-strong)}.input:focus{outline:none;border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-brand-subtle)}.input::placeholder{color:var(--color-text-tertiary)}.text-xs{font-size:var(--text-xs)}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-lg{font-size:var(--text-lg)}.text-xl{font-size:var(--text-xl)}.text-2xl{font-size:var(--text-2xl)}.text-center{text-align:center}.text-left{text-align:left}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.text-brand{color:var(--color-brand)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mt-12{margin-top:var(--space-12)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.grid{display:grid;gap:var(--space-4)}.grid--2{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:repeat(3,1fr)}.grid--4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}}@media (min-width: 769px) and (max-width: 1024px){.grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width: 768px){.hide-mobile{display:none!important}}@media (min-width: 769px){.hide-desktop{display:none!important}}.section{padding:var(--space-16) 0}.section--sm{padding:var(--space-12) 0}.section--lg{padding:var(--space-20) 0}.section--muted{background:var(--color-bg-subtle)}.section__header{max-width:560px;margin:0 auto var(--space-10);text-align:center}.section__title{font-size:var(--text-2xl);font-weight:600;letter-spacing:-.01em;margin-bottom:var(--space-3)}.section__desc{color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.main{min-height:calc(100vh - 120px)}@media print{.no-print{display:none!important}}

.header-music{position:sticky;top:0;z-index:100;background:#0a0a0fcc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.05)}.header-music__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;max-width:1280px;margin:0 auto;padding:0 2rem;height:64px}.header-music__logo{display:flex;align-items:center;gap:.625rem;color:#fff;font-weight:600;font-size:1rem;text-decoration:none;flex-shrink:0;transition:transform .2s}.header-music__logo:hover{transform:scale(1.05)}.header-music__logo-icon{width:auto;height:25px}.header-music__logo-text{letter-spacing:-.02em;font-weight:700}.header-music__nav{display:flex;align-items:center;gap:.5rem}.header-music__link{display:flex;align-items:center;gap:.375rem;padding:.5rem 1rem;font-size:.9375rem;font-weight:500;color:#ffffffb3;border-radius:8px;transition:all .2s;position:relative}.header-music__link:hover{color:#fff;background:#ffffff0d}.header-music__link--active{color:#fff}.header-music__link--active:after{content:"";position:absolute;bottom:0;left:1rem;right:1rem;height:2px;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:2px}.header-music__link--cta{margin-left:.5rem;padding:.5rem 1.25rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff!important;border-radius:8px;box-shadow:0 4px 12px #667eea4d}.header-music__link--cta:hover{background:linear-gradient(135deg,#7b92f0,#8b5fb8);box-shadow:0 6px 16px #667eea66;transform:translateY(-1px)}.header-music__link--cta:after{display:none}.header-music__link-arrow{width:14px;height:14px;transition:transform .2s}.header-music__link--cta:hover .header-music__link-arrow{transform:translate(2px)}.header-music__ext{display:flex;align-items:center;gap:1rem;margin-left:auto;flex-shrink:0}.header-music__ext a{font-size:.8125rem;color:#ffffff73;text-decoration:none;white-space:nowrap;transition:color .2s}.header-music__ext a:hover{color:#ffffffe6}.header-music__lang{display:flex;align-items:center;gap:.5rem;font-size:.875rem;flex-shrink:0}.header-music__lang-link{color:#ffffff80;transition:color .2s;font-weight:500}.header-music__lang-link:hover{color:#ffffffe6}.header-music__lang-link--active{color:#fff;background:#ffffff1a;padding:.25rem .5rem;border-radius:4px}.header-music__lang-sep{color:#fff3}@media (max-width: 768px){.header-music__inner{height:56px;padding:0 1rem}.header-music__logo-text{display:none}.header-music__nav{gap:0}.header-music__link{padding:.5rem .625rem;font-size:.8125rem}.header-music__link--cta{padding:.5rem .875rem}.header-music__ext,.header-music__lang{display:none}}.footer-music{background:var(--music-bg-darker, #05050a);color:#ffffff73;margin-top:0;position:relative}.footer-music__divider{height:1px;background:linear-gradient(90deg,transparent 0%,rgba(102,126,234,.3) 50%,transparent 100%)}.footer-music__inner{max-width:1280px;margin:0 auto;padding:2rem 2rem 1.5rem;text-align:center}.footer-music__legal{margin-bottom:1rem}.footer-music__line{font-size:.75rem;line-height:1.8;margin:0;color:#ffffff59}.footer-music__line a{color:#ffffff80;text-decoration:none;transition:color .2s}.footer-music__line a:hover{color:#fffc}.footer-music__friends{font-size:.75rem;color:#ffffff4d;padding-top:1rem;border-top:1px solid rgba(255,255,255,.05)}.footer-music__friends-label{color:#fff6}.footer-music__friends a{color:#fff6;text-decoration:none;margin:0 .4rem;transition:color .2s}.footer-music__friends a:hover{color:#fffc}.footer-music__version{font-size:.6rem;color:#fff3;margin-top:.75rem;letter-spacing:.02em}@media (max-width: 768px){.footer-music__inner{padding:1.5rem 1rem 1rem}}:root{--music-gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--music-gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--music-gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--music-gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);--music-gradient-cool: linear-gradient(135deg, #30cfd0 0%, #330867 100%);--music-gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);--music-primary: #667eea;--music-primary-light: #8b9ef7;--music-primary-dark: #4d5eb8;--music-secondary: #764ba2;--music-accent: #f5576c;--music-accent-glow: #f5576c80;--music-bg-dark: #0a0a0f;--music-bg-darker: #05050a;--music-bg-card: #121218;--music-bg-card-hover: #1a1a22;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, .37);--neon-glow: 0 0 10px var(--music-accent-glow), 0 0 20px var(--music-accent-glow), 0 0 40px var(--music-accent-glow);--shadow-float: 0 20px 60px rgba(0, 0, 0, .3);--shadow-hover: 0 25px 70px rgba(0, 0, 0, .4)}body{background:var(--music-bg-dark);color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif}.hero-music{position:relative;min-height:85vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--music-bg-darker)}.hero-music:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:var(--music-gradient-primary);opacity:.15;animation:rotate 30s linear infinite;border-radius:40%}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.hero-music:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,transparent 0%,var(--music-bg-darker) 70%);pointer-events:none}.hero-music__content{position:relative;z-index:1;text-align:center;max-width:800px;padding:0 2rem}.hero-music__badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1.25rem;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:50px;font-size:.875rem;font-weight:500;margin-bottom:2rem;animation:fadeInUp .8s ease-out}.hero-music__title{font-size:clamp(2.5rem,8vw,5rem);font-weight:900;letter-spacing:-.03em;line-height:1.1;margin-bottom:1.5rem;background:linear-gradient(135deg,#fff,#a0a0ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:fadeInUp .8s ease-out .2s both}.hero-music__desc{font-size:clamp(1.125rem,2vw,1.375rem);color:#ffffffb3;line-height:1.6;margin-bottom:2.5rem;animation:fadeInUp .8s ease-out .4s both}.hero-music__actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;animation:fadeInUp .8s ease-out .6s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.btn-music{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.75rem;height:56px;padding:0 2rem;font-size:1rem;font-weight:600;border-radius:28px;transition:all .3s cubic-bezier(.4,0,.2,1);overflow:hidden;border:none;cursor:pointer}.btn-music:before{content:"";position:absolute;inset:0;background:inherit;opacity:0;transition:opacity .3s}.btn-music:hover:before{opacity:1}.btn-music--primary{background:var(--music-gradient-primary);color:#fff;box-shadow:0 10px 30px #667eea66}.btn-music--primary:hover{transform:translateY(-2px);box-shadow:0 15px 40px #667eea99}.btn-music--primary:active{transform:translateY(0)}.btn-music--accent{background:var(--music-gradient-secondary);color:#fff;box-shadow:0 10px 30px #f5576c66}.btn-music--accent:hover{transform:translateY(-2px);box-shadow:0 15px 40px #f5576c99}.btn-music--glass{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);color:#fff}.btn-music--glass:hover{background:#ffffff1a;border-color:#fff3;transform:translateY(-2px)}.btn-play{width:64px;height:64px;border-radius:50%;background:var(--music-gradient-primary);display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;box-shadow:var(--shadow-float);transition:all .3s}.btn-play:hover{transform:scale(1.1);box-shadow:var(--shadow-hover)}.btn-play svg{width:24px;height:24px;color:#fff;margin-left:3px}.card-music{position:relative;background:var(--music-bg-card);border:1px solid rgba(255,255,255,.05);border-radius:20px;padding:2rem;transition:all .4s cubic-bezier(.4,0,.2,1);overflow:hidden}.card-music:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--music-gradient-primary);opacity:0;transition:opacity .3s}.card-music:hover{background:var(--music-bg-card-hover);border-color:#ffffff1a;transform:translateY(-8px);box-shadow:var(--shadow-float)}.card-music:hover:before{opacity:1}.card-glass{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;padding:2rem;box-shadow:var(--glass-shadow)}.card-feature{text-align:center;padding:2.5rem 2rem}.card-feature__icon{width:64px;height:64px;margin:0 auto 1.5rem;display:flex;align-items:center;justify-content:center;background:var(--music-gradient-primary);border-radius:20px;color:#fff;transition:transform .3s}.card-music:hover .card-feature__icon{transform:scale(1.1) rotate(5deg)}.card-feature__icon svg{width:32px;height:32px}.card-feature__title{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;color:#fff}.card-feature__desc{color:#fff9;line-height:1.6}.section-music{padding:6rem 0;position:relative}.section-music--dark{background:var(--music-bg-darker)}.section-music--gradient{background:linear-gradient(180deg,var(--music-bg-dark) 0%,var(--music-bg-darker) 100%)}.section-header-music{text-align:center;max-width:640px;margin:0 auto 4rem}.section-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--glass-bg);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:50px;font-size:.875rem;font-weight:500;color:var(--music-primary-light);margin-bottom:1rem}.section-title-music{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.02em;line-height:1.2;margin-bottom:1rem;background:linear-gradient(135deg,#fff,#c0c0ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-desc-music{font-size:1.125rem;color:#fff9;line-height:1.6}.platform-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:3rem 0}.platform-card{position:relative;background:var(--music-bg-card);border:2px solid rgba(255,255,255,.05);border-radius:20px;padding:2rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);overflow:hidden}.platform-card:before{content:"";position:absolute;inset:-2px;background:var(--music-gradient-primary);border-radius:20px;opacity:0;z-index:-1;transition:opacity .3s}.platform-card:hover{transform:translateY(-5px);border-color:transparent}.platform-card:hover:before{opacity:1}.platform-icon{width:56px;height:56px;margin-bottom:1.25rem;padding:12px;background:var(--glass-bg);border-radius:14px;display:flex;align-items:center;justify-content:center}.platform-icon svg{width:100%;height:100%;color:var(--music-primary-light)}.platform-name{font-size:1.25rem;font-weight:600;color:#fff;margin-bottom:.5rem}.platform-desc{font-size:.9375rem;color:#ffffff80;margin-bottom:1.25rem}.platform-btn{width:100%;height:44px;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:12px;color:#fff;font-weight:500;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s}.platform-card:hover .platform-btn{background:#ffffff1a;border-color:#fff3}.faq-music{max-width:800px;margin:0 auto}.faq-item-music{background:var(--music-bg-card);border:1px solid rgba(255,255,255,.05);border-radius:16px;margin-bottom:1rem;overflow:hidden;transition:all .3s}.faq-item-music:hover{border-color:#ffffff1a}.faq-item-music[open]{border-color:var(--music-primary)}.faq-question-music{display:flex;align-items:center;justify-content:space-between;padding:1.5rem;cursor:pointer;list-style:none;user-select:none}.faq-question-music::-webkit-details-marker{display:none}.faq-question-text{font-size:1.0625rem;font-weight:500;color:#fff}.faq-icon{width:20px;height:20px;color:#fff6;transition:transform .3s,color .3s;flex-shrink:0}.faq-item-music[open] .faq-icon{transform:rotate(180deg);color:var(--music-primary)}.faq-answer-music{padding:0 1.5rem 1.5rem;color:#fff9;line-height:1.6}.wave-bg{position:absolute;bottom:0;left:0;width:100%;height:200px;overflow:hidden;pointer-events:none}.wave{position:absolute;bottom:0;left:0;width:200%;height:100%;background:var(--music-gradient-primary);opacity:.1;animation:wave 10s linear infinite;border-radius:50% 50% 0 0}.wave:nth-child(2){animation-duration:15s;animation-delay:-5s;opacity:.05}@keyframes wave{0%{transform:translate(0) translateY(0)}50%{transform:translate(-25%) translateY(-10px)}to{transform:translate(-50%) translateY(0)}}@media (max-width: 768px){.hero-music{min-height:70vh}.hero-music__title{font-size:2.5rem}.hero-music__desc{font-size:1.125rem}.hero-music__actions{flex-direction:column;width:100%}.btn-music{width:100%;max-width:320px}.section-music{padding:4rem 0}.section-header-music{margin-bottom:3rem}.platform-selector{grid-template-columns:1fr}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.music-loader{display:flex;gap:.5rem;align-items:flex-end;height:40px}.music-loader__bar{width:4px;background:var(--music-gradient-primary);border-radius:4px;animation:musicBar 1.2s ease-in-out infinite}.music-loader__bar:nth-child(1){animation-delay:0s}.music-loader__bar:nth-child(2){animation-delay:.1s}.music-loader__bar:nth-child(3){animation-delay:.2s}.music-loader__bar:nth-child(4){animation-delay:.3s}@keyframes musicBar{0%,to{height:10px}50%{height:40px}}.skip-link{position:absolute;top:-100px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.5rem 1rem;border-radius:8px;font-size:.875rem;font-weight:500;z-index:1000;transition:top .2s}.skip-link:focus{top:1rem}.main-music{min-height:100vh}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 2rem}.container--narrow{max-width:800px}@media (max-width: 768px){.container{padding:0 1rem}}@media (max-width: 768px){.hide-mobile{display:none!important}}@media (min-width: 769px){.hide-desktop{display:none!important}}html{scroll-behavior:smooth}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}

.qishui-hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;justify-content:center;overflow:hidden}.qishui-hero__bg{position:absolute;inset:0;background-image:url(../images/background.webp);background-size:cover;background-position:center;z-index:0}.qishui-hero__mask{position:absolute;inset:0;background:#00000059;z-index:1}.qishui-hero__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;gap:40px;width:100%;max-width:1200px;padding:0 2rem}.qishui-hero__download{width:400px;flex-shrink:0;display:flex;flex-direction:column}.qishui-hero__logo{width:305px;height:auto}.qishui-hero__slogan{color:#ffffff80;font-weight:500;font-size:18px;letter-spacing:10px;margin-top:16px;margin-left:16px;margin-bottom:30px}.qishui-dl-btn{height:48px;border-radius:8px;background-color:#ffffffd9;display:flex;justify-content:center;align-items:center;color:#121212;font-size:16px;font-weight:500;flex-grow:1;flex-shrink:0;gap:8px;cursor:pointer;text-decoration:none;position:relative;transition:background .2s}.qishui-dl-btn:hover{background:#fff}.qishui-dl-btn--android{cursor:default}.qishui-dl-btn--android:hover{border-bottom-left-radius:0;border-bottom-right-radius:0}.qishui-dl-btn--android:hover:before{content:"";width:100%;height:152px;background-color:#fff;border-radius:0 0 9px 9px;top:48px;position:absolute;z-index:10}.qishui-dl-btn--android:hover:after{content:"";width:120px;height:120px;background-image:url(../images/qrcode-android.svg);background-repeat:no-repeat;background-size:100% 100%;position:absolute;top:60px;left:50%;transform:translate(-50%);z-index:11}.qishui-dl-btn--ios{cursor:default}.qishui-dl-btn--ios:hover{border-bottom-left-radius:0;border-bottom-right-radius:0}.qishui-dl-btn--ios:hover:before{content:"";width:100%;height:152px;background-color:#fff;border-radius:0 0 9px 9px;top:48px;position:absolute;z-index:10}.qishui-dl-btn--ios:hover:after{content:"";width:120px;height:120px;background-image:url(../images/qrcode-ios.svg);background-repeat:no-repeat;background-size:100% 100%;position:absolute;top:60px;left:50%;transform:translate(-50%);z-index:11}.qishui-dl-row{margin-top:16px;display:flex;gap:16px}.qishui-dl-row .qishui-dl-btn{width:0}.qishui-more{display:flex;align-items:center;color:#ffffffd9;font-size:14px;font-weight:400;margin-top:20px;gap:4px;cursor:pointer;transition:color .2s;text-decoration:none}.qishui-more:hover{color:#fff}.qishui-hero__preview{display:flex;width:50%;position:relative;align-items:center;justify-content:flex-end}.qishui-preview-mac{width:100%;height:auto}.qishui-preview-phone{position:absolute;width:20%;right:0;height:auto}.qishui-features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.qishui-compat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}.qishui-compat-card{text-align:center;padding:2rem 1rem}.qishui-compat-card img{margin:0 auto .75rem;opacity:.85}.qishui-compat-card h3{color:#fff;font-size:1rem;font-weight:600;margin-bottom:.5rem}.qishui-compat-card p{color:#ffffff80;font-size:.82rem;line-height:1.6}@media (max-width: 900px){.qishui-hero__inner{flex-direction:column;text-align:center;gap:2rem;padding-top:80px}.qishui-hero__download{width:100%;max-width:360px;align-items:center}.qishui-hero__preview{width:80%;justify-content:center}.qishui-hero{height:auto;min-height:100vh;padding:2rem 0}.qishui-features-grid,.qishui-compat-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 520px){.qishui-features-grid,.qishui-compat-grid{grid-template-columns:1fr}.qishui-hero__logo{width:200px}.qishui-hero__slogan{font-size:14px;letter-spacing:6px}}