@layer theme{:root,:host{--font-sans:"Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{color:#edf4f1;font-family:var(--font-sans);font-synthesis:none;text-rendering:optimizelegibility;--bg:#0b0f0f;--bg-elevated:#0f1414;--panel:#121818;--panel-strong:#182020;--line:#293333;--line-soft:#1d2626;--text:#edf4f1;--muted:#96a6a3;--muted-strong:#b7c4c1;--accent:#69dcc7;--accent-strong:#8ae7d5;--accent-dark:#102e2a;--warning:#f0b875;--error:#ef9b8f;--shell:min(1200px, calc(100vw - 48px) );background:#0b0f0f}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:86px}body{background:radial-gradient(circle at 82% 8%,#69dcc713,transparent 24rem),var(--bg);min-width:320px;color:var(--text);margin:0;overflow-x:hidden}body,button,a{-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.skip-link{z-index:100;background:var(--accent);color:#07110f;border-radius:10px;padding:10px 14px;font-size:14px;font-weight:700;transition:transform 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a{color:var(--muted-strong);font-size:14px;transition:color .16s}.desktop-nav a:hover{color:var(--text)}.nav-download{color:var(--text);border:1px solid #3a4846;border-radius:10px;justify-self:end;align-items:center;gap:8px;padding:10px 13px;font-size:13px;font-weight:650;transition:border-color .16s,background .16s,transform .12s;display:inline-flex}.nav-download:hover{background:#151c1c;border-color:#5a716d}.nav-download:active,.button:active,.download-action:active{transform:translateY(1px)}.mobile-menu-button,.mobile-navigation{display:none}.hero-section{border-bottom:1px solid var(--line-soft);flex-direction:column;justify-content:center;min-height:calc(100dvh - 72px);padding:52px 0 22px;display:flex}.hero-grid{grid-template-columns:minmax(0,.88fr) minmax(520px,1.12fr);align-items:center;gap:clamp(44px,7vw,100px);display:grid}.hero-copy{max-width:570px}.eyebrow{color:var(--accent-strong);letter-spacing:.02em;align-items:center;gap:7px;font-size:13px;font-weight:650;display:inline-flex}.hero-copy h1{letter-spacing:-.065em;max-width:10ch;margin:23px 0 22px;font-size:clamp(46px,5.4vw,72px);font-weight:730;line-height:1.03}.hero-copy>p{max-width:33rem;color:var(--muted-strong);margin:0;font-size:clamp(16px,1.55vw,19px);line-height:1.85}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:34px;display:flex}.button{white-space:nowrap;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 18px;font-size:14px;font-weight:720;transition:background .17s,border-color .17s,color .17s,transform 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17px}.timeline-meta,.stage-controls{color:#80918e;justify-content:space-between;align-items:center;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:9px;display:flex}.waveform{align-items:center;gap:4px;height:45px;margin:6px 0 9px;display:flex;position:relative}.waveform>span{background:var(--accent);transform-origin:50%;border-radius:2px;flex:1;min-height:3px}.waveform>i{background:#f3faf8;width:1px;height:100%;position:absolute;top:0;left:55%;box-shadow:0 0 10px #ffffff59}.play-control{color:var(--accent);align-items:center;gap:6px;display:inline-flex}.stage-caption{color:#778683;background:#0a0e0ed1;border:1px solid #2e3a38;border-radius:6px;padding:5px 7px;font-size:9px;position:absolute;top:59px;right:10px}.trust-row{border-top:1px solid var(--line-soft);grid-template-columns:repeat(3,1fr);margin-top:clamp(36px,6vh,72px);display:grid}.trust-row span{color:#91a19e;align-items:center;gap:10px;min-height:62px;font-size:12px;display:flex}.trust-row 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b{color:#77908b;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:9px;font-weight:400;position:absolute;bottom:8px;right:10px}.mini-wave{align-items:center;gap:8px;height:245px;display:flex;position:absolute;bottom:48px;left:42px;right:42px}.mini-wave span{background:#69dcc78a;border-radius:3px;flex:1;min-height:8px}.mini-wave span:nth-child(-n+7){background:var(--accent)}.mini-wave i{background:#f0f6f4;width:1px;height:100%;position:absolute;left:59%}.score-list,.library-stack{position:absolute;bottom:27px;left:28px;right:28px}.score-list span,.library-stack span{color:#91a39f;border-top:1px solid #2b3735;justify-content:space-between;align-items:center;padding:12px 2px;font-size:11px;display:flex}.score-list i{font-style:normal}.score-list b{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.library-stack span:last-child{color:var(--accent);justify-content:flex-start;gap:7px}.workflow-section{border-top:1px solid var(--line-soft);background:#0d1212}.section-heading.compact{margin-bottom:68px}.section-heading.compact h2{margin-top:0}.workflow-list{grid-template-columns:repeat(4,1fr);margin:0;padding:0;list-style:none;display:grid}.workflow-list li{border-top:1px solid #3b4745;min-height:235px;padding:25px 28px 0 0;position:relative}.workflow-list li+li{border-left:1px solid var(--line-soft);padding-left:28px}.step-top{color:var(--accent);justify-content:space-between;align-items:center;display:flex}.step-index{color:#91a39f;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px}.workflow-list h3{letter-spacing:-.025em;margin:39px 0 10px;font-size:19px}.workflow-list p{color:var(--muted);margin:0;font-size:13px;line-height:1.75}.step-arrow{color:#596865;box-sizing:content-box;background:#0d1212;padding:0 4px;position:absolute;top:-9px;right:10px}.privacy-section{overflow:hidden}.privacy-grid{grid-template-columns:.86fr 1.14fr;align-items:center;gap:clamp(70px,10vw,150px);display:grid}.privacy-icon{background:var(--accent-dark);width:56px;height:56px;color:var(--accent);border:1px solid #36504a;border-radius:16px;place-items:center;display:grid}.privacy-copy h2{max-width:11ch;margin-top:29px}.privacy-copy>a{color:var(--accent);align-items:center;gap:8px;margin-top:28px;font-size:14px;font-weight:650;display:inline-flex}.data-route{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:34px;position:relative}.route-node{min-height:80px;color:var(--accent);background:#0d1312;border:1px solid #33403e;border-radius:14px;align-items:center;gap:17px;padding:16px 19px;display:flex}.route-node span{flex-direction:column;gap:4px;display:flex}.route-node b{color:var(--text);font-size:14px}.route-node small{color:#81928f;font-size:11px}.route-line{border-left:1px solid #3b504c;height:56px;margin-left:32px;position:relative}.route-line span{color:#778885;font-size:10px;position:absolute;top:18px;left:14px}.route-branch{margin-top:28px;padding-left:52px;position:relative}.route-branch>span{border-bottom:1px dashed #3b504c;border-left:1px dashed #3b504c;border-radius:0 0 0 12px;width:53px;height:41px;position:absolute;top:-28px;left:0}.route-node.optional{color:#84938f;border-style:dashed}.data-route>p{color:#7f918e;align-items:center;gap:8px;margin:25px 0 0;font-size:11px;display:flex}.data-route>p svg{color:var(--accent)}.download-section{border-top:1px solid var(--line-soft);background:#0e1313}.download-grid{grid-template-columns:.76fr 1.24fr;gap:clamp(60px,9vw,130px);display:grid}.download-copy{align-self:start;position:sticky;top:112px}.download-copy h2{max-width:10ch}.download-copy dl{margin:35px 0 0}.download-copy dl>div{border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding:13px 0;font-size:12px;display:flex}.download-copy dt{color:#7f918d}.download-copy dd{color:#c4cecc;margin:0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.signature-note{color:var(--warning);background:#f0b8750e;border:1px solid #f0b87552;border-radius:14px;gap:12px;margin-top:27px;padding:15px;display:flex}.signature-note>p{flex-direction:column;gap:4px;margin:0;display:flex}.signature-note b{color:#ecc99e;font-size:12px}.signature-note span{color:#ad9c86;font-size:11px;line-height:1.6}.download-panel{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:10px 24px}.download-card{grid-template-columns:auto 1fr auto;align-items:center;gap:19px;padding:25px 0;display:grid}.download-card+.download-card{border-top:1px solid var(--line)}.download-file-icon{width:52px;height:52px;color:var(--accent);background:#0d1312;border:1px solid #35413f;border-radius:14px;place-items:center;display:grid}.download-title-row{align-items:center;gap:10px;display:flex}.download-title-row h3{margin:0;font-size:15px}.download-title-row>span{color:var(--accent);border:1px solid #35534d;border-radius:999px;padding:3px 7px;font-size:9px}.download-file-info>p:not(.download-error):not(.download-started){color:#7f8f8c;overflow-wrap:anywhere;margin:6px 0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px}.download-meta{color:#83938f;align-items:center;gap:10px;font-size:10px;display:flex}.download-meta button{color:#82928f;cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:2px 0;display:inline-flex}.download-meta button:hover{color:var(--text)}.download-meta code{font-size:9px}.download-action{min-width:88px;min-height:42px;color:var(--accent-strong);cursor:pointer;background:#13231f;border:1px solid #41615b;border-radius:10px;justify-content:center;align-items:center;gap:8px;font-size:12px;font-weight:700;transition:background .16s,border-color .16s,transform 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