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#e7eaf0;margin-top:18px}.okbtn[data-v-22468834]{border:none;background:var(--volt, #0a6cd6);color:#fff;border-radius:999px;padding:8px 30px;font-size:13.5px;font-weight:600;cursor:pointer;transition:filter .15s ease}.okbtn[data-v-22468834]:hover{filter:brightness(1.08)}.lt-enter-active[data-v-22468834],.lt-leave-active[data-v-22468834]{transition:opacity .22s ease}.lt-enter-active .letter[data-v-22468834],.lt-leave-active .letter[data-v-22468834]{transition:transform .22s ease}.lt-enter-from[data-v-22468834],.lt-leave-to[data-v-22468834]{opacity:0}.lt-enter-from .letter[data-v-22468834],.lt-leave-to .letter[data-v-22468834]{transform:translateY(14px) scale(.985)}@media(max-width:560px){.letter[data-v-22468834]{padding:22px 18px 18px}.docno[data-v-22468834]{display:none}}:root{--bg-void: #ffffff;--bg-deep: #f5f5f7;--bg-deep-2: #fbfbfd;--panel: #ffffff;--panel-strong: #f5f5f7;--panel-solid: #ffffff;--hairline: #e3e3e8;--hairline-strong: #c6c6cd;--volt: #0071e3;--volt-deep: #0062c4;--volt-soft: #e8f1fe;--mint: #1a8f4b;--rose: #d23b3b;--brand-ember: #e0533d;--ink: #1d1d1f;--ink-2: #424245;--ink-3: #6e6e73;--ink-4: #86868b;--fs-display: clamp(40px, 6vw, 80px);--fs-h1: clamp(32px, 4.2vw, 54px);--fs-h2: clamp(26px, 3.2vw, 40px);--fs-lede: clamp(17px, 1.8vw, 21px);--fs-body: 16.5px;--fs-small: 13px;--radius-sm: 10px;--radius: 14px;--radius-lg: 20px;--radius-xl: 28px;--radius-pill: 999px;--shell: 1024px;--shell-wide: 1180px;--section-y: 104px;--header-h: 70px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 3px 10px -3px rgba(16, 24, 40, .07);--shadow-md: 0 2px 4px rgba(16, 24, 40, .04), 0 12px 28px -10px rgba(16, 24, 40, .16);--shadow-lg: 0 4px 10px rgba(16, 24, 40, .05), 0 24px 56px -20px rgba(16, 24, 40, .24);--shadow-xl: 0 8px 20px rgba(16, 24, 40, .06), 0 48px 100px -32px rgba(16, 24, 40, .32);--bg-dark: #161617;--bg-dark-2: #1f1f22;--ink-on-dark: #f5f5f7;--ink-on-dark-2: #a1a1a6;--hairline-on-dark: rgba(255, 255, 255, .12);--panel-on-dark: rgba(255, 255, 255, .05);--traffic-red: #ff5f57;--traffic-yellow: #febc2e;--traffic-green: #28c840;--ease: cubic-bezier(.2, .6, .35, 1);--ease-soft: cubic-bezier(.4, 0, .2, 1);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;--mono: "Cascadia Mono", Consolas, "Courier New", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg-void);color:var(--ink);font-family:var(--font);font-size:var(--fs-body);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}#app{position:relative}h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.02em}p{margin:0}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}::selection{background:#cfe4ff;color:#0b2545}.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}.shell-wide{max-width:var(--shell-wide)}.section{position:relative;padding:var(--section-y) 0}.section+.section{border-top:1px solid var(--hairline)}.eyebrow{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--radius-pill);border:1px solid var(--hairline);background:var(--panel-strong);font-size:12.5px;font-weight:600;color:var(--ink-3)}.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--volt)}.section-head{margin-bottom:44px}.section-title{font-size:var(--fs-h2);letter-spacing:-.015em;color:var(--ink)}.section-sub{margin-top:14px;font-size:var(--fs-lede);line-height:1.6;color:var(--ink-3)}.display{font-size:var(--fs-display);font-weight:700;line-height:1.06;letter-spacing:-.02em;color:var(--ink)}.lede{font-size:var(--fs-lede);line-height:1.55;color:var(--ink-3)}.center{text-align:center}.narrow{max-width:680px;margin-left:auto;margin-right:auto}.card{border-radius:var(--radius-lg);border:1px solid var(--hairline);background:var(--panel);overflow:hidden;box-shadow:var(--shadow-sm)}.volt-text{color:var(--volt)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;white-space:nowrap;transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn:active:not(:disabled){transform:translateY(0) scale(.97)}.btn:focus-visible{outline:2px solid var(--volt);outline-offset:3px}.btn-primary{color:#fff;background:var(--volt);border:1px solid var(--volt);box-shadow:0 1px 2px #003c822e}.btn-primary:hover:not(:disabled){background:var(--volt-deep);border-color:var(--volt-deep);transform:translateY(-1px);box-shadow:0 8px 22px -8px #005ac880}.btn-ghost{color:var(--ink);border:1px solid var(--hairline-strong);background:var(--panel)}.btn-ghost:hover:not(:disabled){border-color:var(--ink-3);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.btn-lg{height:50px;padding:0 28px;font-size:16px}.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}.reveal.in{opacity:1;transform:none}.win{width:100%;border-radius:var(--radius-lg);border:1px solid var(--hairline);background:#fff;box-shadow:var(--shadow-lg);overflow:hidden}.win-bar{display:flex;align-items:center;gap:8px;padding:12px 14px;background:var(--bg-deep);border-bottom:1px solid var(--hairline)}.wdot{width:10px;height:10px;border-radius:50%;background:var(--traffic-red)}.wdot:nth-child(2){background:var(--traffic-yellow)}.wdot:nth-child(3){background:var(--traffic-green)}.win-title{margin-left:8px;font-size:13px;font-weight:600;color:var(--ink-3)}.win-body{padding:20px}.win-tabs{display:flex;gap:8px;margin-bottom:18px}.wtab{padding:6px 14px;border-radius:8px;font-size:13px;color:var(--ink-3);border:1px solid var(--hairline)}.wtab.on{color:#fff;background:var(--volt);border-color:var(--volt)}.win-prog{height:8px;border-radius:999px;background:var(--bg-deep);overflow:hidden}.win-prog-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,#4f8ff7,#6fa8ff);animation:winfill 3.2s var(--ease-soft) infinite}@keyframes winfill{0%{width:18%}55%{width:82%}to{width:82%}}.band-dark{background:var(--bg-dark);color:var(--ink-on-dark);border-top:none}.band-dark .section-title{color:var(--ink-on-dark)}.band-dark .section-sub{color:var(--ink-on-dark-2)}.band-dark .eyebrow{background:#ffffff0f;border-color:#ffffff29;color:var(--ink-on-dark-2)}.band-dark .btn-ghost{color:var(--ink-on-dark);border-color:#ffffff47;background:transparent}.band-dark .btn-ghost:hover:not(:disabled){border-color:#ffffff8c;background:#ffffff0f}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d4d4da;border-radius:999px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:#b6b6be;background-clip:content-box}@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}@media(max-width:720px){:root{--section-y: 56px}.shell{padding:0 18px}}