:root{color-scheme:dark;--navy:#071a3d;--ink:#f2f7ff;--muted:#aec2df;--cyan:#18e7ff;--line:#ffffff24;--lime:#b8ff3d;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--navy);color:var(--ink);font-size:1rem;line-height:1.65}a{color:inherit}a:focus-visible{outline:3px solid var(--lime);outline-offset:6px}img{display:block;max-width:100%}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:32px}.brand{display:flex;align-items:center;gap:14px;text-decoration:none}.brand img{border-radius:14px}.brand strong{display:block;font-size:1.4rem;line-height:1.4;letter-spacing:.06em}.brand small{display:block;font-size:.75rem;letter-spacing:.17em;color:var(--muted)}.edition{font-size:.75rem;letter-spacing:.16em;color:var(--muted);border-bottom:1px solid var(--cyan);padding-block:8px}
.hero{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);align-items:center;gap:72px;padding-block:32px 64px}.intro{min-width:0}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--cyan);font-size:.875rem;letter-spacing:.13em;margin:0 0 28px}.eyebrow>span{width:7px;height:7px;flex:none;border-radius:50%;background:var(--cyan)}h1{font-size:clamp(2.7rem,4.9vw,4.4rem);line-height:1.2;letter-spacing:-.04em;margin:0;font-weight:850}h1 em{font-style:normal;color:var(--cyan)}.period{color:var(--lime);margin-left:4px}.description{font-size:1.0625rem;color:var(--muted);line-height:1.95;margin:26px 0 30px}.download-area{max-width:410px}.download-button{display:flex;align-items:center;gap:12px;justify-content:center;min-height:66px;background:var(--cyan);color:var(--navy);border-radius:12px;padding:16px 22px;text-decoration:none;font-size:1.125rem;font-weight:750;transition:background .15s,transform .15s}.download-button:hover{background:#64f0ff;transform:translateY(-2px)}.button-arrow{margin-left:auto;font-size:1.5rem}.app-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:0 8px;font-size:.75rem;color:var(--muted);margin:14px 0 0}.download-note{margin:8px 0 0;text-align:center;font-size:.75rem;color:var(--muted)}.device-message{border:1px solid #18e7ff66;border-radius:10px;background:#102b5c;padding:12px 16px;font-size:.875rem;color:var(--ink);margin:14px 0 0}.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding:24px 0 0;margin:36px 0 0;list-style:none;border-top:1px solid var(--line)}.features li{display:flex;flex-direction:column;gap:4px;font-size:.875rem;color:var(--muted)}.features strong{font-size:1rem;color:var(--ink);font-weight:600}.feature-number{font-size:.75rem;color:var(--cyan);font-variant-numeric:tabular-nums;margin-bottom:6px}
.poster{min-width:0;margin:0;position:relative;border:1px solid #6cb9ff52;border-radius:28px;overflow:hidden;box-shadow:0 24px 90px #0005;background:#084ab8}.poster>img{width:100%;height:auto;aspect-ratio:1080/2340;object-fit:cover;max-height:650px}.poster figcaption{position:absolute;inset:auto 0 0;padding:40px 24px 22px;background:linear-gradient(transparent,#041830e8);display:flex;justify-content:space-between;align-items:end;gap:12px;font-size:.75rem;color:#fff}.poster figcaption>span:first-child{letter-spacing:.14em}.poster b{color:var(--cyan);font-size:1.25rem;margin-left:4px}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:24px 30px;border-top:1px solid var(--line);color:var(--muted);font-size:.8125rem}.site-footer p{margin:0}.site-footer nav{display:flex;align-items:center;gap:18px}.site-footer a{text-decoration:none;white-space:nowrap}.site-footer a:hover{color:var(--cyan);text-decoration:underline}.site-footer nav>span{color:#5c7496}
@media(min-width:1500px){.hero{padding-block:48px 72px;gap:100px}.poster>img{max-height:690px}}
@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.hero{gap:36px;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr)}h1{font-size:3rem}.features{gap:10px}.poster>img{min-height:540px}}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.site-header{padding-block:22px}.brand img{width:44px;height:44px;border-radius:11px}.brand strong{font-size:1.125rem}.brand small{font-size:.75rem;letter-spacing:.12em}.edition{font-size:.75rem;letter-spacing:.03em}.hero{display:flex;flex-direction:column;gap:34px;padding-block:24px 32px}.intro{width:100%}.eyebrow{margin-bottom:20px;letter-spacing:.08em}h1{font-size:clamp(2.65rem,9.6vw,4rem);line-height:1.23}.description{margin:20px 0 26px;font-size:1rem}.download-area{max-width:none}.download-button{min-height:62px}.features{margin-top:28px;gap:10px;padding-top:20px}.features li{font-size:.8125rem}.features strong{font-size:.9375rem}.poster{width:100%;border-radius:20px}.poster>img{aspect-ratio:1.18;min-height:0;max-height:none;object-fit:cover;object-position:center 45%}.poster figcaption{padding:36px 18px 16px}.site-footer{flex-direction:column-reverse;align-items:flex-start;gap:14px;padding-block:22px 28px}.site-footer nav{font-size:.875rem}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.edition{display:none}h1{font-size:2.6rem}.app-meta{column-gap:6px}.features li{font-size:.75rem}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}.download-button:hover{transform:none}}