* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
:root { --gold:#c7aa72; --gold-light:#ead9b3; --jade:#102c27; --red:#9f332b; }
html,body { width:100%; height:100%; overflow:hidden; }
body { background:var(--jade); font-family:"PingFang SC","Microsoft YaHei",sans-serif; }
.entrance { position:relative; width:100%; height:100vh; height:100dvh; overflow:hidden; background-position:center center; background-size:cover; background-repeat:no-repeat; isolation:isolate; }
.entrance-shade { position:absolute; inset:0; z-index:0; pointer-events:none; background:linear-gradient(180deg,rgba(6,18,15,.04) 0%,rgba(6,18,15,.06) 46%,rgba(6,18,15,.48) 100%); }
.start-review { position:fixed; z-index:2; left:50%; bottom:clamp(84px,15vh,150px); transform:translateX(-50%); display:flex; align-items:center; justify-content:center; width:clamp(210px,20vw,280px); height:60px; color:#f8f2e7; text-decoration:none; border:1px solid rgba(234,217,179,.78); background:linear-gradient(135deg,rgba(13,49,42,.94),rgba(8,35,30,.97)); box-shadow:0 16px 44px rgba(3,16,13,.36),inset 0 0 0 1px rgba(255,255,255,.06); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); letter-spacing:.28em; text-indent:.28em; font:600 17px "Noto Serif SC","STSong","SimSun",serif; transition:transform .24s ease,box-shadow .24s ease,background .24s ease; }
.start-review::before { content:""; position:absolute; inset:5px; border:1px solid rgba(199,170,114,.25); pointer-events:none; }
.start-review::after { content:""; position:absolute; top:50%; right:20px; width:24px; height:1px; background:linear-gradient(90deg,transparent,var(--gold-light)); transform:translateY(-50%); opacity:.72; transition:width .24s ease; }
.start-review span::before { content:""; position:absolute; top:50%; left:20px; width:24px; height:1px; background:linear-gradient(90deg,var(--gold-light),transparent); transform:translateY(-50%); opacity:.72; transition:width .24s ease; }
.start-review:hover { color:#fffaf1; transform:translateX(-50%) translateY(-3px); background:linear-gradient(135deg,rgba(20,67,57,.97),rgba(10,42,36,.98)); box-shadow:0 22px 54px rgba(3,16,13,.44),0 0 0 1px rgba(199,170,114,.2); }
.start-review:hover::after,.start-review:hover span::before { width:32px; }
.start-review:active { transform:translateX(-50%) translateY(0); }
.start-review:focus-visible { outline:2px solid var(--gold-light); outline-offset:5px; }
@media (max-width:600px) {
  .entrance { background-position:center center; }
  .entrance-shade { background:linear-gradient(180deg,rgba(5,17,14,.02),rgba(5,17,14,.12) 52%,rgba(5,17,14,.58) 100%); }
  .start-review { bottom:calc(11vh + env(safe-area-inset-bottom)); width:min(68vw,260px); height:58px; font-size:16px; }
}
@media (prefers-reduced-motion:reduce) { .start-review,.start-review::after,.start-review span::before { transition:none; } }