:root { color-scheme: dark; font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: #07151d; color: #f4f7f8; }
button, input { font: inherit; }
.page-shell { position: relative; display: grid; min-height: 100svh; place-items: center; overflow: hidden; padding: 24px; background: radial-gradient(ellipse at 50% 42%, #14323e 0%, #091b25 45%, #06131c 100%); }
.ambient { position: absolute; border-radius: 50%; pointer-events: none; }
.ambient-one { width: min(66vw, 760px); aspect-ratio: 1; border: 1px solid rgba(149,205,212,.08); box-shadow: 0 0 0 65px rgba(128,183,194,.025), 0 0 0 165px rgba(128,183,194,.018); transform: translate(39vw,-24vh); }
.ambient-two { width: 270px; height: 270px; background: rgba(248,198,104,.035); transform: translate(-45vw,40vh); filter: blur(65px); }
.center-stack { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 68px; }
.button-halo { position: absolute; top: -20px; width: 224px; height: 224px; border: 1px solid rgba(248,198,104,.17); border-radius: 50%; box-shadow: 0 0 0 20px rgba(248,198,104,.035), 0 0 0 44px rgba(248,198,104,.018); pointer-events: none; }
.call-button { position: relative; display: flex; width: 184px; height: 184px; flex-direction: column; align-items: center; justify-content: center; gap: 13px; border: 0; border-radius: 50%; background: linear-gradient(150deg,#ffe09b,#f3b950); color: #172936; box-shadow: 0 18px 35px rgba(2,9,12,.32), inset 0 2px rgba(255,255,255,.55); font-size: 20px; font-weight: 800; letter-spacing: .03em; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.call-button:hover { transform: translateY(-4px) scale(1.025); box-shadow: 0 24px 48px rgba(2,9,12,.42), 0 0 30px rgba(248,198,104,.18); }
.call-button:active { transform: scale(.97); }
.call-button svg { width: 32px; height: 32px; }
.email-card { position: relative; display: flex; width: min(92vw, 410px); align-items: center; gap: 15px; padding: 17px 19px; border: 1px solid rgba(162,205,213,.2); border-radius: 18px; background: linear-gradient(135deg,rgba(26,57,68,.72),rgba(12,34,45,.76)); box-shadow: 0 16px 40px rgba(1,8,12,.2), inset 0 1px rgba(255,255,255,.055); transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.email-card:hover { transform: translateY(-2px); border-color: rgba(248,198,104,.48); box-shadow: 0 20px 44px rgba(1,8,12,.3); }
.email-card-icon { display: grid; width: 43px; height: 43px; flex: 0 0 43px; place-items: center; border: 1px solid rgba(248,198,104,.28); border-radius: 12px; background: rgba(248,198,104,.085); color: #f8c668; }
.email-card-icon svg { width: 23px; height: 23px; }
.email-card-copy { display: flex; min-width: 0; flex-direction: column; gap: 4px; }
.email-label { color: #eac884; font-size: 13px; font-weight: 700; letter-spacing: .1em; }
.email { color: #e3eef0; font-size: clamp(12px,3.25vw,15px); text-decoration: none; overflow-wrap: anywhere; }
.email:hover { color: #ffe09b; text-decoration: underline; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid #f8c668; outline-offset: 5px; }
dialog { width: min(94vw, 460px); padding: 61px 30px 29px; border: 1px solid #31515c; border-radius: 24px; background: #102934; color: #f4f7f8; box-shadow: 0 35px 90px rgba(0,0,0,.5); }
dialog::backdrop { background: rgba(2,10,15,.72); backdrop-filter: blur(6px); }
dialog form { display: flex; flex-direction: column; }
.close-button { position: absolute; top: 12px; right: 18px; border: 0; background: none; color: #b5c7cd; font-size: 29px; line-height: 1; cursor: pointer; }
input { width: 100%; height: 52px; padding: 0 15px; border: 1px solid #4b6570; border-radius: 12px; background: #0a1d26; color: #fff; font-size: 16px; }
input::placeholder { color: #9db1b8; font-size: 14px; }
.form-status { min-height: 24px; margin: 17px 0 10px; color: #ffcfbd; font-size: 14px; line-height: 1.5; }
.form-status.success { color: #a9e6cb; }
.send-button { min-height: 52px; border: 0; border-radius: 12px; background: #f8c668; color: #172936; font-size: 16px; font-weight: 800; cursor: pointer; }
.send-button:hover:not(:disabled) { background: #ffe09b; }
.send-button:disabled { opacity: .7; cursor: wait; }
@media (max-width: 500px) { .center-stack { gap: 62px; } dialog { padding: 60px 19px 24px; } .email-card { gap: 11px; padding: 15px 14px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; } }