:root { color-scheme: dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: #e7f4ff; background: #06111d; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: radial-gradient(circle at 80% 0%, #153958 0, #071525 42%, #040b14 100%); }
.shell { display: grid; grid-template-columns: minmax(0, 680px); gap: 22px; width: min(680px, calc(100% - 32px)); min-height: 100vh; margin: auto; align-content: center; }
.card { border: 1px solid #1d4660; border-radius: 14px; background: linear-gradient(145deg, #0c2539ee, #081522ee); box-shadow: 0 18px 70px #0007; }
.login-card { padding: 30px; }
.eyebrow { color: #43d9ff; font-size: 12px; letter-spacing: 3px; }
h1 { margin: 10px 0 8px; font-size: 31px; }
h2 { margin: 0 0 20px; font-size: 20px; }
.intro { margin: 0 0 5px; color: #91b0c3; line-height: 1.7; }
.lan-note { margin: 0 0 20px; color: #57e69e; line-height: 1.7; }
.warning { margin-bottom: 20px; padding: 12px 14px; border: 1px solid #695533; border-radius: 8px; color: #ffd98a; background: #3c2c1233; line-height: 1.6; }
label { display: block; margin-bottom: 8px; color: #cce8f7; font-weight: 600; }
textarea { display: block; width: 100%; resize: vertical; padding: 12px; border: 1px solid #2a5871; border-radius: 8px; outline: none; color: #e7f4ff; background: #061522; font: 13px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; }
textarea:focus { border-color: #42d8ff; box-shadow: 0 0 0 3px #42d8ff22; }
.actions { display: flex; gap: 10px; margin-top: 14px; }
button { padding: 10px 16px; border: 0; border-radius: 7px; color: #061525; background: #42d8ff; font: 600 14px inherit; cursor: pointer; }
button:hover { background: #8eeaff; } button:disabled { cursor: wait; opacity: .6; } button.secondary { color: #b8d1df; background: #17364d; }
.status { min-height: 22px; margin: 16px 0 18px; color: #8daabd; } .status[data-tone="ok"] { color: #57e69e; } .status[data-tone="error"] { color: #ffad9e; }
details { color: #89a7b9; line-height: 1.7; } summary { color: #bfe0ef; cursor: pointer; } ol { padding-left: 22px; } code { color: #57d9f5; }
.roadmap-card { padding: 26px; align-self: start; }
.roadmap-item { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; margin: 18px 0; color: #718fa1; }
.roadmap-item > span { display: grid; width: 25px; height: 25px; place-items: center; border: 1px solid #376077; border-radius: 50%; color: #8eafc0; font-size: 12px; }
.roadmap-item.done { color: #d8edf8; } .roadmap-item.done > span { border-color: #45dca1; color: #57e69e; }
.roadmap-item b, .roadmap-item small { display: block; } .roadmap-item small { margin-top: 3px; color: #7291a3; line-height: 1.5; }
@media (max-width: 800px) { .shell { grid-template-columns: 1fr; padding: 30px 0; align-content: start; } .login-card { padding: 22px; } h1 { font-size: 25px; } }