* { box-sizing: border-box; }
body {
    font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    margin: 0;
    background: #0f1419;
    color: #d8dee9;
    line-height: 1.5;
}
header {
    background: #1c2128;
    padding: 14px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #2d333b;
    position: sticky; top: 0; z-index: 10;
}
header h1 { margin: 0; font-size: 20px; color: #58a6ff; }
header h1 small { color: #6e7681; font-size: 13px; margin-left: 8px; }
header nav a {
    color: #adbac7;
    margin-left: 20px;
    text-decoration: none;
    font-size: 14px;
}
header nav a:hover { color: #58a6ff; }
main { max-width: 1200px; margin: 0 auto; padding: 24px; }
section {
    background: #1c2128;
    border: 1px solid #2d333b;
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 20px;
}
h2 { margin-top: 0; color: #adbac7; font-size: 17px; border-bottom: 1px solid #2d333b; padding-bottom: 10px; }
h3 { color: #768390; font-size: 15px; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid #2d333b; font-size: 14px; }
th { color: #768390; font-weight: 600; }
code { background: #2d333b; padding: 2px 6px; border-radius: 4px; color: #f0883e; font-size: 12px; }

.btn {
    display: inline-block;
    background: #21262d;
    color: #c9d1d9;
    border: 1px solid #444c56;
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    text-decoration: none;
    transition: all .15s;
}
.btn:hover { background: #30363d; }
.btn.primary { background: #2188ff; border-color: #2188ff; color: #fff; }
.btn.primary:hover { background: #1f6feb; }
.btn.danger { background: #da3633; border-color: #da3633; color: #fff; }
.btn.danger:hover { background: #b62324; }

input, select {
    background: #0d1117;
    color: #c9d1d9;
    border: 1px solid #444c56;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
}
input:focus, select:focus { outline: none; border-color: #58a6ff; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.hint { color: #6e7681; font-size: 12px; }
.empty { color: #6e7681; font-style: italic; }
.err { color: #ff7b72; }

.status { padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.status.on  { background: rgba(46,160,67,.2);  color: #56d364; }
.status.idle{ background: rgba(187,128,9,.2);   color: #d29922; }
.status.off { background: rgba(248,81,73,.2);   color: #ff7b72; }

.shot-modes {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.shot-mode {
    background: #0d1117;
    border: 1px solid #2d333b;
    border-radius: 8px;
    padding: 14px 18px;
    flex: 1 1 280px;
    min-width: 260px;
}
.shot-mode h3 {
    margin: 0 0 6px 0;
    color: #c9d1d9;
    font-size: 14px;
    border: none;
    padding: 0;
}
.shot-wrap img {
    max-width: 100%;
    border: 1px solid #2d333b;
    border-radius: 6px;
    background: #000;
    margin-top: 12px;
}
.output {
    background: #0d1117;
    border: 1px solid #2d333b;
    border-radius: 6px;
    padding: 14px;
    margin-top: 12px;
    max-height: 400px;
    overflow: auto;
}
.output pre { margin: 0; color: #c9d1d9; font-family: "Cascadia Code", Consolas, monospace; font-size: 13px; white-space: pre-wrap; word-break: break-all; }
.err-stderr { color: #ff7b72; display: block; margin-top: 6px; }

.mini-out, .mini-err {
    margin: 4px 0;
    padding: 6px 8px;
    background: #0d1117;
    border-radius: 4px;
    font-size: 12px;
    max-width: 380px;
    max-height: 80px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
}
.mini-err { color: #ff7b72; border: 1px solid #5a1d1a; }

.upload { background: #0d1117; padding: 12px; border-radius: 6px; margin-bottom: 12px; }
.login { max-width: 360px; margin: 100px auto; background: #1c2128; border: 1px solid #2d333b; padding: 32px; border-radius: 10px; text-align: center; }
.login h2 { border: none; }
.login form { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.login input { padding: 10px 14px; }
.login button { background: #2188ff; color: #fff; border: none; padding: 10px; border-radius: 6px; cursor: pointer; font-size: 14px; }

/* ============== 移动端适配 ============== */
@media (max-width: 768px) {
    body { font-size: 14px; }
    header { padding: 8px 12px; flex-wrap: wrap; }
    header h1 { font-size: 16px; }
    header .user { font-size: 12px; }
    main { padding: 10px 12px; }
    section { padding: 10px 12px; }
    section h2 { font-size: 16px; }
    .shot-modes { flex-direction: column; }
    .shot-mode { min-width: 0; padding: 10px 12px; }
    .shot-wrap img { max-width: 100%; height: auto; }
    .login { margin: 30px 16px; padding: 20px; }
    .login h2 { font-size: 20px; }
    pre, code { font-size: 12px; }
    table { font-size: 12px; }
    th, td { padding: 6px 4px; }
    .mini-out, .mini-err { max-width: 200px; max-height: 60px; font-size: 11px; }
    .row { flex-wrap: wrap; gap: 6px; }
    .row input, .row select, .row button { font-size: 14px; }
    input, select, button { min-height: 36px; }
    .device-card { padding: 12px; }
}

/* 表格在窄屏上水平滚动 */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }

/* 触屏: 防止双击缩放 */
button, label { touch-action: manipulation; }