/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 175%;
    background: #f0f0f0;
    color: #333;
}

a { color: #003366; text-decoration: none; }
a:hover { color: #0056B3; text-decoration: underline; }

/* ===== Header ===== */
#header {
    border-bottom: 1px solid #A5A5A5;
    background: linear-gradient(to bottom, #fafafa, #e8e8e8);
}
.hskin {
    max-width: 1200px;
    margin: 0 auto;
    height: 60px;
    display: flex;
    align-items: center;
    padding: 0 20px;
}
#logo {
    font-size: 22px;
    font-weight: bold;
    color: #333;
}
.ver-tag {
    display: inline-block;
    font-size: 12px;
    color: #630;
    background: #FFE793;
    padding: 2px 8px;
    border-radius: 3px;
    margin-left: 6px;
    font-weight: normal;
}
#nav {
    margin-left: auto;
}
#nav a {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 3px;
}
#nav a.st {
    color: #fff;
    background: #4E6EF2;
}

/* ===== Content ===== */
#content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 0 20px 0;
}

/* ===== Toolbar ===== */
#sfbar {
    padding: 10px 16px;
    line-height: 36px;
    border-top: 1px solid #E5E5E5;
    border-bottom: 1px solid #E5E5E5;
    background: linear-gradient(to top, #F9F9F9, #EEEEEE);
}
#frm {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2px 4px;
}
#frm input[type="text"],
#frm select {
    font-size: 14px;
    padding: 2px 6px;
    border: 1px solid #ccc;
    border-radius: 3px;
    background: #fff;
    height: 28px;
}
#frm input[type="text"]:focus,
#frm select:focus {
    border-color: #4E6EF2;
    outline: none;
    box-shadow: 0 0 3px rgba(78, 110, 242, 0.3);
}

.trans-btn {
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    background: #4E6EF2;
    color: #fff;
    border-radius: 3px;
    font-size: 12px;
    margin: 0 1px;
    cursor: pointer;
}
.trans-btn:hover { background: #3a5bd9; text-decoration: none; }

.color-input {
    width: 36px;
    height: 28px;
    padding: 2px;
    border: 1px solid #ccc;
    border-radius: 3px;
    cursor: pointer;
    background: #fff;
}

/* Label color tags */
.c1 { padding: 2px 6px; border-radius: 3px 0 0 3px; box-shadow: 1px 1px 1px rgba(0,0,0,.1); color: #300; background: #fdd; }
.c2 { padding: 2px 6px; border-radius: 3px 0 0 3px; box-shadow: 1px 1px 1px rgba(0,0,0,.1); color: #003; background: #ddf; }
.c3 { padding: 2px 6px; border-radius: 3px 0 0 3px; box-shadow: 1px 1px 1px rgba(0,0,0,.1); color: #033; background: #dff; }
.c4 { padding: 2px 6px; border-radius: 3px 0 0 3px; box-shadow: 1px 1px 1px rgba(0,0,0,.1); color: #300; background: #FFF9DD; }
.c5 { padding: 2px 6px; border-radius: 3px 0 0 3px; box-shadow: 1px 1px 1px rgba(0,0,0,.1); color: #030; background: #dfd; }

#frm input[type="checkbox"] {
    margin: 0 2px 0 4px;
    vertical-align: middle;
}
#frm label {
    vertical-align: middle;
    cursor: pointer;
    margin-right: 2px;
}

/* Buttons */
.btn-pri {
    color: #fff;
    background: #A259FF;
    border: none;
    padding: 6px 18px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    margin-left: 8px;
    transition: background .2s;
}
.btn-pri:hover { background: #8b3fee; }

.btn-sec {
    color: #fff;
    background: #036;
    border: none;
    padding: 6px 18px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    margin-left: 4px;
    transition: background .2s;
}
.btn-sec:hover { background: #024070; }

/* ===== Preview Area ===== */
#sfcon5 { border: 1px solid #fff; border-width: 1px 0; overflow: hidden; }
#sfcon4 { border: 1px solid #808080; border-width: 1px 0; background: linear-gradient(to bottom, #e8e8e8, #d8d8d8); }
#sfcon3 {
    border: 1px solid #C0C0C0;
    border-width: 1px 0;
    padding: 30px 16px;
    background-color: #EAEAEA;
    background-image: linear-gradient(90deg, #EAEAEA 0%, #F5F5F5 40%, #F5F5F5 60%, #EAEAEA 100%);
    text-align: center;
}
#sfcon2 { display: inline-block; }
#sfcon1 { padding: 15px; }
#sfcon {
    padding: 0;
    display: inline-block;
    line-height: 0;
}
#sealCanvas {
    display: block;
    image-rendering: -webkit-optimize-contrast;
}

/* ===== Export Area ===== */
#sfexp {
    padding: 16px;
    text-align: center;
}
.export-area {
    display: inline-block;
    padding: 16px 24px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.btn-exp {
    color: #fff;
    background: #4E6EF2;
    border: none;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    margin: 0 4px;
    transition: background .2s;
}
.btn-exp:hover { background: #3a5bd9; }
.export-tip {
    margin-top: 10px;
    font-size: 12px;
    color: #888;
}

/* ===== Help ===== */
.help-box {
    text-align: center;
    padding: 12px;
    color: #567;
    font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    #sfbar { padding: 8px; line-height: 32px; }
    #frm input[type="text"],
    #frm select { font-size: 13px; }
    .btn-pri, .btn-sec { padding: 6px 12px; }
    #sfcon3 { padding: 16px 8px; }
    #sfcon1 { padding: 8px; }
}