* {
    transition: all 0.25s ease;
    -webkit-transition: all 0.25s ease;
    -moz-transition: all 0.25s ease;
    -o-transition: all 0.25s ease;
    -ms-transition: all 0.25s ease;
    padding: 0;
    margin: 0;
}

html, body { width: 100%; }

body {
    background: #16a085;
    font-family: "Helvetica Neue", Helvetica, Microsoft Yahei, Hiragino Sans GB, WenQuanYi Micro Hei, sans-serif;
    -webkit-font-smoothing: antialiased;
    padding-top: 20px;
}

a { text-decoration: none; }
a:hover, a:focus { text-shadow: 0 1px 1px #555; }

#particles {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    height: auto;
    width: auto;
    z-index: -1;
}

.web-title {
    color: #fff;
    margin: 25px 0 30px 0;
}
.web-title small { color: #e7e7e7; }
.web-title h1 { font-size: 28px; }
.web-title p { font-size: 14px; color: #e7e7e7; margin-top: 5px; }

.main-footer, .main-footer a { color: #fff; }
.main-footer .row a { padding-left: 10px; }
.main-footer .row { margin-bottom: 50px; }
.copyright { margin-bottom: 10px; }

@media (min-width: 770px) { .navbar-brand { display: none; } }
@media (max-width: 770px) {
    .web-title { display: none; }
    .nav-main { padding: 0; }
}

.panel { margin-top: 20px; }
.panel-heading { font-weight: 700; font-size: 16px; }
#textInput {
    width: 100%;
    min-height: 300px;
    padding: 15px;
    font-size: 16px;
    line-height: 1.6;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: vertical;
    font-family: inherit;
    box-sizing: border-box;
}
#textInput:focus {
    border-color: #16a085;
    outline: none;
    box-shadow: 0 0 8px rgba(22, 160, 133, 0.3);
}
.stat-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 14px 8px;
    text-align: center;
    border: 1px solid #e9ecef;
    height: 100%;
}
.stat-card .stat-number {
    font-size: 26px;
    font-weight: 700;
    color: #16a085;
    display: block;
    line-height: 1.2;
}
.stat-card .stat-label {
    font-size: 12px;
    color: #6c757d;
    margin-top: 3px;
    display: block;
}
.stat-card.highlight {
    background: linear-gradient(135deg, #16a085, #1abc9c);
    border-color: #16a085;
}
.stat-card.highlight .stat-number { color: #fff; }
.stat-card.highlight .stat-label { color: rgba(255,255,255,0.85); }
.toolbar {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin: 10px 0 10px;
}
.toolbar .btn {
    font-size: 12px;
    padding: 4px 10px;
}
.info-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}
.info-item {
    font-size: 13px;
    color: #555;
    background: #f8f9fa;
    padding: 4px 10px;
    border-radius: 4px;
}
.info-item strong { color: #333; }

.mb-10 { margin-bottom: 10px; }
.mt-10 { margin-top: 10px; }
.freq-table { width: 100%; }
.freq-table td { padding: 4px 8px; font-size: 14px; }
.freq-table .char-col { color: #16a085; font-weight: 700; font-size: 18px; min-width: 30px; }
.freq-table .bar-col { width: 60%; }
.freq-table .bar-bg { background: #e9ecef; height: 20px; border-radius: 10px; overflow: hidden; }
.freq-table .bar-fill { height: 100%; background: linear-gradient(90deg, #16a085, #1abc9c); border-radius: 10px; transition: width 0.3s; }
.freq-table .num-col { color: #6c757d; font-size: 12px; min-width: 50px; text-align: right; }
.goal-progress { height: 24px; margin-top: 5px; }
.goal-progress .progress-bar { background: linear-gradient(90deg, #16a085, #1abc9c); line-height: 24px; font-size: 12px; }
.read-time { font-size: 20px; font-weight: 700; color: #16a085; display: inline; }
.goal-input { width: 100px; display: inline-block; height: 30px; font-size: 13px; padding: 2px 8px; }
.process-tools { border-top: 1px dashed #eee; padding-top: 10px; margin-top: 10px; }
.process-tools .btn-sm { font-size: 12px; padding: 3px 8px; margin-bottom: 4px; }
.desc-section h3 { font-size: 18px; color: #16a085; margin: 20px 0 10px; border-left: 4px solid #16a085; padding-left: 12px; }
.desc-section h4 { font-size: 15px; color: #333; margin: 12px 0 6px; }
.desc-section p, .desc-section li { font-size: 14px; line-height: 1.8; color: #555; }
.desc-section ul { padding-left: 20px; }
.desc-section li { margin-bottom: 4px; }
.desc-section blockquote { border-left: 3px solid #16a085; padding: 8px 15px; margin: 10px 0; background: #f8f9fa; font-size: 14px; color: #555; }