/* ==========================================================================
   AI写作系统 - 图标库
   引入本地 Font Awesome 6 Free
   ========================================================================== */

@import url('all.min.css');

/* Font Awesome 基础类 */
.fa, .fas, .far, .fab {
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    line-height: 1;
    text-rendering: auto;
}

.fas { font-family: "Font Awesome 6 Free"; font-weight: 900; }
.far { font-family: "Font Awesome 6 Free"; font-weight: 400; }
.fab { font-family: "Font Awesome 6 Brands"; font-weight: 400; }

/* 图标尺寸 */
.fa-xs { font-size: 0.75em; }
.fa-sm { font-size: 0.875em; }
.fa-lg { font-size: 1.25em; }
.fa-xl { font-size: 1.5em; }
.fa-2x { font-size: 2em; }
.fa-3x { font-size: 3em; }
.fa-4x { font-size: 4em; }
.fa-5x { font-size: 5em; }

/* 按钮内图标对齐 */
.btn .fa, .toolbar-btn .fa, .message-action-btn .fa,
.send-btn .fa, .icon-btn .fa {
    margin-right: 0;
}

/* 圆形图标按钮 */
.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    color: var(--text-color-2);
    box-shadow:
        4px 4px 8px var(--shadow-dark),
        -4px -4px 8px var(--shadow-light);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 14px;
}
.icon-circle:hover { color: var(--accent); transform: scale(1.05); }
.icon-circle:active {
    box-shadow:
        inset 3px 3px 6px var(--shadow-dark),
        inset -3px -3px 6px var(--shadow-light);
    transform: scale(0.96);
}
.icon-circle.active { color: var(--accent); }

/* 大型展示图标 */
.feature-icon {
    width: 72px;
    height: 72px;
    border-radius: 22px;
    background: var(--bg-color);
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow:
        8px 8px 16px var(--shadow-dark),
        -8px -8px 16px var(--shadow-light);
    margin-bottom: 16px;
}
.feature-icon.gradient {
    background: var(--primary-gradient);
    color: #fff;
}
.feature-icon.accent { color: var(--accent); }
.feature-icon.success { color: var(--success); }
.feature-icon.warning { color: var(--warning); }
.feature-icon.danger { color: var(--danger); }
.feature-icon.info { color: var(--info); }