/* ================= 🌟 基础与排版 ================= */
.pp-wrapper { padding: 32px 0; }
.pp-header { text-align: center; margin-bottom: 32px; }
.pp-title { font-size: 1.8rem; font-weight: 800; color: var(--text-main); margin-bottom: 12px; transition: color 0.2s; }
.pp-subtitle { color: var(--text-muted); max-width: 800px; margin: 0 auto; line-height: 1.6; }

/* ================= 🌟 网格布局 ================= */
.pp-workspace { display: grid; grid-template-columns: 440px 1fr; gap: 24px; align-items: stretch; }
.pp-col-left { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.pp-col-right { display: flex; flex-direction: column; gap: 24px; height: 100%; min-height: 0; min-width: 0; }
@media(max-width: 900px) { .pp-workspace { grid-template-columns: 1fr; } }

/* ================= 🌟 卡片风格 ================= */
.pp-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 20px; padding: 28px; box-shadow: 0 4px 16px rgba(0,0,0,0.03); display: flex; flex-direction: column; box-sizing: border-box; height: 100%; }
.pp-panel-title { font-weight: 700; color: var(--text-main); font-size: 1.1rem; border-bottom: 1px solid var(--border-color); padding-bottom: 16px; margin-bottom: 24px; display: flex; justify-content: space-between; align-items: center; }

/* ================= 🌟 表单组件 ================= */
.pp-form-group { margin-bottom: 20px; }
.pp-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pp-label { display: block; font-size: 0.9rem; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; }

.pp-select { 
    width: 100%; box-sizing: border-box; padding: 12px 14px; 
    border: 2px solid var(--border-color); border-radius: 10px; 
    background: var(--bg-body); color: var(--text-main); 
    font-size: 0.95rem; font-weight: 600; transition: 0.2s; outline: none; cursor: pointer;
}
.pp-select:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1); }

/* 快捷标签 */
.pp-chips-container { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.pp-chip { 
    background: var(--bg-body); border: 1px solid var(--border-color); 
    border-radius: 20px; padding: 6px 14px; font-size: 0.85rem; font-weight: 600; 
    color: var(--text-main); cursor: pointer; transition: 0.2s; 
}
.pp-chip:hover { border-color: var(--primary-color); color: var(--primary-color); transform: translateY(-1px); }

/* ================= 🌟 结果与动态画布面板 ================= */
.pp-result-box { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; padding: 20px; }

/* 拟物化纸张预览 */
.pp-paper-preview { 
    background: #ffffff; border: 1px solid #dcdde1; 
    box-shadow: 0 10px 20px rgba(0,0,0,0.05), 0 2px 5px rgba(0,0,0,0.02); 
    display: flex; align-items: center; justify-content: center; 
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); 
    margin-bottom: 32px; position: relative; max-width: 220px; max-height: 280px;
}
/* 通过内部容器撑开比例 */
.pp-preview-inner { width: 100%; height: 100%; position: relative; }

.pp-preview-w { position: absolute; bottom: -24px; left: 0; right: 0; text-align: center; font-size: 0.85rem; color: var(--text-muted); font-family: monospace; font-weight: bold; }
.pp-preview-h { position: absolute; right: -50px; top: 0; bottom: 0; display: flex; align-items: center; font-size: 0.85rem; color: var(--text-muted); font-family: monospace; font-weight: bold; writing-mode: vertical-rl; transform: rotate(180deg); }

.pp-res-info { text-align: center; width: 100%; background: rgba(var(--primary-rgb), 0.05); border-radius: 16px; padding: 24px; border: 1px dashed rgba(var(--primary-rgb), 0.2); }
.pp-res-label { font-size: 0.85rem; font-weight: 700; color: var(--text-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; }
.pp-res-main { font-size: clamp(2rem, 3.5vw, 2.5rem); font-weight: 800; color: var(--primary-color); font-family: monospace; word-break: break-all; line-height: 1.2; }
.pp-res-sub { font-size: 1rem; color: var(--text-main); font-weight: 600; font-family: monospace; }

.pp-btn-copy { padding: 8px 16px; background: transparent; border: 1px solid var(--primary-color); border-radius: 20px; font-weight: 600; color: var(--primary-color); cursor: pointer; transition: 0.2s; font-size: 0.85rem; }
.pp-btn-copy:hover { background: var(--primary-color); color: #fff; }

/* ================= 🌟 SEO 文章与表格 ================= */
.pp-seo-box { margin-top: 32px; background: var(--bg-surface); padding: 32px; border-radius: 20px; border: 1px solid var(--border-color); box-sizing: border-box; width: 100%; }
.pp-seo-box h2 { font-size: 1.25rem; margin-bottom: 16px; color: var(--text-main); margin-top: 24px; }
.pp-seo-box h2:first-child { margin-top: 0; }
.pp-seo-box p { color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }

.pp-table-wrapper { overflow-x: auto; margin-top: 16px; }
.pp-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 0.95rem; }
.pp-table th, .pp-table td { padding: 12px 16px; border-bottom: 1px solid var(--border-color); }
.pp-table th { background: var(--bg-body); color: var(--text-main); font-weight: 700; }
.pp-table td { color: var(--text-muted); font-family: monospace; }