/* 六站统一首屏契约 · 2026-11-01 b */
.fs{margin:18px 0 8px}
.fs-card{background:#fffdf7;border:1px solid #d3c3a3;border-radius:12px;padding:16px 18px;box-shadow:0 1px 0 rgba(0,0,0,.04)}
.fs-title{font-size:15px;font-weight:600;margin:0 0 10px;color:#231f18}
.fs-drop{border:1.5px dashed #b9a780;border-radius:10px;padding:12px;display:flex;gap:10px;flex-wrap:wrap;align-items:center;background:#f7f1e3}
.fs-drop input,.fs-drop select,textarea{font:13px inherit;color:#231f18;background:#fffdf7;border:1px solid #b9a780;border-radius:8px;padding:8px 10px}
.fs-card textarea{width:100%;margin-top:10px;border:1px solid #b9a780;border-radius:8px;background:#fffdf7;font:13px inherit;padding:8px 10px}
.fs-btn{background:#231f18;color:#fff;border:0;padding:9px 14px;border-radius:8px;cursor:pointer;font:13px inherit}
.fs-btn.ghost{background:#fffdf7;color:#231f18;border:1px solid #b9a780}
.fs-btn[disabled]{opacity:.55;cursor:not-allowed}
.fs-status{font-size:12.5px;color:#5f5546;margin-top:8px;line-height:1.5}
.fs-warn{color:#a8402f;font-size:12.5px;margin-top:6px}
.fs-cols{width:100%;border-collapse:collapse;margin-top:10px;font-size:12.5px;background:#fffdf7}
.fs-cols th,.fs-cols td{border:1px solid #d3c3a3;padding:7px 9px;text-align:left}
.fs-cols th{background:#efe6d3}
.fs-cols select{font:12.5px inherit;padding:5px 7px;border:1px solid #b9a780;border-radius:6px;background:#fffdf7}
.fs-stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.fs-stat{border:1px solid #d3c3a3;border-radius:10px;padding:10px 12px;background:#fffdf7;min-width:120px}
.fs-stat b{display:block;font-size:18px}
.fs-stat span{font-size:11.5px;color:#8d8271}
.fs-out{margin-top:12px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.fs-link{color:#8a5a1f;font-weight:600;text-decoration:underline}
.fs-cost{font-size:12px;color:#8d8271;margin-top:10px;line-height:1.5}
.fs-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.fs-step{border:1px solid #d3c3a3;border-radius:10px;padding:10px 12px;background:#fffdf7}
.fs-step b{display:block;font-size:13px;margin-bottom:4px}
.fs-step p{margin:0;font-size:12px;color:#5f5546;line-height:1.45}
.fs-list{display:grid;gap:10px;margin-top:12px}
@media(max-width:720px){.fs-steps{grid-template-columns:1fr 1fr}.fs-drop{flex-direction:column;align-items:stretch}}
@media(max-width:420px){.fs-steps{grid-template-columns:1fr}}

/* 首屏收缩：让模块在 1280 与 420 视口内可见 */
.hero{padding:22px 0 14px}
.hero-zone{padding-top:36px}
.hero-zone h1{margin-bottom:14px}
.hero-sub,.hero-note{margin-top:6px}
section.hero .sub{max-height:4.2em;overflow:hidden}
.hero .links,.hero .trust{display:none}
.fs{margin:12px 0 6px}
.fs-card{padding:10px 12px}
.fs-steps{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.fs-step{border:1px solid #d3c3a3;border-radius:8px;padding:6px 9px;background:#fffdf7}
.fs-step b{font-size:12px;margin:0}
.fs-step p{display:inline;font-size:11.5px;color:#5f5546;margin-left:6px}
@media(max-width:900px){.fs-steps{grid-template-columns:1fr 1fr}}
@media(max-width:420px){.fs-steps{display:none}.hero-zone{padding-top:20px}.fs-card{padding:10px 12px}}

/* DT2-02 自然语言优先首屏 */
.fs-ask textarea{width:100%;min-height:74px;border:1px solid #c9b791;border-radius:10px;padding:10px 12px;font:inherit;background:#fffdf7;color:#3a3226}
.fs-ask textarea:focus{outline:2px solid #A66A2E;outline-offset:1px}
.fs-askrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;align-items:center}
.fs-askrow input{flex:1;min-width:180px;border:1px solid #c9b791;border-radius:8px;padding:8px 10px;font:inherit;background:#fffdf7}
.fs-stages{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0 4px}
.fs-stage{border:1px solid #d3c3a3;border-radius:999px;padding:5px 10px;font-size:11.5px;color:#7b6c53;background:#fffdf7}
.fs-stage.on{background:#A66A2E;color:#fff;border-color:#A66A2E}
.fs-opt{margin-top:8px}
.fs-opt summary{font-size:12px;color:#6d604a}
@media(max-width:420px){.fs-ask textarea{min-height:60px}}

.fs-variants{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.fs-patchrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;align-items:center}
.fs-patchrow input{flex:1;min-width:200px;border:1px solid #c9b791;border-radius:8px;padding:8px 10px;font:inherit;background:#fffdf7}
.fs-diff{margin-top:8px;font-size:12px;color:#4a3f2e;background:#fff6ea;border:1px solid #e3cdae;border-radius:8px;padding:8px 10px}

.fs-variant.is-active{background:#A66A2E;color:#fff;border-color:#A66A2E}

.fs-code{margin-top:8px}
.fs-code textarea{width:100%;min-height:160px;border:1px solid #c9b791;border-radius:8px;background:#fffdf7;font-family:ui-monospace,monospace;font-size:12px;padding:8px}
.fs-codebar{display:flex;gap:8px;align-items:center;margin-top:6px}
.fs-codetop{font-size:12px;color:#4a3f2e;margin:0 0 6px}

.fs-tree{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.fs-file{background:#fffdf7;border:1px solid #c9b791;border-radius:6px;padding:6px 10px;font-size:12px;cursor:pointer}
.fs-file em{color:#6b5c46;font-style:normal;font-size:11px}
.fs-file.is-on{background:#A66A2E;color:#fff;border-color:#A66A2E}