/* ===== 面板页样式（融合视图 / 内容库 / 关联图 共用） =====
   来源：可视化面板 style.css v0.3，迁入 3d-print-course 站点时：
   - 移除技能树、系统架构、视图切换相关样式
   - 顶栏换成与主站一致的站点导航（紫灰画册色系） */
:root {
  --brand: #9433EB; --brand-deep: #7B22CC; --brand-ink: #5E1A9E;
  --bg: #F8F6FA; --surface: #FFFFFF; --panel: #FFFFFF; --panel2: #F6F2FA;
  --tint: #F2E7FC; --line: #E5DDEC;
  --text: #27232D; --dim: #706878; --warm: #FFD45A; --warm-ink: #6B5500;
  --accent: #9433EB; --c-modeling: #E0A93C;
  --c-painting: #2FB8AC; --c-painting-deep: #1E8A80; --c-painting-bg: #E6F7F5;
  --c-model: #F0A63C; --c-slot: #9A6BE0; --c-skill: #4A90E2; --c-knowledge: #3CB88A;
  --c-primary-edge: #E8603C; --c-review-edge: #98A2B8;
  --ok-bg: #DDF3E4; --ok-ink: #177146; --ok-line: #A9E0C0;
  --amber-bg: #FFF3CC; --amber-ink: #8A6D00; --amber-line: #F0D98A;
  --red-bg: #FBE7E4; --red-ink: #B03A2E; --red-line: #F0C4BC;
  --gray-bg: #ECE9F0; --gray-ink: #5A5462; --gray-line: #C7C0D0;
  --shadow: 0 1px 4px rgba(70, 40, 110, .07);
  --shadow-lg: 0 4px 18px rgba(70, 40, 110, .10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px; overflow: hidden; display: flex; flex-direction: column;
}
:focus-visible { outline: 2px solid var(--brand); outline-offset: 1px; border-radius: 4px; }

/* ===== 站点导航（与主站画册风格一致） ===== */
.site-nav {
  flex: 0 0 auto; display: flex; align-items: center; justify-content: space-between;
  padding: 10px 22px; background: var(--surface); border-bottom: 1px solid var(--line);
}
.sn-brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.sn-en { font-size: 10px; letter-spacing: .3em; color: #A5A4AF; text-transform: uppercase; font-weight: 300; }
.sn-cn { font-size: 16px; font-weight: 800; color: #26252E; letter-spacing: .06em; }
.sn-tabs { display: flex; gap: 6px; }
.sn-tabs a {
  text-decoration: none; background: var(--panel2); color: var(--dim);
  border: 1px solid var(--line); padding: 7px 20px; border-radius: 8px; font-size: 13.5px;
}
.sn-tabs a:hover { border-color: #C9A8EE; color: var(--brand-deep); }
.sn-tabs a.active { background: var(--brand); color: #FFFFFF; border-color: var(--brand); font-weight: 600; }

main { flex: 1; min-height: 0; display: flex; }

/* ===== 技能节点（融合视图 / 详情共用） ===== */
.skill-node {
  display: flex; align-items: center; gap: 7px;
  background: #FBFAFD; border: 1px solid var(--line); border-left-width: 3px;
  border-radius: 7px; padding: 6px 9px; margin-bottom: 5px; cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.skill-node:hover { border-color: var(--brand); box-shadow: var(--shadow); }
.skill-node.optional { border-style: dashed; border-left-style: solid; }
.skill-node.hl { outline: 2px solid var(--brand); }
.skill-node .nm { flex: 1; font-size: 13px; line-height: 1.35; }
.skill-node .sid { font-size: 10.5px; color: var(--dim); }
.badge-p {
  font-size: 10px; background: var(--tint); color: var(--brand-ink);
  border-radius: 4px; padding: 1px 5px; flex: 0 0 auto;
}
.skill-node.pending { background: #F5F3F7; border-style: dashed; border-left-style: solid; }
.skill-node.pending .nm, .skill-node.pending .sid { color: #9A93A5; }
.badge-pending {
  font-size: 9.5px; background: var(--gray-bg); color: var(--gray-ink); border: 1px dashed var(--gray-line);
  border-radius: 4px; padding: 1px 5px; flex: 0 0 auto; white-space: nowrap;
}
.skill-node.carrier { background: #FAF9FB; }
.badge-q {
  font-size: 10px; font-weight: 700; width: 16px; height: 16px; border-radius: 50%;
  background: var(--warm); color: var(--warm-ink); display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 auto; cursor: help;
}

/* ===== 详情侧栏 ===== */
.detail {
  flex: 0 0 320px; background: var(--surface); border-left: 1px solid var(--line);
  padding: 16px; overflow-y: auto;
}
.detail.hidden { display: none; }
.detail h2 { font-size: 16px; margin-bottom: 4px; }
.detail .sub2 { color: var(--dim); font-size: 12px; margin-bottom: 12px; }
.detail .kv { display: flex; margin-bottom: 6px; font-size: 13px; }
.detail .kv b, .md-right .kv b { color: var(--dim); font-weight: 400; width: 84px; flex: 0 0 auto; margin-right: 6px; }
.detail h4 { margin: 14px 0 8px; font-size: 13px; color: var(--brand-deep); }
.mini-models { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.mini-model {
  background: #FBFAFD; border: 1px solid var(--line); border-radius: 8px;
  padding: 6px; cursor: pointer; text-align: center;
}
.mini-model:hover { border-color: var(--brand); }
.mini-model img { width: 100%; border-radius: 5px; aspect-ratio: 1; object-fit: cover; background: #F4F2F6; }
.mini-model .mn { font-size: 11.5px; margin-top: 4px; line-height: 1.3; }
.mini-model .rel { font-size: 10px; color: var(--c-primary-edge); }
.mini-model .rel.review { color: var(--c-review-edge); }
.mini-model.concept { border-style: dashed; border-color: var(--gray-line); }
.mini-model.concept:hover { border-color: var(--gray-ink); }
.mini-model .rel.c-primary { color: var(--c-primary-edge); }
.mini-model .rel.c-review { color: #8A93A8; }
.mini-model .rel.c-opportunity { color: #9AA2B2; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  font-size: 11.5px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 12px; padding: 3px 9px; cursor: pointer; color: var(--text);
}
.chip:hover { border-color: var(--brand); }
.chip.primary { border-color: rgba(232, 96, 60, .55); color: #C24E1E; }
.chip.review { border-color: #C9CFDC; color: #5A6579; }
.chip.opportunity { border-color: var(--gray-line); color: var(--gray-ink); border-style: dashed; }
.chip.ref { border-color: #B4A8D0; color: #6A5A96; border-style: dashed; cursor: default; }

/* ===== 内容库 ===== */
#view-models { flex-direction: column; overflow-y: auto; width: 100%; }
#library-status {
  flex: 0 0 auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 3;
}
#library-status .f-label, #model-filters .f-label, #course-filters .f-label { color: var(--dim); font-size: 12.5px; }
#model-filters, #course-filters {
  flex: 0 0 auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 7px 16px; background: var(--surface);
}
#course-filters { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.fbtn {
  background: var(--panel2); color: var(--dim); border: 1px solid var(--line);
  border-radius: 14px; padding: 4px 12px; font-size: 12.5px; cursor: pointer;
}
.fbtn:hover { border-color: #C9A8EE; color: var(--brand-deep); }
.fbtn.on { background: var(--brand); color: #FFFFFF; border-color: var(--brand); }
#library-grid { flex: 0 0 auto; padding: 16px; column-width: 230px; column-gap: 14px; }
.model-card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: 18px 6px 18px 6px; overflow: hidden; cursor: pointer;
  box-shadow: var(--shadow); transition: border-color .15s, box-shadow .15s;
  break-inside: avoid; margin-bottom: 14px; display: inline-block; width: 100%;
}
.model-card:hover { border-color: #C9A8EE; box-shadow: var(--shadow-lg); }
.model-card img { width: 100%; height: auto; display: block; background: #F4F2F6; }
.model-card .mc-body { padding: 10px 12px 12px; }
.model-card .mc-name { font-weight: 600; font-size: 14px; }
.model-card .mc-id { color: var(--dim); font-size: 11px; margin: 2px 0 6px; }
.model-card .mc-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.model-card .mc-tags span { font-size: 10.5px; background: var(--panel2); border-radius: 8px; padding: 2px 7px; color: var(--dim); }
.mc-tags .skill-tag { background: var(--tint) !important; color: var(--brand-ink) !important; }
.mc-tags .risk { background: var(--red-bg) !important; color: var(--red-ink) !important; }
/* 概念课程：中性灰 + 虚线，不整卡降透明度 */
.course-card { border-style: dashed; border-color: var(--gray-line); }
.course-card .mc-name { color: #4A4452; }
.mc-min {
  position: absolute; top: 10px; right: 10px; font-size: 10.5px;
  background: rgba(39, 35, 45, .82); border-radius: 6px; padding: 3px 7px; color: #FFFFFF;
}
.mc-est { font-size: 11px; color: #5A5462; margin-bottom: 6px; }
.mc-est i, .mc-min i {
  font-style: normal; font-size: 9px; background: var(--warm); color: var(--warm-ink);
  border-radius: 3px; padding: 0 3px; margin-left: 2px; vertical-align: 1px;
}

/* ===== 弹窗 ===== */
#modal {
  position: fixed; inset: 0; background: rgba(39, 35, 45, .38); z-index: 50;
  display: flex; align-items: center; justify-content: center;
}
#modal.hidden { display: none; }
#modal-card {
  position: relative; width: min(980px, 94vw); max-height: 92vh; overflow-y: auto;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 20px 6px 20px 6px; padding: 22px; box-shadow: var(--shadow-lg);
}
#modal-close {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  background: var(--panel2); color: var(--dim); border: 1px solid var(--line);
  width: 30px; height: 30px; border-radius: 50%; cursor: pointer; font-size: 13px;
}
#modal-close:hover { border-color: var(--brand); color: var(--brand-deep); }
.md-top { display: flex; gap: 18px; }
.md-left { flex: 0 0 330px; }
.md-left img.cover { width: 100%; border-radius: 10px; background: #F4F2F6; }
#viewer3d { width: 100%; height: 300px; margin-top: 12px; background: #F4F0F9; border-radius: 10px; position: relative; }
#viewer3d .v3d-hint { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: var(--dim); font-size: 12px; text-align: center; padding: 0 24px; line-height: 1.7; }
.v3d-pending {
  margin-top: 12px; height: 120px; border: 1.5px dashed #D9C2F5; border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--dim); font-size: 13px; gap: 5px; background: #FAF6FE;
}
.v3d-pending span { font-size: 11px; opacity: .8; }
.md-right { flex: 1; min-width: 0; }
.md-right h2 { font-size: 19px; }
.md-right .sub2 { color: var(--dim); font-size: 12px; margin: 4px 0 12px; }
.md-right h4 { margin: 14px 0 7px; font-size: 13px; color: var(--brand-deep); }
.warn-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.warn { font-size: 11.5px; border-radius: 6px; padding: 3px 9px; }
.warn.candidate { background: var(--amber-bg); color: var(--amber-ink); border: 1px solid var(--amber-line); }
.warn.active { background: var(--ok-bg); color: var(--ok-ink); border: 1px solid var(--ok-line); }
.warn.est { background: var(--tint); color: var(--brand-ink); border: 1px solid #D9C2F5; }
.warn.novalid { background: var(--red-bg); color: var(--red-ink); border: 1px solid var(--red-line); }
.warn.pending { background: var(--gray-bg); color: var(--gray-ink); border: 1px dashed var(--gray-line); cursor: help; }
.warn.carrier { background: var(--amber-bg); color: var(--amber-ink); border: 1px solid var(--amber-line); }
.radar-wrap { display: flex; gap: 14px; align-items: center; }
.radar-note { font-size: 11px; color: var(--dim); line-height: 1.8; }

/* ===== 关联图 ===== */
#view-graph { position: relative; background: #FBFAFD; width: 100%; }
#graph-toolbar {
  position: absolute; top: 10px; left: 14px; z-index: 3;
  display: flex; gap: 14px; align-items: center;
  background: rgba(255, 255, 255, .95); border: 1px solid var(--line);
  border-radius: 9px; padding: 7px 14px; font-size: 12.5px; color: var(--dim);
  box-shadow: var(--shadow);
}
#graph-toolbar label { cursor: pointer; user-select: none; }
#graph-toolbar input { accent-color: var(--brand); }
#graph-reset { background: var(--panel2); color: var(--dim); border: 1px solid var(--line); border-radius: 6px; padding: 3px 10px; cursor: pointer; font-size: 12px; }
#graph-reset:hover { border-color: var(--brand); color: var(--brand-deep); }
#graph-toolbar .hint { font-size: 11px; opacity: .75; }
#graph { width: 100%; height: 100%; display: block; }
.g-link { stroke-opacity: .6; }
.g-link.primary { stroke: var(--c-primary-edge); stroke-width: 2.2px; }
.g-link.review { stroke: var(--c-review-edge); stroke-width: 1px; stroke-dasharray: 4 4; }
.g-link.model_slot { stroke: #9A7BE0; stroke-width: 1.6px; }
.g-link.knowledge { stroke: var(--c-knowledge); stroke-width: .8px; stroke-opacity: .35; }
.g-link.c-primary { stroke: #E8785A; stroke-width: 2.2px; stroke-dasharray: 7 5; }
.g-link.c-review { stroke: #98A2B8; stroke-width: 1px; stroke-dasharray: 4 4; }
.g-link.c-opportunity { stroke: #A5ADBC; stroke-width: .7px; stroke-dasharray: 2 4; stroke-opacity: .6; }
.g-link.c-reference { stroke: #9AA2B2; stroke-width: 1px; stroke-dasharray: 1.5 4; stroke-opacity: .75; }
.g-node { cursor: pointer; }
.g-node text { font-size: 10px; fill: var(--text); pointer-events: none; paint-order: stroke; stroke: rgba(255, 255, 255, .92); stroke-width: 3px; }
.g-node.selected circle { stroke: var(--brand); stroke-width: 2.5px; }
.g-node.concept circle { fill-opacity: .85; }
.dimmed { opacity: .15; }
#graph-legend {
  position: absolute; bottom: 12px; left: 14px; z-index: 3;
  background: rgba(255, 255, 255, .95); border: 1px solid var(--line); border-radius: 9px;
  padding: 8px 13px; font-size: 11.5px; color: var(--dim); line-height: 1.9;
  box-shadow: var(--shadow);
}
.sw { display: inline-block; width: 18px; height: 0; border-top: 2px solid; margin-right: 6px; vertical-align: middle; }
.sw.dash { border-top-style: dashed; border-top-width: 1.5px; }
#view-graph .detail { position: absolute; top: 0; right: 0; bottom: 0; width: 320px; flex: none; z-index: 4; box-shadow: var(--shadow-lg); }

/* ===== 融合视图 ===== */
#view-fusion { flex-direction: row; width: 100%; }
#fusion-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
#fusion-toolbar {
  flex: 0 0 auto; display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  padding: 9px 16px; background: var(--surface); border-bottom: 1px solid var(--line);
  font-size: 12px; color: var(--dim);
}
#fusion-toolbar .lg { display: flex; align-items: center; gap: 6px; }
#fusion-toolbar .lg.dim { opacity: .8; }
#fusion-toolbar .swatch { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
#fusion-toolbar .swatch.eng { background: var(--brand); }
#fusion-toolbar .swatch.mod { background: var(--warm); }
#fusion-toolbar .swatch.paint { background: var(--c-painting); }
#fusion-scroll { flex: 1; overflow: auto; padding: 0 16px 16px; position: relative; }
#fusion-arrows { position: absolute; top: 0; left: 0; pointer-events: none; z-index: 4; }
.farrow-path { fill: none; stroke: #A79BB8; stroke-width: 1.4px; stroke-dasharray: 5 4; stroke-opacity: .9; }
.farrow-label { font-size: 10px; fill: #706878; paint-order: stroke; stroke: rgba(255, 255, 255, .95); stroke-width: 3px; }
#fusion { display: flex; gap: 12px; min-width: max-content; position: relative; z-index: 1; }
.fstage { width: 252px; flex: 0 0 auto; display: flex; flex-direction: column; gap: 8px; }
.fstage-head {
  position: sticky; top: 0; z-index: 2; background: var(--bg);
  border-bottom: 2px solid #D9C2F5; padding: 14px 2px 8px;
}
.fstage-head b { font-size: 15px; color: var(--brand-deep); margin-right: 7px; }
.fstage-head span { font-size: 13px; font-weight: 600; }
.fstage-head i { display: block; font-style: normal; color: var(--dim); font-size: 11px; margin-top: 3px; line-height: 1.45; }
.flane { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 8px; box-shadow: var(--shadow); }
.flane.eng { border-top: 3px solid var(--brand); }
.flane.mod { border-top: 3px solid var(--warm); }
.flane.paint { border-top: 3px solid var(--c-painting); }
.flane-label { display: flex; align-items: center; gap: 7px; font-size: 11.5px; font-weight: 600; margin-bottom: 7px; }
.flane-label b { border-radius: 5px; padding: 1.5px 8px; font-size: 11px; letter-spacing: .5px; }
.flane.eng .flane-label b { background: var(--brand); color: #FFFFFF; }
.flane.mod .flane-label b { background: var(--warm); color: var(--warm-ink); }
.flane.paint .flane-label b { background: var(--c-painting); color: #FFFFFF; }
.flane.eng .flane-label span { color: var(--brand-deep); }
.flane.mod .flane-label span { color: var(--warm-ink); }
.flane.paint .flane-label span { color: var(--c-painting-deep); }
.flane-label em { font-style: normal; font-weight: 400; color: var(--dim); margin-left: auto; }
.flane-empty { color: var(--dim); font-size: 11.5px; padding: 8px 4px; border: 1px dashed var(--line); border-radius: 7px; text-align: center; }
.fgroup { margin-bottom: 8px; }
.fgroup-name { font-size: 10.5px; margin: 0 1px 4px; letter-spacing: .5px; cursor: pointer; user-select: none; }
.fgroup-name::before { content: "▾"; display: inline-block; margin-right: 5px; width: 10px; }
.fgroup.collapsed .fgroup-name::before { content: "▸"; }
.fgroup.collapsed .fgroup-body { display: none; }
.flane.eng .fgroup-name { color: var(--brand-deep); }
.flane.eng .fgroup-name:hover { color: var(--brand); }
.flane.mod .fgroup-name { color: var(--warm-ink); }
.flane.mod .fgroup-name:hover { color: #4A3A00; }
.flane.paint .fgroup-name { color: var(--c-painting-deep); }
.flane.paint .fgroup-name:hover { color: var(--c-painting); }
#view-fusion .flane.eng .skill-node { background: #FBF8FE; }
#view-fusion .flane.eng .skill-node:hover { border-color: var(--brand); }
#view-fusion .flane.eng .skill-node .sid { color: #9A6BD8; }
#view-fusion .flane.mod .skill-node { background: #FFFDF6; }
#view-fusion .flane.mod .skill-node:hover { border-color: #E3B83C; }
#view-fusion .flane.mod .skill-node .sid { color: #A8832A; }
#view-fusion .flane.mod .badge-p { background: var(--amber-bg); color: var(--amber-ink); }
#view-fusion .flane.paint .skill-node { background: #F6FCFB; }
#view-fusion .flane.paint .skill-node:hover { border-color: var(--c-painting); }
#view-fusion .flane.paint .skill-node .sid { color: var(--c-painting-deep); }
#view-fusion .flane.paint .badge-p { background: var(--c-painting-bg); color: var(--c-painting-deep); }
#view-fusion .skill-node { padding: 4px 7px; margin-bottom: 4px; gap: 5px; }
#view-fusion .skill-node .nm { font-size: 12px; }
#view-fusion .skill-node .sid { font-size: 10px; }
.admit {
  margin-top: 6px; font-size: 10.5px; color: var(--brand-ink);
  background: var(--tint); border: 1px dashed #D9C2F5;
  border-radius: 6px; padding: 3px 8px;
}
#fusion-eq {
  display: flex; align-items: flex-start; gap: 14px; margin-top: 14px;
  border: 1px dashed #D9C2F5; border-radius: 10px; padding: 9px 14px;
  min-width: max-content; position: relative; z-index: 1; background: #FAF6FE;
}
.feq-label b { color: var(--c-slot); font-size: 14px; display: block; }
.feq-label span { color: var(--dim); font-size: 11px; display: block; margin-top: 2px; max-width: 150px; line-height: 1.5; }
.feq-nodes { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.feq-nodes .skill-node { margin-bottom: 0; width: 300px; background: var(--surface); }
#fusion-note { margin-top: 12px; color: var(--dim); font-size: 11px; line-height: 1.6; min-width: max-content; padding-right: 20px; position: relative; z-index: 1; }

@media (max-width: 760px) {
  .sn-cn { font-size: 14px; }
  .sn-en { display: none; }
  .sn-tabs a { padding: 6px 12px; font-size: 12.5px; }
}