/* =========================================================================
 * 「星斗引航」设计系统 —— 简约科技星航风（浅色版）
 * 整体白色底，深蓝 + 橘色作为点缀色
 * ========================================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  /* 背景层级（浅色） */
  --bg-0: #f6f8fb;
  --bg-1: #eef2f8;
  --bg-2: #ffffff;
  --bg-3: #f8fafd;
  --bg-4: #e9eef6;
  --bg-hover: #eef3fb;

  /* 深蓝点缀 */
  --blue-100: #eaf1ff;
  --blue-200: #c9dbff;
  --blue-300: #5f8fe8;
  --blue-400: #3d6fd6;
  --blue-500: #2b5fc0;
  --blue-600: #1f4a99;

  /* 橘色点缀 */
  --orange: #ff7a1a;
  --orange-strong: #ff6200;
  --orange-soft: #ff9a3d;
  --orange-glow: rgba(255, 122, 26, 0.22);

  /* 文本（深色） */
  --text-0: #17233a;
  --text-1: #3a4a66;
  --text-2: #6b7c99;
  --text-3: #9aa7bd;

  /* 线条 */
  --line: #e6ebf3;
  --line-strong: #d4dce9;

  /* 语义色 */
  --green: #14a06b;
  --green-bg: rgba(20, 160, 107, 0.10);
  --red: #e0484d;
  --red-bg: rgba(224, 72, 77, 0.10);
  --amber: #df8d18;
  --amber-bg: rgba(223, 141, 24, 0.12);
  --cyan: #0d97b4;
  --violet: #7a5bd6;

  /* 圆角 / 阴影 */
  --r-sm: 9px;
  --r-md: 13px;
  --r-lg: 18px;
  --r-xl: 24px;
  --shadow: 0 14px 40px rgba(23, 35, 58, 0.10);
  --shadow-soft: 0 6px 20px rgba(23, 35, 58, 0.06);
  --glow-card: 0 0 0 1px rgba(255, 122, 26, 0.35), 0 10px 30px rgba(255, 122, 26, 0.14);

  /* 尺寸 */
  --topbar-h: 62px;

  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue",
    system-ui, -apple-system, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", "Consolas", "JetBrains Mono", monospace;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text-0);
  background: var(--bg-0);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 星航背景：浅色 + 微光星点（点缀，不喧宾夺主） */
.sgds-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1000px 620px at 86% -12%, rgba(61, 111, 214, 0.09), transparent 58%),
    radial-gradient(760px 520px at -8% 108%, rgba(255, 122, 26, 0.06), transparent 56%),
    linear-gradient(180deg, #fcfdff 0%, #f5f7fb 100%);
}
.sgds-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.2px 1.2px at 11% 20%, rgba(61, 111, 214, 0.35) 50%, transparent 52%),
    radial-gradient(1px 1px at 26% 71%, rgba(61, 111, 214, 0.25) 50%, transparent 52%),
    radial-gradient(1.6px 1.6px at 43% 33%, rgba(255, 122, 26, 0.38) 50%, transparent 52%),
    radial-gradient(1px 1px at 60% 10%, rgba(61, 111, 214, 0.28) 50%, transparent 52%),
    radial-gradient(1px 1px at 72% 52%, rgba(61, 111, 214, 0.22) 50%, transparent 52%),
    radial-gradient(1.7px 1.7px at 85% 26%, rgba(255, 122, 26, 0.34) 50%, transparent 52%),
    radial-gradient(1px 1px at 7% 60%, rgba(61, 111, 214, 0.24) 50%, transparent 52%),
    radial-gradient(1px 1px at 34% 86%, rgba(61, 111, 214, 0.2) 50%, transparent 52%),
    radial-gradient(1px 1px at 54% 92%, rgba(61, 111, 214, 0.22) 50%, transparent 52%),
    radial-gradient(1.5px 1.5px at 91% 70%, rgba(255, 122, 26, 0.3) 50%, transparent 52%),
    radial-gradient(1px 1px at 18% 8%, rgba(61, 111, 214, 0.24) 50%, transparent 52%),
    radial-gradient(1px 1px at 68% 40%, rgba(61, 111, 214, 0.2) 50%, transparent 52%);
  background-size: 100% 100%;
  opacity: 0.8;
  animation: twinkle 5.5s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes twinkle {
  0% { opacity: 0.5; }
  100% { opacity: 0.9; }
}

a { color: var(--blue-500); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--orange); }

::selection { background: rgba(255, 122, 26, 0.2); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--bg-4); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-300); background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 应用骨架 ---------- */
#app { min-height: 100vh; }
.app-shell { min-height: 100vh; }
.app-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding-top: var(--topbar-h);
}
.page-wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 32px 64px;
  flex: 1;
}

/* ---------- 顶部导航栏 ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--topbar-h);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px -22px rgba(23, 35, 58, 0.28);
}
.navbar-inner {
  max-width: 1440px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; gap: 28px;
  padding: 0 32px;
}
.navbar-brand {
  display: flex; align-items: center; gap: 12px;
  border: none; background: transparent; cursor: pointer; padding: 0; flex-shrink: 0;
}
.brand-mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  font-size: 22px; color: #fff;
  background: linear-gradient(135deg, #ff9a3d, #ff6200);
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(255, 98, 0, 0.28), inset 0 1px 0 rgba(255,255,255,0.3);
  flex-shrink: 0;
}
.brand-text { text-align: left; line-height: 1.15; }
.brand-name { font-size: 17.5px; font-weight: 800; letter-spacing: 1.5px; color: var(--text-0); }
.brand-sub { font-size: 10px; color: var(--text-3); letter-spacing: 2.5px; }

.navbar-nav {
  display: flex; align-items: center; gap: 4px; margin: 0 auto; flex-wrap: nowrap;
}
.nav-link {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 14px; border: none; background: transparent;
  color: var(--text-2); border-radius: 11px; cursor: pointer;
  font-size: 14.5px; font-weight: 500; font-family: inherit; white-space: nowrap;
  transition: all 0.17s ease; position: relative;
}
.nav-link .ico { font-size: 16px; color: var(--text-3); transition: color 0.17s; }
.nav-link:hover { color: var(--blue-600); background: var(--bg-hover); }
.nav-link:hover .ico { color: var(--blue-500); }
.nav-link.active { color: var(--orange-strong); font-weight: 600; }
.nav-link.active .ico { color: var(--orange); }
.nav-link.active::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%); bottom: 3px;
  width: 16px; height: 3px; border-radius: 3px; background: var(--orange);
  box-shadow: 0 0 8px var(--orange-glow);
}

.navbar-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-toggle { display: none; }

.user-menu { position: relative; }
.user-chip {
  display: flex; align-items: center; gap: 9px;
  padding: 4px 10px 4px 4px; border: 1px solid var(--line-strong);
  border-radius: 24px; background: #fff; cursor: pointer;
  color: var(--text-1); font-family: inherit; font-size: 14px; transition: all 0.15s;
}
.user-chip:hover { border-color: var(--blue-300); }
.user-chip-name { font-weight: 600; max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-dropdown {
  position: absolute; right: 0; top: calc(100% + 8px);
  width: 200px; padding: 6px;
  background: #fff;
  border: 1px solid var(--line-strong); border-radius: var(--r-md);
  box-shadow: var(--shadow); z-index: 60; animation: popIn 0.16s ease;
}
.user-dropdown-head {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px 12px;
  border-bottom: 1px solid var(--line); margin-bottom: 6px;
}
.user-dropdown-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 10px; border: none; background: transparent; color: var(--text-1);
  border-radius: 9px; cursor: pointer; font-size: 14px; font-family: inherit; text-align: left;
  transition: all 0.14s;
}
.user-dropdown-item:hover { background: var(--bg-hover); color: var(--text-0); }
.user-dropdown-item .ico { font-size: 17px; color: var(--text-3); }
.role-switch { padding: 10px 12px 12px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }

/* ---------- 移动端抽屉 ---------- */
.drawer-mask {
  position: fixed; inset: 0; z-index: 55;
  background: rgba(23, 35, 58, 0.32); backdrop-filter: blur(3px);
}
.drawer {
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 60;
  width: 262px; padding: 16px 12px;
  background: #fff;
  border-right: 1px solid var(--line);
  transform: translateX(-100%); transition: transform 0.24s ease;
  overflow-y: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; gap: 11px; padding: 6px 8px 18px; }
.drawer-head .brand-mark { width: 34px; height: 34px; font-size: 19px; border-radius: 10px; }
.drawer-item {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 12px 13px; margin: 2px 0; border: none; background: transparent;
  color: var(--text-1); border-radius: 11px; cursor: pointer;
  font-size: 15px; font-family: inherit; text-align: left; transition: all 0.15s;
}
.drawer-item .ico { font-size: 19px; color: var(--text-3); }
.drawer-item.active { background: var(--blue-100); color: var(--blue-600); }
.drawer-item.active .ico { color: var(--orange); }
.drawer-foot { display: flex; align-items: center; gap: 10px; margin-top: 14px; padding: 14px 8px 0; border-top: 1px solid var(--line); }

.avatar {
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700;
  color: #fff; background: linear-gradient(135deg, var(--blue-400), var(--orange));
  flex-shrink: 0;
}

/* ---------- 通用组件 ---------- */
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}
.card-pad { padding: 24px; }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 26px; }
.page-title { font-size: 25px; font-weight: 800; margin: 0; letter-spacing: 0.4px; color: var(--text-0); }
.page-sub { color: var(--text-2); margin: 5px 0 0; font-size: 13.5px; }

.h-row { display: flex; align-items: center; gap: 10px; }
.grow { flex: 1; min-width: 0; }
.mt8 { margin-top: 8px; } .mt16 { margin-top: 16px; } .mt24 { margin-top: 24px; }
.mb8 { margin-bottom: 8px; } .mb16 { margin-bottom: 16px; } .mb24 { margin-bottom: 24px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-split { display: grid; gap: 16px; grid-template-columns: 1fr 1.4fr; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 19px; border: 1px solid transparent; border-radius: 11px;
  cursor: pointer; font-size: 14px; font-family: inherit; font-weight: 600; line-height: 1.4;
  transition: all 0.17s ease; white-space: nowrap;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn .ico { font-size: 17px; }
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #ff9a3d, var(--orange) 55%, var(--orange-strong));
  box-shadow: 0 8px 22px rgba(255, 98, 0, 0.28);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 12px 28px rgba(255, 98, 0, 0.34); }
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-blue {
  color: #fff;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-600));
  box-shadow: 0 8px 20px rgba(43, 95, 192, 0.26);
}
.btn-blue:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.07); }
.btn-ghost { color: var(--text-1); background: #fff; border-color: var(--line-strong); }
.btn-ghost:hover:not(:disabled) { color: var(--blue-600); border-color: var(--blue-300); background: var(--bg-hover); }
.btn-danger { color: var(--red); background: transparent; border-color: rgba(224, 72, 77, 0.4); }
.btn-danger:hover:not(:disabled) { background: var(--red-bg); }
.btn-sm { padding: 6px 13px; font-size: 13px; border-radius: 9px; }
.btn-block { width: 100%; }
.btn-lg { padding: 13px 26px; font-size: 15.5px; }

/* 表单 */
.field { margin-bottom: 16px; }
.field-label { display: block; font-size: 13px; color: var(--text-1); margin-bottom: 7px; font-weight: 600; }
.field-label .req { color: var(--orange); margin-left: 2px; }
.input, .select, .textarea {
  width: 100%; padding: 11px 14px; font-size: 14px; font-family: inherit;
  color: var(--text-0); background: #fff;
  border: 1px solid var(--line-strong); border-radius: 11px;
  transition: border-color 0.16s, box-shadow 0.16s, background 0.16s;
}
.input:hover, .select:hover, .textarea:hover { border-color: rgba(61, 111, 214, 0.4); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--orange); background: #fff;
  box-shadow: 0 0 0 3px var(--orange-glow);
}
.textarea { min-height: 90px; resize: vertical; }
.select {
  appearance: none; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat;
}
.input::placeholder, .textarea::placeholder { color: var(--text-3); }
.field-hint { font-size: 12px; color: var(--text-3); margin-top: 5px; }
.form-error { color: var(--red); font-size: 13px; margin-top: 6px; }
input[type="checkbox"] { accent-color: var(--orange); width: 16px; height: 16px; cursor: pointer; }
input[type="range"] { accent-color: var(--orange); }

/* 标签 / 徽章 */
.tag {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 11px;
  font-size: 12px; border-radius: 20px; border: 1px solid var(--line-strong);
  color: var(--text-1); background: var(--bg-3); white-space: nowrap;
}
.tag-orange { color: var(--orange-strong); border-color: rgba(255,122,26,0.35); background: rgba(255,122,26,0.08); }
.tag-blue { color: var(--blue-600); border-color: rgba(43,95,192,0.28); background: rgba(43,95,192,0.07); }
.tag-green { color: var(--green); border-color: rgba(20,160,107,0.32); background: var(--green-bg); }
.tag-red { color: var(--red); border-color: rgba(224,72,77,0.32); background: var(--red-bg); }
.tag-amber { color: var(--amber); border-color: rgba(223,141,24,0.32); background: var(--amber-bg); }
.tag-cyan { color: var(--cyan); border-color: rgba(13,151,180,0.32); background: rgba(13,151,180,0.08); }

/* 状态点 */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--green); }
.dot-amber { background: var(--amber); }
.dot-red { background: var(--red); }

/* 列表 */
.list { display: flex; flex-direction: column; gap: 12px; }
.list-item {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px;
  cursor: pointer; border-radius: var(--r-md);
  transition: transform 0.14s, border-color 0.14s, background 0.14s, box-shadow 0.14s;
}
.list-item:hover { border-color: var(--line-strong); background: var(--bg-hover); }
.list-item:active { transform: scale(0.995); }

/* 扁平列表（非卡片式） */
.flat-list { display: flex; flex-direction: column; }
.flat-row {
  display: flex; align-items: center; gap: 14px;
  padding: 15px 20px; cursor: pointer;
  border-bottom: 1px solid var(--line);
  transition: background 0.14s;
}
.flat-row:last-child { border-bottom: none; }
.flat-row:hover { background: var(--bg-hover); }

/* 表格 */
.table-wrap { overflow-x: auto; border-radius: var(--r-md); }
table.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.table th { color: var(--text-2); font-size: 12px; font-weight: 700; letter-spacing: 0.8px; white-space: nowrap; text-transform: uppercase; }
.table tbody tr { transition: background 0.14s; }
.table tbody tr:hover { background: var(--bg-hover); }

/* 空状态 / 加载 */
.empty { text-align: center; padding: 52px 22px; color: var(--text-2); }
.empty .ico { font-size: 46px; color: var(--text-3); opacity: 0.7; }
.empty-title { margin: 14px 0 5px; font-size: 16px; color: var(--text-1); font-weight: 700; }
.empty-sub { font-size: 13px; }
.skeleton {
  background: linear-gradient(90deg, var(--bg-3) 25%, var(--bg-4) 50%, var(--bg-3) 75%);
  background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--r-sm);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Toast */
.toast-stack { position: fixed; top: 18px; right: 18px; z-index: 100; display: flex; flex-direction: column; gap: 10px; max-width: min(370px, calc(100vw - 32px)); }
.toast {
  display: flex; align-items: flex-start; gap: 11px; padding: 13px 16px;
  border-radius: var(--r-md); background: #fff;
  border: 1px solid var(--line-strong); box-shadow: var(--shadow);
  font-size: 14px; animation: toastIn 0.24s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.toast .ico { font-size: 18px; margin-top: 1px; }
.toast-info .ico { color: var(--blue-500); }
.toast-success .ico { color: var(--green); }
.toast-error .ico { color: var(--red); }
.toast-warn .ico { color: var(--amber); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px) scale(0.98); } to { opacity: 1; transform: none; } }

/* 弹窗 */
.modal-mask {
  position: fixed; inset: 0; z-index: 80;
  background: rgba(23, 35, 58, 0.36); backdrop-filter: blur(4px);
  display: grid; place-items: center; padding: 20px; animation: fadeIn 0.18s ease;
}
.modal {
  width: 100%; max-width: 560px; max-height: 88vh; overflow-y: auto;
  background: #fff;
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  box-shadow: var(--shadow); animation: popIn 0.22s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.modal-title { font-size: 17px; font-weight: 800; }
.modal-body { padding: 22px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 16px 22px; border-top: 1px solid var(--line); }
.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px;
  border: none; border-radius: var(--r-sm); background: transparent; color: var(--text-2);
  cursor: pointer; font-size: 18px; transition: all 0.15s;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-0); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn { from { opacity: 0; transform: translateY(16px) scale(0.97); } to { opacity: 1; transform: none; } }

/* 统计块 */
.stat { padding: 20px 22px; overflow: hidden; }
.stat-label { font-size: 12.5px; color: var(--text-2); letter-spacing: 0.6px; }
.stat-value { font-size: 30px; font-weight: 800; margin-top: 6px; font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat-value.orange { color: var(--orange); }
.stat-value.blue { color: var(--blue-500); }
.stat-value.green { color: var(--green); }
.stat-extra { font-size: 12px; color: var(--text-3); margin-top: 4px; }

/* 进度条 */
.progress { height: 9px; border-radius: 10px; background: var(--bg-1); overflow: hidden; }
.progress > span { display: block; height: 100%; border-radius: 10px; background: var(--orange); transition: width 0.45s ease; }

/* 知识图谱可点击节点 */
.kg-node { padding: 8px 10px; border-radius: 10px; cursor: pointer; margin-bottom: 6px; transition: background 0.14s, box-shadow 0.14s; }
.kg-node:hover { background: var(--bg-hover); }
.kg-node.active { background: var(--blue-100); box-shadow: inset 0 0 0 1px var(--blue-300); }

/* 分割线 */
.divider { height: 1px; background: var(--line); border: none; margin: 18px 0; }

/* 步骤指示器 */
.stepper { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.stepper-step { display: flex; align-items: center; gap: 8px; }
.stepper-num {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; font-size: 14px; color: var(--text-3);
  background: var(--bg-1); border: 1px solid var(--line-strong); transition: all 0.2s;
}
.stepper-label { font-size: 13px; color: var(--text-3); transition: color 0.2s; }
.stepper-step.active .stepper-num { color: #fff; background: var(--orange); border-color: transparent; box-shadow: 0 4px 14px rgba(255, 122, 26, 0.3); }
.stepper-step.active .stepper-label { color: var(--text-0); font-weight: 700; }
.stepper-step.done .stepper-num { color: var(--green); background: var(--green-bg); border-color: var(--green); }
.stepper-step.done .stepper-label { color: var(--text-1); }
.stepper-step.clickable { cursor: pointer; }
.stepper-step.clickable:hover .stepper-num { border-color: var(--orange); }
.stepper-line { flex: 1; height: 1px; background: var(--line-strong); min-width: 14px; }

/* 详情页左侧导航布局 */
.detail-layout { display: grid; grid-template-columns: 240px 1fr; gap: 28px; align-items: start; }
.detail-toc { position: sticky; top: calc(var(--topbar-h) + 20px); padding: 18px 14px; display: flex; flex-direction: column; gap: 6px; }
.toc-item {
  display: flex; align-items: center; gap: 11px;
  padding: 12px 16px; border: none; background: transparent; border-radius: 11px;
  cursor: pointer; font-size: 15px; color: var(--text-1); text-align: left;
  font-family: inherit; transition: all 0.16s;
}
.toc-item:hover { background: var(--bg-hover); }
.toc-item .ico { font-size: 18px; color: var(--text-3); transition: color 0.16s; }
.toc-item.active { background: var(--blue-100); color: var(--blue-600); font-weight: 600; }
.toc-item.active .ico { color: var(--orange); }
.detail-content { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.detail-section { scroll-margin-top: calc(var(--topbar-h) + 16px); }
.stem-text { font-size: 15.5px; line-height: 1.8; color: var(--text-0); }

/* 选择卡片 */
.choice-card {
  display: flex; align-items: center; gap: 12px; padding: 16px;
  border: 1px solid var(--line); border-radius: var(--r-md); cursor: pointer;
  transition: all 0.16s; background: #fff;
}
.choice-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.choice-card.selected { border-color: var(--orange); background: rgba(255, 122, 26, 0.05); box-shadow: var(--glow-card); }
.choice-card .check { margin-left: auto; color: var(--orange); font-size: 19px; }

/* 演示/模拟水印 */
.demo-banner {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border-radius: var(--r-md); background: var(--amber-bg);
  border: 1px solid rgba(223, 141, 24, 0.32); color: var(--amber);
  font-size: 13px; margin-bottom: 18px;
}
.demo-banner .ico { font-size: 17px; flex-shrink: 0; }

/* 前端预览模式横幅 */
.preview-banner {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 24px; font-size: 13px;
  background: linear-gradient(90deg, rgba(255, 122, 26, 0.10), rgba(61, 111, 214, 0.10));
  border-bottom: 1px solid var(--line);
  color: var(--text-1);
}
.preview-banner .ico { color: var(--orange); font-size: 16px; flex-shrink: 0; }
.preview-banner .btn { flex-shrink: 0; }

/* 免责声明 */
.disclaimer {
  font-size: 12px; color: var(--text-3); line-height: 1.7;
  padding: 10px 14px; border-left: 3px solid var(--line-strong);
  margin-top: 16px; border-radius: 0 6px 6px 0;
}

/* 代码/数值 */
.mono { font-family: var(--mono); font-size: 0.92em; }

details summary { user-select: none; }
pre { font-family: var(--mono); }

/* ---------- 首页（个人中心枢纽） ---------- */
.hero {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 26px 28px; margin-bottom: 22px; flex-wrap: wrap;
  background: linear-gradient(135deg, rgba(61, 111, 214, 0.08), rgba(255, 122, 26, 0.06)), #fff;
}
.hero-left { display: flex; align-items: center; gap: 16px; }
.hero-title { font-size: 24px; font-weight: 800; }
.hero-sub { color: var(--text-2); font-size: 13.5px; margin-top: 3px; max-width: 560px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.module-card {
  padding: 22px; cursor: pointer;
  display: flex; flex-direction: column; gap: 9px;
  transition: all 0.18s ease;
}
.module-card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: var(--shadow); }
.module-icon {
  width: 46px; height: 46px; display: grid; place-items: center;
  font-size: 22px; border-radius: 13px; margin-bottom: 4px;
}
.module-blue { color: var(--blue-500); background: rgba(43,95,192,0.08); border: 1px solid rgba(43,95,192,0.2); }
.module-orange { color: var(--orange); background: rgba(255,122,26,0.08); border: 1px solid rgba(255,122,26,0.2); }
.module-cyan { color: var(--cyan); background: rgba(13,151,180,0.08); border: 1px solid rgba(13,151,180,0.2); }
.module-violet { color: var(--violet); background: rgba(122,91,214,0.08); border: 1px solid rgba(122,91,214,0.2); }
.module-green { color: var(--green); background: rgba(20,160,107,0.08); border: 1px solid rgba(20,160,107,0.2); }
.module-amber { color: var(--amber); background: rgba(223,141,24,0.08); border: 1px solid rgba(223,141,24,0.2); }
.module-title { font-size: 18px; font-weight: 700; }
.module-desc { font-size: 13px; color: var(--text-2); line-height: 1.55; flex: 1; }
.module-enter { font-size: 13px; color: var(--orange); display: flex; align-items: center; gap: 5px; font-weight: 600; }
.module-enter .ico { font-size: 14px; transition: transform 0.15s; }
.module-card:hover .module-enter .ico { transform: translateX(3px); }

.flow-steps { display: flex; flex-direction: column; gap: 2px; }
.flow-step { display: flex; align-items: center; gap: 12px; padding: 4px 0; }
.flow-num {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; font-size: 14px; color: #fff; flex-shrink: 0;
  background: linear-gradient(135deg, var(--blue-400), var(--orange));
}
.flow-title { font-size: 14px; font-weight: 700; }
.flow-sub { font-size: 12px; color: var(--text-3); }
.flow-arrow { color: var(--text-3); font-size: 16px; padding: 1px 0 1px 14px; }

/* ---------- 首页落地页 ---------- */
.landing-hero { text-align: center; padding: 76px 24px 60px; }
.landing-logo {
  width: 120px; height: 120px; font-size: 64px;
  margin: 0 auto 30px; border-radius: 34px;
  animation: floatGlow 4s ease-in-out infinite;
}
@keyframes floatGlow {
  0%, 100% { transform: translateY(0); box-shadow: 0 14px 40px rgba(255, 98, 0, 0.30); }
  50% { transform: translateY(-11px); box-shadow: 0 24px 56px rgba(255, 98, 0, 0.44); }
}
.landing-title { font-size: 54px; font-weight: 800; letter-spacing: 4px; margin: 0; }
.landing-sub { font-size: 20px; color: var(--text-2); margin-top: 14px; font-weight: 600; letter-spacing: 1.5px; }
.landing-tagline { font-size: 16px; color: var(--text-3); margin: 18px auto 0; max-width: 560px; line-height: 1.85; }
.landing-cta { display: flex; gap: 14px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }

/* 入场 & 滚动显现动画 */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}
.anim-up { animation: fadeUp 0.75s cubic-bezier(0.2, 0.8, 0.2, 1) both; }
.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.revealed { opacity: 1; transform: none; }

.section-big { text-align: center; margin: 60px 0 26px; }
.section-big-title { font-size: 32px; font-weight: 800; margin: 0; letter-spacing: 1px; }
.section-big-sub { font-size: 14px; color: var(--text-2); margin-top: 8px; }
.section-big::after {
  content: ""; display: block; width: 46px; height: 3px; border-radius: 3px;
  margin: 18px auto 0; background: linear-gradient(90deg, var(--orange), var(--blue-400));
}

.feature-card { padding: 28px 20px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 10px; transition: transform 0.18s ease, box-shadow 0.18s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { width: 54px; height: 54px; display: grid; place-items: center; font-size: 26px; border-radius: 15px; }
.feature-title { font-size: 16px; font-weight: 700; }
.feature-desc { font-size: 13px; color: var(--text-2); line-height: 1.6; }

/* 页脚（联系我们）—— 全宽置于最底 */
.contact-footer {
  margin: 68px calc(50% - 50vw) 0;
  padding: 44px calc(50vw - 50%) 24px;
  background: linear-gradient(180deg, #f6f8fb, #edf1f8);
  border-top: 1px solid var(--line);
}
.contact-footer-title { font-size: 22px; font-weight: 800; text-align: center; letter-spacing: 1px; }
.contact-card { max-width: 560px; margin: 22px auto 0; }
.contact-item { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 9px 0; color: var(--text-1); font-size: 14px; }
.contact-item .ico { color: var(--orange); font-size: 17px; }
.copyright { text-align: center; color: var(--text-3); font-size: 12.5px; margin-top: 22px; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .navbar-nav { display: none; }
  .nav-demo { display: none; }
  .user-chip-name { display: none; }
  .nav-toggle {
    display: grid; place-items: center; width: 38px; height: 38px;
    border: 1px solid var(--line-strong); border-radius: 10px;
    background: #fff; color: var(--text-1); cursor: pointer; font-size: 20px;
  }
  .page-wrap { padding: 18px 16px 44px; }
  .page-title { font-size: 20px; }
  .grid-2, .grid-3, .grid-4, .grid-split { grid-template-columns: 1fr; }
  .stat-value { font-size: 26px; }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-toc { position: static; flex-direction: row; overflow-x: auto; padding: 8px; }
  .toc-item { white-space: nowrap; }
}

@media (min-width: 901px) {
  .drawer, .drawer-mask { display: none; }
}