:root {
      --main: #ea580c;
      --accent: #d97706;
      --bg: #fffbf5;
      --ink: #1c1917;
      --sharp-shadow: 8px 8px 0 rgba(28, 25, 23, 0.9);
      --border-w: 3px;
    }
    * { border-radius: 0 !important; }
    body {
      background-color: var(--bg);
      color: var(--ink);
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
      font-weight: 400;
      line-height: 1.6;
    }
    h1, h2, h3, h4, .display-hero {
      font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
      font-weight: 900;
      letter-spacing: -0.01em;
    }
    /* 硬朗几何背景 */
    .geom-bg {
      position: relative;
      overflow: hidden;
    }
    .geom-bg::before {
      content: '';
      position: absolute;
      top: -30px; left: -30px;
      width: 240px; height: 240px;
      background: var(--accent);
      opacity: 0.15;
      clip-path: polygon(0 0, 100% 0, 0 100%);
      z-index: 0;
    }
    .geom-bg::after {
      content: '';
      position: absolute;
      bottom: 10%; right: 5%;
      width: 140px; height: 140px;
      background: var(--main);
      opacity: 0.1;
      border-radius: 50%;
      z-index: 0;
    }
    .geom-bg > * { position: relative; z-index: 2; }

    /* 导航粗犷边框 */
    .navbar {
      border-bottom: 3px solid var(--ink);
      background: var(--bg);
      box-shadow: 0 4px 0 rgba(0,0,0,0.03);
    }
    .navbar-brand {
      font-weight: 900;
      font-size: 1.9rem;
      letter-spacing: -0.02em;
      color: var(--ink);
      border: 3px solid var(--ink);
      padding: 0.1rem 0.8rem;
      box-shadow: 5px 5px 0 var(--ink);
      transition: all 0.1s ease;
      background: white;
    }
    .navbar-brand:hover { box-shadow: 2px 2px 0 var(--ink); transform: translate(3px,3px); }
    .nav-link {
      font-weight: 700;
      color: var(--ink) !important;
      margin: 0 0.4rem;
      border-bottom: 3px solid transparent;
      padding-bottom: 2px;
    }
    .nav-link:hover { border-bottom-color: var(--main); color: var(--main) !important; }
    .btn-sharp {
      background: var(--main);
      color: white;
      border: 3px solid var(--ink);
      box-shadow: 5px 5px 0 var(--ink);
      font-weight: 700;
      transition: 0.12s ease;
    }
    .btn-sharp:hover {
      box-shadow: 2px 2px 0 var(--ink);
      transform: translate(3px,3px);
      background: var(--accent);
      color: white;
    }
    /* 卡片硬朗风格 */
    .hard-card {
      background: white;
      border: 3px solid var(--ink);
      box-shadow: 8px 8px 0 var(--ink);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      padding: 1.8rem 1.2rem;
      height: 100%;
    }
    .hard-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 12px 12px 0 var(--ink);
    }
    .hard-card i {
      color: var(--main);
      font-size: 2.6rem;
      margin-bottom: 1rem;
    }
    .step-number {
      display: inline-block;
      background: var(--main);
      color: white;
      border: 3px solid var(--ink);
      box-shadow: 4px 4px 0 var(--ink);
      padding: 0.2rem 0.8rem;
      font-weight: 900;
      font-size: 1.5rem;
    }
    .section-title {
      font-size: 2.8rem;
      font-weight: 900;
      border-left: 10px solid var(--main);
      padding-left: 1.2rem;
      margin-bottom: 2rem;
      letter-spacing: -0.02em;
    }
    .footer-border {
      border-top: 4px solid var(--ink);
      background: #f6efe5;
    }
    .friend-links {
      border: 3px dashed var(--ink);
      padding: 1.2rem 1.5rem;
      background: rgba(234,88,12,0.04);
    }
    .back-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 52px;
      height: 52px;
      background: var(--main);
      border: 3px solid var(--ink);
      box-shadow: 5px 5px 0 var(--ink);
      color: white;
      font-size: 1.6rem;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      visibility: hidden;
      transition: 0.25s;
      z-index: 1000;
      cursor: pointer;
    }
    .back-to-top.show {
      opacity: 1;
      visibility: visible;
    }
    .back-to-top:hover {
      background: var(--accent);
      transform: translate(2px,2px);
      box-shadow: 2px 2px 0 var(--ink);
    }
    img { filter: grayscale(0.2) contrast(1.05); }

/* --- 子页面追加 --- */
/* 确保 Bootstrap 组件不破坏深色/暖色视觉，但本页尽量少用组件类 */
    .hard-card, .card, .list-group-item {
      background: var(--bg);
      color: var(--ink);
      border: var(--border-w) solid var(--ink);
      box-shadow: var(--sharp-shadow);
    }
/* 本页特有：时间线/引文 */
    .about-quote {
      background: rgba(234, 88, 12, 0.06);
      border-left: 8px solid var(--main);
      padding: 1.5rem 2rem;
      font-size: 1.15rem;
      font-weight: 500;
      box-shadow: 4px 4px 0 rgba(28,25,23,0.2);
    }
.day-chip {
      display: inline-block;
      background: var(--ink);
      color: var(--bg);
      padding: 0.2rem 1rem;
      font-weight: 700;
      letter-spacing: 1px;
      margin-right: 0.5rem;
      border: 2px solid var(--ink);
      box-shadow: 3px 3px 0 var(--main);
    }
.friend-links a {
      text-decoration: none;
      font-weight: 600;
      margin-right: 1.5rem;
      color: var(--main);
      border-bottom: 2px solid var(--accent);
    }
.friend-links a:hover {
      background: var(--ink);
      color: var(--bg);
      border-bottom-color: var(--ink);
    }

/* --- 子页面追加 --- */
/* 隐私条款页专属补充样式 */
        .privacy-section { background: var(--bg); border: var(--border-w) solid var(--ink); box-shadow: var(--sharp-shadow); padding: 2.5rem; margin-bottom: 2.5rem; }
.privacy-section h2 { font-weight: 900; color: var(--main); margin-bottom: 1.5rem; font-size: 1.75rem; position: relative; display: inline-block; }
.privacy-section h2::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 60px; height: 4px; background: var(--accent); }
.privacy-section h3 { font-weight: 700; color: var(--ink); margin-top: 1.75rem; margin-bottom: 1rem; font-size: 1.25rem; }
.privacy-section p { line-height: 1.9; margin-bottom: 1rem; color: var(--ink); }
.privacy-section ul { margin-bottom: 1.25rem; padding-left: 1.25rem; }
.privacy-section ul li { margin-bottom: 0.6rem; line-height: 1.7; position: relative; padding-left: 0.75rem; }
.privacy-section ul li::before { content: '→'; color: var(--main); position: absolute; left: -0.75rem; font-weight: 700; }
.privacy-updated { background: var(--main); color: #fff; display: inline-block; padding: 0.35rem 1.25rem; font-weight: 700; letter-spacing: 0.5px; box-shadow: 4px 4px 0 var(--ink); margin-bottom: 1.5rem; font-size: 0.9rem; }
.contact-email { background: rgba(234, 88, 12, 0.08); border-left: 5px solid var(--main); padding: 1.25rem 1.5rem; font-weight: 600; color: var(--ink); margin: 1.5rem 0; }
.contact-email a { color: var(--main); text-decoration: underline; font-weight: 800; }
.table-custom { width: 100%; border: 3px solid var(--ink); margin: 1.5rem 0; }
.table-custom th { background: var(--main); color: #fff; font-weight: 700; padding: 0.75rem 1rem; border: 2px solid var(--ink); text-align: left; }
.table-custom td { padding: 0.75rem 1rem; border: 2px solid var(--ink); background: var(--bg); color: var(--ink); }
.table-custom tr:nth-child(even) td { background: rgba(234, 88, 12, 0.04); }
.highlight-box { background: rgba(217, 119, 6, 0.08); border: 3px solid var(--accent); padding: 1.5rem; margin: 1.5rem 0; box-shadow: 4px 4px 0 rgba(28, 23, 22, 0.15); }
.highlight-box p:last-child { margin-bottom: 0; }
.privacy-section { padding: 1.5rem; }
.table-custom { font-size: 0.9rem; }
.privacy-section h2 { font-size: 1.4rem; }

/* --- 子页面追加 --- */
.map-section { margin-bottom: 2.5rem; }
.map-section h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 3px solid var(--main); display: inline-block; }
.map-section h3 { font-size: 1.15rem; font-weight: 700; margin-top: 1.25rem; margin-bottom: 0.5rem; color: var(--main); }
.map-list { list-style: none; padding: 0; margin: 0; }
.map-list li { padding: 0.4rem 0; border-bottom: 1px dashed rgba(28, 25, 23, 0.15); }
.map-list li:last-child { border-bottom: none; }
.map-list a { color: var(--ink); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.map-list a:hover { color: var(--main); }
.map-list a i { color: var(--main); margin-right: 0.5rem; font-size: 0.8rem; width: 16px; text-align: center; }
.map-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
.map-card { border: var(--border-w) solid var(--ink); box-shadow: var(--sharp-shadow); padding: 1rem 1.25rem; background: #fff; transition: transform 0.2s; }
.map-card:hover { transform: translate(-2px, -2px); }
.map-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.map-card ul { list-style: none; padding: 0; margin: 0; }
.map-card ul li { padding: 0.25rem 0; font-size: 0.9rem; }
.map-card ul li a { color: var(--ink); text-decoration: none; }
.map-card ul li a:hover { color: var(--main); text-decoration: underline; }
.map-note { background: rgba(234, 88, 12, 0.08); border-left: 4px solid var(--main); padding: 1rem 1.25rem; margin: 1.5rem 0; border-radius: 0 8px 8px 0; }
.map-note p { margin: 0; font-size: 0.95rem; }