:root {
    --mc-main: #38bdf8;
    --mc-accent: #a78bfa;
    --mc-bg: #0f172a;
    --mc-text: #e2e8f0;
    --mc-hard-shadow: 6px 6px 0 #000;
    --mc-border: 2px solid #1e293b;
    --mc-font-mono: 'Courier New', Courier, monospace;
  }
  * { border-radius: 0 !important; }
  body {
    background-color: var(--mc-bg);
    color: var(--mc-text);
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    letter-spacing: 0.01em;
    line-height: 1.5;
  }
  h1, h2, h3, .navbar-brand {
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.02em;
  }
  /* 几何背景装饰 */
  .geo-bg {
    position: relative;
    overflow-x: clip;
  }
  .geo-bg::before {
    content: '';
    position: absolute;
    top: 40px; left: 5%;
    width: 100px; height: 100px;
    background: var(--mc-main);
    opacity: 0.1;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    z-index: 0;
    pointer-events: none;
  }
  .geo-bg::after {
    content: '';
    position: absolute;
    bottom: 10%; right: 2%;
    width: 120px; height: 120px;
    background: var(--mc-accent);
    opacity: 0.08;
    clip-path: circle(50%);
    z-index: 0;
    pointer-events: none;
  }
  .geo-square {
    position: absolute;
    top: 20%; right: 8%;
    width: 60px; height: 60px;
    background: transparent;
    border: 4px solid var(--mc-main);
    opacity: 0.15;
    transform: rotate(15deg);
    z-index: 0;
    pointer-events: none;
  }
  /* 侧栏布局 */
  .layout-sidebar {
    display: flex;
    max-width: 1500px;
    margin: 0 auto;
    gap: 0;
  }
  .sidebar {
    width: 200px;
    flex-shrink: 0;
    background: #0b1220;
    border-right: var(--mc-border);
    padding: 1rem 0.75rem;
    position: sticky;
    top: 70px;
    height: calc(100vh - 70px);
    overflow-y: auto;
    z-index: 10;
    border-bottom: 2px solid #1e293b;
  }
  .main-col {
    flex: 1;
    min-width: 0;
    padding: 0 1.5rem 3rem 1.5rem;
  }
  /* 标签云 hero */
  .tagcloud-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    justify-content: center;
    align-items: center;
    background: #131c2f;
    padding: 1.8rem 1rem;
    border: var(--mc-border);
    box-shadow: var(--mc-hard-shadow);
    margin: 1.8rem 0 2.5rem;
  }
  .tagcloud-hero span {
    font-weight: 700;
    color: var(--mc-main);
    background: rgba(56, 189, 248, 0.08);
    padding: 4px 14px;
    border: 1px solid #2d3a52;
    font-size: 1rem;
    text-transform: uppercase;
    transition: all 0.1s;
  }
  .tagcloud-hero span:hover { background: var(--mc-main); color: #0f172a; }
  .btn-hard {
    background: var(--mc-main);
    border: 2px solid #000;
    box-shadow: 4px 4px 0 #000;
    font-weight: 700;
    text-transform: uppercase;
    color: #0f172a;
    padding: 10px 24px;
    display: inline-block;
    transition: 0.1s linear;
    background-size: 200% auto;
  }
  .btn-hard:hover {
    background-position: right center;
    background-image: linear-gradient(45deg, #38bdf8 0%, #a78bfa 50%, #38bdf8 100%);
    color: #0f172a;
    box-shadow: 6px 6px 0 #000;
    transform: translate(-1px,-1px);
  }
  /* 卡片区块 */
  .card-grid-hard {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.2rem;
  }
  .comic-card {
    background: #16213a;
    border: var(--mc-border);
    box-shadow: 5px 5px 0 rgba(0,0,0,0.5);
    transition: 0.1s;
    height: 100%;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
  }
  .comic-card:hover { transform: translate(-2px,-2px); box-shadow: 8px 8px 0 #000; }
  .comic-card img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    background: #2d3a52;
    display: block;
    border: 1px solid #2d3a52;
    filter: grayscale(10%);
  }
  .stat-number { font-family: var(--mc-font-mono); font-size: 2.2rem; font-weight: 600; color: var(--mc-accent); }
  .stat-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
  /* 步骤条 */
  .steps-h {
    display: flex;
    gap: 2rem;
    border-top: 2px solid #26334d;
    padding-top: 2rem;
  }
  .step-item { position: relative; flex: 1; }
  .step-num {
    font-family: var(--mc-font-mono);
    font-size: 3rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 2px var(--mc-main);
    line-height: 1;
  }
  .step-item p { font-size: 0.9rem; }
  /* FAQ */
  .faq-item {
    border-left: 6px solid var(--mc-accent);
    background: #101a2e;
    padding: 1rem 1.2rem;
    margin-bottom: 1rem;
    border-bottom: var(--mc-border);
  }
  /* 导航固定 */
  .sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1020;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid #1e293b;
    transition: background 0.3s;
  }
  .sticky-nav:hover { background: rgba(15, 23, 42, 0.95); }
  .navbar-brand { font-size: 2rem; margin-right: 2rem; color: var(--mc-main) !important; }
  .nav-link { color: var(--mc-text) !important; font-weight: 500; margin: 0 0.5rem; }
  .nav-link:hover { color: var(--mc-main) !important; }
  .footer-link a { color: var(--mc-main); }
  /* 渐变光泽 hover */
  .btn-flow {
    background: linear-gradient(100deg, #38bdf8 0%, #38bdf8 50%, #a78bfa 50%, #a78bfa 100%);
    background-size: 200% 100%;
    background-position: 0% 0;
  }
  .btn-flow:hover { background-position: 100% 0; }
  .lazy-fade { animation: fadeIn 0.5s; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
  /* 移动端 */
  @media (max-width: 992px) {
    .layout-sidebar { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; border-right: 0; border-bottom: var(--mc-border); }
  }
  @media (max-width: 768px) {
    .steps-h { flex-direction: column; gap: 1.5rem; }
  }
  .sidebar .side-nav { display: block; }
  .sidebar .side-nav a { display: block; padding: 0.4rem 0; color: var(--mc-text); text-decoration: none; border-bottom: 1px solid #253247; }
  .sidebar .side-nav a:hover { color: var(--mc-main); }
  .fs-small { font-size: 0.85rem; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 组件默认白底黑字，确保与深色站点一致 */
        .card, .card-body, .card-header, .card-footer {
            background: var(--mc-bg) !important;
            color: var(--mc-text) !important;
            border-color: #1e293b !important;
        }
.list-group-item {
            background: var(--mc-bg) !important;
            color: var(--mc-text) !important;
            border-color: #1e293b !important;
        }
.accordion-item, .accordion-button {
            background: var(--mc-bg) !important;
            color: var(--mc-text) !important;
            border-color: #1e293b !important;
        }
.accordion-button:not(.collapsed) {
            background: #1e293b !important;
            color: var(--mc-text) !important;
        }
.table {
            --bs-table-bg: transparent !important;
            color: var(--mc-text) !important;
            border-color: #1e293b !important;
        }
.form-control, .form-select {
            background: rgba(0,0,0,0.35) !important;
            color: var(--mc-text) !important;
            border-color: #1e293b !important;
        }
.form-control::placeholder {
            color: rgba(255,255,255,0.45) !important;
        }
.nav-link, .navbar-brand {
            color: var(--mc-text) !important;
        }
/* 自定义榜单样式，完全贴合本站硬朗风格 */
        .rank-hero {
            border-bottom: var(--mc-border);
            background: var(--mc-bg);
            padding: 2.5rem 0;
            margin-bottom: 2rem;
        }
.rank-hero h1 {
            font-family: var(--mc-font-mono);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--mc-main);
            text-shadow: 2px 2px 0 #000;
        }
.rank-section {
            margin-bottom: 3rem;
        }
.rank-section h2 {
            font-family: var(--mc-font-mono);
            font-weight: 700;
            border-left: 6px solid var(--mc-accent);
            padding-left: 1rem;
            color: var(--mc-accent);
            margin-bottom: 1.5rem;
        }
.rank-card {
            border: var(--mc-border);
            background: var(--mc-bg);
            box-shadow: var(--mc-hard-shadow);
            margin-bottom: 1.5rem;
            padding: 1.2rem;
            transition: transform 0.2s;
        }
.rank-card:hover {
            transform: translate(-2px, -2px);
            box-shadow: 8px 8px 0 #000;
        }
.rank-badge {
            font-family: var(--mc-font-mono);
            background: var(--mc-main);
            color: #0f172a;
            font-weight: 800;
            padding: 0.2rem 0.7rem;
            border: 2px solid #000;
            box-shadow: 2px 2px 0 #000;
            display: inline-block;
            margin-right: 0.8rem;
        }
.rank-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--mc-text);
        }
.rank-meta {
            font-size: 0.85rem;
            color: #94a3b8;
            font-family: var(--mc-font-mono);
        }
.rank-score {
            font-weight: 800;
            color: var(--mc-main);
            font-size: 1.4rem;
        }
.rank-comment {
            border-top: 1px dashed #334155;
            margin-top: 0.8rem;
            padding-top: 0.8rem;
            color: #cbd5e1;
            font-style: italic;
        }
.btn-rank-vote {
            background: var(--mc-accent);
            border: 2px solid #000;
            box-shadow: 3px 3px 0 #000;
            color: #0f172a;
            font-weight: 700;
            padding: 0.3rem 1.2rem;
            font-family: var(--mc-font-mono);
            font-size: 0.9rem;
        }
.btn-rank-vote:hover {
            background: #c4b5fd;
        }
footer {
            border-top: var(--mc-border);
            background: var(--mc-bg);
            color: var(--mc-text);
        }

/* --- 子页面追加 --- */
/* 本页专属微调 */
        .about-hero { padding: 4rem 0 2rem; }
.about-section { padding: 3.5rem 0; border-bottom: 2px solid #1e293b; }
.about-section:last-of-type { border-bottom: none; }
.about-title { font-size: 2.2rem; font-weight: 800; margin-bottom: 1.5rem; position: relative; display: inline-block; }
.about-title::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 60px; height: 4px; background: var(--mc-main); }
.about-lead { font-size: 1.1rem; line-height: 1.8; color: var(--mc-text); opacity: .9; }
.about-img-placeholder { width: 100%; height: 200px; background: linear-gradient(135deg, rgba(56,189,248,.1), rgba(167,139,250,.1)); border: var(--mc-border); box-shadow: var(--mc-hard-shadow); margin-bottom: 2rem; display: flex; align-items: center; justify-content: center; color: var(--mc-main); font-family: var(--mc-font-mono); font-size: .9rem; letter-spacing: 2px; }
.stat-box { background: rgba(255,255,255,.02); border: var(--mc-border); padding: 1.5rem; text-align: center; transition: all .3s ease; }
.stat-box:hover { transform: translateY(-4px); box-shadow: var(--mc-hard-shadow); }
.feature-list { list-style: none; padding: 0; }
.feature-list li { padding: .8rem 0; border-bottom: 1px dashed #1e293b; display: flex; align-items: center; gap: .8rem; }
.feature-list li i { color: var(--mc-accent); width: 20px; text-align: center; }
.feature-list li:last-child { border-bottom: none; }
.timeline-item { position: relative; padding-left: 2rem; margin-bottom: 2rem; }
.timeline-item::before { content: ''; position: absolute; left: 0; top: 0; width: 12px; height: 12px; background: var(--mc-main); border: 2px solid #1e293b; }
.timeline-item::after { content: ''; position: absolute; left: 5px; top: 12px; width: 2px; height: calc(100% - 12px); background: #1e293b; }
.timeline-item:last-child::after { display: none; }
.timeline-date { font-family: var(--mc-font-mono); color: var(--mc-accent); font-size: .85rem; }
.timeline-text { color: var(--mc-text); opacity: .85; margin-top: .3rem; }
.value-card { background: rgba(255,255,255,.02); border: var(--mc-border); padding: 1.5rem; height: 100%; transition: all .3s ease; }
.value-card:hover { box-shadow: var(--mc-hard-shadow); transform: translate(-2px, -2px); }
.value-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; color: var(--mc-main); }
.value-card p { font-size: .9rem; line-height: 1.7; color: var(--mc-text); opacity: .8; }
.nav-link.active { color: var(--mc-main) !important; font-weight: 700; }

/* --- 子页面追加 --- */
/* 总榜单页面专属样式 */
        .rank-hero {
            padding: 60px 0 30px;
            position: relative;
        }
.rank-hero h1::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--mc-main);
            border-radius: 2px;
        }
.rank-hero .subtitle {
            font-size: 1.1rem;
            color: rgba(226,232,240,.7);
            max-width: 640px;
            margin-top: 16px;
            line-height: 1.7;
        }
.rank-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 30px 0 20px;
            border-bottom: 2px solid #1e293b;
            padding-bottom: 16px;
        }
.rank-tab {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: .9rem;
            color: var(--mc-text);
            background: rgba(30,41,59,.5);
            border: 2px solid #1e293b;
            cursor: pointer;
            transition: all .2s;
            text-decoration: none;
        }
.rank-tab:hover, .rank-tab.active {
            background: var(--mc-main);
            color: #0f172a;
            border-color: var(--mc-main);
            box-shadow: 3px 3px 0 #000;
            transform: translate(-1px,-1px);
        }
.rank-section-title {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.rank-section-title .badge-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--mc-main);
            color: #0f172a;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            box-shadow: 3px 3px 0 #000;
        }
.rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            background: rgba(30,41,59,.4);
            border: 2px solid #1e293b;
            border-radius: 10px;
            margin-bottom: 12px;
            transition: all .2s;
        }
.rank-item:hover {
            background: rgba(30,41,59,.7);
            transform: translateX(4px);
            border-color: var(--mc-main);
        }
.rank-number {
            font-family: var(--mc-font-mono);
            font-size: 1.6rem;
            font-weight: 900;
            min-width: 48px;
            text-align: center;
            color: var(--mc-text);
            opacity: .6;
        }
.rank-number.top1 { color: #fbbf24; opacity: 1; }
.rank-number.top2 { color: #94a3b8; opacity: 1; }
.rank-number.top3 { color: #f59e0b; opacity: 1; }
.rank-item-cover {
            width: 56px;
            height: 56px;
            border-radius: 8px;
            object-fit: cover;
            border: 2px solid #1e293b;
            flex-shrink: 0;
        }
.rank-item-info {
            flex: 1;
            min-width: 0;
        }
.rank-item-title {
            font-weight: 700;
            font-size: 1rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
.rank-item-meta {
            font-size: .8rem;
            color: rgba(226,232,240,.6);
            margin-top: 2px;
        }
.rank-item-score {
            font-family: var(--mc-font-mono);
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--mc-main);
            flex-shrink: 0;
        }
.rank-item-trend {
            font-size: .8rem;
            color: #4ade80;
            flex-shrink: 0;
            min-width: 52px;
            text-align: right;
        }
.rank-item-trend.down { color: #f87171; }
.rank-item-trend.flat { color: #94a3b8; }
.rank-legend {
            display: flex;
            gap: 20px;
            font-size: .8rem;
            color: rgba(226,232,240,.5);
            margin-top: 20px;
            flex-wrap: wrap;
        }
.rank-legend span i {
            margin-right: 4px;
        }
.rank-note {
            margin-top: 30px;
            padding: 14px 16px;
            background: rgba(167,139,250,.1);
            border: 2px solid rgba(167,139,250,.3);
            border-radius: 10px;
            font-size: .85rem;
            color: rgba(226,232,240,.7);
            line-height: 1.6;
        }
.rank-note i {
            color: var(--mc-accent);
            margin-right: 6px;
        }
.rank-item { flex-wrap: wrap; }
.rank-item-score { margin-left: auto; }
.rank-item-trend { width: 100%; text-align: left; margin-left: 64px; }

/* --- 子页面追加 --- */
/* 标签分类页专用小修饰 —— 仅在站点样式基础上做增量，不破坏全局 */
    .tag-hero {
      border: var(--mc-border);
      box-shadow: var(--mc-hard-shadow);
      background: rgba(15, 23, 42, 0.7);
      backdrop-filter: blur(3px);
    }
.tag-cloud-block {
      border: 2px solid #1e293b;
      background: rgba(15, 23, 42, 0.6);
      box-shadow: 4px 4px 0 #000;
    }
.tag-pill {
      display: inline-block;
      padding: 0.35rem 1rem;
      margin: 0.2rem 0.3rem;
      background: #0f172a;
      border: 2px solid #1e293b;
      color: var(--mc-text);
      font-family: var(--mc-font-mono);
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      transition: 0.2s;
      text-decoration: none;
    }
.tag-pill:hover {
      background: var(--mc-main);
      color: #0f172a;
      border-color: var(--mc-main);
      box-shadow: 3px 3px 0 #000;
      transform: translate(-2px, -2px);
    }
.tag-pill i {
      margin-right: 5px;
      color: var(--mc-accent);
    }
.tag-pill:hover i {
      color: #0f172a;
    }
.tag-cat-title {
      border-bottom: 3px solid var(--mc-accent);
      display: inline-block;
      padding-bottom: 5px;
      margin-bottom: 15px;
      font-weight: 800;
      letter-spacing: 0.5px;
    }
/* 确保导航高亮 */
    .navbar .nav-link.active-tag {
      color: var(--mc-main) !important;
      font-weight: 800;
      text-decoration: underline wavy var(--mc-accent) 2px;
      text-underline-offset: 8px;
    }

/* --- 子页面追加 --- */
.feedback-hero { padding: 80px 0 40px; text-align: center; }
.feedback-hero h1 { font-size: 2.8rem; font-weight: 900; letter-spacing: -0.02em; margin-bottom: 1rem; }
.feedback-hero p { font-size: 1.1rem; max-width: 700px; margin: 0 auto; color: rgba(226,232,240,.8); }
.feedback-form-wrap { background: rgba(15,23,42,.8); border: var(--mc-border); box-shadow: var(--mc-hard-shadow); padding: 30px; margin-bottom: 50px; }
.feedback-form-wrap label { color: var(--mc-text); font-weight: 600; margin-bottom: 8px; display: block; }
.feedback-form-wrap input, .feedback-form-wrap textarea, .feedback-form-wrap select {
            width: 100%; padding: 12px 15px; margin-bottom: 20px;
            background: rgba(0,0,0,.3); border: 2px solid #1e293b; color: var(--mc-text);
            font-family: 'Inter', sans-serif; font-size: .95rem; border-radius: 0;
            transition: border-color .2s;
        }
.feedback-form-wrap input:focus, .feedback-form-wrap textarea:focus, .feedback-form-wrap select:focus {
            outline: none; border-color: var(--mc-main); background: rgba(0,0,0,.45);
        }
.feedback-form-wrap input::placeholder, .feedback-form-wrap textarea::placeholder { color: rgba(255,255,255,.4); }
.feedback-form-wrap select option { background: #0f172a; color: var(--mc-text); }
.btn-submit { background: var(--mc-main); color: #0f172a; border: 2px solid #000; padding: 12px 30px; font-weight: 800; font-size: 1rem; cursor: pointer; box-shadow: 4px 4px 0 #000; transition: all .15s; }
.btn-submit:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 #000; }
.message-card { background: rgba(15,23,42,.7); border: 2px solid #1e293b; padding: 20px; margin-bottom: 20px; transition: border-color .2s; }
.message-card:hover { border-color: var(--mc-main); }
.message-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; flex-wrap: wrap; gap: 10px; }
.message-user { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--mc-main); }
.message-user i { font-size: 1.4rem; }
.message-time { font-size: .8rem; color: rgba(226,232,240,.6); }
.message-tag { font-size: .75rem; padding: 3px 12px; background: rgba(167,139,250,.2); border: 1px solid var(--mc-accent); color: var(--mc-accent); font-weight: 600; }
.message-content { color: var(--mc-text); line-height: 1.7; }
.message-reply { background: rgba(56,189,248,.08); border-left: 3px solid var(--mc-main); padding: 10px 15px; margin-top: 12px; font-size: .9rem; color: rgba(226,232,240,.9); }
.message-reply strong { color: var(--mc-main); }
.section-title-feedback { font-size: 1.8rem; font-weight: 900; margin: 50px 0 25px; padding-bottom: 12px; border-bottom: 3px solid var(--mc-main); display: inline-block; }
.feedback-tips { background: rgba(56,189,248,.06); border: 2px dashed #1e293b; padding: 20px 25px; margin: 30px 0; }
.feedback-tips h4 { color: var(--mc-main); font-weight: 700; margin-bottom: 15px; font-size: 1.1rem; }
.feedback-tips li { margin-bottom: 8px; color: rgba(226,232,240,.85); }
.feedback-tips i { color: var(--mc-accent); margin-right: 8px; width: 18px; }
.pagination-feedback { display: flex; gap: 10px; justify-content: center; margin: 40px 0; }
.pagination-feedback a { padding: 8px 16px; border: 2px solid #1e293b; color: var(--mc-text); text-decoration: none; font-weight: 600; transition: all .2s; background: rgba(15,23,42,.5); }
.pagination-feedback a:hover, .pagination-feedback a.active { background: var(--mc-main); color: #0f172a; border-color: var(--mc-main); }
.emoji-row { display: flex; gap: 15px; margin-bottom: 20px; flex-wrap: wrap; }
.emoji-option { font-size: 1.6rem; cursor: pointer; padding: 5px 10px; border: 2px solid transparent; transition: all .2s; }
.emoji-option:hover, .emoji-option.selected { border-color: var(--mc-main); background: rgba(56,189,248,.15); }

/* --- 子页面追加 --- */
/* 页面专属小样式 */
        .signup-hero {
            position: relative;
            padding: 4rem 0 3rem;
            overflow: hidden;
        }
.signup-form-wrap {
            background: rgba(15, 23, 42, 0.7);
            border: var(--mc-border);
            box-shadow: var(--mc-hard-shadow);
            padding: 2.5rem;
            border-radius: 0;
            max-width: 560px;
            margin: 0 auto;
            backdrop-filter: blur(4px);
        }
.form-floating-custom label {
            color: var(--mc-text);
            font-size: 0.9rem;
            font-weight: 500;
        }
.form-control-mc {
            background: rgba(0, 0, 0, 0.35);
            border: 2px solid #1e293b;
            color: var(--mc-text);
            border-radius: 0;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
.form-control-mc:focus {
            background: rgba(0, 0, 0, 0.5);
            border-color: var(--mc-main);
            color: var(--mc-text);
            box-shadow: 0 0 0 0.2rem rgba(56, 189, 248, 0.15);
            outline: none;
        }
.form-control-mc::placeholder {
            color: rgba(226, 232, 240, 0.45);
        }
.form-check-mc {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--mc-text);
            cursor: pointer;
        }
.form-check-mc input[type="checkbox"] {
            width: 1.1em;
            height: 1.1em;
            accent-color: var(--mc-main);
        }
.benefit-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 1rem 0;
            border-bottom: 1px dashed rgba(30, 41, 59, 0.8);
        }
.benefit-item:last-child {
            border-bottom: none;
        }
.benefit-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            background: rgba(56, 189, 248, 0.1);
            border: 2px solid var(--mc-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--mc-main);
        }
.benefit-icon.purple {
            background: rgba(167, 139, 250, 0.1);
            border-color: var(--mc-accent);
            color: var(--mc-accent);
        }
.benefit-icon.green {
            background: rgba(74, 222, 128, 0.1);
            border-color: #4ade80;
            color: #4ade80;
        }
.btn-register {
            background: var(--mc-main);
            color: #0f172a;
            font-weight: 700;
            border: none;
            padding: 0.85rem 1.5rem;
            font-size: 1.1rem;
            width: 100%;
            box-shadow: 4px 4px 0 #0f172a;
            transition: all 0.15s ease;
        }
.btn-register:hover {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0 #0f172a;
            background: #7dd3fc;
            color: #0f172a;
        }
.btn-register:active {
            transform: translate(4px, 4px);
            box-shadow: 0 0 0 #0f172a;
        }
.divider-mc {
            display: flex;
            align-items: center;
            gap: 1rem;
            color: rgba(226, 232, 240, 0.5);
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin: 1.5rem 0;
        }
.divider-mc::before,
        .divider-mc::after {
            content: "";
            flex: 1;
            height: 1px;
            background: #1e293b;
        }
.signup-note {
            background: rgba(167, 139, 250, 0.08);
            border-left: 4px solid var(--mc-accent);
            padding: 1rem 1.25rem;
            margin-top: 1.5rem;
            font-size: 0.9rem;
            color: var(--mc-text);
        }
.signup-note i {
            color: var(--mc-accent);
            margin-right: 0.5rem;
        }
.perk-card {
            border: var(--mc-border);
            background: rgba(15, 23, 42, 0.5);
            padding: 1.5rem;
            height: 100%;
            transition: box-shadow 0.2s, transform 0.2s;
        }
.perk-card:hover {
            box-shadow: var(--mc-hard-shadow);
            transform: translate(-2px, -2px);
        }
.perk-card .perk-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.75rem;
            color: var(--mc-main);
        }
.perk-card .perk-title i {
            margin-right: 0.5rem;
        }
.perk-card p {
            font-size: 0.92rem;
            color: var(--mc-text);
            opacity: 0.85;
            margin-bottom: 0;
        }
.steps-flow {
            position: relative;
            padding-left: 2rem;
        }
.steps-flow::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(to bottom, var(--mc-main), var(--mc-accent));
            opacity: 0.4;
        }
.step-flow-item {
            position: relative;
            padding-bottom: 1.75rem;
        }
.step-flow-item::before {
            content: "";
            position: absolute;
            left: -2rem;
            top: 0.2rem;
            width: 18px;
            height: 18px;
            background: var(--mc-bg);
            border: 2px solid var(--mc-main);
            border-radius: 50%;
            z-index: 1;
        }
.step-flow-item:last-child {
            padding-bottom: 0;
        }
.step-flow-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.35rem;
            color: var(--mc-text);
        }
.step-flow-item p {
            font-size: 0.9rem;
            color: var(--mc-text);
            opacity: 0.8;
            margin-bottom: 0;
        }
.social-register {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
.social-btn {
            flex: 1;
            min-width: 130px;
            background: rgba(15, 23, 42, 0.6);
            border: 2px solid #1e293b;
            color: var(--mc-text);
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            transition: all 0.2s;
            text-decoration: none;
        }
.social-btn:hover {
            border-color: var(--mc-main);
            color: var(--mc-main);
            background: rgba(56, 189, 248, 0.05);
        }
.social-btn i {
            font-size: 1.1rem;
        }
.login-link {
            color: var(--mc-main);
            text-decoration: none;
            font-weight: 500;
        }
.login-link:hover {
            color: var(--mc-accent);
            text-decoration: underline;
        }

/* --- 子页面追加 --- */
/* 本页专属样式——沿用站点配色变量 */
        .browse-hero { background: linear-gradient(135deg, rgba(56,189,248,.15) 0%, rgba(167,139,250,.1) 100%); border: var(--mc-border); box-shadow: var(--mc-hard-shadow); padding: 3rem 2rem; margin-bottom: 3rem; }
.browse-hero h1 { font-size: 2.6rem; font-weight: 900; }
.browse-hero p { font-size: 1.1rem; max-width: 700px; }
.browse-section { margin-bottom: 3.5rem; }
.browse-section h2 { font-weight: 800; margin-bottom: 1.2rem; }
.step-card { background: rgba(15,23,42,.8); border: var(--mc-border); padding: 1.5rem; margin-bottom: 1rem; transition: all .3s; }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--mc-hard-shadow); }
.step-num-big { font-family: var(--mc-font-mono); font-size: 2.5rem; font-weight: 900; color: var(--mc-main); }
.feature-icon { font-size: 2rem; color: var(--mc-accent); margin-bottom: .5rem; }
.tip-box { background: rgba(167,139,250,.1); border-left: 4px solid var(--mc-accent); padding: 1rem 1.5rem; margin-top: 1rem; }
.genre-chip { display: inline-block; background: rgba(56,189,248,.15); border: var(--mc-border); padding: .3rem 1rem; margin: .2rem; font-size: .9rem; font-weight: 600; }
.browse-active { color: var(--mc-main) !important; font-weight: 700; }

/* --- 子页面追加 --- */
/* 本页专属少量样式——隐私政策正文排版 */
        .privacy-section {
            margin-bottom: 3rem;
        }
.privacy-section h2 {
            font-family: var(--mc-font-mono);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--mc-main);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: var(--mc-border);
            position: relative;
            display: inline-block;
        }
.privacy-section h2::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 40%;
            height: 4px;
            background: var(--mc-accent);
            border-radius: 2px;
        }
.privacy-section p {
            line-height: 1.9;
            color: var(--mc-text);
            opacity: 0.9;
            margin-bottom: 1rem;
        }
.privacy-section ul {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.privacy-section ul li {
            margin-bottom: 0.6rem;
            color: var(--mc-text);
            opacity: 0.85;
            line-height: 1.7;
        }
.privacy-box {
            background: rgba(56, 189, 248, 0.06);
            border: var(--mc-border);
            border-radius: 12px;
            padding: 1.8rem;
            margin: 2rem 0;
            box-shadow: var(--mc-hard-shadow);
        }
.privacy-box p {
            margin-bottom: 0;
            font-weight: 500;
        }
.privacy-highlight {
            background: rgba(167, 139, 250, 0.1);
            border-left: 4px solid var(--mc-accent);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
.privacy-highlight p {
            margin-bottom: 0;
            font-weight: 500;
        }
.privacy-date {
            font-family: var(--mc-font-mono);
            color: var(--mc-accent);
            font-size: 0.9rem;
            display: block;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 2px dashed #1e293b;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.form-label { color:#e2e8f0 !important; }