:root {
  --dm-primary: #9f1239;
  --dm-accent: #e11d48;
  --dm-bg: #fafafa;
  --dm-text: #3f0a1a;
  --dm-border: #3f0a1a;
  --dm-card-bg: #ffffff;
  --dm-shadow: 6px 6px 0px 0px rgba(63, 10, 26, 0.9);
}

* {
  border-radius: 0 !important;
  box-sizing: border-box;
}

body {
  background-color: var(--dm-bg);
  color: var(--dm-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-image: radial-gradient(circle, rgba(159, 18, 57, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--dm-text);
}

a {
  color: var(--dm-primary);
  text-decoration: none;
}

a:hover {
  color: var(--dm-accent);
}

/* 导航栏 */
.navbar-dm {
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--dm-border);
  transition: all 0.3s ease;
  z-index: 999;
}

.navbar-dm.scrolled {
  background: rgba(250, 250, 250, 0.72);
  box-shadow: 0 4px 20px rgba(63, 10, 26, 0.08);
}

.navbar-brand {
  font-weight: 900;
  font-size: 1.8rem;
  color: var(--dm-primary) !important;
  letter-spacing: -0.03em;
}

.nav-link {
  font-weight: 600;
  color: var(--dm-text) !important;
  margin: 0 0.5rem;
  padding: 0.5rem 0.75rem !important;
  border: 2px solid transparent;
  transition: all 0.2s;
}

.nav-link:hover {
  border-color: var(--dm-border);
  background: #fff;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 0 var(--dm-border);
}

/* Hero */
.hero-section {
  padding: 120px 0 80px;
  border-bottom: 3px solid var(--dm-border);
  background: linear-gradient(180deg, #fff 0%, var(--dm-bg) 100%);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.stat-item {
  border-left: 4px solid var(--dm-primary);
  padding-left: 1rem;
}

.stat-number {
  font-family: 'Courier New', monospace;
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--dm-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--dm-text);
  opacity: 0.75;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.7;
  opacity: 0.85;
  max-width: 620px;
  font-weight: 400;
}

.btn-dm {
  background: var(--dm-primary);
  color: #fff !important;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--dm-border);
  box-shadow: 4px 4px 0 0 var(--dm-border);
  transition: all 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.9rem;
  display: inline-block;
}

.btn-dm:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 0 var(--dm-border);
  background: var(--dm-accent);
}

/* 通用区块 */
.section-padding {
  padding: 80px 0;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 2.5rem;
  position: relative;
  display: inline-block;
  border-bottom: 4px solid var(--dm-primary);
  padding-bottom: 0.5rem;
}

.section-tag {
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--dm-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.5rem;
}

/* 编号清单 */
.steps-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
}

.steps-list li {
  counter-increment: step-counter;
  display: flex;
  gap: 1.5rem;
  padding: 1.75rem 1rem;
  border-bottom: 2px solid var(--dm-border);
  align-items: flex-start;
  transition: background 0.2s;
}

.steps-list li:first-child {
  border-top: 2px solid var(--dm-border);
}

.steps-list li::before {
  content: counter(step-counter, decimal-leading-zero);
  font-family: 'Courier New', monospace;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--dm-primary);
  min-width: 3rem;
  line-height: 1.2;
}

.step-content h5 {
  font-weight: 800;
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

.step-content p {
  margin: 0;
  opacity: 0.75;
  line-height: 1.6;
  font-size: 0.95rem;
}

/* 对比表格 */
.compare-table-wrap {
  border: 3px solid var(--dm-border);
  box-shadow: var(--dm-shadow);
  background: var(--dm-card-bg);
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.compare-table th {
  background: var(--dm-primary);
  color: #fff;
  font-weight: 800;
  padding: 1rem 1.25rem;
  border: 2px solid var(--dm-border);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.compare-table td {
  padding: 1rem 1.25rem;
  border: 2px solid var(--dm-border);
  background: #fff;
  font-size: 0.95rem;
  line-height: 1.6;
  vertical-align: top;
}

.compare-table td:first-child {
  font-weight: 800;
  background: #faf0f3;
  min-width: 120px;
}

.compare-table .fa-check {
  color: var(--dm-primary);
  font-weight: 900;
}

.compare-table .fa-xmark {
  color: #999;
}

/* 特色网格 */
.feature-card {
  background: var(--dm-card-bg);
  border: 3px solid var(--dm-border);
  padding: 1.5rem;
  height: 100%;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  box-shadow: 4px 4px 0 0 rgba(63, 10, 26, 0.3);
}

.feature-card:hover {
  transform: scale(1.02);
  border-color: var(--dm-accent);
  box-shadow: 6px 6px 0 0 var(--dm-border);
}

.feature-icon {
  font-size: 2.2rem;
  color: var(--dm-primary);
  margin-bottom: 1rem;
  display: block;
}

.feature-card h4 {
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  opacity: 0.75;
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

/* 长文 */
.longform-section {
  background: #fff;
  border-top: 3px solid var(--dm-border);
  border-bottom: 3px solid var(--dm-border);
}

.longform-content {
  max-width: 760px;
}

.longform-content h3 {
  font-weight: 900;
  font-size: 1.7rem;
  margin: 2rem 0 1rem;
}

.longform-content p {
  line-height: 1.9;
  font-size: 1.02rem;
  margin-bottom: 1.25rem;
  opacity: 0.88;
}

.longform-content blockquote {
  border-left: 4px solid var(--dm-primary);
  padding-left: 1.25rem;
  font-style: italic;
  font-weight: 500;
  margin: 2rem 0;
  background: #faf5f7;
  padding: 1.25rem;
}

/* FAQ */
.faq-item {
  border: 2px solid var(--dm-border);
  margin-bottom: 0.75rem;
  background: #fff;
  transition: box-shadow 0.2s;
}

.faq-item.active {
  box-shadow: 4px 4px 0 0 var(--dm-border);
}

.faq-question {
  padding: 1.1rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 1.02rem;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--dm-text);
}

.faq-question .fa-solid {
  transition: transform 0.3s;
  color: var(--dm-primary);
  font-size: 1.1rem;
}

.faq-item.active .fa-solid {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 1.25rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.1rem;
}

.faq-answer p {
  margin: 0;
  line-height: 1.7;
  opacity: 0.8;
  font-size: 0.95rem;
}

/* CTA */
.cta-section {
  background: var(--dm-primary);
  color: #fff;
  padding: 80px 0;
  border-top: 3px solid var(--dm-border);
  position: relative;
  overflow: hidden;
}

.cta-section h2 {
  color: #fff;
}

.cta-section .section-tag {
  color: #fca5b5;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

.btn-dm-light {
  background: #fff;
  color: var(--dm-primary) !important;
  border: 2px solid var(--dm-text);
  box-shadow: 4px 4px 0 0 var(--dm-text);
  font-weight: 800;
  padding: 0.85rem 2rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.9rem;
  transition: all 0.15s;
  display: inline-block;
}

.btn-dm-light:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 0 var(--dm-text);
  background: #fdf0f3;
}

/* 友情链接 */
.friend-links {
  background: #f5f0f2;
  border-top: 3px solid var(--dm-border);
  padding: 40px 0;
}

.friend-links .section-title {
  font-size: 1.3rem;
  margin-bottom: 1.25rem;
  border-bottom: 3px solid var(--dm-primary);
  padding-bottom: 0.4rem;
}

.friend-links p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 2;
  word-break: break-all;
}

/* 页脚 */
footer {
  background: var(--dm-text);
  color: #f5e5ea;
  padding: 40px 0 20px;
  border-top: 4px solid var(--dm-primary);
}

footer a {
  color: #f5e5ea;
  text-decoration: underline;
  text-underline-offset: 3px;
}

footer a:hover {
  color: var(--dm-accent);
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff !important;
  text-decoration: none !important;
}

/* 进入视口动画 */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .hero-section {
    padding: 90px 0 50px;
  }
  
  .section-padding {
    padding: 55px 0;
  }
  
  .hero-stats {
    gap: 1.25rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .steps-list li {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .steps-list li::before {
    font-size: 1.3rem;
  }
}

/* --- 子页面追加 --- */
/* 关于我们页面专属微调 */
        .about-hero {
            background: linear-gradient(135deg, var(--dm-primary) 0%, var(--dm-accent) 100%);
            color: #fff;
            padding: 4rem 0;
            margin-bottom: 2rem;
        }
.about-hero .hero-title {
            color: #fff;
        }
.about-hero .hero-subtitle {
            color: rgba(255,255,255,.9);
        }
.about-section {
            padding: 3rem 0;
        }
.about-section .section-tag {
            display: inline-block;
            background: var(--dm-primary);
            color: #fff;
            padding: .25rem 1rem;
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: .05em;
            text-transform: uppercase;
            margin-bottom: 1rem;
        }
.about-section .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dm-text);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: .5rem;
        }
.about-section .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--dm-accent);
        }
.about-text {
            color: var(--dm-text);
            font-size: 1.05rem;
            line-height: 1.8;
            opacity: .9;
        }
.about-text strong {
            color: var(--dm-primary);
            font-weight: 700;
        }
.about-card {
            background: var(--dm-card-bg);
            border: 2px solid var(--dm-border);
            box-shadow: var(--dm-shadow);
            padding: 1.5rem;
            height: 100%;
            transition: transform .2s ease, box-shadow .2s ease;
        }
.about-card:hover {
            transform: translateY(-4px);
            box-shadow: 8px 8px 0px 0px rgba(63, 10, 26, 0.9);
        }
.about-card .feature-icon {
            font-size: 2rem;
            color: var(--dm-accent);
            margin-bottom: 1rem;
        }
.about-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dm-text);
            margin-bottom: .75rem;
        }
.about-card p {
            color: var(--dm-text);
            font-size: .95rem;
            line-height: 1.6;
            opacity: .85;
        }
.timeline-item {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 2rem;
            border-left: 3px solid var(--dm-accent);
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 0;
            width: 13px;
            height: 13px;
            background: var(--dm-primary);
            border: 3px solid var(--dm-accent);
            border-radius: 50%;
        }
.timeline-item .year {
            font-weight: 800;
            color: var(--dm-primary);
            font-size: 1.1rem;
        }
.timeline-item .desc {
            color: var(--dm-text);
            opacity: .85;
            line-height: 1.6;
            margin-top: .5rem;
        }
.about-hero {
                padding: 3rem 0;
            }
.about-section .section-title {
                font-size: 1.6rem;
            }
.about-card {
                margin-bottom: 1.5rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .disclaimer-section {
            max-width: 860px;
            margin: 0 auto;
        }
.disclaimer-block {
            background: var(--dm-card-bg);
            border: 2px solid var(--dm-border);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--dm-shadow);
        }
.disclaimer-block h2 {
            color: var(--dm-primary);
            font-weight: 800;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px dashed var(--dm-primary);
        }
.disclaimer-block p, .disclaimer-block li {
            color: var(--dm-text);
            line-height: 1.8;
            font-size: 0.95rem;
        }
.disclaimer-block ul, .disclaimer-block ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.disclaimer-block li {
            margin-bottom: 0.5rem;
        }
.highlight-box {
            background: rgba(159, 18, 57, 0.08);
            border-left: 4px solid var(--dm-accent);
            padding: 1rem 1.2rem;
            border-radius: 0 8px 8px 0;
            margin: 1.2rem 0;
        }
.highlight-box p {
            margin-bottom: 0;
            font-weight: 500;
        }
.contact-email {
            color: var(--dm-primary);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
.back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 2rem;
        }
.disclaimer-block {
                padding: 1.2rem;
            }
.disclaimer-block h2 {
                font-size: 1.2rem;
            }

/* --- 子页面追加 --- */
.privacy-wrap {
            max-width: 900px;
            margin: 0 auto;
        }
.privacy-section {
            background: var(--dm-card-bg);
            border: 2px solid var(--dm-border);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--dm-shadow);
        }
.privacy-section h2 {
            color: var(--dm-primary);
            font-weight: 800;
            font-size: 1.6rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.6rem;
            border-bottom: 3px solid var(--dm-accent);
            display: inline-block;
        }
.privacy-section h3 {
            color: var(--dm-text);
            font-weight: 700;
            font-size: 1.2rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
.privacy-section p, .privacy-section li {
            color: var(--dm-text);
            line-height: 1.8;
            font-size: 0.95rem;
            opacity: 0.9;
        }
.privacy-section ul, .privacy-section ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.privacy-section li {
            margin-bottom: 0.5rem;
        }
.privacy-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--dm-accent);
            color: #fff;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }
.privacy-updated {
            text-align: center;
            color: var(--dm-text);
            opacity: 0.7;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding: 0.8rem;
            background: rgba(225, 29, 72, 0.08);
            border-radius: 8px;
        }
.contact-box {
            background: rgba(159, 18, 57, 0.05);
            border: 2px dashed var(--dm-accent);
            border-radius: 10px;
            padding: 1.5rem;
            margin-top: 1.5rem;
        }
.contact-box a {
            color: var(--dm-accent);
            font-weight: 600;
            text-decoration: underline;
        }