*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --paper: #F4EFE7;
  --paper-deep: #EAE2D3;
  --surface: #FDFBF6;
  --ink: #20242A;
  --muted: #6E7278;
  --red: #E63B2E;
  --red-deep: #C22E25;
  --yellow: #F4B400;
  --line: rgba(32, 36, 42, 0.14);
  --shadow: rgba(32, 36, 42, 0.16);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--yellow);
  color: var(--ink);
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

ul,
ol {
  list-style: none;
}

button,
input {
  font: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 96px 0;
}

.section:nth-child(even) {
  background: var(--paper-deep);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(244, 239, 231, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 0 rgba(244, 180, 0, 0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transform: rotate(-4deg);
  box-shadow: 3px 3px 0 var(--ink);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav li {
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  position: relative;
  transition: color 0.2s;
}

.main-nav a:hover {
  color: var(--red);
}

.nav-cta {
  padding: 10px 22px;
  background: var(--red);
  color: #fff !important;
  font-weight: 800;
  border-radius: 0;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 0.15s, box-shadow 0.15s;
}

.nav-cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
  color: #fff !important;
}

.menu-toggle {
  display: none;
}

.hero {
  min-height: 85vh;
  padding: 160px 0 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 560px;
  height: 560px;
  right: -140px;
  top: -80px;
  border: 64px solid rgba(230, 59, 46, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--ink) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.08;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 800px;
  position: relative;
}

.hero-content::after {
  content: '24/7';
  position: absolute;
  top: -10px;
  right: -10px;
  border: 4px solid var(--red);
  color: var(--red);
  background: var(--surface);
  padding: 6px 14px;
  font-size: 1.2rem;
  font-weight: 900;
  transform: rotate(6deg);
  letter-spacing: 3px;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--yellow);
  color: var(--ink);
  border: 2px solid var(--ink);
  padding: 6px 18px;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  transform: rotate(-1deg);
  box-shadow: 4px 4px 0 var(--ink);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.2rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.hero-image {
  border-radius: 0;
  overflow: hidden;
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--red);
}

.hero-image img {
  width: 100%;
  height: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
  background: var(--surface);
  border-radius: 0;
  box-shadow: 4px 4px 0 var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn-primary {
  background: var(--red);
  color: #fff;
}

.btn-primary:hover {
  background: var(--red-deep);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--ink);
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: var(--red);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 3px;
  background: var(--red);
  vertical-align: middle;
  margin-right: 10px;
}

.section-title {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 14px;
  width: fit-content;
}

.section-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  background: var(--red);
  margin-top: 10px;
}

.section-desc {
  max-width: 640px;
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 44px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.category-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 30px;
  position: relative;
  box-shadow: 6px 6px 0 var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.category-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  border-top: 20px solid var(--red);
  border-right: 20px solid transparent;
}

.category-card:hover {
  transform: translate(-3px, -3px) rotate(-0.3deg);
  box-shadow: 10px 10px 0 var(--red);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
  background: var(--yellow);
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-3deg);
}

.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--red);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.card-link::after {
  content: '→';
  margin-left: 4px;
}

.card-link:hover {
  color: var(--ink);
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.feature-image {
  border-radius: 0;
  overflow: hidden;
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--yellow);
}

.feature-image img {
  width: 100%;
  height: auto;
}

.feature-text {}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  border-bottom: 1px dashed var(--line);
}

.feature-list li::before {
  content: '✔';
  font-weight: 900;
  color: var(--red);
  font-size: 1.1rem;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: left;
}

.stat-item {
  padding: 24px 4px;
  border-radius: 0;
  border-top: 3px solid var(--ink);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--muted);
  margin-top: 8px;
  letter-spacing: 1px;
}

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0;
  overflow: hidden;
  box-shadow: 4px 4px 0 var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.content-wall-item:hover {
  transform: translateY(-5px) rotate(0.4deg);
  box-shadow: 8px 8px 0 var(--red);
}

.content-wall-item img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.content-wall-body {
  padding: 24px;
}

.content-wall-body h3,
.content-wall-body h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.content-wall-body p {
  font-size: 0.92rem;
  color: var(--muted);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s;
}

.faq-item.open {
  border-left: 6px solid var(--red);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 1.05rem;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--red);
  line-height: 1;
}

.faq-item.open .faq-question::after {
  content: '−';
}

.faq-item .faq-answer {
  padding: 16px 24px 20px;
  color: var(--muted);
  display: none;
  border-top: 1px dashed var(--line);
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFade 0.25s ease;
}

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.cta-banner {
  padding: 64px 32px;
  text-align: center;
  background: var(--red);
  border-radius: 0;
  position: relative;
  overflow: hidden;
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  color: #fff;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.04) 0 20px, transparent 20px 40px);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 24px;
}

.cta-banner .btn-primary {
  background: var(--yellow);
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
}

.cta-banner .btn-primary:hover {
  background: #FFC61A;
}

.cta-banner > * {
  position: relative;
  z-index: 1;
}

.site-footer {
  padding: 72px 0 32px;
  background: var(--paper-deep);
  border-top: 4px solid var(--ink);
}

.site-footer .container {}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  max-width: 360px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.footer-col a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--red);
}

.footer-bottom {
  border-top: 2px solid var(--ink);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.text-accent {
  color: var(--red);
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  color: var(--muted);
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 2px solid var(--ink);
    border-radius: 0;
    color: var(--ink);
    padding: 10px 14px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 3px 3px 0 var(--ink);
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 72px;
    left: 16px;
    right: 16px;
    background: var(--paper);
    padding: 24px;
    gap: 20px;
    border: 2px solid var(--ink);
    box-shadow: 6px 6px 0 var(--red);
  }

  .hero {
    padding-top: 130px;
  }

  .hero-content::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn {
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.6rem;
  }

  .section {
    padding: 64px 0;
  }
}