/* =========================================================
   MANTONG DESIGN SYSTEM — “同路同心，彩虹无界”
   Awwwards-Inspired · Warm Editorial Gradient Style
   ========================================================= */

/* ---------- 基础重置 ---------- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background-color:#FFF9F4;
  color:#3D3435;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* 自定义滚动条 */
::-webkit-scrollbar { width:10px; }
::-webkit-scrollbar-track { background:#FFF9F4; }
::-webkit-scrollbar-thumb {
  background:linear-gradient(180deg,#FFB4A2,#B8A8E8,#6B9D7A);
  border-radius:10px;
}
::selection { background:#FFB4A2; color:#3D3435; }

/* ---------- 核心布局 ---------- */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

.section {
  padding:90px 0;
  position:relative;
}
.section:nth-child(even) { background:#FDEFEA; }

/* ---------- 导航 ---------- */
.site-header {
  position:fixed;
  top:0; left:0;
  width:100%;
  z-index:1000;
  background:rgba(255,249,244,0.92);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,99,72,0.08);
  box-shadow:0 2px 24px rgba(255,99,72,0.04);
}

/* 顶部渐变色带 */
.site-header::before {
  content:'';
  display:block;
  height:3px;
  background:linear-gradient(90deg,#FF6348,#E5A755,#B8A8E8,#6B9D7A);
}

.header-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.logo {
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.25rem;
  letter-spacing:-0.5px;
  text-decoration:none;
  color:#3D3435;
}

.logo-icon {
  width:40px;
  height:40px;
  border-radius:14px 6px 14px 6px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.1rem;
  color:#fff;
  background:linear-gradient(135deg,#FF6348 0%,#E5A755 40%,#B8A8E8 80%,#6B9D7A 100%);
  box-shadow:0 4px 12px rgba(255,99,72,0.28);
}

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

.main-nav a {
  text-decoration:none;
  font-size:0.92rem;
  font-weight:500;
  color:#4A3B3D;
  padding:4px 0;
  position:relative;
  transition:color 0.25s ease;
}

.main-nav a::after {
  content:'';
  position:absolute;
  bottom:0; left:0;
  width:0; height:2px;
  border-radius:2px;
  background:#FF6348;
  transition:width 0.3s cubic-bezier(0.2,0.8,0.4,1);
}

.main-nav a:hover {
  color:#FF6348;
}
.main-nav a:hover::after { width:100%; }

.nav-cta {
  padding:9px 22px;
  border-radius:50px;
  color:#fff!important;
  font-weight:600;
  background:#FF6348;
  box-shadow:0 4px 14px rgba(255,99,72,0.25);
  transition:transform 0.25s ease, box-shadow 0.25s ease;
}
.nav-cta::after { display:none; }
.nav-cta:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(255,99,72,0.32);
}

.menu-toggle {
  display:none;
  width:42px;
  height:42px;
  border:none;
  border-radius:14px;
  background:#fff;
  color:#FF6348;
  font-size:1.2rem;
  cursor:pointer;
  box-shadow:0 2px 10px rgba(61,52,53,0.08);
  align-items:center;
  justify-content:center;
}

/* ---------- Hero 英雄区 ---------- */
.hero {
  min-height:75vh;
  display:flex;
  align-items:center;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(ellipse at 80% 25%, rgba(255,180,162,0.28) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 90%, rgba(107,157,122,0.15) 0%, transparent 55%),
    #FFF9F4;
}

.hero::before {
  content:'';
  position:absolute;
  top:15%;
  right:-80px;
  width:360px;
  height:360px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,180,162,0.45) 0%, transparent 70%);
  z-index:0;
}

.hero::after {
  content:'';
  position:absolute;
  bottom:-60px;
  left:-40px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(184,168,232,0.22) 0%, transparent 70%);
  z-index:0;
}

.hero .container {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:64px;
  position:relative;
  z-index:2;
}

.hero-content { max-width:640px; }

.hero-eyebrow {
  display:inline-block;
  background:#E8F0E6;
  color:#5C8F68;
  font-size:0.8rem;
  font-weight:700;
  letter-spacing:2px;
  padding:6px 18px;
  border-radius:50px;
  margin-bottom:20px;
  box-shadow:0 2px 8px rgba(107,157,122,0.12);
}

.hero h1 {
  font-size:clamp(2.5rem, 5.2vw, 4rem);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-2px;
  margin-bottom:20px;
  background:linear-gradient(120deg,#FF6348 0%,#C65D8A 45%,#6B9D7A 100%);
  background-size:200% auto;
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:heroGradient 8s ease infinite;
}

@keyframes heroGradient {
  0%   { background-position:0% 50%; }
  50%  { background-position:100% 50%; }
  100% { background-position:0% 50%; }
}

.hero p {
  font-size:1.1rem;
  line-height:1.8;
  opacity:0.65;
  max-width:520px;
  margin-bottom:36px;
}

.hero-buttons {
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.hero-image {
  position:relative;
  flex-shrink:0;
  border-radius:200px 200px 16px 16px;
  overflow:hidden;
  box-shadow:
    0 32px 60px rgba(255,99,72,0.18),
    0 0 0 6px rgba(255,255,255,0.7),
    0 40px 80px rgba(184,168,232,0.15);
  animation:float 6s ease-in-out infinite;
  max-width:420px;
}

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

@keyframes float {
  0%,100% { transform:translateY(0) rotate(0deg); }
  50%     { transform:translateY(-14px) rotate(1.2deg); }
}

/* ---------- 按钮 ---------- */
.btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 30px;
  border-radius:50px;
  font-weight:600;
  font-size:0.95rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-primary {
  color:#fff;
  background:#FF6348;
  box-shadow:0 6px 18px rgba(255,99,72,0.28);
}

.btn-primary:hover {
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(255,99,72,0.36);
}

.btn-outline {
  background:transparent;
  border:2px solid #FF6348;
  color:#FF6348;
}

.btn-outline:hover {
  background:rgba(255,99,72,0.08);
  transform:translateY(-2px);
}

/* ---------- 标签 / 标题 ---------- */
.section-label {
  display:inline-block;
  font-size:0.78rem;
  font-weight:700;
  letter-spacing:4px;
  text-transform:uppercase;
  color:#FF6348;
  background:rgba(255,99,72,0.08);
  padding:7px 18px;
  border-radius:50px;
  margin-bottom:16px;
}

.section-title {
  font-size:clamp(1.8rem, 3vw, 2.5rem);
  font-weight:800;
  letter-spacing:-1px;
  line-height:1.3;
  margin-bottom:14px;
  color:#3D3435;
}

.section-desc {
  max-width:600px;
  font-size:1rem;
  line-height:1.8;
  opacity:0.7;
  margin-bottom:44px;
}

/* ---------- 卡片网格 ---------- */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(260px, 1fr));
  gap:24px;
}

.category-card {
  background:#FFFFFF;
  border:none;
  border-radius:28px 8px 28px 8px;
  padding:32px 28px;
  box-shadow:0 4px 20px rgba(61,52,53,0.06);
  transition:transform 0.35s cubic-bezier(0.2,0.8,0.4,1), box-shadow 0.35s ease;
  position:relative;
  overflow:hidden;
}

.category-card::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg,#FF6348,#E5A755,#B8A8E8,#6B9D7A);
  opacity:0;
  transition:opacity 0.3s ease;
}

.category-card:hover {
  transform:translateY(-8px) rotateZ(-1.2deg) scale(1.01);
  box-shadow:0 18px 44px rgba(255,99,72,0.12);
}

.category-card:hover::before { opacity:1; }

.card-icon {
  width:52px;
  height:52px;
  border-radius:18px 6px 18px 6px;
  background:linear-gradient(135deg,#FFB4A2,#FFDDD6);
  color:#FF6348;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.4rem;
  margin-bottom:20px;
}

.card-link {
  font-weight:700;
  font-size:0.85rem;
  text-decoration:none;
  color:#FF6348;
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:gap 0.2s ease;
}

.card-link:hover { gap:8px; }

/* ---------- 特性块 ---------- */
.feature-block {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}

.feature-image {
  border-radius:160px 160px 16px 16px;
  overflow:hidden;
  box-shadow:0 24px 50px rgba(107,157,122,0.18);
  position:relative;
}

.feature-image img {
  width:100%;
  height:auto;
  display:block;
  transition:transform 0.6s ease;
}

.feature-image:hover img { transform:scale(1.03); }

.feature-text { position:relative; }

.feature-list {
  list-style:none;
  margin-top:12px;
}

.feature-list li {
  padding:8px 0;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:0.98rem;
  color:rgba(61,52,53,0.8);
}

.feature-list li::before {
  content:'✓';
  font-weight:800;
  color:#6B9D7A;
  background:#E4EFE5;
  width:24px;
  height:24px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:0.75rem;
  flex-shrink:0;
}

/* ---------- 数据条 ---------- */
.stats-bar {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}

.stat-item {
  padding:32px 20px;
  border:none;
  border-radius:32px 10px 32px 10px;
  color:#fff;
  box-shadow:0 12px 28px rgba(61,52,53,0.12);
  position:relative;
  overflow:hidden;
}

.stat-item:nth-child(1) {
  background:linear-gradient(135deg,#FF6348,#FF8A70);
  box-shadow:0 12px 28px rgba(255,99,72,0.28);
}

.stat-item:nth-child(2) {
  background:linear-gradient(135deg,#E5A755,#F3C273);
  box-shadow:0 12px 28px rgba(229,167,85,0.25);
}

.stat-item:nth-child(3) {
  background:linear-gradient(135deg,#B8A8E8,#D3C8F2);
  box-shadow:0 12px 28px rgba(184,168,232,0.25);
}

.stat-item:nth-child(4) {
  background:linear-gradient(135deg,#6B9D7A,#8FB89E);
  box-shadow:0 12px 28px rgba(107,157,122,0.25);
}

.stat-number {
  font-size:2.6rem;
  font-weight:800;
  letter-spacing:-1px;
}

.stat-label {
  font-size:0.85rem;
  opacity:0.9;
  margin-top:6px;
  font-weight:500;
  color:rgba(255,255,255,0.95);
}

/* ---------- 内容墙 ---------- */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));
  gap:26px;
}

.content-wall-item {
  border:none;
  border-radius:28px 8px 28px 8px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 4px 20px rgba(61,52,53,0.06);
  transition:transform 0.35s ease, box-shadow 0.35s ease;
}

.content-wall-item:hover {
  transform:translateY(-8px);
  box-shadow:0 20px 44px rgba(255,99,72,0.14);
}

.content-wall-item img {
  width:100%;
  height:200px;
  object-fit:cover;
  display:block;
  transition:transform 0.5s cubic-bezier(0.2,0.8,0.4,1);
}

.content-wall-item:hover img { transform:scale(1.06); }

.content-wall-body {
  padding:22px 22px 24px;
}

.content-wall-body p {
  font-size:0.9rem;
  opacity:0.65;
  margin-top:4px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width:800px;
  margin:0 auto;
}

.faq-item {
  background:#fff;
  border:1.5px solid #F0E4E0;
  border-radius:20px 6px 20px 6px;
  margin-bottom:12px;
  overflow:hidden;
  cursor:pointer;
  transition:border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item.open {
  border-color:#FF6348;
  box-shadow:0 8px 24px rgba(255,99,72,0.1);
}

.faq-item .faq-question {
  padding:18px 24px;
  font-weight:600;
  font-size:1rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:#3D3435;
  transition:color 0.3s ease;
}

.faq-item.open .faq-question { color:#FF6348; }

.faq-item .faq-question::after {
  content:'+';
  font-size:1.4rem;
  font-weight:300;
  color:#FF6348;
  transition:transform 0.35s ease;
}

.faq-item.open .faq-question::after { transform:rotate(45deg); }

.faq-item .faq-answer {
  padding:0 24px 20px;
  display:none;
  font-size:0.95rem;
  opacity:0.75;
  line-height:1.8;
}

.faq-item.open .faq-answer {
  display:block;
  animation:fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity:0; transform:translateY(-6px); }
  to   { opacity:1; transform:translateY(0); }
}

/* ---------- CTA横幅 ---------- */
.cta-banner {
  padding:64px 32px;
  text-align:center;
  border-radius:40px 12px 40px 12px;
  background:linear-gradient(120deg,#FF6348 0%,#F59070 50%,#E5A755 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(255,99,72,0.28);
}

.cta-banner::before {
  content:'';
  position:absolute;
  top:-50px;
  right:-50px;
  width:180px;
  height:180px;
  border-radius:50%;
  background:rgba(255,255,255,0.12);
}

.cta-banner::after {
  content:'';
  position:absolute;
  bottom:-70px;
  left:-30px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:rgba(255,255,255,0.08);
}

.cta-banner h2 {
  color:#fff;
  font-size:clamp(1.8rem, 3vw, 2.6rem);
  font-weight:800;
  letter-spacing:-1px;
  margin-bottom:12px;
  position:relative;
  z-index:1;
}

.cta-banner p {
  position:relative;
  z-index:1;
  opacity:0.9;
  font-size:1.05rem;
  margin-bottom:28px;
}

.cta-banner .btn-primary {
  background:#fff;
  color:#FF6348;
  box-shadow:0 8px 20px rgba(0,0,0,0.12);
  position:relative;
  z-index:1;
}

.cta-banner .btn-primary:hover {
  transform:translateY(-2px) scale(1.02);
  box-shadow:0 12px 28px rgba(0,0,0,0.16);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding:64px 0 28px;
  background:#F3E9E4;
  color:#5C4A4C;
  border-top:1px solid rgba(255,99,72,0.1);
}

.site-footer .container { }

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;
  margin-bottom:36px;
}

.footer-brand p {
  font-size:0.9rem;
  opacity:0.75;
  line-height:1.8;
  margin-top:10px;
}

.footer-col h4 {
  font-size:0.9rem;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:16px;
  color:#FF6348;
}

.footer-col ul {
  list-style:none;
}

.footer-col ul li {
  margin-bottom:8px;
}

.footer-col a {
  color:#6C5A5C;
  text-decoration:none;
  font-size:0.9rem;
  transition:color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color:#FF6348;
  padding-left:4px;
}

.footer-bottom {
  border-top:1px solid rgba(92,74,76,0.15);
  padding-top:24px;
  text-align:center;
  font-size:0.82rem;
  opacity:0.7;
  color:#5C4A4C;
}

/* ---------- 工具类 ---------- */
.text-accent { color:#FF6348; }
.text-center { text-align:center; }

.seo-description {
  max-width:600px;
  margin:0 auto 48px;
  opacity:0.75;
  font-size:0.98rem;
  line-height:1.8;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .hero .container {
    flex-direction:column;
    text-align:center;
    gap:48px;
    padding-top:40px;
  }
  .hero-content { max-width:100%; }
  .hero p { margin-left:auto; margin-right:auto; }
  .hero-buttons { justify-content:center; }
  .hero-image { max-width:340px; margin:0 auto; }
  .feature-block { grid-template-columns:1fr; gap:48px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding:64px 0; }
  .header-inner { height:64px; }
  .main-nav {
    display:none;
  }
  .menu-toggle {
    display:flex;
  }
  .main-nav.open {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:72px;
    left:16px;
    right:16px;
    background:#ffffff;
    border:1px solid rgba(255,99,72,0.12);
    border-radius:24px 8px 24px 8px;
    padding:24px;
    box-shadow:0 20px 50px rgba(61,52,53,0.12);
    gap:16px;
    align-items:flex-start;
    z-index:999;
  }
  .main-nav.open a {
    font-size:1.05rem;
    padding:8px 0;
  }
  .nav-cta {
    margin-top:8px;
    width:100%;
    text-align:center;
  }
  .hero { min-height:auto; padding:120px 0 64px; }
  .hero h1 { font-size:2.2rem; }
  .hero-image { max-width:280px; }
  .cards-grid .content-wall .stats-bar { grid-template-columns:1fr; }
  .faq-item .faq-question { font-size:0.95rem; }
}

@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; }
  .hero-buttons .btn { width:100%; justify-content:center; }
  .btn { padding:14px 24px; font-size:0.9rem; }
  .cta-banner { padding:48px 20px; }
  .stat-number { font-size:2rem; }
}