* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
 }
 body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f8f9fa;
  color: #2C3E50;
  line-height: 1.7;
  padding: 20px;
 }
 .page {
  max-width: 1200px;
  margin: 0 auto;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(44,62,80,0.08);
  padding: 40px 48px;
 }
 h1 {
  font-size: 2.6rem;
  font-weight: 700;
  color: #2C3E50;
  letter-spacing: -0.02em;
  line-height: 1.2;
  padding-bottom: 12px;
  border-bottom: 4px solid #E87722;
  display: inline-block;
  margin-bottom: 32px;
 }
 h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: #2C3E50;
  margin-top: 56px;
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 5px solid #E87722;
  line-height: 1.3;
 }
 h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: #2C3E50;
  margin-top: 36px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
 }
 h3::before {
  content: "▸";
  color: #E87722;
  font-size: 1.6rem;
  line-height: 1;
 }
 p {
  font-size: 1.05rem;
  color: #3d5166;
  margin-bottom: 18px;
  text-align: justify;
 }
 .highlight {
  color: #E87722;
  font-weight: 600;
 }
 .grid-row {
  display: flex;
  gap: 40px;
  align-items: center;
  margin: 32px 0 40px;
 }
 .grid-row.reverse {
  flex-direction: row-reverse;
 }
 .grid-row .text {
  flex: 1 1 55%;
 }
 .grid-row .image {
  flex: 1 1 45%;
 }
 .grid-row .image img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(44,62,80,0.10);
  display: block;
  transition: transform 0.3s ease;
 }
 .grid-row .image img:hover {
  transform: scale(1.01);
 }
 .full-img {
  margin: 32px 0 36px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(44,62,80,0.10);
 }
 .full-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
 }
 .full-img img:hover {
  transform: scale(1.01);
 }
 .advantage-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
  margin: 20px 0 28px;
 }
 .advantage-list li {
  font-size: 1.05rem;
  color: #2C3E50;
  padding: 10px 16px 10px 36px;
  background: #f0f4f8;
  border-radius: 10px;
  position: relative;
  transition: background 0.2s;
 }
 .advantage-list li::before {
  content: "✓";
  position: absolute;
  left: 12px;
  top: 10px;
  color: #E87722;
  font-weight: 700;
  font-size: 1.2rem;
 }
 .advantage-list li:hover {
  background: #e8edf3;
 }
 .tagline {
  font-size: 1.2rem;
  color: #E87722;
  font-weight: 500;
  margin-top: -16px;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
 }
 .section-spacer {
  margin-top: 16px;
 }
 .quote-line {
  background: #f5f7fa;
  padding: 24px 32px;
  border-radius: 16px;
  border-left: 6px solid #E87722;
  margin: 32px 0;
  font-size: 1.1rem;
  color: #2C3E50;
  line-height: 1.6;
 }
 .quote-line strong {
  color: #E87722;
 }
 
 @media (max-width: 1024px) {
  .page {
   padding: 28px 24px;
  }
  h1 {
   font-size: 2.2rem;
  }
  h2 {
   font-size: 1.6rem;
  }
 }
 @media (max-width: 768px) {
  body {
   padding: 12px;
  }
  .page {
   padding: 20px 16px;
   border-radius: 16px;
  }
  h1 {
   font-size: 1.8rem;
   display: block;
   border-bottom-width: 3px;
  }
  .tagline {
   font-size: 1rem;
   margin-top: -8px;
  }
  h2 {
   font-size: 1.4rem;
   padding-left: 12px;
   border-left-width: 4px;
   margin-top: 40px;
  }
  h3 {
   font-size: 1.2rem;
  }
  p {
   font-size: 1rem;
  }
  .grid-row {
   flex-direction: column;
   gap: 20px;
   margin: 20px 0 28px;
  }
  .grid-row.reverse {
   flex-direction: column;
  }
  .grid-row .text,
  .grid-row .image {
   flex: 1 1 100%;
   width: 100%;
  }
  .grid-row .image img {
   width: 100%;
   height: auto;
   border-radius: 12px;
  }
  .full-img {
   margin: 20px 0 24px;
   border-radius: 12px;
  }
  .advantage-list {
   grid-template-columns: 1fr;
   gap: 10px;
  }
  .advantage-list li {
   font-size: 0.98rem;
   padding: 8px 14px 8px 32px;
  }
  .advantage-list li::before {
   left: 10px;
   top: 8px;
  }
  .quote-line {
   padding: 18px 20px;
   font-size: 1rem;
  }
 }
 @media (max-width: 480px) {
  .page {
   padding: 14px 10px;
  }
  h1 {
   font-size: 1.5rem;
  }
  h2 {
   font-size: 1.25rem;
   margin-top: 32px;
  }
  h3 {
   font-size: 1.1rem;
  }
  p {
   font-size: 0.95rem;
  }
  .tagline {
   font-size: 0.9rem;
  }
 }

.kuang-nav { position:sticky; top:0; z-index:1000; background:#fff; border-bottom:2px solid #E87722; box-shadow:0 2px 12px rgba(0,0,0,0.06); }
.kuang-nav-inner { max-width:1200px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; height:60px; padding:0 24px; }
.kuang-nav-brand { display:flex; align-items:center; gap:10px; text-decoration:none; flex-shrink:0; }
.kuang-nav-brand-icon { width:36px; height:36px; background:#E87722; border-radius:8px; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:18px; }
.kuang-nav-brand-text { font-size:17px; font-weight:700; color:#2C3E50; }
.kuang-nav-links { display:flex; align-items:center; gap:2px; list-style:none; }
.kuang-nav-links a { display:block; padding:8px 16px; font-size:15px; font-weight:500; color:#3d4a5a; text-decoration:none; border-radius:6px; transition:color 0.2s,background 0.2s; white-space:nowrap; }
.kuang-nav-links a:hover, .kuang-nav-links a.kuang-active { color:#E87722; background:rgba(232,119,34,0.07); }
.kuang-nav-phone { display:flex; align-items:center; gap:6px; font-size:15px; font-weight:600; color:#E87722; text-decoration:none; flex-shrink:0; transition:opacity 0.2s; }
.kuang-nav-phone:hover { opacity:0.75; }
.kuang-hamburger { display:none; flex-direction:column; justify-content:center; align-items:center; width:40px; height:40px; cursor:pointer; border:none; background:transparent; gap:5px; -webkit-tap-highlight-color:transparent; }
.kuang-hamburger span { display:block; width:22px; height:2px; background:#2C3E50; border-radius:2px; transition:transform 0.3s,opacity 0.3s; }
.kuang-hamburger.kuang-open span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.kuang-hamburger.kuang-open span:nth-child(2) { opacity:0; }
.kuang-hamburger.kuang-open span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }
.kuang-mobile-menu { display:none; position:fixed; top:60px; left:0; right:0; background:#fff; border-bottom:2px solid #E87722; box-shadow:0 8px 24px rgba(0,0,0,0.1); z-index:999; padding:8px 0; transform:translateY(-8px); opacity:0; transition:transform 0.3s ease,opacity 0.3s ease; }
.kuang-mobile-menu.kuang-show { display:block; transform:translateY(0); opacity:1; }
.kuang-mobile-menu a { display:block; padding:12px 24px; font-size:16px; font-weight:500; color:#3d4a5a; text-decoration:none; border-left:3px solid transparent; transition:all 0.2s; }
.kuang-mobile-menu a:hover, .kuang-mobile-menu a.kuang-active { color:#E87722; background:rgba(232,119,34,0.05); border-left-color:#E87722; }
.kuang-mobile-menu .kuang-mob-phone { display:flex; align-items:center; gap:8px; padding:14px 24px; font-size:16px; font-weight:600; color:#E87722; text-decoration:none; border-top:1px solid #eee; margin-top:4px; }


.kuang-footer { background:#1a2332; color:#c0c8d4; }
.kuang-footer-inner { max-width:1200px; margin:0 auto; padding:44px 24px 0; }
.kuang-footer-top { display:flex; gap:48px; flex-wrap:wrap; padding-bottom:32px; border-bottom:1px solid rgba(255,255,255,0.08); }
.kuang-footer-brand { flex:1 1 260px; min-width:220px; }
.kuang-footer-brand-row { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.kuang-footer-brand-icon { width:36px; height:36px; background:#E87722; border-radius:8px; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:17px; flex-shrink:0; }
.kuang-footer-brand-name { font-size:18px; font-weight:700; color:#e8ecf0; }
.kuang-footer-brand p { font-size:14px; line-height:1.7; color:#7a8a9a; margin-bottom:14px; }
.kuang-footer-contact { display:flex; flex-direction:column; }
.kuang-footer-contact a { display:inline-flex; align-items:center; gap:6px; color:#E87722; text-decoration:none; font-size:14px; font-weight:500; margin-bottom:6px; transition:opacity 0.2s; }
.kuang-footer-contact a:hover { opacity:0.75; }
.kuang-footer-nav { flex:0 1 170px; min-width:140px; }
.kuang-footer-nav h3 { font-size:14px; font-weight:600; color:#e8ecf0; margin-bottom:16px; text-transform:uppercase; letter-spacing:0.5px; }
.kuang-footer-nav ul { list-style:none; }
.kuang-footer-nav ul li { margin-bottom:10px; }
.kuang-footer-nav ul li a { font-size:14px; color:#7a8a9a; text-decoration:none; transition:color 0.2s,transform 0.2s; display:inline-block; }
.kuang-footer-nav ul li a:hover { color:#E87722; transform:translateX(3px); }
.kuang-footer-news { flex:1 1 320px; min-width:260px; }
.kuang-footer-news h3 { font-size:14px; font-weight:600; color:#e8ecf0; margin-bottom:16px; text-transform:uppercase; letter-spacing:0.5px; }
.kuang-news-list { display:flex; flex-direction:column; }
.kuang-news-list a { display:block; padding:9px 14px 9px 24px; font-size:14px; color:#7a8a9a; text-decoration:none; border-radius:5px; position:relative; line-height:1.5; transition:color 0.2s,background 0.2s; }
.kuang-news-list a::before { content:""; position:absolute; left:10px; top:50%; transform:translateY(-50%); width:5px; height:5px; background:#3a4a5e; border-radius:50%; transition:background 0.2s; }
.kuang-news-list a:hover { color:#E87722; background:rgba(232,119,34,0.06); }
.kuang-news-list a:hover::before { background:#E87722; }
.kuang-news-list a + a { border-top:1px solid rgba(255,255,255,0.04); }
.kuang-footer-bottom { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px; padding:18px 0 22px; }
.kuang-footer-bottom p { font-size:13px; color:#4e5a6a; margin:0; }
.kuang-footer-bottom-links { display:flex; gap:18px; }
.kuang-footer-bottom-links a { font-size:13px; color:#4e5a6a; text-decoration:none; transition:color 0.2s; }
.kuang-footer-bottom-links a:hover { color:#E87722; }


.kuang-back-top { position:fixed; bottom:28px; right:28px; width:44px; height:44px; background:#E87722; color:#fff; border:none; border-radius:10px; cursor:pointer; display:flex; align-items:center; justify-content:center; box-shadow:0 4px 16px rgba(232,119,34,0.35); opacity:0; transform:translateY(12px); transition:all 0.3s ease; z-index:800; -webkit-tap-highlight-color:transparent; }
.kuang-back-top.kuang-visible { opacity:1; transform:translateY(0); }
.kuang-back-top:hover { background:#d06a1a; transform:translateY(-2px); }


@media (max-width:1024px) { .kuang-footer-top { gap:32px; } }
@media (max-width:768px) {
 .kuang-nav-links { display:none; }
 .kuang-nav-phone { display:none; }
 .kuang-hamburger { display:flex; }
 .kuang-footer-inner { padding:32px 20px 0; }
 .kuang-footer-top { flex-direction:column; gap:28px; }
 .kuang-footer-brand, .kuang-footer-nav, .kuang-footer-news { flex:1 1 100%; min-width:0; }
 .kuang-footer-bottom { flex-direction:column; text-align:center; }
}
@media (max-width:480px) {
 .kuang-nav-inner { padding:0 14px; height:54px; }
 .kuang-nav-brand-text { font-size:15px; }
 .kuang-nav-brand-icon { width:30px; height:30px; font-size:15px; border-radius:6px; }
 .kuang-mobile-menu { top:54px; }
 .kuang-footer-inner { padding:26px 14px 0; }
 .kuang-news-list a { font-size:13px; padding:8px 10px 8px 20px; }
 .kuang-news-list a::before { left:6px; width:4px; height:4px; }
 .kuang-back-top { width:38px; height:38px; bottom:16px; right:14px; border-radius:8px; }
}