:root {
  --primary: #0A2463;
  --primary-dark: #061840;
  --primary-light: #1A3A7A;
  --primary-rgb: 10,36,99;
  --accent: #1E90FF;
  --accent-light: #4DA8FF;
  --accent-rgb: 30,144,255;
  --gold: #C9A96E;
  --gold-rgb: 201,169,110;
  --gray-50: #F5F7FA;
  --gray-100: #E8ECF1;
  --gray-200: #D1D7E0;
  --gray-300: #A0AEC0;
  --gray-400: #718096;
  --gray-500: #4A5568;
  --gray-600: #2D3748;
  --gray-700: #1A202C;
  --white: #FFFFFF;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --shadow: 0 4px 20px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.16);
  --transition: all .35s cubic-bezier(.4,0,.2,1);
  --font-sans: 'Segoe UI','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --max-width: 1280px;
  --header-height: 80px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);font-size:1rem;line-height:1.7;color:var(--gray-500);background:var(--white);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
input,button,textarea,select{font-family:inherit;font-size:inherit;outline:none}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,h5,h6{color:var(--gray-700);font-weight:700;line-height:1.25}

.lang-cn .lang-en{display:none !important}
.lang-en .lang-cn{display:none !important}

.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}

/* ===== HEADER ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);display:flex;align-items:center;transition:var(--transition);background:var(--primary-dark)}
.header.header-transparent{background:transparent}
.header.scrolled{background:rgba(255,255,255,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 1px 20px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;width:100%}
.logo{display:flex;align-items:center;flex-shrink:0;gap:10px}
.logo img{height:40px;width:auto}
.logo-text{font-size:1.15rem;font-weight:700;color:var(--white);letter-spacing:.5px;transition:var(--transition)}
.header.scrolled .logo-text{color:var(--primary)}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{display:block;padding:8px 18px;font-size:.9rem;font-weight:500;color:rgba(255,255,255,.85);border-radius:var(--radius);transition:var(--transition);white-space:nowrap;letter-spacing:.3px}
.header.scrolled .nav-link{color:var(--gray-600)}
.nav-link:hover,.nav-link.active{color:var(--white);background:rgba(255,255,255,.12)}
.header.scrolled .nav-link:hover,.header.scrolled .nav-link.active{color:var(--primary);background:rgba(var(--primary-rgb),.06)}
.nav-item{position:relative}
.nav-item.has-dropdown>.nav-link::after{content:'';display:inline-block;width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-left:5px;vertical-align:middle;margin-top:-2px}
.nav-dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);min-width:180px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:8px 0;opacity:0;visibility:hidden;transition:var(--transition)}
.nav-item.has-dropdown:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-dropdown a{display:block;padding:10px 24px;font-size:.88rem;color:var(--gray-600);transition:var(--transition)}
.nav-dropdown a:hover{color:var(--primary);background:var(--gray-50)}
.header-actions{display:flex;align-items:center;gap:14px}
.lang-switch{display:flex;align-items:center;gap:2px;font-size:.78rem;font-weight:600}
.lang-switch a{padding:4px 10px;border-radius:20px;color:rgba(255,255,255,.7);transition:var(--transition)}
.header.scrolled .lang-switch a{color:var(--gray-400)}
.lang-switch a.active,.lang-switch a:hover{color:var(--white);background:rgba(255,255,255,.15)}
.header.scrolled .lang-switch a.active,.header.scrolled .lang-switch a:hover{color:var(--primary);background:rgba(var(--primary-rgb),.08)}
.lang-divider{color:rgba(255,255,255,.3);font-weight:300}
.header.scrolled .lang-divider{color:var(--gray-300)}
.header-search-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);border-radius:50%;transition:var(--transition);font-size:1rem}
.header.scrolled .header-search-btn{color:var(--gray-400)}
.header-search-btn:hover{color:var(--white);background:rgba(255,255,255,.12)}
.header.scrolled .header-search-btn:hover{color:var(--primary);background:var(--gray-50)}
.hamburger{display:none;flex-direction:column;gap:5px;width:28px;height:20px;justify-content:center;z-index:1001}
.hamburger span{display:block;height:2px;background:var(--white);border-radius:2px;transition:var(--transition)}
.header.scrolled .hamburger span{background:var(--gray-700)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:998;opacity:0;visibility:hidden;transition:var(--transition)}
.nav-overlay.show{opacity:1;visibility:visible}

/* ===== HERO ===== */
.hero{position:relative;height:100vh;min-height:600px;overflow:hidden;background:var(--primary-dark)}
.hero-slider{position:relative;height:100%}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease}
.hero-slide.active{opacity:1;z-index:1}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,24,64,.88) 0%,rgba(10,36,99,.6) 50%,rgba(30,144,255,.15) 100%);z-index:2}
.hero-content{position:absolute;inset:0;z-index:3;display:flex;align-items:center}
.hero-text{max-width:700px;color:var(--white)}
.hero-text h1{font-size:3.5rem;color:var(--white);margin-bottom:20px;line-height:1.15;font-weight:800;letter-spacing:-.5px}
.hero-text h1 span{color:var(--accent-light)}
.hero-text p{font-size:1.2rem;color:rgba(255,255,255,.8);margin-bottom:40px;line-height:1.7}
.hero-dots{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;gap:12px;z-index:4}
.hero-dot{width:40px;height:4px;border-radius:2px;background:rgba(255,255,255,.3);cursor:pointer;transition:var(--transition)}
.hero-dot.active{background:var(--white);width:60px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.1);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:var(--transition);border:1px solid rgba(255,255,255,.15)}
.hero-arrow:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.3)}
.hero-arrow.prev{left:32px}
.hero-arrow.next{right:32px}
.hero-scroll{position:absolute;bottom:40px;right:40px;z-index:4;display:flex;flex-direction:column;align-items:center;gap:8px;color:rgba(255,255,255,.5);font-size:.75rem;letter-spacing:2px;text-transform:uppercase}
.hero-scroll-line{width:1px;height:40px;background:linear-gradient(to bottom,rgba(255,255,255,.5),transparent);animation:scrollLine 2s ease infinite}
@keyframes scrollLine{0%{opacity:0;transform:scaleY(0);transform-origin:top}50%{opacity:1;transform:scaleY(1);transform-origin:top}51%{transform:scaleY(1);transform-origin:bottom}100%{opacity:0;transform:scaleY(0);transform-origin:bottom}}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;font-size:.92rem;font-weight:600;border-radius:50px;transition:var(--transition);white-space:nowrap;line-height:1.4;letter-spacing:.3px}
.btn-primary{background:var(--primary);color:var(--white)}
.btn-primary:hover{background:var(--primary-light);color:var(--white);transform:translateY(-2px);box-shadow:0 8px 25px rgba(var(--primary-rgb),.35)}
.btn-accent{background:var(--accent);color:var(--white)}
.btn-accent:hover{background:var(--accent-light);color:var(--white);transform:translateY(-2px);box-shadow:0 8px 25px rgba(var(--accent-rgb),.35)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:var(--white);transform:translateY(-2px)}
.btn-outline-light{border:2px solid rgba(255,255,255,.4);color:var(--white);background:transparent}
.btn-outline-light:hover{background:var(--white);color:var(--primary);transform:translateY(-2px)}
.btn-light{background:var(--white);color:var(--primary)}
.btn-light:hover{background:var(--gray-50);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-gold{background:linear-gradient(135deg,var(--gold),#D4B87A);color:var(--white)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(var(--gold-rgb),.35);color:var(--white)}

/* ===== SECTIONS ===== */
.section{padding:100px 0;position:relative}
.section-header{text-align:center;margin-bottom:60px}
.section-label{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.section-title{font-size:2.5rem;color:var(--gray-700);margin-bottom:16px;font-weight:800;letter-spacing:-.3px}
.section-subtitle{font-size:1.05rem;color:var(--gray-400);max-width:560px;margin:0 auto;line-height:1.7}
.section-line{width:48px;height:3px;background:linear-gradient(90deg,var(--accent),var(--gold));margin:20px auto 0;border-radius:2px}
.bg-gray{background:var(--gray-50)}
.bg-dark{background:var(--primary-dark);color:rgba(255,255,255,.85)}
.bg-dark .section-title{color:var(--white)}
.bg-dark .section-subtitle{color:rgba(255,255,255,.6)}
.bg-gradient{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);color:rgba(255,255,255,.85)}
.bg-gradient .section-title{color:var(--white)}
.bg-gradient .section-subtitle{color:rgba(255,255,255,.6)}

/* ===== CATEGORY ===== */
.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.category-card{text-align:center;padding:0;border-radius:var(--radius-lg);background:var(--white);box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.category-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--gold));transform:scaleX(0);transition:var(--transition);z-index:2}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--gray-100)}
.category-card:hover::before{transform:scaleX(1)}
.category-card-img{aspect-ratio:4/3;overflow:hidden;background:var(--gray-50)}
.category-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.category-card:hover .category-card-img img{transform:scale(1.08)}
.category-name{font-size:1.05rem;font-weight:600;color:var(--gray-700);padding:16px 12px}

/* ===== PRODUCT GRID ===== */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);box-shadow:var(--shadow-sm);border:1px solid var(--gray-100)}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-card-img{position:relative;overflow:hidden;aspect-ratio:1/1;background:var(--gray-50)}
.product-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.4,0,.2,1)}
.product-card:hover .product-card-img img{transform:scale(1.08)}
.product-card-badge{position:absolute;top:12px;left:12px;padding:4px 12px;background:var(--accent);color:var(--white);font-size:.72rem;font-weight:700;border-radius:20px;letter-spacing:.5px}
.product-card-body{padding:20px}
.product-card-title{font-size:1rem;font-weight:600;color:var(--gray-700);margin-bottom:6px;transition:var(--transition)}
.product-card:hover .product-card-title{color:var(--primary)}
.product-card-desc{font-size:.85rem;color:var(--gray-400);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card-link{display:inline-flex;align-items:center;gap:4px;margin-top:12px;font-size:.85rem;font-weight:600;color:var(--accent);transition:var(--transition)}
.product-card-link:hover{gap:8px}

/* ===== ADVANTAGE ===== */
.advantage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.advantage-card{padding:40px 28px;border-radius:var(--radius-lg);background:rgba(255,255,255,.06);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);transition:var(--transition)}
.advantage-card:hover{background:rgba(255,255,255,.12);transform:translateY(-4px);border-color:rgba(255,255,255,.2)}
.advantage-icon{font-size:2.5rem;margin-bottom:20px}
.advantage-title{font-size:1.1rem;font-weight:700;color:var(--white);margin-bottom:10px}
.advantage-desc{font-size:.9rem;color:rgba(255,255,255,.65);line-height:1.7}

/* ===== STATS ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:60px 0}
.stat-item{text-align:center}
.stat-number{font-size:3rem;font-weight:800;color:var(--white);line-height:1;margin-bottom:8px}
.stat-number span{color:var(--accent-light)}
.stat-label{font-size:.9rem;color:rgba(255,255,255,.6);letter-spacing:.5px}

/* ===== ABOUT ===== */
.about-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-img{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-xl)}
.about-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.about-img::after{content:'';position:absolute;bottom:0;left:0;right:0;height:40%;background:linear-gradient(to top,rgba(var(--primary-rgb),.3),transparent)}
.about-badge{position:absolute;bottom:24px;left:24px;z-index:2;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);padding:16px 24px;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.about-badge-number{font-size:1.8rem;font-weight:800;color:var(--primary);line-height:1}
.about-badge-text{font-size:.8rem;color:var(--gray-400);margin-top:4px}
.about-content h2{font-size:2.2rem;margin-bottom:24px;font-weight:800}
.about-subtitle{font-size:1.3rem;color:var(--primary);margin-bottom:12px;font-weight:700}
.about-highlight{font-size:1.05rem;color:var(--gray-600);font-weight:600;line-height:1.8;margin-bottom:16px}
.about-promise{background:rgba(var(--primary-rgb),.04);border-left:3px solid var(--accent);padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;margin:20px 0}
.about-promise-title{font-size:.95rem;font-weight:700;color:var(--primary);margin-bottom:6px}
.about-promise p{margin-bottom:0;font-size:.9rem;color:var(--gray-500);line-height:1.8}
.about-content p{margin-bottom:16px;color:var(--gray-500);line-height:1.9;font-size:.95rem}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.about-feature{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:600;color:var(--gray-600)}
.about-feature-icon{width:28px;height:28px;background:rgba(var(--accent-rgb),.1);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:.8rem;flex-shrink:0}

/* ===== CASE ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;background:var(--gray-100)}
.case-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.4,0,.2,1)}
.case-card:hover img{transform:scale(1.1)}
.case-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,24,64,.85) 0%,rgba(6,24,64,.2) 50%,transparent 100%);display:flex;align-items:flex-end;padding:28px;opacity:0;transition:var(--transition)}
.case-card:hover .case-overlay{opacity:1}
.case-info{color:var(--white);transform:translateY(10px);transition:var(--transition)}
.case-card:hover .case-info{transform:translateY(0)}
.case-info h4{color:var(--white);font-size:1.1rem;margin-bottom:6px;font-weight:700}
.case-info p{font-size:.85rem;opacity:.8}

/* ===== NEWS ===== */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);box-shadow:var(--shadow-sm);border:1px solid var(--gray-100)}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.news-card-img{aspect-ratio:16/10;overflow:hidden;background:var(--gray-50);position:relative}
.news-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-card-img img{transform:scale(1.06)}
.news-card-date-badge{position:absolute;top:12px;left:12px;background:var(--primary);color:var(--white);padding:6px 12px;border-radius:var(--radius);text-align:center;line-height:1.2}
.news-card-date-badge .day{font-size:1.3rem;font-weight:800;display:block}
.news-card-date-badge .month{font-size:.65rem;text-transform:uppercase;letter-spacing:1px;opacity:.8}
.news-card-body{padding:20px}
.news-card-title{font-size:1rem;font-weight:600;color:var(--gray-700);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:var(--transition)}
.news-card:hover .news-card-title{color:var(--primary)}
.news-card-desc{font-size:.85rem;color:var(--gray-400);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.6}

/* ===== CTA / MESSAGE ===== */
.cta-section{position:relative;padding:100px 0;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,24,64,.92),rgba(10,36,99,.88));z-index:1}
.cta-section .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.cta-form{background:rgba(255,255,255,.08);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:40px;border-radius:var(--radius-xl);border:1px solid rgba(255,255,255,.12)}
.cta-form h3{color:var(--white);font-size:1.3rem;margin-bottom:24px}
.cta-form .form-group label{color:rgba(255,255,255,.8)}
.cta-form .form-control{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:var(--white)}
.cta-form .form-control::placeholder{color:rgba(255,255,255,.4)}
.cta-form .form-control:focus{border-color:var(--accent);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.2)}

/* ===== FOOTER ===== */
.footer{background:var(--primary-dark);color:rgba(255,255,255,.75);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px}
.footer h4{color:var(--white);font-size:1.05rem;margin-bottom:24px;position:relative;padding-bottom:14px;font-weight:700}
.footer h4::after{content:'';position:absolute;bottom:0;left:0;width:32px;height:2px;background:linear-gradient(90deg,var(--accent),var(--gold))}
.footer-about p{font-size:.9rem;line-height:1.8;margin-bottom:16px}
.footer-links a{display:block;color:rgba(255,255,255,.6);font-size:.9rem;padding:6px 0;transition:var(--transition)}
.footer-links a:hover{color:var(--white);padding-left:6px}
.footer-contact-item{display:flex;gap:12px;margin-bottom:14px;font-size:.9rem}
.footer-contact-icon{color:var(--accent);flex-shrink:0;margin-top:2px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:48px;padding:24px 0;text-align:center;font-size:.85rem;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--white)}

/* ===== PAGE BANNER ===== */
.page-banner{background:linear-gradient(135deg,var(--primary-dark),var(--primary));padding:120px 0 56px;margin-top:var(--header-height);text-align:center;color:var(--white);position:relative;overflow:hidden}
.page-banner::before{content:'';position:absolute;top:-50%;right:-20%;width:400px;height:400px;border-radius:50%;background:rgba(var(--accent-rgb),.08)}
.page-banner::after{content:'';position:absolute;bottom:-30%;left:-10%;width:300px;height:300px;border-radius:50%;background:rgba(var(--gold-rgb),.06)}
.page-banner h1{color:var(--white);font-size:2.2rem;margin-bottom:8px;font-weight:800;position:relative;z-index:1}
.page-banner p{color:rgba(255,255,255,.7);font-size:1rem;position:relative;z-index:1}

/* ===== BREADCRUMB ===== */
.breadcrumb{background:var(--gray-50);padding:14px 0;border-bottom:1px solid var(--gray-100);font-size:.88rem;color:var(--gray-400)}
.breadcrumb a{color:var(--gray-500)}
.breadcrumb a:hover{color:var(--primary)}

/* ===== SIDEBAR LAYOUT ===== */
.page-layout{display:grid;grid-template-columns:260px 1fr;gap:36px;padding:48px 0}
.sidebar{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;position:sticky;top:calc(var(--header-height) + 20px);align-self:start}
.sidebar-title{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:var(--white);padding:20px 24px;font-size:1.05rem;font-weight:700}
.sidebar-nav a{display:block;padding:14px 24px;font-size:.92rem;color:var(--gray-600);border-bottom:1px solid var(--gray-50);transition:var(--transition)}
.sidebar-nav a:hover,.sidebar-nav a.active{color:var(--primary);background:rgba(var(--primary-rgb),.04);padding-left:28px;border-left:3px solid var(--accent)}

/* ===== LIST ITEMS ===== */
.list-items{display:flex;flex-direction:column;gap:20px}
.list-item{display:flex;gap:24px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:var(--transition);border:1px solid var(--gray-100)}
.list-item:hover{box-shadow:var(--shadow-lg);border-color:transparent}
.list-item-img{width:280px;flex-shrink:0;overflow:hidden;background:var(--gray-50)}
.list-item-img img{width:100%;height:100%;object-fit:cover;min-height:200px;transition:transform .5s ease}
.list-item:hover .list-item-img img{transform:scale(1.05)}
.list-item-body{padding:24px 24px 24px 0;display:flex;flex-direction:column}
.list-item-title{font-size:1.15rem;font-weight:600;color:var(--gray-700);margin-bottom:8px;transition:var(--transition)}
.list-item:hover .list-item-title{color:var(--primary)}
.list-item-date{font-size:.82rem;color:var(--gray-400);margin-bottom:12px}
.list-item-desc{font-size:.9rem;color:var(--gray-500);line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ===== PRODUCT LIST GRID ===== */
.product-list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.category-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.category-tab{padding:8px 22px;border-radius:50px;font-size:.88rem;font-weight:500;color:var(--gray-500);background:var(--gray-50);transition:var(--transition);border:1px solid transparent}
.category-tab:hover,.category-tab.active{color:var(--primary);background:rgba(var(--primary-rgb),.06);border-color:var(--primary)}

/* ===== DETAIL PAGE ===== */
.detail-header{margin-bottom:36px}
.detail-title{font-size:2rem;color:var(--gray-700);margin-bottom:16px;font-weight:800}
.detail-meta{display:flex;gap:24px;font-size:.88rem;color:var(--gray-400);padding-bottom:20px;border-bottom:1px solid var(--gray-100)}
.detail-content{line-height:2;font-size:1rem;color:var(--gray-600)}
.detail-content img{max-width:100%;border-radius:var(--radius-lg);margin:20px 0}
.detail-content p{margin-bottom:18px}
.detail-content table{width:100%;border-collapse:collapse;margin:20px 0}
.detail-content th,.detail-content td{border:1px solid var(--gray-200);padding:12px 16px;text-align:left}
.detail-content th{background:var(--gray-50);font-weight:600}
.detail-nav{display:flex;justify-content:space-between;padding:28px 0;margin-top:48px;border-top:1px solid var(--gray-100)}
.detail-nav a{font-size:.92rem;color:var(--gray-500);max-width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:var(--transition)}
.detail-nav a:hover{color:var(--primary)}

/* ===== PRODUCT GALLERY ===== */
.product-gallery{margin-bottom:36px}
.product-gallery-main{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:16px;background:var(--gray-50)}
.product-gallery-main img{width:100%;aspect-ratio:1/1;object-fit:cover}
.product-gallery-thumbs{display:flex;gap:10px;overflow-x:auto}
.product-gallery-thumb{width:80px;height:80px;border-radius:var(--radius);overflow:hidden;cursor:pointer;opacity:.5;border:2px solid transparent;transition:var(--transition);flex-shrink:0}
.product-gallery-thumb.active,.product-gallery-thumb:hover{opacity:1;border-color:var(--primary)}
.product-gallery-thumb img{width:100%;height:100%;object-fit:cover}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:14px;overflow:hidden;border:1px solid var(--gray-100);transition:var(--transition)}
.faq-item:hover{border-color:var(--gray-200)}
.faq-question{width:100%;display:flex;align-items:center;gap:16px;padding:22px 28px;font-size:1rem;font-weight:600;color:var(--gray-700);text-align:left;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-icon{width:32px;height:32px;flex-shrink:0;background:rgba(var(--primary-rgb),.06);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;color:var(--primary);transition:var(--transition)}
.faq-item.open .faq-icon{background:var(--primary);color:var(--white);transform:rotate(45deg)}
.faq-toggle{margin-left:auto;font-size:1.2rem;color:var(--gray-300);transition:var(--transition)}
.faq-item.open .faq-toggle{transform:rotate(45deg);color:var(--primary)}
.faq-answer{padding:0 28px 24px;font-size:.92rem;color:var(--gray-500);line-height:1.9;display:none}
.faq-item.open .faq-answer{display:block}

/* ===== PAGINATION ===== */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;padding:48px 0 20px}
.pagination .page-num,.pagination .page-index,.pagination .page-pre,.pagination .page-next,.pagination .page-last{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border-radius:50px;font-size:.9rem;font-weight:500;color:var(--gray-600);background:var(--white);border:1px solid var(--gray-200);transition:var(--transition)}
.pagination .page-num-current{background:var(--primary);color:var(--white);border-color:var(--primary)}
.pagination .page-num:hover,.pagination .page-index:hover,.pagination .page-pre:hover,.pagination .page-next:hover,.pagination .page-last:hover{background:var(--gray-50);border-color:var(--primary);color:var(--primary)}

/* ===== ABOUT PAGE ===== */
.about-page-intro{margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid var(--gray-100)}
.about-page-section{margin-bottom:40px}
.about-page-section-title{font-size:1.3rem;color:var(--gray-700);margin-bottom:20px;padding-left:16px;border-left:3px solid var(--accent);font-weight:700}
.about-page-content p{font-size:.95rem;color:var(--gray-500);line-height:2;margin-bottom:14px;text-indent:2em}
.about-business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.about-business-item{background:var(--white);border:1px solid var(--gray-100);border-radius:var(--radius-lg);padding:28px 20px;text-align:center;transition:var(--transition)}
.about-business-item:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-4px)}
.about-business-icon{font-size:2rem;margin-bottom:12px}
.about-business-item h4{font-size:1rem;color:var(--gray-700);margin-bottom:8px;font-weight:700}
.about-business-item p{font-size:.85rem;color:var(--gray-400);line-height:1.6}
.about-promise-lg{background:linear-gradient(135deg,rgba(var(--primary-rgb),.04),rgba(var(--accent-rgb),.04));border-left:4px solid var(--accent);padding:24px 28px;border-radius:0 var(--radius-lg) var(--radius-lg) 0;margin-bottom:28px}
.about-promise-lg p{font-size:1rem;color:var(--gray-600);line-height:2;font-weight:500;margin:0}
.about-commitment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.about-commitment-item{display:flex;gap:16px;padding:20px;background:var(--gray-50);border-radius:var(--radius-lg);transition:var(--transition)}
.about-commitment-item:hover{background:var(--white);box-shadow:var(--shadow)}
.about-commitment-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--white);flex-shrink:0}
.about-commitment-item h4{font-size:.95rem;color:var(--gray-700);margin-bottom:4px;font-weight:700}
.about-commitment-item p{font-size:.85rem;color:var(--gray-400);line-height:1.6;margin:0}

/* ===== CONTACT ===== */
.contact-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-page-title{font-size:1.8rem;color:var(--gray-700);margin-bottom:12px;font-weight:800}
.contact-page-desc{font-size:.95rem;color:var(--gray-400);margin-bottom:32px;line-height:1.7}
.contact-info-item{display:flex;gap:16px;margin-bottom:28px}
.contact-info-icon{width:52px;height:52px;background:linear-gradient(135deg,rgba(var(--primary-rgb),.08),rgba(var(--accent-rgb),.08));border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--primary);flex-shrink:0}
.contact-info-text h4{font-size:1rem;margin-bottom:4px;font-weight:700}
.contact-info-text p{font-size:.9rem;color:var(--gray-400)}
.contact-form{background:var(--white);padding:36px;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);border:1px solid var(--gray-100)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.88rem;font-weight:600;color:var(--gray-600);margin-bottom:8px}
.form-control{width:100%;padding:12px 18px;border:1.5px solid var(--gray-200);border-radius:var(--radius);font-size:.95rem;color:var(--gray-700);background:var(--white);transition:var(--transition)}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(var(--primary-rgb),.08)}
textarea.form-control{min-height:120px;resize:vertical}
.map-container{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow)}
.map-container iframe{width:100%;height:400px;border:none}

/* ===== BACK TOP ===== */
.back-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transition:var(--transition);z-index:999}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--accent);transform:translateY(-3px)}

/* ===== ANIMATIONS ===== */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.fade-left{opacity:0;transform:translateX(-30px);transition:opacity .6s ease,transform .6s ease}
.fade-left.visible{opacity:1;transform:translateX(0)}
.fade-right{opacity:0;transform:translateX(30px);transition:opacity .6s ease,transform .6s ease}
.fade-right.visible{opacity:1;transform:translateX(0)}

/* ===== UTILITY ===== */
.text-center{text-align:center}
.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}

/* ===== RESPONSIVE - Tablet ===== */
@media(max-width:1199px){
  .container{padding:0 24px}
  .hero-text h1{font-size:2.5rem}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(3,1fr)}
  .advantage-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .product-list-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-layout{grid-template-columns:220px 1fr}
  .list-item-img{width:220px}
  .about-row{gap:40px}
  .about-row,.contact-row,.cta-grid{grid-template-columns:1fr;gap:32px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .section-title{font-size:2rem}
}

/* ===== RESPONSIVE - Mobile ===== */
@media(max-width:767px){
  :root{--header-height:64px}
  .section{padding:64px 0}
  .section-title{font-size:1.6rem}
  .section-header{margin-bottom:36px}
  .hamburger{display:flex}
  .nav{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--white);box-shadow:var(--shadow-xl);flex-direction:column;align-items:stretch;padding:80px 24px 24px;transition:right .3s ease;overflow-y:auto;z-index:999}
  .nav.mobile-open{right:0}
  .nav-list{flex-direction:column;gap:0}
  .nav-link{padding:14px 12px;border-radius:var(--radius);color:var(--gray-600) !important}
  .nav-link:hover,.nav-link.active{color:var(--primary) !important;background:rgba(var(--primary-rgb),.06) !important}
  .nav-dropdown{position:static;box-shadow:none;opacity:1;visibility:visible;transform:none;padding:0 0 0 16px;display:none}
  .nav-item.has-dropdown.open .nav-dropdown{display:block}
  .header-actions{gap:8px}
  .hero{height:100vh;min-height:500px}
  .hero-text h1{font-size:1.8rem}
  .hero-text p{font-size:.95rem;margin-bottom:24px}
  .hero-arrow{width:40px;height:40px;font-size:1rem}
  .hero-arrow.prev{left:12px}
  .hero-arrow.next{right:12px}
  .hero-scroll{display:none}
  .product-grid,.product-list-grid,.advantage-grid,.news-grid,.case-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .about-row{grid-template-columns:1fr;gap:24px}
  .about-business-grid{grid-template-columns:repeat(2,1fr)}
  .about-commitment-grid{grid-template-columns:1fr}
  .contact-row{grid-template-columns:1fr;gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:24px}
  .page-layout{grid-template-columns:1fr}
  .sidebar{margin-bottom:24px;position:static}
  .list-item{flex-direction:column}
  .list-item-img{width:100%;height:200px}
  .list-item-body{padding:20px}
  .detail-title{font-size:1.4rem}
  .detail-meta{flex-wrap:wrap;gap:12px}
  .page-banner{padding:100px 0 40px}
  .page-banner h1{font-size:1.6rem}
  .stats-row{grid-template-columns:1fr 1fr;gap:20px}
  .stat-number{font-size:2rem}
  .about-features{grid-template-columns:1fr}
  .back-top{bottom:20px;right:20px;width:42px;height:42px}
}