/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;background:#FAFAFA;color:#1A1A2E;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.rtl{direction:rtl;font-family:'Noto Naskh Arabic','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif}

/* ===== Typography ===== */
h1{font-family:'Playfair Display','Noto Serif SC','STSong','Georgia',serif;font-size:clamp(2.2rem,5vw,4rem);font-weight:700;letter-spacing:0.04em;line-height:1.15;color:#1A1A2E}
h2{font-family:'Playfair Display','Noto Serif SC','STSong','Georgia',serif;font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:600;letter-spacing:0.03em;margin-bottom:1.5rem;color:#1A1A2E}
h3{font-family:'Playfair Display','Noto Serif SC','STSong','Georgia',serif;font-size:clamp(1.1rem,2vw,1.4rem);font-weight:600;letter-spacing:0.02em;color:#1A1A2E}
.gold{color:#C9A96E}
.gold-light{color:#B8942E}
.accent-line{display:inline-block;width:48px;height:2px;background:linear-gradient(90deg,#C9A96E,transparent);margin-bottom:1rem}
.accent-line.centered{margin:0 auto 1rem;display:block}
body.rtl .accent-line{background:linear-gradient(270deg,#C9A96E,transparent)}
.text-muted{color:#5A5A72}
.text-body{color:#3A3A50}

/* ===== Navigation ===== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:1.2rem 2rem;display:flex;justify-content:space-between;align-items:center;
  transition:all 0.4s ease;
  background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);
}
.navbar.scrolled{
  background:rgba(255,255,255,0.97);backdrop-filter:blur(20px);
  padding:0.8rem 2rem;box-shadow:0 2px 24px rgba(0,0,0,0.06);
  border-bottom:1px solid rgba(0,0,0,0.04);
}
.nav-brand{display:flex;align-items:flex-end;gap:0.8rem}
.nav-logo{height:38px;width:auto;display:block;border-radius:2px}
.logo{font-family:'Playfair Display','Noto Serif SC','STSong',serif;font-size:1.4rem;font-weight:700;letter-spacing:0.08em;color:#1A1A2E;line-height:1}
.logo span{color:#C9A96E}
.nav-right{display:flex;align-items:center;gap:1.5rem}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{color:#1A1A2E;text-decoration:none;font-size:0.95rem;letter-spacing:0.06em;text-transform:uppercase;transition:color 0.3s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:1px;background:#1A56DB;transition:width 0.3s}
.nav-links a:hover{color:#1A56DB}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:#1A56DB}
.nav-links a.active::after{width:100%}
body.rtl .nav-links a::after{left:auto;right:0}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.menu-toggle span{display:block;width:24px;height:2px;background:#1A1A2E;margin:5px 0;transition:0.3s}

/* ===== Language Switcher ===== */
.lang-switcher{position:relative}
.lang-btn{
  display:flex;align-items:center;gap:0.4rem;
  background:rgba(26,86,219,0.06);border:1px solid rgba(26,86,219,0.2);
  color:#1A56DB;padding:0.45rem 0.8rem;border-radius:2px;cursor:pointer;
  font-size:0.8rem;letter-spacing:0.04em;font-family:inherit;transition:all 0.3s;
}
.lang-btn:hover{background:rgba(26,86,219,0.12)}
.lang-btn .caret{font-size:0.6rem;opacity:0.7;transition:transform 0.3s}
.lang-switcher.open .lang-btn .caret{transform:rotate(180deg)}
.lang-menu{
  position:absolute;top:calc(100% + 0.5rem);right:0;min-width:170px;
  background:#FFFFFF;box-shadow:0 8px 32px rgba(0,0,0,0.1);
  border:1px solid rgba(0,0,0,0.06);border-radius:6px;
  padding:0.4rem;list-style:none;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:all 0.25s ease;z-index:1100;
}
body.rtl .lang-menu{right:auto;left:0}
.lang-switcher.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-menu li{
  display:flex;align-items:center;gap:0.6rem;padding:0.55rem 0.7rem;
  cursor:pointer;border-radius:4px;font-size:0.85rem;color:#4A4A62;transition:all 0.2s;
}
.lang-menu li:hover{background:#F0F4FF;color:#1A56DB}
.lang-menu li.active{color:#1A56DB;background:#EBF0FA;font-weight:600}
.lang-menu li .flag{font-size:1rem;line-height:1}
.lang-menu li .code{margin-left:auto;font-size:0.65rem;opacity:0.5;letter-spacing:0.05em}
body.rtl .lang-menu li .code{margin-left:0;margin-right:auto}

/* ===== Sections ===== */
section{padding:6rem 2rem;position:relative}
.section-inner{max-width:1200px;margin:0 auto}
.section-header{margin-bottom:1rem}
.section-header p{color:#5A5A72;line-height:1.8}
.section-alt{background:#F5F5F8}
.section-white{background:#FFFFFF}

/* ===== Hero ===== */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  text-align:center;position:relative;overflow:hidden;
  background:url('高端POLO衫网站首页图 (1).png') center/cover no-repeat;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.55) 100%);
  z-index:1;
}
.hero .section-inner{position:relative;z-index:2}
.hero-brand{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;margin-bottom:1.5rem}
.hero-brand-logo{width:280px;height:auto;display:block}
.hero-brand .brand-name{font-family:'Playfair Display','Noto Serif SC','STSong',serif;font-size:1.8rem;font-weight:700;letter-spacing:0.1em;color:#1A1A2E}
.hero-brand .brand-name span{color:#C9A96E}
.hero-subtitle{font-family:'Playfair Display','Noto Serif SC','STSong',serif;font-size:clamp(1.1rem,1.7vw,1.25rem);letter-spacing:0.15em;text-transform:uppercase;color:#1A56DB;margin-bottom:1rem;font-weight:600}
.hero h1{font-size:clamp(2.4rem,5.5vw,4.5rem);margin-bottom:1.5rem;color:#1A1A2E}
.hero h1 .thin{font-weight:300;color:#4A4A62}
.hero p{font-size:clamp(1.15rem,2vw,1.35rem);max-width:640px;margin:0 auto 2.5rem;color:#3A3A50;line-height:1.8}
.hero-cta{
  display:inline-block;padding:0.95rem 2.8rem;
  background:#1A56DB;color:#FFFFFF;border:none;
  text-decoration:none;font-size:1.05rem;letter-spacing:0.1em;text-transform:uppercase;
  transition:all 0.4s;position:relative;border-radius:3px;
}
.hero-cta:hover{background:#1550C0;transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,86,219,0.3)}
.hero-cta span{position:relative;z-index:1}

/* ===== Page Hero (sub pages) ===== */
.page-hero{
  min-height:45vh;display:flex;align-items:center;justify-content:center;
  text-align:center;position:relative;overflow:hidden;
  background:#F0F2F8;
  padding:5rem 5%;
}
.page-hero .section-inner{position:relative;z-index:2;margin-bottom:2vh}

/* ===== Factory ===== */
.factory{background:#FFFFFF}
.factory-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.factory .section-header{text-align:left}
body.rtl .factory .section-header{text-align:right}
.factory .section-header p{color:#5A5A72;max-width:480px}
.factory-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2rem}
.stat-item{text-align:center;padding:1.5rem;background:#FAFAFA;border-radius:4px;position:relative;border:1px solid #EEEEF2}
.stat-item::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:20px;height:2px;background:#1A56DB;border-radius:1px}
.stat-num{font-family:'Playfair Display','Georgia',serif;font-size:1.8rem;font-weight:700;color:#1A56DB;display:block}
.stat-label{font-size:0.8rem;color:#5A5A72;letter-spacing:0.06em;text-transform:uppercase;margin-top:0.3rem}
.factory-image{aspect-ratio:4/3;border-radius:6px;position:relative;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.04);border:1px solid #EEEEF2}
.factory-image img{width:100%;height:100%;object-fit:cover;display:block}

/* ===== Products ===== */
.products{background:#F5F5F8}
.products .section-header{text-align:center}
.products .section-header p{color:#5A5A72;max-width:560px;margin:0 auto}
.product-showcase{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:3rem}
.product-card{
  position:relative;padding:2.5rem 2rem;background:#FFFFFF;
  border-radius:6px;box-shadow:0 2px 16px rgba(0,0,0,0.04);
  border:1px solid #EEEEF2;transition:all 0.4s;overflow:hidden;
}
.product-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,0.08);border-color:#C9A96E}
.product-card.card-accent{border-top:3px solid #1A56DB}
.product-icon{width:64px;height:64px;margin-bottom:1.5rem;opacity:0.8}
.product-icon svg path, .product-icon svg circle, .product-icon svg rect, .product-icon svg line{stroke:#1A56DB}
.product-card h3{margin-bottom:0.8rem;font-size:1.1rem;color:#1A1A2E}
.product-card p{color:#5A5A72;font-size:0.9rem;line-height:1.7}
.product-tag{display:inline-block;padding:0.3rem 0.8rem;font-size:0.7rem;letter-spacing:0.08em;text-transform:uppercase;background:rgba(26,86,219,0.06);color:#1A56DB;border-radius:2px;margin-top:1rem;font-weight:600}

.collar-detail{margin-top:5rem;display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.collar-visual{aspect-ratio:1;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.collar-rings{position:relative;width:280px;height:280px}
.collar-ring{position:absolute;border-radius:50%;border:1px solid rgba(26,86,219,0.12);top:50%;left:50%;transform:translate(-50%,-50%)}
.collar-ring:nth-child(1){width:280px;height:280px;border-color:rgba(26,86,219,0.08)}
.collar-ring:nth-child(2){width:220px;height:220px;border-color:rgba(201,169,110,0.18)}
.collar-ring:nth-child(3){width:160px;height:160px;border-color:rgba(26,86,219,0.15)}
.collar-ring:nth-child(4){width:100px;height:100px;border-color:rgba(201,169,110,0.25)}
.collar-ring:nth-child(5){width:50px;height:50px;background:rgba(26,86,219,0.05);border-color:#1A56DB}
.collar-ring:nth-child(6){width:16px;height:16px;background:#1A56DB;border:none}
.detail-list{list-style:none;display:flex;flex-direction:column;gap:1.2rem}
.detail-list li{padding-left:1.5rem;position:relative;color:#4A4A62;font-size:0.95rem;line-height:1.6}
body.rtl .detail-list li{padding-left:0;padding-right:1.5rem}
.detail-list li::before{content:'';position:absolute;left:0;top:0.55rem;width:6px;height:6px;background:#C9A96E;transform:rotate(45deg)}
body.rtl .detail-list li::before{left:auto;right:0}
.detail-list li strong{color:#1A1A2E}

/* ===== Quality ===== */
.quality{background:#FFFFFF}
.quality .section-header{text-align:center}
.quality-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:3rem}
.quality-item{padding:2rem;text-align:center;background:#FAFAFA;border-radius:6px;border:1px solid #EEEEF2;transition:all 0.4s}
.quality-item:hover{box-shadow:0 4px 20px rgba(0,0,0,0.04);border-color:rgba(26,86,219,0.15)}
.quality-num{font-family:'Playfair Display','Georgia',serif;font-size:3rem;font-weight:300;color:rgba(26,86,219,0.08);line-height:1}
.quality-item h3{margin:0.8rem 0 0.5rem;font-size:1rem;letter-spacing:0.06em;color:#1A1A2E}
.quality-item p{color:#5A5A72;font-size:0.85rem;line-height:1.7}

/* ===== Contact ===== */
.contact{background:#F5F5F8}
.contact .section-header{text-align:center}
.contact .section-header p{color:#5A5A72;max-width:480px;margin:0 auto}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem;margin-top:3rem}
.contact-card{padding:2rem;text-align:center;background:#FFFFFF;border-radius:6px;border:1px solid #EEEEF2;transition:all 0.4s}
.contact-card:hover{box-shadow:0 4px 20px rgba(0,0,0,0.04);border-color:rgba(201,169,110,0.25)}
.contact-icon{width:40px;height:40px;margin:0 auto 1rem;opacity:0.7}
.contact-card h4{font-family:'Playfair Display','Noto Serif SC','STSong',serif;font-size:0.85rem;letter-spacing:0.08em;text-transform:uppercase;color:#1A56DB;margin-bottom:0.5rem}
.contact-card p{color:#4A4A62;font-size:0.9rem}

/* ===== Footer ===== */
.footer{text-align:center;padding:3rem 2rem;background:#FFFFFF;border-top:1px solid #EEEEF2;font-size:0.8rem;color:#6B6B80}

/* ===== Scroll indicator ===== */
.scroll-indicator{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:0.5rem;opacity:0.6;animation:bounce 2s infinite;z-index:2}
.scroll-indicator span{font-size:0.85rem;letter-spacing:0.12em;text-transform:uppercase;color:#1A56DB;font-weight:600}
.scroll-indicator .arrow{width:1px;height:24px;background:linear-gradient(180deg,#1A56DB,transparent)}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ===== Fade-in Animation ===== */
.fade-in{opacity:0;transform:translateY(30px);transition:all 0.8s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:768px){
  .navbar{padding:1rem 1.2rem}
  .navbar.scrolled{padding:0.7rem 1.2rem}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#FFFFFF;padding:1.5rem;gap:1rem;box-shadow:0 8px 24px rgba(0,0,0,0.06);border-bottom:1px solid #EEEEF2}
  .nav-links.open{display:flex}
  .nav-links a{color:#1A1A2E}
  .menu-toggle{display:block}
  .factory-grid{grid-template-columns:1fr;gap:2rem}
  .collar-detail{grid-template-columns:1fr;gap:2rem}
  .collar-visual{order:-1}
  .factory-stats{grid-template-columns:repeat(3,1fr);gap:0.8rem}
  .stat-item{padding:1rem}
  .stat-num{font-size:1.4rem}
  section{padding:4rem 1.2rem}
}