/* ============================================
   杭州现代技工学校 - 公共基础样式
   全站共用：变量、重置、通用组件、导航、页脚、悬浮工具
   ============================================ */

/* --- 变量 --- */
:root {
  --red: #D70F1A;
  --red-dark: #B20D16;
  --red-light: #E8393F;
  --red-bg: #FFF0F0;
  --gold: #F59E0B;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --text: #333333;
  --text2: #666666;
  --text3: #999999;
  --bg: #F8F9FA;
  --border: #E8E8E8;
  --divider: #F0F0F0;
  --shadow: 0 0.125rem 0.5rem rgba(0,0,0,0.08);
  --shadow-lg: 0 0.5rem 1.5rem rgba(0,0,0,0.12);
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --transition: 0.3s ease;
}

/* --- 重置 --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{cursor:pointer;border:none;outline:none;font-family:inherit;background:none}

/* --- 通用 --- */
.container{max-width:90%;margin:0 auto;padding:0 1.25rem}

.section-title{text-align:center;margin-bottom:3rem}
.section-title h2{font-size:2.25rem;font-weight:700;color:var(--black);display:inline-block;position:relative;padding-bottom:0.875rem}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:3.125rem;height:0.1875rem;background:var(--red);border-radius:0.125rem}
.section-title p{font-size:1rem;color:var(--text2);margin-top:1rem}

.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.75rem 2rem;font-size:1rem;font-weight:500;border-radius:var(--radius);transition:all var(--transition)}
.btn-primary{background:linear-gradient(135deg,var(--red),var(--red-dark));background-size:200% 100%;color:var(--white);box-shadow:0 0.25rem 0.9375rem rgba(215,15,26,0.3);border-radius:3.125rem;position:relative;overflow:hidden;animation:btnShine 3s ease-in-out infinite,btnBreathe 2.5s ease-in-out infinite}
.btn-primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);animation:btnSweep 3s ease-in-out infinite}
.btn-primary:hover{background:linear-gradient(135deg,var(--red-light),var(--red));background-size:200% 100%;transform:translateY(-3px) scale(1.03);box-shadow:0 0.5rem 1.75rem rgba(215,15,26,0.45);padding-right:2.5rem}
.btn-primary:hover .btn-arrow{transform:translateX(6px);opacity:1}
.btn-arrow{display:inline-block;transition:all 0.35s cubic-bezier(0.34,1.56,0.64,1);font-size:0.875rem;opacity:0.85}
@keyframes btnShine{0%,100%{background-position:0 0}50%{background-position:100% 0}}
@keyframes btnSweep{0%,100%{left:-100%}50%{left:100%}}
@keyframes btnBreathe{0%,100%{box-shadow:0 0.25rem 0.9375rem rgba(215,15,26,0.3)}50%{box-shadow:0 0.5rem 1.75rem rgba(215,15,26,0.5)}}
.btn-outline{border:2px solid var(--red);color:var(--red)}
.btn-outline:hover{background:linear-gradient(135deg,var(--red),var(--red-dark));color:var(--white);border-color:transparent}
.btn-white{background:var(--white);color:var(--red)}
.btn-white:hover{background:var(--gold);color:var(--white)}
.btn-outline-white{border:2px solid var(--white);color:var(--white)}
.btn-outline-white:hover{background:var(--white);color:var(--red)}

/* --- 动画 --- */
@keyframes fadeInUp{from{opacity:0;transform:translateY(1.875rem)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes bounce{0%,20%,50%,80%,100%{transform:translateY(0)}40%{transform:translateY(-0.75rem)}60%{transform:translateY(-0.375rem)}}

.fade-in{opacity:0;transform:translateY(1.875rem);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

.fade-up{animation:fadeInUp 1s ease both}
.delay-1{animation-delay:0.2s}
.delay-2{animation-delay:0.4s}
.delay-3{animation-delay:0.6s}

.bounce{animation:bounce 2s infinite}

/* ==================== 1. 顶部导航 ==================== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1.25rem 0;transition:all var(--transition)}
.header.scrolled{background:rgba(255,255,255,0.75);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 2px 20px rgba(0,0,0,0.08);padding:0.75rem 0}
.header-inner{display:flex;align-items:center;justify-content:space-between}

.logo{display:flex;align-items:center;flex-shrink:0}
.logo-img{height:4.25rem;width:auto;display:block;filter:brightness(0) invert(1);transition:filter var(--transition)}
.scrolled .logo-img{filter:none}

.nav-menu{display:flex;align-items:center;gap:0.25rem}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:flex;align-items:center;gap:0.25rem;padding:0.625rem 1.125rem;font-size:0.875rem;font-weight:500;color:rgba(255,255,255,0.85);border-radius:1.5rem;transition:all 0.3s ease;white-space:nowrap;position:relative;letter-spacing:0.5px}
.nav-menu>li>a::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%) scaleX(0);width:1.25rem;height:2px;background:var(--white);border-radius:1px;transition:transform 0.3s ease}
.scrolled .nav-menu>li>a{color:var(--text)}
.scrolled .nav-menu>li>a::after{background:var(--red)}
.nav-menu>li>a:hover,.nav-menu>li:hover>a{color:var(--white);background:rgba(255,255,255,0.15)}
.nav-menu>li>a:hover::after,.nav-menu>li:hover>a::after{transform:translateX(-50%) scaleX(1)}
.scrolled .nav-menu>li>a:hover,.scrolled .nav-menu>li:hover>a{color:var(--red);background:rgba(215,15,26,0.08)}
.scrolled .nav-menu>li>a:hover::after,.scrolled .nav-menu>li:hover>a::after{transform:translateX(-50%) scaleX(1)}

/* 当前激活页样式 */
.nav-menu>li>a.active{color:var(--white);background:rgba(255,255,255,0.2);font-weight:600}
.nav-menu>li>a.active::after{transform:translateX(-50%) scaleX(1)}
.scrolled .nav-menu>li>a.active{color:var(--red);background:rgba(215,15,26,0.1);font-weight:600}
.scrolled .nav-menu>li>a.active::after{transform:translateX(-50%) scaleX(1);background:var(--red)}
.nav-menu .arrow{width:0.625rem;height:0.625rem;transition:transform 0.3s ease;opacity:0.5}
.nav-menu>li:hover .arrow{transform:rotate(180deg);opacity:1}

/* 二级下拉 */
.submenu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(0.5rem);min-width:10rem;background:rgba(255,255,255,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:0.75rem;box-shadow:0 0.5rem 2rem rgba(0,0,0,0.12);padding:0.5rem 0;opacity:0;visibility:hidden;transition:all 0.3s ease;border:1px solid rgba(255,255,255,0.5)}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0.25rem)}
.submenu a{display:block;padding:0.625rem 1.25rem;font-size:0.875rem;color:var(--text);transition:all 0.2s ease;white-space:nowrap;border-radius:0.375rem;margin:0 0.375rem}
.submenu a:hover{color:var(--red);background:rgba(215,15,26,0.08)}

/* 汉堡按钮 */
.hamburger{display:none;flex-direction:column;gap:0.3125rem;padding:0.375rem;width:2.25rem;height:2.25rem;align-items:center;justify-content:center;border-radius:0.375rem;transition:background 0.2s ease}
.hamburger span{display:block;width:1.25rem;height:2px;background:var(--white);border-radius:2px;transition:all 0.3s ease}
.scrolled .hamburger span{background:var(--red)}
.hamburger:hover{background:rgba(255,255,255,0.15)}
.scrolled .hamburger:hover{background:rgba(215,15,26,0.08)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
.hamburger.active span:nth-child(2){opacity:0;transform:translateX(-4px)}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}

/* ==================== 8. 底部版权 ==================== */
.footer{background:#1A1A1A;color:rgba(255,255,255,0.7)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1.2fr 1.2fr 1fr;gap:2.5rem;padding:3.75rem 0 2.5rem}

.footer-logo{display:flex;align-items:center;margin-bottom:1rem}
.footer-logo-img{height:4.5rem;width:auto;display:block}
.footer-name{font-size:1.125rem;font-weight:700;color:var(--white)}
.footer-name-en{font-size:0.625rem;color:rgba(255,255,255,0.5)}
.footer-brand p{font-size:0.8125rem;line-height:1.8;color:rgba(255,255,255,0.5);max-width:17.5rem}

.footer-col h4{font-size:1rem;font-weight:600;color:var(--white);margin-bottom:1.25rem;padding-left:0.875rem;border-left:3px solid var(--red)}

.footer-contact{display:flex;flex-direction:column;gap:0.75rem}
.footer-contact li{font-size:0.8125rem;line-height:1.5}
.footer-contact li i{width:1rem;text-align:center;margin-right:0.375rem;color:var(--red-light)}

.footer-links{display:flex;flex-direction:column;gap:0.5rem}
.footer-links a{font-size:0.8125rem;color:rgba(255,255,255,0.5);transition:color 0.2s}
.footer-links a:hover{color:var(--red)}
.footer-links-2col{display:grid;grid-template-columns:1fr 1fr;column-gap:1rem;row-gap:0.5rem}

.footer-qr{text-align:left}
.footer-qr h4{text-align:left}
.qr-wrap{display:flex;gap:1.25rem}
.qr-box{display:inline-block;text-align:center;margin-bottom:0.5rem}
.qr-box p{font-size:0.75rem;color:rgba(255,255,255,0.6);margin-top:0.5rem}
.qr-tip{font-size:0.75rem;color:rgba(255,255,255,0.4);margin-top:0.5rem}

.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:1.25rem 0}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:0.5rem;font-size:0.8125rem;color:rgba(255,255,255,0.4)}
.footer-bottom a{color:rgba(255,255,255,0.4)}
.footer-bottom a:hover{color:var(--red)}

/* ==================== 悬浮工具 ==================== */
.float-tools{position:fixed;right:1.25rem;bottom:7.5rem;z-index:999;display:flex;flex-direction:column;gap:0.5rem}
.float-btn{width:3rem;height:3rem;background:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--red);box-shadow:var(--shadow);transition:all var(--transition);position:relative;overflow:visible}
.float-btn:hover{background:linear-gradient(135deg,var(--red-light),var(--red));color:var(--white);transform:translateX(-4px);box-shadow:var(--shadow-lg)}
.float-phone-num{position:absolute;right:3.625rem;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,var(--red),var(--red-dark));color:var(--white);font-size:0.9375rem;font-weight:600;white-space:nowrap;padding:0.5rem 1.125rem;border-radius:1.25rem;opacity:0;visibility:hidden;pointer-events:none;transition:all var(--transition);animation:tagBreathe 2.5s ease-in-out infinite}
.float-phone:hover .float-phone-num{opacity:1;visibility:visible}
.float-phone:hover{transform:none;border-radius:1.5rem}
.float-btn-wrap{position:relative}
.float-wechat-qr{position:absolute;right:3.75rem;top:50%;transform:translateY(-50%);background:var(--white);padding:0.5rem;border-radius:0.5rem;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;pointer-events:none;transition:all var(--transition);z-index:1001;width:9.5rem;}
.float-wechat-qr img{display:block;border-radius:0.25rem;width:8.5rem; }
.float-btn-wrap:hover .float-wechat-qr{opacity:1;visibility:visible}
.float-wechat:hover{transform:none;border-radius:1.5rem}
.float-top{background:linear-gradient(135deg,var(--red),var(--red-dark));color:var(--white);animation:tagBreathe 2.5s ease-in-out infinite}
.float-top:hover{background:var(--red-dark)}

.copy-toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,0.8);color:var(--white);padding:0.75rem 1.75rem;border-radius:var(--radius);font-size:0.875rem;z-index:9999;opacity:0;visibility:hidden;transition:opacity 0.3s}
.copy-toast.show{opacity:1;visibility:visible}

/* ==================== 响应式（公共部分） ==================== */
@media(max-width:1024px){
  .container{max-width:100%;padding:0 0.9375rem}
  .logo-img{height:3.25rem}
  .nav-menu{display:none}
  .nav-menu.active{display:flex;flex-direction:column;position:fixed;top:0;right:0;width:75%;max-width:20rem;height:100vh;background:rgba(255,255,255,0.98);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);padding:0;z-index:1002;gap:0;overflow-y:auto;box-shadow:-4px 0 24px rgba(0,0,0,0.1);animation:slideIn 0.3s ease}
  @keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
  /* 导航遮罩层 */
  .nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.8);z-index:1001;opacity:0;visibility:hidden;transition:all 0.3s ease}
  .nav-overlay.active{opacity:1;visibility:visible}
  /* 移动端导航头部 */
  .nav-menu.active::before{content:'导航菜单';display:block;width:100%;padding:1.25rem 1.5rem;font-size:1rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--red),var(--red-dark));letter-spacing:2px;flex-shrink:0;box-sizing:border-box}
  .nav-menu.active>li{width:92%;align-self:center; margin-top: 12px;}
  .nav-menu.active>li>a{color:var(--text);padding:0.875rem 1.5rem;font-size:0.9375rem;font-weight:500;border-bottom:1px solid var(--divider);transition:all 0.2s ease;display:flex;align-items:center;justify-content:space-between}
  .nav-menu.active>li>a:hover,.nav-menu.active>li:hover>a{color:var(--red);background:rgba(215,15,26,0.06)}
  .nav-menu.active>li>a.active{color:var(--red);background:rgba(215,15,26,0.08);font-weight:600}
  .nav-menu.active .arrow{width:1rem;height:1rem;opacity:0.4;transition:transform 0.3s ease}
  .has-sub.active>a .arrow{transform:rotate(180deg);opacity:0.8}
  .nav-menu.active .submenu{position:static;transform:none;opacity:1;visibility:visible;background:none;backdrop-filter:none;box-shadow:none;border:none;padding:0;border-radius:0;display:none; padding-top: 8px;}
  .nav-menu.active .submenu a{padding:0.625rem 1.5rem 0.625rem 2.25rem;font-size:0.8125rem;color:var(--text2);border-bottom:1px solid var(--divider);position:relative;transition:all 0.2s ease}
  .nav-menu.active .submenu a::before{content:'';position:absolute;left:1.5rem;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--red);opacity:0.4}
  .nav-menu.active .submenu a:hover{color:var(--red);background:rgba(215,15,26,0.04); border-radius: 0;}
  .nav-menu.active>li>a::after{display:none}
  .has-sub.active>.submenu{display:block}
  .hamburger{display:flex}

  .section-title{margin-bottom:2.25rem}
  .section-title h2{font-size:1.875rem}

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

@media(max-width:768px){
  .section-title{margin-bottom:1.5rem}
  .section-title h2{font-size:1.5rem}
  .section-title p{font-size:0.875rem;margin-top:0.625rem}

  .footer-grid{grid-template-columns:1fr;gap:1.5rem;padding:2rem 0 1.25rem}
  .footer-qr{display:none}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}

@media(max-width:480px){
  .section-title h2{font-size:1.375rem}
  .float-tools{right:0.75rem;bottom:5rem}
  .float-btn{width:2.625rem;height:2.625rem}

  .qr-wrap{align-items:center}
}


.xrpagination {text-align:center}
.xrpagination .pagination {display:flex; justify-content: center;}
.xrpagination .pagination li a {display:block; padding:3px 12px;  border:1px solid #ccc;}
.xrpagination .pagination li.active a  {border-color:var(--red); background-color:var(--red); color:#fff;}
.xrpagination .pagination li a:hover {border-color:var(--red); background-color:var(--red); color:#fff; border-left:1px solid #fff;}
.xrpagination .pagination li:first-child a {border-radius:5px 0 0 5px;}
.xrpagination .pagination li:last-child a {border-radius:0 5px 5px 0;}