:root{--primary-color:#26A9E0;--secondary-color:#FFFFFF;--btn-login-color:#EA7C07;--header-offset:122px;--header-top-bg:#0E5A7A;--main-nav-bg:#135E80;--nav-link-color:#FFFFFF;--nav-link-hover-bg:#1B7BA6;--body-bg:#F5F7FA;--text-color:#333333;--footer-bg:#0D3B4F;--footer-text:#D4EAF5;--footer-link:#B8DDF0}.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background-color:#0E5A7A;box-shadow:0 2px 8px rgba(0,0,0,0.15);font-family:'Arial',sans-serif}.site-header *{box-sizing:border-box}.header-top{background-color:var(--header-top-bg);width:100%}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 30px}.logo{font-size:32px;font-weight:900;color:#FFFFFF;text-decoration:none;letter-spacing:2px;text-transform:uppercase;display:inline-block;padding:14px 0;font-style:italic;text-shadow:2px 2px 4px rgba(0,0,0,0.2)}.logo:hover{color:#FFFFFF;text-decoration:none}.desktop-nav-buttons{display:flex;align-items:center;gap:10px}.btn{display:inline-block;text-decoration:none!important;border-radius:6px;font-weight:700;font-size:15px;line-height:1;text-align:center;transition:all 0.3s ease;border:none;cursor:pointer;font-family:'Arial',sans-serif}.btn-download{background:linear-gradient(135deg,#34d1bf,#0fb8a4);color:#fff!important;padding:10px 18px;box-shadow:0 2px 8px rgba(15,184,164,0.3)}.btn-download:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(15,184,164,0.4)}.btn-login{background-color:var(--btn-login-color);color:#fff!important;padding:10px 20px;box-shadow:0 2px 8px rgba(234,124,7,0.3)}.btn-login:hover{background-color:#d47506;transform:translateY(-2px)}.btn-register{background:linear-gradient(135deg,#f7971e,#ffd200);color:#000!important;padding:10px 18px;box-shadow:0 2px 8px rgba(247,151,30,0.3)}.btn-register:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(247,151,30,0.5)}.main-nav{background-color:var(--main-nav-bg);width:100%;display:flex;min-height:52px}.nav-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:center;flex:1;padding:0 20px}.mobile-nav-header{display:none}.nav-menu{display:flex;align-items:center;justify-content:center;list-style:none;margin:0;padding:0;gap:0;flex-wrap:nowrap}.nav-menu li{list-style:none}.nav-link{display:block;color:var(--nav-link-color);text-decoration:none;font-size:14px;font-weight:600;padding:15px 12px;transition:background-color 0.3s ease,color 0.3s ease;border-bottom:3px solid transparent;white-space:nowrap}.nav-link:hover{color:#FFFFFF;background-color:var(--nav-link-hover-bg);text-decoration:none;border-bottom-color:#FFFFFF}.mobile-menu-overlay{display:none}.mobile-nav-buttons{display:none}body{padding-top:var(--header-offset)}.site-footer{background-color:var(--footer-bg);color:var(--footer-text);font-family:'Arial',sans-serif;padding:0;margin-top:60px}.footer-container{max-width:1200px;margin:0 auto;padding:50px 20px 30px;display:flex;flex-wrap:wrap;gap:30px}.footer-column{flex:1;min-width:220px}.footer-brand{flex:2;min-width:300px}.footer-logo{font-size:30px;font-weight:900;color:#FFFFFF;text-decoration:none;letter-spacing:2px;text-transform:uppercase;font-style:italic;display:inline-block;margin-bottom:15px;text-shadow:2px 2px 4px rgba(0,0,0,0.1)}.footer-logo:hover{color:#FFFFFF;text-decoration:none}.footer-desc{font-size:14px;line-height:1.7;color:#A0C4D9;margin:0;max-width:380px}.footer-title{color:#FFFFFF;font-size:18px;font-weight:700;margin:0 0 18px;padding-bottom:10px;border-bottom:2px solid rgba(255,255,255,0.1);text-transform:uppercase;letter-spacing:0.5px}.footer-nav ul{list-style:none;padding:0;margin:0}.footer-nav li{margin-bottom:10px}.footer-nav a{color:var(--footer-link);text-decoration:none;font-size:14px;transition:color 0.3s ease,padding-left 0.3s ease}.footer-nav a:hover{color:#FFFFFF;text-decoration:none;padding-left:5px}.footer-contact-list{list-style:none;padding:0;margin:0}.footer-contact-list li{margin-bottom:12px;font-size:14px;color:#A0C4D9}.contact-label{font-weight:600;color:#FFFFFF}.contact-link{color:#34d1bf;text-decoration:none}.contact-link:hover{text-decoration:underline;color:#6fe3d5}.btn-footer-contact{background:linear-gradient(135deg,#34d1bf,#0fb8a4);color:#fff!important;padding:10px 18px;display:inline-block;margin-top:5px}.btn-footer-contact:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(15,184,164,0.3)}.footer-bottom{background-color:rgba(0,0,0,0.1);padding:0;border-top:1px solid rgba(255,255,255,0.05)}.footer-bottom-container{display:flex;flex-direction:row;align-items:center;justify-content:space-between;padding:15px 20px;max-width:1200px;margin:0 auto}.footer-bottom-links{display:flex;align-items:center;flex-wrap:wrap;gap:5px}.footer-bottom-links a{color:#A0C4D9;text-decoration:none;font-size:13px}.footer-bottom-links a:hover{color:#FFFFFF;text-decoration:underline}.footer-separator{color:rgba(255,255,255,0.3);margin:0 3px;font-size:12px}.copyright{font-size:13px;color:#A0C4D9;margin:0}@media(max-width:768px){:root{--header-offset:110px}.site-header{min-height:auto}.header-container{width:100%;max-width:none;padding:0 15px;justify-content:space-between}.header-top{min-height:60px;display:flex;align-items:center}.logo{padding:10px 0;font-size:26px}.desktop-nav-buttons{display:none}.mobile-nav-buttons{display:flex;flex-direction:row;justify-content:center;align-items:center;gap:8px;background-color:var(--header-top-bg);padding:8px 15px;min-height:48px;width:100%;z-index:999;flex-wrap:wrap}.mobile-nav-buttons .btn{flex:1;padding:10px 8px;font-size:13px;text-align:center;max-width:150px}.main-nav{display:none;position:fixed;top:0;left:0;width:280px;height:100%;min-height:100vh;background-color:var(--main-nav-bg);flex-direction:column;z-index:1002;transform:translateX(-100%);transition:transform 0.3s ease;overflow-y:auto;box-shadow:2px 0 10px rgba(0,0,0,0.2)}.main-nav.active{display:flex;transform:translateX(0)}.main-nav .nav-container{width:100%;max-width:none;padding:0;display:flex;flex-direction:column;justify-content:flex-start;align-items:stretch}.mobile-nav-header{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;border-bottom:1px solid rgba(255,255,255,0.1)}.mobile-logo{font-size:26px;padding:0;letter-spacing:1px;text-shadow:none}.mobile-nav-close{color:#FFFFFF;font-size:22px;cursor:pointer;padding:5px;line-height:1}.mobile-nav-close:hover{color:#FFD200}.nav-menu{display:flex;flex-direction:column;list-style:none;margin:0;padding:0;width:100%;flex:1}.nav-menu li{width:100%;border-bottom:1px solid rgba(255,255,255,0.08)}.nav-link{display:block;color:#FFFFFF;font-size:15px;padding:15px 20px;border-bottom:none}.nav-link:hover{background-color:rgba(255,255,255,0.1);padding-left:25px}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.6);z-index:1001;backdrop-filter:blur(2px)}.mobile-menu-overlay.active{display:block}.site-footer{padding:0}.footer-container{width:100%;max-width:none;padding:30px 15px 20px;flex-direction:column;gap:20px}.footer-column{width:100%;min-width:auto;flex:1 1 auto}.footer-brand{flex:1 1 auto}.footer-bottom-container{flex-direction:column;text-align:center;gap:10px;padding:10px 15px}.footer-bottom-links{justify-content:center}.page-content img{max-width:100%!important;height:auto!important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden}}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}