.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-height);background:#fffffff7;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:all .3s}.navbar.scrolled{border-bottom-color:var(--color-border);box-shadow:0 1px 8px #0000000f}.nav-inner{display:flex;align-items:center;height:100%;gap:24px}.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}.logo-img{width:auto;height:44px;object-fit:contain}.logo-text{font-size:16px;font-weight:600;color:var(--color-text-dark);white-space:nowrap;letter-spacing:1px}.nav-links{display:flex;align-items:center;gap:22px;flex:1;justify-content:center}.nav-links a{font-size:13px;color:var(--color-text);white-space:nowrap;padding:8px 16px;border-radius:4px;transition:all .2s;letter-spacing:1px;line-height:1.4}.nav-links a:hover{color:var(--color-brand)}.nav-links a.active{color:#d4b35a;font-weight:600}.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}.nav-phone{font-size:13px;color:var(--color-text);white-space:nowrap}.nav-cta{flex-shrink:0;padding:10px 22px!important;font-size:13px!important}.nav-cta-mobile{display:none}.menu-toggle{display:none;flex-direction:column;align-items:center;gap:4px;background:none;border:none;padding:6px 10px;cursor:pointer}.menu-toggle small{font-size:10px;color:var(--color-text);margin-top:2px}.menu-toggle span{display:block;width:22px;height:2px;background:var(--color-text-dark);transition:all .3s;border-radius:1px}.menu-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.menu-toggle.open span:nth-child(2){opacity:0}.menu-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media (max-width: 1024px){.nav-links{position:absolute;top:var(--nav-height);right:8px;width:200px;z-index:9999;background:#fff;flex-direction:column;flex:none;padding:8px 0;gap:0;display:none;border-radius:12px;box-shadow:0 8px 40px #00000026;border:1px solid rgba(0,0,0,.06)}.nav-links.open{display:flex!important}.nav-links li{width:100%;list-style:none}.nav-links a{display:block;padding:12px 20px;font-size:14px;color:var(--color-text-dark);width:100%;font-weight:400;text-decoration:none;transition:background .2s}.nav-links a:hover{background:var(--color-brand-light)}.nav-links a.active{color:var(--color-brand);font-weight:600}.nav-cta{display:none}.menu-toggle{display:flex;margin-left:auto}.menu-toggle span{background:var(--color-text-dark)}.menu-toggle small{color:var(--color-text);font-size:10px;margin-top:2px;font-weight:400}.logo-text{font-size:13px}}.mobile-bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:#fff;border-top:1px solid #eee;padding:8px 8px 44px;display:flex;justify-content:space-around;align-items:center}.mobile-bottom-nav a,.mobile-bottom-nav button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 14px;font-size:13px;color:var(--color-text-light);text-decoration:none;transition:color .2s;border-radius:6px;white-space:nowrap;text-align:center;background:none;border:none;cursor:pointer;font-family:inherit}.mobile-bottom-nav a.active,.mobile-bottom-nav button.active{color:var(--color-brand);font-weight:600}.case-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;background:#0006;display:flex;align-items:flex-end;justify-content:center;padding-bottom:100px}.case-submenu{background:#fff;border-radius:16px 16px 0 0;padding:24px 28px 40px;width:100%;max-width:500px;text-align:center}.case-submenu-header{font-size:16px;font-weight:600;color:var(--color-text-dark);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #eee}.case-submenu a{display:block;padding:14px;font-size:16px;color:var(--color-text);text-decoration:none;border-radius:8px;margin-bottom:4px;transition:all .2s}.case-submenu a:hover,.case-submenu a.active{background:var(--color-brand-light);color:var(--color-brand);font-weight:600}@media (min-width: 1025px){.mobile-bottom-nav,.case-overlay{display:none}}.footer{background:var(--color-bg-warm);padding:36px 0;border-top:1px solid var(--color-border);text-align:center}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding-bottom:36px;max-width:700px;margin:0 auto}.footer-col h4{font-size:15px;font-weight:600;color:var(--color-text-dark);margin-bottom:12px}.footer-col p,.footer-col a{display:block;font-size:13px;color:var(--color-text-light);line-height:2;transition:color .2s}.footer-col a:hover{color:var(--color-brand)}.footer-tel{font-size:20px;font-weight:600;color:var(--color-brand)!important;margin:4px 0}.footer-bottom{border-top:1px solid var(--color-border);padding:16px 0;background:#fff}.footer-bottom-inner{display:flex;justify-content:space-between;font-size:12px;color:var(--color-text-muted)}@media (max-width: 768px){.footer-grid{grid-template-columns:1fr;gap:32px;text-align:center}.footer-bottom-inner{flex-direction:column;gap:6px;text-align:center}}.ai-chat-panel{position:fixed;bottom:72px;right:24px;z-index:1001;width:380px;max-width:calc(100vw - 32px);height:520px;max-height:calc(100vh - 160px);background:#fff;border-radius:16px;box-shadow:0 16px 64px #0000002e;display:flex;flex-direction:column;overflow:hidden}.ai-chat-header{background:linear-gradient(135deg,#1b4d3e,#0d3328);color:#fff;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}.ai-chat-title{font-size:16px;font-weight:600;display:block}.ai-chat-status{font-size:12px;opacity:.8;font-weight:400}.ai-chat-status:before{content:"";display:inline-block;width:7px;height:7px;background:#4ade80;border-radius:50%;margin-right:6px}.ai-chat-close{background:none;border:none;color:#fff;font-size:18px;cursor:pointer;padding:4px 8px;opacity:.8}.ai-chat-close:hover{opacity:1}.ai-chat-body{flex:1;overflow-y:auto;padding:16px;background:#fafafa;display:flex;flex-direction:column;gap:12px}.ai-chat-empty{text-align:center;color:#999;margin-top:60px;font-size:14px;line-height:2}.ai-msg{max-width:85%;padding:10px 16px;border-radius:12px;font-size:14px;line-height:1.7;white-space:pre-wrap;word-break:break-word}.ai-msg.user{align-self:flex-end;background:#1b4d3e;color:#fff;border-bottom-right-radius:4px}.ai-msg.assistant{align-self:flex-start;background:#fff;color:#333;box-shadow:0 1px 4px #00000014;border-bottom-left-radius:4px}.ai-chat-footer{display:flex;padding:12px 16px;border-top:1px solid #eee;gap:8px;background:#fff}.ai-chat-footer input{flex:1;border:1px solid #e0e0e0;border-radius:20px;padding:10px 16px;font-size:14px;outline:none}.ai-chat-footer input:focus{border-color:#1b4d3e}.ai-chat-footer button{background:#1b4d3e;color:#fff;border:none;border-radius:20px;padding:10px 20px;font-size:14px;cursor:pointer;transition:background .3s}.ai-chat-footer button:hover{background:#0d3328}.ai-chat-footer button:disabled{background:#ccc;cursor:not-allowed}@media (max-width: 480px){.ai-chat-panel{right:8px;left:8px;width:auto;height:420px;bottom:100px}.ai-chat-btn{right:16px;bottom:100px;padding:12px 18px;font-size:14px}.ai-chat-footer{padding:10px 12px}.ai-chat-footer input{padding:8px 12px;font-size:13px}.ai-chat-footer button{padding:8px 16px;font-size:13px}}:root{--color-brand: #1B4D3E;--color-brand-dark: #0D3328;--color-brand-light: #E8F0EC;--color-brand-gold: #B8963E;--color-text-dark: #1A1A1A;--color-text: #4A4A4A;--color-text-light: #6B6B6B;--color-text-muted: #757575;--color-bg: #F5F5F5;--color-bg-light: #F9FAFB;--color-bg-warm: #FAFAF8;--color-bg-white: #FFFFFF;--color-border: #E8E8E8;--color-footer: #141414;--font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;--max-width: 1200px;--nav-height: 72px;--shadow-card: 0 2px 16px rgba(0,0,0,.06);--shadow-hover: 0 8px 32px rgba(0,0,0,.1);--shadow-btn: 0 4px 16px rgba(27,77,62,.2);--radius-sm: 4px;--radius: 8px;--radius-lg: 16px}.skip-link{position:absolute;top:-100px;left:16px;background:var(--color-brand);color:#fff;padding:12px 24px;border-radius:var(--radius-sm);font-size:14px;z-index:9999;transition:top .2s}.skip-link:focus{top:8px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{font-family:var(--font-family);font-size:15px;line-height:1.7;color:var(--color-text);background:var(--color-bg-white)}a{text-decoration:none;color:inherit}ul,ol{list-style:none}img{max-width:100%;display:block}button{cursor:pointer;border:none;font-family:inherit}input,textarea{font-family:inherit;border:none;outline:none}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:90px 0}.section-title{font-size:32px;font-weight:600;color:var(--color-text-dark);text-align:center;margin-bottom:10px;letter-spacing:2px}.section-subtitle{font-size:15px;color:var(--color-text-light);text-align:center;margin-bottom:56px;letter-spacing:1px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 32px;font-size:14px;font-weight:500;border-radius:var(--radius-sm);transition:all .3s ease;letter-spacing:1px;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--color-brand),#2D6B54);color:#fff;box-shadow:var(--shadow-btn)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px #1b4d3e4d}.btn-outline{border:1.5px solid var(--color-brand);color:var(--color-brand);background:transparent}.btn-outline:hover{background:var(--color-brand);color:#fff}.btn-gold{background:linear-gradient(135deg,var(--color-brand-gold),#D4B35A);color:#fff;box-shadow:0 4px 16px #b8963e40}.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 24px #b8963e66}.page-banner{padding:120px 0 52px;background:linear-gradient(160deg,#1b4d3e,#0d3328);text-align:center}.page-banner h1{font-size:34px;font-weight:700;color:#fff;letter-spacing:2px}.page-banner p{font-size:15px;color:#ffffffa6;margin-top:8px}