:root{--yz-primary:#7F1D1D;--yz-primary-light:#991B1B;--yz-primary-dark:#650A0A;--yz-gold:#B8860B;--yz-gold-light:#DAA520;--yz-gold-soft:rgba(184,134,11,.08);--yz-bg:#FBF7F0;--yz-bg2:#fff;--yz-bg3:#F5F0E6;--yz-card:#fff;--yz-text:#2D1B1B;--yz-text-sec:#5C4040;--yz-text-muted:#8B6F6F;--yz-border:#E8DDD0;--yz-border-h:#A0AEC0;--yz-radius:12px;--yz-shadow:0 2px 8px rgba(30,58,95,.06);--yz-shadow-lg:0 8px 24px rgba(30,58,95,.1);--yz-font-h:Playfair Display, Georgia,"Times New Roman","Songti SC",serif;--yz-font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;--yz-t:.3s ease}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{font-family:var(--yz-font);font-size:16px;line-height:1.7;color:var(--yz-text);background:var(--yz-bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:var(--yz-t)}img{max-width:100%;height:auto;display:block}ul{list-style:none}
h1,h2,h3,h4{font-family:var(--yz-font-h);font-weight:700;line-height:1.25;color:var(--yz-text)}
.yz-container{max-width:1200px;margin:0 auto;padding:0 24px}
.yz-nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:14px 24px;background:rgba(244,246,248,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--yz-border);transition:var(--yz-t)}
.yz-nav.scrolled{background:rgba(244,246,248,.98);box-shadow:0 2px 12px rgba(0,0,0,.04)}
.yz-nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.yz-logo{display:flex;align-items:center;gap:10px;font-family:var(--yz-font-h);font-weight:700;font-size:1.15rem;color:var(--yz-primary)}
.yz-logo-icon{width:36px;height:36px;background:var(--yz-primary);border:2px solid var(--yz-gold);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--yz-gold);flex-shrink:0}
.yz-logo-icon svg{width:18px;height:18px}
.yz-nav-links{display:flex;gap:32px}
.yz-nav-links a{font-size:.9rem;font-weight:500;color:var(--yz-text-sec);position:relative}
.yz-nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--yz-gold);transition:width .3s}
.yz-nav-links a:hover{color:var(--yz-primary)}.yz-nav-links a:hover::after{width:100%}
.yz-nav-cta{display:inline-flex;align-items:center;gap:6px;padding:9px 22px;background:var(--yz-gold);color:var(--yz-primary);border-radius:var(--yz-radius);font-size:.86rem;font-weight:700;cursor:pointer}
.yz-nav-cta:hover{background:var(--yz-gold-light);box-shadow:0 4px 12px rgba(200,169,81,.3)}
.yz-mobile-btn{display:none;background:none;border:none;cursor:pointer;color:var(--yz-primary);padding:4px}
/* HERO: 左右分栏 */
.yz-hero{position:relative;padding:130px 0 80px;overflow:hidden;background:linear-gradient(135deg,var(--yz-primary) 0%,var(--yz-primary-dark) 100%)}
.yz-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 80% 20%,rgba(200,169,81,.1) 0%,transparent 60%)}
.yz-hero-grid{position:relative;z-index:1;max-width:720px;margin:0 auto;text-align:center}
.yz-hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;background:rgba(200,169,81,.1);border:1px solid rgba(200,169,81,.3);border-radius:var(--yz-radius);font-size:.82rem;font-weight:600;color:var(--yz-gold-light);margin-bottom:24px}
.yz-hero-badge .yz-dot{width:6px;height:6px;background:var(--yz-gold);border-radius:50%;animation:yz-blink 2s infinite}
@keyframes yz-blink{0%,100%{opacity:1}50%{opacity:.3}}
.yz-hero h1{font-size:2.6rem;color:#fff;margin-bottom:20px;line-height:1.2}
.yz-hero h1 .yz-accent{color:var(--yz-gold)}
.yz-hero-desc{font-size:1rem;color:rgba(255,255,255,.6);margin-bottom:32px;max-width:480px;line-height:1.85}
.yz-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.yz-btn-cta{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:var(--yz-gold);color:var(--yz-primary);border-radius:var(--yz-radius);font-weight:700;font-size:.95rem;cursor:pointer;border:none;transition:var(--yz-t)}
.yz-btn-cta:hover{background:var(--yz-gold-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(200,169,81,.3)}
.yz-btn-ghost{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:var(--yz-radius);font-weight:500;font-size:.95rem;cursor:pointer}
.yz-btn-ghost:hover{border-color:var(--yz-gold);color:var(--yz-gold)}
.yz-hero-visual{position:relative}
.yz-hero-img{border:2px solid rgba(200,169,81,.2);border-radius:var(--yz-radius);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.yz-hero-img img{width:100%;height:360px;object-fit:cover}
.yz-hero-stat{position:absolute;bottom:-20px;left:-20px;background:var(--yz-gold);color:var(--yz-primary);padding:16px 24px;text-align:center;box-shadow:0 8px 24px rgba(200,169,81,.3)}
.yz-hero-stat strong{font-size:1.6rem;font-weight:700;display:block;font-family:var(--yz-font-h)}
.yz-hero-stat span{font-size:.72rem;font-weight:600}
/* TRUST BAR */
.yz-trust{padding:20px 0;background:var(--yz-bg2);border-bottom:1px solid var(--yz-border)}
.yz-trust-inner{display:flex;justify-content:center;gap:36px;flex-wrap:wrap}
.yz-trust-item{display:flex;align-items:center;gap:8px;font-size:.84rem;font-weight:500;color:var(--yz-text-sec)}
.yz-trust-item svg{color:var(--yz-gold);flex-shrink:0}
/* SECTION */
.yz-section{padding:90px 0}
.yz-section-alt{background:var(--yz-bg2)}
.yz-sec-header{margin-bottom:56px}
.yz-sec-tag{display:inline-block;padding:5px 16px;background:var(--yz-gold-soft);color:var(--yz-primary);border-left:3px solid var(--yz-gold);font-size:.78rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:14px}
.yz-sec-header h2{font-size:2.1rem;margin-bottom:12px}
.yz-sec-header h2 .yz-h-accent{color:var(--yz-gold)}
.yz-sec-header p{font-size:.92rem;color:var(--yz-text-muted);max-width:560px}
/* SERVICES: 左色条卡片 */
.yz-svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.yz-svc-card{padding:30px 26px;background:var(--yz-card);border:1px solid var(--yz-border);border-left:4px solid var(--yz-primary);border-radius:var(--yz-radius);transition:var(--yz-t);cursor:pointer}
.yz-svc-card:hover{border-left-color:var(--yz-gold);box-shadow:var(--yz-shadow-lg);transform:translateY(-4px)}
.yz-svc-icon{width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:var(--yz-gold-soft);border:1px solid var(--yz-border);border-radius:50%;margin-bottom:16px}
.yz-svc-icon svg{width:22px;height:22px;stroke:var(--yz-primary)}
.yz-svc-card h3{font-size:1.02rem;margin-bottom:8px}
.yz-svc-card p{font-size:.86rem;color:var(--yz-text-sec);line-height:1.75}
/* PROCESS: 竖向时间线 */
.yz-timeline{position:relative;padding-left:40px;max-width:700px;margin:0 auto}
.yz-timeline::before{content:'';position:absolute;left:15px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--yz-primary),var(--yz-gold),var(--yz-border))}
.yz-tl-item{position:relative;padding-bottom:40px}
.yz-tl-item:last-child{padding-bottom:0}
.yz-tl-num{position:absolute;left:-40px;top:0;width:32px;height:32px;background:var(--yz-primary);color:var(--yz-gold);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:700;font-family:var(--yz-font-h);border:2px solid var(--yz-gold);z-index:1}
.yz-tl-item h3{font-size:1.05rem;margin-bottom:8px}
.yz-tl-item p{font-size:.88rem;color:var(--yz-text-sec);line-height:1.75}
/* ABOUT: 左右分栏 */
.yz-about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.yz-about-img{position:relative;border-radius:var(--yz-radius);overflow:hidden;border:1px solid var(--yz-border);box-shadow:var(--yz-shadow-lg)}
.yz-about-img img{width:100%;height:400px;object-fit:cover}
.yz-about-badge{position:absolute;bottom:-16px;left:-16px;background:var(--yz-primary);color:#fff;padding:16px 22px;text-align:center;box-shadow:0 8px 24px rgba(30,58,95,.3);border:2px solid var(--yz-gold)}
.yz-about-badge strong{font-size:1.5rem;font-weight:700;display:block;font-family:var(--yz-font-h);color:var(--yz-gold)}
.yz-about-badge span{font-size:.72rem;opacity:.85}
.yz-about-text .yz-sec-tag{margin-bottom:12px}
.yz-about-text h2{font-size:1.85rem;margin-bottom:16px}
.yz-about-text p{color:var(--yz-text-sec);margin-bottom:14px;font-size:.9rem;line-height:1.85}
.yz-about-feats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.yz-about-feat{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--yz-gold-soft);border-radius:var(--yz-radius);font-size:.86rem;font-weight:500}
.yz-about-feat svg{width:18px;height:18px;color:var(--yz-primary);flex-shrink:0}
.yz-link{display:inline-flex;align-items:center;gap:6px;color:var(--yz-gold);font-weight:700;font-size:.9rem;margin-top:20px}
.yz-link:hover{gap:10px;color:var(--yz-gold-light)}
/* TESTIMONIALS */
.yz-testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.yz-testi-card{padding:28px 24px;background:var(--yz-card);border:1px solid var(--yz-border);border-radius:var(--yz-radius);transition:var(--yz-t);position:relative}
.yz-testi-card::before{content:'\201C';position:absolute;top:16px;right:24px;font-size:3rem;color:rgba(30,58,95,.06);font-family:Playfair Display, Georgia,serif;line-height:1}
.yz-testi-card:hover{box-shadow:var(--yz-shadow);transform:translateY(-3px)}
.yz-testi-stars{color:var(--yz-gold);font-size:.84rem;margin-bottom:14px;letter-spacing:2px}
.yz-testi-card>p{font-size:.86rem;color:var(--yz-text-sec);line-height:1.8;margin-bottom:16px}
.yz-testi-author{display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid var(--yz-border)}
.yz-ta-avatar{width:36px;height:36px;border-radius:50%;background:var(--yz-primary);color:var(--yz-gold);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;font-family:var(--yz-font-h)}
.yz-testi-author strong{font-size:.82rem;display:block;color:var(--yz-text)}
.yz-testi-author span{font-size:.72rem;color:var(--yz-text-muted)}
/* GALLERY */
.yz-gallery-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.yz-gallery-item{position:relative;border-radius:var(--yz-radius);overflow:hidden;aspect-ratio:4/3;cursor:pointer;border:1px solid var(--yz-border);transition:var(--yz-t)}
.yz-gallery-item:hover{transform:translateY(-4px);box-shadow:var(--yz-shadow-lg);border-color:var(--yz-gold)}
.yz-gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.yz-gallery-item:hover img{transform:scale(1.08)}
.yz-gallery-item::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(30,58,95,.4),transparent 50%);opacity:0;transition:opacity .3s}
.yz-gallery-item:hover::after{opacity:1}
.yz-lightbox{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.92);align-items:center;justify-content:center;padding:40px;cursor:zoom-out;backdrop-filter:blur(8px)}
.yz-lightbox.active{display:flex}
.yz-lightbox img{max-width:90%;max-height:90vh;border-radius:var(--yz-radius);box-shadow:0 20px 60px rgba(0,0,0,.5);object-fit:contain}
.yz-lightbox-close{position:absolute;top:20px;right:24px;background:rgba(255,255,255,.1);border:none;color:#fff;font-size:1.8rem;cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s}
.yz-lightbox-close:hover{background:rgba(255,255,255,.2)}
/* FAQ */
.yz-faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:60px}
.yz-faq-side{position:sticky;top:100px;align-self:start}
.yz-faq-side .yz-sec-tag{margin-bottom:12px}
.yz-faq-side h2{font-size:1.7rem;margin-bottom:14px}
.yz-faq-side p{font-size:.86rem;color:var(--yz-text-sec);line-height:1.8}
.yz-faq-list{display:flex;flex-direction:column;gap:10px}
.yz-faq-item{background:var(--yz-card);border:1px solid var(--yz-border);border-radius:var(--yz-radius);overflow:hidden;transition:var(--yz-t)}
.yz-faq-item:hover{border-color:var(--yz-primary)}
.yz-faq-item.active{border-color:var(--yz-gold)}
.yz-faq-q{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;cursor:pointer;font-weight:700;font-size:.9rem;color:var(--yz-text)}
.yz-faq-q svg{flex-shrink:0;stroke:var(--yz-primary);transition:transform .3s}
.yz-faq-item.active .yz-faq-q svg{transform:rotate(180deg)}
.yz-faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .3s,padding .3s;font-size:.86rem;color:var(--yz-text-sec);line-height:1.8}
.yz-faq-item.active .yz-faq-a{padding:0 22px 16px;max-height:240px}
/* RECOMMEND */
.yz-recommend{padding:70px 0}
.yz-recommend-grid{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.yz-recommend-grid a{display:inline-block;padding:8px 18px;background:var(--yz-card);border:1px solid var(--yz-border);border-radius:var(--yz-radius);font-size:.84rem;color:var(--yz-text-sec);transition:var(--yz-t);cursor:pointer}
.yz-recommend-grid a:hover{color:var(--yz-primary);border-color:var(--yz-gold);transform:translateY(-2px)}
/* CTA: 全宽 */
.yz-cta{padding:80px 0;background:var(--yz-primary);border-top:2px solid var(--yz-gold);text-align:center}
.yz-cta h2{font-size:1.9rem;color:#fff;margin-bottom:12px}
.yz-cta p{font-size:.92rem;color:rgba(255,255,255,.6);margin-bottom:30px}
/* FOOTER */
.yz-footer{padding:52px 0 0;background:var(--yz-primary-dark);color:rgba(255,255,255,.7)}
.yz-footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.yz-footer-desc{font-size:.82rem;color:rgba(255,255,255,.5);margin-top:14px;line-height:1.8;max-width:400px}
.yz-footer-nav h4{color:var(--yz-gold);font-size:.86rem;margin-bottom:16px;font-family:var(--yz-font-h)}
.yz-footer-nav li{margin-bottom:9px}
.yz-footer-nav a{font-size:.82rem;color:rgba(255,255,255,.5)}
.yz-footer-nav a:hover{color:var(--yz-gold)}
.yz-footer-bottom{padding:22px 0;text-align:center;font-size:.76rem;color:rgba(255,255,255,.3)}
/* PAGE HERO */
.yz-page-hero{padding:130px 0 60px;background:var(--yz-primary);text-align:center}
.yz-page-hero h1{font-size:2.4rem;color:#fff;margin-bottom:12px}
.yz-page-hero p{font-size:.92rem;color:rgba(255,255,255,.6)}
/* RESPONSIVE */
@media(max-width:1024px){.yz-hero-grid{grid-template-columns:1fr;gap:40px}.yz-hero-visual{display:none}.yz-hero h1{font-size:2.2rem}.yz-svc-grid{grid-template-columns:repeat(2,1fr)}.yz-about-grid{grid-template-columns:1fr}.yz-faq-layout{grid-template-columns:1fr}.yz-faq-side{position:static;text-align:center}.yz-footer-top{grid-template-columns:1fr 1fr}.yz-testi-grid{grid-template-columns:1fr}.yz-gallery-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:768px){.yz-nav{padding:10px 16px;flex-wrap:wrap}.yz-nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--yz-border);padding:12px 16px;gap:0;box-shadow:var(--yz-shadow-lg)}.yz-nav-links.active{display:flex}.yz-nav-links li{border-bottom:1px solid var(--yz-border)}.yz-nav-links li:last-child{border-bottom:none}.yz-nav-links a{display:block;padding:12px 0}.yz-nav-cta{display:none}.yz-mobile-btn{display:block}.yz-hero{padding:110px 0 60px}.yz-hero h1{font-size:1.8rem}.yz-hero-actions{flex-direction:column}.yz-btn-cta,.yz-btn-ghost{width:100%;justify-content:center}.yz-svc-grid{grid-template-columns:1fr}.yz-sec-header h2{font-size:1.5rem}.yz-section{padding:60px 0}.yz-footer-top{grid-template-columns:1fr;gap:28px}.yz-gallery-grid{grid-template-columns:repeat(2,1fr)}.yz-page-hero h1{font-size:1.8rem}}
@media(max-width:480px){.yz-trust-inner{gap:16px}.yz-about-feats{grid-template-columns:1fr}}.yz-hero-visual{display:none}.yz-hero h1{text-align:center}.yz-hero-desc{margin-left:auto;margin-right:auto}.yz-hero-actions{justify-content:center}.yz-hero-badge{margin-left:auto;margin-right:auto}.yz-svc-card{text-align:center;padding:40px 30px}.yz-svc-icon{margin-left:auto;margin-right:auto;width:60px;height:60px}