:root{color-scheme:light;--bg:#faf9f6;--surface:#fff;--surface2:#f4f2eb;--ink:#161616;--muted:#6e6c66;--line:#e4e0d5;--gold:#ac8029;--gold2:#e3bb63;--goldshade:#fff7e3;--shadow:0 18px 54px rgba(18,18,18,.06)}
html[data-theme="dark"]{color-scheme:dark;--bg:#0c0c0c;--surface:#171717;--surface2:#202020;--ink:#f5f3ed;--muted:#a9a69e;--line:#36332d;--gold:#e3ba61;--gold2:#f4d78e;--goldshade:#272115;--shadow:0 18px 54px rgba(0,0,0,.24)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;transition:background .2s,color .2s}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.container{width:min(1180px,calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px;top:0;padding:10px;background:var(--surface);z-index:80}.skip:focus{left:12px}.accent{color:var(--gold)}.eyebrow{font-size:12px;letter-spacing:.16em;font-weight:750;text-transform:uppercase;color:var(--gold)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.3rem,5.5vw,4.7rem);line-height:1.16;letter-spacing:-.045em;font-weight:740;margin-bottom:22px}h2{font-size:clamp(1.55rem,2.8vw,2.4rem);line-height:1.25;letter-spacing:-.025em}h3{font-size:1.08rem;line-height:1.4}.lead{font-size:clamp(1rem,1.55vw,1.18rem);color:var(--muted);max-width:650px}.muted{color:var(--muted)}.small{font-size:.86rem}.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:99px;padding:5px 12px;font-size:.8rem;color:var(--muted)}.badge{display:inline-block;color:var(--gold);background:var(--goldshade);padding:3px 11px;border-radius:99px;font-size:.78rem;font-weight:700}
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.bar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;font-weight:800;letter-spacing:-.01em;font-size:1.05rem}.brand-mark{height:37px;width:37px;display:grid;place-items:center;color:#111;background:linear-gradient(135deg,#f2d388,#aa7923);border-radius:12px;font-size:14px;font-weight:900}.brand small{display:block;font-size:10px;letter-spacing:.1em;color:var(--muted);font-weight:650;line-height:1.3}.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}.nav-item{position:relative;display:flex;align-items:center}.nav-main{font-size:.81rem;font-weight:650;padding:10px 7px;white-space:nowrap}.nav-item:hover>.nav-main,.nav-main:focus{color:var(--gold)}.nav-drop-toggle{border:0;background:transparent;color:var(--muted);font-size:16px;padding:9px 3px 9px 0}.dropdown{display:none;position:absolute;top:100%;left:0;min-width:210px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.dropdown a{display:block;font-size:13px;padding:8px 11px;border-radius:8px}.dropdown a:hover{background:var(--surface2);color:var(--gold)}.nav-item:hover>.dropdown,.nav-item:focus-within>.dropdown,.nav-item.open>.dropdown{display:block}.header-actions{display:flex;align-items:center;gap:8px}.icon-btn{display:grid;place-items:center;min-width:40px;height:40px;border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--ink)}.menu-toggle{display:none}.mobile-overlay{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 20px;border-radius:13px;font-weight:750;font-size:.9rem;transition:transform .15s,background .15s;border:1px solid transparent}.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,#c59a42,#edca79);color:#17120a}.btn-secondary{border-color:var(--line);background:var(--surface);color:var(--ink)}.hero{padding:84px 0 72px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:54px}.hero p{max-width:590px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}.trust-line{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.gold-rule{width:70px;height:3px;background:var(--gold);border-radius:5px;margin:0 0 25px}.calculator{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:27px;overflow:hidden}.calculator:before{content:"";position:absolute;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,var(--goldshade),transparent 70%);right:-58px;top:-58px;pointer-events:none}.calculator h2{font-size:1.45rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:7px;margin:12px 0}.field label{font-size:13px;font-weight:700}.field select,.field input{width:100%;min-height:47px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink);padding:9px 11px}.estimate{margin:18px 0 12px;border:1px solid var(--line);border-radius:15px;background:var(--surface2);padding:17px}.estimate strong{font-size:clamp(1.35rem,3vw,1.9rem);line-height:1.3;display:block}.estimate .deposit{margin-top:7px;font-size:.86rem}.notice{font-size:.78rem;color:var(--muted);margin:10px 0 0}.section{padding:62px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:27px}.section-head p{max-width:580px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--surface);border:1px solid var(--line);padding:23px;border-radius:20px;min-width:0;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:var(--gold)}.card .card-id{display:block;font-size:.75rem;font-weight:800;color:var(--gold);margin-bottom:20px;letter-spacing:.12em}.card p{color:var(--muted);font-size:.92rem}.card-link{font-size:.85rem;color:var(--gold);font-weight:750}.card h3{font-size:1.18rem}.simple-band{padding:34px;border-radius:25px;background:var(--surface2);border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}.simple-band h2{font-size:1.65rem;margin-bottom:5px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;color:var(--muted);margin:22px 0 30px}.breadcrumbs a:hover{color:var(--gold)}.page-head{padding:18px 0 38px;max-width:820px}.page-head h1{font-size:clamp(2rem,4.2vw,3.6rem)}.two-col{display:grid;grid-template-columns:minmax(0,1fr) 270px;align-items:start;gap:36px}.prose{max-width:800px}.prose p,.prose li{color:var(--muted)}.prose p{line-height:1.95}.prose ul{padding-left:1.5em}.inner-panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:25px;margin-bottom:23px}.inner-panel h2{font-size:1.5rem}.inner-panel h3{margin-top:0}.sidebar{position:sticky;top:100px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:19px}.sidebar summary{font-weight:800;list-style:none;cursor:pointer}.sidebar summary::-webkit-details-marker{display:none}.sidebar summary:after{content:"−";float:right;color:var(--gold)}.side-group{padding:15px 0;border-top:1px solid var(--line);display:grid;gap:7px}.side-group:first-child{margin-top:15px}.side-group a:not(.side-title){font-size:.82rem;color:var(--muted);padding-left:12px}.side-group a:hover{color:var(--gold)}.side-title{font-size:.9rem;font-weight:800}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:var(--surface)}table{border-collapse:collapse;width:100%;min-width:600px}th,td{padding:15px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;font-size:.9rem}th{font-weight:750;background:var(--surface2)}tr:last-child td{border-bottom:0}.empty-state{border:1px dashed var(--line);border-radius:20px;background:var(--surface);padding:36px;text-align:center}.empty-state .empty-icon{font-size:2rem}.faq-list details{border-bottom:1px solid var(--line);padding:17px 0}.faq-list summary{font-weight:750;cursor:pointer}.faq-list p{padding-top:10px;color:var(--muted)}.footer{margin-top:70px;background:var(--surface);border-top:1px solid var(--line);padding:56px 0 26px}.footer-grid{display:grid;grid-template-columns:1.6fr 3fr;gap:48px}.foot-menus{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px 15px}.foot-menus section{display:flex;flex-direction:column;align-items:start;gap:8px}.foot-menus a{font-size:.79rem;color:var(--muted)}.foot-menus .foot-title{font-weight:800;color:var(--ink);font-size:.91rem}.foot-menus a:hover{color:var(--gold)}.footer-bottom{border-top:1px solid var(--line);margin-top:33px;padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:.78rem;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:1100px){.main-nav .nav-main{font-size:.77rem;padding:8px 4px}.hero-grid{gap:30px}.foot-menus{grid-template-columns:repeat(3,1fr)}}
@media(max-width:940px){.menu-toggle{display:grid}.main-nav{display:none;position:fixed;top:76px;right:0;bottom:0;width:min(380px,88vw);background:var(--surface);border-left:1px solid var(--line);padding:18px 24px;overflow:auto;z-index:70;box-shadow:var(--shadow);margin:0;align-items:stretch;flex-direction:column;gap:4px}.main-nav.mobile-open{display:flex}.nav-item{flex-wrap:wrap;border-bottom:1px solid var(--line)}.nav-main{flex:1;font-size:.99rem!important;padding:13px 0!important}.nav-drop-toggle{font-size:23px;padding:8px 12px}.dropdown{position:static;box-shadow:none;border:0;border-radius:0;min-width:0;width:100%;padding:0 0 12px 12px}.nav-item:hover>.dropdown,.nav-item:focus-within>.dropdown{display:none}.nav-item.open>.dropdown{display:block}.mobile-overlay.active{display:block;position:fixed;inset:76px 0 0;background:rgba(0,0,0,.56);z-index:60}.hero-grid{grid-template-columns:1fr}.hero{padding:54px 0}.calculator{max-width:720px}.two-col{grid-template-columns:1fr}.sidebar{position:static;order:-1}.sidebar details:not([open]) .side-content{display:none}.sidebar details[open] .side-content{display:block}.sidebar summary:after{content:"+"}.sidebar details[open] summary:after{content:"−"}.side-content{display:grid;grid-template-columns:repeat(2,1fr);gap:0 18px}}
@media(min-width:941px){.sidebar .side-content{display:block!important}}
@media(max-width:690px){.container{width:min(100% - 30px,1180px)}.bar{min-height:69px}.main-nav{top:69px}.mobile-overlay.active{top:69px}.hero{padding:40px 0 44px}.hero h1{font-size:clamp(2.25rem,10vw,3.5rem)}.section{padding:39px 0}.section-head{display:block}.cards{grid-template-columns:1fr}.calculator{padding:21px;border-radius:20px}.form-grid{grid-template-columns:1fr 1fr}.two-col{gap:23px}.side-content{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:32px}.foot-menus{grid-template-columns:repeat(2,1fr)}.simple-band{padding:24px}.inner-panel{padding:20px}.brand{font-size:.96rem}.brand small{font-size:9px}.page-head{padding-bottom:22px}.footer{margin-top:45px}}
@media(max-width:360px){.container{width:calc(100% - 24px)}.brand{gap:7px;font-size:.86rem}.brand-mark{width:33px;height:33px}.header-actions{gap:5px}.icon-btn{min-width:36px;height:36px}.form-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Mobile drawer interaction repair: keep the drawer above its backdrop.
   backdrop-filter on a sticky ancestor creates a containing block for fixed
   descendants on iOS/WebKit, so disable it below the desktop breakpoint. */
@media (max-width:940px){
  .site-header{z-index:100;backdrop-filter:none;-webkit-backdrop-filter:none}
  .main-nav{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;max-height:calc(100dvh - 76px)}
  .nav-drop-toggle{min-width:44px;min-height:44px;display:grid;place-items:center;padding:0}
  .mobile-overlay.active{z-index:60}
}
@media (max-width:690px){.main-nav{max-height:calc(100dvh - 69px)}}