:root{--ink:#2d2134;--ink-2:#5c4a61;--cream:#fffaf5;--paper:#fffdfb;--rose:#bc787b;--gold:#c29a6a;--violet:#75628b;--line:#eadfd6;--shadow:0 18px 45px rgba(68,38,61,.12);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:ui-serif,Georgia,'Noto Serif SC','Songti SC',serif;line-height:1.68;letter-spacing:.01em}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.shell{width:min(1180px,calc(100% - 38px));margin:auto}.eyebrow{font:600 .76rem/1.2 ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--rose)}.topline{height:4px;background:linear-gradient(90deg,var(--rose),var(--gold),var(--violet))}.site-head{position:sticky;top:0;z-index:40;background:rgba(255,250,245,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(234,223,214,.8)}.navrow{display:flex;min-height:76px;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-family:ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;font-weight:750;white-space:nowrap}.brand-mark{width:29px;height:29px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;color:var(--gold);font-size:14px}.navlinks{margin-left:auto;display:flex;gap:21px;align-items:center;font:500 .9rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;color:var(--ink-2)}.navlinks a:hover{color:var(--rose)}.navlinks .active{color:var(--rose);font-weight:700}.language{border:1px solid var(--line);padding:7px 10px;border-radius:100px;color:var(--ink-2);font-size:.78rem}.menu-btn{display:none;border:0;background:none;font-size:1.5rem;color:var(--ink)}.hero{position:relative;min-height:690px;overflow:hidden;display:grid;align-items:end;background:#4a334d}.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.9}.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,20,39,.78) 0%,rgba(37,21,42,.45) 42%,rgba(35,20,41,.12) 85%),linear-gradient(0deg,rgba(25,14,31,.45),transparent 48%)}.hero .shell{position:relative;z-index:2;padding:84px 0 78px;color:#fff}.hero h1{max-width:740px;font-size:clamp(2.5rem,5vw,5.25rem);line-height:1.06;margin:14px 0 19px;letter-spacing:-.025em}.hero p{max-width:600px;margin:0 0 29px;color:rgba(255,250,246,.89);font-size:1.07rem}.hero .eyebrow{color:#ffd9c8}.actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 20px;font:700 .86rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;transition:.2s}.button.primary{background:#fff7ee;color:#54384c}.button.primary:hover{transform:translateY(-2px);background:#fff}.button.ghost{border:1px solid rgba(255,255,255,.6);color:#fff}.button.ghost:hover{background:rgba(255,255,255,.1)}.intro{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;padding:102px 0}.display{font-size:clamp(2rem,3.8vw,3.5rem);line-height:1.15;letter-spacing:-.02em;margin:10px 0}.soft{color:var(--ink-2)}.number-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.number-grid div{background:var(--paper);padding:30px}.number-grid strong{display:block;font-size:2.1rem;color:var(--rose);line-height:1.1}.number-grid span{font:500 .84rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;color:var(--ink-2)}.section{padding:88px 0}.tint{background:linear-gradient(180deg,#fbf3ed,#fffaf5)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:33px}.section-head h2{margin:9px 0 0;font-size:clamp(1.85rem,3.3vw,3rem);line-height:1.14}.section-head p{max-width:480px;margin:0;color:var(--ink-2)}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 9px 28px rgba(72,45,60,.07);display:flex;flex-direction:column}.card img{height:215px;width:100%;object-fit:cover}.card-body{padding:23px 23px 25px;display:flex;flex-direction:column;gap:9px;flex:1}.tag{color:var(--rose);font:700 .74rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;letter-spacing:.1em;text-transform:uppercase}.card h3{font-size:1.34rem;line-height:1.24;margin:0}.card p{margin:0;color:var(--ink-2);font-size:.95rem}.link-arrow{display:inline-flex;gap:7px;margin-top:auto;color:var(--rose);font:700 .86rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif}.list-row{display:grid;grid-template-columns:100px 1fr auto;gap:22px;align-items:center;padding:21px 0;border-top:1px solid var(--line)}.list-row:last-child{border-bottom:1px solid var(--line)}.list-num{font:700 .88rem ui-sans-serif,system-ui;color:var(--gold)}.list-row h3{margin:0;font-size:1.3rem}.list-row p{margin:4px 0 0;color:var(--ink-2);font-size:.92rem}.quote{position:relative;padding:80px 0;overflow:hidden;background:#423046;color:#fff}.quote:before{content:'“';position:absolute;font:18rem/1 Georgia,serif;left:5%;top:-.12em;color:rgba(255,255,255,.06)}.quote blockquote{position:relative;z-index:1;max-width:820px;margin:0;font-size:clamp(1.9rem,4vw,3.3rem);line-height:1.28}.quote cite{display:block;margin-top:22px;font:600 .78rem ui-sans-serif,system-ui;letter-spacing:.13em;text-transform:uppercase;color:#f1c7aa}.cta-band{padding:72px 0;background:linear-gradient(100deg,#bd797d,#765f88);color:#fff}.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:40px}.cta-grid h2{margin:10px 0 0;max-width:690px;font-size:clamp(2rem,4vw,3.4rem);line-height:1.12}.cta-band .eyebrow{color:#ffe1cf}.cta-band .button.primary{background:#fff7ef}.footer{background:#2e2133;color:#f7eeee;padding:62px 0 20px}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:26px}.footer h3{font:700 1rem ui-sans-serif,system-ui;margin:0 0 12px}.footer a,.footer p{display:block;margin:7px 0;color:rgba(255,245,241,.72);font:400 .88rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif}.footer a:hover{color:#fff}.fine{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,245,241,.54);font:400 .75rem ui-sans-serif,system-ui}.page-hero{padding:95px 0 64px;background:linear-gradient(112deg,#f0e1d8,#fffbf6 55%,#e6dbe9)}.page-hero h1{max-width:850px;margin:10px 0 12px;font-size:clamp(2.35rem,4.8vw,4.6rem);line-height:1.08;letter-spacing:-.025em}.page-hero p{max-width:720px;margin:0;color:var(--ink-2);font-size:1.05rem}.crumb{font:600 .76rem ui-sans-serif,system-ui;color:var(--rose);letter-spacing:.08em}.content{padding:72px 0 100px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:58px}.prose{font-size:1.03rem}.prose h2{font-size:2rem;line-height:1.2;margin:42px 0 15px}.prose h3{font-size:1.3rem;margin:28px 0 8px}.prose p{color:#4f4055}.prose li{margin:10px 0;color:#4f4055}.prose img{border-radius:20px;margin:25px 0;box-shadow:var(--shadow)}.aside{align-self:start;position:sticky;top:100px;background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:22px}.aside h3{font-size:1rem;margin:0 0 10px}.aside a{display:block;border-top:1px solid var(--line);padding:12px 0;font:600 .86rem ui-sans-serif,system-ui;color:var(--ink-2)}.aside a:first-of-type{border-top:0}.searchbox{display:flex;gap:9px;background:var(--paper);border:1px solid var(--line);padding:9px;border-radius:16px;max-width:720px}.searchbox input{border:0;outline:0;background:transparent;padding:10px;flex:1;font:1rem ui-sans-serif,system-ui}.searchbox button{border:0;background:var(--ink);color:#fff;border-radius:10px;padding:0 16px;font-weight:700}.results{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:30px}.result{background:#fff;border:1px solid var(--line);padding:20px;border-radius:18px}.result strong{font-size:1.13rem}.result p{color:var(--ink-2);margin:6px 0 0;font-size:.9rem}.notice{border-left:3px solid var(--gold);background:#fff8ee;padding:17px 18px;color:var(--ink-2);font-size:.93rem}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font:700 1.1rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif}details p{color:var(--ink-2);margin:12px 0 0}.pill{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:8px 12px;font:600 .78rem ui-sans-serif,system-ui;color:var(--ink-2);margin:4px 3px 0 0}.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.feature{background:#fff;border:1px solid var(--line);border-radius:20px;padding:25px}.feature h3{margin:4px 0 10px;font-size:1.35rem}.feature p{margin:0;color:var(--ink-2)}.meta{font:600 .78rem ui-sans-serif,system-ui;color:var(--rose);letter-spacing:.07em}.mobile-cta{display:none}@media(max-width:820px){.navlinks{display:none}.navlinks.open{display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;background:rgba(255,250,245,.98);padding:16px 19px 22px;border-bottom:1px solid var(--line);gap:16px}.menu-btn{display:block;margin-left:auto}.language{margin-left:0}.hero{min-height:620px}.intro,.content-grid{grid-template-columns:1fr;gap:32px}.card-grid{grid-template-columns:1fr}.section-head,.cta-grid{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:repeat(2,1fr)}.aside{position:static}.results,.two-col{grid-template-columns:1fr}.list-row{grid-template-columns:52px 1fr}.list-row .link-arrow{grid-column:2}.mobile-cta{display:block;position:fixed;z-index:35;bottom:15px;left:15px;right:15px;text-align:center;box-shadow:0 12px 30px rgba(65,35,58,.3)}.mobile-cta .button{background:var(--ink);color:#fff}.footer{padding-bottom:82px}}@media(max-width:520px){.shell{width:min(100% - 28px,1180px)}.hero .shell{padding:76px 0 70px}.hero h1{font-size:2.55rem}.footer-grid{grid-template-columns:1fr}.fine{flex-direction:column}.number-grid div{padding:22px}.page-hero{padding:66px 0 44px}.content{padding:49px 0 78px}}

/* Houston expanded content architecture */
.structure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.structure-grid .card img{height:178px}.knowledge-grid{grid-template-columns:repeat(3,1fr)}.dark-ghost{border-color:var(--ink-2)!important;color:var(--ink-2)!important}.page-hero .actions{margin-top:23px}.page-hero .button.primary{background:var(--ink);color:#fff}.page-hero .button.primary:hover{background:var(--rose)}.page-hero .button.ghost{border-color:var(--ink-2);color:var(--ink-2)}.nav-contact{border:1px solid var(--rose);border-radius:999px;padding:8px 12px;color:var(--rose)!important;font-weight:750!important;white-space:nowrap}.official-contact{background:linear-gradient(135deg,#fffaf6,#f4e8e8);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:var(--shadow)}.official-contact h3{margin:6px 0 12px;font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.16}.official-contact .contact-kicker{font:700 .74rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;letter-spacing:.12em;color:var(--rose)}.official-contact .contact-channel{margin:0;color:var(--ink-2);font:650 .9rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif}.official-contact .contact-phone{margin:9px 0 2px;font:800 1.48rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;color:var(--ink)}.official-contact .contact-email{margin:0 0 20px;font:650 1rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;color:var(--rose)}.official-contact .contact-note{margin:16px 0 0;color:var(--ink-2);font-size:.89rem;line-height:1.6}.official-contact.compact{background:transparent;border:0;box-shadow:none;padding:0}.official-contact.compact h3{font:700 1rem ui-sans-serif,system-ui,'Microsoft YaHei',sans-serif;margin:3px 0 9px;color:#fff}.official-contact.compact .contact-kicker{color:#f1c7aa}.official-contact.compact .contact-channel,.official-contact.compact .contact-phone,.official-contact.compact .contact-email,.official-contact.compact .contact-note{color:rgba(255,245,241,.78)}.official-contact.compact .contact-phone{font-size:1.03rem;margin:7px 0 1px}.official-contact.compact .contact-email{font-size:.88rem;margin:0 0 12px}.official-contact.compact .contact-note{font-size:.76rem;margin-top:12px}.official-contact.compact .button.primary{padding:10px 13px;font-size:.74rem;background:#fff7ee;color:#54384c}@media(max-width:1060px){.structure-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:820px){.structure-grid,.knowledge-grid{grid-template-columns:1fr}.structure-grid .card img{height:215px}.nav-contact{align-self:flex-start}}