*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.85 "Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink)}
a{color:inherit;text-decoration:none}
button,a{touch-action:manipulation}
button{font:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
.wrap{max-width:1280px;margin:auto;padding:0 48px}
.top{padding:24px 0;border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:13px;font-size:19px;font-weight:800;line-height:1.3}
.brand img{width:47px;height:47px}
.brand small{display:block;font-size:10px;letter-spacing:2px;font-weight:400;margin-top:5px}
.button{border:1px solid var(--ink);background:var(--ink);color:var(--bg);padding:11px 23px;border-radius:50px;display:inline-block;font-weight:700}
.button.alt{background:transparent;color:var(--ink)}
.kicker{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--muted);font-weight:700}
h1{font-size:clamp(38px,4.7vw,69px);line-height:1.22;letter-spacing:-2px;margin:22px 0}
h2{font-size:26px;line-height:1.45;margin:0 0 18px}
p{margin:0 0 18px}
.intro{max-width:680px;font-size:18px;color:var(--muted)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}
.hero{padding:78px 0 55px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:64px;align-items:center}
.phone-show{text-align:center;background:var(--panel);border:1px solid var(--line);padding:28px;border-radius:32px;position:relative}
.phone-show img{height:380px;width:auto;max-width:100%;filter:drop-shadow(0 15px 20px #102b2830)}
.phone-show figcaption{font-size:12px;color:var(--muted);margin-top:10px}
.phone-show:before{content:"READ / CONNECT";display:block;font-size:11px;letter-spacing:3px;margin-bottom:15px;color:var(--muted)}
.navigation{display:flex;gap:5px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.navigation a{padding:7px 12px;font-size:13px;border-radius:30px}
.navigation a.active,.navigation a:hover{background:var(--ink);color:var(--bg)}
.body-content{padding:50px 0 70px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{padding:32px;background:var(--panel);border:1px solid var(--line);border-radius:20px}
.card p{color:var(--muted);margin:0}
.num{display:block;color:var(--muted);font-size:12px;margin-bottom:20px;letter-spacing:2px}
.gallery{padding:45px 0 70px;border-top:1px solid var(--line)}
.gallery-head{display:flex;gap:24px;justify-content:space-between;align-items:start}
.gallery-head p{max-width:520px;color:var(--muted)}
.phones{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.phones figure{margin:0;text-align:center;background:var(--panel);padding:26px 14px;border-radius:22px;border:1px solid var(--line)}
.phones img{width:190px;height:auto;max-width:100%}
.phones figcaption{font-size:13px;margin-top:12px}
.cta{background:var(--ink);color:var(--bg);padding:36px;border-radius:22px;display:flex;gap:25px;align-items:center;justify-content:space-between;margin-bottom:60px}
.cta h2{margin:0 0 8px}
.cta p{margin:0;opacity:.75;font-size:14px}
.cta .button{border-color:var(--bg);background:var(--bg);color:var(--ink);white-space:nowrap}
footer{padding:30px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.footer-row{display:flex;gap:25px;justify-content:space-between;flex-wrap:wrap}
dialog{color:#133b35;border:1px solid #b5cabf;border-radius:22px;padding:32px;width:min(450px,calc(100% - 28px));max-height:85vh;overflow:auto;background:#f8fbf5}
dialog::backdrop{background:#071d1bb3;backdrop-filter:blur(4px)}
dialog h2{margin:22px 0}
.close{float:right;border:0;background:transparent;font-size:26px;line-height:1}
.contact-line{padding:17px 0;border-bottom:1px solid #cfdbd0;display:flex;justify-content:space-between;gap:15px;align-items:center}
.copy{border:1px solid #154d43;background:#154d43;color:#fff;border-radius:8px;padding:8px 14px}
.notice{margin-top:20px;font-size:14px}
.status{font-size:14px;min-height:26px}
.version-0{--bg:#edf1e8;--ink:#123f3b;--muted:#557169;--panel:#f9faf2;--line:#c6d4c8;--accent:#80b745}
.version-0 .hero h1{max-width:650px}
.version-0 .card:first-child{background:#d9e5bd}
.version-1{--bg:#faf8f5;--ink:#48283b;--muted:#7c6976;--panel:#fff;--line:#e3d9df;--accent:#a94c77}
.version-1 .shell{display:grid;grid-template-columns:225px 1fr;gap:48px}
.version-1 .navigation{display:flex;flex-direction:column;align-self:start;position:sticky;top:25px;border:0;margin-top:55px;padding:18px;background:#eee5eb;border-radius:12px}
.version-1 .navigation a{border-radius:6px;padding:9px 15px}
.version-1 .hero{padding:55px 0 30px}
.version-1 .hero-grid{grid-template-columns:1fr}
.version-1 .phone-show{display:none}
.version-1 .cards{grid-template-columns:1fr}
.version-1 .card{display:grid;grid-template-columns:45px 1fr;border-radius:8px;padding:28px}
.version-1 .card h2,.version-1 .card p{grid-column:2}
.version-1 .num{grid-row:1/3}
.version-1 h1{font-family:Georgia,"Microsoft YaHei",serif;font-size:56px}
.version-2{--bg:#f1f5fb;--ink:#163763;--muted:#5e738c;--panel:#fff;--line:#ccd9ec;--accent:#4380da}
.version-2 .hero-grid{grid-template-columns:1.4fr .6fr}
.version-2 .phone-show{border-radius:0;background:#dbe6f6}
.version-2 .phone-show img{height:310px}
.version-2 .navigation{border:0;background:#163763;color:white;justify-content:center;border-radius:8px}
.version-2 .navigation a.active{background:#b7d4ff;color:#163763}
.version-2 .cards{display:block;border-left:2px solid #8cafdf;margin-left:20px;padding-left:35px}
.version-2 .card{position:relative;border-radius:5px;margin-bottom:25px;padding:30px 35px}
.version-2 .num{position:absolute;left:-55px;top:25px;background:#163763;color:white;border-radius:50%;width:38px;height:38px;text-align:center;padding-top:6px;letter-spacing:0}
.version-2 .cta{border-radius:5px}
.version-3{--bg:#111c31;--ink:#e6e8f4;--muted:#a8b0ca;--panel:#1a2943;--line:#34445f;--accent:#d4a36c}
.version-3 .top{border:0}
.version-3 .hero-grid{grid-template-columns:1.4fr .6fr}
.version-3 h1{color:#f1d5af}
.version-3 .hero{padding:70px 0 40px}
.version-3 .phone-show{background:#1d2b46;border-radius:100px 100px 18px 18px}
.version-3 .phone-show img{height:330px}
.version-3 .navigation{border:0;gap:8px}
.version-3 .navigation a{border:1px solid var(--line);border-radius:7px}
.version-3 .navigation a.active{background:#d4a36c;color:#16233c}
.version-3 .cards{display:block}
.version-3 details{border-top:1px solid var(--line);padding:24px 0}
.version-3 details:last-child{border-bottom:1px solid var(--line)}
.version-3 summary{cursor:pointer;font-size:24px;font-weight:700;list-style:none;display:flex;gap:24px;align-items:center}
.version-3 summary:after{content:'＋';margin-left:auto;color:#d4a36c}
.version-3 details[open] summary:after{content:'−'}
.version-3 details p{padding:20px 30px 0 58px;color:var(--muted);max-width:950px}
.version-3 .num{margin:0;color:#d4a36c}
.version-3 .cta{background:#d4a36c;color:#152239}
.version-3 .cta .button{background:#152239;color:#fff;border-color:#152239}
.version-4{--bg:#f4f0e3;--ink:#2b4a3c;--muted:#697568;--panel:#fbf9ef;--line:#cbd1bd;--accent:#709c60}
.version-4 .top{background:#2b4a3c;color:#f4f0e3}
.version-4 .top .button{background:#d4e4b7;border:0;color:#2b4a3c}
.version-4 .hero-grid{grid-template-columns:1fr}
.version-4 .hero{max-width:900px;padding:65px 0 28px}
.version-4 .phone-show{display:none}
.version-4 .kicker{letter-spacing:5px}
.version-4 h1{font-family:Georgia,"Microsoft YaHei",serif;font-size:58px;max-width:800px}
.version-4 .navigation{border-top:3px double var(--line);border-bottom:3px double var(--line)}
.version-4 .cards{display:block;max-width:900px;margin:auto}
.version-4 .card{background:transparent;border:0;border-radius:0;border-bottom:1px solid var(--line);padding:35px 0;display:grid;grid-template-columns:70px 1fr}
.version-4 .card h2,.version-4 .card p{grid-column:2}
.version-4 .num{grid-row:1/3;font-family:Georgia,serif;font-size:29px;color:#82976d}
.version-4 .cta,.version-4 .phones figure{border-radius:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:10px;top:10px;background:var(--bg);padding:10px;z-index:10}

@media(max-width:1000px){.wrap{padding:0 28px}
.hero-grid{gap:30px}
.version-1 .shell{grid-template-columns:180px 1fr;gap:25px}
.version-1 h1,.version-4 h1{font-size:46px}
.phones img{width:160px}
}

@media(max-width:650px){.wrap{padding:0 20px}
.top{padding:17px 0}
.brand{font-size:15px}
.brand img{width:38px;height:38px}
.brand small{font-size:9px;letter-spacing:1px}
.top .wrap{gap:10px}
.top .button{padding:8px 13px;font-size:12px}
.hero{padding:40px 0 28px}
.hero-grid,.version-2 .hero-grid,.version-3 .hero-grid{grid-template-columns:1fr;gap:22px}
h1,.version-1 h1,.version-4 h1{font-size:38px;letter-spacing:-1px}
h2{font-size:23px}
.intro{font-size:16px}
.phone-show{margin:0;padding:20px}
.phone-show img,.version-2 .phone-show img,.version-3 .phone-show img{height:260px}
.navigation a{font-size:12px;padding:6px 10px}
.body-content{padding:25px 0 45px}
.cards{grid-template-columns:1fr;gap:16px}
.card{padding:25px}
.version-1 .shell{display:block}
.version-1 .navigation{position:static;display:flex;flex-direction:row;margin-top:24px;padding:10px;gap:0}
.version-1 .navigation a{padding:6px 9px;font-size:12px}
.version-1 .hero{padding:35px 0 15px}
.version-1 .card{padding:22px;grid-template-columns:32px 1fr}
.version-2 .cards{padding-left:23px;margin-left:15px}
.version-2 .card{padding:24px}
.version-2 .num{left:-43px;width:35px;height:35px}
.version-3 summary{font-size:20px;gap:14px}
.version-3 details p{padding:18px 0 0 0}
.version-4 .card{grid-template-columns:43px 1fr;padding:28px 0}
.version-4 .hero{padding:40px 0 20px}
.gallery-head{display:block}
.phones{gap:10px;grid-template-columns:1fr}
.phones figure{display:grid;grid-template-columns:110px 1fr;align-items:center;gap:20px;padding:18px;text-align:left}
.phones img{width:110px}
.phones figcaption{font-size:14px}
.cta{padding:26px;display:block;margin-bottom:38px}
.cta .button{margin-top:20px}
.contact-line{font-size:14px}
dialog{padding:23px}
.gallery{padding:30px 0 40px}
.footer-row{gap:10px}
}