:root{--navy:#102840;--deep:#091a2b;--slate:#344556;--blue:#2d6597;--gold:#b69a62;--paper:#f2f4f6;--white:#fff;--ink:#182532;--muted:#637180;--line:#cfd6dd;--max:1200px;--nav:72px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.skip{position:fixed;top:-60px;left:10px;z-index:99;padding:9px 14px;background:white}.skip:focus{top:9px}
.nav{position:fixed;inset:0 0 auto;z-index:30;height:var(--nav);color:white;background:rgba(9,26,43,.97);border-bottom:1px solid #385068}.navrow{height:100%;display:flex;align-items:center;justify-content:space-between;gap:25px}.logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:.04em}.logo-mark{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--gold);color:var(--gold);font-family:Georgia,serif;font-size:22px}.logo small{display:block;color:#8395a7;font-size:8px;font-weight:500;letter-spacing:.18em}.links{display:flex;align-items:center;gap:clamp(16px,2vw,29px);font-size:14px}.links a:not(.btn):hover,.links a[aria-current=page]{color:#d4bd8e}.toggle{display:none;width:42px;height:42px;border:1px solid #52677b;color:white;background:transparent;font-size:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:126px;min-height:44px;padding:9px 19px;border:1px solid var(--gold);border-radius:0;color:var(--deep);background:#c6ab72;font-weight:800;white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb}.btn:hover{background:#d7c08e}.btn.secondary{color:white;background:transparent;border-color:#8da0b1}.btn.blue{color:white;background:var(--blue);border-color:var(--blue)}.btn.small{min-width:103px;min-height:38px;padding:7px 13px;font-size:12px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.hero{padding:calc(var(--nav) + 72px) 0 82px;color:white;background:var(--deep);border-bottom:5px solid var(--gold)}.hero-grid{display:grid;grid-template-columns:.92fr 1.08fr;align-items:center;gap:66px}.seal{display:inline-flex;align-items:center;gap:9px;margin-bottom:19px;padding:5px 9px;border:1px solid #566e84;color:#b8c7d4;font-size:11px;letter-spacing:.1em}.seal::before{content:"";width:7px;height:7px;background:var(--gold)}h1,h2,h3{margin-top:0;line-height:1.15;text-wrap:balance}h1{margin-bottom:23px;font-size:clamp(43px,5.8vw,74px);letter-spacing:-.045em}.hero-copy>p{max-width:590px;margin:0 0 30px;color:#a8b6c4;font-size:17px}.actions{display:flex;flex-wrap:wrap;gap:10px}.assurance{display:grid;grid-template-columns:repeat(3,1fr);margin-top:30px;border-block:1px solid #3d5368}.assurance span{padding:12px 10px 12px 0;color:#8294a5;font-size:10px}.assurance span+span{padding-left:13px;border-left:1px solid #3d5368}.assurance b{display:block;color:white;font-size:13px}.hero-media{position:relative;align-self:center;height:auto;padding:0;margin:0;border:1px solid #72869a}.access-panel{position:absolute;right:-18px;bottom:-22px;width:250px;padding:15px;border-left:4px solid var(--gold);background:#17334f;color:#a9b8c7;font-size:11px;box-shadow:0 8px 20px #0005}.access-panel b{display:block;color:white;font-size:14px}
.trustbar{background:#e6e9ec;border-bottom:1px solid #c1c9d1}.trustgrid{display:grid;grid-template-columns:repeat(4,1fr)}.trustgrid span{padding:13px 17px;border-right:1px solid #c1c9d1;text-align:center;color:#526171;font-size:11px}.trustgrid span:last-child{border:0}.trustgrid b{color:var(--navy)}
.section{padding:clamp(76px,8vw,108px) 0}.white{background:white}.head{display:grid;grid-template-columns:1fr .68fr;align-items:end;gap:48px;margin-bottom:42px}.head h2{margin:0;font-size:clamp(33px,4vw,50px);letter-spacing:-.035em}.head p{margin:0;color:var(--muted)}.overline{display:block;margin-bottom:10px;color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.14em}
.functions{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--slate);border-left:1px solid var(--slate)}.function{min-height:225px;padding:27px;border-right:1px solid var(--slate);border-bottom:1px solid var(--slate);background:white}.function:nth-child(1),.function:nth-child(6){background:#e8edf2}.function-code{display:flex;justify-content:space-between;margin-bottom:38px;color:#7b8895;font-size:10px}.function-code b{display:grid;place-items:center;width:40px;height:40px;color:white;background:var(--navy)}.function h3{margin-bottom:7px;font-size:20px}.function p{margin:0;color:var(--muted);font-size:13px}
.platforms{border:1px solid var(--line);background:white}.platform{display:grid;grid-template-columns:85px 1fr 220px 150px;align-items:center;gap:20px;padding:22px 26px;border-bottom:1px solid var(--line)}.platform:last-child{border:0}.platform-icon{display:grid;place-items:center;width:54px;height:54px;border:1px solid var(--line);color:var(--blue);font-size:20px}.platform h3,.platform p{margin:0}.platform p{color:var(--muted);font-size:12px}.platform-meta{color:#7e8b98;font-size:11px}
.governance{color:white;background:var(--navy)}.governance-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch}.governance-media img{display:block;width:100%;height:100%;object-fit:cover}.governance-copy{padding:62px}.governance-copy .overline{color:#d4bd8e}.governance-copy h2{font-size:clamp(35px,4vw,50px)}.control{display:grid;grid-template-columns:105px 1fr;gap:18px;padding:19px 0;border-top:1px solid #526a80}.control:last-child{border-bottom:1px solid #526a80}.control b{color:#d4bd8e;font-size:12px}.control h3,.control p{margin:0}.control p{color:#a8b6c4;font-size:12px}
.scenarios{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.scenario{border:1px solid var(--line);background:white}.scenario img{display:block;width:100%;height:190px;object-fit:cover}.scenario-body{padding:25px}.scenario span{color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.1em}.scenario h3{margin:9px 0}.scenario p{color:var(--muted);font-size:13px}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.review{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:white}.review blockquote{margin:0 0 24px}.person{display:flex;align-items:center;gap:11px;padding-top:16px;border-top:1px solid var(--line)}.avatar{display:grid;place-items:center;width:40px;height:40px;color:white;background:var(--slate)}.person strong,.person small{display:block}.person small{color:var(--muted)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-items:center}.plan{padding:30px;border:1px solid var(--line);background:white}.plan.featured{padding-block:46px;color:white;background:var(--navy);border-top:5px solid var(--gold)}.tag{display:inline-block;margin-bottom:17px;padding:4px 8px;border:1px solid currentColor;font-size:10px}.price{color:var(--muted)}.price b{color:var(--navy);font-size:28px}.featured .price,.featured li{color:#aab8c6}.featured .price b{color:white}.plan ul{list-style:none;padding:0;margin:22px 0}.plan li{margin:8px 0;color:var(--muted);font-size:13px}.plan li::before{content:"■";margin-right:8px;color:var(--gold);font-size:7px}
.faq{max-width:900px;margin:auto;border-top:1px solid var(--navy)}.faq details{border-bottom:1px solid var(--line);background:white}.faq summary{position:relative;padding:21px 50px 21px 5px;list-style:none;cursor:pointer;font-weight:800}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"＋";position:absolute;right:8px;top:15px;color:var(--blue);font-size:24px}.faq details[open] summary::after{content:"－"}.answer{padding:0 50px 21px 5px;color:var(--muted)}
.pagehero{padding:calc(var(--nav) + 62px) 0 68px;color:white;background:var(--deep);border-bottom:5px solid var(--gold)}.pagegrid{display:grid;grid-template-columns:1fr .82fr;align-items:center;gap:58px}.pagehero p{color:#a8b6c4}.pageimg{border:1px solid #72869a}.downloads{display:grid;grid-template-columns:1fr 1fr;gap:12px}.download{display:grid;grid-template-columns:62px 1fr;gap:19px;padding:27px;border:1px solid var(--line);background:white}.download h2{margin-bottom:5px;font-size:21px}.download p{margin:0 0 14px;color:var(--muted);font-size:12px}.chips{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:15px}.chips span{padding:3px 7px;border:1px solid var(--line);color:#697684;font-size:9px}.notice{margin-top:18px;padding:17px 20px;border-left:4px solid var(--gold);background:#ece8df}
.help-layout{display:grid;grid-template-columns:245px 1fr;gap:44px;align-items:start}.helpnav{position:sticky;top:92px;border:1px solid var(--line);border-top:4px solid var(--navy);background:white}.helpnav a{display:block;padding:10px 13px;border-bottom:1px solid var(--line);font-size:13px}.helpnav a:hover{color:var(--blue);background:#edf2f6}.helpmain section{margin-bottom:58px}.helpmain h2{font-size:29px}.steps{display:grid;gap:8px;counter-reset:s}.step{position:relative;padding:18px 18px 18px 66px;border:1px solid var(--line);background:white}.step::before{counter-increment:s;content:counter(s);position:absolute;left:17px;top:17px;display:grid;place-items:center;width:31px;height:31px;color:white;background:var(--navy);font-size:12px}
.footer{padding:58px 0 22px;color:white;background:#071522;border-top:4px solid var(--gold)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:38px;padding-bottom:38px}.footer-intro p{max-width:320px;color:#8fa0b0;font-size:12px}.footer h3{color:#d4bd8e;font-size:13px}.footer ul{list-style:none;padding:0;margin:0}.footer li{margin:8px 0}.footer a{color:#8fa0b0;font-size:12px}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid #35495b;color:#6f8293;font-size:11px}
@media(max-width:930px){.toggle{display:block}.links{position:fixed;top:var(--nav);left:0;right:0;display:none;flex-direction:column;align-items:stretch;padding:20px;background:var(--deep)}.links.open{display:flex}.hero-grid,.pagegrid,.governance-grid{grid-template-columns:1fr}.functions{grid-template-columns:1fr 1fr}.platform{grid-template-columns:70px 1fr 130px}.platform-meta{display:none}.scenarios,.reviews,.plans{grid-template-columns:1fr}.plan.featured{order:-1}.footer-grid{grid-template-columns:1fr 1fr}.footer-intro{grid-column:1/-1}}
@media(max-width:650px){.head{grid-template-columns:1fr}.functions{grid-template-columns:1fr}.platform{grid-template-columns:55px 1fr}.platform .btn{grid-column:1/-1}.governance-copy{padding:42px 25px}.control{grid-template-columns:1fr}.downloads{grid-template-columns:1fr}.help-layout{grid-template-columns:1fr}.helpnav{position:static;display:flex;overflow-x:auto}.helpnav a{white-space:nowrap;border-right:1px solid var(--line)}.assurance{grid-template-columns:1fr}.assurance span+span{padding-left:0;border-left:0;border-top:1px solid #3d5368}.footer-grid{grid-template-columns:1fr 1fr}.copyright{flex-direction:column}}
/* Hero 图片最终覆盖：居中、自然高度、无裁切与变形 */
.hero-grid{align-items:center}.hero-media{align-self:center;height:auto;padding:0;margin:0;overflow:visible;transform:none}.hero-media img{display:block;width:100%;height:auto;object-fit:contain;object-position:center;min-height:0;max-height:none;margin:0;padding:0;clip-path:none;transform:none}