:root{--ink:#251918;--muted:#6d615f;--line:rgba(178,65,48,.18);--red:#e33b2e;--red2:#ff7466;--rose:#fff1ef;--paper:#fffdfb;--glass:rgba(255,255,255,.76);--shadow:0 24px 70px rgba(144,31,22,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 75% 5%,#fff2f0 0,#fffdfb 34%,#f8fbff 100%);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;letter-spacing:0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.topbar{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:14px clamp(18px,4vw,58px);background:rgba(255,255,255,.82);border-bottom:1px solid var(--line);backdrop-filter:blur(20px)}.brand{display:flex;align-items:center;gap:11px;min-width:0}.brand-mark{width:34px;height:34px;border:1px solid rgba(227,59,46,.28);border-radius:8px;background:linear-gradient(135deg,rgba(255,255,255,.9),rgba(255,100,82,.26));position:relative;box-shadow:inset 0 0 18px rgba(227,59,46,.18)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--red);height:2px;border-radius:4px;left:7px;right:7px}.brand-mark:before{top:12px;transform:rotate(-25deg)}.brand-mark:after{bottom:12px;transform:rotate(24deg)}.brand b{display:block;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand small{display:block;color:var(--muted);font-size:12px}.nav-menu summary{list-style:none;border:1px solid var(--line);border-radius:8px;padding:8px 13px;background:rgba(255,255,255,.78);cursor:pointer}.nav-menu summary::-webkit-details-marker{display:none}.nav-menu:not([open]) nav{display:none}.nav-menu nav{position:absolute;top:62px;right:clamp(18px,4vw,58px);display:grid;min-width:230px;padding:10px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);backdrop-filter:blur(18px)}.nav-menu a{padding:9px 10px;border-radius:6px}.nav-menu a:hover{background:#fff0ed;color:#b51f16}.liquid-hero{position:relative;min-height:calc(100vh - 68px);display:grid;grid-template-columns:minmax(330px,.78fr) minmax(440px,1.22fr);gap:24px;align-items:center;padding:42px clamp(18px,4vw,58px) 32px;overflow:hidden}.fiber-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.82}.hero-copy{position:relative;z-index:2;max-width:650px;padding:26px;border:1px solid rgba(255,255,255,.74);background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(255,241,239,.42));border-radius:8px;box-shadow:var(--shadow);backdrop-filter:blur(18px)}.map-kicker{margin:0 0 10px;color:#c5291f;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.hero-copy h1,.product-head h1,.glass-single h1,.article-page h1{margin:0 0 18px;font-size:clamp(38px,6vw,74px);line-height:1.04;letter-spacing:0}.hero-lead,.product-head p,.glass-single>p,.article-lead{font-size:18px;color:#4e403e;margin:0 0 22px}.action-row{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 0}.action-row a,.section-heading a,.note-form button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 15px;border:1px solid rgba(227,59,46,.22);border-radius:8px;background:#e33b2e;color:#fff;font-weight:850;box-shadow:0 12px 30px rgba(227,59,46,.18)}.action-row a:nth-child(2),.section-heading a{background:#fff;color:#b52219}.action-row a:nth-child(3){background:#251918}.hero-map{position:relative;z-index:1;margin:0;align-self:stretch;display:flex;align-items:center}.hero-map img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;border:1px solid rgba(227,59,46,.16);box-shadow:0 34px 90px rgba(144,31,22,.16)}.device-orbit{position:absolute;z-index:3;right:clamp(18px,5vw,78px);bottom:30px;display:grid;grid-template-columns:repeat(4,minmax(74px,1fr));gap:8px;max-width:460px}.device-orbit span{padding:10px 12px;border:1px solid rgba(227,59,46,.22);background:rgba(255,255,255,.72);border-radius:8px;text-align:center;font-weight:850;backdrop-filter:blur(12px)}.address-ribbon{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:0 clamp(18px,4vw,58px);border:1px solid var(--line);background:var(--line);box-shadow:var(--shadow)}.address-ribbon a{min-height:132px;padding:18px;background:rgba(255,255,255,.82);backdrop-filter:blur(16px)}.address-ribbon b,.stream-card b,.task-panels b,.issue-grid b{display:block;font-size:18px;line-height:1.28;margin-bottom:8px}.address-ribbon span,.stream-card span,.task-panels p,.issue-grid p,.legal-stack p{color:var(--muted);margin:0}.glass-grid,.fiber-board,.article-stream,.faq-glass,.product-shell,.help-shell,.glass-single,.article-index,.article-page{max-width:1180px;margin:42px auto;padding:0 clamp(18px,4vw,58px)}.glass-grid{display:grid;grid-template-columns:1.08fr repeat(3,minmax(0,1fr));gap:12px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}.section-heading h2,.fiber-board h2,.faq-glass h2,.product-head h1,.glass-single h1,.article-index h1{margin:0}.glass-grid .section-heading{display:block;padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px}.glass-grid article,.task-panels article,.issue-grid article,.legal-stack article,.route-matrix article,.device-dock article,.download-lanes article{padding:20px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.72);box-shadow:0 16px 45px rgba(144,31,22,.08);backdrop-filter:blur(14px)}.glass-grid article span{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:8px;background:#fff0ed;color:#c5291f;font-weight:900}.glass-grid h3{margin:14px 0 8px}.fiber-board{display:grid;grid-template-columns:minmax(0,1fr) minmax(310px,.72fr);gap:18px;align-items:start;background:linear-gradient(135deg,rgba(255,255,255,.86),rgba(255,239,236,.6));border:1px solid var(--line);border-radius:8px;padding-top:24px;padding-bottom:24px;box-shadow:var(--shadow)}.fiber-board p{color:#564845}.fiber-board ol{margin:0;padding:0;list-style:none;display:grid;gap:10px}.fiber-board li{display:grid;grid-template-columns:26px 1fr;gap:6px 12px;padding:13px;border:1px solid rgba(227,59,46,.18);background:rgba(255,255,255,.66);border-radius:8px}.fiber-board li span{grid-row:1/3;width:18px;height:18px;margin-top:5px;border-radius:50%;background:radial-gradient(circle,#fff 0,#fff 24%,#e33b2e 27%,#ff8d7d 100%);box-shadow:0 0 18px rgba(227,59,46,.6)}.fiber-board small{color:var(--muted)}.stream-list{display:grid;gap:11px}.stream-card{display:grid;grid-template-columns:112px minmax(0,1fr);gap:6px 16px;padding:17px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.78);backdrop-filter:blur(12px)}.stream-card time{color:#c5291f;font-weight:900}.stream-card span{grid-column:2}.faq-glass{display:grid;gap:10px}.faq-glass details{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:8px;backdrop-filter:blur(12px)}.faq-glass summary{cursor:pointer;padding:16px 18px;font-weight:900}.faq-glass p{margin:0;padding:0 18px 18px;color:var(--muted)}.product-head,.glass-single{padding:28px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.82);box-shadow:var(--shadow);backdrop-filter:blur(14px)}.task-panels,.issue-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}.download-lanes,.route-matrix,.device-dock,.network-steps,.glass-table,.short-cta,.contact-panel{margin:24px 0;padding:22px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.74);backdrop-filter:blur(12px)}.download-lanes,.route-matrix,.device-dock{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.route-matrix,.device-dock{grid-template-columns:repeat(4,minmax(0,1fr))}.device-dock article span{display:block;width:100%;height:4px;background:linear-gradient(90deg,#e33b2e,#ffb4aa,rgba(255,255,255,0));border-radius:8px;margin-bottom:12px}.table-row{display:grid;grid-template-columns:.7fr 1.35fr 1.05fr;gap:12px;padding:12px 0;border-top:1px solid rgba(227,59,46,.16)}.table-row.head{border-top:0;color:#c5291f;font-weight:900}.network-steps ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none}.network-steps li{padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}.help-faq{padding:0}.legal-stack,.info-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}.contact-panel{background:#fff}.note-form{display:grid;gap:12px;margin-top:16px}.note-form label{display:grid;gap:6px;color:#4e403e}.note-form input,.note-form textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;padding:11px;font:inherit}.note-form button{border:0;justify-self:start}.article-page{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px}.article-page article,.article-page aside{padding:26px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.84);box-shadow:var(--shadow)}.article-page time{display:block;color:#c5291f;font-weight:900;margin-bottom:14px}.article-page h2{font-size:23px;margin:0 0 8px}.article-page section{border-top:1px solid var(--line);padding-top:18px;margin-top:18px}.article-page p{color:#4d403e}.article-page aside{position:sticky;top:92px;display:grid;gap:12px;align-self:start}.article-page aside a{color:#b52219;font-weight:750}.footer{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(420px,1.1fr);gap:28px;padding:34px clamp(18px,4vw,58px);background:#281512;color:#fff7f5}.footer p{color:#f1c9c2;max-width:580px}.footer a{color:#fff}.footer nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.footer section{display:grid;gap:7px}.footer section b{color:#ffb8ad}
@media (max-width:980px){.liquid-hero{grid-template-columns:1fr;min-height:auto}.hero-map{min-height:320px}.device-orbit{position:relative;right:auto;bottom:auto;grid-column:1;max-width:none;margin:0 clamp(18px,4vw,58px) 20px}.address-ribbon,.glass-grid,.task-panels,.issue-grid,.download-lanes,.route-matrix,.device-dock,.network-steps ol,.legal-stack,.info-split,.article-page,.fiber-board,.footer{grid-template-columns:1fr 1fr}.glass-grid .section-heading,.fiber-board>div,.article-page article{grid-column:1/-1}.article-page aside{position:static}.footer-brand{grid-column:1/-1}}
@media (max-width:640px){.topbar{padding:12px 16px}.brand b{font-size:14px}.brand small{max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-menu nav{left:16px;right:16px}.liquid-hero{padding:24px 16px}.hero-copy{padding:20px}.hero-copy h1,.product-head h1,.glass-single h1,.article-page h1{font-size:33px}.hero-lead,.product-head p,.glass-single>p,.article-lead{font-size:16px}.address-ribbon,.glass-grid,.task-panels,.issue-grid,.download-lanes,.route-matrix,.device-dock,.network-steps ol,.legal-stack,.info-split,.article-page,.fiber-board,.footer{grid-template-columns:1fr}.address-ribbon,.glass-grid,.fiber-board,.article-stream,.faq-glass,.product-shell,.help-shell,.glass-single,.article-index,.article-page{margin-left:0;margin-right:0;padding-left:16px;padding-right:16px}.stream-card{grid-template-columns:1fr}.stream-card span{grid-column:auto}.table-row{grid-template-columns:1fr}.action-row a{width:100%}.device-orbit{grid-template-columns:1fr 1fr;margin-left:16px;margin-right:16px}.footer nav{grid-template-columns:1fr}.hero-map img{min-height:260px;object-position:62% center}}