:root{--bg:#1c2125;--sidebar:rgba(31,37,41,.87);--panel:rgba(46,54,59,.7);--panel-hover:rgba(82,97,107,.87);--border:rgba(206,218,227,.14);--border-bright:rgba(218,231,240,.26);--text:#eef4f8;--muted:#bbc7d0;--subtle:#a0b0bc;--accent:#aec5d5;--accent-ink:#28333b;--cyan-tint:rgba(170,192,207,.09);--violet:#afc6d6;--shadow:0 10px 28px rgba(11,16,19,.2);--radius:16px}
body{background:radial-gradient(ellipse at 15% -10%,rgba(121,144,161,.08),transparent 50%),var(--bg)}
body.light{--bg:#fff;--sidebar:rgba(255,255,255,.96);--panel:rgba(255,255,255,.28);--panel-hover:rgba(255,255,255,.44);--crystal-surface:linear-gradient(128deg,rgba(205,231,246,.55),rgba(255,255,255,.28) 44%,rgba(218,227,236,.48));--crystal-hover:linear-gradient(128deg,rgba(201,228,244,.65),rgba(255,255,255,.36) 44%,rgba(213,225,235,.58));--border:rgba(72,99,117,.13);--border-bright:rgba(72,99,117,.24);--text:#2e3d48;--muted:#647583;--subtle:#647583;--accent:#426f88;--accent-ink:#fff;--cyan-tint:rgba(147,177,199,.06);--violet:#64879b;--shadow:0 14px 30px -12px rgba(55,84,103,.12);background:#fff}body.light .ambient{display:none}
.ambient-one{background:rgba(126,145,158,.15);top:-350px}.ambient-two{background:rgba(126,145,158,.12)}
.brand{font-size:22px;margin-bottom:35px}.brand-symbol{background:linear-gradient(140deg,rgba(126,145,158,.3),rgba(126,145,158,.1));border-color:rgba(126,145,158,.25);box-shadow:inset 0 1px 0 rgba(255,255,255,.65),0 5px 15px rgba(126,145,158,.1)}
.main-nav a.active{background:linear-gradient(110deg,rgba(126,145,158,.14),rgba(126,145,158,.055));border-color:rgba(126,145,158,.23);box-shadow:inset 0 1px 0 rgba(255,255,255,.3)}.main-nav a:hover{background:rgba(126,145,158,.08)}.topic-dot.cyan{background:var(--accent)}.topic-dot.violet{background:#92a8b8}.topic-dot.amber{background:#99abb8}
.sidebar{padding-top:28px}.sidebar-bottom{padding-top:24px}.topic-label{margin-top:30px}.topbar{height:78px;margin-bottom:24px}.search{background:rgba(126,145,158,.04)}.search input::placeholder{color:var(--subtle)}.icon-button:hover{background:rgba(126,145,158,.13)}
.glass{box-shadow:inset 0 1px 0 rgba(255,255,255,.16),var(--shadow)}body.light .glass{box-shadow:inset 0 1px 0 rgba(255,255,255,.88),inset 0 -1px 0 rgba(126,145,158,.035),var(--shadow)}
.hero,body.light .hero{padding:25px 30px;min-height:212px;grid-template-columns:minmax(0,1.4fr) minmax(260px,.8fr);background:linear-gradient(112deg,rgba(126,145,158,.95),rgba(126,145,158,.89) 58%,rgba(82,97,107,.84));border-color:rgba(207,227,241,.49);box-shadow:inset 0 1px 0 rgba(255,255,255,.48),inset 0 -1px 0 rgba(82,97,107,.08),0 12px 30px rgba(126,145,158,.16);align-items:center;color:#eff4f8}
.hero:before{background:radial-gradient(ellipse at 76% 10%,rgba(216,232,244,.22),transparent 62%)}.hero h1{font-size:clamp(26px,2.2vw,34px);font-weight:600;line-height:1.5;letter-spacing:-.8px;margin-top:0}.hero h1 span{color:#d9e6ef}.hero-copy>p{font-size:14px;color:#bfc8cf;margin-top:9px}.hero-links{margin-top:18px}.hero .button-primary{background:rgba(255,255,255,.94);color:#5e7280;border-color:rgba(255,255,255,.8);box-shadow:0 3px 12px rgba(31,43,51,.08)}.hero .button-primary:hover{background:#fff;transform:translateY(-1px)}.hero .button-ghost{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.4);color:#edf2f5}.hero .button-ghost:hover{background:rgba(255,255,255,.18)}
.hero-diagram{height:160px;margin:0 10px;transform:none}.orbit{width:166px;height:166px;border-color:rgba(220,235,245,.24)}.orbit-inner{width:122px;height:122px}.diagram-grid{width:240px;height:165px;background:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);background-size:26px 26px}
.diagram-core,body.light .diagram-core{width:87px;height:87px;border-radius:22px;background:linear-gradient(135deg,rgba(255,255,255,.28),rgba(126,145,158,.12));border-color:rgba(255,255,255,.54);box-shadow:inset 2px 2px 9px rgba(255,255,255,.29),inset -4px -4px 12px rgba(82,97,107,.15),9px 13px 20px rgba(34,47,56,.19)}.diagram-core strong,body.light .diagram-core strong{font-size:36px;color:#e7eff4;letter-spacing:-2px}.diagram-core span,body.light .diagram-core span{font-size:11px;letter-spacing:1px;color:#c8d5df}.diagram-node,body.light .diagram-node{background:linear-gradient(130deg,rgba(255,255,255,.2),rgba(126,145,158,.2));border-color:rgba(222,235,245,.36);color:#e7eff4;font-size:11px;padding:7px 10px;box-shadow:0 6px 15px rgba(41,57,68,.13)}.diagram-node .icon{color:#d7e4ee;width:13px;height:13px}.node-a{top:4px;left:9px}.node-b{right:-1px;top:64px}.node-c{left:35px;bottom:-1px}
.button-primary,body.light .button-primary{background:linear-gradient(115deg,#e6edf2,#e7eef3,#dfe8ee);color:#51626e;box-shadow:0 4px 13px rgba(126,145,158,.12)}.button-primary:hover,body.light .button-primary:hover{background:linear-gradient(115deg,#dee6eb,#dfe5ea,#d2dfe9)}.button-ghost{background:rgba(126,145,158,.045)}.button-ghost:hover{background:rgba(126,145,158,.1)}.scene-chip{background:rgba(126,145,158,.03)}.scene-chip.active{border-color:rgba(126,145,158,.3);background:linear-gradient(110deg,rgba(126,145,158,.1),rgba(126,145,158,.045))}.scene-chip:hover{background:rgba(126,145,158,.12)}
.quick-stats{padding-top:14px;margin-bottom:24px}.section-heading{margin-bottom:13px}.section-heading h2{font-size:19px}.scene-list{margin-bottom:17px;gap:7px}.dashboard-grid,.lower-grid{gap:18px;grid-template-columns:minmax(0,1fr) 252px}.provider-grid{gap:12px}.provider-card,.catalog-grid .provider-card{padding:16px;min-height:0}.provider-card-top{margin-bottom:10px}.provider-logo,body.light .provider-logo{width:36px;height:36px;border-radius:10px;font-size:18px;background:linear-gradient(135deg,rgba(126,145,158,.19),rgba(126,145,158,.06));border-color:rgba(126,145,158,.2);color:var(--accent)}.provider-logo.purple,body.light .provider-logo.purple{background:linear-gradient(135deg,rgba(126,145,158,.2),rgba(126,145,158,.06));border-color:rgba(126,145,158,.2);color:var(--violet)}.provider-logo.blue,body.light .provider-logo.blue{background:linear-gradient(135deg,rgba(126,145,158,.2),rgba(126,145,158,.06));border-color:rgba(126,145,158,.2);color:#80929e}.provider-card h3,.catalog-grid .provider-card h3{font-size:16px}.provider-card .provider-desc{font-size:14px;line-height:1.75;min-height:44px}.tags{margin:10px 0;gap:5px}.tag{background:rgba(126,145,158,.065)}.provider-meta{padding-top:10px}.provider-actions{margin-top:12px}.provider-actions .button,.catalog-grid .provider-actions .button{min-height:40px;font-size:13px;padding:7px 11px}.provider-actions .compare-button,.catalog-grid .compare-button{min-width:40px;min-height:40px;width:40px}.compare-button.selected{border-color:var(--accent);background:var(--cyan-tint)}.section-note{margin-top:11px}
.starter-panel{padding:18px;background:linear-gradient(140deg,rgba(126,145,158,.1),var(--panel));max-height:none}.starter-panel h2{font-size:18px}.starter-panel>p{margin-top:6px;font-size:13px}.steps{margin:18px 0;gap:12px}.step-number{background:rgba(126,145,158,.06);border-color:rgba(126,145,158,.2);color:var(--accent)}.steps strong{font-size:13px}.steps small{font-size:12px}.starter-panel .button{font-size:13px;color:var(--accent);min-height:40px}.lower-grid{margin-top:27px}.article-row{padding:14px 3px}.article-icon.purple{color:var(--violet);background:rgba(126,145,158,.09)}.topic-panel{padding:19px}.topic-panel h2{font-size:16px;margin-bottom:12px}.topic-item{min-height:63px}.topic-item>.icon{color:var(--accent)}.topic-item:nth-of-type(2)>.icon{color:var(--violet)}.topic-item:nth-of-type(3)>.icon{color:#80929e}.topic-item strong{font-size:13px}.footer{margin-top:32px;min-height:72px}
.page-title{margin-bottom:23px}.page-title h1{font-size:26px}.page-title p{font-size:14px;margin-top:6px}.page-grid{gap:16px}.content-card{padding:19px;gap:9px}.content-card h2{font-size:17px;line-height:1.5}.content-card .article-sub{padding-top:9px}.prose h1{font-size:27px}.compare-dock,body.light .compare-dock{background:var(--sidebar);border-color:rgba(126,145,158,.3);box-shadow:0 10px 35px rgba(82,97,107,.13)}.fact{background:rgba(126,145,158,.045)}.table-scroll{background:var(--panel)}.topic-panel,.content-card{background:linear-gradient(140deg,rgba(126,145,158,.055),var(--panel))}.nav-scrim{background:rgba(25,34,40,.45)}
.hero .button-primary,body.light .hero .button-primary{background:rgba(255,255,255,.94);color:#5e7280}.hero .button-primary:hover,body.light .hero .button-primary:hover{background:#fff}
.ambient-one{background:rgba(205,220,230,.08);opacity:.55}.ambient-two{background:rgba(195,215,229,.065);opacity:.5}
.brand-symbol{background:linear-gradient(140deg,rgba(238,245,250,.86),rgba(225,235,243,.74));border-color:rgba(127,149,165,.16);box-shadow:inset 0 1px 0 #fff,0 4px 11px rgba(80,103,119,.07)}
.main-nav a.active{background:linear-gradient(110deg,rgba(227,236,242,.8),rgba(226,237,244,.5));border-color:rgba(130,153,170,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.8)}.main-nav a:hover{background:rgba(153,171,184,.055)}.scene-chip.active{background:linear-gradient(110deg,rgba(226,234,240,.68),rgba(225,236,244,.56));border-color:rgba(117,141,159,.22)}.scene-chip:hover{background:rgba(153,171,184,.075)}
.search{background:rgba(255,255,255,.38)}.icon-button:hover{background:rgba(159,175,187,.075)}
body.light .glass{position:relative;isolation:isolate;background:var(--crystal-surface);border-color:rgba(255,255,255,.86);border-top-color:rgba(255,255,255,.98);border-bottom-color:rgba(166,193,213,.23);border-right-color:rgba(176,201,218,.19);outline:1px solid rgba(172,196,213,.13);outline-offset:-2px;box-shadow:inset 1px 1px 0 rgba(255,255,255,.94),inset -1px -1px 0 rgba(179,205,223,.12),0 3px 6px rgba(90,120,141,.035),0 15px 28px -12px rgba(87,119,142,.12);backdrop-filter:blur(8px) saturate(130%)}
.provider-card,.content-card{position:relative;isolation:isolate}.provider-card:before,.content-card:before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(145deg,rgba(255,255,255,.08),transparent 45%);border-radius:inherit}body.light .provider-card:before,body.light .content-card:before{background:linear-gradient(137deg,rgba(255,255,255,.32),rgba(255,255,255,.07) 30%,transparent 48%,rgba(236,244,249,.08))}body.light .provider-card:after,body.light .content-card:after,body.light .starter-panel:after,body.light .topic-panel:after{content:'';position:absolute;inset:1px;z-index:-1;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.37);background:linear-gradient(128deg,transparent 0 41%,rgba(255,255,255,.13) 43%,rgba(255,255,255,.02) 52%,transparent 58%),radial-gradient(ellipse at 100% 100%,rgba(212,230,242,.07),transparent 45%)}
body.light .provider-card:hover,body.light .content-card:hover{background:var(--crystal-hover);border-color:rgba(255,255,255,.96);border-bottom-color:rgba(148,180,203,.23);box-shadow:inset 1px 1px 0 #fff,inset -1px -1px 0 rgba(171,198,218,.14),0 5px 10px -5px rgba(93,124,146,.08),0 19px 32px -13px rgba(91,123,146,.17);transform:translateY(-3px)}
body.light .hero{background:var(--crystal-surface);border-color:rgba(255,255,255,.96);border-bottom-color:rgba(164,191,210,.2);color:var(--text);box-shadow:inset 1px 1px 0 #fff,inset -1px -1px 0 rgba(182,207,225,.13),0 15px 29px -13px rgba(93,123,145,.12)}body.light .hero:before{background:linear-gradient(135deg,rgba(255,255,255,.27),transparent 38%,rgba(255,255,255,.12) 54%,transparent 64%)}body.light .hero h1 span{color:#738da0}body.light .hero-copy>p{color:var(--muted)}
body.light .hero .button-primary{background:linear-gradient(115deg,rgba(233,242,248,.59),rgba(229,240,248,.51));border-color:rgba(255,255,255,.92);border-bottom-color:rgba(144,174,196,.2);color:#5b7485;box-shadow:inset 0 1px 0 #fff,0 4px 10px rgba(98,131,155,.055)}body.light .hero .button-primary:hover{background:linear-gradient(115deg,rgba(229,238,245,.74),rgba(226,238,247,.7))}body.light .hero .button-ghost{background:rgba(255,255,255,.26);border-color:rgba(147,176,196,.15);color:var(--muted)}body.light .hero .button-ghost:hover{background:rgba(255,255,255,.48)}
body.light .orbit{border-color:rgba(132,155,171,.15)}body.light .diagram-grid{background:linear-gradient(rgba(126,148,164,.075) 1px,transparent 1px),linear-gradient(90deg,rgba(126,148,164,.075) 1px,transparent 1px);background-size:26px 26px}
body.light .diagram-core{background:linear-gradient(135deg,rgba(255,255,255,.47),rgba(230,240,248,.18));border-color:rgba(255,255,255,.99);border-bottom-color:rgba(144,179,204,.22);box-shadow:inset 2px 2px 4px rgba(255,255,255,.93),inset -2px -2px 5px rgba(136,169,192,.08),4px 7px 13px rgba(89,123,148,.095),9px 14px 22px -12px rgba(98,133,158,.14);backdrop-filter:blur(7px) saturate(135%)}body.light .diagram-core strong{color:#7c99ad}body.light .diagram-core span{color:#7c8d9a}body.light .diagram-node{background:linear-gradient(130deg,rgba(255,255,255,.55),rgba(243,248,252,.22));border-color:rgba(255,255,255,.98);border-bottom-color:rgba(161,193,216,.18);color:#728491;box-shadow:inset 0 1px 0 #fff,0 6px 13px rgba(87,119,141,.075);backdrop-filter:blur(6px)}body.light .diagram-node .icon{color:#8da7b9}
.provider-logo,body.light .provider-logo{background:linear-gradient(135deg,rgba(225,237,246,.4),rgba(246,250,253,.16));border-color:rgba(255,255,255,.93);border-bottom-color:rgba(165,184,197,.18);color:#8595a1;box-shadow:inset 1px 1px 0 rgba(255,255,255,.91),0 3px 7px rgba(111,133,149,.05)}.provider-logo.purple,body.light .provider-logo.purple{background:linear-gradient(135deg,rgba(221,235,245,.42),rgba(243,248,252,.16));border-color:rgba(255,255,255,.94);border-bottom-color:rgba(152,186,211,.19);color:#86a2b6}.provider-logo.blue,body.light .provider-logo.blue{background:linear-gradient(135deg,rgba(229,240,247,.39),rgba(245,249,252,.16));border-color:rgba(255,255,255,.94);border-bottom-color:rgba(157,187,209,.18);color:#8ca5b7}
.tag{background:rgba(144,163,176,.045)}.starter-panel,.topic-panel,.content-card{background:linear-gradient(145deg,rgba(112,134,150,.045),var(--panel))}.step-number{background:rgba(154,174,188,.045);border-color:rgba(129,150,165,.15)}.fact{background:rgba(157,175,188,.035)}.compare-dock,body.light .compare-dock{border-color:rgba(145,168,185,.25);box-shadow:inset 0 1px 0 rgba(255,255,255,.65),0 10px 26px rgba(73,96,112,.1)}.nav-scrim{background:rgba(39,47,53,.4)}
body:not(.light) .main-nav a.active,body:not(.light) .scene-chip.active{background:linear-gradient(110deg,rgba(133,159,177,.14),rgba(128,154,173,.09));border-color:var(--border-bright)}body:not(.light) .brand-symbol{background:linear-gradient(140deg,rgba(159,181,197,.16),rgba(114,141,161,.12))}body:not(.light) .search{background:rgba(155,177,192,.035)}
body.light .sidebar{backdrop-filter:blur(12px) saturate(115%)}.ambient-one{background:rgba(210,228,241,.11);opacity:.55}.ambient-two{background:rgba(208,227,241,.12);opacity:.5}body.light .main-nav a.active{background:linear-gradient(110deg,rgba(231,241,248,.4),rgba(229,240,248,.33));border-color:rgba(145,175,196,.16)}body.light .scene-chip.active{background:linear-gradient(110deg,rgba(231,241,248,.4),rgba(228,239,247,.3));border-color:rgba(149,177,197,.18)}body.light .scene-chip{background:rgba(255,255,255,.2)}body.light .tag{background:rgba(151,179,199,.035)}body.light .step-number{background:rgba(236,244,250,.2);border-color:rgba(153,185,208,.13)}body.light .fact{background:linear-gradient(135deg,rgba(255,255,255,.35),rgba(239,246,251,.12))}body:not(.light) .glass{background:linear-gradient(145deg,rgba(55,68,78,.43),rgba(37,50,59,.25));box-shadow:inset 0 1px 0 rgba(216,232,244,.13),inset 0 -1px 0 rgba(144,176,198,.08),0 14px 28px -12px rgba(7,10,12,.3);backdrop-filter:blur(9px) saturate(125%)}
@media(min-width:1600px){.hero,body.light .hero{min-height:226px;padding:28px 34px}.hero h1{font-size:34px}.provider-card,.catalog-grid .provider-card{padding:18px}.provider-grid{gap:16px}.dashboard-grid,.lower-grid{grid-template-columns:minmax(0,1fr) 270px}}
@media(max-width:1200px){.dashboard-grid,.lower-grid{grid-template-columns:minmax(0,1fr) 238px}.hero,body.light .hero{padding:24px;grid-template-columns:minmax(0,1.5fr) minmax(210px,1fr)}.hero-diagram{transform:scale(.9)}.hero h1{font-size:28px}.node-a{left:-9px}.node-b{right:-10px}.provider-card,.catalog-grid .provider-card{padding:15px}}
@media(max-width:980px){.dashboard-grid,.lower-grid{grid-template-columns:1fr}.hero,body.light .hero{grid-template-columns:minmax(0,1.6fr) minmax(160px,1fr);min-height:205px}.hero-diagram{transform:scale(.82);margin:0}.hero h1{font-size:27px}.hero .hero-links{gap:8px}.hero .button{padding-inline:13px}.node-a{left:-24px}.node-b{right:-25px}.topic-panel{grid-template-columns:repeat(3,1fr)}.topic-item{border-bottom:0}}
@media(max-width:760px){.topbar{height:70px;margin-bottom:20px}.sidebar .brand{margin-bottom:28px}.hero,body.light .hero{padding:22px;min-height:204px;grid-template-columns:minmax(0,1.7fr) minmax(140px,1fr)}.hero h1{font-size:26px}.hero-diagram{width:auto;transform:scale(.73)}.hero-copy>p{font-size:14px;line-height:1.8}.quick-stats{margin-bottom:23px}.provider-card,.catalog-grid .provider-card{padding:15px}.catalog-grid .provider-logo{height:36px;width:36px}.provider-card .provider-desc{min-height:44px}.topic-panel{grid-template-columns:1fr}.topic-item{border-bottom:1px solid var(--border)}.page-title h1{font-size:25px}.content-card h2{font-size:17px}.footer{margin-top:28px}}
@media(max-width:600px){.provider-grid{grid-template-columns:1fr}.hero,body.light .hero{grid-template-columns:1fr}.hero-diagram{display:none}}
@media(max-width:480px){.hero,body.light .hero{grid-template-columns:1fr;min-height:181px;padding:23px 21px}.hero-diagram{display:none}.hero h1{font-size:26px;max-width:none;line-height:1.55}.hero-copy>p{max-width:none;font-size:14px;margin-top:7px}.hero-links{margin-top:16px;gap:9px}.hero .button{min-height:42px;padding:8px 14px}.provider-card,.catalog-grid .provider-card{padding:17px}.provider-card h3,.catalog-grid .provider-card h3{font-size:17px}.provider-card-top{margin-bottom:10px}.provider-logo{height:36px;width:36px;font-size:18px}.provider-card .provider-desc{min-height:0}.provider-actions .button,.provider-actions .compare-button{min-height:44px}.provider-actions .compare-button{min-width:44px;width:44px}.provider-card .tag{font-size:12px}.content-card h2{font-size:18px}.page-title h1{font-size:24px}.quick-stats{padding-top:13px}.section-heading h2{font-size:18px}.scene-chip{padding:8px 10px}.prose h1{font-size:24px}}

.airport-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:stretch}
.airport-grid .airport-card{grid-column:auto;padding:20px;min-height:0}
.airport-identity{display:grid;grid-template-columns:64px minmax(0,1fr);column-gap:12px;row-gap:4px;align-items:center;margin-bottom:21px;min-width:0}
.airport-card .provider-logo,body.light .airport-card .provider-logo{width:64px;height:64px;grid-row:span 2;border-radius:18px;font-size:30px;flex-shrink:0;overflow:hidden}
.airport-identity h3{align-self:end;line-height:1.4}
.airport-identity .demo-badge{justify-self:start;align-self:start;margin-left:0}
.airport-card .provider-logo img{width:100%;height:100%;object-fit:cover}
.airport-card h3{font-size:18px;font-weight:600;overflow-wrap:anywhere}
.airport-health,.airport-plan{display:grid;margin:0;gap:14px;font-variant-numeric:tabular-nums}
.airport-health{grid-template-columns:repeat(2,minmax(0,1fr))}
.airport-health>div,.airport-plan>div{min-width:0}
.airport-card dt{font-size:14px;color:var(--muted);line-height:1.5}
.airport-card dd{margin:7px 0 0;font-size:23px;font-weight:600;line-height:1.3;color:var(--text);overflow-wrap:anywhere}
.airport-card dd small{font-size:12px;font-weight:400;color:var(--muted);margin-left:4px;white-space:nowrap}
.airport-tags{display:flex;flex-wrap:wrap;gap:6px;align-content:flex-start;min-height:30px;margin:18px 0 16px}
.airport-card .tag{font-size:12px;padding:4px 8px;border:1px solid var(--border);border-radius:6px;background:rgba(255,255,255,.24)}
.airport-plan{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding-top:16px;border-top:1px solid var(--border);margin-top:auto}
.airport-plan dd{font-size:19px}
.airport-card .provider-actions{margin-top:19px}
.airport-card .provider-actions .button{min-height:44px;font-size:14px;padding:8px 10px}
.airport-card .provider-actions .compare-button{height:44px;width:44px;min-width:44px;min-height:44px}
.home-support{display:grid;gap:18px;align-content:start}
.home-support .starter-panel{height:auto}
@media(max-width:1100px){.airport-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.airport-grid{grid-template-columns:minmax(0,1fr)}.airport-grid .airport-card{padding:20px}.airport-health{gap:20px}.airport-tags{margin-block:18px}.airport-card dd{font-size:24px}.airport-plan dd{font-size:20px}}

.demo-badge{margin-left:auto;padding:3px 6px;border-radius:4px;font-size:12px;line-height:1.5;color:var(--muted);border:1px solid var(--border);white-space:nowrap}
.airport-card dt small{font-size:12px;font-weight:400;color:var(--muted)}
.airport-card .provider-actions{display:grid;grid-template-columns:1fr;gap:8px;margin-top:20px}
.airport-card .provider-actions .button{min-width:0;min-height:44px;padding:8px 6px;font-size:14px;border-radius:8px}
.button-primary,body.light .button-primary,body.light .hero .button-primary,.airport-action-buy,body.light .airport-action-buy{background:linear-gradient(135deg,#2f5268,#244151);color:#fff;border-color:#294b60;box-shadow:0 4px 10px rgba(35,66,85,.12)}
.button-primary:hover,body.light .button-primary:hover,body.light .hero .button-primary:hover,.airport-action-buy:hover,body.light .airport-action-buy:hover{background:linear-gradient(135deg,#3b647d,#2e5064);color:#fff;border-color:#365d74}
.button-ghost,body.light .button-ghost,body.light .hero .button-ghost{background:rgba(255,255,255,.93);color:#354b59;border-color:rgba(84,111,130,.27);box-shadow:none}
.button-ghost:hover,body.light .button-ghost:hover,body.light .hero .button-ghost:hover{background:#fff;color:#28495e;border-color:rgba(84,111,130,.5)}
body:not(.light) .button-ghost{background:rgba(255,255,255,.08);color:var(--text);border-color:var(--border-bright)}
.lower-grid{grid-template-columns:minmax(0,1.65fr) minmax(300px,.8fr);gap:40px;margin-top:36px}
.home-support{gap:30px}
.onboarding-guide,.topic-guide{padding:0;background:none;border:0;border-radius:0;box-shadow:none;backdrop-filter:none}
.onboarding-guide h2,.topic-guide h2{font-size:19px;font-weight:600;line-height:1.5}
.onboarding-guide>p{margin-top:5px;color:var(--muted);font-size:14px}
.onboarding-steps{display:grid;gap:16px;margin:20px 0 12px;padding:0;list-style:none}
.onboarding-steps li{display:flex;gap:15px;align-items:flex-start}
.onboarding-number{font-size:14px;font-weight:600;color:var(--accent);line-height:1.8;width:22px;flex-shrink:0}
.onboarding-steps strong{display:block;font-size:14px;font-weight:500}
.onboarding-steps small{display:block;font-size:13px;color:var(--muted);margin-top:3px}
.guide-read-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px;font-weight:500;color:var(--accent);text-decoration:underline;text-decoration-color:var(--border-bright);text-underline-offset:5px}
.guide-read-link:hover{text-decoration-color:currentColor}
.topic-guide{padding-top:24px;border-top:1px solid var(--border)}
.topic-guide h2{margin-bottom:9px}
.guide-topic-link{display:flex;align-items:center;gap:13px;padding:13px 0;min-height:70px;border-bottom:1px solid var(--border)}
.guide-topic-link:last-child{border:0;padding-bottom:0}
.guide-topic-link>.icon{color:var(--accent);width:20px;flex-shrink:0}
.guide-topic-link strong{display:block;font-size:14px;font-weight:500}
.guide-topic-link small{display:block;font-size:13px;margin-top:3px;color:var(--muted)}
.guide-topic-link:hover strong{color:var(--accent)}
.purchase-preview{position:fixed;inset:0;width:min(430px,calc(100% - 40px));max-height:calc(100vh - 40px);padding:32px;border:1px solid var(--border-bright);border-radius:18px;background:var(--bg);color:var(--text);box-shadow:0 24px 70px rgba(24,43,55,.2)}
.purchase-preview::backdrop{background:rgba(31,50,65,.3);backdrop-filter:blur(5px)}
.purchase-close{position:absolute;right:16px;top:16px}
.purchase-kicker{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
.purchase-preview h2{font-size:23px;font-weight:600;margin-right:10px}
.purchase-price{font-size:38px;font-weight:600;line-height:1.3;margin-top:24px}
.purchase-preview small{font-size:14px;font-weight:400;color:var(--muted);margin-left:4px}
.purchase-facts{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:22px 0;padding-block:18px;border-block:1px solid var(--border)}
.purchase-facts dt{font-size:14px;color:var(--muted)}
.purchase-facts dd{font-size:23px;margin:7px 0 0;font-weight:500}
.purchase-note{font-size:14px;color:var(--muted);line-height:1.8}
@media(max-width:980px){.lower-grid{grid-template-columns:1fr;gap:32px}.home-support{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.topic-guide{padding-top:0;border-top:0}}
@media(max-width:600px){.home-support{grid-template-columns:1fr;gap:26px}.topic-guide{padding-top:24px;border-top:1px solid var(--border)}.purchase-preview{padding:28px 24px}.purchase-preview h2{font-size:21px}.airport-card .airport-identity{gap:10px}}

/* A quiet, consistent palette separates values from their labels. */
.airport-card{--airport-ink:#d6e6ef;--airport-label:#a5b8c4;--airport-blue:#8bb9d4;--airport-green:#91c8b9;--airport-gold:#d3bd8c;--airport-tag:#b3c9d6}
body.light .airport-card{--airport-ink:#294658;--airport-label:#667a88;--airport-blue:#3c6880;--airport-green:#3d7769;--airport-gold:#8b7145;--airport-tag:#587184}
.airport-card h3,.airport-card .airport-price dd{color:var(--airport-ink)}
.airport-card dt,.airport-card dt small,.airport-card dd small,.airport-card .demo-badge{color:var(--airport-label)}
.airport-card .airport-latency dd,.airport-card .airport-traffic dd{color:var(--airport-blue)}
.airport-card .airport-availability dd{color:var(--airport-green)}
.airport-card .airport-score dd{color:var(--airport-gold)}
.airport-card .tag{color:var(--airport-tag)}
.airport-card .provider-logo,.airport-card .provider-logo.purple,.airport-card .provider-logo.blue{color:var(--airport-blue);background:linear-gradient(145deg,rgba(116,166,195,.15),rgba(197,214,225,.05));border-color:rgba(116,166,195,.2)}
body.light .airport-card .provider-logo,body.light .airport-card .provider-logo.purple,body.light .airport-card .provider-logo.blue{color:var(--airport-blue);background:linear-gradient(145deg,rgba(191,220,236,.48),rgba(229,237,243,.2));border-color:rgba(139,174,195,.25);box-shadow:inset 1px 1px 0 rgba(255,255,255,.96),0 4px 10px rgba(84,119,141,.08)}

.home-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:32px;min-height:156px;padding:30px 32px;border-radius:18px;background:linear-gradient(110deg,rgba(30,49,63,.78),rgba(36,58,73,.52));border-color:var(--border-bright);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 10px 24px -14px rgba(0,0,0,.2)}
body.light .home-hero{background:linear-gradient(110deg,rgba(255,255,255,.86),rgba(236,246,252,.63));border-color:rgba(193,214,227,.35);box-shadow:inset 1px 1px 0 #fff,inset 0 -1px 0 rgba(174,201,220,.12),0 12px 26px -16px rgba(71,106,130,.14)}
.home-hero-copy{min-width:0}
.home-hero h1{margin:0;font-size:clamp(26px,2.3vw,34px);font-weight:600;line-height:1.35;letter-spacing:-.6px;color:var(--text)}
body.light .home-hero h1{color:#2c4352}
.home-hero p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted)}
.home-hero-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.home-hero-actions .button{min-height:44px;min-width:112px;padding:10px 20px;font-size:14px;font-weight:500;border-radius:9px}
@media(max-width:860px){.home-hero{grid-template-columns:1fr;gap:20px;min-height:0;padding:26px 28px}.home-hero h1{font-size:28px}}
@media(max-width:480px){.home-hero{gap:19px;padding:24px}.home-hero h1{font-size:26px;letter-spacing:-.4px}.home-hero p{margin-top:8px;font-size:13px}.home-hero-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.home-hero-actions .button{min-width:0;padding:10px 12px}}

/* Bright aqua glass surfaces; one shared ink palette keeps the cards calm. */
body.light{--crystal-surface:linear-gradient(135deg,rgba(191,235,241,.76),rgba(255,255,255,.56) 48%,rgba(187,217,249,.68));--crystal-hover:linear-gradient(135deg,rgba(184,233,240,.84),rgba(255,255,255,.66) 48%,rgba(178,212,248,.76))}
body.light .airport-card{--card-start:175,235,230;--card-end:184,217,250;--card-light:130,220,219;--airport-ink:#244355;--airport-label:#526675;--airport-blue:#2d607d;--airport-green:#2b6858;--airport-gold:#765e35;--airport-tag:#466274;background:radial-gradient(ellipse at 0 0,rgba(var(--card-light),.22),transparent 52%),linear-gradient(135deg,rgba(var(--card-start),.76),rgba(255,255,255,.54) 48%,rgba(var(--card-end),.72));border-color:rgba(160,205,224,.26);border-top-color:rgba(255,255,255,.95);outline-color:rgba(178,208,224,.2);box-shadow:inset 1px 1px 0 rgba(255,255,255,.96),inset -1px -1px 0 rgba(157,194,218,.16),0 5px 11px -7px rgba(49,101,130,.15),0 18px 30px -17px rgba(52,108,143,.2)}
body.light .airport-card[data-provider="baoyun"]{--card-start:177,209,255;--card-end:174,232,244;--card-light:151,191,250}
body.light .airport-card[data-provider="andi"]{--card-start:186,238,216;--card-end:181,221,242;--card-light:151,221,195}
body.light .airport-card[data-provider="xinglian"]{--card-start:207,225,245;--card-end:175,224,237;--card-light:175,200,234}
body.light .airport-card:before{background:linear-gradient(155deg,rgba(255,255,255,.28),transparent 48%)}
body.light .airport-card:after{box-shadow:inset 0 0 0 1px rgba(255,255,255,.48);background:linear-gradient(128deg,transparent 37%,rgba(255,255,255,.19) 43%,transparent 57%)}
body.light .airport-card:hover{background:radial-gradient(ellipse at 0 0,rgba(var(--card-light),.29),transparent 52%),linear-gradient(135deg,rgba(var(--card-start),.84),rgba(255,255,255,.64) 48%,rgba(var(--card-end),.8));border-color:rgba(145,195,220,.36);border-top-color:#fff;box-shadow:inset 1px 1px 0 #fff,inset -1px -1px 0 rgba(151,190,216,.17),0 7px 13px -7px rgba(49,101,130,.17),0 22px 34px -16px rgba(52,108,143,.24)}
body.light .airport-card .provider-logo,body.light .airport-card .provider-logo.purple,body.light .airport-card .provider-logo.blue{background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(var(--card-start),.48));border-color:rgba(255,255,255,.88);border-bottom-color:rgba(135,175,200,.25);box-shadow:inset 1px 1px 0 #fff,0 5px 12px -5px rgba(61,111,142,.16)}
body.light .airport-card .tag,body.light .airport-card .demo-badge{background:rgba(255,255,255,.42);border-color:rgba(91,131,155,.16)}
body.light .home-hero{background:linear-gradient(110deg,rgba(206,242,241,.78),rgba(255,255,255,.76) 52%,rgba(192,222,254,.65));border-color:rgba(162,202,227,.29);border-top-color:rgba(255,255,255,.96);box-shadow:inset 1px 1px 0 #fff,inset 0 -1px 0 rgba(165,198,223,.13),0 14px 26px -17px rgba(50,101,139,.19)}

.tutorial-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tutorial-card{display:flex;flex-direction:column;padding:0 20px 19px;overflow:hidden;gap:10px}
.tutorial-cover{margin:0 -20px 5px;aspect-ratio:20/11;overflow:hidden;border-bottom:1px solid var(--border)}
.tutorial-cover img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .3s}
.tutorial-card:hover .tutorial-cover img{transform:scale(1.025)}
.tutorial-card .card-overline{font-size:12px;gap:12px}
.tutorial-card h2{font-size:19px;line-height:1.5}
.tutorial-card>p{font-size:14px;line-height:1.8;flex:1}
.tutorial-card .article-sub{font-size:12px;border-top:1px solid var(--border);padding-top:12px;margin-top:3px}
.home-tutorial-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.tutorial-layout{grid-template-columns:minmax(0,1fr) 245px;align-items:start}
.tutorial-prose{padding:32px;background:var(--panel)}
body.light .tutorial-prose{background:linear-gradient(145deg,rgba(244,250,253,.72),rgba(255,255,255,.98) 30%);border-color:rgba(130,175,202,.16)}
.tutorial-kicker{font-size:13px;letter-spacing:.03em;color:var(--accent);margin-bottom:12px}
.tutorial-prose h1{font-size:clamp(26px,2.5vw,34px);line-height:1.4;max-width:780px}
.tutorial-prose .article-sub{margin:16px 0;color:var(--muted);font-size:13px}
.tutorial-prose .tutorial-intro{font-size:17px;line-height:1.9;color:var(--muted);margin-bottom:24px}
.tutorial-figure{margin:24px 0 32px}
.tutorial-figure img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--border)}
.tutorial-figure figcaption{font-size:13px;line-height:1.7;margin-top:10px;color:var(--muted)}
.tutorial-section{scroll-margin-top:24px}
.tutorial-section h2{font-size:22px;margin:32px 0 14px;font-weight:600}
.tutorial-section p{font-size:16px;line-height:1.95;margin:0 0 14px}
.tutorial-steps{counter-reset:tutorial-step;list-style:none;padding:0;margin:18px 0 24px;display:grid;gap:12px}
.tutorial-steps li{position:relative;padding:14px 16px 14px 52px;background:var(--cyan-tint);border-radius:9px;font-size:15px;line-height:1.8}
.tutorial-steps li:before{counter-increment:tutorial-step;content:counter(tutorial-step,decimal-leading-zero);position:absolute;left:16px;top:15px;color:var(--accent);font-size:14px;font-weight:600}
.tutorial-sources{margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.tutorial-sources h2{font-size:20px;margin:0 0 12px}
.tutorial-sources p,.tutorial-sources li{font-size:14px;line-height:1.8}
.tutorial-sources ul{padding-left:20px;margin-top:14px;display:grid;gap:9px;overflow-wrap:anywhere}
.tutorial-sources a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.tutorial-end{margin-top:28px;padding-top:20px;border-top:1px solid var(--border);font-size:14px;color:var(--muted)}
.related-heading{margin-top:26px}
@media(max-width:1200px){.tutorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tutorial-layout{grid-template-columns:minmax(0,1fr) 210px}}
@media(max-width:980px){.tutorial-layout{grid-template-columns:1fr}.tutorial-layout .detail-side{display:none}}
@media(max-width:600px){.tutorial-grid,.home-tutorial-grid{grid-template-columns:1fr}.tutorial-prose{padding:24px 20px}.tutorial-prose h1{font-size:26px}.tutorial-section h2{font-size:21px}.tutorial-prose .tutorial-intro{font-size:16px}.tutorial-card h2{font-size:20px}.tutorial-cover{margin-bottom:6px}}

.tutorial-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.tutorial-card{padding:16px 16px 14px;gap:10px;min-height:0}
.tutorial-cover{margin:0 -14px 3px;aspect-ratio:40/13}
.tutorial-card h2{font-size:16px;line-height:1.45;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.tutorial-card>p{font-size:13px;line-height:1.7;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;flex:0 0 auto}
.tutorial-card .card-overline{font-size:11px;gap:6px;margin-bottom:0}
.tutorial-card .article-sub{font-size:12px;padding-top:8px;margin-top:auto;line-height:1.6}
.home-tutorial-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tutorial-layout .detail-side{position:sticky;top:24px}
@media(max-width:1199px){.tutorial-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.home-tutorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:899px){.tutorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.tutorial-grid,.home-tutorial-grid{grid-template-columns:1fr}.tutorial-cover{aspect-ratio:3.4/1}.tutorial-card h2{font-size:17px}.tutorial-card>p{font-size:14px}.tutorial-card .card-overline{font-size:12px}}