:root { color-scheme: dark; font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; color: #f2f6f8; background: #06080d; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 74% 12%, rgba(59,229,227,.12), transparent 30rem), radial-gradient(circle at 18% 38%, rgba(93,73,216,.10), transparent 26rem), #06080d; }
a { color: inherit; text-decoration: none; }
.site-header, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header { height: 82px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 850; letter-spacing: -.03em; }
.brand span { width: 38px; height: 38px; display: grid; place-items: center; color: #061012; border-radius: 12px; background: linear-gradient(135deg, #63e8ee, #55e7b5); font-size: 14px; }
.site-header nav, footer nav { display: flex; gap: 28px; color: #89939e; font-size: 14px; }
.site-header nav a:hover, footer nav a:hover { color: #65e4e0; }
.hero { min-height: 660px; display: grid; grid-template-columns: minmax(0,1fr) minmax(430px,.9fr); align-items: center; gap: 70px; }
.eyebrow { color: #63ddd9 !important; font-size: 12px !important; font-weight: 800; letter-spacing: .2em; }
.hero h1 { margin: 18px 0 24px; font-size: clamp(46px,6vw,78px); line-height: 1.08; letter-spacing: -.055em; }
.hero h1 em { color: transparent; background: linear-gradient(100deg,#67e9e1,#9ae89d); background-clip: text; font-style: normal; }
.hero-copy > p:not(.eyebrow) { max-width: 610px; color: #9aa4af; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 12px; margin: 34px 0 18px; }
.hero-actions a { min-width: 142px; height: 48px; display: grid; place-items: center; border-radius: 13px; font-size: 14px; font-weight: 800; }
.hero-actions .primary { color: #061012; background: linear-gradient(120deg,#65e6e6,#6beaab); }
.hero-actions .secondary { color: #cad1d8; border: 1px solid #29313b; background: rgba(15,19,26,.7); }
.hero-copy small { color: #5f6974; }
.visual { height: 510px; position: relative; perspective: 900px; }
.orbit { position: absolute; inset: 70px 30px; border: 1px solid rgba(98,230,226,.22); border-radius: 50%; transform: rotate(-18deg); box-shadow: inset 0 0 80px rgba(75,222,221,.04); }
.visual-core { width: 210px; height: 210px; position: absolute; left: 50%; top: 50%; display: flex; align-items: center; justify-content: center; flex-direction: column; transform: translate(-50%,-50%); border: 1px solid rgba(106,239,225,.32); border-radius: 50%; background: radial-gradient(circle at 50% 35%,#1c4246,#0c141c 68%); box-shadow: 0 0 80px rgba(76,224,220,.15); }
.visual-core i { width: 54px; height: 54px; display: grid; place-items: center; color: #061012; border-radius: 50%; background: #68e5e0; font-style: normal; }
.visual-core strong { margin-top: 14px; font-size: 24px; }
.visual-core span { margin-top: 5px; color: #6e7a85; font-size: 8px; letter-spacing: .12em; }
.card { width: 185px; height: 120px; position: absolute; padding: 18px; display: flex; justify-content: flex-end; flex-direction: column; overflow: hidden; border: 1px solid rgba(105,231,225,.24); border-radius: 18px; background: linear-gradient(145deg,rgba(47,94,112,.86),rgba(13,18,27,.94)); box-shadow: 0 22px 48px rgba(0,0,0,.32); }
.card::before { content: ""; position: absolute; inset: 0; opacity: .5; background: radial-gradient(circle at 70% 20%,#7bf3e0,transparent 34%); }
.card b, .card span { z-index: 1; }
.card b { font-size: 16px; }
.card span { margin-top: 6px; color: #a5b1ba; font-size: 10px; }
.card-a { left: 0; top: 64px; transform: rotateY(18deg) rotateZ(-7deg); animation: float 5.2s ease-in-out infinite; }
.card-b { right: 0; top: 135px; transform: rotateY(-20deg) rotateZ(7deg); animation: float 6s ease-in-out infinite reverse; }
.card-c { left: 45px; bottom: 35px; transform: rotateY(14deg) rotateZ(5deg); animation: float 5.6s ease-in-out infinite .8s; }
@keyframes float { 50% { translate: 0 -14px; } }
.metrics { display: grid; grid-template-columns: repeat(4,1fr); margin-bottom: 110px; border-block: 1px solid #171c24; }
.metrics div { padding: 30px; text-align: center; border-right: 1px solid #171c24; }
.metrics div:last-child { border: 0; }
.metrics strong, .metrics span { display: block; }
.metrics strong { color: #6de6df; font-size: 26px; }
.metrics span { margin-top: 7px; color: #707a85; font-size: 12px; }
.section { padding: 50px 0 110px; }
.section h2 { margin: 12px 0 40px; font-size: clamp(32px,4vw,52px); letter-spacing: -.04em; }
.feature-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.feature-grid article { min-height: 205px; padding: 28px; border: 1px solid #1d242d; border-radius: 20px; background: rgba(14,18,25,.82); }
.feature-grid span { color: #55d8d3; font-size: 11px; letter-spacing: .1em; }
.feature-grid h3 { margin: 28px 0 10px; font-size: 21px; }
.feature-grid p, .membership > div:first-child > p:not(.eyebrow) { color: #818c97; line-height: 1.8; }
.membership { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.membership h2 { margin-bottom: 20px; }
.plans { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.plans article { min-height: 184px; padding: 25px 16px; position: relative; display: flex; align-items: center; flex-direction: column; border: 1px solid #232a34; border-radius: 18px; background: #0e1219; }
.plans article.recommended { border-color: rgba(102,230,224,.55); background: linear-gradient(160deg,rgba(37,93,92,.45),#11151d); }
.plans em { position: absolute; top: -10px; padding: 4px 10px; color: #061012; border-radius: 10px; background: #6ae5df; font-size: 10px; font-style: normal; }
.plans b { color: #aab3bc; font-size: 13px; }
.plans strong { margin: 25px 0 7px; font-size: 27px; }
.plans span { color: #69737f; font-size: 11px; }
.membership > small { grid-column: 2; color: #59636e; }
footer { min-height: 170px; padding: 36px 0; display: grid; grid-template-columns: 1fr auto; align-items: center; border-top: 1px solid #171c24; }
footer p { color: #66717c; font-size: 12px; }
footer > small { color: #4e5863; font-size: 11px; }
@media (max-width: 850px) { .site-header nav { display: none; } .hero { grid-template-columns: 1fr; padding-top: 70px; } .visual { height: 440px; } .metrics { grid-template-columns: repeat(2,1fr); } .metrics div:nth-child(2) { border-right: 0; } .feature-grid, .membership { grid-template-columns: 1fr; } .membership > small { grid-column: 1; } }
@media (max-width: 560px) { .site-header, main, footer { width: min(100% - 28px,1180px); } .hero { min-height: 0; gap: 20px; } .hero h1 { font-size: 45px; } .visual { height: 360px; scale: .8; margin-inline: -40px; } .metrics div { padding: 22px 8px; } .plans { grid-template-columns: 1fr; } .plans article { min-height: 130px; } footer { grid-template-columns: 1fr; gap: 26px; } footer nav { flex-wrap: wrap; gap: 14px 22px; } }