@charset "UTF-8";

:root {
  --ink: #082f3e;
  --ink-soft: #4e6c76;
  --ocean: #066b89;
  --ocean-deep: #032b3d;
  --ocean-dark: #021d2c;
  --aqua: #39d6d4;
  --aqua-soft: #dff8f4;
  --sun: #ffcb62;
  --coral: #ef7758;
  --paper: #fffaf0;
  --white: #ffffff;
  --line: rgba(8, 92, 112, .14);
  --shadow: 0 24px 70px rgba(3, 47, 62, .14);
  --radius-lg: clamp(24px, 3vw, 42px);
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
body::selection { color: var(--ocean-deep); background: var(--sun); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
body.is-dialog-open { overflow: hidden; }
.container { width: var(--container); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; left: 16px; top: 12px; padding: 10px 16px; border-radius: 99px; color: white; background: var(--ocean-deep); transform: translateY(-160%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; z-index: 100; top: 16px; left: 50%; width: min(1180px, calc(100% - 32px)); height: 66px; padding: 8px 10px 8px 18px; display: flex; align-items: center; gap: 24px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: white; background: rgba(3, 43, 61, .66); box-shadow: 0 12px 36px rgba(0, 20, 32, .16); backdrop-filter: blur(18px); transform: translateX(-50%); transition: top .35s ease, background .35s ease, box-shadow .35s ease; }
.site-header.is-scrolled { top: 8px; background: rgba(3, 43, 61, .92); box-shadow: 0 16px 42px rgba(0, 20, 32, .25); }
.brand { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: var(--ocean-deep); background: var(--sun); }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 17px; letter-spacing: .08em; }
.brand small { margin-top: 2px; color: rgba(255,255,255,.58); font-size: 8px; letter-spacing: .18em; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.site-nav a { position: relative; padding: 12px 15px; border-radius: 999px; color: rgba(255,255,255,.78); font-size: 14px; font-weight: 700; transition: color .2s ease, background .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a.is-active { color: white; background: rgba(255,255,255,.1); outline: none; }
.header-cta { flex: 0 0 auto; padding: 13px 20px; border: 0; border-radius: 999px; color: var(--ocean-deep); background: var(--sun); cursor: pointer; font-size: 14px; font-weight: 900; transition: transform .2s ease, filter .2s ease; }
.header-cta:hover { transform: translateY(-2px); filter: brightness(1.05); }

.hero { position: relative; min-height: 920px; overflow: hidden; color: white; background: linear-gradient(125deg, rgba(2, 31, 45, .98) 10%, rgba(3, 63, 82, .91) 54%, rgba(3, 58, 79, .54)), url("../images/hero/ocean-hero.png") center/cover; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: auto 0 0; height: 210px; background: linear-gradient(transparent, var(--paper)); z-index: -1; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -2; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 56px 56px; mask-image: linear-gradient(to bottom, black, transparent 75%); }
.hero-grid { min-height: 880px; padding-top: 140px; padding-bottom: 120px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); align-items: center; gap: clamp(40px, 7vw, 110px); }
.hero-copy { position: relative; z-index: 3; }
.eyebrow { margin: 0 0 24px; display: inline-flex; align-items: center; gap: 11px; color: #bff8f4; font-size: 13px; font-weight: 900; letter-spacing: .22em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 2px; background: var(--sun); box-shadow: 10px 0 var(--sun); }
.hero h1 { max-width: 720px; margin: 0; color: white; font-size: clamp(58px, 7.2vw, 102px); line-height: .98; letter-spacing: -.07em; }
.hero h1 em { position: relative; display: inline-block; margin-top: .1em; color: var(--sun); font-style: normal; text-shadow: 0 8px 40px rgba(255, 203, 98, .18); }
.hero h1 em::after { content: ""; position: absolute; z-index: -1; left: 0; right: 0; bottom: .03em; height: .15em; border-radius: 99px; background: var(--coral); transform: rotate(-1deg); }
.hero-lead { max-width: 650px; margin: 34px 0 0; color: rgba(236, 251, 251, .78); font-size: clamp(16px, 1.6vw, 20px); line-height: 1.9; }
.hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 14px; }
.button { min-height: 52px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 15px; border: 1px solid transparent; border-radius: 999px; cursor: pointer; font-size: 15px; font-weight: 900; transition: transform .25s ease, box-shadow .25s ease, background .25s ease; }
.button span { font-size: 20px; transition: transform .25s ease; }
.button:hover { transform: translateY(-3px); }
.button:hover span { transform: translateX(4px); }
.button-primary { color: var(--ocean-deep); background: var(--sun); box-shadow: 0 16px 36px rgba(255, 190, 62, .22); }
.button-ghost { border-color: rgba(255,255,255,.24); color: white; background: rgba(255,255,255,.06); backdrop-filter: blur(8px); }
.button-ghost:hover { background: rgba(255,255,255,.13); }
.hero-stats { margin: 50px 0 0; display: flex; flex-wrap: wrap; gap: 0; }
.hero-stats div { min-width: 120px; padding: 0 24px; border-left: 1px solid rgba(255,255,255,.18); }
.hero-stats div:first-child { padding-left: 0; border-left: 0; }
.hero-stats dt { color: white; font-size: 24px; font-weight: 900; }
.hero-stats dd { margin: 5px 0 0; color: rgba(255,255,255,.52); font-size: 12px; }
.hero-visual { position: relative; min-height: 650px; display: grid; place-items: center; }
.phone-frame { position: relative; overflow: hidden; border: 7px solid rgba(255,255,255,.84); border-radius: 36px; background: #0b3547; box-shadow: 0 30px 70px rgba(0, 23, 34, .3); }
.phone-frame::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, rgba(255,255,255,.16), transparent 20%, transparent 75%, rgba(255,255,255,.06)); }
.phone-frame img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.phone-speaker { position: absolute; z-index: 3; left: 50%; top: 10px; width: 70px; height: 17px; border-radius: 99px; background: #052c3b; transform: translateX(-50%); }
.hero-phone { z-index: 2; width: min(330px, 72vw); height: 650px; transform: rotate(4deg); animation: phone-float 6s ease-in-out infinite; }
.orbit { position: absolute; border: 1px solid rgba(124, 242, 238, .24); border-radius: 50%; }
.orbit::before { content: ""; position: absolute; width: 12px; height: 12px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 18px var(--sun); }
.orbit-one { width: 510px; aspect-ratio: 1; animation: orbit-spin 16s linear infinite; }
.orbit-one::before { left: 9%; top: 18%; }
.orbit-two { width: 640px; aspect-ratio: 1; border-style: dashed; animation: orbit-spin 28s linear reverse infinite; }
.orbit-two::before { right: 1%; top: 50%; background: var(--aqua); box-shadow: 0 0 18px var(--aqua); }
.floating-card { position: absolute; z-index: 4; min-width: 170px; padding: 15px 18px; border: 1px solid rgba(255,255,255,.2); border-radius: 18px; background: rgba(5, 56, 74, .73); box-shadow: 0 18px 40px rgba(0, 26, 38, .22); backdrop-filter: blur(14px); animation: card-float 5s ease-in-out infinite; }
.floating-card b, .floating-card span { display: block; }
.floating-card b { color: white; font-size: 15px; }
.floating-card span { margin-top: 5px; color: rgba(255,255,255,.6); font-size: 11px; }
.floating-card-top { right: -10px; top: 90px; }
.floating-card-bottom { left: -32px; bottom: 95px; animation-delay: -2.4s; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(20px); opacity: .3; }
.hero-glow-one { right: 4%; top: 7%; width: 350px; height: 350px; background: var(--aqua); animation: glow-drift 9s ease-in-out infinite; }
.hero-glow-two { left: 22%; bottom: 5%; width: 240px; height: 240px; background: var(--sun); animation: glow-drift 12s ease-in-out reverse infinite; }
.scroll-cue { position: absolute; z-index: 3; left: 50%; bottom: 62px; display: flex; flex-direction: column; align-items: center; gap: 7px; color: rgba(3,47,62,.58); font-size: 10px; font-weight: 800; letter-spacing: .18em; transform: translateX(-50%); }
.scroll-cue span { width: 25px; height: 39px; border: 2px solid rgba(3,47,62,.32); border-radius: 99px; }
.scroll-cue span::before { content: ""; width: 4px; height: 8px; display: block; margin: 7px auto; border-radius: 99px; background: var(--ocean); animation: scroll-dot 1.7s ease-in-out infinite; }

.section { position: relative; padding: clamp(90px, 11vw, 150px) 0; overflow: hidden; }
.section-heading { max-width: 760px; margin: 0 0 clamp(45px, 6vw, 76px); }
.section-heading h2, .benefits-copy h2, .vault-copy h2 { margin: 0; color: var(--ink); font-size: clamp(40px, 5vw, 68px); line-height: 1.08; letter-spacing: -.055em; }
.section-heading > p:last-child, .section-intro { max-width: 700px; margin: 24px 0 0; color: var(--ink-soft); font-size: clamp(16px, 1.5vw, 19px); line-height: 1.85; }
.section-kicker { margin: 0 0 17px; color: var(--coral); font-size: 12px; font-weight: 900; letter-spacing: .24em; }
.section-route { background: var(--paper); }
.section-route::before { content: ""; position: absolute; top: 14%; right: -180px; width: 440px; height: 440px; border: 70px solid rgba(57, 214, 212, .07); border-radius: 50%; }
.route-grid { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; list-style: none; }
.route-card { position: relative; min-height: 430px; padding: clamp(18px, 2vw, 26px); display: grid; grid-template-columns: minmax(150px, .7fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 34px); align-items: center; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.83); box-shadow: 0 16px 50px rgba(6, 59, 76, .07); transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease; }
.route-card:hover { z-index: 2; border-color: rgba(18, 167, 178, .3); box-shadow: var(--shadow); transform: translateY(-8px); }
.route-image { position: relative; width: 100%; height: 375px; overflow: hidden; border-radius: 27px; background: var(--ocean-deep); }
.route-image img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.route-card:hover .route-image img { transform: scale(1.035); }
.step { position: absolute; left: 13px; top: 13px; width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; color: var(--ocean-deep); background: var(--sun); box-shadow: 0 8px 18px rgba(0,0,0,.15); font-size: 14px; font-weight: 900; }
.route-copy small { color: var(--coral); font-size: 11px; font-weight: 900; letter-spacing: .13em; }
.route-copy h3 { margin: 11px 0 14px; color: var(--ink); font-size: clamp(23px, 2.3vw, 31px); line-height: 1.2; }
.route-copy p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.route-card-wide { grid-column: 1 / -1; grid-template-columns: minmax(190px, .45fr) 1fr; }
.route-card-wide .route-image { max-width: 270px; }
.info-pill { width: fit-content; margin-top: 22px; padding: 9px 13px; border-radius: 99px; color: var(--ocean); background: var(--aqua-soft); font-size: 12px; font-weight: 900; }

.section-features { color: white; background: radial-gradient(circle at 10% 10%, rgba(57,214,212,.18), transparent 24%), linear-gradient(155deg, var(--ocean-deep), var(--ocean-dark)); }
.section-features::before { content: ""; position: absolute; inset: 0; opacity: .25; background-image: radial-gradient(circle, rgba(255,255,255,.23) 1px, transparent 1px); background-size: 29px 29px; mask-image: linear-gradient(black, transparent 75%); }
.section-heading-light h2 { color: white; }
.section-heading-light > p:last-child { color: rgba(226,248,249,.65); }
.feature { position: relative; border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius-lg); background: rgba(255,255,255,.07); box-shadow: 0 30px 80px rgba(0, 15, 24, .17); backdrop-filter: blur(12px); }
.feature-bay { min-height: 690px; padding: clamp(30px, 5vw, 70px); display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: clamp(30px, 6vw, 80px); overflow: hidden; }
.feature-bay::before { content: ""; position: absolute; right: -80px; bottom: -140px; width: 530px; height: 530px; border-radius: 50%; background: rgba(45, 213, 210, .1); }
.feature-copy { position: relative; z-index: 2; }
.feature-number { color: rgba(255,255,255,.18); font-size: 56px; font-weight: 900; line-height: 1; }
.feature-label { margin: 22px 0 10px; color: var(--sun); font-size: 12px; font-weight: 900; letter-spacing: .18em; }
.feature h3 { margin: 0; color: white; font-size: clamp(30px, 4vw, 50px); line-height: 1.12; letter-spacing: -.04em; }
.feature-copy > p:not(.feature-label) { margin: 24px 0 0; color: rgba(230,249,249,.64); font-size: 15px; line-height: 1.85; }
.feature-rates { margin-top: 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.feature-rates span { padding: 16px; border-radius: 18px; color: rgba(255,255,255,.62); background: rgba(255,255,255,.07); font-size: 12px; }
.feature-rates b { display: block; margin-top: 3px; color: var(--sun); font-size: 27px; }
.screen-stack { position: relative; min-height: 570px; display: grid; place-items: center; }
.screen-stack .phone-frame { position: absolute; width: min(275px, 47%); height: 560px; }
.screen-stack .phone-frame:first-child { left: 15%; transform: rotate(-6deg); }
.screen-stack .phone-frame:last-child { right: 12%; top: 32px; transform: rotate(7deg); }
.feature-pair { margin-top: 26px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
.feature-small { min-height: 680px; padding: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: 1fr minmax(150px, .62fr); align-items: center; gap: 28px; overflow: hidden; }
.feature-small h3 { font-size: clamp(28px, 3.4vw, 42px); }
.feature-phone { width: 100%; height: 480px; border-width: 5px; border-radius: 28px; }
.chip-list, .check-list { margin: 28px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.chip-list li { padding: 8px 11px; border-radius: 99px; color: #c8f7f1; background: rgba(57,214,212,.11); font-size: 11px; font-weight: 800; }
.check-list { display: grid; }
.check-list li { position: relative; padding-left: 24px; color: rgba(255,255,255,.68); font-size: 12px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--sun); font-weight: 900; }
.turtle-screens { position: relative; height: 510px; }
.turtle-screens .feature-phone { position: absolute; width: 75%; }
.turtle-screens .feature-phone:first-child { left: 0; top: 0; transform: rotate(-4deg); }
.turtle-screens .feature-phone:last-child { right: -14%; top: 35px; transform: rotate(6deg); }

.section-benefits { background: #eff9f5; }
.section-benefits::after { content: ""; position: absolute; left: -110px; bottom: -150px; width: 380px; height: 380px; border: 60px solid rgba(255,203,98,.14); border-radius: 50%; }
.benefits-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(55px, 8vw, 120px); align-items: center; }
.benefits-visual { position: relative; min-height: 710px; display: grid; place-items: center; }
.sun-disc { position: absolute; width: 520px; max-width: 95%; aspect-ratio: 1; border-radius: 50%; background: var(--sun); box-shadow: inset 0 0 0 55px rgba(255,255,255,.17), 0 30px 80px rgba(208, 148, 29, .2); }
.benefits-phone { z-index: 2; width: min(330px, 70vw); height: 650px; transform: rotate(-4deg); }
.data-float { position: absolute; z-index: 3; right: -10px; bottom: 80px; min-width: 190px; padding: 20px; border-radius: 22px; color: white; background: var(--ocean-deep); box-shadow: var(--shadow); }
.data-float span, .data-float small, .data-float strong { display: block; }
.data-float span { color: rgba(255,255,255,.55); font-size: 11px; }
.data-float strong { margin: 7px 0; color: var(--sun); font-size: 24px; }
.data-float small { color: rgba(255,255,255,.7); }
.benefits-copy .section-intro { margin-bottom: 36px; }
.benefit-list { display: grid; gap: 12px; }
.benefit-list article { padding: 20px 0; display: grid; grid-template-columns: 42px 1fr; gap: 18px; border-top: 1px solid var(--line); }
.benefit-list article > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: var(--ocean); background: var(--aqua-soft); font-size: 11px; font-weight: 900; }
.benefit-list h3 { margin: 0 0 7px; font-size: 18px; }
.benefit-list p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }
.rebate-row { margin-top: 26px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.rebate-row div { padding: 13px 4px; text-align: center; border-radius: 15px; background: white; box-shadow: 0 9px 20px rgba(7, 78, 94, .06); }
.rebate-row b, .rebate-row span { display: block; }
.rebate-row b { color: var(--coral); font-size: 18px; }
.rebate-row span { margin-top: 3px; color: var(--ink-soft); font-size: 10px; }

.section-vault { color: white; background: linear-gradient(145deg, #0b5970, #06384e); }
.section-vault::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 84% 25%, rgba(255,203,98,.16), transparent 26%), linear-gradient(120deg, transparent 49.8%, rgba(255,255,255,.04) 50%, transparent 50.2%); background-size: auto, 70px 70px; }
.vault-grid { position: relative; display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: clamp(50px, 8vw, 110px); }
.vault-copy h2 { color: white; }
.vault-copy > p:not(.section-kicker) { margin: 27px 0 0; max-width: 630px; color: rgba(231,248,248,.68); font-size: 17px; line-height: 1.85; }
.cycle-list { margin: 34px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; list-style: none; }
.cycle-list li { min-height: 76px; padding: 14px; display: flex; align-items: center; gap: 12px; border: 1px solid rgba(255,255,255,.09); border-radius: 17px; color: rgba(255,255,255,.72); background: rgba(255,255,255,.06); font-size: 12px; line-height: 1.55; }
.cycle-list span { flex: 0 0 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; color: var(--ocean-deep); background: var(--sun); font-weight: 900; }
.vault-visual { position: relative; min-height: 690px; display: grid; place-items: center; }
.vault-phone { z-index: 2; width: min(330px, 72vw); height: 650px; }
.vault-ring { position: absolute; width: 540px; aspect-ratio: 1; border: 1px solid rgba(255,203,98,.35); border-radius: 50%; animation: pulse-ring 4s ease-in-out infinite; }
.trust-grid { position: relative; margin-top: 90px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.trust-grid article { padding: 27px; border: 1px solid rgba(255,255,255,.11); border-radius: 24px; background: rgba(255,255,255,.06); }
.trust-grid span { color: var(--aqua); font-size: 11px; font-weight: 900; }
.trust-grid h3 { margin: 15px 0 10px; color: white; font-size: 18px; }
.trust-grid p { margin: 0; color: rgba(255,255,255,.55); font-size: 12px; line-height: 1.7; }

.section-ecosystem { background: var(--paper); }
.roadmap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.roadmap-card { position: relative; min-height: 330px; padding: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background: white; transition: transform .35s ease, color .35s ease, background .35s ease; }
.roadmap-card::after { content: ""; position: absolute; right: -45px; bottom: -55px; width: 150px; height: 150px; border: 34px solid rgba(57,214,212,.11); border-radius: 50%; transition: transform .5s ease; }
.roadmap-card:hover { color: white; background: var(--ocean); transform: translateY(-8px); }
.roadmap-card:hover::after { transform: scale(1.35); }
.roadmap-card > span { color: var(--coral); font-size: 11px; font-weight: 900; }
.roadmap-icon { margin: 50px 0 24px; color: var(--aqua); font-size: 38px; }
.roadmap-card h3 { margin: 0 0 14px; font-size: 23px; }
.roadmap-card p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; transition: color .35s ease; }
.roadmap-card:hover p { color: rgba(255,255,255,.68); }

.closing { position: relative; min-height: 720px; padding: 150px 0 70px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; text-align: center; color: white; background: linear-gradient(rgba(2,35,50,.72), rgba(2,24,36,.95)), url("../images/hero/ocean-hero.png") center 45%/cover; }
.closing::before { content: ""; position: absolute; left: 50%; top: 50%; width: 680px; height: 680px; border: 1px solid rgba(255,255,255,.1); border-radius: 50%; box-shadow: 0 0 0 100px rgba(255,255,255,.025), 0 0 0 200px rgba(255,255,255,.018); transform: translate(-50%, -50%); }
.closing-content { position: relative; z-index: 2; }
.closing .eyebrow { margin-inline: auto; }
.closing h2 { margin: 0; color: white; font-size: clamp(50px, 7vw, 94px); line-height: 1; letter-spacing: -.06em; }
.closing-content > p:not(.eyebrow) { margin: 30px 0; color: rgba(255,255,255,.68); font-size: clamp(15px, 1.6vw, 19px); letter-spacing: .08em; }
.closing .button-primary { margin-top: 16px; }
.closing .button:hover span { transform: translateY(-4px); }
.disclaimer { position: relative; z-index: 2; width: min(820px, calc(100% - 40px)); margin: 80px auto 0; color: rgba(255,255,255,.42); font-size: 11px; line-height: 1.8; }

.download-dialog[hidden], .toast[hidden], .wechat-guide[hidden], .download-options[hidden] { display: none; }
.download-dialog { position: fixed; z-index: 500; inset: 0; display: grid; place-items: center; padding: 20px; }
.download-backdrop { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: rgba(1, 20, 30, .78); cursor: default; backdrop-filter: blur(10px); animation: dialog-fade .25s ease both; }
.download-panel { position: relative; z-index: 1; width: min(510px, 100%); max-height: min(760px, calc(100vh - 40px)); overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; padding: clamp(28px, 6vw, 48px); border: 1px solid rgba(57, 214, 212, .2); border-radius: 34px; color: var(--ink); background: linear-gradient(145deg, #fffdf5, #eefaf7); box-shadow: 0 40px 100px rgba(0, 18, 28, .4); animation: dialog-rise .35s cubic-bezier(.2,.75,.2,1) both; outline: none; }
.download-panel::before { content: ""; position: absolute; right: -70px; top: -85px; width: 210px; height: 210px; border: 42px solid rgba(57,214,212,.1); border-radius: 50%; pointer-events: none; }
.download-close { position: absolute; z-index: 2; right: 17px; top: 17px; width: 38px; height: 38px; display: grid; place-items: center; border: 0; border-radius: 50%; color: var(--ink-soft); background: rgba(8, 47, 62, .07); cursor: pointer; font-size: 25px; line-height: 1; transition: color .2s ease, background .2s ease, transform .2s ease; }
.download-close:hover { color: var(--ink); background: rgba(8, 47, 62, .13); transform: rotate(8deg); }
.download-kicker { margin: 0 0 13px; color: var(--coral); font-size: 10px; font-weight: 900; letter-spacing: .22em; }
.download-panel h2 { margin: 0; font-size: clamp(32px, 7vw, 44px); line-height: 1.1; letter-spacing: -.05em; }
.download-intro { margin: 18px 0 28px; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.download-options { display: grid; gap: 12px; }
.platform-download { width: 100%; padding: 18px; display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 15px; border: 1px solid var(--line); border-radius: 20px; color: var(--ink); background: rgba(255,255,255,.82); cursor: pointer; text-align: left; transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease; }
.platform-download:hover, .platform-download:focus-visible { border-color: rgba(6,107,137,.34); box-shadow: 0 16px 34px rgba(3,47,62,.11); transform: translateY(-3px); outline: none; }
.platform-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; color: white; background: var(--ocean-deep); font-family: system-ui, sans-serif; font-size: 24px; font-weight: 800; }
.platform-icon-ios { font-size: 13px; letter-spacing: -.03em; }
.platform-icon-android { color: var(--ocean-deep); background: var(--aqua); font-size: 20px; }
.platform-download strong, .platform-download small { display: block; }
.platform-download strong { font-size: 16px; }
.platform-download small { margin-top: 4px; color: var(--ink-soft); font-size: 12px; }
.platform-download > b { color: var(--coral); font-size: 22px; transition: transform .2s ease; }
.platform-download:hover > b { transform: translateX(4px); }
.wechat-guide { position: relative; padding: 30px 24px 24px; border: 1px solid rgba(255, 190, 62, .42); border-radius: 22px; text-align: center; background: #fff7dc; }
.wechat-guide strong { display: block; font-size: 20px; }
.wechat-guide p { margin: 12px 0 0; color: #745d2f; font-size: 13px; line-height: 1.75; }
.wechat-arrow { position: absolute; right: 14px; top: 7px; color: var(--coral); font-size: 36px; animation: wechat-point 1.3s ease-in-out infinite; }
.download-status { min-height: 18px; margin: 18px 0 0; color: var(--coral); font-size: 12px; text-align: center; }
.toast { position: fixed; z-index: 600; left: 50%; bottom: max(28px, env(safe-area-inset-bottom)); max-width: calc(100% - 32px); padding: 13px 20px; border: 1px solid rgba(255,255,255,.15); border-radius: 99px; color: white; background: rgba(3,43,61,.94); box-shadow: 0 16px 42px rgba(0,20,32,.28); font-size: 13px; font-weight: 800; text-align: center; transform: translateX(-50%); animation: toast-in .3s ease both; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.route-card:nth-child(2n), .feature-pair > :nth-child(2), .roadmap-card:nth-child(2) { transition-delay: .08s; }
.roadmap-card:nth-child(3) { transition-delay: .16s; }
.roadmap-card:nth-child(4) { transition-delay: .24s; }

@keyframes phone-float { 0%,100% { transform: rotate(4deg) translateY(0); } 50% { transform: rotate(2.5deg) translateY(-16px); } }
@keyframes card-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes glow-drift { 0%,100% { transform: translate3d(0,0,0) scale(1); } 50% { transform: translate3d(35px,-25px,0) scale(1.12); } }
@keyframes scroll-dot { 0% { opacity: 0; transform: translateY(0); } 35% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }
@keyframes pulse-ring { 0%,100% { opacity: .35; transform: scale(.94); } 50% { opacity: .75; transform: scale(1.03); } }
@keyframes dialog-fade { from { opacity: 0; } }
@keyframes dialog-rise { from { opacity: 0; transform: translateY(24px) scale(.97); } }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 14px); } }
@keyframes wechat-point { 0%,100% { transform: translate(0,0); } 50% { transform: translate(5px,-5px); } }

@media (max-width: 1020px) {
  .site-nav { display: none; }
  .header-cta { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr .76fr; gap: 25px; }
  .hero-visual { min-height: 590px; }
  .hero-phone { height: 580px; }
  .route-grid { grid-template-columns: 1fr; }
  .route-card-wide { grid-template-columns: minmax(150px, .7fr) minmax(0, 1fr); }
  .route-card-wide .route-image { max-width: none; }
  .feature-pair { grid-template-columns: 1fr; }
  .feature-small { min-height: 600px; }
  .benefits-grid { gap: 45px; }
  .data-float { right: -5px; }
  .roadmap-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root { --container: min(calc(100% - 28px), 620px); }
  html { scroll-padding-top: 70px; }
  .site-header { top: 8px; width: calc(100% - 20px); height: 58px; padding-left: 11px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand strong { font-size: 14px; }
  .brand small { display: none; }
  .header-cta { padding: 10px 15px; font-size: 12px; }
  .download-dialog { padding: 12px; }
  .download-panel { width: 100%; max-width: 100%; max-height: calc(100vh - 24px); max-height: calc(100dvh - 24px); border-radius: 27px; }
  .hero { min-height: auto; }
  .hero-grid { min-height: auto; padding-top: 118px; padding-bottom: 150px; grid-template-columns: 1fr; text-align: center; }
  .eyebrow { justify-content: center; }
  .hero h1 { margin-inline: auto; font-size: clamp(52px, 14vw, 76px); }
  .hero-lead { margin-inline: auto; font-size: 15px; line-height: 1.8; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-stats div { min-width: 98px; padding: 0 14px; }
  .hero-stats dt { font-size: 20px; }
  .hero-visual { min-height: 590px; margin-top: 20px; }
  .hero-phone { width: min(300px, 70vw); height: 580px; }
  .orbit-one { width: 420px; }
  .orbit-two { width: 530px; }
  .floating-card { min-width: 145px; text-align: left; }
  .floating-card-top { right: 0; }
  .floating-card-bottom { left: 0; }
  .scroll-cue { bottom: 52px; }
  .section { padding: 86px 0; }
  .section-heading { text-align: center; margin-inline: auto; }
  .section-heading h2, .benefits-copy h2, .vault-copy h2 { font-size: clamp(37px, 11vw, 54px); }
  .route-card, .route-card-wide { min-height: 0; grid-template-columns: minmax(120px, .66fr) 1fr; gap: 18px; }
  .route-image { height: 330px; }
  .feature-bay { padding: 40px 22px 28px; grid-template-columns: 1fr; text-align: center; }
  .feature-copy > p:not(.feature-label) { margin-inline: auto; }
  .feature-rates { max-width: 400px; margin-inline: auto; }
  .screen-stack { min-height: 520px; }
  .screen-stack .phone-frame { height: 500px; }
  .feature-small { padding: 35px 22px; grid-template-columns: 1fr; text-align: center; }
  .chip-list { justify-content: center; }
  .check-list { width: fit-content; margin-inline: auto; text-align: left; }
  .feature-phone { width: min(280px, 78vw); height: 520px; margin-inline: auto; }
  .turtle-screens { width: min(390px, 100%); height: 540px; margin-inline: auto; }
  .turtle-screens .feature-phone { width: 62%; }
  .turtle-screens .feature-phone:last-child { right: 3%; }
  .benefits-grid, .vault-grid { grid-template-columns: 1fr; }
  .benefits-visual { order: 2; min-height: 650px; }
  .benefits-copy, .vault-copy { text-align: center; }
  .benefit-list { text-align: left; }
  .section-intro, .vault-copy > p:not(.section-kicker) { margin-inline: auto; }
  .vault-visual { min-height: 630px; }
  .vault-phone { height: 600px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .roadmap-grid { grid-template-columns: 1fr 1fr; }
  .roadmap-card { min-height: 290px; }
  .closing { min-height: 650px; padding-top: 120px; }
}

@media (max-width: 520px) {
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; }
  .hero-stats div { min-width: 0; padding: 0 8px; }
  .floating-card { padding: 12px 14px; min-width: 130px; }
  .floating-card-top { right: -5px; top: 80px; }
  .floating-card-bottom { left: -4px; bottom: 72px; }
  .route-card, .route-card-wide { padding: 16px; grid-template-columns: 112px 1fr; border-radius: 24px; }
  .route-image { height: 255px; border-radius: 19px; }
  .step { width: 38px; height: 38px; font-size: 11px; }
  .route-copy h3 { font-size: 21px; }
  .route-copy p { font-size: 12px; line-height: 1.7; }
  .route-copy small { font-size: 9px; }
  .screen-stack { min-height: 430px; }
  .screen-stack .phone-frame { height: 420px; border-width: 4px; border-radius: 25px; }
  .screen-stack .phone-frame:first-child { left: 8%; }
  .screen-stack .phone-frame:last-child { right: 8%; }
  .feature-rates span { padding: 13px 8px; }
  .benefits-visual { min-height: 580px; }
  .benefits-phone { height: 550px; }
  .sun-disc { width: 390px; }
  .data-float { right: 0; bottom: 28px; min-width: 160px; }
  .cycle-list { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-grid article { padding: 23px; }
  .roadmap-grid { grid-template-columns: 1fr; }
  .roadmap-card { min-height: 250px; }
  .roadmap-icon { margin-top: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}