:root {
  --navy: #071f4a;
  --navy-soft: #18345d;
  --green: #00765d;
  --green-dark: #005c49;
  --mint: #e7f5f0;
  --mint-2: #f4faf7;
  --red: #d43f47;
  --gold: #d3a23a;
  --line: #c8d8df;
  --paper: #fffefa;
  --shadow: 0 14px 34px rgba(7, 31, 74, .1);
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; color: var(--navy); background: var(--paper); font-family: var(--sans); line-height: 1.7; overflow-x: hidden; }
body, button, a { font-family: var(--sans); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin-top: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #f0b431; outline-offset: 3px; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; background: var(--navy); color: white; border-radius: 8px; transition: top .2s; }
.skip-link:focus { top: 12px; }
.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(7,31,74,.12); backdrop-filter: blur(14px); }
.nav-wrap { height: 72px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.25rem; white-space: nowrap; }
.brand-mark { color: var(--navy); font-size: 2rem; line-height: 1; }
.primary-nav { margin-left: auto; display: flex; align-items: center; gap: 30px; font-size: .94rem; font-weight: 650; }
.primary-nav a { position: relative; padding-block: 22px; }
.primary-nav a::after { content: ""; position: absolute; left: 50%; bottom: 13px; width: 0; height: 2px; background: var(--green); transform: translateX(-50%); transition: width .2s; }
.primary-nav a:hover::after, .primary-nav a.active::after { width: 22px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 26px; color: white; background: linear-gradient(135deg, #00856a, #00664f); border: 1px solid transparent; border-radius: 7px; box-shadow: 0 8px 18px rgba(0,118,93,.18); font-size: 1rem; font-weight: 750; line-height: 1.2; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,118,93,.24); }
.button-small { min-height: 40px; padding: 8px 18px; font-size: .88rem; }
.button-outline { color: var(--navy); background: rgba(255,255,255,.7); border-color: #28486d; box-shadow: none; }
.button-outline:hover { background: white; box-shadow: 0 8px 20px rgba(7,31,74,.1); }
.button-wide { width: 100%; margin-top: 12px; }
.current-page { cursor: default; box-shadow: none; }
.current-page:hover { transform: none; box-shadow: none; }
.menu-toggle { display: none; margin-left: auto; width: 42px; height: 42px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 21px; height: 2px; background: var(--navy); transition: .2s; }

.section { padding: 74px 0; }
.compact-section { padding-top: 38px; }
.section-tint { background: linear-gradient(180deg, #fbfdfc, #f5f9f7); }
.section-inkwash { position: relative; overflow: hidden; background: radial-gradient(circle at 72% 26%, rgba(177,215,200,.44), transparent 24%), linear-gradient(135deg, #fffefa 0%, #fbfcf8 55%, #f2f8f4 100%); }
.section-inkwash::before, .section-inkwash::after { content: ""; position: absolute; pointer-events: none; opacity: .35; filter: blur(.2px); }
.section-inkwash::before { width: 45vw; height: 140px; left: -40px; bottom: -40px; background: linear-gradient(155deg, transparent 20%, #bdd3d1 21%, transparent 22%), linear-gradient(25deg, transparent 36%, #93b8b3 37%, transparent 38%); transform: skewX(-12deg); }
.section-inkwash::after { width: 280px; height: 190px; right: -60px; top: 0; background: repeating-linear-gradient(112deg, transparent 0 18px, rgba(67,121,103,.22) 19px 22px, transparent 23px 32px); clip-path: polygon(35% 0,100% 0,100% 100%,72% 55%); }
.section-heading { position: relative; display: flex; align-items: center; gap: 18px; margin-bottom: 20px; }
.section-heading h2 { margin: 0; color: var(--navy); font-family: var(--serif); font-size: clamp(1.65rem, 3vw, 2.25rem); line-height: 1.2; font-weight: 800; }
.section-heading.centered { justify-content: center; text-align: center; }
.section-heading.centered span { width: min(20%, 180px); height: 1px; background: linear-gradient(90deg, transparent, #8aa5b9); }
.section-heading.centered span:last-child { background: linear-gradient(90deg, #8aa5b9, transparent); }
.section-heading.left h2 { padding-right: 22px; }
.section-heading.left h2::after { content: ""; display: block; width: 56px; height: 3px; margin-top: 12px; background: var(--green); }
.section-intro { max-width: 760px; margin: 0 auto 34px; text-align: center; color: #51657e; font-size: 1rem; }
.section-action { display: flex; justify-content: center; margin-top: 28px; }
.callout { margin: 28px auto 0; max-width: 840px; padding: 13px 18px; color: #30526a; background: rgba(225,242,235,.72); border-left: 4px solid var(--green); border-radius: 5px; text-align: center; }

.hero { min-height: 620px; display: flex; align-items: center; }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(420px, .97fr); align-items: center; gap: 45px; padding-block: 54px 48px; }
.eyebrow { margin: 0 0 10px; color: var(--green); font-weight: 800; letter-spacing: .04em; }
.hero h1 { margin: 0 0 18px; font-family: var(--serif); font-size: clamp(3rem, 5vw, 4.75rem); line-height: 1.12; letter-spacing: -.04em; }
.hero-lede { margin-bottom: 22px; color: #52657e; font-size: 1.08rem; line-height: 1.85; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.version-note { margin: 12px 0 12px; color: #5b6e80; font-size: .84rem; }
.tag-row { display: flex; gap: 9px; flex-wrap: wrap; }
.tag-row span { padding: 5px 12px; color: var(--green-dark); background: #e7f4ef; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.hero-art { position: relative; height: 505px; }
.glow { position: absolute; inset: 50px 35px 30px 35px; background: radial-gradient(circle at center, rgba(158,203,187,.8), rgba(230,242,236,.3) 60%, transparent 70%); border-radius: 50%; }
.crop { position: relative; overflow: hidden; }
.crop img { position: absolute; max-width: none; pointer-events: none; user-select: none; }
.crop-home-hero { position: absolute; z-index: 2; left: 18px; top: 80px; width: 370px; height: 320px; filter: drop-shadow(0 22px 18px rgba(7,31,74,.18)); }
.crop-home-hero img { width: 1395px; left: -689px; top: -45px; }
.floating-cards { position: absolute; z-index: 3; right: 8px; top: 92px; width: 190px; height: 260px; }
.floating-cards i, .cta-cards span { position: absolute; display: flex; align-items: flex-start; justify-content: center; padding-top: 20px; width: 116px; height: 170px; color: #111; background: white; border: 1px solid #d5dde2; border-radius: 9px; box-shadow: 0 12px 22px rgba(7,31,74,.14); font-family: var(--serif); font-size: 1.75rem; font-style: normal; font-weight: 800; }
.floating-cards i:nth-child(1) { left: 0; top: 12px; transform: rotate(-15deg); }
.floating-cards i:nth-child(2) { left: 38px; top: 35px; color: var(--red); transform: rotate(4deg); }
.floating-cards i:nth-child(3) { left: 73px; top: 65px; transform: rotate(15deg); }
.art-note { position: absolute; z-index: 4; margin: 0; color: #47617e; font-family: var(--serif); font-size: .94rem; line-height: 1.35; transform: rotate(-4deg); }
.art-note-top { right: 0; top: 42px; }
.art-note-bottom { right: 3px; bottom: 62px; }

.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-item { display: flex; gap: 14px; padding: 20px 16px; border-right: 1px solid #dbe4e7; }
.feature-item:last-child { border-right: 0; }
.feature-item h3 { margin: 0 0 4px; font-size: 1rem; }
.feature-item p { margin: 0; color: #617083; font-size: .84rem; line-height: 1.6; }
.icon-disc { flex: 0 0 47px; width: 47px; height: 47px; display: grid; place-items: center; color: var(--green); background: var(--mint); border-radius: 50%; font-size: 1.45rem; font-weight: 800; }
.round-flow { margin-top: 22px; padding: 20px 24px; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 14px; background: linear-gradient(90deg, #eff7f3, #f9fbf8, #eff7f3); border: 1px solid #e2ece7; border-radius: 10px; }
.round-flow > div { display: grid; justify-items: center; text-align: center; }
.round-flow > i { color: #87b7aa; font-size: 2.2rem; font-style: normal; }
.round-flow b { font-size: .94rem; }
.round-flow small { color: #718094; }
.mini-card { min-height: 50px; display: flex; align-items: center; justify-content: center; color: #1c2f44; font-family: var(--serif); font-weight: 800; }
.mini-card.backs { font-size: 2.8rem; color: #173c70; }
.mini-card.actions { padding: 0 10px; color: white; background: linear-gradient(90deg, #3185e4, #18a874, #e5484d); border-radius: 6px; font-family: var(--sans); font-size: .77rem; }

.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mode-grid article { overflow: hidden; padding-bottom: 17px; background: white; border: 1px solid #e4e9eb; border-radius: 8px; box-shadow: 0 8px 22px rgba(7,31,74,.05); text-align: center; }
.mode-grid h3 { margin: 14px 14px 5px; font-family: var(--serif); font-size: 1.15rem; }
.mode-grid p { margin: 0 17px; color: #657489; font-size: .86rem; line-height: 1.65; }
.mode-art { height: 130px; display: grid; place-items: center; color: white; background: linear-gradient(135deg, #244a75, #76a09d); font-family: var(--serif); font-size: 2rem; font-weight: 800; letter-spacing: .05em; }
.mode-art.cards-back { background: linear-gradient(rgba(18,52,87,.14), rgba(18,52,87,.14)), repeating-linear-gradient(45deg, #173f70 0 7px, #275986 8px 11px); }
.mode-art.robot { background: linear-gradient(135deg, #6995a5, #132f55); }
.mode-art.people { background: linear-gradient(135deg, #1b4864, #8da9b0); }
.mode-art.friends { background: linear-gradient(135deg, #814f3f, #e7a87e); }
.mode-art.joker { color: #c62828; background: linear-gradient(135deg, #e6f2df, #90b99d); }
.mode-art.trophy { color: #ffd96c; background: linear-gradient(135deg, #10375d, #23739c); }

.number-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; counter-reset: steps; }
.number-flow article { position: relative; padding: 24px 18px; background: white; border: 1px solid #dfe8e6; border-radius: 8px; box-shadow: 0 8px 20px rgba(7,31,74,.05); }
.number-flow article::after { content: "›"; position: absolute; z-index: 2; right: -17px; top: 38px; color: #88b2aa; font-size: 2rem; }
.number-flow article:last-child::after { display: none; }
.number-flow article > span { width: 40px; height: 40px; display: grid; place-items: center; color: var(--green); background: var(--mint); border-radius: 50%; font-size: 1.25rem; font-weight: 800; }
.number-flow h3 { margin: 14px 0 7px; font-size: 1rem; }
.number-flow p { margin: 0; color: #627388; font-size: .85rem; }

.action-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.action-grid article { padding: 22px 16px; background: white; border: 1px solid #e2e9e7; border-radius: 10px; text-align: center; }
.action-grid article > span { width: 58px; height: 58px; display: grid; place-items: center; margin: 0 auto 12px; color: var(--green); background: var(--mint); border-radius: 50%; font-family: var(--serif); font-size: 1.35rem; font-weight: 800; }
.action-grid h3 { margin-bottom: 5px; font-family: var(--serif); }
.action-grid p { margin: 0; color: #68788a; font-size: .82rem; }

.rules-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rules-grid article { position: relative; min-height: 205px; display: grid; grid-template-columns: auto 1fr; gap: 12px; padding: 18px 18px 82px; background: #fff; border: 1px solid #e0e6e8; border-radius: 8px; box-shadow: 0 8px 20px rgba(7,31,74,.05); }
.rules-grid article > b { color: var(--green); font-size: 1rem; }
.rules-grid h3 { margin: 0 0 4px; font-family: var(--serif); font-size: 1.1rem; }
.rules-grid p { margin: 0; color: #6b7888; font-size: .82rem; }
.poker { position: absolute; bottom: 12px; width: 54px; height: 70px; display: flex; align-items: flex-start; justify-content: center; padding-top: 8px; color: #111; background: white; border: 1px solid #d9dddf; border-radius: 5px; box-shadow: 0 4px 8px rgba(7,31,74,.08); font-family: var(--serif); font-weight: 800; }
.poker:nth-last-child(3) { left: calc(50% - 65px); transform: rotate(-3deg); }
.poker:nth-last-child(2) { left: calc(50% - 25px); z-index: 2; }
.poker:nth-last-child(1) { left: calc(50% + 15px); transform: rotate(3deg); }
.poker.red { color: #d32f3b; }

.split-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 54px; }
.guide-list { margin: 0; padding: 0; list-style: none; counter-reset: guide; }
.guide-list li { counter-increment: guide; position: relative; min-height: 42px; padding: 8px 0 8px 48px; border-bottom: 1px dashed #d8e2e4; }
.guide-list li::before { content: counter(guide); position: absolute; left: 0; top: 6px; width: 32px; height: 32px; display: grid; place-items: center; color: var(--green); background: var(--mint); border-radius: 50%; font-weight: 800; }
.guide-visual { position: relative; min-height: 530px; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 4px; }
.crop-guide { position: absolute; top: 0; left: 50%; width: 300px; height: 420px; transform: translateX(-50%); filter: drop-shadow(0 18px 16px rgba(7,31,74,.17)); }
.crop-guide img { width: 1395px; left: -699px; top: -70px; }
.path-cards { position: absolute; z-index: 3; left: 0; right: 0; bottom: 72px; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 8px; align-items: center; }
.path-cards > div { padding: 12px 8px; background: rgba(255,255,255,.95); border: 1px solid #dfe9e5; border-radius: 7px; text-align: center; box-shadow: 0 7px 18px rgba(7,31,74,.07); }
.path-cards b, .path-cards span { display: block; }
.path-cards b { font-size: .85rem; }
.path-cards span { color: #6d7b8c; font-size: .72rem; }
.path-cards i { color: #7aaa9e; font-size: 1.7rem; font-style: normal; }
.guide-visual .button { position: relative; z-index: 4; }
.visual-panel { position: relative; min-height: 480px; }
.crop-table { position: absolute; left: 50%; top: 0; width: 340px; height: 410px; transform: translateX(-50%); filter: drop-shadow(0 18px 16px rgba(7,31,74,.12)); }
.crop-table img { width: 1157px; left: -137px; top: -102px; }
.icon-list { margin: 0; padding: 0; list-style: none; }
.icon-list li { position: relative; padding: 13px 0 13px 54px; border-bottom: 1px solid #e4e9e8; color: #52667b; }
.icon-list li span { position: absolute; left: 0; top: 10px; width: 38px; height: 38px; display: grid; place-items: center; color: var(--green); background: var(--mint); border-radius: 50%; font-weight: 800; }

.rewards-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.rewards-grid article { padding: 20px 16px; background: #fff; border: 1px solid #e0e9e5; border-radius: 8px; text-align: center; }
.rewards-grid article > span { width: 42px; height: 42px; display: grid; place-items: center; margin: 0 auto 10px; color: var(--green); background: var(--mint); border-radius: 50%; font-weight: 800; }
.rewards-grid h3 { margin-bottom: 4px; font-size: 1rem; }
.rewards-grid p { margin: 0; color: #66768a; font-size: .81rem; }
.task-board { max-width: 570px; margin: 25px auto 0; padding: 22px; background: linear-gradient(135deg, #e9f5f0, #fff); border: 1px solid #d8e7e0; border-radius: 10px; box-shadow: var(--shadow); }
.task-board > div { display: grid; grid-template-columns: 1fr 160px; align-items: center; gap: 14px; margin-bottom: 14px; font-size: .83rem; }
.task-board > div:last-child { margin-bottom: 0; }
.task-board b { grid-column: 1 / -1; margin-bottom: -6px; font-size: 1rem; }
.task-board i { height: 7px; overflow: hidden; background: #dfe8e5; border-radius: 999px; }
.task-board i::before { content: ""; display: block; width: var(--progress); height: 100%; background: var(--green); border-radius: inherit; }

.tips-section { background: white; }
details { border: 1px solid #dbe4e8; border-radius: 6px; background: white; }
details + details { margin-top: 10px; }
summary { position: relative; padding: 14px 42px 14px 16px; font-weight: 700; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 16px; top: 50%; color: var(--green); font-size: 1.25rem; transform: translateY(-50%); }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 16px 15px; color: #627286; font-size: .88rem; }
.current-version { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; padding: 16px; background: var(--mint-2); border-left: 4px solid var(--green); }
.current-version span { font-family: var(--serif); font-size: 1.6rem; font-weight: 800; }
.current-version b { font-size: .9rem; }
.timeline { margin-left: 8px; border-left: 2px solid #d5e7df; }
.timeline > div { position: relative; padding: 0 0 18px 22px; }
.timeline > div::before { content: ""; position: absolute; left: -6px; top: 7px; width: 10px; height: 10px; background: var(--green); border: 3px solid white; border-radius: 50%; box-shadow: 0 0 0 1px var(--green); }
.timeline time { color: #30516e; font-weight: 800; font-size: .86rem; }
.timeline p { margin: 3px 0 0; color: #68788a; font-size: .83rem; }
.history-note { padding: 13px 15px; color: #52677c; background: #f4f7f6; border-radius: 6px; font-size: .86rem; }
.faq-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; align-items: start; }
.faq-columns details { margin-top: 0; }

.final-cta { padding: 42px 0; }
.final-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 200px 1fr 280px; align-items: center; gap: 36px; }
.final-grid h2 { margin: 0 0 6px; font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.35rem); }
.final-grid p { margin: 0; color: #607084; }
.cta-cards { position: relative; height: 140px; }
.cta-cards span { width: 80px; height: 116px; padding-top: 12px; font-size: 1.2rem; }
.cta-cards span:nth-child(1) { left: 18px; top: 8px; transform: rotate(-18deg); }
.cta-cards span:nth-child(2) { left: 59px; top: 16px; color: var(--red); transform: rotate(-3deg); }
.cta-cards span:nth-child(3) { left: 99px; top: 28px; transform: rotate(14deg); }
.final-actions { display: flex; flex-direction: column; gap: 10px; align-items: stretch; text-align: center; }
.final-actions > a:not(.button) { min-height: 42px; display: grid; place-items: center; border: 1px solid #294b72; border-radius: 6px; font-weight: 700; }
.final-actions small { color: #617486; }

.site-footer { padding: 36px 0 98px; background: white; border-top: 1px solid #e0e6e7; }
.footer-grid { display: grid; grid-template-columns: 1.45fr 1fr .65fr .8fr 1.2fr; gap: 34px; }
.footer-grid h2 { margin: 3px 0 12px; font-family: var(--sans); font-size: .84rem; }
.footer-grid p, .footer-grid a:not(.brand):not(.button) { margin: 5px 0; color: #617184; font-size: .77rem; }
.footer-grid nav { display: grid; grid-template-columns: 1fr 1fr; gap: 3px 16px; }
.footer-grid .brand { margin-bottom: 8px; font-size: 1.05rem; }
.footer-grid .brand-mark { font-size: 1.55rem; }
.domain-text { overflow-wrap: anywhere; color: var(--green) !important; font-weight: 800; }
.mobile-download { display: none; }

/* Download */
.download-hero { padding: 18px 0 52px; }
.breadcrumb { position: relative; z-index: 2; display: flex; gap: 8px; margin-bottom: 14px; color: #627286; font-size: .88rem; }
.download-hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 54px; min-height: 500px; }
.download-art { position: relative; height: 500px; }
.crop-download-hero { position: absolute; left: 0; top: 32px; width: 520px; height: 395px; filter: drop-shadow(0 20px 18px rgba(7,31,74,.14)); }
.crop-download-hero img { width: 1157px; left: -80px; top: -70px; }
.download-art .floating-cards { right: -8px; top: 118px; }
.download-copy h1 { margin-bottom: 6px; font-family: var(--serif); font-size: clamp(2.55rem, 4.5vw, 4rem); line-height: 1.15; }
.app-facts { margin: 18px 0 0; border: 1px solid #d8e1e4; border-radius: 7px; overflow: hidden; }
.app-facts div { display: grid; grid-template-columns: 140px 1fr; border-bottom: 1px solid #e2e8ea; }
.app-facts div:last-child { border-bottom: 0; }
.app-facts dt, .app-facts dd { margin: 0; padding: 8px 13px; font-size: .88rem; }
.app-facts dt { color: #536981; background: #f9fbfa; font-weight: 750; }
.app-facts dd { border-left: 1px solid #e2e8ea; }
.download-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.download-summary article { padding: 26px; background: white; border: 1px solid #e0e7e6; border-radius: 9px; text-align: center; box-shadow: 0 9px 22px rgba(7,31,74,.05); }
.download-summary article > span { width: 56px; height: 56px; display: grid; place-items: center; margin: 0 auto 13px; color: var(--green); background: var(--mint); border-radius: 50%; font-size: 1.5rem; font-weight: 800; }
.download-summary h3 { margin-bottom: 5px; font-family: var(--serif); }
.download-summary p { margin: 0; color: #617286; font-size: .88rem; }
.install-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.install-flow article { position: relative; padding: 8px 18px 20px; text-align: center; }
.install-flow article::after { content: "›"; position: absolute; right: -20px; top: 120px; color: #90bcb1; font-size: 3rem; }
.install-flow article:last-child::after { display: none; }
.install-flow article > span { width: 42px; height: 42px; display: grid; place-items: center; margin: 0 auto 12px; color: var(--green); background: var(--mint); border-radius: 50%; font-size: 1.4rem; font-weight: 800; }
.phone-step { width: 130px; height: 175px; display: grid; place-items: center; margin: 0 auto 14px; color: var(--green); background: linear-gradient(180deg, white, #edf6f2); border: 6px solid #637181; border-bottom-width: 12px; border-radius: 16px 16px 5px 5px; font-size: 2.2rem; box-shadow: inset 0 0 0 4px white, 0 8px 18px rgba(7,31,74,.08); }
.install-flow h3 { margin: 0; font-family: var(--sans); font-size: .88rem; line-height: 1.65; }
.download-modes { grid-template-columns: repeat(6, 1fr); }
.download-modes .mode-art { height: 105px; font-size: 1.4rem; }
.download-modes p { font-size: .76rem; }
.mobile-experience { padding-bottom: 46px; }
.experience-list { margin: 0; padding: 0; list-style: none; }
.experience-list li { display: flex; gap: 14px; padding: 12px 0; }
.experience-list li > span { flex: 0 0 42px; height: 42px; display: grid; place-items: center; color: var(--green); background: var(--mint); border-radius: 50%; font-weight: 800; }
.experience-list b { display: block; margin-bottom: 2px; }
.experience-list p { margin: 0; color: #617286; font-size: .86rem; }
.labelled-visual { min-height: 540px; }
.crop-phone { position: absolute; left: 50%; top: 0; width: 330px; height: 530px; transform: translateX(-50%); filter: drop-shadow(0 20px 18px rgba(7,31,74,.15)); }
.crop-phone img { width: 964px; left: -382px; top: -60px; }
.label { position: absolute; z-index: 3; padding: 5px 10px; color: var(--navy); background: rgba(255,255,255,.92); border: 1px solid #c8d8d6; border-radius: 999px; font-size: .78rem; font-weight: 750; }
.label::after { content: ""; position: absolute; top: 50%; width: 60px; height: 1px; background: var(--navy); }
.label-a { right: 0; top: 90px; }.label-a::after, .label-c::after, .label-d::after { right: 100%; }
.label-b { left: 0; top: 220px; }.label-b::after { left: 100%; }
.label-c { right: -10px; top: 275px; }
.label-d { right: -20px; bottom: 55px; }
.version-faq-section .split-layout { align-items: start; }
.version-card { padding: 24px; background: linear-gradient(135deg, #f0f8f4, #fff); border: 1px solid #dbe8e2; border-radius: 10px; }
.version-current { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.version-current span { padding: 5px 10px; color: white; background: var(--green); border-radius: 5px; font-size: .8rem; font-weight: 750; }
.version-current strong { font-family: var(--serif); font-size: 1.55rem; }
.version-current b { font-size: .86rem; }
.version-card dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0 0 15px; }
.version-card dl div { padding: 9px; border: 1px solid #dce6e2; background: white; }
.version-card dt { color: #637487; font-size: .75rem; }
.version-card dd { margin: 0; font-weight: 800; font-size: .85rem; }
.history-box { display: grid; grid-template-columns: .8fr 1.2fr; gap: 1px; background: #dce6e2; }
.history-box > div { padding: 15px; background: white; }
.history-box b, .history-box strong { display: block; }
.history-box strong { margin: 8px 0; font-size: 1.25rem; }
.history-box p, .history-box li { color: #627387; font-size: .76rem; }
.history-box ul { margin: 8px 0 0; padding-left: 18px; }
.faq-stack summary { font-size: .9rem; }

@media (max-width: 1060px) {
  .primary-nav { gap: 17px; font-size: .86rem; }
  .hero-grid { grid-template-columns: 1fr 430px; gap: 20px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-item:nth-child(2) { border-right: 0; }
  .action-grid { grid-template-columns: repeat(3, 1fr); }
  .download-modes { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr .8fr 1fr; }
  .footer-grid > div:last-child { grid-column: 1 / -1; display: flex; align-items: center; gap: 20px; }
}

@media (max-width: 820px) {
  html { scroll-padding-top: 64px; }
  .container { width: min(100% - 30px, 660px); }
  .site-header { position: sticky; }
  .nav-wrap { height: 62px; gap: 10px; }
  .brand { font-size: 1rem; }
  .brand-mark { font-size: 1.55rem; }
  .menu-toggle { display: flex; }
  .primary-nav { position: absolute; left: 0; right: 0; top: 61px; display: none; padding: 10px 15px 18px; background: white; border-bottom: 1px solid #dfe7e9; box-shadow: 0 15px 22px rgba(7,31,74,.08); }
  .primary-nav.open { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
  .primary-nav a { padding: 12px 8px; border-bottom: 1px solid #eef1f2; }
  .primary-nav a::after { display: none; }
  .header-download, .current-page { padding: 7px 12px; font-size: .76rem; }
  .header-download span { display: none; }
  .section { padding: 52px 0; }
  .compact-section { padding-top: 30px; }
  .hero { min-height: 0; }
  .hero-grid { display: flex; flex-direction: column; padding-block: 34px 38px; }
  .hero-copy { width: 100%; }
  .hero h1 { font-size: clamp(2.5rem, 11vw, 4rem); }
  .hero-lede { font-size: .98rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .button { width: 100%; }
  .tag-row { justify-content: center; }
  .version-note { text-align: center; }
  .hero-art { width: min(100%, 430px); height: 460px; }
  .crop-home-hero { left: 2px; transform: scale(.92); transform-origin: left top; }
  .floating-cards { right: 0; transform: scale(.8); transform-origin: right top; }
  .art-note-top { right: 18px; }
  .art-note-bottom { right: 10px; bottom: 28px; }
  .section-heading.centered span { width: 42px; }
  .section-heading h2 { font-size: 1.72rem; }
  .section-intro { font-size: .92rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-item { border-right: 0; border-bottom: 1px solid #dbe4e7; }
  .feature-item:last-child { border-bottom: 0; }
  .round-flow { grid-template-columns: 1fr; gap: 6px; padding: 15px; }
  .round-flow > i { transform: rotate(90deg); font-size: 1.5rem; }
  .mode-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .mode-art { height: 96px; font-size: 1.35rem; }
  .mode-grid h3 { font-size: 1rem; }
  .mode-grid p { font-size: .78rem; }
  .number-flow { grid-template-columns: 1fr; gap: 12px; }
  .number-flow article { display: grid; grid-template-columns: 42px 1fr; gap: 0 14px; padding: 15px; }
  .number-flow article::after { display: none; }
  .number-flow article > span { grid-row: 1 / 3; }
  .number-flow h3 { margin: 0; }
  .number-flow p { grid-column: 2; }
  .action-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .action-grid article { padding: 17px 10px; }
  .rules-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .rules-grid article { min-height: 210px; padding-inline: 13px; }
  .split-layout { grid-template-columns: 1fr; gap: 32px; }
  .guide-visual { min-height: 510px; }
  .reverse-mobile > .visual-panel { order: -1; }
  .visual-panel { min-height: 420px; }
  .crop-table { max-width: 470px; margin-inline: auto; }
  .rewards-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .rewards-grid article:last-child { grid-column: 1 / -1; }
  .faq-columns { grid-template-columns: 1fr; }
  .final-grid { grid-template-columns: 120px 1fr; gap: 18px; }
  .cta-cards { transform: scale(.72); transform-origin: left center; }
  .final-actions { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-grid > div:last-child { flex-wrap: wrap; }
  .site-footer { padding-bottom: 96px; }
  .mobile-download { position: fixed; z-index: 45; left: 12px; right: 12px; bottom: 10px; min-height: 48px; display: flex; align-items: center; justify-content: center; color: white; background: linear-gradient(135deg, #00856a, #00664f); border-radius: 8px; box-shadow: 0 10px 30px rgba(0,66,52,.32); font-weight: 800; }
  .download-hero { padding-top: 12px; }
  .download-hero-grid { display: flex; flex-direction: column-reverse; gap: 18px; min-height: 0; }
  .download-copy { width: 100%; }
  .download-copy h1 { font-size: clamp(2.35rem, 10vw, 3.4rem); }
  .download-art { width: min(100%, 480px); height: 485px; }
  .download-art .floating-cards { right: 3px; }
  .download-summary { grid-template-columns: 1fr; gap: 12px; }
  .install-flow { grid-template-columns: 1fr 1fr; gap: 16px; }
  .install-flow article::after { display: none; }
  .download-modes { grid-template-columns: 1fr 1fr; }
  .version-card { padding: 18px; }
}

@media (max-width: 520px) {
  .container { width: calc(100% - 28px); }
  .brand { font-size: .92rem; }
  .header-download, .current-page { min-height: 36px; }
  .hero-grid { padding-top: 26px; }
  .hero h1 { font-size: 2.55rem; line-height: 1.14; }
  .hero h1 br { display: none; }
  .hero-art { height: 430px; }
  .crop-home-hero { left: -10px; transform: scale(.83); }
  .floating-cards { top: 110px; transform: scale(.65); }
  .art-note { font-size: .76rem; }
  .section-heading h2 { font-size: 1.48rem; }
  .section-heading { gap: 8px; }
  .section-heading.centered span { width: 26px; }
  .mode-grid p { margin-inline: 10px; }
  .mode-grid h3 { margin-inline: 10px; }
  .action-grid { grid-template-columns: 1fr 1fr; }
  .rules-grid { grid-template-columns: 1fr; }
  .guide-visual { min-height: 545px; }
  .path-cards { grid-template-columns: 1fr; bottom: 66px; }
  .path-cards i { display: none; }
  .path-cards > div { padding: 7px; }
  .crop-guide { transform: translateX(-50%) scale(.83); transform-origin: top center; }
  .visual-panel { min-height: 360px; }
  .crop-table { transform: scale(.8); transform-origin: top center; width: 430px; left: 50%; translate: -50% 0; }
  .task-board > div { grid-template-columns: 1fr 76px; gap: 8px; }
  .rewards-grid { grid-template-columns: 1fr 1fr; }
  .final-grid { display: block; text-align: center; }
  .cta-cards { width: 180px; margin: 0 auto 5px; transform-origin: center; }
  .final-actions { margin-top: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div { grid-column: 1 / -1; }
  .footer-grid > div:last-child { display: block; }
  .download-copy h1 { font-size: 2.35rem; }
  .app-facts div { grid-template-columns: 112px 1fr; }
  .app-facts dt, .app-facts dd { padding: 7px 9px; font-size: .81rem; }
  .download-art { height: 430px; }
  .crop-download-hero { left: 50%; width: 450px; transform: translateX(-50%) scale(.82); transform-origin: top center; }
  .download-art .floating-cards { top: 120px; right: -20px; transform: scale(.58); }
  .install-flow { grid-template-columns: 1fr 1fr; gap: 4px; }
  .install-flow article { padding-inline: 5px; }
  .phone-step { width: 105px; height: 140px; }
  .install-flow h3 { font-size: .76rem; }
  .download-modes { grid-template-columns: 1fr 1fr; }
  .crop-phone { transform: translateX(-50%) scale(.86); transform-origin: top center; }
  .label { font-size: .67rem; }
  .label-a { right: -7px; }.label-b { left: -8px; }.label-c, .label-d { right: -8px; }
  .version-card dl { grid-template-columns: 1fr; }
  .history-box { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  .site-header, .mobile-download, .menu-toggle { display: none !important; }
  .section { break-inside: avoid; }
  body { color: black; background: white; }
}