:root {
  --ink: #0b1b38;
  --ink-soft: #355173;
  --blue: #3979ff;
  --blue-deep: #1d58d8;
  --cyan: #22b8c8;
  --violet: #8166e8;
  --orange: #f29a55;
  --sky: #e9f5ff;
  --paper: #f5f8fc;
  --line: #dce7f2;
  --muted: #6c7f98;
  --white: #fff;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1160px, calc(100% - 64px)); margin: 0 auto; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 30; border-bottom: 1px solid rgba(163,198,237,.16); color: #fff; background: rgba(7,23,52,.78); backdrop-filter: blur(18px); transition: background .25s ease, border-color .25s ease; }
.site-header.scrolled { border-color: rgba(116,163,221,.27); background: rgba(7,23,52,.96); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-mark { width: 35px; height: 35px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.28); border-radius: 10px; color: #fff; background: linear-gradient(145deg, #4f98ff, #1e5be1); box-shadow: 0 8px 24px rgba(28,94,222,.25); font-size: 18px; font-weight: 800; letter-spacing: -.06em; }
.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { color: #fff; font-size: 15px; letter-spacing: -.03em; }
.brand-copy small { color: #9cb7da; font-size: 7px; font-weight: 800; letter-spacing: .16em; }
.site-nav { display: flex; align-items: center; gap: 34px; margin-left: auto; color: #aec3df; font-size: 11px; }
.site-nav a { position: relative; padding: 30px 0; transition: color .2s ease; }
.site-nav a::after { content: ""; position: absolute; right: 0; bottom: 20px; left: 0; height: 2px; transform: scaleX(0); border-radius: 3px; background: #67d5e7; transition: transform .2s ease; }
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after { transform: scaleX(1); }
.menu-toggle { display: none; width: 36px; height: 36px; margin-left: auto; padding: 8px; border: 1px solid rgba(143,181,231,.4); border-radius: 7px; background: transparent; }
.menu-toggle span { display: block; height: 1px; margin: 5px 0; background: #dceaff; }

.hero { position: relative; min-height: 700px; overflow: hidden; padding: 145px 0 76px; color: #fff; background: radial-gradient(circle at 77% 12%, rgba(63,135,255,.32), transparent 28%), radial-gradient(circle at 20% 95%, rgba(44,170,209,.18), transparent 33%), linear-gradient(130deg, #07162f 0%, #0c2344 58%, #12345d 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .35; background-image: linear-gradient(rgba(128,173,233,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(128,173,233,.07) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom, #000, transparent 86%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(440px, .89fr) minmax(470px, 1.11fr); align-items: center; gap: 54px; }
.eyebrow { display: flex; align-items: center; gap: 8px; margin: 0; color: #9dc8ff; font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.eyebrow > span { width: 22px; height: 1px; display: inline-block; background: currentColor; }
.eyebrow.dark { color: var(--blue-deep); }
.hero h1 { margin: 23px 0 20px; font-size: clamp(43px, 5vw, 63px); font-weight: 650; letter-spacing: -.055em; line-height: 1.07; }
h1 em, h2 em, h3 em { color: #71d9ec; font-style: normal; }
.hero-lead { max-width: 500px; margin: 0; color: #b5c8e0; font-size: 14px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 43px; padding: 0 18px; border-radius: 7px; font-size: 11px; font-weight: 750; transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { border: 1px solid #4d98ff; color: #fff; background: linear-gradient(120deg, #428bff, #205dda); box-shadow: 0 12px 30px rgba(34,103,236,.28); }
.button-primary:hover { background: linear-gradient(120deg, #559bff, #276be9); box-shadow: 0 15px 35px rgba(34,103,236,.36); }
.button-quiet { border: 1px solid rgba(143,181,231,.33); color: #d9e7f7; background: rgba(255,255,255,.045); }
.button-quiet:hover { border-color: rgba(143,181,231,.65); background: rgba(255,255,255,.11); }
.button-cyan { border: 1px solid #54d5db; color: #fff; background: linear-gradient(120deg, #2bc5cf, #1598aa); box-shadow: 0 12px 30px rgba(20,164,180,.2); }
.button-cyan:hover { background: linear-gradient(120deg, #3bd4dc, #18a5b7); }
.button span, .product-link span { color: #a8dcff; font-size: 14px; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 42px; color: #829bbb; font-size: 9px; }
.hero-notes span { display: inline-flex; align-items: center; gap: 7px; }
.hero-notes b { color: #64b5ff; font-size: 8px; letter-spacing: .1em; }

.hero-visual { position: relative; min-height: 455px; display: grid; place-items: center; }
.visual-glow { position: absolute; width: 540px; height: 440px; border-radius: 50%; background: radial-gradient(ellipse, rgba(77,157,255,.3), transparent 67%); filter: blur(8px); }
.network-board { position: relative; z-index: 1; width: min(100%, 570px); overflow: hidden; border: 1px solid rgba(154,201,255,.3); border-radius: 15px; background: linear-gradient(140deg, rgba(22,52,93,.95), rgba(8,25,51,.97)); box-shadow: 0 35px 80px rgba(0,0,0,.32), inset 0 1px rgba(255,255,255,.1); transform: perspective(1100px) rotateY(-5deg) rotateX(2deg); }
.board-top { min-height: 40px; display: flex; align-items: center; gap: 11px; padding: 0 17px; border-bottom: 1px solid rgba(157,199,247,.14); color: #7189a8; font-size: 8px; letter-spacing: .12em; }
.window-dots { display: inline-flex; gap: 4px; margin-right: auto; }
.window-dots i { width: 6px; height: 6px; border-radius: 50%; background: #446384; }
.board-top b { color: #75d8b0; font-size: 8px; font-weight: 800; letter-spacing: .14em; }
.board-heading { display: flex; align-items: flex-end; justify-content: space-between; padding: 26px 28px 18px; }
.board-heading div { display: grid; gap: 7px; }
.board-heading small { color: #7090b5; font-size: 8px; letter-spacing: .16em; }
.board-heading strong { color: #f2f7ff; font-size: 20px; font-weight: 600; letter-spacing: -.04em; }
.board-chip { padding: 5px 8px; border: 1px solid rgba(126,181,255,.25); border-radius: 4px; color: #9dc8ff; font-size: 8px; }
.board-flow { display: grid; grid-template-columns: 1fr 70px 1fr; align-items: center; gap: 12px; padding: 0 28px 23px; }
.flow-node { min-height: 102px; display: grid; align-content: center; gap: 6px; padding: 15px; border: 1px solid rgba(136,187,245,.18); border-radius: 9px; background: rgba(255,255,255,.045); }
.flow-node b { color: #e5f1ff; font-size: 11px; font-weight: 650; }
.flow-node small { color: #7693b7; font-size: 8px; line-height: 1.6; }
.node-icon { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; color: #fff; background: linear-gradient(145deg, #4b97ff, #1d5edb); font-size: 15px; }
.node-icon.cyan { background: linear-gradient(145deg, #39d1d5, #168fa8); }
.flow-line { display: flex; align-items: center; justify-content: center; gap: 6px; }
.flow-line::before { content: ""; position: absolute; width: 58px; height: 1px; background: linear-gradient(90deg, #3d86f7, #4ed1dc); opacity: .55; }
.flow-line i { position: relative; z-index: 1; width: 5px; height: 5px; border-radius: 50%; background: #65c4fa; box-shadow: 0 0 0 4px rgba(84,177,255,.12); }
.board-divider { height: 1px; margin: 0 28px; background: rgba(151,194,244,.16); }
.board-vlan { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 28px; }
.vlan-copy { display: flex; align-items: center; gap: 11px; }
.vlan-copy > div { display: grid; gap: 5px; }
.vlan-copy b { color: #e5f1ff; font-size: 11px; font-weight: 650; }
.vlan-copy small { color: #7693b7; font-size: 8px; }
.device-stack { display: flex; gap: 5px; }
.device-stack span { display: grid; place-items: center; width: 33px; height: 26px; border: 1px solid rgba(74,207,220,.32); border-radius: 5px; color: #82dae2; background: rgba(48,190,204,.1); font-size: 7px; font-weight: 800; }
.board-foot { display: flex; justify-content: space-between; padding: 13px 28px 17px; border-top: 1px solid rgba(151,194,244,.13); color: #6f8bad; font-size: 8px; }
.board-foot span:first-child { color: #8ccba9; }
.float-label { position: absolute; z-index: 2; display: grid; gap: 3px; min-width: 94px; padding: 10px 12px; border: 1px solid rgba(135,194,255,.28); border-radius: 8px; background: rgba(14,39,72,.86); box-shadow: 0 15px 30px rgba(0,0,0,.18); }
.float-label b { color: #e1efff; font-size: 10px; font-weight: 650; }
.float-label small { color: #78a2ca; font-size: 8px; }
.float-label-a { top: 14%; left: -3%; }
.float-label-b { right: -3%; bottom: 13%; }
.hero-gridline { position: absolute; right: 0; bottom: 0; left: 0; display: flex; align-items: flex-end; gap: 7px; height: 40px; padding: 0 6%; opacity: .7; }
.hero-gridline span { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, rgba(111,191,255,.5), transparent); }

.intro-strip { border-bottom: 1px solid var(--line); background: #fff; }
.intro-strip-inner { min-height: 86px; display: flex; align-items: center; gap: 20px; }
.strip-label { color: var(--blue-deep); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.intro-strip p { margin: 0; color: var(--muted); font-size: 12px; }
.intro-strip a { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; color: var(--blue-deep); font-size: 10px; font-weight: 750; }
.intro-strip a span { font-size: 14px; }

.section { padding: 118px 0; }
.product-section { background: var(--paper); }
.section-heading { max-width: 625px; }
.section-heading h2, .scenario-copy h2, .download-heading h2 { margin: 20px 0 16px; color: var(--ink); font-size: clamp(35px, 4.7vw, 56px); font-weight: 640; letter-spacing: -.07em; line-height: 1.07; }
.section-heading h2 em, .download-heading h2 em { color: var(--blue-deep); }
.section-heading > p:last-child, .download-heading > p:last-child { max-width: 530px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 56px; }
.product-card { position: relative; min-height: 570px; overflow: hidden; padding: 35px 36px 32px; border: 1px solid var(--line); border-radius: 13px; background: #fff; box-shadow: 0 20px 50px rgba(25,57,103,.06); transition: transform .25s ease, box-shadow .25s ease; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 28px 65px rgba(25,57,103,.12); }
.product-card-sk5 { background: radial-gradient(circle at 100% 0, rgba(87,155,255,.13), transparent 36%), #fff; }
.product-card-vlan { background: radial-gradient(circle at 100% 0, rgba(74,209,226,.14), transparent 36%), #fff; }
.product-card-top { display: flex; align-items: center; gap: 10px; color: #8493a5; font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.product-index { color: var(--blue-deep); }
.product-kicker { color: #8290a3; }
.product-orb { width: 15px; height: 15px; margin-left: auto; border-radius: 50%; }
.orb-blue { border: 4px solid #d7e8ff; background: #5295ff; box-shadow: 0 0 0 7px rgba(67,143,255,.08); }
.orb-cyan { border: 4px solid #d5f8fa; background: #44ccd5; box-shadow: 0 0 0 7px rgba(68,204,213,.09); }
.product-symbol { position: absolute; top: 87px; right: 36px; width: 80px; height: 80px; display: grid; place-items: center; }
.product-symbol span { position: absolute; width: 37px; height: 37px; border: 1px solid currentColor; border-radius: 10px; transform: rotate(45deg); }
.product-symbol span:nth-child(2) { transform: translate(15px, 15px) rotate(45deg); opacity: .48; }
.product-symbol span:nth-child(3) { transform: translate(30px, 30px) rotate(45deg); opacity: .18; }
.symbol-blue { color: #4e91ff; }
.symbol-cyan { color: #35c9d6; }
.symbol-cyan span { width: 13px; height: 13px; border-radius: 50%; transform: none; background: currentColor; }
.symbol-cyan span:nth-child(2) { transform: translate(25px, -18px); opacity: .6; }
.symbol-cyan span:nth-child(3) { transform: translate(26px, 22px); opacity: .35; }
.symbol-cyan span:nth-child(4) { transform: translate(-23px, 18px); opacity: .25; }
.product-card h3 { position: relative; z-index: 1; margin: 86px 0 16px; color: var(--ink); font-size: 35px; font-weight: 630; letter-spacing: -.075em; line-height: 1.05; }
.product-card-sk5 h3 em { color: var(--blue-deep); }
.product-card-vlan h3 em { color: #20aebb; }
.product-card > p { max-width: 430px; min-height: 72px; margin: 0 0 22px; color: var(--muted); font-size: 12px; line-height: 1.85; }
.feature-list { display: grid; gap: 13px; margin: 0; padding: 0; list-style: none; color: #62738a; font-size: 11px; line-height: 1.6; }
.feature-list li { display: flex; align-items: flex-start; gap: 9px; }
.feature-list i { width: 16px; height: 16px; display: grid; flex: 0 0 auto; place-items: center; border-radius: 50%; color: #fff; background: var(--blue); font-size: 9px; font-style: normal; font-weight: 800; }
.product-card-vlan .feature-list i { background: #20b8c3; }
.feature-list b { color: #223854; font-weight: 700; }
.product-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 29px; color: var(--blue-deep); font-size: 11px; font-weight: 800; }
.product-card-vlan .product-link { color: #1597a4; }
.product-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.product-actions .product-link { margin-top: 25px; }
.product-upcoming { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 18px; color: #7990a6; font-size: 8px; }
.product-upcoming span { padding: 4px 6px; border: 1px solid #cfe4e8; border-radius: 4px; color: #388b94; background: #f1fbfc; }
.product-upcoming span:first-child { padding: 0; border: 0; color: #8a9bae; background: transparent; font-weight: 750; }

.features-section { border-top: 1px solid var(--line); background: #fff; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px; margin-top: 56px; }
.feature-card { position: relative; min-height: 260px; overflow: hidden; padding: 24px 22px 20px; border: 1px solid var(--line); border-radius: 11px; background: linear-gradient(145deg, #fff, #f7fbff); transition: transform .25s ease, box-shadow .25s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 17px 35px rgba(24,71,132,.1); }
.feature-number { position: absolute; top: 21px; right: 21px; color: #a1b4ca; font-size: 9px; font-weight: 800; letter-spacing: .1em; }
.feature-icon { width: 39px; height: 39px; display: grid; place-items: center; margin-bottom: 29px; border-radius: 11px; color: #fff; font-size: 20px; font-weight: 500; }
.feature-icon.blue { background: linear-gradient(145deg, #4e94ff, #245ed6); }
.feature-icon.cyan { background: linear-gradient(145deg, #3bd1d5, #168fa8); }
.feature-icon.violet { background: linear-gradient(145deg, #9a83f0, #6751ca); }
.feature-icon.orange { background: linear-gradient(145deg, #f4b16e, #e47736); }
.feature-card h3 { margin: 0 0 10px; color: #163252; font-size: 16px; font-weight: 700; letter-spacing: -.03em; }
.feature-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }
.feature-caption { position: absolute; right: 22px; bottom: 19px; color: #a1b1c3; font-size: 8px; font-weight: 800; letter-spacing: .12em; }

.scenario-section { padding: 105px 0; color: #fff; background: radial-gradient(circle at 85% 15%, rgba(50,128,255,.24), transparent 28%), linear-gradient(125deg, #081a38, #102d56 72%, #0d2445); }
.scenario-layout { display: grid; grid-template-columns: .84fr 1.16fr; gap: 88px; align-items: start; }
.scenario-copy h2 { color: #fff; }
.scenario-copy h2 em { color: #73d9ed; }
.scenario-copy > p:last-child { max-width: 360px; margin: 0; color: #9fb8d6; font-size: 13px; line-height: 1.9; }
.scenario-list { display: grid; border-top: 1px solid rgba(151,194,244,.25); }
.scenario-item { display: grid; grid-template-columns: 37px minmax(0, 1fr) auto; align-items: center; gap: 14px; min-height: 74px; border-bottom: 1px solid rgba(151,194,244,.17); transition: padding .2s ease, background .2s ease; }
.scenario-item:hover { padding: 0 13px; background: rgba(255,255,255,.05); }
.scenario-mark { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; color: #fff; font-size: 14px; }
.scenario-mark.blue { background: rgba(71,143,255,.25); color: #7db6ff; }
.scenario-mark.cyan { background: rgba(52,206,214,.2); color: #6fdfe2; }
.scenario-item div { display: grid; gap: 5px; }
.scenario-item b { color: #e7f1ff; font-size: 12px; font-weight: 650; }
.scenario-item small { color: #829fc3; font-size: 9px; }
.scenario-item > span:last-child { color: #6287b4; font-size: 9px; font-weight: 800; }

.downloads-section { background: var(--paper); }
.download-heading { max-width: 570px; }
.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 54px; }
.download-card { position: relative; min-height: 300px; padding: 31px 33px 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 13px; background: #fff; box-shadow: 0 18px 44px rgba(25,57,103,.06); }
.download-card::after { content: ""; position: absolute; right: -52px; bottom: -100px; width: 220px; height: 220px; border: 1px solid rgba(99,163,255,.18); border-radius: 50%; box-shadow: 0 0 0 24px rgba(99,163,255,.04), 0 0 0 48px rgba(99,163,255,.025); }
.download-card-vlan::after { border-color: rgba(41,194,201,.2); box-shadow: 0 0 0 24px rgba(41,194,201,.04), 0 0 0 48px rgba(41,194,201,.025); }
.download-card-head { display: flex; align-items: center; gap: 11px; }
.download-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; color: #fff; font-size: 18px; }
.download-icon.blue { background: linear-gradient(145deg, #4e94ff, #245ed6); }
.download-icon.cyan { background: linear-gradient(145deg, #3bd1d5, #168fa8); }
.download-type { color: #8b9bae; font-size: 8px; font-weight: 800; letter-spacing: .14em; }
.download-card h3 { position: relative; z-index: 1; margin: 24px 0 10px; color: var(--ink); font-size: 25px; font-weight: 650; letter-spacing: -.05em; }
.download-card p { position: relative; z-index: 1; max-width: 400px; min-height: 42px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }
.download-meta { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 22px; }
.download-meta span { padding: 5px 8px; border-radius: 5px; color: #4e6f95; background: #edf5ff; font-size: 8px; font-weight: 750; }
.download-card-vlan .download-meta span { color: #367c84; background: #ecfbfc; }
.download-card .button { position: relative; z-index: 1; min-width: 112px; }

.site-footer { color: #94a9c5; background: #071427; }
.footer-main { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; min-height: 116px; }
.footer-brand .brand-mark { width: 31px; height: 31px; font-size: 15px; }
.footer-links { display: flex; gap: 22px; font-size: 10px; }
.footer-links a:hover { color: #d7e9ff; }
.footer-note { justify-self: end; margin: 0; color: #6883a8; font-size: 10px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; min-height: 52px; border-top: 1px solid rgba(145,184,230,.12); color: #5d7598; font-size: 9px; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal-delay { transition-delay: .12s; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr; gap: 43px; }
  .hero { padding-top: 125px; }
  .hero-copy { max-width: 680px; }
  .hero-visual { max-width: 670px; min-height: 430px; margin: 0 auto; width: 100%; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scenario-layout { gap: 48px; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 36px, 590px); }
  .nav-wrap { min-height: 66px; }
  .site-nav { position: absolute; top: 66px; right: 18px; left: 18px; display: none; align-items: stretch; flex-direction: column; gap: 0; padding: 8px 16px; border: 1px solid rgba(137,183,242,.22); border-radius: 8px; background: rgba(7,22,43,.98); box-shadow: 0 18px 40px rgba(0,0,0,.25); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 13px 0; border-bottom: 1px solid rgba(137,183,242,.12); }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav a::after { display: none; }
  .menu-toggle { display: block; }
  .hero { min-height: auto; padding: 93px 0 25px; }
  .hero-grid { gap: 21px; }
  .hero h1 { font-size: clamp(38px, 11vw, 48px); }
  .hero-lead { font-size: 12px; }
  .hero-actions { align-items: stretch; flex-direction: column; margin-top: 26px; }
  .hero-actions .button { width: 100%; }
  .hero-notes { gap: 12px; margin-top: 25px; }
  .hero-visual { height: 294px; min-height: 0; overflow: hidden; place-items: start center; }
  .visual-glow, .float-label { display: none; }
  .network-board { width: 155%; transform: scale(.62); transform-origin: center top; }
  .board-heading, .board-flow, .board-vlan, .board-foot { padding-right: 16px; padding-left: 16px; }
  .board-divider { margin-right: 16px; margin-left: 16px; }
  .intro-strip-inner { align-items: flex-start; flex-wrap: wrap; gap: 8px 15px; padding: 20px 0; }
  .intro-strip p { width: 100%; order: 3; }
  .intro-strip a { margin-left: 0; }
  .section { padding: 80px 0; }
  .product-section { padding-top: 54px; }
  .product-grid, .download-grid, .scenario-layout { grid-template-columns: 1fr; }
  .product-card { min-height: auto; padding: 29px 25px; }
  .product-card h3 { margin-top: 72px; font-size: 31px; }
  .product-card > p { min-height: auto; }
  .feature-grid { grid-template-columns: 1fr; margin-top: 42px; }
  .feature-card { min-height: 215px; }
  .scenario-section { padding: 79px 0; }
  .scenario-layout { gap: 44px; }
  .scenario-item { min-height: 68px; }
  .download-grid { margin-top: 42px; }
  .download-card { min-height: auto; padding: 27px 25px; }
  .download-card p { min-height: auto; }
  .footer-main { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .footer-note { justify-self: start; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; padding: 17px 0; }
}

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

.legal-body { min-height: 100vh; color: var(--ink); background: linear-gradient(145deg, #f5f9ff, #eef4fb); }
.legal-shell { width: min(820px, calc(100% - 36px)); margin: 0 auto; padding: 54px 0 80px; }
.legal-back { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-deep); font-size: 11px; font-weight: 750; }
.legal-back:hover { color: #0d43a7; }
.legal-card { margin-top: 32px; padding: clamp(28px, 6vw, 62px); border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: 0 22px 60px rgba(25,57,103,.08); }
.legal-card .eyebrow { color: var(--blue-deep); }
.legal-card h1 { margin: 18px 0 10px; color: var(--ink); font-size: clamp(32px, 5vw, 48px); letter-spacing: -.07em; }
.legal-updated { margin: 0 0 35px; color: #8897aa; font-size: 10px; }
.legal-card h2 { margin: 30px 0 10px; color: #173354; font-size: 17px; letter-spacing: -.03em; }
.legal-card p, .legal-card li { color: #61738a; font-size: 12px; line-height: 1.9; }
.legal-card ul { margin: 8px 0 0; padding-left: 20px; }
.legal-note { margin: 20px 0; padding: 14px 16px; border: 1px solid #cfe0f7; border-radius: 8px; color: #42658d; background: #f3f8ff; font-size: 11px; line-height: 1.7; }
.legal-footer { display: flex; justify-content: space-between; gap: 18px; margin-top: 23px; color: #8292a6; font-size: 10px; }
.legal-footer a { color: var(--blue-deep); }

/* Search-friendly product and guide pages share a compact, readable layout. */
.seo-page { min-height: 100vh; background: var(--paper); }
.seo-page .site-header { color: var(--ink); border-color: var(--line); background: rgba(255,255,255,.92); }
.seo-page .site-header.scrolled { background: rgba(255,255,255,.98); }
.seo-page .brand-copy strong { color: var(--ink); }
.seo-page .brand-copy small { color: #6c86a8; }
.seo-page .brand-mark { color: #fff; }
.seo-page .site-nav { color: #5b6f89; }
.seo-page .site-nav a:hover { color: var(--blue-deep); }
.seo-page .menu-toggle { border-color: #b9cce3; }
.seo-page .menu-toggle span { background: var(--ink-soft); }
.seo-hero { position: relative; overflow: hidden; padding: 150px 0 88px; color: #fff; background: radial-gradient(circle at 80% 10%, rgba(70,147,255,.34), transparent 28%), linear-gradient(130deg, #07162f, #10335f 80%); }
.seo-hero::after { content: ""; position: absolute; right: -80px; bottom: -170px; width: 440px; height: 440px; border: 1px solid rgba(145,205,255,.19); border-radius: 50%; box-shadow: 0 0 0 30px rgba(145,205,255,.035), 0 0 0 60px rgba(145,205,255,.025); }
.seo-hero .container { position: relative; z-index: 1; }
.seo-breadcrumb { display: flex; align-items: center; gap: 9px; margin: 0 0 19px; color: #9dc8ff; font-size: 10px; font-weight: 750; }
.seo-breadcrumb a { color: #b8d5fa; }
.seo-breadcrumb span { color: #6187b6; }
.seo-hero h1 { max-width: 780px; margin: 0 0 19px; color: #fff; font-size: clamp(35px, 5vw, 59px); font-weight: 650; letter-spacing: -.06em; line-height: 1.1; }
.seo-hero h1 em { color: #6ed8ec; font-style: normal; }
.seo-hero-lead { max-width: 680px; margin: 0; color: #b7c9df; font-size: 14px; line-height: 1.9; }
.seo-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.seo-main { padding: 82px 0 120px; }
.seo-main-grid { display: grid; grid-template-columns: minmax(0, 1fr) 285px; gap: 66px; align-items: start; }
.seo-content { min-width: 0; }
.seo-content h2 { margin: 0 0 14px; color: var(--ink); font-size: clamp(25px, 3vw, 36px); letter-spacing: -.055em; }
.seo-content h2 em { color: var(--blue-deep); font-style: normal; }
.seo-content h3 { margin: 34px 0 10px; color: #173354; font-size: 20px; letter-spacing: -.035em; }
.seo-content p, .seo-content li { color: #60758e; font-size: 13px; line-height: 1.95; }
.seo-content p { margin: 0 0 14px; }
.seo-content ul, .seo-content ol { margin: 10px 0 20px; padding-left: 22px; }
.seo-content li { margin: 7px 0; }
.seo-content strong { color: #284869; }
.seo-aside { position: sticky; top: 104px; display: grid; gap: 12px; }
.seo-aside-card { padding: 20px; border: 1px solid var(--line); border-radius: 11px; background: #fff; box-shadow: 0 14px 35px rgba(22,62,110,.06); }
.seo-aside-card h2 { margin: 0 0 12px; color: var(--ink); font-size: 14px; }
.seo-aside-card a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid #edf2f7; color: #496583; font-size: 11px; }
.seo-aside-card a:first-of-type { border-top: 0; }
.seo-aside-card a:hover { color: var(--blue-deep); }
.seo-aside-card a span { color: #9bb1cb; }
.seo-callout { margin: 27px 0; padding: 19px 21px; border: 1px solid #cde1fb; border-radius: 10px; color: #4c6d94; background: linear-gradient(135deg, #f5faff, #edf6ff); font-size: 12px; line-height: 1.8; }
.seo-callout strong { color: #245abe; }
.seo-feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; margin: 25px 0 37px; }
.seo-feature-card { min-height: 146px; padding: 20px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.seo-feature-card b { display: block; margin-bottom: 8px; color: var(--blue-deep); font-size: 12px; }
.seo-feature-card h3 { margin: 0 0 7px; color: #173354; font-size: 15px; }
.seo-feature-card p { margin: 0; font-size: 11px; line-height: 1.75; }
.seo-steps { display: grid; gap: 11px; margin: 23px 0 36px; }
.seo-step { display: grid; grid-template-columns: 31px minmax(0, 1fr); gap: 13px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.seo-step > b { color: var(--blue); font-size: 11px; }
.seo-step h3 { margin: 0 0 5px; font-size: 14px; }
.seo-step p { margin: 0; font-size: 11px; }
.seo-download { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-top: 33px; padding: 22px 24px; border-radius: 11px; color: #fff; background: linear-gradient(120deg, #1454c6, #297fe9); box-shadow: 0 17px 35px rgba(31,102,216,.2); }
.seo-download h2 { margin: 0 0 6px; color: #fff; font-size: 20px; }
.seo-download p { margin: 0; color: #bfdcff; font-size: 11px; line-height: 1.7; }
.seo-download .button { flex: 0 0 auto; border-color: rgba(255,255,255,.42); background: rgba(255,255,255,.14); box-shadow: none; }
.seo-download .button:hover { background: rgba(255,255,255,.23); }
.seo-table { width: 100%; margin: 20px 0 30px; border-collapse: collapse; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.seo-table th, .seo-table td { padding: 12px 14px; border-bottom: 1px solid #edf2f7; color: #60758e; font-size: 11px; line-height: 1.65; text-align: left; vertical-align: top; }
.seo-table th { color: #274665; background: #f5f9fe; font-weight: 750; }
.seo-table tr:last-child td { border-bottom: 0; }
.guide-list { display: grid; gap: 12px; margin-top: 28px; }
.guide-card { display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; align-items: center; gap: 15px; padding: 19px 20px; border: 1px solid var(--line); border-radius: 10px; background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.guide-card:hover { transform: translateY(-3px); box-shadow: 0 13px 30px rgba(24,70,130,.08); }
.guide-card > b { color: var(--blue); font-size: 11px; }
.guide-card h2 { margin: 0 0 5px; color: #183757; font-size: 15px; }
.guide-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.guide-card > span { color: var(--blue-deep); font-size: 11px; font-weight: 750; }
.faq-list { display: grid; gap: 10px; margin-top: 25px; }
.faq-item { padding: 18px 20px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.faq-item h2 { margin: 0 0 8px; color: #183757; font-size: 15px; }
.faq-item p { margin: 0; font-size: 12px; }

@media (max-width: 760px) {
  .seo-hero { padding: 112px 0 66px; }
  .seo-hero h1 { font-size: clamp(33px, 10vw, 46px); }
  .seo-hero-lead { font-size: 12px; }
  .seo-hero-actions { flex-direction: column; }
  .seo-hero-actions .button { width: 100%; }
  .seo-main { padding: 60px 0 82px; }
  .seo-main-grid { grid-template-columns: 1fr; gap: 42px; }
  .seo-aside { position: static; }
  .seo-feature-grid { grid-template-columns: 1fr; }
  .seo-download { align-items: flex-start; flex-direction: column; }
  .seo-download .button { width: 100%; }
  .guide-card { grid-template-columns: 34px minmax(0, 1fr); }
  .guide-card > span { grid-column: 2; }
}