:root {
  color-scheme: light;
  --ink: #071025;
  --muted: #5d6a82;
  --line: rgba(42, 64, 102, 0.14);
  --paper: #f7f9ff;
  --blue: #001dff;
  --blue-2: #2f7cff;
  --cyan: #bdfcff;
  --orange: #ff9900;
  --green: #14b85a;
  --red: #e5484d;
  --panel: rgba(255, 255, 255, 0.86);
  --shadow: 0 30px 90px rgba(0, 29, 255, 0.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.75;
  background:
    radial-gradient(circle at 86% 4%, rgba(189, 252, 255, 0.7), transparent 24%),
    radial-gradient(circle at 12% 30%, rgba(0, 29, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #fff 0%, var(--paper) 40%, #eef4ff 100%);
  word-break: keep-all;
  overflow-wrap: anywhere;
}
img, svg { max-width: 100%; }
h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--blue-2); outline-offset: 3px; border-radius: 8px; }
.wrap { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.center { text-align: center; }
.grad { background: linear-gradient(100deg, var(--blue), var(--blue-2) 60%, #00b7d6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--blue); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.fine { font-size: 12.5px; color: var(--muted); margin-top: 14px; line-height: 1.6; }

/* header */
.header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: rgba(255, 255, 255, 0.78); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; text-decoration: none; letter-spacing: 0.01em; }
.brand img { border-radius: 10px; }
.button-small { white-space: nowrap; flex-shrink: 0; }
@media (max-width: 480px) { .brand span { font-size: 0.85rem; line-height: 1.3; } }
.header nav { display: flex; gap: 4px; margin-left: auto; }
.header nav a { padding: 8px 12px; border-radius: 999px; font-size: 14px; font-weight: 700; text-decoration: none; color: #34415c; }
.header nav a:hover { background: rgba(0, 29, 255, 0.07); color: var(--blue); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 999px; border: 0; font-weight: 900; font-size: 15px; text-decoration: none; color: #fff; background: var(--blue); box-shadow: 0 12px 30px rgba(0, 29, 255, 0.28); transition: transform 0.2s, box-shadow 0.2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(0, 29, 255, 0.34); }
.button-small { min-height: 44px; padding: 0 18px; font-size: 14px; }
.button-ghost { color: var(--blue); background: #fff; border: 2px solid rgba(0, 29, 255, 0.2); box-shadow: none; }
.button-ghost:hover { box-shadow: 0 8px 20px rgba(0, 29, 255, 0.12); }

/* hero */
.hero { position: relative; padding: 56px 0 72px; overflow: hidden; }
.hero-blobs i { position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.5; z-index: 0; animation: drift 14s ease-in-out infinite; }
.hero-blobs i:first-child { width: 420px; height: 420px; left: -120px; top: -80px; background: #9fb4ff; }
.hero-blobs i:last-child { width: 360px; height: 360px; right: -80px; top: 120px; background: #bdfcff; animation-delay: -6s; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1.05fr; gap: 32px; align-items: center; }
.pill { display: inline-flex; gap: 10px; align-items: center; padding: 6px 14px 6px 6px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 13px; font-weight: 700; color: #34415c; box-shadow: 0 6px 20px rgba(0, 29, 255, 0.08); }
.pill b { background: var(--blue); color: #fff; padding: 2px 10px; border-radius: 999px; font-size: 12px; }
.hero h1 { margin: 22px 0 18px; font-size: clamp(46px, 7vw, 86px); line-height: 1.04; font-weight: 900; letter-spacing: -0.02em; }
.hero h1 span { display: block; }
.hero-lead { font-size: 17px; color: #36425c; line-height: 1.9; }
.hero-lead strong { color: var(--blue); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 32px; }
.metrics { display: flex; gap: 12px; flex-wrap: wrap; }
.metrics div { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 12px 18px; min-width: 128px; box-shadow: 0 10px 28px rgba(0, 29, 255, 0.07); }
.metrics dt { font-size: 32px; font-weight: 900; color: var(--blue); line-height: 1.1; }
.metrics dd { font-size: 12.5px; color: var(--muted); line-height: 1.5; margin-top: 4px; }
.hero-stage { position: relative; min-height: 440px; display: flex; align-items: center; }
.hero-arch { width: 100%; height: auto; filter: drop-shadow(0 24px 40px rgba(0, 29, 255, 0.12)); }
.h-edges path { stroke: rgba(0, 29, 255, 0.22); stroke-dasharray: 2 9; animation: dash 1.4s linear infinite; }
.h-node rect { fill: #fff; stroke: rgba(0, 29, 255, 0.25); stroke-width: 2; }
.h-node.n-aws rect { stroke: rgba(255, 153, 0, 0.7); }
.h-node circle, .h-node path { fill: none; stroke: var(--blue); stroke-width: 2.4; stroke-linecap: round; }
.h-node text { fill: #243049; font-size: 11px; font-weight: 700; stroke: none; }
.h-node.on rect { fill: #fff6e6; stroke: var(--orange); stroke-width: 3; }
.h-packet { fill: var(--orange); filter: drop-shadow(0 0 8px rgba(255, 153, 0, 0.9)); }
.h-packet.p2 { fill: var(--blue-2); filter: drop-shadow(0 0 8px rgba(47, 124, 255, 0.8)); }
.h-note { fill: var(--muted); font-size: 13px; font-weight: 700; }
.hero-phone { position: absolute; right: 2%; bottom: -24px; width: 34%; max-width: 190px; animation: float 6s ease-in-out infinite; }
.chip { position: absolute; padding: 8px 14px; border-radius: 14px; background: #fff; font-weight: 900; font-size: 13px; color: var(--blue); box-shadow: 0 14px 34px rgba(0, 29, 255, 0.16); animation: drift 7s ease-in-out infinite; }
.chip.c1 { left: 0; top: 4%; }
.chip.c2 { right: 6%; top: 0; animation-delay: -2s; }
.chip.c3 { right: 8%; bottom: 8%; animation-delay: -4s; }

.phone { background: #0b1020; border-radius: 34px; padding: 8px; box-shadow: 0 30px 70px rgba(7, 16, 37, 0.3); }
.phone img { display: block; width: 100%; height: auto; border-radius: 27px; }

/* sections */
.section { padding: 96px 0; position: relative; }
.section-head { max-width: 640px; }
.section-head.center { margin: 0 auto 48px; max-width: 760px; }
.eyebrow { font-size: 12.5px; font-weight: 900; letter-spacing: 0.14em; color: var(--blue); margin-bottom: 12px; }
.section-head h2 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.22; font-weight: 900; letter-spacing: -0.01em; }
.section-lead { margin-top: 18px; color: #435069; font-size: 16px; line-height: 1.9; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js .reveal.in { opacity: 1; transform: none; }

/* lab */
.lab-card { background: var(--panel); border: 1px solid var(--line); border-radius: 32px; box-shadow: var(--shadow); padding: 18px; }
.lab-tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 4px 14px; scrollbar-width: none; }
.lab-tabs::-webkit-scrollbar { display: none; }
.lab-tabs button { flex: 1 0 auto; display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 0 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 900; font-size: 14px; white-space: nowrap; color: #34415c; }
.lab-tabs button i { font-style: normal; font-size: 11px; color: var(--blue); opacity: 0.7; }
.lab-tabs button[aria-selected="true"] { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: 0 10px 24px rgba(0, 29, 255, 0.28); }
.lab-tabs button[aria-selected="true"] i { color: #bdfcff; }
.lab-panel { display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px; align-items: stretch; }
.lab-panel[hidden] { display: none; }
.lab-canvas { background: linear-gradient(180deg, #fff, #f1f5ff); border: 1px solid var(--line); border-radius: 24px; padding: 12px; display: flex; align-items: center; }
.scene { width: 100%; height: auto; display: block; }
.lab-side { padding: 14px 10px 10px; display: flex; flex-direction: column; gap: 12px; }
.step-count { font-size: 13px; font-weight: 900; color: var(--blue); letter-spacing: 0.1em; }
.step-title { font-size: 24px; line-height: 1.35; font-weight: 900; }
.step-body { color: #435069; font-size: 15px; }
.step-point { background: #fff6e6; border-left: 4px solid var(--orange); border-radius: 0 12px 12px 0; padding: 10px 14px; font-size: 14px; font-weight: 700; color: #6b4300; min-height: 3em; }
.lab-controls { display: flex; gap: 8px; margin-top: auto; }
.ctl { min-height: 44px; min-width: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 900; font-size: 14px; }
.ctl:hover { border-color: var(--blue); color: var(--blue); }
.ctl.play { flex: 1; }
.dots { display: flex; gap: 6px; }
.dots li { height: 6px; flex: 1; border-radius: 3px; background: rgba(0, 29, 255, 0.12); overflow: hidden; }
.dots li.on { background: var(--blue); }
.range { display: grid; gap: 6px; font-size: 14px; font-weight: 700; }
.range input { width: 100%; height: 44px; accent-color: var(--blue); }

/* scene svg parts */
.scene .edges path { stroke: rgba(0, 29, 255, 0.18); stroke-width: 3; stroke-linecap: round; transition: stroke 0.3s; }
.scene .edges path.on { stroke: var(--orange); stroke-dasharray: 3 8; animation: dash 0.9s linear infinite; }
.node rect { fill: #fff; stroke: #c9d3ec; stroke-width: 2; transition: all 0.35s; }
.node.aws rect { stroke: rgba(255, 153, 0, 0.55); }
.node circle, .node path, .node ellipse { fill: none; stroke: #5d6a82; stroke-width: 2.4; stroke-linecap: round; transition: stroke 0.35s; }
.node text { fill: #243049; font-size: 11.5px; font-weight: 700; }
.node.on rect { fill: #fff6e6; stroke: var(--orange); stroke-width: 3; filter: drop-shadow(0 8px 14px rgba(255, 153, 0, 0.35)); }
.node.on circle, .node.on path, .node.on ellipse { stroke: #b36b00; }
.node.dim { opacity: 0.45; }
.packet { fill: var(--orange); filter: drop-shadow(0 0 8px rgba(255, 153, 0, 0.95)); }
.asg-box, .vpc-box { fill: rgba(0, 29, 255, 0.03); stroke: rgba(0, 29, 255, 0.35); stroke-width: 2; stroke-dasharray: 8 6; }
.vpc-box { stroke: rgba(20, 184, 90, 0.5); fill: rgba(20, 184, 90, 0.04); }
.asg-label, .sub-t { font-size: 13px; font-weight: 900; fill: #34415c; }
.sub { stroke-width: 2; }
.sub.pub { fill: rgba(47, 124, 255, 0.07); stroke: rgba(47, 124, 255, 0.4); }
.sub.priv { fill: rgba(255, 153, 0, 0.07); stroke: rgba(255, 153, 0, 0.45); }
.gauge-bg { fill: #fff; stroke: var(--line); }
.gauge-fill { fill: url(#none); fill: var(--blue-2); transition: height 0.25s, y 0.25s, fill 0.3s; }
.gauge-t { font-size: 12px; font-weight: 700; fill: var(--muted); }
.sc-ec2 rect { fill: #fff; stroke: #c9d3ec; stroke-width: 2; transition: all 0.4s; }
.sc-ec2 .scr { fill: none; stroke: #c9d3ec; stroke-width: 2.4; }
.sc-ec2 text { font-size: 11px; font-weight: 700; fill: #9aa5bd; }
.sc-ec2.on { animation: pop 0.5s cubic-bezier(0.3, 1.6, 0.5, 1); }
.sc-ec2.on rect { fill: #fff6e6; stroke: var(--orange); stroke-width: 3; }
.sc-ec2.on .scr { stroke: #b36b00; }
.sc-ec2.on text { fill: #243049; }
.sc-ec2.min rect { stroke: rgba(0, 29, 255, 0.4); }
.bin rect { fill: #fff; stroke: #c9d3ec; stroke-width: 2; transition: all 0.4s; }
.bin.on rect { fill: #eef3ff; stroke: var(--blue); stroke-width: 3; }
.bin .bt { font-size: 15px; font-weight: 900; fill: #243049; }
.bin .bs { font-size: 12px; fill: var(--muted); font-weight: 700; }
.bs { font-size: 12px; fill: var(--muted); font-weight: 700; }
.arrow { stroke: rgba(0, 29, 255, 0.3); stroke-width: 3; fill: none; stroke-linecap: round; stroke-dasharray: 2 8; }
.cost-bg { fill: #e4eaf8; }
.cost-fill { fill: var(--orange); transform-origin: 56px 0; transition: transform 0.9s cubic-bezier(0.3, 0.8, 0.3, 1), fill 0.5s; transform-box: fill-box; transform-origin: left; }
.dayt { font-size: 15px; font-weight: 900; fill: var(--blue); }
.s3-file { transition: transform 1s cubic-bezier(0.5, 0, 0.2, 1); }
.s3-file rect { fill: var(--blue-2); }
.s3-file path { fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; }

/* quiz */
.decide-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.quiz { background: #fff; border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow); padding: 28px; position: relative; overflow: hidden; }
.quiz-top { display: flex; justify-content: space-between; font-size: 13px; font-weight: 900; color: var(--blue); }
.quiz-q { font-size: clamp(20px, 2.6vw, 26px); font-weight: 900; line-height: 1.5; margin: 14px 0 12px; min-height: 3em; }
.quiz-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 18px; }
.quiz-tags span { background: #eef3ff; color: var(--blue); border-radius: 999px; padding: 3px 12px; font-size: 12.5px; font-weight: 900; }
.quiz-opts { display: grid; gap: 10px; }
.opt { text-align: left; display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 10px 16px; border-radius: 16px; border: 2px solid var(--line); background: #fff; font-weight: 900; font-size: 16px; transition: all 0.2s; }
.opt small { margin-left: auto; font-weight: 500; color: var(--muted); font-size: 12px; }
.opt:hover:not(:disabled) { border-color: var(--blue); transform: translateX(4px); }
.opt.ok { border-color: var(--green); background: #e9faf0; animation: pop 0.45s; }
.opt.ng { border-color: var(--red); background: #fdecec; animation: shake 0.4s; }
.opt:disabled { cursor: default; }
.opt.faded { opacity: 0.45; }
.quiz-result { margin-top: 18px; padding: 16px 18px; border-radius: 18px; background: #f1f5ff; animation: rise 0.4s ease both; }
.quiz-result[hidden] { display: none; }
.quiz-verdict { font-weight: 900; font-size: 17px; margin-bottom: 4px; }
.quiz-verdict.ok { color: var(--green); }
.quiz-verdict.ng { color: var(--red); }
.quiz-result .button { margin-top: 12px; min-height: 44px; }
.quiz-bar { position: absolute; left: 0; bottom: 0; right: 0; height: 5px; background: #e8edf9; }
.quiz-bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--blue-2)); transition: width 0.5s; }

/* tour */
.tour { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 36px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 36px; padding: 36px; box-shadow: var(--shadow); }
.tour-phone { max-width: 270px; margin: 0 auto; }
.tour-phone .phone { transition: transform 0.4s; }
.tour-phone .phone img { transition: opacity 0.25s; }
.tour-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tour-tabs button { flex: 1; min-height: 48px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 900; }
.tour-tabs button[aria-selected="true"] { background: var(--blue); color: #fff; border-color: var(--blue); }
.chapter { font-size: 12.5px; font-weight: 900; letter-spacing: 0.14em; color: var(--blue); }
.tour-panel { animation: rise 0.45s ease both; }
.tour-panel[hidden] { display: none; }
.tour-panel h3 { font-size: clamp(22px, 3vw, 32px); line-height: 1.35; font-weight: 900; margin: 8px 0 14px; }
.tour-panel p { color: #435069; }
.callout { margin: 18px 0; padding: 14px 18px; background: #f1f5ff; border-left: 4px solid var(--blue); border-radius: 0 14px 14px 0; }
.callout b { display: block; color: var(--ink); }
.tag { display: inline-block; background: #e8efff; color: var(--blue); border-radius: 999px; padding: 4px 14px; font-weight: 900; font-size: 13px; }
.tour-next { display: flex; justify-content: space-between; align-items: center; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--muted); font-weight: 700; }
.tour-next button { width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line); background: #fff; font-size: 18px; font-weight: 900; }
.tour-next button:hover { border-color: var(--blue); color: var(--blue); }

/* memory */
.memory-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.curve-card { background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: 24px; box-shadow: var(--shadow); }
.curve-title { font-weight: 900; font-size: 14px; color: var(--blue); margin-bottom: 8px; }
.curve { width: 100%; height: auto; }
.axis { stroke: #b6c0d8; stroke-width: 2; }
.ax-t { font-size: 12px; fill: var(--muted); font-weight: 700; }
.c-line { stroke: var(--blue); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1000; stroke-dashoffset: 1000; }
.in .c-line { animation: draw 4.5s ease-out forwards; }
.rv circle { fill: var(--orange); opacity: 0; transform-box: fill-box; transform-origin: center; }
.rv text { font-size: 12px; font-weight: 900; fill: #6b4300; opacity: 0; }
.in #rv1 circle, .in #rv1 text { animation: show 0.5s 1.1s forwards; }
.in #rv2 circle, .in #rv2 text { animation: show 0.5s 2.3s forwards; }
.in #rv3 circle, .in #rv3 text { animation: show 0.5s 3.4s forwards; }
.states { display: grid; gap: 10px; margin-top: 24px; }
.states li { display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 12px 18px; }
.states b { min-width: 86px; text-align: center; border-radius: 999px; padding: 4px 12px; font-weight: 900; font-size: 14px; }
.states span { color: #435069; font-weight: 700; font-size: 14px; }
.s1 b { background: #fdecec; color: var(--red); }
.s2 b { background: #fff3dc; color: #a15c00; }
.s3 b { background: #e5f8ed; color: #0d8c43; }

/* features */
.feat-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; }
.feat { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 28px; box-shadow: 0 16px 44px rgba(0, 29, 255, 0.07); }
.feat.big { grid-row: span 2; background: linear-gradient(145deg, #001dff, #2f7cff); color: #fff; border: 0; }
.feat.big .eyebrow { color: #bdfcff; }
.feat h3 { font-size: 22px; line-height: 1.4; font-weight: 900; margin-bottom: 10px; }
.feat p { color: #435069; }
.feat.big p { color: rgba(255, 255, 255, 0.86); }
.ico { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: #eef3ff; color: var(--blue); font-weight: 900; margin-bottom: 14px; }
.exam { margin-top: 24px; background: rgba(255, 255, 255, 0.14); border-radius: 20px; padding: 6px 20px; }
.exam div { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.2); }
.exam span { font-weight: 900; font-size: 20px; }
.exam small { display: block; font-size: 11.5px; font-weight: 500; opacity: 0.8; }
.exam b { font-size: 38px; line-height: 1; }
.exam b i { font-style: normal; font-size: 13px; margin-left: 4px; font-weight: 700; }
.exam p { font-size: 12.5px; padding: 12px 0; }

/* pricing */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.price { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 28px; display: flex; flex-direction: column; gap: 10px; box-shadow: 0 16px 44px rgba(0, 29, 255, 0.07); }
.price.free { border: 2px solid var(--blue); box-shadow: var(--shadow); }
.plan { font-size: 12px; font-weight: 900; letter-spacing: 0.1em; color: var(--blue); }
.price h3 { font-size: 22px; font-weight: 900; }
.price-num { font-size: 54px; font-weight: 900; line-height: 1.1; }
.price-num i { font-style: normal; font-size: 24px; margin-right: 2px; }
.price-num small { font-size: 13px; color: var(--muted); font-weight: 700; margin-left: 8px; }
.price ul { display: grid; gap: 8px; margin: 8px 0 14px; flex: 1; }
.price li { padding-left: 24px; position: relative; font-size: 14.5px; color: #36425c; }
.price li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.price .button { width: 100%; }

/* faq */
.faq-grid { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 48px; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 20px; margin-bottom: 12px; overflow: hidden; }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 60px; padding: 14px 22px; font-weight: 900; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { font-style: normal; font-size: 22px; color: var(--blue); transition: transform 0.25s; }
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list details p { padding: 0 22px 20px; color: #435069; }

/* start */
.start { background: linear-gradient(135deg, #001dff, #2f7cff 60%, #00b7d6); color: #fff; padding: 88px 0; border-radius: 40px 40px 0 0; }
.start-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.start h2 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.22; font-weight: 900; margin-bottom: 16px; }
.start p { opacity: 0.92; }
.release { background: #fff; color: var(--ink); border-radius: 28px; padding: 28px; display: grid; gap: 6px; justify-items: start; box-shadow: 0 30px 70px rgba(0, 0, 40, 0.3); }
.release img { border-radius: 16px; margin-bottom: 6px; }
.release h3 { font-size: 22px; font-weight: 900; }
.release p { color: var(--muted); opacity: 1; }
.release .status { display: inline-flex; align-items: center; gap: 8px; background: #fff6e6; color: #8a5200; font-weight: 900; padding: 6px 14px; border-radius: 999px; margin-top: 8px; }
.release .status i { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); animation: blink 1.6s infinite; }
.release a { color: var(--blue); font-weight: 900; text-decoration: none; margin-top: 8px; }
.footer { background: #071025; color: #aab4cc; padding: 40px 0 48px; font-size: 13px; }
.footer-in { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; padding-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.footer .brand { color: #fff; margin-right: auto; }
.footer a { text-decoration: none; }
.footer-note { padding-top: 18px; display: grid; gap: 8px; line-height: 1.7; }

/* keyframes */
@keyframes drift { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(3deg); } 50% { transform: translateY(-14px) rotate(1.5deg); } }
@keyframes dash { to { stroke-dashoffset: -22; } }
@keyframes pop { 0% { transform: scale(0.6); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes show { to { opacity: 1; } }
@keyframes blink { 50% { opacity: 0.25; } }

/* responsive */
@media (max-width: 960px) {
  .header nav { display: none; }
  .header .button { margin-left: auto; }
  .hero-grid, .lab-panel, .decide-grid, .tour, .memory-grid, .feat-grid, .price-grid, .faq-grid, .start-inner { grid-template-columns: 1fr; }
  .hero-stage { min-height: 0; margin-top: 12px; }
  .hero-phone { display: none; }
  .chip { display: none; }
  .section { padding: 72px 0; }
  .feat.big { grid-row: auto; }
  .tour { padding: 22px; }
  .faq-grid { gap: 20px; }
}
@media (max-width: 520px) {
  .hero { padding-top: 32px; }
  .lab-card { padding: 12px; border-radius: 24px; }
  .quiz { padding: 20px; }
  .metrics div { flex: 1; min-width: 0; padding: 10px 12px; }
  .metrics dt { font-size: 26px; }
  .price-num { font-size: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
  .c-line { stroke-dashoffset: 0; }
  .rv circle, .rv text { opacity: 1; }
}

.decide .section-head h2 { font-size: clamp(28px, 3.6vw, 44px); }
.hero-grid > *, .lab-panel > *, .decide-grid > *, .tour > *, .memory-grid > *, .feat-grid > *, .price-grid > *, .faq-grid > *, .start-inner > * { min-width: 0; }
.chip.c3 { right: auto; left: 4%; bottom: 10%; }

/* official AWS icons: used unmodified; cards and group frames follow the AWS architecture-diagram style */
.node use, .h-node use { pointer-events: none; }
.h-node rect { fill: #fff; stroke: rgba(36, 47, 62, 0.16); stroke-width: 1.5; }
.node rect { stroke: rgba(36, 47, 62, 0.16); stroke-width: 1.5; }
.node.aws rect { stroke: rgba(36, 47, 62, 0.16); }
.node.on rect, .h-node.on rect { fill: #fff6e6; stroke: var(--orange); stroke-width: 3; }
.grp { stroke-width: 2; }
.grp.vpc { fill: rgba(140, 79, 255, 0.05); stroke: #8c4fff; }
.grp.pub { fill: rgba(122, 161, 22, 0.08); stroke: #7aa116; }
.grp.priv { fill: rgba(0, 164, 166, 0.07); stroke: #00a4a6; }
.grp.asg { fill: rgba(237, 113, 0, 0.04); stroke: #ed7100; stroke-dasharray: 8 6; }
.grp-t { font-size: 13px; font-weight: 700; fill: #232f3e; }
.sc-ec2 rect { fill: #fff; stroke: rgba(36, 47, 62, 0.16); stroke-width: 1.5; }
.sc-ec2 use { opacity: 0.22; transition: opacity 0.4s; }
.sc-ec2.on use { opacity: 1; }
.sc-ec2 text { fill: #8b96ac; }
.opt img { width: 30px; height: 30px; flex: none; }
.sc-ec2 { transform-box: fill-box; transform-origin: center; }



/* voice: same card language as en/ */
.notice { display: inline-block; margin-top: 16px; padding: 8px 16px; border-radius: 999px; background: #fff6e6; color: #8a5200; font-size: 13px; font-weight: 700; }
.review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.review-grid article { display: grid; align-content: start; gap: 14px; padding: 24px; background: rgba(255, 255, 255, 0.84); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 18px 48px rgba(7, 16, 37, 0.06); }
.review-grid p { margin: 0; color: var(--muted); font-weight: 650; line-height: 1.85; text-wrap: pretty; }
.review-head { display: flex; align-items: center; gap: 14px; }
.review-avatar { position: relative; flex: 0 0 auto; width: 54px; height: 54px; border-radius: 50%; box-shadow: 0 14px 28px rgba(0, 29, 255, 0.16); --c1: rgba(0, 29, 255, 0.95); --c2: rgba(47, 124, 255, 0.86); background: radial-gradient(circle at 50% 34%, white 0 10px, transparent 11px), linear-gradient(180deg, var(--c1), var(--c2)); }
.review-avatar::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 10px; height: 19px; background: #fff; border-radius: 18px 18px 8px 8px; }
.review-avatar.p-orange { --c1: #ffa51f; --c2: #ed7100; }
.review-avatar.p-purple { --c1: #9d6bff; --c2: #7a3df0; }
.review-avatar.p-teal { --c1: #1ec9c3; --c2: #00a4a6; }
.review-avatar.p-green { --c1: #20c35a; --c2: #18a64d; }
.review-avatar.p-red { --c1: #ff5d6c; --c2: #d92140; }
.review-head strong { display: block; color: var(--ink); font-size: 22px; line-height: 1; }
.review-head small { display: block; margin-top: 7px; color: var(--muted); font-size: 12px; font-weight: 900; }
.review-grid span { color: var(--ink); font-size: 13px; font-weight: 900; }
@media (max-width: 960px) { .review-grid { grid-template-columns: 1fr; } }
@media (min-width: 640px) and (max-width: 960px) { .review-grid { grid-template-columns: 1fr 1fr; } }

/* quiz: taller card, reserved result area, rule + basics cards */
.decide-grid { grid-template-columns: 0.85fr 1.15fr; align-items: start; }
.decide .section-head { position: sticky; top: 100px; }
.quiz { min-height: 780px; display: flex; flex-direction: column; padding: 30px; }
.quiz-top { margin-bottom: 4px; }
.quiz-auto { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; color: var(--muted); margin: 4px 0 0; }
.quiz-auto[hidden] { display: none; }
.quiz-auto i { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); animation: blink 1.4s infinite; }
.quiz-q { min-height: 4.6em; }
.opt .ico, .qr-card .ico { width: 34px; height: 34px; flex: none; display: block; border-radius: 6px; }
.opt.pre { border-color: var(--blue); transform: translateX(4px); box-shadow: 0 8px 20px rgba(0, 29, 255, 0.14); }
.quiz-result { margin-top: 18px; padding: 0; background: none; animation: none; flex: 1; display: flex; flex-direction: column; }
.qr-idle { flex: 1; display: flex; align-items: center; justify-content: center; margin: 0; text-align: center; padding: 20px; border: 2px dashed rgba(0, 29, 255, 0.18); border-radius: 18px; color: var(--muted); font-size: 14px; font-weight: 700; }
.qr-idle[hidden], .qr-body[hidden] { display: none; }
.qr-idle b { color: var(--blue); }
.qr-body { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 16px 18px; border-radius: 18px; background: #f1f5ff; }
.qr-body.fresh { animation: rise 0.45s ease both; }
.qr-why { color: #243049; font-size: 14.5px; }
.qr-cards { display: grid; gap: 10px; }
.qr-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; display: grid; gap: 4px; }
.qr-card .k { font-size: 11px; font-weight: 900; letter-spacing: 0.08em; color: var(--blue); }
.qr-card strong { font-size: 15px; font-weight: 900; line-height: 1.4; display: block; }
.qr-card .d { font-size: 12.5px; color: #435069; line-height: 1.6; display: block; }
.qr-card.basic .b-row { display: flex; gap: 12px; align-items: center; }
.qr-card.basic .b-row > span { flex: none; }
.qr-card.basic .ico { width: 40px; height: 40px; }
.qr-body .button { margin-top: auto; align-self: flex-start; min-height: 44px; }
@media (max-width: 960px) { .decide-grid { grid-template-columns: 1fr; } .decide .section-head { position: static; } .quiz { min-height: 0; } }
/* scaling: inactive EC2 slots stay recognisable */
.sc-ec2 use { opacity: 0.35; }
.sc-ec2 rect { stroke-dasharray: 5 5; }
.sc-ec2.on rect { stroke-dasharray: none; }

/* voice: avatars + 4 columns exactly like en/ */
.review-avatar.business-person { --c1: rgba(0, 29, 255, 0.95); --c2: rgba(47, 124, 255, 0.86); }
.review-avatar.student-person { --c1: #20c35a; --c2: #18a64d; }
.review-avatar.speaker-person { --c1: #ff3b7f; --c2: #d92166; }
.review-avatar.exam-person { --c1: #071025; --c2: #334155; }
.voice .section-head, .faq .section-head { max-width: 820px; margin-bottom: 34px; }
.voice .section-head h2 span, .faq .section-head h2 span { display: block; }
.voice .fine { margin-top: 22px; }
@media (max-width: 1100px) { .review-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .review-grid { grid-template-columns: 1fr; } }

/* faq: chat bubbles like en/ */
.faq-chat { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.faq-item { display: grid; gap: 12px; padding: 18px; border-radius: 20px; background: rgba(255, 255, 255, 0.75); border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(7, 16, 37, 0.05); align-content: start; }
.faq-q, .faq-a { display: flex; gap: 10px; align-items: flex-start; }
.faq-a { justify-content: flex-end; }
.faq-q .review-avatar { width: 40px; height: 40px; box-shadow: none; }
.faq-q .review-avatar::after { left: 10px; right: 10px; bottom: 7px; height: 14px; }
.faq-q .review-avatar { background: radial-gradient(circle at 50% 34%, white 0 7px, transparent 8px), linear-gradient(180deg, var(--c1), var(--c2)); }
.faq-a img { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 11px; box-shadow: 0 8px 20px rgba(0, 29, 255, 0.16); }
.faq-bubble { padding: 11px 15px; min-width: 0; }
.faq-bubble small { display: flex; align-items: center; gap: 7px; margin-bottom: 4px; font-size: 11px; font-weight: 800; color: var(--muted); }
.faq-bubble small b { padding: 2px 8px; border-radius: 999px; background: var(--green); color: #fff; font-size: 10px; font-weight: 900; letter-spacing: 0.03em; }
.faq-bubble p { margin: 0; font-size: 14px; font-weight: 700; line-height: 1.75; color: var(--ink); text-wrap: pretty; }
.faq-bubble.question { background: #eef1ff; border-radius: 4px 16px 16px 16px; }
.faq-bubble.question p { font-weight: 850; }
.faq-bubble.answer { background: #fff; border: 1px solid rgba(32, 195, 90, 0.32); border-radius: 16px 4px 16px 16px; box-shadow: 0 10px 26px rgba(32, 195, 90, 0.08); }
.faq-bubble.answer p { font-weight: 650; color: #243049; }
@media (max-width: 980px) { .faq-chat { grid-template-columns: 1fr; } }

/* clickable icons + trial panel */
.try-hint { display: inline-flex; align-items: center; gap: 10px; margin-top: 16px; padding: 6px 16px 6px 6px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 13px; font-weight: 700; color: #34415c; text-align: left; }
.try-hint b { background: var(--blue); color: #fff; padding: 2px 10px; border-radius: 999px; font-size: 11px; letter-spacing: 0.08em; }
.clickable { cursor: pointer; }
.clickable:hover > rect, .clickable:focus-visible > rect { stroke: var(--blue) !important; stroke-width: 3; }
.clickable:focus-visible { outline: none; }
.clickable:hover { filter: drop-shadow(0 6px 12px rgba(0, 29, 255, 0.22)); }
.qr-card { text-align: left; font: inherit; cursor: pointer; transition: border-color 0.2s, transform 0.2s; }
.qr-card:hover { border-color: var(--blue); transform: translateY(-2px); }
.qr-card .k { display: flex; justify-content: space-between; gap: 8px; }
.qr-card .k em { font-style: normal; color: var(--blue); letter-spacing: 0; }

.trial { border: 0; padding: 0; width: min(760px, calc(100% - 24px)); max-height: min(88vh, 860px); border-radius: 28px; background: #fff; color: var(--ink); box-shadow: 0 40px 120px rgba(7, 16, 37, 0.4); overflow: hidden; }
.trial[open] { display: flex; animation: rise 0.35s ease both; }
.trial::backdrop { background: rgba(7, 16, 37, 0.55); backdrop-filter: blur(4px); }
.tr-inner { display: flex; flex-direction: column; width: 100%; min-height: 0; max-height: min(88vh, 860px); }
.tr-head { display: flex; gap: 16px; align-items: flex-start; padding: 24px 24px 12px; }
.tr-ico { flex: none; width: 64px; height: 64px; border-radius: 14px; overflow: hidden; box-shadow: 0 10px 24px rgba(7, 16, 37, 0.14); }
.tr-ico svg { display: block; width: 100%; height: 100%; }
.tr-title { flex: 1; min-width: 0; }
.tr-cat { font-size: 11.5px; font-weight: 900; letter-spacing: 0.08em; color: var(--blue); }
.tr-title h3 { font-size: 24px; line-height: 1.3; font-weight: 900; }
.tr-desc { font-size: 13.5px; color: var(--muted); font-weight: 700; }
.tr-close { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: #fff; font-size: 22px; line-height: 1; }
.tr-close:hover { border-color: var(--blue); color: var(--blue); }
.tr-tabs { display: flex; gap: 8px; padding: 0 24px 12px; }
.tr-tabs button { flex: 1; min-height: 46px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 900; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.tr-tabs button i { font-style: normal; font-size: 11px; padding: 1px 8px; border-radius: 999px; background: #eef3ff; color: var(--blue); }
.tr-tabs button[aria-selected="true"] { background: var(--blue); color: #fff; border-color: var(--blue); }
.tr-tabs button[aria-selected="true"] i { background: rgba(255, 255, 255, 0.2); color: #fff; }
.tr-body { flex: 1; min-height: 0; overflow: auto; padding: 4px 24px 20px; overscroll-behavior: contain; }
.tr-panel { display: grid; gap: 12px; }
.tr-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.tr-chip { min-height: 36px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 12.5px; font-weight: 700; }
.tr-chip[aria-pressed="true"] { background: #eef3ff; border-color: var(--blue); color: var(--blue); }
.tr-h { font-size: 18px; font-weight: 900; line-height: 1.5; }
.tr-point { background: #f6f8ff; border-radius: 16px; padding: 14px 16px; }
.tr-pt { font-size: 12.5px; font-weight: 900; color: var(--blue); margin-bottom: 6px; }
.tr-point ul, .tr-when ul { display: grid; gap: 6px; }
.tr-point li, .tr-when li { position: relative; padding-left: 16px; font-size: 14px; line-height: 1.75; color: #243049; }
.tr-point li::before, .tr-when li::before { content: ""; position: absolute; left: 3px; top: 0.78em; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-2); }
.tr-cmp { display: grid; gap: 8px; }
.tr-cmp-row { display: grid; gap: 2px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 14px; }
.tr-cmp-row strong { font-size: 14px; }
.tr-cmp-row span { font-size: 13px; color: #243049; }
.tr-cmp-row em { font-style: normal; font-size: 12.5px; color: #8a5200; }
.tr-take { padding: 12px 16px; background: #fff6e6; border-left: 4px solid var(--orange); border-radius: 0 14px 14px 0; font-size: 14px; font-weight: 700; color: #5c3a00; }
.tr-take b, .tr-trap b { display: block; font-size: 11.5px; letter-spacing: 0.08em; margin-bottom: 2px; }
.tr-src { font-size: 13px; font-weight: 700; color: var(--blue); }
.tr-rule { border: 1px solid var(--line); border-radius: 18px; padding: 16px; display: grid; gap: 8px; }
.tr-rule.is-focus { border: 2px solid var(--blue); background: #f6f8ff; }
.tr-sum { font-size: 14px; color: #243049; font-weight: 700; }
.tr-k { display: inline-block; font-size: 11px; font-weight: 900; padding: 1px 10px; border-radius: 999px; margin-bottom: 4px; }
.tr-k.ok { background: #e5f8ed; color: #0d8c43; }
.tr-k.ng { background: #fdecec; color: var(--red); }
.tr-trap { font-size: 13px; color: #5c3a00; background: #fff6e6; border-radius: 12px; padding: 8px 12px; }
.tr-empty { padding: 28px 24px; color: var(--muted); font-weight: 700; text-align: center; }
.tr-foot { display: flex; gap: 14px; align-items: center; justify-content: space-between; padding: 14px 24px; border-top: 1px solid var(--line); background: #f9faff; }
.tr-foot p { font-size: 12.5px; color: var(--muted); font-weight: 700; line-height: 1.6; }
.tr-foot .button { flex: none; }
@media (max-width: 640px) {
  .trial { width: 100%; max-height: 92vh; margin: auto 0 0; border-radius: 24px 24px 0 0; }
  .tr-inner { max-height: 92vh; }
  .tr-head, .tr-tabs, .tr-body, .tr-foot { padding-left: 16px; padding-right: 16px; }
  .tr-foot { flex-direction: column; align-items: stretch; text-align: center; }
}
@media (prefers-reduced-motion: reduce) { .trial[open] { animation: none; } }

/* legal pages */
.legal-page { width: min(100% - 32px, 760px); margin: 0 auto; padding: 64px 0 88px; }
.legal-page article { display: grid; gap: 16px; }
.legal-page h1 { font-size: clamp(30px, 5vw, 42px); line-height: 1.25; font-weight: 900; }
.legal-page h2 { margin-top: 24px; font-size: 20px; line-height: 1.4; font-weight: 900; padding-left: 14px; border-left: 4px solid var(--blue); }
.legal-page p, .legal-page li { color: #243049; line-height: 1.95; }
.legal-page ul { display: grid; gap: 6px; padding-left: 1.4em; list-style: disc; }
.legal-date { color: var(--muted) !important; font-size: 13px; font-weight: 700; }
.legal-note { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--muted) !important; }