:root {
  color-scheme: light;
  --paper: #fff8ed;
  --ink: #1c2633;
  --muted: #667080;
  --coral: #ff6f61;
  --pink: #ff5d93;
  --cyan: #35cbd4;
  --yellow: #ffd95a;
  --lime: #b9db62;
  --line: rgba(28,38,51,.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; color: var(--ink); background-color: var(--paper); background-image: linear-gradient(rgba(40,61,70,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(40,61,70,.045) 1px, transparent 1px); background-size: 24px 24px; font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif; }
a { color: inherit; text-decoration: none; }
.site-header { width: min(1180px, 92vw); min-height: 82px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 11px; width: max-content; }
.brand > span:last-child strong, .brand > span:last-child small { display: block; }
.brand > span:last-child strong { font-size: 1.15rem; letter-spacing: -.02em; }
.brand > span:last-child small { color: #8a756a; font-size: .46rem; font-weight: 700; letter-spacing: .16em; }
.brand-grid { width: 39px; height: 39px; display: grid; grid-template-columns: 1fr 1fr; gap: 3px; padding: 4px; border: 2px solid var(--ink); transform: rotate(-3deg); }
.brand-grid i { background: var(--coral); }.brand-grid i:nth-child(2) { background: var(--cyan); }.brand-grid i:nth-child(3) { background: var(--yellow); }.brand-grid i:nth-child(4) { background: var(--pink); }
nav { display: flex; gap: 31px; font-size: .72rem; font-weight: 700; }
nav a { position: relative; padding: 9px 0; }
nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 3px; background: var(--coral); transition: right .2s; }
nav a:hover::after { right: 0; }
.build-label { justify-self: end; padding: 7px 11px; border: 1px solid var(--ink); background: var(--yellow); font-size: .59rem; font-weight: 900; letter-spacing: .08em; transform: rotate(1.5deg); box-shadow: 3px 3px 0 var(--ink); }
main { width: min(1180px, 92vw); margin: 0 auto; }
.hero { min-height: 650px; display: grid; grid-template-columns: 1.06fr .94fr; gap: clamp(35px, 6vw, 82px); align-items: center; padding: 70px 0 84px; }
.eyebrow, .section-title p, .guide-intro > p, .about > p { margin: 0 0 12px; color: #d84e62; font-size: .61rem; font-weight: 900; letter-spacing: .18em; }
.hero h1 { margin: 0; font-size: clamp(2.7rem, 6vw, 5rem); line-height: 1.08; letter-spacing: -.055em; }
.hero h1 em { position: relative; color: inherit; font-style: normal; z-index: 1; }
.hero h1 em::after { content: ""; position: absolute; z-index: -1; left: -2%; right: -2%; bottom: 7%; height: 22%; background: var(--yellow); transform: rotate(-1deg); }
.lead { max-width: 620px; margin: 26px 0; color: var(--muted); font-size: .91rem; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.primary-button { display: inline-flex; align-items: center; gap: 26px; padding: 13px 18px; color: #fff; border: 2px solid var(--ink); background: var(--coral); box-shadow: 5px 5px 0 var(--ink); font-size: .77rem; font-weight: 900; transition: transform .18s, box-shadow .18s; }
.primary-button:hover { transform: translate(3px,3px); box-shadow: 2px 2px 0 var(--ink); }
.primary-button span { font-size: 1.2rem; }
.text-button { padding-bottom: 4px; border-bottom: 2px solid var(--ink); font-size: .73rem; font-weight: 800; }
.service-line { display: flex; align-items: center; gap: 9px; margin-top: 35px; color: #7b807f; font-size: .62rem; }
.service-line b { margin-left: 7px; color: var(--ink); }
.service-dot { width: 7px; height: 7px; border-radius: 50%; background: #56bb73; box-shadow: 0 0 0 4px rgba(86,187,115,.13); }.service-dot.offline { background: var(--coral); box-shadow: 0 0 0 4px rgba(255,111,97,.13); }
.hero-visual { position: relative; min-height: 535px; }
.memo-board { position: absolute; inset: 18px 28px 32px 0; min-height: 485px; padding: 24px; border: 3px solid var(--ink); background: #fffdf7; box-shadow: 13px 13px 0 rgba(28,38,51,.14); transform: rotate(1.2deg); }
.memo-board::before { content: ""; position: absolute; left: 10%; right: 10%; top: -12px; height: 24px; background: rgba(217,199,161,.65); transform: rotate(-2deg); }
.board-top, .board-footer { display: flex; justify-content: space-between; align-items: center; font-family: Consolas, monospace; font-size: .6rem; font-weight: 800; letter-spacing: .08em; }
.panel-grid { width: min(315px, 72%); aspect-ratio: 1; margin: 36px auto 23px 2%; display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; padding: 9px; border: 2px solid var(--ink); background: #e9e8e1; }
.panel-grid i { position: relative; border: 1px solid rgba(28,38,51,.28); background: #fff; box-shadow: inset 0 -5px 0 rgba(28,38,51,.07); }
.panel-grid i.cyan { background: var(--cyan); }.panel-grid i.pink { background: var(--pink); }.panel-grid i.yellow { background: var(--yellow); }
.panel-grid i[class*="beat"]::after { content: ""; position: absolute; inset: 14%; border: 3px solid #fff; border-radius: 50%; animation: beat 1.8s ease-out infinite; }
.beat-two::after { animation-delay: -.6s !important; }.beat-three::after { animation-delay: -1.2s !important; }
.hand-note { position: absolute; padding: 7px 10px; border: 1px solid var(--ink); background: var(--yellow); font-family: "KaiTi", cursive; font-size: .68rem; box-shadow: 3px 3px 0 rgba(28,38,51,.2); }
.note-one { right: -24px; top: 30%; transform: rotate(5deg); }.note-two { left: -26px; bottom: 19%; background: #bde8ea; transform: rotate(-6deg); }
.board-footer strong { padding: 5px 8px; color: #fff; background: var(--pink); transform: rotate(-3deg); }
.site-mascot { position: absolute; z-index: 4; right: -28px; bottom: -20px; width: min(255px, 49%); height: auto; filter: drop-shadow(8px 11px 0 rgba(28,38,51,.15)); }
.mascot-bubble { position: absolute; z-index: 5; right: -18px; top: -3px; max-width: 170px; padding: 10px 13px; border: 2px solid var(--ink); border-radius: 50%; background: #fff; font-family: "KaiTi", cursive; font-size: .7rem; font-weight: 700; text-align: center; transform: rotate(3deg); box-shadow: 4px 4px 0 var(--yellow); }
.mascot-bubble::after { content: ""; position: absolute; right: 25px; bottom: -12px; width: 16px; height: 16px; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); background: #fff; transform: rotate(35deg); }
.library { padding: 72px 0; border-top: 3px solid var(--ink); }
.section-title { display: flex; justify-content: space-between; align-items: end; margin-bottom: 27px; }
.section-title p { margin-bottom: 5px; }.section-title h2, .guide h2, .about h2 { margin: 0; font-size: clamp(1.8rem,4vw,2.65rem); letter-spacing: -.045em; }
.section-title > span { color: var(--muted); font-size: .68rem; }
.shelf { display: grid; grid-template-columns: repeat(3,1fr); gap: 19px; }
.chart-card { position: relative; min-height: 270px; padding: 25px; overflow: hidden; border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); transition: transform .2s, box-shadow .2s; }
.chart-card:hover { transform: translate(3px,3px); box-shadow: 3px 3px 0 var(--ink); }
.chart-card.coral { background: #ffb3a9; }.chart-card.blue { background: #aee6e9; }.chart-card.lime { background: #d7e99b; }
.card-number { position: absolute; right: 18px; top: 13px; color: rgba(28,38,51,.18); font-size: 3.4rem; font-weight: 900; }
.chart-card > p { margin: 0 0 8px; font-size: .54rem; font-weight: 900; letter-spacing: .15em; }.chart-card h3 { margin: 0 0 24px; font-size: 1.35rem; }
.chart-card small { position: absolute; left: 25px; right: 25px; bottom: 22px; font-size: .65rem; font-weight: 700; }
.chart-lines { display: grid; gap: 10px; transform: rotate(-3deg); }.chart-lines i { height: 10px; background: var(--ink); }.chart-lines i:nth-child(2) { width: 76%; }.chart-lines i:nth-child(3) { width: 48%; }
.mini-panels { width: 135px; display: grid; grid-template-columns: repeat(2,1fr); gap: 5px; }.mini-panels i { aspect-ratio: 1; border: 2px solid var(--ink); background: rgba(255,255,255,.6); }.mini-panels i:nth-child(2) { background: var(--yellow); }
.sticker { display: grid; place-items: center; width: 100px; height: 80px; margin: 12px auto; color: #fff; background: var(--pink); font-size: .75rem; font-weight: 900; letter-spacing: .08em; text-align: center; transform: rotate(7deg); box-shadow: 4px 4px 0 var(--ink); }
.construction-note { margin-top: 26px; display: flex; gap: 18px; padding: 16px 18px; border-left: 5px solid var(--yellow); background: rgba(255,255,255,.64); font-size: .69rem; }.construction-note span { color: var(--muted); }
.guide { display: grid; grid-template-columns: .8fr 1.2fr; gap: 75px; padding: 70px 55px; color: #fff; background: var(--ink); }
.guide-intro > p { color: var(--yellow); }.guide-intro > span { display: block; margin-top: 17px; color: rgba(255,255,255,.58); font-size: .72rem; line-height: 1.8; }
.guide ol { margin: 0; padding: 0; list-style: none; counter-reset: guide; }.guide li { position: relative; padding: 17px 0 17px 53px; border-top: 1px solid rgba(255,255,255,.18); counter-increment: guide; }.guide li::before { content: "0" counter(guide); position: absolute; left: 0; top: 17px; color: var(--yellow); font-family: Consolas, monospace; font-weight: 900; }.guide li b,.guide li span { display: block; }.guide li b { font-size: .8rem; }.guide li span { margin-top: 4px; color: rgba(255,255,255,.56); font-size: .66rem; }
.about { margin: 72px auto; max-width: 760px; text-align: center; }.about > span { display: block; margin: 17px auto 0; color: var(--muted); font-size: .76rem; line-height: 1.85; }
footer { width: min(1180px,92vw); margin: 0 auto; padding: 25px 0 34px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); font-size: .64rem; }footer span { color: var(--muted); }
@keyframes beat { from { opacity: 1; transform: scale(.35); } to { opacity: 0; transform: scale(1.15); } }
@media (max-width: 820px) { .site-header { grid-template-columns: 1fr auto; }.site-header nav { display: none; }.hero { grid-template-columns: 1fr; padding-top: 55px; }.hero-visual { width: min(560px,100%); margin: 0 auto; }.shelf { grid-template-columns: 1fr; }.guide { grid-template-columns: 1fr; gap: 35px; padding: 45px 30px; } }
@media (max-width: 540px) { .brand > span:last-child small { display: none; }.hero { min-height: auto; padding-bottom: 65px; }.hero h1 { font-size: 2.55rem; }.hero-visual { min-height: 460px; }.memo-board { inset: 18px 10px 25px 0; padding: 17px; min-height: 410px; }.panel-grid { width: 72%; gap: 5px; padding: 6px; }.site-mascot { right: -10px; bottom: 0; width: 48%; }.mascot-bubble { right: 0; top: 0; font-size: .61rem; }.note-one { right: -5px; top: 35%; }.note-two { left: -8px; }.section-title { display: block; }.section-title > span { display: block; margin-top: 8px; }.construction-note { display: grid; }.guide { margin-left: -4vw; margin-right: -4vw; }.about { margin: 55px auto; } }
@media (prefers-reduced-motion: reduce) { *,*::before,*::after { animation: none !important; scroll-behavior: auto !important; transition-duration: .01ms !important; } }