:root { --ink: #17201b; --muted: #69736b; --soft: #f0f2ed; --line: #d6dbd4; --paper: #f8f8f5; --accent: #18634a; --amber: #81662e; font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif; color: var(--ink); background: var(--paper); }
* { box-sizing: border-box; }
body { min-width: 320px; margin: 0; line-height: 1.5; }
main, footer { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
p, h1, h2, h3 { margin-top: 0; }
.hero { padding: 30px 0 78px; }
.wordmark { margin-bottom: clamp(94px, 13vw, 152px); font-size: .78rem; font-weight: 800; letter-spacing: .065em; }
.wordmark span { color: #94a097; padding: 0 7px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: clamp(38px, 9vw, 150px); align-items: end; }
.eyebrow, .panel-label { margin-bottom: 14px; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .1em; }
h1 { margin-bottom: 0; font-size: clamp(3rem, 6.1vw, 5.65rem); line-height: .98; letter-spacing: -.085em; }
.hero-side { max-width: 365px; padding-bottom: 4px; }
.hero-side > p:first-child { margin-bottom: 23px; color: #445047; font-size: 1.03rem; line-height: 1.75; }
.arrow-link { display: inline-flex; gap: 10px; align-items: baseline; color: var(--accent); font-weight: 800; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 3px; }
.arrow-link span, .closing span { font-size: 1.15em; }
.quiet { margin: 19px 0 0; color: var(--muted); font-size: .82rem; }
.app-demo { border: 1px solid #cfd5ce; background: #fff; box-shadow: 0 22px 50px rgba(29, 44, 35, .08); }
.app-header { display: flex; justify-content: space-between; align-items: center; min-height: 50px; padding: 0 20px; border-bottom: 1px solid var(--line); color: #4e5b52; font-size: .8rem; font-weight: 700; }
.app-header p { margin: 0; color: #849087; font-size: .75rem; font-weight: 600; }
.app-dot { display: inline-block; width: 8px; height: 8px; margin-right: 8px; background: var(--accent); border-radius: 50%; }
.app-grid { display: grid; grid-template-columns: 1fr .82fr 1.18fr; min-height: 420px; }
.app-grid > section { padding: 27px; }
.source-panel, .draft-panel { border-left: 1px solid var(--line); }
.inquiry-panel h2 { margin-bottom: 29px; font-size: 1.48rem; line-height: 1.2; letter-spacing: -.045em; }
label { display: block; margin-bottom: 9px; font-size: .84rem; font-weight: 750; }
textarea { width: 100%; min-height: 140px; padding: 13px; border: 1px solid #bec8be; border-radius: 0; background: #fcfdfb; color: var(--ink); font: .87rem/1.55 inherit; resize: vertical; }
textarea:focus { outline: 2px solid #b6d5c4; outline-offset: 1px; }
button { display: flex; justify-content: space-between; align-items: center; width: 100%; margin-top: 12px; padding: 13px 14px; border: 0; border-radius: 0; background: var(--ink); color: #fff; font: inherit; font-size: .87rem; font-weight: 750; cursor: pointer; }
button:hover { background: var(--accent); }
.input-hint { margin: 19px 0 0; color: var(--muted); font-size: .74rem; line-height: 1.55; }
.source-intro { margin-bottom: 17px; color: var(--muted); font-size: .86rem; }
.source-panel ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.source-panel li { display: grid; grid-template-columns: 25px 1fr; gap: 8px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.source-panel li > span { color: #87928a; font-size: .72rem; }
.source-panel strong { display: block; margin-bottom: 2px; font-size: .8rem; }
.source-panel li p { margin-bottom: 4px; color: #465148; font-size: .82rem; line-height: 1.45; }
.source-panel small { color: #87928a; font-size: .68rem; }
.draft-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.draft-title span { color: var(--amber); font-size: .7rem; font-weight: 800; }
#draft-result { min-height: 234px; padding: 17px; border: 1px solid var(--line); background: #fbfcfa; }
.empty-draft { margin: 0; color: #87928a; font-size: .88rem; line-height: 1.65; }
.status { display: inline-block; margin-bottom: 12px; color: var(--amber); font-size: .72rem; font-weight: 800; }
pre { overflow: auto; margin: 0; color: #2e3b32; white-space: pre-wrap; font: .76rem/1.58 ui-monospace, SFMono-Regular, Menlo, monospace; }
.warning { margin: 0; color: #794c3a; font-size: .86rem; }
.draft-note { margin: 14px 0 0; color: var(--muted); font-size: .74rem; line-height: 1.55; }
.principles { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(42px, 10vw, 155px); padding: 104px 0; border-bottom: 1px solid var(--line); }
.principles h2 { margin-bottom: 0; font-size: clamp(2rem, 3.5vw, 3.2rem); line-height: 1.13; letter-spacing: -.065em; }
.principle-list { align-self: end; border-top: 1px solid var(--line); }
.principle-list p { display: flex; gap: 28px; margin: 0; padding: 15px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.principle-list span { color: var(--accent); font-size: .75rem; }
.closing { display: flex; justify-content: space-between; align-items: center; padding: 38px 0; border-bottom: 1px solid var(--line); }
.closing p { margin: 0; font-size: clamp(1.25rem, 2vw, 1.7rem); font-weight: 750; letter-spacing: -.035em; }
.closing a { color: var(--accent); font-weight: 800; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.boundary { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 22px 0 70px; color: var(--muted); font-size: .79rem; line-height: 1.55; }
.boundary p { margin: 0; }
.boundary strong { color: var(--ink); }
footer { padding: 20px 0 35px; border-top: 1px solid var(--line); color: #859087; font-size: .74rem; }
@media (max-width: 820px) { main, footer { width: min(100% - 32px, 1120px); } .hero { padding-bottom: 54px; } .wordmark { margin-bottom: 78px; } .hero-grid, .principles { grid-template-columns: 1fr; } .hero-grid { gap: 26px; } h1 { font-size: clamp(2.85rem, 13vw, 4.8rem); } .app-grid { grid-template-columns: 1fr; } .source-panel, .draft-panel { border-top: 1px solid var(--line); border-left: 0; } #draft-result { min-height: 170px; } .principles { gap: 40px; padding: 72px 0; } .closing { align-items: flex-start; flex-direction: column; gap: 17px; } .boundary { grid-template-columns: 1fr; gap: 11px; padding-bottom: 48px; } }