:root {
  --tool-ink: #1d1d1f;
  --tool-muted: #6e6e73;
  --tool-subtle: #86868b;
  --tool-paper: #f5f5f7;
  --tool-white: #fff;
  --tool-line: #d2d2d7;
  --tool-green: #16845f;
  --tool-green-dark: #0d6548;
  --tool-green-soft: #edf8f3;
  --tool-blue-soft: #f0f6f8;
  --tool-amber: #9b651a;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--tool-ink); background: var(--tool-white); font-size: 15px; }
button, a { font: inherit; }
a { color: inherit; }
.tool-app { min-height: 100vh; overflow: hidden; }
.tool-header { display: flex; min-height: 68px; align-items: center; justify-content: space-between; gap: 24px; padding: 0 max(24px, calc((100% - 1180px) / 2)); border-bottom: 1px solid var(--tool-line); background: rgba(255, 255, 255, .96); }
.tool-brand { display: flex; align-items: center; gap: 11px; color: var(--tool-ink); text-decoration: none; }
.tool-brand-mark { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 8px; color: var(--tool-white); background: var(--tool-green); font-size: 11px; font-weight: 800; }
.tool-brand strong, .tool-brand small { display: block; }
.tool-brand strong { font-size: 14px; line-height: 1.3; }
.tool-brand small { margin-top: 2px; color: var(--tool-muted); font-size: 11px; }
.tool-nav { display: flex; align-items: stretch; gap: 26px; margin-left: auto; }
.tool-nav a { display: grid; min-height: 68px; align-items: center; color: var(--tool-muted); font-size: 13px; text-decoration: none; border-bottom: 2px solid transparent; }
.tool-nav a:hover, .tool-nav a.is-current { color: var(--tool-ink); border-bottom-color: var(--tool-green); }
.tool-account { display: flex; align-items: center; gap: 8px; color: var(--tool-muted); font-size: 12px; }
.account-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--tool-green); }
.text-button { padding: 0 0 0 10px; border: 0; color: var(--tool-green-dark); background: transparent; cursor: pointer; }
main { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.tool-hero { display: grid; min-height: 460px; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); align-items: center; gap: 80px; padding: 72px 0 78px; }
.eyebrow { margin: 0 0 13px; color: var(--tool-green); font-size: 11px; font-weight: 800; letter-spacing: .1em; }
h1, h2, h3, p { margin: 0; }
h1 { max-width: 650px; font-size: clamp(38px, 5vw, 58px); font-weight: 700; line-height: 1.12; }
.hero-lead { max-width: 650px; margin-top: 22px; color: var(--tool-muted); font-size: 17px; line-height: 1.8; }
.hero-actions, .detail-actions, .support-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.hero-actions { margin-top: 30px; }
.button { display: inline-flex; min-height: 40px; align-items: center; justify-content: center; gap: 9px; padding: 0 15px; border: 1px solid transparent; border-radius: 6px; font-size: 13px; font-weight: 650; line-height: 1; text-decoration: none; cursor: pointer; transition: color .16s ease, background-color .16s ease, border-color .16s ease, transform .16s ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { color: var(--tool-white); background: var(--tool-green); }
.button-primary:hover { color: var(--tool-white); background: var(--tool-green-dark); }
.button-secondary { color: var(--tool-ink); background: var(--tool-white); border-color: var(--tool-line); }
.button-secondary:hover { border-color: #a8a8ad; background: var(--tool-paper); }
.hero-status { min-height: 250px; padding: 26px; border: 1px solid #d8e7df; border-radius: 8px; background: var(--tool-green-soft); }
.status-label { color: var(--tool-green-dark); font-size: 12px; font-weight: 700; }
.hero-status strong { display: block; margin-top: 25px; font-size: 68px; font-weight: 700; line-height: .95; }
.hero-status strong small { color: var(--tool-subtle); font-size: 23px; font-weight: 500; }
.hero-status p { margin-top: 10px; color: var(--tool-muted); font-size: 13px; }
.status-rule { height: 4px; margin-top: 36px; overflow: hidden; border-radius: 4px; background: #d5e8df; }
.status-rule span { display: block; width: 50%; height: 100%; background: var(--tool-green); }
.status-foot { display: flex; justify-content: space-between; gap: 14px; margin-top: 11px; color: var(--tool-subtle); font-size: 11px; }
.tool-section, .access-section { padding: 76px 0; border-top: 1px solid var(--tool-line); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
h2 { font-size: 32px; line-height: 1.2; }
.section-heading > p { max-width: 380px; color: var(--tool-muted); font-size: 13px; line-height: 1.65; text-align: right; }
.tool-workspace { display: grid; grid-template-columns: minmax(300px, .82fr) minmax(0, 1.18fr); border-top: 1px solid var(--tool-line); border-bottom: 1px solid var(--tool-line); }
.tool-list { padding: 10px 0; border-right: 1px solid var(--tool-line); }
.tool-list-item { display: grid; width: 100%; grid-template-columns: 38px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 16px 18px; border: 0; border-left: 3px solid transparent; color: var(--tool-ink); background: transparent; text-align: left; cursor: pointer; }
.tool-list-item:hover { background: #fafafa; }
.tool-list-item.is-selected { border-left-color: var(--tool-green); background: var(--tool-green-soft); }
.tool-icon { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 7px; color: var(--tool-green-dark); background: #e1f0e9; font-size: 13px; font-weight: 800; }
.tool-list-copy, .tool-list-copy strong, .tool-list-copy small { display: block; min-width: 0; }
.tool-list-copy strong { overflow: hidden; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.tool-list-copy small { margin-top: 4px; color: var(--tool-muted); font-size: 11px; }
.tool-state, .detail-state, .plan-state { font-size: 11px; white-space: nowrap; }
.state-live { color: var(--tool-green-dark); }
.state-client { color: #56737c; }
.state-plan { color: var(--tool-amber); }
.tool-detail { min-height: 300px; padding: 34px 38px; }
.detail-topline, .plan-topline { display: flex; justify-content: space-between; gap: 12px; }
.detail-index { color: var(--tool-green); font-size: 12px; font-weight: 800; }
.tool-detail h3 { margin-top: 48px; font-size: 29px; line-height: 1.25; }
.tool-detail > p { max-width: 610px; margin-top: 14px; color: var(--tool-muted); font-size: 14px; line-height: 1.75; }
.detail-points { display: flex; flex-wrap: wrap; gap: 9px 22px; margin-top: 24px; color: var(--tool-ink); font-size: 12px; }
.detail-points span::before { content: ""; display: inline-block; width: 6px; height: 6px; margin: 0 7px 1px 0; border-radius: 50%; background: var(--tool-green); }
.detail-actions { margin-top: 30px; }
.detail-note { color: var(--tool-muted); font-size: 11px; }
.access-section { background: var(--tool-paper); }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.plan-item { display: flex; min-height: 300px; flex-direction: column; padding: 22px; border: 1px solid var(--tool-line); border-radius: 8px; background: var(--tool-white); }
.plan-item.is-current { border-color: #acd5c2; box-shadow: inset 0 2px 0 var(--tool-green); }
.plan-topline { color: var(--tool-green); font-size: 11px; font-weight: 800; }
.plan-state-muted { color: var(--tool-subtle); font-weight: 500; }
.plan-item h3 { margin-top: 34px; font-size: 22px; }
.plan-item p { min-height: 44px; margin-top: 11px; color: var(--tool-muted); font-size: 13px; line-height: 1.6; }
.plan-item ul { display: grid; gap: 9px; margin: 22px 0 25px; padding: 0; color: var(--tool-ink); font-size: 12px; list-style: none; }
.plan-item li::before { content: "✓"; margin-right: 8px; color: var(--tool-green); font-weight: 800; }
.plan-button { width: 100%; margin-top: auto; }
.plan-item.is-current .plan-button { color: var(--tool-green-dark); border-color: #acd5c2; background: var(--tool-green-soft); }
.access-note { margin-top: 15px; padding: 13px 15px; border-left: 3px solid var(--tool-green); color: var(--tool-muted); background: var(--tool-white); font-size: 12px; line-height: 1.5; }
.support-section { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 76px 0; }
.support-section h2 { font-size: 27px; }
.support-section p:last-child { max-width: 510px; margin-top: 12px; color: var(--tool-muted); font-size: 13px; line-height: 1.7; }
.tool-footer { display: flex; justify-content: space-between; gap: 20px; width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 22px 0 34px; border-top: 1px solid var(--tool-line); color: var(--tool-subtle); font-size: 11px; }
.tool-toast { position: fixed; right: 22px; bottom: 22px; z-index: 10; max-width: min(360px, calc(100% - 44px)); padding: 11px 14px; border: 1px solid #acd5c2; border-radius: 6px; color: var(--tool-green-dark); background: var(--tool-green-soft); opacity: 0; transform: translateY(8px); pointer-events: none; transition: opacity .18s ease, transform .18s ease; }
.tool-toast.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 820px) { .tool-header { padding: 0 18px; } .tool-nav { gap: 15px; } .tool-account span:not(.account-dot), .tool-account .text-button { display: none; } main { width: min(100% - 28px, 620px); } .tool-hero { grid-template-columns: 1fr; gap: 34px; padding: 55px 0 62px; } .hero-status { min-height: 210px; } .tool-workspace { grid-template-columns: 1fr; } .tool-list { border-right: 0; border-bottom: 1px solid var(--tool-line); } .tool-detail { min-height: 270px; padding: 28px 22px; } .tool-detail h3 { margin-top: 30px; } .plan-grid { grid-template-columns: 1fr; } .plan-item { min-height: 0; } .section-heading, .support-section { align-items: flex-start; flex-direction: column; } .section-heading > p { text-align: left; } .support-actions { width: 100%; } }
@media (max-width: 480px) { .tool-header { min-height: 60px; } .tool-nav { display: none; } main, .tool-footer { width: calc(100% - 28px); } h1 { font-size: 38px; } .hero-lead { font-size: 15px; } .tool-section, .access-section, .support-section { padding: 55px 0; } h2 { font-size: 28px; } .tool-list-item { grid-template-columns: 34px minmax(0, 1fr); padding-right: 12px; } .tool-state { display: none; } .tool-icon { width: 30px; height: 30px; } .tool-footer { flex-direction: column; gap: 7px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .button { transition: none; } }