/* Site 2 — Light teal split, editorial accent gold */
:root {
  --cream: #e8f6f3;
  --teal: #006d5b;
  --forest: #0b3d2e;
  --gold: #f4b942;
  --paper: #fbfdfc;
  --muted: #3d5a52;
  --line: #c5ddd6;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--forest);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.topbar {
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--teal);
}

.logo svg {
  width: 30px;
  height: 30px;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  font-size: 14px;
}

.menu a {
  color: var(--muted);
  font-weight: 600;
}

.menu a:hover {
  color: var(--teal);
}

/* Hero 50/50 */
.hero {
  background: linear-gradient(180deg, var(--cream) 0%, #f7fcfa 100%);
  padding: 56px 0 48px;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1.25;
  margin-bottom: 18px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 12px;
  font-size: 16.5px;
}

.btn {
  display: inline-block;
  margin-top: 14px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: 6px;
}

.btn:hover {
  background: var(--forest);
}

.preview-stack {
  display: grid;
  gap: 12px;
}

.preview {
  background: #fff;
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: 12px 14px 0 var(--gold);
  border: 1px solid var(--line);
}

.preview:nth-child(2) {
  transform: translateX(18px);
  box-shadow: 12px 14px 0 var(--teal);
}

.preview:nth-child(3) {
  transform: translateX(36px);
  box-shadow: 12px 14px 0 #9ad8cc;
}

.preview b {
  display: block;
  margin-bottom: 4px;
}

.preview span {
  color: var(--muted);
  font-size: 14px;
}

/* Compare two-col */
.compare-sec {
  padding: 70px 0 40px;
}

h2 {
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.35;
  margin-bottom: 12px;
}

.intro {
  max-width: 640px;
  color: var(--muted);
  margin-bottom: 26px;
}

.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 2px solid var(--forest);
  border-radius: 4px;
  overflow: hidden;
}

.duo article {
  padding: 28px 26px;
}

.duo article:first-child {
  background: var(--forest);
  color: #e8f6f3;
}

.duo article:last-child {
  background: #fff;
}

.duo h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.duo ul {
  padding-left: 18px;
}

.duo li + li {
  margin-top: 8px;
}

.limit-box {
  margin-top: 20px;
  padding: 18px 20px;
  background: #fff8e6;
  border-left: 6px solid var(--gold);
}

.limit-box h3 {
  margin-bottom: 8px;
}

.limit-box ul {
  padding-left: 18px;
  color: var(--muted);
}

/* Features 2x3 accent */
.feat-sec {
  padding: 56px 0;
  background: #fff;
}

.grid-23 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.accent-card {
  background: var(--cream);
  border-left: 5px solid var(--teal);
  padding: 20px 20px 18px 18px;
}

.accent-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.accent-card p {
  color: var(--muted);
  font-size: 14.5px;
}

/* Chat / files / security */
.panel {
  padding: 64px 0;
}

.panel.alt {
  background: var(--cream);
}

.row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.plain {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
}

.plain h3 {
  margin-bottom: 8px;
}

.plain p,
.plain li {
  color: var(--muted);
  font-size: 14.5px;
}

.plain ul {
  padding-left: 18px;
}

/* Timeline steps */
.timeline {
  position: relative;
  margin-left: 18px;
  padding-left: 28px;
  border-left: 3px solid var(--gold);
}

.t-item {
  position: relative;
  padding-bottom: 28px;
}

.t-item::before {
  content: "";
  position: absolute;
  left: -39px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--teal);
  border: 3px solid var(--gold);
}

.t-item h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.t-item p {
  color: var(--muted);
}

/* Browser */
.browser-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  background: var(--forest);
  color: #fff;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 2px;
}

.browser-copy {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin-top: 22px;
}

/* FAQ details */
.faq-sec {
  padding: 64px 0 80px;
  background: #fff;
}

details {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

details p {
  margin-top: 8px;
  color: var(--muted);
}

.foot {
  background: var(--forest);
  color: #cfe6df;
  padding: 32px 0;
  font-size: 14px;
}

.foot p + p {
  margin-top: 10px;
}

.mid-cta {
  margin-top: 18px;
}

@media (max-width: 880px) {
  .menu {
    display: none;
  }

  .hero-split,
  .duo,
  .grid-23,
  .row-3,
  .browser-copy {
    grid-template-columns: 1fr;
  }

  .preview:nth-child(2),
  .preview:nth-child(3) {
    transform: none;
  }
}

.accent-card svg { width: 28px; height: 28px; margin-bottom: 8px; color: #006d5b; display: block; }

.news-sec { padding: 56px 0; background: #f4fbf8; }
.news-stack { list-style: none; display: grid; gap: 14px; }
.news-stack li { border-left: 4px solid #f4b942; background: #fff; padding: 16px 18px; }
.news-stack time { color: #006d5b; font-size: 12px; font-weight: 700; letter-spacing: 0.04em; }
.news-stack h3 { margin: 6px 0 8px; font-size: 18px; font-family: Georgia, serif; }