.hero { padding:6px 32px 0; overflow-x:clip; max-width:100%; }
.board {
  position:relative;
  isolation:isolate;
  overflow:hidden;
  max-width:var(--content-width);
  margin:0 auto;
  border-radius:var(--r-board);
  padding:56px 48px 56px 64px;
  display:grid;
  grid-template-columns:minmax(0,46fr) minmax(0,52fr);
  column-gap:2%;
  align-items:center;
  background:radial-gradient(58% 70% at 80% 32%,var(--lime-mist),var(--white-0) 70%),linear-gradient(135deg,var(--board-from),var(--board-to));
  box-shadow:inset 0 1px 0 var(--white-70),inset 0 0 0 1px var(--moss-08),0 24px 48px var(--moss-08);
}
.board::after {
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:radial-gradient(130% 56% at 50% 114%,var(--moss-16),var(--white-0) 62%);
}
.copy { position:relative; z-index:2; min-width:0; }
.eyebrow {
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:32px;
  padding:4px 14px 4px 12px;
  border-radius:var(--r-pill);
  background:var(--white-70);
  box-shadow:inset 0 0 0 1px var(--white-90),0 4px 14px var(--moss-08);
  font-size:13px;
  font-weight:var(--weight-semibold);
  color:var(--accent-dark);
  letter-spacing:.02em;
}
.eyebrow-dot { width:8px; height:8px; border-radius:var(--r-circle); background:var(--accent-dark); box-shadow:0 0 0 4px var(--moss-12); flex:none; }
.hero-title { margin:24px 0 20px; font-family:var(--font-display); font-weight:var(--weight-display); font-size:var(--fs-h1); line-height:1.08; letter-spacing:var(--tracking-display); color:var(--text); }
:lang(zh) .hero-title { letter-spacing:var(--tracking-display); }
.t-line { display:block; }
.kw {
  color:var(--accent-dark);
  padding:0 .04em;
  background-image:linear-gradient(180deg,var(--white-0) 56%,var(--lime-half) 56%,var(--lime-half) 92%,var(--white-0) 92%);
  -webkit-box-decoration-break:clone;
  box-decoration-break:clone;
}
.kw-moss { color:var(--accent-dark); }
.hero-sub { margin:0; max-width:33em; font-size:var(--fs-sub); line-height:1.65; color:var(--text-muted); }
.hero-sub strong { color:var(--text); font-weight:var(--weight-bold); }
.signup-note { margin:28px 0 12px; display:flex; align-items:center; gap:8px; font-size:14px; line-height:1.4; color:var(--text-muted); }
.signup-note strong { color:var(--text); font-weight:var(--weight-bold); }
.tick { width:18px; height:18px; border-radius:var(--r-circle); flex:none; display:grid; place-items:center; background:var(--accent-dark); color:var(--bg-panel); }
.tick svg { width:12px; height:12px; display:block; }
.signup-row { display:flex; align-items:center; gap:12px; }
.signup-unit { display:flex; align-items:center; gap:10px; min-width:0; margin:0; }
.signup-input {
  width:248px;
  height:56px;
  padding:0 18px;
  border:1px solid var(--border);
  border-radius:var(--r-field);
  background:var(--bg-panel);
  color:var(--text);
  font:inherit;
  font-size:15px;
  box-shadow:var(--edge-hl),0 8px 20px var(--moss-08);
  min-width:0;
}
.signup-input::placeholder { color:var(--text-muted); opacity:.8; }
.signup-input:focus { outline:2px solid var(--accent-dark); outline-offset:1px; }
.trust {
  list-style:none;
  margin:24px 0 0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(4,auto);
  justify-content:start;
  gap:8px 22px;
  font-size:13.5px;
  font-weight:var(--weight-medium);
  line-height:1.4;
  color:var(--text);
}
.trust li { display:flex; align-items:center; gap:6px; white-space:nowrap; }
.trust svg { width:15px; height:15px; flex:none; color:var(--accent-dark); display:block; }
.facts {
  margin-top:28px;
  padding:14px 18px;
  border-radius:var(--r-card);
  background:var(--white-55);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:inset 0 0 0 1px var(--white-90),0 12px 32px var(--moss-08);
}
.facts-row { display:grid; grid-template-columns:64px minmax(0,1fr); align-items:center; column-gap:8px; }
.facts-row + .facts-row { margin-top:12px; padding-top:12px; border-top:1px dashed var(--moss-16); }
.facts-label { font-size:12px; font-weight:var(--weight-semibold); color:var(--text-muted); letter-spacing:.02em; }
.facts-list { list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; align-items:center; gap:8px 18px; }
.facts-list li { display:inline-flex; align-items:center; gap:6px; font-size:13px; font-weight:var(--weight-medium); line-height:1.3; white-space:nowrap; }
.pf-ic { width:16px; height:16px; flex:none; color:var(--text); display:block; }
.flag { width:22px; height:15px; flex:none; display:block; overflow:hidden; border-radius:var(--r-square); }
.fr { fill:var(--flag-red); }
.fw { fill:var(--flag-white); }
.fb { fill:var(--flag-blue); }
.fedge { fill:none; stroke:var(--ink-10); stroke-width:1; }
.stage { position:relative; z-index:1; margin:0; height:596px; perspective:1800px; perspective-origin:30% 40%; min-width:0; }
.float-chip {
  position:absolute;
  top:0;
  left:0;
  z-index:6;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px 0 8px;
  border-radius:var(--r-pill);
  background:var(--bg-panel);
  color:var(--text);
  font-size:12.5px;
  font-weight:var(--weight-semibold);
  white-space:nowrap;
  box-shadow:var(--shadow-float),var(--edge-hl),0 0 0 1px var(--ink-06);
}
.float-chip-ic { width:20px; height:20px; border-radius:var(--r-circle); display:grid; place-items:center; background:var(--moss-12); color:var(--accent-dark); }
.float-chip-ic svg { width:14px; height:14px; display:block; }
.client-wrap { position:absolute; top:28px; left:24px; right:32px; height:418px; transform:rotateY(-6deg); transform-origin:50% 50%; }
.client-slab { position:absolute; inset:0; border-radius:var(--r-window); transform:translate(10px,12px); background:linear-gradient(160deg,var(--bg-panel-2),var(--border)); box-shadow:var(--shadow-window); }
.client { position:relative; height:100%; overflow:hidden; display:flex; flex-direction:column; border-radius:var(--r-window); background:var(--bg-panel); box-shadow:var(--edge-hl),0 0 0 1px var(--ink-06),0 2px 4px var(--ink-06); }
.client::before { content:""; position:absolute; top:0; left:18px; right:18px; height:1px; z-index:4; background:linear-gradient(90deg,var(--white-0),var(--white-90),var(--white-0)); }
.client::after { content:""; position:absolute; inset:0; z-index:3; pointer-events:none; border-radius:inherit; background:linear-gradient(118deg,var(--white-55) 0%,var(--white-0) 32%); }
.client-chrome { flex:none; height:42px; padding:0 16px; display:flex; align-items:center; gap:14px; background:linear-gradient(180deg,var(--bg-panel),var(--bg)); border-bottom:1px solid var(--border); }
.dots { display:flex; gap:7px; }
.dot { width:10px; height:10px; border-radius:var(--r-circle); display:block; box-shadow:inset 0 0 0 1px var(--ink-06); flex:none; }
.dot-r { background:var(--error); }
.dot-y { background:var(--warn); }
.dot-g { background:var(--success); }
.chrome-title { font-size:12.5px; font-weight:var(--weight-semibold); color:var(--text-muted); letter-spacing:.01em; }
.chrome-menu { margin-left:auto; width:16px; height:16px; color:var(--text-muted); display:block; }
.client-body { flex:1; min-height:0; display:grid; grid-template-columns:212px minmax(0,1fr); }
.routes { margin:12px 0 12px 12px; padding:12px 10px; border-radius:var(--r-field); background:var(--bg-panel-2); box-shadow:inset 0 2px 6px var(--ink-06),inset 0 0 0 1px var(--border); display:flex; flex-direction:column; min-width:0; }
.routes-head { margin:0 0 8px; padding:0 6px; font-family:var(--font-mono); font-size:11px; letter-spacing:.04em; color:var(--text-muted); }
.route-list { list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:4px; }
.route { display:grid; grid-template-columns:18px minmax(0,1fr) auto; align-items:center; gap:8px; height:40px; padding:0 8px; border-radius:var(--r-sm); font-size:13px; font-weight:var(--weight-semibold); color:var(--text); }
.route .flag { width:18px; height:12px; }
.route.is-active { background:var(--bg-panel); box-shadow:0 0 0 1.5px var(--accent-dark),0 6px 14px var(--moss-12); }
.tchip { display:inline-flex; align-items:center; height:20px; padding:0 7px; border-radius:var(--r-pill); font-size:10.5px; font-weight:var(--weight-semibold); white-space:nowrap; line-height:1; }
.t-iepl { background:var(--moss-12); color:var(--accent-dark); }
.t-relay { background:var(--bg-panel); color:var(--accent-dark); box-shadow:inset 0 0 0 1px var(--moss-24); }
.t-direct { background:var(--ink-06); color:var(--text-muted); }
.routes-legend { margin-top:auto; padding:10px 6px 0; border-top:1px solid var(--border); }
.routes-legend p { margin:0 0 6px; font-size:11px; color:var(--text-muted); }
.legend-chips { display:flex; gap:6px; }
.detail { padding:16px 18px; display:flex; flex-direction:column; gap:10px; min-width:0; }
.detail-label { margin:0; font-family:var(--font-mono); font-size:11px; line-height:14px; letter-spacing:.04em; color:var(--text-muted); }
.detail-name { margin:0; display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-size:22px; line-height:28px; font-weight:var(--weight-display); letter-spacing:-.02em; white-space:nowrap; }
.detail-name .flag { width:26px; height:18px; }
.conn-card { display:flex; align-items:center; justify-content:space-between; padding:12px 14px; border-radius:var(--r-field); background:linear-gradient(135deg,var(--moss-08),var(--white-0) 70%),var(--bg-panel); box-shadow:inset 0 0 0 1px var(--border),0 6px 16px var(--moss-08); }
.conn-meta { display:flex; flex-direction:column; gap:2px; }
.conn-meta small { font-size:11px; color:var(--text-muted); }
.conn-state { display:flex; align-items:center; gap:8px; font-size:16px; font-weight:var(--weight-display); color:var(--accent-dark); }
.conn-state::before { content:""; width:8px; height:8px; border-radius:var(--r-circle); background:var(--success); box-shadow:0 0 0 3px var(--moss-12); flex:none; }
.switch { position:relative; flex:none; width:44px; height:26px; border-radius:var(--r-pill); background:linear-gradient(180deg,var(--moss-mid),var(--accent-dark)); box-shadow:inset 0 1px 2px var(--ink-10); }
.switch::after { content:""; position:absolute; top:3px; right:3px; width:20px; height:20px; border-radius:var(--r-circle); background:var(--bg-panel); box-shadow:0 1px 3px var(--ink-10); }
.switch-sm { width:32px; height:18px; }
.switch-sm::after { top:2px; right:2px; width:14px; height:14px; }
.detail-pair { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.mini-card { display:flex; align-items:center; justify-content:space-between; gap:8px; min-height:42px; padding:0 12px; border-radius:var(--r-mini); background:var(--bg-panel); box-shadow:inset 0 0 0 1px var(--border); font-size:12.5px; font-weight:var(--weight-semibold); white-space:nowrap; }
.mini-card.secure { justify-content:flex-start; background:var(--moss-08); box-shadow:inset 0 0 0 1px var(--moss-16); color:var(--accent-dark); }
.mini-card.secure svg { width:16px; height:16px; flex:none; display:block; }
.plan-card { padding:11px 14px; border-radius:var(--r-field); background:linear-gradient(180deg,var(--bg-panel-2),var(--bg)); box-shadow:var(--edge-hl),inset 0 0 0 1px var(--border); }
.plan-top { display:flex; align-items:center; justify-content:space-between; }
.plan-top small { font-size:11px; color:var(--text-muted); }
.plan-price { margin:2px 0 0; font-size:16px; font-weight:var(--weight-display); letter-spacing:-.01em; }
.plan-note { margin:0; font-size:12px; line-height:1.4; color:var(--text-muted); }
.device-row { display:flex; align-items:center; justify-content:space-between; gap:12px; font-size:12.5px; font-weight:var(--weight-semibold); }
.device-icons { display:flex; gap:8px; color:var(--text-muted); }
.device-icons svg { width:14px; height:14px; display:block; }
.client-status { flex:none; height:30px; padding:0 16px; display:flex; align-items:center; gap:8px; border-top:1px solid var(--border); background:var(--bg); font-family:var(--font-mono); font-size:11px; color:var(--text-muted); white-space:nowrap; }
.client-status::before { content:""; width:6px; height:6px; border-radius:var(--r-circle); background:var(--accent-dark); flex:none; }
.bubble { position:absolute; z-index:5; padding:12px 14px 13px; border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--shadow-float),var(--edge-hl),0 0 0 1px var(--ink-06); }
.bubble-a { top:416px; right:8px; width:252px; }
.bubble-b { top:522px; right:-24px; width:264px; z-index:6; box-shadow:var(--shadow-float-near),var(--edge-hl),0 0 0 1px var(--ink-06); }
.bubble-head { display:flex; align-items:center; gap:8px; margin-bottom:6px; font-size:12px; font-weight:var(--weight-semibold); color:var(--text-muted); }
.bubble-badge { width:22px; height:22px; border-radius:var(--r-circle); flex:none; display:grid; place-items:center; background:var(--accent-dark); color:var(--bg-panel); }
.bubble-badge svg { width:14px; height:14px; display:block; }
.bubble-avatar { width:22px; height:22px; border-radius:var(--r-circle); flex:none; display:grid; place-items:center; background:var(--bg-panel-2); color:var(--accent-dark); font-size:11px; font-weight:var(--weight-display); box-shadow:inset 0 0 0 1px var(--border); }
.bubble p { margin:0; font-size:14px; line-height:1.55; color:var(--text); }
.peek { margin-top:0; padding:40px 32px 96px; background-image:radial-gradient(var(--moss-dot) 1px,var(--white-0) 1.4px); background-size:20px 20px; }
.peek-inner { max-width:var(--content-width); margin:0 auto; text-align:center; }
.peek-eyebrow { display:inline-flex; align-items:center; gap:8px; margin:0 0 16px; font-size:13px; font-weight:var(--weight-semibold); color:var(--accent-dark); letter-spacing:.04em; }
.peek-eyebrow::before { content:""; width:8px; height:8px; border-radius:var(--r-circle); background:var(--accent-dark); flex:none; }
.peek-title { margin:0; font-family:var(--font-display); font-weight:var(--weight-display); font-size:40px; line-height:1.2; letter-spacing:-.02em; }
.peek-text { margin:12px auto 0; max-width:40em; color:var(--text-muted); }

.tabs { min-width:0; }
[role="tablist"] { display:flex; flex-wrap:wrap; gap:8px; width:fit-content; max-width:100%; padding:6px; border-radius:var(--r-pill); background:var(--bg-panel-2); box-shadow:inset 0 1px 4px var(--ink-06),var(--edge-hl); margin-bottom:24px; }
[role="tab"] { display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:10px 20px; border:0; border-radius:var(--r-pill); color:var(--text-muted); background:var(--white-0); font-weight:var(--weight-semibold); }
[role="tab"][aria-selected="true"] { color:var(--accent-dark); background:var(--bg-panel); box-shadow:0 4px 12px var(--moss-10); }
[role="tabpanel"] { min-width:0; }
.toc-tabs { position:sticky; top:var(--toc-offset); z-index:30; display:flex; gap:8px; max-width:100%; overflow-x:auto; padding:10px; margin:0 0 32px; border:1px solid var(--border); border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--shadow-float); overscroll-behavior-x:contain; }
.toc-tabs a { display:inline-flex; align-items:center; min-height:44px; padding:10px 16px; border-radius:var(--r-pill); white-space:nowrap; flex:none; text-decoration:none; color:var(--text); }
.toc-tabs a.is-current { color:var(--accent-dark); background:var(--bg-panel-2); box-shadow:inset 0 0 0 1px var(--moss-24); font-weight:var(--weight-bold); }
.toc-tabs.toc-static { position:static; }
body:has(.toc-tabs) section[id],body:has(.toc-tabs) h2[id],body:has(.toc-tabs) h3[id] { scroll-margin-top:var(--chapter-offset); }
.faq-item { border:1px solid var(--border); border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--edge-hl),0 4px 16px var(--moss-08); margin-bottom:12px; }
.faq-item summary { position:relative; list-style:none; cursor:pointer; min-height:56px; padding:18px 54px 18px 24px; font-weight:var(--weight-semibold); }
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after { content:"+"; position:absolute; right:24px; top:17px; color:var(--accent-dark); font-family:var(--font-mono); font-size:20px; }
.faq-item[open] summary::after { content:"−"; }
.faq-answer { padding:0 24px 20px; color:var(--text-muted); }
.faq-answer p:last-child { margin-bottom:0; }
.badge,.tag { display:inline-flex; align-items:center; gap:6px; max-width:100%; padding:5px 12px; border-radius:var(--r-pill); background:var(--moss-08); color:var(--accent-dark); font-size:12px; font-weight:var(--weight-semibold); overflow-wrap:anywhere; white-space:normal; }
.badge-dot::before { content:""; width:6px; height:6px; border-radius:var(--r-circle); background:var(--accent-dark); flex:none; }
.badge-best { background:var(--accent-dark); color:var(--bg-panel); }
.price-card { position:relative; padding:28px; border:1px solid var(--border); border-radius:var(--r-container); background:var(--bg-panel); box-shadow:var(--shadow-float),var(--edge-hl); display:flex; flex-direction:column; gap:16px; min-width:0; }
.price-card.is-selected { background:var(--accent); border-color:var(--accent-dark); }
.price-card .badge-best { align-self:flex-start; }
.price-card h3 { margin:0; }
.price-amount { font-family:var(--font-display); font-size:44px; line-height:1.2; font-weight:var(--weight-display); font-variant-numeric:tabular-nums; letter-spacing:var(--tracking-display); }
.price-amount small { font-size:16px; font-weight:var(--weight-medium); }
.price-card p { margin:0; }
.price-facts { margin:0; padding-left:20px; font-size:14px; }
.price-facts li + li { margin-top:8px; }
.price-card .btn-secondary { margin-top:auto; width:100%; }
.table-scroll { overflow-x:auto; max-width:100%; width:100%; -webkit-overflow-scrolling:touch; overscroll-behavior-x:contain; border:1px solid var(--border); border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--edge-hl),0 8px 24px var(--moss-08); }
.data-table,.route-table,.compare-table { width:100%; min-width:640px; border-collapse:collapse; font-size:14px; text-align:left; }
.data-table th,.data-table td,.route-table th,.route-table td,.compare-table th,.compare-table td { padding:16px 20px; border-bottom:1px solid var(--border); word-break:keep-all; color:var(--text); }
.table-scroll th,.data-table th,.route-table th,.compare-table th { white-space:nowrap; background:var(--bg-panel-2); font-weight:var(--weight-bold); color:var(--text); }
.route-table tbody + tbody .region-row th { background:var(--moss-08); color:var(--accent-dark); }
.region-row th { color:var(--accent-dark); }
.data-table tr:last-child td,.route-table tbody:last-child tr:last-child td,.compare-table tr:last-child td { border-bottom:0; }
.table-region { display:flex; align-items:center; gap:8px; }
.prose > .data-table { display:block; overflow-x:auto; -webkit-overflow-scrolling:touch; max-width:100%; min-width:0; }
.platform-card { display:flex; flex-direction:column; align-items:flex-start; gap:16px; padding:24px; background:var(--bg-panel); border:1px solid var(--border); border-radius:var(--r-card); box-shadow:var(--shadow-float),var(--edge-hl); min-width:0; }
.platform-card .pf-ic { width:32px; height:32px; color:var(--accent-dark); }
.platform-card h3 { font-size:20px; margin:0; }
.platform-card p { margin:0; color:var(--text-muted); font-size:14px; }
.platform-card .btn-secondary { margin-top:auto; padding-inline:16px; font-size:14px; }
.article-card { display:flex; flex-direction:column; gap:16px; padding:28px; border:1px solid var(--border); border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--shadow-float),var(--edge-hl); min-width:0; }
.article-card h3 { margin:0; font-size:22px; }
.article-card h3 a { color:var(--text); text-decoration:none; }
.article-card h3 a:hover { color:var(--accent-dark); }
.article-card p { margin:0; color:var(--text-muted); }
.article-meta { display:flex; flex-wrap:wrap; align-items:center; gap:12px; font-size:13px; color:var(--text-muted); }
.article-card > a { margin-top:auto; display:inline-flex; align-items:center; min-height:28px; }
.blog-split { display:grid; grid-template-columns:minmax(0,3fr) minmax(0,1fr); gap:32px; align-items:start; }
.blog-meta { padding:24px; border:1px solid var(--border); border-radius:var(--r-card); background:var(--bg-panel); box-shadow:var(--edge-hl),var(--shadow-float); }
.blog-meta > * + * { border-top:1px solid var(--border); margin-top:16px; padding-top:16px; }
.callout { margin:24px 0; padding:24px; border-left:4px solid var(--accent-dark); border-radius:var(--r-card); background:var(--bg-panel-2); box-shadow:var(--edge-hl); color:var(--text); }
.callout p:last-child { margin-bottom:0; }
.promo-block { display:flex; align-items:center; justify-content:space-between; gap:28px; padding:32px; margin-top:40px; background:var(--bg-panel-2); border:1px solid var(--border); border-radius:var(--r-container); box-shadow:var(--shadow-float),var(--edge-hl); min-width:0; }
.promo-copy { min-width:0; }
.promo-copy strong { font-family:var(--font-display); font-weight:var(--weight-display); font-size:24px; }
.promo-copy p { margin:8px 0 0; color:var(--text-muted); }
.promo-block .btn,.promo-block .btn-primary,.promo-block .btn-secondary { flex-shrink:0; white-space:nowrap; }
.float-cta { position:fixed; right:24px; bottom:calc(24px + env(safe-area-inset-bottom,0px)); z-index:50; display:inline-flex; align-items:center; gap:10px; height:52px; padding:0 22px 0 10px; border-radius:var(--r-pill); background:var(--ink); color:var(--ink-text); font-size:15px; font-weight:var(--weight-bold); text-decoration:none; box-shadow:0 14px 32px var(--moss-24),0 2px 6px var(--ink-10); }
.float-cta-ic { width:32px; height:32px; border-radius:var(--r-circle); display:grid; place-items:center; background:var(--lime-soft); color:var(--ink); flex:none; }
.float-cta-ic svg { width:16px; height:16px; display:block; }
.float-cta:hover { background:var(--accent-dark); }
body:has(.float-cta)::after { content:""; display:block; height:calc(88px + env(safe-area-inset-bottom,0px)); }
.feature-timeline { position:relative; padding-top:32px; overflow-x:clip; max-width:100%; }
.feature-timeline::before { content:""; position:absolute; top:0; bottom:32px; left:50%; width:1px; background:var(--border); pointer-events:none; }
.feature-step { position:relative; margin-bottom:48px; }
.feature-node { position:relative; display:grid; place-items:center; width:56px; height:56px; margin:0 auto 32px; border-radius:var(--r-circle); background:var(--accent-dark); color:var(--bg-panel); box-shadow:0 8px 24px var(--moss-16),var(--edge-hl); }
.feature-node svg { width:24px; height:24px; }
.feature-panel { position:relative; padding:48px; border-radius:var(--r-container); background:var(--bg-panel-2); display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:48px; align-items:center; box-shadow:var(--edge-hl); }
.feature-step:nth-child(even) .feature-copy { order:2; }
.feature-step:nth-child(even) .feature-cards { order:1; }
.feature-copy h3 { font-size:28px; }
.feature-copy p:last-child { margin-bottom:0; }
.feature-cards { display:grid; gap:16px; padding:16px; min-width:0; }
.feature-cards .card:nth-child(even) { margin-left:24px; }
.feature-cards .card p:last-child { margin-bottom:0; }
.dot-surface { background-image:radial-gradient(var(--moss-dot) 1px,var(--white-0) 1.4px); background-size:20px 20px; }
.ticker { overflow:hidden; max-width:100%; width:100%; padding-block:16px; border-block:1px solid var(--border); background:var(--bg-panel-2); }
.ticker-track { display:flex; width:max-content; }
.ticker-set { display:flex; flex:none; align-items:center; gap:40px; padding-right:40px; }
.ticker-set span { font-size:14px; color:var(--accent-dark); white-space:nowrap; font-weight:var(--weight-semibold); }
.preview-section { padding-top:48px; padding-bottom:48px; }
.preview-section > h2 { margin-bottom:28px; }
.swatch-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px; }
.swatch { padding:16px; border-radius:var(--r-card); background:var(--bg-panel); border:1px solid var(--border); min-width:0; }
.swatch-color { height:64px; margin-bottom:12px; border-radius:var(--r-sm); border:1px solid var(--border); }
.swatch code { font-size:13px; }
.swatch-bg { background:var(--bg); }
.swatch-panel { background:var(--bg-panel); }
.swatch-panel2 { background:var(--bg-panel-2); }
.swatch-border { background:var(--border); }
.swatch-accent { background:var(--accent); }
.swatch-dark { background:var(--accent-dark); }
.swatch-text { background:var(--text); }
.swatch-muted { background:var(--text-muted); }
.swatch-success { background:var(--success); }
.swatch-warn { background:var(--warn); }
.swatch-error { background:var(--error); }
.swatch-ink { background:var(--ink); }
.swatch-soft { background:var(--lime-soft); }
.swatch-board { background:linear-gradient(135deg,var(--board-from),var(--board-to)); }
.type-sample { padding:24px; border-bottom:1px solid var(--border); }
.type-display { font-family:var(--font-display); font-size:var(--fs-h1); line-height:1.1; font-weight:var(--weight-display); letter-spacing:var(--tracking-display); }
.type-heading { font-family:var(--font-display); font-size:var(--fs-h2); font-weight:var(--weight-display); line-height:1.2; }
.type-sub { font-size:var(--fs-sub); color:var(--text-muted); }
@media (max-width:1320px) { .trust { grid-template-columns:repeat(2,auto); } }
@media (max-width:1180px) { .signup-input { width:210px; } }
@media (max-width:1080px) {
  .board { grid-template-columns:minmax(0,1fr); padding:48px; gap:40px; }
  .copy { max-width:720px; }
  .stage { width:100%; max-width:700px; margin-inline:auto; }
  .signup-input { width:248px; }
  .client-wrap { right:32px; }
  .trust { grid-template-columns:repeat(4,auto); }
}
@media (max-width:768px) {
  .hero { padding:6px var(--gutter) 0; }
  .board { padding:32px 24px; gap:32px; }
  .hero-title { font-size:var(--fs-h1); line-height:1.12; overflow-wrap:anywhere; }
  .hero-title .no-break { white-space:normal; }
  :lang(zh) .hero-title { letter-spacing:var(--tracking-cjk); }
  .hero-sub { font-size:16px; }
  .signup-note { margin-top:20px; }
  .signup-row { flex-wrap:wrap; }
  .signup-unit { width:100%; }
  .signup-input { width:auto; flex:1; }
  .signup-unit .btn-primary { padding-inline:20px; }
  .trust { grid-template-columns:repeat(2,minmax(0,auto)); gap:10px 16px; }
  .stage { height:auto; perspective:none; display:flex; flex-direction:column; gap:16px; padding-inline:12px; }
  .float-chip { position:static; align-self:flex-start; max-width:100%; }
  .client-wrap { position:relative; top:auto; left:auto; right:auto; height:auto; transform:none; margin-bottom:12px; width:100%; }
  .client { height:auto; overflow:visible; }
  .client::after { border-radius:var(--r-window); }
  .client-chrome { border-radius:var(--r-window) var(--r-window) var(--r-square) var(--r-square); }
  .client-body { grid-template-columns:180px minmax(0,1fr); }
  .detail { padding:16px 12px; }
  .detail-name { font-size:18px; white-space:normal; }
  .detail-pair { grid-template-columns:1fr; }
  .bubble { position:relative; top:auto; right:auto; width:auto; max-width:100%; }
  .bubble-a { align-self:flex-start; margin-right:20px; }
  .bubble-b { align-self:flex-end; margin-left:20px; }
  .client-status { height:auto; min-height:30px; padding-block:8px; white-space:normal; border-radius:var(--r-square) var(--r-square) var(--r-window) var(--r-window); }
  .peek { padding:32px var(--gutter) 56px; }
  .peek-title { font-size:32px; }
  .swatch-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .feature-panel { grid-template-columns:1fr; gap:24px; padding:28px; }
  .feature-step:nth-child(even) .feature-copy,.feature-step:nth-child(even) .feature-cards { order:initial; }
  .feature-cards { padding:0; }
  .feature-copy h3 { font-size:24px; }
  .promo-block { flex-direction:column; align-items:flex-start; padding:24px; }
  .blog-split { display:flex; flex-direction:column; }
  .blog-meta { order:-1; display:flex; flex-wrap:wrap; gap:16px; width:100%; }
  .blog-meta > * + * { margin:0; padding:0; border:0; }
}
@media (max-width:640px) {
  .board { padding:28px 20px; }
  .hero-title { margin-top:20px; }
  .signup-unit { gap:8px; }
  .signup-input { padding-inline:12px; font-size:14px; }
  .signup-unit .btn-primary { padding-inline:16px; font-size:14px; }
  .trust { grid-template-columns:1fr; }
  .trust li { white-space:normal; }
  .facts { padding:14px; }
  .facts-row { grid-template-columns:1fr; row-gap:10px; }
  .facts-list { gap:12px; }
  .stage { max-width:100%; }
  .client-wrap { transform:none; }
  .client-slab { transform:translate(5px,8px); }
  .client-body { grid-template-columns:1fr; }
  .routes { margin:12px; padding:12px; }
  .route { grid-template-columns:18px minmax(0,1fr) auto; }
  .routes-legend { margin-top:12px; }
  .detail { padding:8px 16px 20px; }
  .detail-pair { grid-template-columns:1fr; }
  .device-row { flex-wrap:wrap; }
  .detail-name { font-size:20px; }
  .float-cta { right:16px; bottom:calc(16px + env(safe-area-inset-bottom,0px)); }
  .price-card { padding:24px; }
  .feature-panel { padding:24px; }
  .feature-cards .card:nth-child(even) { margin-left:12px; }
  [role="tablist"] { border-radius:var(--r-card); }
  [role="tab"] { padding-inline:16px; }
}
@media (prefers-reduced-motion:reduce) {
  .ticker-track { width:100%; transform:none !important; }
  .ticker-set { width:100%; flex-wrap:wrap; gap:16px; padding:0 var(--gutter); }
  .ticker-set + .ticker-set { display:none; }
}