/* ============================================================
   JARVIS for Mac — 官网样式
   设计令牌：浅色默认，prefers-color-scheme + data-theme 手动切换
   ============================================================ */

:root {
  --paper: #ffffff;
  --surface: #f2f4f5;
  --surface-soft: #f7f8f9;
  --ink: #16181d;
  --muted: #61666e;
  --line: #d2d6da;
  --line-soft: #e4e7ea;
  --accent: #0c8f7d;
  --accent-hover: #0a7a6b;
  --accent-pressed: #076558;
  --accent-soft: #0c8f7d14;
  --accent-ring: #0c8f7d45;
  --on-accent: #ffffff;
  --ok: #17a673;
  --wip: #e0972b;
  --plan: #8a8d90;
  --shadow: 0 1px 2px rgba(22, 24, 29, .05), 0 12px 32px rgba(22, 24, 29, .07);
  --shadow-lg: 0 2px 6px rgba(22, 24, 29, .06), 0 30px 70px rgba(22, 24, 29, .13);
  --nav-bg: rgba(255, 255, 255, .72);

  --sans: "Space Grotesk", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1200px;
  --pad: 24px;
  --sec-gap: 96px;
  --radius: 14px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1214;
    --surface: #1a2023;
    --surface-soft: #14181b;
    --ink: #e7ebee;
    --muted: #e7ebeea8;
    --line: #e7ebee2e;
    --line-soft: #e7ebee1c;
    --accent: #3ad6bd;
    --accent-hover: #66e3cf;
    --accent-pressed: #93ecdc;
    --accent-soft: #3ad6bd2b;
    --accent-ring: #3ad6bd52;
    --on-accent: #06231d;
    --ok: #35c795;
    --wip: #eab254;
    --plan: #e7ebeeb8;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 32px rgba(0, 0, 0, .35);
    --shadow-lg: 0 2px 6px rgba(0, 0, 0, .45), 0 30px 70px rgba(0, 0, 0, .5);
    --nav-bg: rgba(14, 18, 20, .72);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #0e1214;
  --surface: #1a2023;
  --surface-soft: #14181b;
  --ink: #e7ebee;
  --muted: #e7ebeea8;
  --line: #e7ebee2e;
  --line-soft: #e7ebee1c;
  --accent: #3ad6bd;
  --accent-hover: #66e3cf;
  --accent-pressed: #93ecdc;
  --accent-soft: #3ad6bd2b;
  --accent-ring: #3ad6bd52;
  --on-accent: #06231d;
  --ok: #35c795;
  --wip: #eab254;
  --plan: #e7ebeeb8;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 32px rgba(0, 0, 0, .35);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, .45), 0 30px 70px rgba(0, 0, 0, .5);
  --nav-bg: rgba(14, 18, 20, .72);
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -.02em; line-height: 1.25; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: var(--on-accent);
  padding: 10px 16px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
.wrap-narrow { max-width: 820px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px;
  border-radius: 12px; border: 1px solid transparent;
  font-size: 15px; font-weight: 500; white-space: nowrap;
  cursor: pointer; transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; border-radius: 10px; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { background: var(--accent-pressed); transform: translateY(1px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); background: var(--surface); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 11px;
  border: 1px solid var(--line-soft); background: transparent; color: var(--ink);
  cursor: pointer; transition: background .18s ease, border-color .18s ease;
}
.icon-btn:hover { background: var(--surface); border-color: var(--line); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.nav.is-stuck { border-bottom-color: var(--line-soft); }
.nav-inner { display: flex; align-items: center; gap: 20px; height: 68px; }

.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand-mark { border-radius: 8px; }
.brand-name { font-weight: 600; font-size: 16.5px; letter-spacing: -.01em; }
.brand-soft { color: var(--muted); font-weight: 500; }

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-menu a {
  padding: 8px 13px; border-radius: 9px; font-size: 15px; color: var(--muted);
  transition: color .18s ease, background .18s ease;
}
.nav-menu a:hover { color: var(--ink); background: var(--surface); }

.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-menu + .nav-actions { margin-left: 16px; }

.ico-moon { display: none; }
:root[data-theme="dark"] .ico-sun { display: none; }
:root[data-theme="dark"] .ico-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ico-sun { display: none; }
  :root:not([data-theme="light"]) .ico-moon { display: block; }
}

.burger { display: none; }

@media (max-width: 900px) {
  .nav-menu {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line-soft);
    padding: 8px var(--pad) 16px;
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 8px; border-radius: 10px; font-size: 16px; }
  .burger { display: inline-flex; }
  .nav-cta { display: none; }
}

/* ---------- sections ---------- */
.sec { padding: var(--sec-gap) 0; }
.sec-alt { background: var(--surface-soft); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }

.sec-head { max-width: 760px; margin-bottom: 44px; }
.sec-head h2 { font-size: 36px; line-height: 48px; font-weight: 500; letter-spacing: -.96px; }
.sec-lead { margin-top: 14px; color: var(--muted); font-size: 17px; }

.eyebrow {
  display: inline-block; margin-bottom: 20px;
  padding: 5px 13px; border-radius: 8px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--mono);
  font-size: 12.5px; font-weight: 500; letter-spacing: .02em;
}

/* ---------- hero ---------- */
.hero { padding: 72px 0 88px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -200px 0 auto 0; height: 700px;
  background:
    radial-gradient(60% 55% at 50% 0%, var(--accent-soft), transparent 70%),
    radial-gradient(var(--line) 1px, transparent 1.4px);
  background-size: auto, 26px 26px;
  -webkit-mask-image: linear-gradient(#000 52%, transparent);
  mask-image: linear-gradient(#000 52%, transparent);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 1fr; gap: 52px;
  align-items: start;
}
.hero-copy { max-width: 720px; margin: 0 auto; text-align: center; }
.hero-copy .eyebrow { margin-bottom: 20px; }
.hero-sub { margin: 20px auto 0; font-size: 19px; color: var(--muted); max-width: 32em; }
.hero-title {
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 600; letter-spacing: -1.5px; line-height: 1.18;
}
.grad-text {
  background: linear-gradient(118deg, var(--accent), #0ea5e9 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy .cmd { margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; justify-content: center; }
.hero-note { margin-top: 22px; font-size: 14px; color: var(--muted); }

/* command block —— 恒定终端风，不随主题变色 */
.cmd {
  display: flex; align-items: center; gap: 12px;
  margin-top: 30px; padding: 12px 12px 12px 18px;
  background: #14181c; border: 1px solid #2a3136; border-radius: 12px;
  max-width: 520px;
}
.cmd::before {
  content: "$"; flex: none;
  font-family: var(--mono); font-size: 14px;
  color: #3ad6bd; opacity: .85;
}
.cmd code {
  font-family: var(--mono); font-size: 14px; color: #e7ebee;
  white-space: normal; word-break: break-all; line-height: 1.55;
  flex: 1; padding: 2px 0;
  scrollbar-width: none;
}
.cmd code::-webkit-scrollbar { display: none; }
.cmd-copy {
  display: inline-flex; align-items: center; gap: 6px; flex: none;
  height: 32px; padding: 0 12px; border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .07); color: #e7ebee;
  font-family: inherit; font-size: 13px; cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.cmd-copy:hover { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.cmd-copy.done { background: var(--ok); border-color: var(--ok); color: #fff; }
.cmd-mini { margin: 14px 0; padding: 10px 14px; max-width: none; }
.cmd-mini code { font-size: 12.5px; }
.cmd-mini::before { font-size: 12.5px; }

/* ---------- macOS 截图展示台 ---------- */
.hero-visual {
  position: relative;
  max-width: 980px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
}
.macwin {
  position: relative;
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.macwin-bar {
  display: flex; align-items: center; gap: 7px;
  height: 36px; padding: 0 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}
.tl { width: 11px; height: 11px; border-radius: 50%; flex: none; }
.tl-r { background: #f3635c; }
.tl-y { background: #f5ae4e; }
.tl-g { background: #57bf4f; }
.macwin-title {
  flex: 1; text-align: center; margin-right: 47px;
  font-size: 12.5px; color: var(--muted);
  font-weight: 500; letter-spacing: .02em;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.macwin-body { position: relative; }
.macwin-body img {
  width: 100%; height: auto;
  background: var(--surface);
}
.macwin-glow {
  position: absolute; inset: 40px -36px -40px -36px; z-index: -1;
  background: radial-gradient(50% 55% at 50% 50%, var(--accent-soft), transparent 72%);
  filter: blur(8px);
}

.float-chip {
  position: absolute; z-index: 2;
  padding: 8px 14px; border-radius: 10px;
  background: var(--paper); border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 13px; font-weight: 500; color: var(--ink);
  white-space: nowrap;
  animation: chipFloat 5.5s ease-in-out infinite alternate;
}
.fc-1 { top: 5%; right: -2%; animation-delay: 0s; }
.fc-2 { bottom: 40%; left: -3%; animation-delay: 1.1s; }
.fc-3 { bottom: 5%; left: 5%; animation-delay: 2.2s; }
@keyframes chipFloat {
  from { transform: translateY(-4px); }
  to { transform: translateY(6px); }
}
@media (prefers-reduced-motion: reduce) { .float-chip { animation: none; } }

@media (max-width: 640px) {
  .hero { padding: 48px 0 64px; }
  .cmd { max-width: 100%; }
  .hero-sub { font-size: 17px; }
  .fc-1 { right: 0; }
  .fc-2 { left: 0; }
  .fc-3 { right: 2%; font-size: 12px; }
}

/* ---------- marquee ---------- */
.marquee-sec { padding: 8px 0 44px; border-bottom: 1px solid var(--line-soft); }
.marquee-title { color: var(--muted); font-size: 13.5px; letter-spacing: .06em; margin-bottom: 18px; }
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; gap: 12px; width: max-content; animation: marq 34s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.chip {
  flex: none; padding: 8px 20px; border-radius: 10px;
  border: 1px solid var(--line-soft); background: var(--surface);
  font-family: var(--mono);
  font-size: 13.5px; color: var(--ink); white-space: nowrap;
}
@keyframes marq { from { transform: translateX(0); } to { transform: translateX(-33.3333%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

/* ---------- grid + cards ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1023px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line-soft);
  border-radius: var(--radius); padding: 26px 24px 28px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.card:hover { border-color: var(--line); transform: translateY(-2px); box-shadow: var(--shadow); }
.card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }
.card-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 11px; margin-bottom: 16px;
  background: var(--accent-soft); color: var(--accent);
}

/* ---------- compare table ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--paper); }
.cmp, .plat { border-collapse: collapse; width: 100%; min-width: 760px; font-size: 15px; }
.cmp th, .cmp td, .plat th, .plat td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); }
.cmp thead th, .plat thead th { font-weight: 500; font-size: 14px; color: var(--muted); background: var(--surface-soft); white-space: nowrap; }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td,
.plat tbody tr:last-child th, .plat tbody tr:last-child td { border-bottom: 0; }
.cmp tbody th, .plat tbody th { font-weight: 500; color: var(--ink); white-space: nowrap; }
.cmp td { text-align: center; }
.cmp .cmp-row-head { text-align: left; min-width: 180px; }
.cmp .cmp-us { background: var(--accent-soft); }
.cmp thead .cmp-us { color: var(--accent); font-weight: 600; }
.cmp-foot { margin-top: 12px; font-size: 13px; color: var(--muted); }

.mk { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; padding: 0 8px; border-radius: 999px; font-size: 14px; }
.mk.yes { color: var(--ok); font-weight: 600; }
.mk.no { color: var(--muted); opacity: .6; }
.mk.part { font-size: 12.5px; color: var(--muted); background: var(--surface); border: 1px solid var(--line-soft); border-radius: 6px; }

.plat td { font-size: 15px; }
.plat td:nth-child(3) { color: var(--muted); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; vertical-align: 1px; }
.dot.ok { background: var(--ok); }
.dot.wip { background: var(--wip); }
.dot.plan { background: var(--plan); }

/* ---------- steps ---------- */
.steps .card { display: flex; flex-direction: column; }
.step-no {
  font-family: var(--mono); font-size: 13px; color: var(--accent);
  letter-spacing: .08em; margin-bottom: 12px;
}
.ticks { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.ticks li { position: relative; padding-left: 24px; color: var(--muted); font-size: 15px; }
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: 9px;
  width: 11px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.step .btn { align-self: flex-start; margin-top: auto; }
.step-note { margin-top: 14px; }

/* ---------- flow ---------- */
.flow {
  display: flex; align-items: stretch; gap: 10px;
  overflow-x: auto; padding-bottom: 8px;
}
.flow-node {
  position: relative; flex: 1 1 0; min-width: 190px;
  background: var(--paper); border: 1px solid var(--line-soft); border-radius: 14px;
  padding: 20px 18px;
}
.flow-node h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.flow-node p { font-size: 13.5px; color: var(--muted); line-height: 1.5; }
.flow-idx {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%; margin-bottom: 12px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--mono); font-size: 12px;
}
.flow-end { border-color: var(--accent); background: var(--accent-soft); }
.flow-end strong { color: var(--accent); }
.flow-split { flex: 1.5 1 0; min-width: 260px; }
.flow-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.flow-half { border-left: 2px solid var(--accent-soft); padding-left: 12px; }
.flow-arrow {
  flex: none; align-self: center; width: 22px; height: 2px; background: var(--line); position: relative;
}
.flow-arrow::after {
  content: ""; position: absolute; right: -1px; top: -3px;
  border: 4px solid transparent; border-left-color: var(--line);
}
@media (max-width: 900px) {
  .flow { flex-direction: column; overflow-x: visible; }
  .flow-node, .flow-split { min-width: 0; }
  .flow-arrow { width: 2px; height: 20px; margin-left: 24px; }
  .flow-arrow::after { right: -3px; top: auto; bottom: -1px; border-left-color: transparent; border-top-color: var(--line); }
}
@media (max-width: 480px) { .flow-pair { grid-template-columns: 1fr; gap: 10px; } }

/* ---------- faq ---------- */
.faq { border-top: 1px solid var(--line-soft); }
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 4px; cursor: pointer; list-style: none;
  font-size: 17px; font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.acc-ico { flex: none; position: relative; width: 16px; height: 16px; }
.acc-ico::before, .acc-ico::after {
  content: ""; position: absolute; background: var(--accent); border-radius: 2px;
  transition: transform .22s ease, opacity .22s ease;
}
.acc-ico::before { left: 0; top: 7px; width: 16px; height: 2px; }
.acc-ico::after { left: 7px; top: 0; width: 2px; height: 16px; }
.faq details[open] .acc-ico::after { transform: rotate(90deg); opacity: 0; }
.faq-body { padding: 0 4px 22px; color: var(--muted); font-size: 15.5px; }
.faq-body ul { display: flex; flex-direction: column; gap: 8px; }
.faq-body li { position: relative; padding-left: 18px; }
.faq-body li::before { content: ""; position: absolute; left: 3px; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1023px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { display: flex; flex-direction: column; }
.qr { width: 150px; height: 150px; border-radius: 12px; margin-bottom: 16px; background: #fff; padding: 6px; border: 1px solid var(--line-soft); object-fit: cover; }
.link-arrow { margin-top: 14px; color: var(--accent); font-size: 15px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.link-arrow::after { content: "→"; transition: transform .18s ease; }
.link-arrow:hover::after { transform: translateX(3px); }
.link-arrow + .link-arrow { margin-top: 8px; }

/* ---------- cta band ---------- */
.cta-band { padding: 88px 0; background: var(--surface); border-top: 1px solid var(--line-soft); }
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: 36px; line-height: 48px; font-weight: 500; letter-spacing: -.96px; }
.cta-inner p { margin-top: 14px; color: var(--muted); }
.cta-inner .hero-btns { justify-content: center; margin-top: 26px; }

/* ---------- footer ---------- */
.foot { background: var(--paper); border-top: 1px solid var(--line-soft); padding: 56px 0 32px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 900px) { .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; } .foot-brand { grid-column: 1 / -1; } }
.foot-tag { margin-top: 14px; color: var(--muted); font-size: 14.5px; max-width: 30em; }
.foot-col { display: flex; flex-direction: column; gap: 10px; }
.foot-col h4 { font-size: 14px; color: var(--ink); font-weight: 600; margin-bottom: 4px; }
.foot-col a { color: var(--muted); font-size: 14.5px; transition: color .18s ease; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 13px; }
.foot-bottom .disclaimer { margin-top: 6px; opacity: .85; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- mobile section spacing ---------- */
@media (max-width: 767px) {
  :root { --sec-gap: 64px; }
  .sec-head h2, .cta-inner h2 { font-size: 26px; line-height: 34px; letter-spacing: -.6px; }
  .sec-head { margin-bottom: 32px; }
  .cta-band { padding: 64px 0; }
}

/* ---------- GitHub star ---------- */
.btn-star { background: #24292f; color: #fff; border-color: #24292f; }
.btn-star:hover { background: #32383f; border-color: #32383f; transform: translateY(-1px); }
.btn-star .star-count { display: inline-flex; align-items: center; gap: 4px; margin-left: 2px; padding: 3px 9px; border-radius: 999px; background: rgba(255,255,255,.16); font-size: 13px; font-weight: 600; }
.btn-star .star-count b { font-weight: 700; }
html[data-theme="dark"] .btn-star { background: #f0f3f6; color: #111; border-color: #f0f3f6; }
html[data-theme="dark"] .btn-star:hover { background: #fff; border-color: #fff; }
html[data-theme="dark"] .btn-star .star-count { background: rgba(0,0,0,.1); }
.star-callout { margin-top: 14px; font-size: 15px; }
.star-callout a { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 10px; background: var(--accent-soft); border: 1px solid var(--accent); color: var(--accent); font-weight: 600; text-decoration: none; transition: background .18s ease, transform .18s ease; }
.star-callout a:hover { background: var(--accent); color: var(--on-accent); transform: translateY(-1px); }
.star-callout-arrow { font-weight: 700; }
.nav-star { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-size: 13px; font-weight: 600; white-space: nowrap; transition: border-color .18s ease, background .18s ease; }
.nav-star:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.nav-star b { font-weight: 700; }
@media (max-width: 720px) { .nav-star-text { display: none; } .nav-star { padding: 0 10px; } }