*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    --bg: #FFFFFF;
    --bg-soft: #F5F7FA;
    --bg-soft2: #EEF2F7;
    --ink: #14161A;
    --ink-soft: #586072;
    --line: rgba(20,22,26,0.09);
    --brand: #C84B31;
    --brand-dk: #A83825;
    --brand-bg: #FBEAE5;
    --blue: #2D6FF6;
    --blue-bg: #EAF1FE;
    --shadow-sm: 0 1px 3px rgba(20,22,26,0.06), 0 1px 2px rgba(20,22,26,0.04);
    --shadow-md: 0 8px 30px rgba(20,22,26,0.08);
    --shadow-lg: 0 24px 60px rgba(20,22,26,0.12);
  }
  html { scroll-behavior: smooth; }
  body { font-family: 'Noto Sans TC', sans-serif; background: var(--bg); color: var(--ink); line-height: 1.7; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
  ::selection { background: var(--brand-bg); }

  /* NAV */
  nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.78); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line); padding: 0.7rem 1.5rem; display: flex; align-items: center; justify-content: space-between; }
  .nav-logo { display: flex; align-items: center; gap: 0.5rem; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.05rem; color: var(--ink); text-decoration: none; }
  .nav-logo img { width: 26px; height: 26px; border-radius: 7px; }
  .nav-logo .tld { color: var(--brand); }
  .nav-cta { background: var(--ink); color: #fff; border: none; padding: 0.5rem 1.1rem; border-radius: 999px; font-family: 'Noto Sans TC', sans-serif; font-size: 0.88rem; font-weight: 500; cursor: pointer; text-decoration: none; transition: transform 0.12s, background 0.15s; }
  .nav-cta:hover { background: #000; transform: translateY(-1px); }

  /* HERO */
  .hero { position: relative; padding: 5rem 1.5rem 4.5rem; text-align: center; overflow: hidden; background: radial-gradient(120% 90% at 50% -10%, var(--blue-bg) 0%, var(--bg) 55%); }
  .hero-pill { display: inline-flex; align-items: center; gap: 0.5rem; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); border-radius: 999px; padding: 0.4rem 0.95rem; font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 1.5rem; }
  .hero-pill b { color: var(--ink); font-weight: 600; }
  .hero h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); font-weight: 900; line-height: 1.18; letter-spacing: -0.01em; max-width: 780px; margin: 0 auto 1.25rem; }
  .hero h1 .grad { background: linear-gradient(100deg, var(--brand), var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .hero-sub { font-size: clamp(1rem, 2.4vw, 1.18rem); color: var(--ink-soft); max-width: 860px; margin: 0 auto 2rem; line-height: 1.8; }
  .hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; justify-content: center; }
  .btn { border-radius: 999px; font-size: 1rem; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem; transition: transform 0.12s, box-shadow 0.15s, background 0.15s; }
  .btn-primary { background: var(--brand); color: #fff; border: none; padding: 0.85rem 1.9rem; box-shadow: 0 8px 20px rgba(200,75,49,0.28); }
  .btn-primary:hover { background: var(--brand-dk); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(200,75,49,0.34); }
  .btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); padding: 0.85rem 1.6rem; box-shadow: var(--shadow-sm); }
  .btn-ghost:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
  .hero-fine { margin-top: 1.1rem; font-size: 0.84rem; color: var(--ink-soft); }
  .hero-mascot { width: 96px; height: 96px; display: block; margin: 0 auto 1.4rem; filter: drop-shadow(0 12px 26px rgba(99,102,241,0.3)); animation: floaty 4.5s ease-in-out infinite; }
  @keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

  /* PHONE MOCK STRIP */
  .feed-strip { max-width: 480px; margin: 3rem auto 0; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-lg); overflow: hidden; text-align: left; }
  .feed-head { display: flex; align-items: center; gap: 0.6rem; padding: 0.85rem 1.1rem; border-bottom: 1px solid var(--line); font-size: 0.86rem; color: var(--ink-soft); }
  .feed-head .dot { width: 9px; height: 9px; border-radius: 50%; background: #2ecc71; box-shadow: 0 0 0 3px rgba(46,204,113,0.15); }
  .feed-head b { color: var(--ink); font-weight: 600; }
  .feed-row { display: flex; gap: 0.7rem; padding: 0.85rem 1.1rem; border-bottom: 1px solid var(--line); }
  .feed-row:last-child { border-bottom: none; }
  .feed-av { width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0; background: var(--bg-soft2); display: flex; align-items: center; justify-content: center; font-size: 1.05rem; }
  .feed-body { font-size: 0.86rem; line-height: 1.55; }
  .feed-body .meta { color: var(--ink-soft); font-size: 0.76rem; margin-bottom: 0.15rem; }
  .feed-body .meta .name { color: var(--ink); font-weight: 600; }

  /* SECTIONS */
  .section { padding: 5rem 1.5rem; }
  .inner { max-width: 1200px; margin: 0 auto; }
  .eyebrow { font-family: 'Space Grotesk', sans-serif; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.13em; text-transform: uppercase; color: var(--brand); margin-bottom: 0.7rem; text-align: center; }
  .section h2 { font-size: clamp(1.7rem, 4.4vw, 2.5rem); font-weight: 900; line-height: 1.28; text-align: center; max-width: 640px; margin: 0 auto 0.9rem; letter-spacing: -0.01em; }
  .section .lead { font-size: 1.02rem; color: var(--ink-soft); text-align: center; max-width: 780px; margin: 0 auto 3rem; line-height: 1.85; }

  /* FEELINGS GRID */
  .feel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  @media (max-width: 640px) { .feel-grid { grid-template-columns: 1fr; } }
  .feel { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 16px; padding: 1.6rem; transition: transform 0.15s, box-shadow 0.15s; }
  .feel:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
  .feel .ico { font-size: 1.7rem; margin-bottom: 0.7rem; }
  .feel h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }
  .feel p { font-size: 0.9rem; color: var(--ink-soft); line-height: 1.7; }

  /* WORRIES */
  .worry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
  @media (max-width: 700px) { .worry-grid { grid-template-columns: 1fr; } }
  .worry { background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--brand); border-radius: 14px; padding: 1.5rem 1.6rem; box-shadow: var(--shadow-sm); transition: transform 0.15s, box-shadow 0.15s; }
  .worry:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
  .worry .q { display: flex; gap: 0.55rem; align-items: flex-start; font-weight: 700; font-size: 1rem; color: var(--ink); margin-bottom: 0.6rem; line-height: 1.5; }
  .worry .q .qm { color: var(--brand); flex-shrink: 0; font-family: 'Space Grotesk', sans-serif; }
  .worry .a { display: flex; gap: 0.55rem; align-items: flex-start; font-size: 0.9rem; color: var(--ink-soft); line-height: 1.75; }
  .worry .a .am { color: var(--blue); flex-shrink: 0; font-weight: 700; }
  .worry .a b { color: var(--ink); }

  /* COMPARE */
  .cmp-section { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; max-width: 820px; margin: 0 auto; }
  @media (max-width: 640px) { .cmp { grid-template-columns: 1fr; } }
  .cmp-card { background: #fff; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); }
  .cmp-card.good { box-shadow: var(--shadow-md); border-color: rgba(45,111,246,0.25); }
  .cmp-top { padding: 1.1rem 1.3rem; font-weight: 700; font-size: 0.98rem; display: flex; align-items: center; gap: 0.5rem; }
  .cmp-card.bad .cmp-top { background: var(--bg-soft2); color: var(--ink-soft); }
  .cmp-card.good .cmp-top { background: linear-gradient(100deg, var(--brand), var(--blue)); color: #fff; }
  .cmp-list { padding: 0.5rem 1.3rem 1rem; }
  .cmp-li { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.65rem 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; line-height: 1.55; }
  .cmp-li:last-child { border-bottom: none; }
  .cmp-li .mk { flex-shrink: 0; font-size: 0.95rem; }

  /* MIGRATION STEPS */
  .mig-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; counter-reset: step; }
  @media (max-width: 760px) { .mig-grid { grid-template-columns: 1fr; } }
  .mig { position: relative; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 16px; padding: 1.75rem 1.5rem 1.5rem; }
  .mig .n { position: absolute; top: -16px; left: 1.5rem; width: 36px; height: 36px; border-radius: 50%; background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1rem; box-shadow: var(--shadow-sm); }
  .mig h3 { font-size: 1.05rem; font-weight: 700; margin: 0.6rem 0 0.4rem; }
  .mig p { font-size: 0.9rem; color: var(--ink-soft); line-height: 1.7; }
  .mig a { color: var(--brand); text-decoration: none; font-weight: 600; font-size: 0.86rem; display: inline-block; margin-top: 0.6rem; }
  .mig a:hover { text-decoration: underline; }
  .reassure { max-width: 600px; margin: 2.25rem auto 0; background: var(--blue-bg); border: 1px solid rgba(45,111,246,0.22); border-radius: 14px; padding: 1.1rem 1.4rem; font-size: 0.92rem; color: #1f4fb0; line-height: 1.75; text-align: center; }
  .reassure b { color: #163b87; }

  /* FEATURE CHIPS */
  .feat-strip { margin-top: 2.75rem; text-align: center; }
  .feat-lead { font-size: 0.94rem; color: var(--ink-soft); margin-bottom: 1.1rem; }
  .feat-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
  .feat-chips span { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 0.45rem 0.95rem; font-size: 0.85rem; color: var(--ink); box-shadow: var(--shadow-sm); }

  /* POWERED BY MASTODON */
  .powered-wrap { text-align: center; margin-top: 2.75rem; }
  .powered { display: inline-flex; align-items: center; gap: 0.85rem; padding: 0.7rem 1.5rem; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.13); border-radius: 999px; }
  .powered span { font-size: 0.8rem; color: rgba(255,255,255,0.6); letter-spacing: 0.05em; text-transform: uppercase; font-family: 'Space Grotesk', sans-serif; }
  .powered img { height: 22px; display: block; }

  /* APPS */
  .apps-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2.5rem; align-items: center; }
  @media (max-width: 820px) { .apps-grid { grid-template-columns: 1fr; gap: 2rem; } .apps-right { order: -1; } }
  .fly-card { display: flex; align-items: center; gap: 1rem; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 1.15rem 1.3rem; box-shadow: var(--shadow-sm); text-decoration: none; color: inherit; position: relative; transition: transform 0.15s, box-shadow 0.15s; }
  .fly-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
  .fly-card .fly-ico { font-size: 1.9rem; }
  .fly-card h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 0.2rem; }
  .fly-card .tagm { display: inline-block; font-size: 0.7rem; font-weight: 600; color: var(--blue); background: var(--blue-bg); border-radius: 999px; padding: 0.1rem 0.5rem; margin-left: 0.4rem; vertical-align: middle; }
  .fly-card p { font-size: 0.86rem; color: var(--ink-soft); line-height: 1.6; }
  .fly-card .arrow { position: absolute; right: 1.1rem; top: 1.1rem; color: var(--blue); }
  .plat { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 1.1rem; }
  .plat-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
  .plat-label { font-family: 'Space Grotesk', sans-serif; font-size: 0.78rem; font-weight: 600; color: var(--ink-soft); width: 82px; flex-shrink: 0; }
  .badge { display: inline-block; transition: transform 0.12s; }
  .badge:hover { transform: translateY(-2px); }
  .badge img { height: 44px; display: block; }
  .more { font-size: 0.86rem; color: var(--ink-soft); }
  .more a { color: var(--brand); text-decoration: none; font-weight: 500; }
  .more a:hover { text-decoration: underline; }
  .all-apps { display: inline-block; margin-top: 1.5rem; font-size: 0.9rem; color: var(--brand); font-weight: 600; text-decoration: none; }
  .all-apps:hover { text-decoration: underline; }
  .phone { width: 256px; margin: 0 auto; background: #fff; border: 8px solid #14161A; border-radius: 36px; box-shadow: var(--shadow-lg); overflow: hidden; }
  .phone-notch { height: 24px; background: #14161A; position: relative; }
  .phone-notch::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 92px; height: 16px; background: #14161A; border-radius: 0 0 12px 12px; }
  .phone-screen { padding: 0.5rem 0.7rem 0.8rem; }
  .p-head { font-size: 0.7rem; color: var(--ink-soft); padding: 0.45rem 0.25rem; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 0.35rem; }
  .p-head .pdot { width: 7px; height: 7px; border-radius: 50%; background: #2ecc71; }
  .p-post { display: flex; gap: 0.5rem; padding: 0.6rem 0.25rem; border-bottom: 1px solid var(--line); }
  .p-post:last-child { border-bottom: none; }
  .p-av { width: 28px; height: 28px; border-radius: 50%; background: var(--bg-soft2); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; }
  .p-body { font-size: 0.7rem; line-height: 1.5; }
  .p-body .pn { font-weight: 600; color: var(--ink); }
  .p-body .pm { color: var(--ink-soft); }

  /* MORE-THAN-MASTODON */
  .more-section { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
  .more-section .inner { position: relative; z-index: 1; }
  .more-deco { position: absolute; right: -50px; bottom: -60px; width: 300px; height: auto; opacity: 0.08; pointer-events: none; z-index: 0; }
  .more-section .eyebrow { color: #8fb4ff; }
  .more-section h2 { color: #fff; }
  .more-section .lead { color: rgba(255,255,255,0.62); }
  .svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; max-width: 1200px; margin: 0 auto; }
  @media (max-width: 760px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 440px) { .svc-grid { grid-template-columns: 1fr; } }
  .svc { display: block; text-decoration: none; color: inherit; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 14px; padding: 1.25rem; transition: background 0.15s, transform 0.15s; position: relative; }
  .svc:hover { background: rgba(255,255,255,0.09); transform: translateY(-2px); }
  .svc:hover h3 { color: #8fb4ff; }
  .svc::after { content: '↗'; position: absolute; right: 1rem; top: 1.1rem; font-size: 0.95rem; color: #8fb4ff; opacity: 0; transition: opacity 0.15s; }
  .svc:hover::after { opacity: 0.85; }
  .svc .ico { font-size: 1.4rem; margin-bottom: 0.55rem; }
  .svc h3 { font-size: 0.96rem; font-weight: 700; margin-bottom: 0.3rem; }
  .svc p { font-size: 0.83rem; color: rgba(255,255,255,0.6); line-height: 1.65; }
  .more-note { text-align: center; margin-top: 2rem; font-size: 0.9rem; color: rgba(255,255,255,0.55); }

  /* ADMIN */
  .admin { display: flex; align-items: center; gap: 1.4rem; max-width: 640px; margin: 0 auto; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 18px; padding: 1.6rem 1.8rem; }
  @media (max-width: 540px) { .admin { flex-direction: column; text-align: center; } }
  .admin-av { width: 116px; height: 116px; border-radius: 50%; flex-shrink: 0; overflow: hidden; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 2.1rem; box-shadow: 0 0 0 5px var(--brand-bg), 0 10px 30px rgba(200,75,49,0.18); }
  .admin-av img { width: 100%; height: 100%; object-fit: cover; }
  .admin h3 { font-size: 1.05rem; font-weight: 700; }
  .admin .handle { font-family: 'Space Grotesk', sans-serif; font-size: 0.84rem; color: var(--brand); margin-bottom: 0.45rem; }
  .admin p { font-size: 0.88rem; color: var(--ink-soft); line-height: 1.7; }
  .admin a { color: var(--brand); text-decoration: none; font-weight: 600; }
  .admin a:hover { text-decoration: underline; }

  /* FAQ */
  .faq { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
  details.fq { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 14px; padding: 0 1.3rem; transition: background 0.15s; }
  details.fq[open] { background: #fff; box-shadow: var(--shadow-md); }
  .fq summary { list-style: none; cursor: pointer; padding: 1.1rem 0; font-weight: 700; font-size: 0.96rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
  .fq summary::-webkit-details-marker { display: none; }
  .fq summary::after { content: '+'; font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem; color: var(--brand); transition: transform 0.2s; line-height: 1; }
  details.fq[open] summary::after { transform: rotate(45deg); }
  .fq .ans { padding: 0 0 1.1rem; font-size: 0.9rem; color: var(--ink-soft); line-height: 1.8; }
  .fq .ans a { color: var(--brand); text-decoration: none; }
  .fq .ans a:hover { text-decoration: underline; }

  /* CTA */
  .cta { text-align: center; padding: 5.5rem 1.5rem; background: radial-gradient(120% 100% at 50% 0%, var(--brand-bg) 0%, var(--bg) 60%); }
  .cta img { width: 72px; height: 72px; margin-bottom: 1.25rem; }
  .cta h2 { font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 900; max-width: 560px; margin: 0 auto 0.9rem; letter-spacing: -0.01em; }
  .cta p { color: var(--ink-soft); max-width: 620px; margin: 0 auto 2rem; line-height: 1.8; }
  .cta .hero-fine { margin-top: 1.25rem; }

  footer { background: var(--ink); color: rgba(255,255,255,0.45); text-align: center; padding: 2rem 1.5rem; font-size: 0.82rem; line-height: 2; }
  footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
  footer a:hover { color: #fff; }
  .foot-nav { display: flex; gap: 1.25rem; justify-content: center; flex-wrap: wrap; margin-bottom: 0.75rem; }