/* ==========================================================================
   KYOMISTUDIO — 無印風 / 自然簡約
   White paper background · khaki accents · generous space · soft organic lines
   ========================================================================== */

:root {
  --color-bg:        #FAF7F1;   /* warm paper white */
  --color-bg-soft:   #F2ECE1;   /* alternate section wash */
  --color-card:      #FFFFFF;   /* card surface */
  --color-khaki:     #B6A179;   /* primary khaki accent */
  --color-khaki-deep:#8C7752;   /* deeper khaki for emphasis / hover */
  --color-ink:       #4A4234;   /* warm charcoal-brown for headings */
  --color-text:      #6B6254;   /* body text */
  --color-text-soft: #9C9182;   /* muted / captions */
  --color-line:      #E4DCCC;   /* hairline borders */
  --color-line-soft: #ECE5D8;

  --font-display: 'Cormorant Garamond', 'Noto Serif TC', serif;
  --font-heading: 'Noto Serif TC', serif;
  --font-body:    'Noto Sans TC', -apple-system, sans-serif;

  --max-width: 1080px;
  --space-section: clamp(4rem, 9vw, 8rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Subtle paper grain overlay for depth -------------------------------- */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(140,119,82,0.05), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(140,119,82,0.06), transparent 50%),
    repeating-linear-gradient(45deg, rgba(74,66,52,0.012) 0 1px, transparent 1px 3px);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

::selection {
  background: var(--color-khaki);
  color: var(--color-bg);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 2;
  animation: rise 1.1s cubic-bezier(.22,.85,.34,1) both;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.8rem, 9vw, 6rem);
  letter-spacing: 0.16em;
  color: var(--color-ink);
  line-height: 1.05;
}

.hero__subtitle {
  margin-top: 1.25rem;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  letter-spacing: 0.5em;
  color: var(--color-ink);
  text-indent: 0.5em; /* visually re-center the trailing letter-spacing */
}

.hero__divider {
  display: flex;
  justify-content: center;
  margin: 2.25rem 0;
}
.hero__divider span {
  display: block;
  width: 1px;
  height: 3.5rem;
  background: linear-gradient(to bottom, transparent, var(--color-khaki), transparent);
  animation: stretch 1.4s cubic-bezier(.22,.85,.34,1) both;
  animation-delay: 0.4s;
}

.hero__tagline {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: var(--color-ink);
  letter-spacing: 0.12em;
}

.hero__logo {
  width: clamp(96px, 14vw, 156px);
  height: auto;
  margin: 0 auto 1.75rem;
  opacity: 0;
  animation: rise 1s cubic-bezier(.22,.85,.34,1) both;
}

.hero__scroll {
  position: absolute;
  bottom: 2.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  letter-spacing: 0.35em;
  color: var(--color-text-soft);
  transition: color 0.3s ease;
}
.hero__scroll:hover { color: var(--color-khaki-deep); }
.hero__scroll span {
  width: 1px;
  height: 2.25rem;
  background: var(--color-text-soft);
  position: relative;
  overflow: hidden;
}
.hero__scroll span::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-khaki-deep);
  animation: drip 2.2s ease-in-out infinite;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes stretch {
  from { transform: scaleY(0); transform-origin: top; }
  to   { transform: scaleY(1); transform-origin: top; }
}
@keyframes drip {
  0%   { top: -100%; }
  60%  { top: 100%; }
  100% { top: 100%; }
}

/* ==========================================================================
   ZONES (大區)
   ========================================================================== */
.zone {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-section) 1.5rem;
}

.zone--alt {
  max-width: none;
  background: var(--color-bg-soft);
}
.zone--alt > * {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.zone__head {
  display: flex;
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: baseline;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.zone__index {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-khaki);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  position: relative;
  top: 0.15em;
}

.zone__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.12em;
  color: var(--color-ink);
  margin-bottom: 0.85rem;
}

.zone__desc {
  max-width: 38em;
  color: var(--color-text);
  font-size: 0.98rem;
  line-height: 2;
}

/* ---- Cards ---- */
.cards {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.25rem);
}
.cards--grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.cards--grid .card__name {
  font-size: 1rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.cards--single {
  grid-template-columns: minmax(0, 360px);
}
.cards--single .card__icon {
  max-width: 180px;
  margin-left: auto;
  margin-right: auto;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.45s cubic-bezier(.22,.85,.34,1), border-color 0.4s ease, box-shadow 0.45s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-khaki);
  box-shadow: 0 28px 56px -32px rgba(74, 66, 52, 0.28);
}

.card__placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  background:
    repeating-linear-gradient(135deg, rgba(182,161,121,0.08) 0 2px, transparent 2px 14px),
    var(--color-bg-soft);
  border: 1px dashed var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--color-text-soft);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.card__icon {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: var(--color-bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}
.card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(.22,.85,.34,1);
}
.card:hover .card__icon img {
  transform: scale(1.045);
}

.card__name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  color: var(--color-ink);
  margin-bottom: 0.65rem;
}

.card__name-zh {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-soft);
  letter-spacing: 0.12em;
  margin-top: -0.4rem;
  margin-bottom: 0.9rem;
}

.card__tagline {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.85;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.card__note {
  font-size: 0.8rem;
  color: var(--color-text-soft);
  letter-spacing: 0.08em;
}

.card__badge {
  align-self: flex-start;
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--color-khaki-deep);
  border: 1px solid var(--color-khaki);
  border-radius: 999px;
  padding: 0.4em 1.1em;
  margin-bottom: 1.5rem;
}

.card--soon {
  background: linear-gradient(180deg, var(--color-card), var(--color-bg-soft));
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  padding: 0.95em 1.9em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(.22,.85,.34,1);
  white-space: nowrap;
}
.btn__icon { width: 1.05em; height: 1.05em; flex-shrink: 0; }
.btn__icon--arrow { transition: transform 0.35s ease; }

.btn--download {
  align-self: center;
  background: transparent;
  border-color: var(--color-khaki);
  color: var(--color-khaki-deep);
}
.btn--download:hover {
  background: var(--color-khaki);
  color: var(--color-bg);
}
.btn--download:hover .btn__icon--arrow { transform: translateY(2px); }

.card .btn--download {
  width: 75%;
  align-self: center;
  justify-content: center;
  padding: 1.1em 1.9em;
}

.btn--thanks {
  background: var(--color-ink);
  color: var(--color-bg);
  border-color: var(--color-ink);
}
.btn--thanks:hover {
  background: var(--color-khaki-deep);
  border-color: var(--color-khaki-deep);
  transform: translateY(-2px);
}

.btn--donate {
  background: var(--color-khaki);
  color: var(--color-bg);
  border-color: var(--color-khaki);
}
.btn--donate:hover {
  background: var(--color-khaki-deep);
  border-color: var(--color-khaki-deep);
  transform: translateY(-2px);
}

/* ==========================================================================
   DONATE
   ========================================================================== */
.donate {
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  gap: 2rem 3rem;
  align-items: center;
  justify-content: space-between;
}

.donate__text h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  color: var(--color-ink);
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.donate__text p {
  font-size: 0.88rem;
  color: var(--color-text-soft);
}
.donate__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
}
.donate__icon {
  flex-shrink: 0;
  color: var(--color-khaki);
}

/* ==========================================================================
   FUTURE / 預留大區
   ========================================================================== */
.zone--future {
  text-align: left;
  padding-bottom: clamp(6rem, 12vw, 10rem);
}
.zone--future .zone__index {
  color: var(--color-text-soft);
}
.zone--future .zone__title { color: var(--color-text-soft); }

.future__row {
  display: flex;
  gap: 0.9rem;
  margin-top: 1rem;
}
.future__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-line);
  animation: pulse 2.6s ease-in-out infinite;
}
.future__dot:nth-child(2) { animation-delay: 0.4s; }
.future__dot:nth-child(3) { animation-delay: 0.8s; }
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.4); background: var(--color-khaki); }
}

/* ==========================================================================
   SUPPORT / 小額贊助
   ========================================================================== */
.support__panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.support__qr {
  flex-shrink: 0;
  display: block;
  width: clamp(150px, 24vw, 190px);
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: var(--color-card);
  padding: 0.9rem;
  transition: transform 0.35s cubic-bezier(.22,.85,.34,1), border-color 0.35s ease;
}
.support__qr:hover {
  transform: translateY(-3px);
  border-color: var(--color-khaki);
}
.support__qr img {
  width: 100%;
  border-radius: 8px;
}

.support__info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.1rem;
}
.support__hint {
  font-size: 0.92rem;
  color: var(--color-text);
}
.support__note {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-text-soft);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: clamp(3rem, 7vw, 5rem) 1.5rem clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--color-line);
}
.footer__brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.3em;
  color: var(--color-ink);
  margin-bottom: 0.6rem;
}
.footer__line {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-khaki-deep);
  letter-spacing: 0.12em;
  margin-bottom: 2.25rem;
}

.footer__contact {
  margin-bottom: 2.25rem;
}
.footer__contact-label {
  display: inline-block;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15em;
  transition: color 0.3s ease, border-color 0.3s ease;
}
.footer__contact-label:hover {
  color: var(--color-khaki-deep);
  border-color: var(--color-khaki);
}

.footer__copyright {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--color-text-soft);
  opacity: 0.65;
}

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */
.zone__head,
.card,
.donate,
.support__panel {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(.22,.85,.34,1), transform 0.9s cubic-bezier(.22,.85,.34,1);
}
.zone__head.is-visible,
.card.is-visible,
.donate.is-visible,
.support__panel.is-visible,
.profile.is-visible,
.app-entry.is-visible,
.article-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.cards--grid .card:nth-child(1) { transition-delay: 0.05s; }
.cards--grid .card:nth-child(2) { transition-delay: 0.15s; }
.cards--grid .card:nth-child(3) { transition-delay: 0.25s; }
.cards--grid .card:nth-child(4) { transition-delay: 0.35s; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .cards--grid {
    grid-template-columns: 1fr;
  }
  .cards--grid .card__name {
    font-size: 1.3rem;
    letter-spacing: 0.08em;
    white-space: normal;
  }
  .cards--grid .card__tagline {
    display: block;
  }
  .zone__head {
    flex-direction: column;
    gap: 0.75rem;
  }
  .donate {
    flex-direction: column;
    align-items: flex-start;
  }
  .donate__actions {
    width: 100%;
  }
  .btn--thanks, .btn--donate {
    flex-grow: 1;
  }
  .support__panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   SITE NAV
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,247,241,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.site-nav__brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.22em;
  color: var(--color-ink);
  flex-shrink: 0;
  margin-right: auto;
}
.site-nav__search-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--color-ink);
  line-height: 0;
  flex-shrink: 0;
  transition: color 0.2s ease;
}
.site-nav__search-btn:hover { color: var(--color-khaki-deep); }
.site-nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.site-nav__link {
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  color: var(--color-text);
  transition: color 0.25s ease;
  padding-bottom: 0.2em;
}
.site-nav__link:hover { color: var(--color-ink); }
.site-nav__link.is-active {
  color: var(--color-khaki-deep);
  border-bottom: 1px solid var(--color-khaki);
}
.site-nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--color-ink);
  line-height: 0;
}
@media (max-width: 640px) {
  .site-nav__hamburger { display: block; }
  .site-nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    gap: 1.25rem;
    z-index: 99;
  }
  .site-nav__links.is-open { display: flex; }
}

/* ==========================================================================
   PAGE HERO（子頁面標題區）
   ========================================================================== */
.page-hero {
  text-align: center;
  padding: clamp(4rem,9vw,7rem) 1.5rem clamp(2rem,5vw,4rem);
  max-width: var(--max-width);
  margin: 0 auto;
}
.page-hero__eyebrow {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-khaki);
  letter-spacing: 0.25em;
  margin-bottom: 0.75rem;
}
.page-hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem,5vw,3.2rem);
  letter-spacing: 0.16em;
  color: var(--color-ink);
}
.page-hero__desc {
  font-size: 0.95rem;
  color: var(--color-text);
  max-width: 36em;
  margin: 1.25rem auto 0;
  line-height: 2;
}

/* ==========================================================================
   ABOUT PAGE
   ========================================================================== */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem,5vw,4rem);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem clamp(4rem,9vw,8rem);
}
.profile { display: flex; flex-direction: column; gap: 1.25rem; }
.profile__avatar {
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-soft);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
}
.profile__avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile__name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--color-ink);
}
.profile__role {
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  color: var(--color-khaki-deep);
  text-transform: uppercase;
  margin-top: -0.5rem;
}
.profile__bio { font-size: 0.92rem; color: var(--color-text); line-height: 2; }
.profile__bio p + p { margin-top: 1em; }
@media (max-width: 720px) {
  .profile-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   APPS PAGE
   ========================================================================== */
.app-list {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem,7vw,5rem);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem clamp(4rem,9vw,8rem);
}
.app-entry {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1.35rem;
  align-items: start;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-line);
  scroll-margin-top: 84px;
}
.app-entry:last-child { border-bottom: none; padding-bottom: 0; }
.app-entry__icon {
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: 22%;
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.app-entry__icon img { width: 100%; height: 100%; object-fit: cover; }
.app-entry__body { display: flex; flex-direction: column; gap: 0.55rem; }
.app-entry__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: 0.18em;
  color: var(--color-ink);
}

.app-entry__name-zh {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-soft);
  letter-spacing: 0.12em;
  margin-top: -0.35rem;
}

/* Controls row: dropdowns + download */
.app-entry__controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}
.app-drop__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--color-text);
  background: none;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  padding: 0.38em 0.8em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.app-drop__trigger svg {
  width: 11px; height: 11px; flex-shrink: 0;
  transition: transform 0.25s ease;
}
.app-drop__trigger:hover { border-color: var(--color-khaki); color: var(--color-khaki-deep); }
.app-drop__trigger.is-active {
  background: var(--color-bg-soft);
  border-color: var(--color-khaki);
  color: var(--color-khaki-deep);
}
.app-drop__trigger.is-active svg { transform: rotate(180deg); }
.app-entry__controls .btn--download {
  margin-left: auto;
  font-size: 0.85rem;
  padding: 0.38em 1em;
  letter-spacing: 0.08em;
}

/* Dropdown panels */
.app-drop__panel {
  display: none;
  padding: 0.85rem 0 0.1rem;
  border-top: 1px solid var(--color-line);
}
.app-drop__panel.is-active { display: block; }
.app-drop__panel p { font-size: 0.95rem; color: var(--color-text); line-height: 1.9; }
.app-drop__panel p + p { margin-top: 0.9rem; }

/* Features — numbered list */
.app-entry__features {
  list-style: none;
  counter-reset: feature-counter;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.app-entry__features li {
  counter-increment: feature-counter;
  display: flex;
  gap: 0.7rem;
  align-items: baseline;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
}
.app-entry__features li::before {
  content: counter(feature-counter, decimal-leading-zero);
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-khaki);
  min-width: 1.8rem;
}

/* Tutorial steps */
.app-how__steps {
  list-style: none;
  counter-reset: step-counter;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.app-how__steps li {
  counter-increment: step-counter;
  display: flex;
  gap: 0.7rem;
  align-items: baseline;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
}
.app-how__steps li::before {
  content: counter(step-counter);
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-khaki);
  min-width: 1.8rem;
}

@media (max-width: 600px) {
  .app-entry { grid-template-columns: 72px 1fr; gap: 1rem; }
  .app-entry__controls .btn--download { margin-left: 0; }
}

/* ==========================================================================
   FAB — 浮動贊助按鈕
   ========================================================================== */
.fab {
  position: fixed;
  right: 1.5rem;
  bottom: 2rem;
  z-index: 50;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  color: var(--color-khaki);
  filter: drop-shadow(0 2px 6px rgba(140,119,82,0.25));
  transition: transform 0.3s ease, color 0.3s ease, filter 0.3s ease;
}
.fab:hover {
  transform: scale(1.15);
  color: var(--color-khaki-deep);
  filter: drop-shadow(0 3px 10px rgba(140,119,82,0.4));
}
.fab svg { width: 28px; height: 28px; }
.fab__tip {
  position: absolute;
  right: calc(100% + 0.65rem);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  white-space: nowrap;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  padding: 0.3em 0.75em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.fab:hover .fab__tip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ==========================================================================
   BLOG PAGE — 列表頁 + 獨立文章頁
   ========================================================================== */
.blog-section {
  max-width: var(--max-width); margin: 0 auto;
  padding: 0 1.5rem clamp(4rem,9vw,8rem);
}
.article-list { list-style: none; }
.article-item { border-bottom: 1px solid var(--color-line); }
.article-item__link {
  display: block;
  padding: 2rem 0;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s ease;
}
.article-item__link:hover { opacity: 0.7; }
.article-item__meta {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--color-text-soft);
  margin-bottom: 0.6rem;
}
.article-item__title {
  font-family: var(--font-heading);
  font-size: clamp(1rem,2vw,1.2rem);
  letter-spacing: 0.05em;
  color: var(--color-ink);
  line-height: 1.5;
  font-weight: 500;
  margin-bottom: 0.75rem;
}
.article-item__preview {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-soft);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 文章分頁 --------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.5rem;
}
.pagination__btn,
.pagination__num {
  border: 1px solid var(--color-line);
  background: var(--color-card);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.pagination__num { min-width: 2.4rem; text-align: center; }
.pagination__btn:hover:not(:disabled),
.pagination__num:hover { border-color: var(--color-khaki); color: var(--color-ink); }
.pagination__btn:disabled { opacity: 0.35; cursor: default; }
.pagination__num.is-active {
  background: var(--color-khaki);
  border-color: var(--color-khaki);
  color: #fff;
}

/* 獨立文章頁 blog/[slug].html */
.article-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem,7vw,5rem) 1.5rem clamp(4rem,9vw,8rem);
}
.article-page__back { margin-bottom: 2rem; }
.article-page__back a {
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  color: var(--color-khaki-deep);
  text-decoration: none;
  transition: color 0.2s ease;
}
.article-page__back a:hover { color: var(--color-ink); }
.article-page__hero {
  margin-bottom: clamp(2rem,5vw,3rem);
  padding-bottom: clamp(1.5rem,4vw,2.5rem);
  border-bottom: 1px solid var(--color-line);
}
.article-page__meta {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--color-text-soft);
  margin-bottom: 1rem;
}
.article-page__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.6rem,4vw,2.6rem);
  letter-spacing: 0.08em;
  color: var(--color-ink);
  line-height: 1.4;
}
.article-page__body {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 2.2;
}
.article-page__body p + p { margin-top: 1.2em; }
.article-page__sub {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-ink);
  letter-spacing: 0.04em;
  margin-top: 1.75em;
  margin-bottom: -0.4em;
}

/* ==========================================================================
   APP SCREENSHOTS (phone mockups)
   ========================================================================== */
.app-screenshots {
  display: flex;
  gap: 1rem;
  margin: 1.25rem 0 1.5rem;
}
.app-screen {
  flex: 1;
  max-width: 155px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.app-screen__frame {
  width: 100%;
  background: #1e1e1e;
  border-radius: 20px;
  padding: 5px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.18);
}
.app-screen__body {
  border-radius: 15px;
  overflow: hidden;
  background: #fff;
  aspect-ratio: 9 / 19;
  display: flex;
  flex-direction: column;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 10px;
  line-height: 1.3;
}
.app-screen__label {
  font-size: 0.72rem;
  color: var(--color-text-soft);
  text-align: center;
  letter-spacing: 0.05em;
}
@media (max-width: 900px) {
  .app-screen { max-width: 130px; }
}
@media (max-width: 720px) {
  .app-screenshots { overflow-x: auto; padding-bottom: 0.25rem; gap: 0.75rem; }
  .app-screen { flex: 0 0 115px; max-width: 115px; }
}
.app-screen__frame { cursor: zoom-in; }

/* Screenshot lightbox ---------------------------------------------------- */
body.modal-open { overflow: hidden; }
.screen-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 16, 0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.25rem;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.screen-lightbox.is-open { opacity: 1; pointer-events: auto; }
.screen-lightbox__frame { width: min(88vw, 380px); cursor: zoom-out; }
.screen-lightbox__frame .app-screen__frame { cursor: zoom-out; }
.screen-lightbox__label {
  margin-top: 0.9rem;
  text-align: center;
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  opacity: 0.85;
}
.screen-lightbox__close {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  color: #1e1e1e;
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
.screen-lightbox__close:hover { background: #fff; }
@media (max-width: 480px) {
  .screen-lightbox__close { top: 0.9rem; right: 0.9rem; width: 40px; height: 40px; }
}

/* Site search ------------------------------------------------------------ */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 16, 0.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5rem 1.25rem 1.25rem;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.search-overlay.is-open { opacity: 1; pointer-events: auto; }
.search-overlay__panel {
  width: 100%;
  max-width: 560px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.22);
  overflow: hidden;
}
.search-overlay__field {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-text-soft);
}
.search-overlay__field svg { flex-shrink: 0; }
.search-overlay__input {
  flex: 1;
  border: none;
  outline: none;
  background: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
}
.search-overlay__input::placeholder { color: var(--color-text-soft); }
.search-overlay__close {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-soft);
  font-size: 1.3rem;
  line-height: 1;
  padding: 0.2rem;
  flex-shrink: 0;
}
.search-overlay__close:hover { color: var(--color-ink); }
.search-overlay__results { max-height: 60vh; overflow-y: auto; }
.search-overlay__result {
  display: block;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--color-line-soft);
  text-decoration: none;
  color: inherit;
  transition: background 0.15s ease;
}
.search-overlay__result:last-child { border-bottom: none; }
.search-overlay__result:hover { background: var(--color-bg-soft); }
.search-overlay__result-meta {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-text-soft);
  margin-bottom: 0.25rem;
}
.search-overlay__result-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--color-ink);
  margin-bottom: 0.3rem;
}
.search-overlay__result-excerpt {
  font-size: 0.8rem;
  color: var(--color-text);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-overlay__empty {
  padding: 1.75rem 1.25rem;
  text-align: center;
  color: var(--color-text-soft);
  font-size: 0.85rem;
}

/* Scroll reveal — new page elements */
.profile,
.app-entry,
.article-item {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(.22,.85,.34,1), transform 0.9s cubic-bezier(.22,.85,.34,1);
}