html { scroll-behavior: smooth; }
body { background-color: #0A0D12; }
::selection { background: #2FE8D0; color: #0A0D12; }

/* ── SCROLLBAR ── */
*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
*::-webkit-scrollbar-track {
  background: transparent;
}
*::-webkit-scrollbar-thumb {
  background: #232B3A;
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover {
  background: #2FE8D0;
  border: 2px solid transparent;
  background-clip: content-box;
}

::selection { background: #2FE8D0; color: #0A0D12; }

/* focus visibility */
a:focus-visible, button:focus-visible {
outline: 2px solid #2FE8D0;
outline-offset: 3px;
}

.noise::before {
content: "";
position: absolute;
inset: 0;
background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.035) 1px, transparent 0);
background-size: 22px 22px;
pointer-events: none;
}

.grad-text {
background: linear-gradient(90deg, #2FE8D0 0%, #FF3D9A 100%);
-webkit-background-clip: text;
background-clip: text;
color: transparent;
}

/* channel scan marquee */
.marquee-track {
display: flex;
width: max-content;
animation: scroll-left 26s linear infinite;
}
@keyframes scroll-left {
from { transform: translateX(0); }
to { transform: translateX(-50%); }
}

/* tuner glitch effect on phone mockup */
.tuner-label {
animation: tuneFlicker 3.2s steps(1) infinite;
}
@keyframes tuneFlicker {
0%, 92% { opacity: 1; filter: blur(0px); }
93% { opacity: 0.3; filter: blur(2px); transform: translateX(2px); }
95% { opacity: 0.7; filter: blur(1px); transform: translateX(-2px); }
97% { opacity: 0.2; filter: blur(3px); }
100% { opacity: 1; filter: blur(0px); transform: translateX(0); }
}

.scan-line {
position: absolute;
left: 0; right: 0;
height: 40%;
background: linear-gradient(180deg, transparent, rgba(47,232,208,0.08), transparent);
animation: scanMove 4s ease-in-out infinite;
}
@keyframes scanMove {
0% { top: -40%; }
100% { top: 100%; }
}

.card-hover {
transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.card-hover:hover {
transform: translateY(-4px);
border-color: rgba(47,232,208,0.4);
box-shadow: 0 20px 40px -20px rgba(47,232,208,0.25);
}

.cta-glow {
box-shadow: 0 0 0 0 rgba(255,176,32,0.5);
transition: box-shadow .3s ease, transform .2s ease;
}
.cta-glow:hover {
box-shadow: 0 0 30px 4px rgba(255,176,32,0.35);
transform: translateY(-2px);
}

/* ── WALINE 留言板块美化 ── */

.waline-wrapper::before {
content: '';
position: absolute;
inset: 0;
border-radius: 16px;
background: linear-gradient(135deg, rgba(47,232,208,0.06), transparent 50%, rgba(255,61,154,0.04));
pointer-events: none;
}
.wl-panel {
background: rgba(18,22,31,0.8);
border: 1px solid #232B3A;
border-radius: 12px;
backdrop-filter: blur(4px);
}
.wl-editor:focus, .wl-input:focus {
background: #0d1117;
box-shadow: 0 0 0 1px rgba(47,232,208,0.15);
}
.wl-editor, .wl-input {
color: #EDEFF3;
background: #1B2230;
border-radius: 8px;
transition: all 0.2s;
}
@media (min-width: 640px) {
.waline-wrapper {
padding: 2.5rem;
}
}

@media (prefers-reduced-motion: reduce) {
.marquee-track, .tuner-label, .scan-line { animation: none !important; }
}

.scrollbar-none::-webkit-scrollbar { display: none; }
.scrollbar-none { scrollbar-width: none; -ms-overflow-style: none; }

/* ===== Waline 统一暗色主题 ===== */
  .waline-container {
    --waline-white: #12161F;
    --waline-bgcolor: #12161F;
    --waline-bgcolor-light: #1B2230;
    --waline-border-color: #232B3A;
    --waline-color: #EDEFF3;
    --waline-text-color: #8892A0;
    --waline-theme-color: #EDEFF3;
    --waline-active-color: #ffffff;
    --waline-bgcolor-hover: #1B2230;
    --waline-bgcolor-hover-light: #1B2230;
    --waline-badge-color: #555e6b;
    --waline-disable-bgcolor: #1B2230;
    --waline-disable-color: #555e6b;
    --waline-info-bgcolor: #1B2230;
    font-family: 'Noto Sans SC', sans-serif;
  }
  .waline-container .vbtn {
    border: 1px solid #232B3A;
    color: #EDEFF3;
    background: transparent;
    border-radius: 8px;
    padding: 0.5em 1.2em;
    font-size: 0.875rem;
    transition: all 0.2s;
  }
  .waline-container .vbtn:hover {
    border-color: #EDEFF3;
    color: #ffffff;
    background: rgba(237,239,243,0.05);
  }
  .waline-container .vbtn.primary {
    background: #EDEFF3 !important;
    color: #0A0D12 !important;
    border-color: #EDEFF3 !important;
    font-weight: 600;
  }
  .waline-container .vbtn.primary:hover {
    background: #ffffff !important;
    border-color: #ffffff !important;
  }
  .waline-container .vinput {
    border: 1px solid #232B3A !important;
    background: #1B2230 !important;
    color: #EDEFF3 !important;
    border-radius: 8px;
    padding: 0.6em 1em;
    transition: border-color 0.2s;
  }
  .waline-container .vinput:focus {
    border-color: #EDEFF3 !important;
    outline: none;
  }
  .waline-container .vinput::placeholder {
    color: #555e6b;
  }
  .waline-container .vinput-wrapper {
    border-bottom: none !important;
  }
  .waline-container .vinput-wrapper:focus-within {
    border-bottom: none !important;
  }
  .waline-container .vcount {
    color: #555e6b;
    font-size: 0.8rem;
  }
  .waline-container .vcard {
    border-bottom: 1px solid #1B2230;
    padding: 1.25em 0;
  }
  .waline-container .vcard:last-child {
    border-bottom: none;
  }
  .waline-container .vcard .vhead {
    color: #8892A0;
    font-size: 0.85rem;
  }
  .waline-container .vcard .vhead .vnick {
    color: #EDEFF3;
    font-weight: 600;
  }
  .waline-container .vcard .vhead .vnick:hover {
    color: #ffffff;
  }
  .waline-container .vcard .vmeta .vat {
    color: #8892A0;
  }
  .waline-container .vcard .vcontent {
    color: #c8ccd4;
    line-height: 1.7;
    font-size: 0.925rem;
  }
  .waline-container .vcard .vcontent.expand:after {
    background: linear-gradient(transparent, #12161F) !important;
  }
  .waline-container .vcard .vtime {
    color: #555e6b;
    font-size: 0.8rem;
  }
  .waline-container .vcard .vlike svg {
    fill: #555e6b;
    transition: fill 0.2s;
  }
  .waline-container .vcard .vlike:hover svg {
    fill: #EDEFF3;
  }
  .waline-container .vcard .vreply-btn {
    color: #8892A0;
    font-size: 0.85rem;
    transition: color 0.2s;
  }
  .waline-container .vcard .vreply-btn:hover {
    color: #EDEFF3;
  }
  .waline-container .vpreview {
    background: #1B2230;
    border: 1px solid #232B3A;
    border-radius: 8px;
    padding: 1em;
  }
  .waline-container .vpreview .vcontent {
    color: #c8ccd4;
  }
  .waline-container .vemoji-btn {
    fill: #555e6b;
    transition: fill 0.2s;
  }
  .waline-container .vemoji-btn:hover {
    fill: #EDEFF3;
  }
  .waline-container .vemoji-wrapper {
    background: #12161F;
    border: 1px solid #232B3A;
    border-radius: 8px;
  }
  .waline-container .vemoji-item {
    border-color: transparent;
    border-radius: 4px;
  }
  .waline-container .vemoji-item:hover {
    border-color: #EDEFF3;
  }
  .waline-container .vheader {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .waline-container .vheader .vheader-item {
    border-bottom: none !important;
    border: 1px solid #232B3A !important;
    background: #1B2230 !important;
    color: #EDEFF3 !important;
    border-radius: 8px;
    padding: 0.6em 1em;
    transition: border-color 0.2s;
  }
  .waline-container .vheader .vheader-item:focus {
    border-color: #EDEFF3 !important;
    outline: none;
  }
  .waline-container .vheader .vheader-item::placeholder {
    color: #555e6b;
  }
  .waline-container .vheader label {
    color: #8892A0;
    font-size: 0.875rem;
  }
  .waline-container .vpage {
    text-align: center;
    margin-top: 1.5rem;
  }
  .waline-container .vpage .vmore {
    border: 1px solid #232B3A;
    color: #8892A0;
    border-radius: 8px;
    padding: 0.5em 2em;
    transition: all 0.2s;
  }
  .waline-container .vpage .vmore:hover {
    border-color: #EDEFF3;
    color: #EDEFF3;
  }
  .waline-container .vpage .vpage-next,
  .waline-container .vpage .vpage-prev {
    color: #EDEFF3;
    border: 1px solid #232B3A;
    border-radius: 6px;
    padding: 0.4em 1em;
    margin: 0 0.2em;
    transition: all 0.2s;
    font-size: 0.85rem;
  }
  .waline-container .vpage .vpage-next:hover,
  .waline-container .vpage .vpage-prev:hover {
    border-color: #EDEFF3;
    color: #ffffff;
    background: rgba(237,239,243,0.05);
  }
  .waline-container .vpage .vpage-next.active,
  .waline-container .vpage .vpage-prev.active {
    background: #EDEFF3;
    color: #0A0D12;
    border-color: #EDEFF3;
  }
  .waline-container .waline-comment-count {
    color: #c8ccd4;
    font-weight: 600;
  }
  .waline-container blockquote {
    border-left: 3px solid #232B3A;
    color: #8892A0;
    margin: 0.5em 0;
    padding-left: 1em;
  }
  .waline-container .vinput.vedit {
    min-height: 6em;
  }
  .waline-container .vpanel {
    margin-bottom: 0.5rem;
  }
  .waline-container .vsubmit-wrap {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    align-items: center;
  }
  .waline-container .wl-power {
    display: none !important;
  }
.wl-power {
    display: none !important;
  }
/* ── BACKGROUND GLOW ── */
#bgGlow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(800px at 50% 50%, rgba(47,232,208,0.05), rgba(255,61,154,0.02) 40%, transparent 70%);
  transition: background 0.3s ease;
}
body {
  background: linear-gradient(180deg, #0A0D12 0%, #0e131d 50%, #0A0D12 100%);
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #1B2230;
  border: 1px solid #232B3A;
  color: #8892A0;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  backdrop-filter: blur(8px);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  border-color: #2FE8D0;
  color: #2FE8D0;
  background: #12161F;
  box-shadow: 0 0 20px rgba(47,232,208,0.15);
}
.back-to-top:active {
  transform: translateY(0) scale(0.92);
}

/* ── DOWNLOAD MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: 1rem;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.modal-card {
  background: #12161F;
  border: 1px solid #232B3A;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  position: relative;
  transform: scale(0.95) translateY(10px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid #232B3A;
  background: transparent;
  color: #8892A0;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.modal-close:hover {
  border-color: #EDEFF3;
  color: #EDEFF3;
  background: rgba(237,239,243,0.05);
}
.download-option {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.25rem;
  border-radius: 14px;
  border: 1px solid #232B3A;
  background: transparent;
  color: #EDEFF3;
  cursor: pointer;
  text-align: left;
  transition: all 0.25s ease;
  width: 100%;
}
.download-option:hover {
  border-color: #2FE8D0;
  background: rgba(47,232,208,0.05);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(47,232,208,0.1);
}
.download-option:active {
  transform: translateY(0) scale(0.98);
}
.download-option-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(47,232,208,0.1);
  border: 1px solid rgba(47,232,208,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #2FE8D0;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.download-option-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}
.download-option-title {
  font-weight: 600;
  font-size: 0.95rem;
}
.download-option-desc {
  font-size: 0.8rem;
  color: #8892A0;
}
.download-option-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,176,32,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFB020;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: all 0.2s;
}
.download-option:hover .download-option-arrow {
  background: rgba(255,176,32,0.2);
  transform: translateY(2px);
}

/* ── TEXT MODAL (disclaimer / usage) ── */
.text-modal {
  max-width: 540px;
  max-height: 50vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 2rem 1.8rem;
  text-align: left;
}
.text-modal .space-y-3 > p {
  padding-left: 0;
}
.text-modal .space-y-3 > p strong {
  display: inline;
}
@media (min-width: 640px) {
  .text-modal {
    padding: 2.5rem 2.2rem;
  }
}

/* ── MOBILE FLOATING NAV ── */
.mobile-nav {
  position: fixed;
  bottom: 2rem;
  left: 1rem;
  z-index: 9998;
}
.mobile-nav-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1B2230;
  border: 1px solid #232B3A;
  color: #2FE8D0;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  transition: all 0.3s ease;
}
.mobile-nav-toggle:hover {
  border-color: #2FE8D0;
  box-shadow: 0 0 24px rgba(47,232,208,0.18);
}
.mobile-nav-toggle:active {
  transform: scale(0.9);
}
.mobile-nav-menu {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 0;
  background: #12161F;
  border: 1px solid #232B3A;
  border-radius: 16px;
  padding: 0.4rem;
  min-width: 130px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.92);
  transform-origin: bottom left;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.mobile-nav-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.mobile-nav-link {
  display: block;
  padding: 0.55rem 0.9rem;
  color: #8892A0;
  font-size: 0.85rem;
  border-radius: 10px;
  transition: all 0.2s;
  white-space: nowrap;
  text-decoration: none;
}
.mobile-nav-link:hover {
  background: rgba(47,232,208,0.08);
  color: #EDEFF3;
}
.mobile-nav-link:active {
  background: rgba(47,232,208,0.12);
}

/* ── BACKGROUND GRID ── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(47,232,208,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,232,208,0.035) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -3;
}

/* ── FLOATING ORBS ── */
.bg-orb {
  position: fixed;
  left: var(--x);
  top: var(--y);
  width: var(--s, 300px);
  height: var(--s, 300px);
  background: radial-gradient(circle, var(--c, rgba(47,232,208,0.05)) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: -2;
  transform: translate(-50%, -50%);
  animation: orbFloat var(--d, 25s) ease-in-out infinite;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(-50%, -50%) translate(0, 0) scale(1); }
  25% { transform: translate(-50%, -50%) translate(35px, -30px) scale(1.06); }
  50% { transform: translate(-50%, -50%) translate(-30px, 40px) scale(0.94); }
  75% { transform: translate(-50%, -50%) translate(25px, -30px) scale(1.03); }
}