/* =====================================================================
   iPaste 官网 · 样式
   设计语言与应用本体一致：纸白底、slate 墨色、应用蓝 #2563EB、青绿 #0D9488。
   标题强调词使用应用的「文字选区」高亮，功能区以「剪贴卡片」为结构单元。
   两个字族：Familjen Grotesk（标题）+ Spline Sans Mono（剪贴板素材），正文系统字体。
   ===================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --paper: #f6f8fb;
  --card: #ffffff;
  --card-soft: #fbfcfe;
  --ink: #0f172a;
  --muted: #5a6a82;
  --line: #e3e9f1;
  --line-strong: #cbd5e1;

  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --blue-tint: #eff6ff;
  --teal: #0d9488;
  --sel-bg: #99f6e4;
  --sel-ink: #134e4a;

  --accent-history: #2563eb;
  --accent-link: #0284c7;
  --accent-image: #0369a1;
  --accent-color: #0d9488;
  --accent-text: #475569;
  --accent-violet: #7c3aed;
  --accent-amber: #d97706;

  --font-display: "Familjen Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Spline Sans Mono", ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --radius-lg: 18px;
  --radius: 14px;
  --radius-sm: 10px;

  --shadow-window: 0 18px 48px rgba(15, 23, 42, 0.18);
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.05);
  --shadow-lift: 0 4px 10px rgba(15, 23, 42, 0.06), 0 16px 40px rgba(15, 23, 42, 0.1);
  --ring-blue: 0 0 0 3px rgba(37, 99, 235, 0.16);

  --ease: cubic-bezier(0.22, 0.8, 0.3, 1);
  --nav-h: 4rem;
}

:root[data-theme="dark"] {
  --paper: #0a1122;
  --card: #101b31;
  --card-soft: #0d1729;
  --ink: #e7eef8;
  --muted: #93a5c0;
  --line: #22304b;
  --line-strong: #33456a;

  --blue: #629bff;
  --blue-deep: #4d84ea;
  --blue-tint: #14213d;
  --teal: #2dd4bf;
  --sel-bg: #115e59;
  --sel-ink: #ccfbf1;

  --accent-history: #629bff;
  --accent-link: #38bdf8;
  --accent-image: #7dd3fc;
  --accent-color: #2dd4bf;
  --accent-text: #94a3b8;
  --accent-violet: #a78bfa;
  --accent-amber: #fbbf24;

  --shadow-window: 0 24px 64px rgba(2, 6, 17, 0.6);
  --shadow-card: 0 1px 2px rgba(2, 6, 17, 0.4), 0 8px 24px rgba(2, 6, 17, 0.35);
  --shadow-lift: 0 4px 10px rgba(2, 6, 17, 0.45), 0 16px 40px rgba(2, 6, 17, 0.5);
  --ring-blue: 0 0 0 3px rgba(98, 155, 255, 0.22);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 2rem);
  -webkit-text-size-adjust: 100%;
}

html.reduced-motion {
  scroll-behavior: auto;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  /* 从上到下的柔和过渡：顶部偏蓝 → 纸白 → 底部偏青 */
  background:
    linear-gradient(
        180deg,
        color-mix(in srgb, var(--blue) 8%, var(--paper)) 0%,
        var(--paper) 36%,
        var(--paper) 64%,
        color-mix(in srgb, var(--teal) 7%, var(--paper)) 100%
      )
      fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 与应用一致的选区颜色 */
::selection {
  background: var(--sel-bg);
  color: var(--sel-ink);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

strong {
  font-weight: 650;
  color: var(--ink);
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

input,
textarea {
  font: inherit;
  color: inherit;
}

/* 与应用一致的焦点样式（青绿描边） */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2rem);
}

/* ---------- 全站网格背景：鼠标划过局部点亮 ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  --grid: 44px;
  --mx: -999px;
  --my: -999px;
  background-image:
    linear-gradient(color-mix(in srgb, var(--ink) 3.5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 3.5%, transparent) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
}

/* 点亮层：同一张网格换上品牌色，用径向遮罩只露出鼠标附近 */
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(13rem circle at var(--mx) var(--my), color-mix(in srgb, var(--blue) 13%, transparent), transparent 66%),
    linear-gradient(color-mix(in srgb, var(--blue) 42%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--teal) 42%, transparent) 1px, transparent 1px);
  background-size: auto, var(--grid) var(--grid), var(--grid) var(--grid);
  -webkit-mask-image: radial-gradient(15rem circle at var(--mx) var(--my), #000 25%, transparent 72%);
  mask-image: radial-gradient(15rem circle at var(--mx) var(--my), #000 25%, transparent 72%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}

.bg-grid[data-active="true"]::after {
  opacity: 1;
}

html.reduced-motion .bg-grid::after {
  display: none;
}

.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  z-index: 200;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.85rem;
  transition: top 0.2s var(--ease);
}

.skip-link:focus-visible {
  top: 1rem;
}

/* ---------- 图标 ---------- */
.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon--xs {
  width: 0.85rem;
  height: 0.85rem;
}

.icon--sm {
  width: 1rem;
  height: 1rem;
}

.icon--lg {
  width: 1.9rem;
  height: 1.9rem;
}

/* ---------- 文字部件 ---------- */
/* 标题强调词：半透明高亮马克笔，入场时从左往右划过 */
.grad {
  position: relative;
  z-index: 0;
  display: inline-block;
}

.grad::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.18em -0.22em -0.04em -0.16em;
  background: linear-gradient(
    98deg,
    color-mix(in srgb, var(--teal) 44%, transparent) 4%,
    color-mix(in srgb, var(--blue) 34%, transparent) 96%
  );
  border-radius: 0.45em 0.65em 0.4em 0.7em / 0.7em 0.4em 0.65em 0.45em;
  transform: skewX(-7deg) rotate(-0.6deg);
  transform-origin: left center;
  mix-blend-mode: multiply;
  pointer-events: none;
}

:root[data-theme="dark"] .grad::before {
  mix-blend-mode: normal;
  background: linear-gradient(
    98deg,
    color-mix(in srgb, var(--teal) 26%, transparent) 4%,
    color-mix(in srgb, var(--blue) 22%, transparent) 96%
  );
}

/* 划过式入场 */
html.js [data-reveal] .grad::before {
  transform: skewX(-7deg) rotate(-0.6deg) scaleX(0);
  transition: transform 0.5s var(--ease) 0.3s;
}

html.js [data-reveal].in .grad::before {
  transform: skewX(-7deg) rotate(-0.6deg) scaleX(1);
}

html.js .hero .grad::before {
  animation: marker-sweep 0.55s var(--ease) 0.75s both;
}

@keyframes marker-sweep {
  from {
    transform: skewX(-7deg) rotate(-0.6deg) scaleX(0);
  }

  to {
    transform: skewX(-7deg) rotate(-0.6deg) scaleX(1);
  }
}

/* 行内键帽 */
.kbd-inline,
.cap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.1em 0.5em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 0.45em;
  background: var(--card);
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 500;
  font-style: normal;
  color: var(--ink);
  white-space: nowrap;
}

.cap {
  font-size: 1rem;
  padding: 0.3em 0.65em;
}

.cap--xs {
  font-size: 0.8em;
  padding: 0.08em 0.45em;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.btn--primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.28);
}

:root[data-theme="dark"] .btn--primary {
  color: #0a1122;
}

.btn--primary:hover {
  background: var(--blue-deep);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.32);
}

.btn--ghost {
  background: var(--card);
  border-color: var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.btn .icon {
  transition: transform 0.18s var(--ease);
}

.btn:hover .icon:last-child {
  transform: translateX(3px);
}

.btn--sm {
  padding: 0.45rem 0.95rem;
  font-size: 0.88rem;
  border-radius: 10px;
}

.btn--lg {
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  transition: color 0.15s var(--ease), background-color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.icon-btn:hover {
  color: var(--ink);
  background: var(--card);
  border-color: var(--line);
}

/* ---------- 导航：悬浮圆角胶囊，与内容同宽 ---------- */
.nav {
  position: fixed;
  inset: 0.8rem 0 auto 0;
  z-index: 100;
  padding-inline: clamp(0.9rem, 3vw, 1.25rem);
  pointer-events: none;
}

.nav__inner {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: var(--nav-h);
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  border-radius: 18px;
  background: color-mix(in srgb, var(--paper) 42%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.04);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.nav[data-scrolled="true"] .nav__inner {
  background: color-mix(in srgb, var(--paper) 58%, transparent);
  border-color: color-mix(in srgb, var(--line) 85%, transparent);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.09);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand__mark {
  display: inline-flex;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.14);
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-inline: auto;
}

.nav__links a {
  padding: 0.45rem 0.8rem;
  border-radius: 9px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.15s var(--ease), background-color 0.15s var(--ease);
}

.nav__links a:hover {
  color: var(--ink);
  background: var(--card);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* 主题切换图标 */
:root[data-theme="light"] .icon--moon {
  display: none;
}

:root[data-theme="dark"] .icon--sun {
  display: none;
}

/* ---------- 语言菜单 ---------- */
.lang-menu {
  position: relative;
}

.lang-menu__button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.15s var(--ease), background-color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.lang-menu__button:hover {
  color: var(--ink);
  background: var(--card);
  border-color: var(--line);
}

.lang-menu__chev {
  transition: transform 0.18s var(--ease);
}

.lang-menu[data-open="true"] .lang-menu__chev {
  transform: rotate(180deg);
}

.lang-menu__panel {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 11rem;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-lift);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.lang-menu[data-open="true"] .lang-menu__panel {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-menu__panel button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 0;
  border-radius: 9px;
  background: transparent;
  font-size: 0.88rem;
  text-align: left;
  color: var(--ink);
}

.lang-menu__panel button:hover {
  background: var(--blue-tint);
}

.lang-menu__panel button[aria-checked="true"] {
  color: var(--blue);
  font-weight: 600;
}

.lang-menu__code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  /* clip 不产生滚动条；clip-margin 给装饰留出呼吸空间（Safari 退化为贴边裁剪） */
  overflow: clip;
  overflow-clip-margin: 3rem;
  padding: calc(var(--nav-h) + clamp(3rem, 8vh, 5.5rem)) 0 clamp(4.5rem, 7vh, 5.5rem);
  background:
    radial-gradient(56rem 30rem at 78% -8rem, rgba(37, 99, 235, 0.07), transparent 68%),
    radial-gradient(40rem 24rem at 8% 4rem, rgba(13, 148, 136, 0.05), transparent 70%);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2rem);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  transition: border-color 0.15s var(--ease), color 0.15s var(--ease);
}

.pill--live:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.pill__dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 22%, transparent);
  animation: dot-pulse 2.6s ease-in-out infinite;
}

@keyframes dot-pulse {
  50% {
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--teal) 8%, transparent);
  }
}

.hero__title {
  margin-top: 1.1rem;
  font-size: clamp(1.9rem, 3.8vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

/* 单行短语不内部断行；空间不足时只在两个短语之间换行 */
.hero__title .line {
  display: inline;
  white-space: nowrap;
}

@media (max-width: 420px) {
  .hero__title .line {
    white-space: normal;
  }
}

.hero__lede {
  margin-top: 1.15rem;
  max-width: 34rem;
  font-size: 1.08rem;
  color: var(--muted);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.hero__hint {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}

.hero__hint .icon {
  color: var(--teal);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.hero__trust li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero__trust .icon {
  color: var(--teal);
}

/* 首屏入场序列 */
html.js .hero__copy > * {
  opacity: 0;
  transform: translateY(12px);
  animation: rise 0.6s var(--ease) forwards;
}

html.js .hero__copy > :nth-child(1) {
  animation-delay: 0.05s;
}

html.js .hero__copy > :nth-child(2) {
  animation-delay: 0.15s;
}

html.js .hero__copy > :nth-child(3) {
  animation-delay: 0.25s;
}

html.js .hero__copy > :nth-child(4) {
  animation-delay: 0.33s;
}

html.js .hero__copy > :nth-child(5) {
  animation-delay: 0.4s;
}

html.js .hero__copy > :nth-child(6) {
  animation-delay: 0.46s;
}

html.js .hero__stage {
  opacity: 0;
  transform: translateY(18px) scale(0.985);
  animation: rise 0.7s var(--ease) 0.3s forwards;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 应用窗口复刻（保持应用本体的浅色外观） ---------- */
.hero__stage {
  position: relative;
  min-width: 0;
  perspective: 1100px;
}

/* 窗口装饰：光环着陆台（身后）+ 漂浮内容芯片（前后景） */
.stage-art {
  position: absolute;
  inset: -2.5rem -4rem -5.5rem;
  pointer-events: none;
}

.stage-front {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* 台面光池 */
.stage-art__glow {
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 1.6rem;
  height: 54%;
  background: radial-gradient(
    58% 70% at 50% 84%,
    color-mix(in srgb, var(--blue) 30%, transparent),
    color-mix(in srgb, var(--teal) 16%, transparent) 55%,
    transparent 80%
  );
  filter: blur(26px);
}

/* 透视同心圆环：窗口悬浮其上 */
.stage-art__pad {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  width: min(136%, 49rem);
  transform: translateX(-50%);
}

.stage-art__pad .pad-pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: pad-pulse 3.4s var(--ease) infinite;
}

@keyframes pad-pulse {
  0% {
    opacity: 0.65;
    transform: scale(0.55);
  }

  75% {
    opacity: 0;
    transform: scale(1.18);
  }

  100% {
    opacity: 0;
    transform: scale(1.18);
  }
}

/* 漂浮的内容芯片：小玻璃卡片，上下轻浮 */
.stage-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.34rem 0.65rem;
  border: 1px solid color-mix(in srgb, var(--line-strong) 65%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--card) 76%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: var(--shadow-card);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  animation: chip-float var(--dur, 6s) ease-in-out var(--delay, 0s) infinite;
}

@keyframes chip-float {
  50% {
    transform: translateY(-9px) rotate(1.4deg);
  }
}

.stage-chip .icon {
  color: var(--accent-link);
}

.stage-chip .swatch {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 4px;
}

/* 身后两枚：文本落在台面中部，链接从右侧探出 */
.stage-chip--aa {
  left: 36%;
  bottom: 1.4rem;
}

.stage-chip--link {
  right: -0.6rem;
  bottom: 9.5rem;
}

/* 前景两枚：压在窗口下缘，制造景深（不向左突出，避免贴近正文） */
.stage-chip--color {
  left: 9%;
  bottom: -1.9rem;
  color: var(--ink);
}

.stage-chip--enter {
  right: 5%;
  bottom: -2.6rem;
}

.stage-chip--enter .icon {
  color: var(--teal);
}

/* 闪烁小星点：细十字 */
.stage-spark {
  position: absolute;
  width: 15px;
  height: 15px;
  animation: spark-twinkle 2.8s ease-in-out infinite;
}

.stage-spark::before,
.stage-spark::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: var(--teal);
}

.stage-spark::before {
  left: 0;
  right: 0;
  top: 6.5px;
  height: 2px;
}

.stage-spark::after {
  top: 0;
  bottom: 0;
  left: 6.5px;
  width: 2px;
}

.stage-spark--1 {
  left: 0.2rem;
  top: 20%;
}

.stage-spark--2 {
  right: -0.9rem;
  top: 6%;
  transform: scale(0.72);
  animation-delay: -1.4s;
}

.stage-spark--2::before,
.stage-spark--2::after {
  background: var(--blue);
}

@keyframes spark-twinkle {
  0%,
  100% {
    opacity: 0.25;
  }

  50% {
    opacity: 0.9;
  }
}

/* 静置带一点展台式倾角；hover 时由 JS 驱动 --rx/--ry 跟随鼠标 */
.app-window {
  position: relative;
  border: 1px solid rgba(148, 163, 184, 0.72);
  border-radius: var(--radius-lg);
  overflow: hidden;
  /* 毛玻璃：让网格与光环从窗口后面隐约透出 */
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.72), rgba(248, 250, 252, 0.62));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-window);
  font-family: var(--font-body);
  color: #0f172a;
  transform: rotateX(var(--rx, 3.5deg)) rotateY(var(--ry, -7deg)) scale(var(--tz, 1));
  will-change: transform;
}

/* 深色主题下背景过暗，抬高不透明度保证窗口内文字对比度 */
:root[data-theme="dark"] .app-window {
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.88), rgba(248, 250, 252, 0.82));
}

/* 跟随鼠标的高光眩光 */
.app-window::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  background: radial-gradient(20rem circle at var(--gx, 72%) var(--gy, 18%), rgba(255, 255, 255, 0.24), transparent 62%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.app-window[data-tilt="hover"]::after {
  opacity: 1;
}

html.reduced-motion .app-window {
  transform: none;
}

.aw__topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: 3.1rem;
  padding: 0 0.9rem;
  border-bottom: 1px solid #e2e8f0;
  background: rgba(255, 255, 255, 0.55);
}

.aw__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.92rem;
}

.aw__brand img {
  border-radius: 7px;
}

.aw__search {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-inline: auto;
  padding: 0.35rem 0.9rem;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  font-size: 0.78rem;
  color: #94a3b8;
  white-space: nowrap;
}

.aw__tools {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #94a3b8;
}

.aw__kbd {
  padding: 0.12rem 0.45rem;
  border: 1px solid #e2e8f0;
  border-radius: 7px;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #64748b;
}

.aw__rail {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid #eef2f7;
}

.aw__cat {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.75rem;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  color: #475569;
  white-space: nowrap;
}

.aw__cat.is-active {
  border-color: #2563eb;
  box-shadow: 0 0 0 1px #2563eb inset;
  color: #1d4ed8;
}

.aw__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.1rem;
  height: 1.1rem;
  padding-inline: 0.25rem;
  border-radius: 999px;
  background: #2563eb;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  color: #fff;
}

.aw__cat:not(.is-active) .aw__count {
  background: #e2e8f0;
  color: #475569;
}

.aw__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--c, #2563eb);
}

.aw__newcat {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  padding: 0.32rem 0.75rem;
  border: 1px dashed #cbd5e1;
  border-radius: 999px;
  font-size: 0.78rem;
  color: #64748b;
  white-space: nowrap;
}

.aw__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  padding: 0.9rem;
}

.aw__card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.75);
  min-width: 0;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.aw__card.is-selected {
  border-color: #2563eb;
  box-shadow: 0 0 0 1px #2563eb, 0 0 0 4px rgba(37, 99, 235, 0.14);
}

.aw__card header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  color: #64748b;
  min-width: 0;
}

.aw__card header .aw__ctype {
  font-weight: 600;
  color: #334155;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aw__sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #cbd5e1;
  flex: none;
}

.aw__card time {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: #94a3b8;
  white-space: nowrap;
}

.aw__type-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 6px;
  background: #f1f5f9;
  color: #475569;
  flex: none;
}

.aw__thumb svg {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.aw__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #2563eb;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aw__color {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #0f172a;
}

.aw__color-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 5px;
  background: var(--c, #0d9488);
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
}

.aw__text {
  font-size: 0.78rem;
  line-height: 1.5;
  color: #334155;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.aw__card footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: #94a3b8;
}

.aw__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  background: #eff6ff;
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 500;
  color: #1d4ed8;
}

/* ---------- 类型条 ---------- */
.types {
  padding: 0.5rem 0 0;
}

.types__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.type-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.type-chip:hover {
  transform: translateY(-2px);
  border-color: var(--teal);
  box-shadow: var(--shadow-card);
}

.type-chip .icon {
  color: var(--teal);
}

/* ---------- 区块骨架 ---------- */
.section {
  padding: clamp(3.5rem, 9vh, 6rem) 0;
}

.section--intro {
  padding-top: clamp(2.5rem, 6vh, 4rem);
}

.section--tight {
  padding-top: clamp(2rem, 5vh, 3rem);
}

.section__head {
  max-width: 44rem;
  margin-inline: auto;
  margin-bottom: clamp(2rem, 5vh, 3rem);
  text-align: center;
}

.section__head--left {
  margin-inline: 0;
  text-align: left;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.32rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
}

.eyebrow::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--blue);
}

.eyebrow .icon {
  color: var(--teal);
}

.section__title {
  margin-top: 1rem;
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  letter-spacing: -0.02em;
}

.section__lede {
  margin-top: 1rem;
  font-size: 1.02rem;
  color: var(--muted);
}

/* ---------- 数据行 ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
  overflow: hidden;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.4rem 1.5rem;
  background: var(--card);
}

.stat__num {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}

.stat__num em {
  font-style: normal;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  margin-left: 0.15rem;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

/* ---------- 功能：剪贴卡片网格 ---------- */
.clips {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.clip {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  grid-column: span 2;
  padding: 1.4rem 1.4rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

/* 悬停 = 应用里的「选中卡片」态 */
.clip:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 1px var(--blue), var(--ring-blue), var(--shadow-card);
  transform: translateY(-2px);
}

.clip--history,
.clip--paste {
  grid-column: span 3;
}

.clip--ocr {
  grid-column: span 3;
  grid-row: span 2;
}

.clips .clip:nth-last-child(2),
.clips .clip:nth-last-child(1) {
  grid-column: span 3;
}

.clip__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.clip__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 11px;
  background: color-mix(in srgb, var(--a, var(--blue)) 11%, var(--card));
  color: var(--a, var(--blue));
  flex: none;
}

.clip__icon[data-accent="history"] {
  --a: var(--accent-history);
}

.clip__icon[data-accent="link"] {
  --a: var(--accent-link);
}

.clip__icon[data-accent="image"] {
  --a: var(--accent-image);
}

.clip__icon[data-accent="color"] {
  --a: var(--accent-color);
}

.clip__icon[data-accent="text"] {
  --a: var(--accent-text);
}

.clip__icon[data-accent="violet"] {
  --a: var(--accent-violet);
}

.clip__icon[data-accent="amber"] {
  --a: var(--accent-amber);
}

.clip__icon {
  transition: transform 0.2s var(--ease);
}

.clip:hover .clip__icon,
.pcard:hover .clip__icon {
  transform: scale(1.07);
}

.clip__kind {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  opacity: 0.75;
}

.clip h3 {
  font-size: 1.12rem;
  font-weight: 650;
}

.clip p {
  font-size: 0.92rem;
  color: var(--muted);
}

.clip__badge {
  position: absolute;
  top: -0.7rem;
  left: 1.2rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background: var(--teal);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--teal) 35%, transparent);
}

:root[data-theme="dark"] .clip__badge {
  color: #042f2e;
}

/* 历史卡片内的迷你列表 */
.clip__demo {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.4rem;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-soft);
}

.mini-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  font-size: 0.8rem;
  color: var(--ink);
  min-width: 0;
}

.mini-row > span:not(.mini-ic) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mini-row time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  white-space: nowrap;
}

.mini-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 7px;
  background: color-mix(in srgb, var(--a, var(--blue)) 11%, var(--card));
  color: var(--a, var(--blue));
  flex: none;
}

.mini-ic[data-accent="image"] {
  --a: var(--accent-image);
}

.mini-ic[data-accent="link"] {
  --a: var(--accent-link);
}

.mini-ic[data-accent="color"] {
  --a: var(--accent-color);
}

.mini-ic[data-accent="text"] {
  --a: var(--accent-text);
}

.swatch {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 4px;
  background: var(--c, var(--teal));
}

/* OCR 迷你演示 */
.ocr-mini {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.ocr-mini__img {
  position: relative;
  height: 7.5rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #dbeafe, #e0f2fe);
  overflow: hidden;
}

:root[data-theme="dark"] .ocr-mini__img {
  background: linear-gradient(135deg, #16233f, #122b3f);
}

.ocr-box {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--w);
  padding: 0.18rem 0.4rem;
  border: 1.5px dashed var(--teal);
  border-radius: 6px;
  background: color-mix(in srgb, var(--sel-bg) 55%, transparent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--sel-ink);
  white-space: nowrap;
  overflow: hidden;
}

.ocr-mini__modes {
  display: inline-flex;
  gap: 0.35rem;
}

.ocr-mini__modes span {
  padding: 0.2rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.ocr-mini__modes .is-on {
  border-color: var(--teal);
  color: var(--teal);
  background: color-mix(in srgb, var(--teal) 9%, var(--card));
}

/* 键帽流程行 */
.kbd-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.cap-arrow {
  color: var(--muted);
}

.kbd-row__note {
  margin-left: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

/* 悬停时键帽按下：⌘⇧V 先按，↵ 后按 */
.clip--paste:hover .kbd-row .cap:nth-child(1) {
  animation: press 0.5s var(--ease);
}

.clip--paste:hover .kbd-row .cap:nth-child(3) {
  animation: press 0.5s var(--ease) 0.3s;
}

@keyframes press {
  40% {
    transform: translateY(2px);
    border-bottom-width: 1px;
  }
}

/* ---------- OCR 聚光 ---------- */
.ocr__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.ocr__copy .section__title,
.privacy__copy .section__title {
  margin-top: 1rem;
}

.ocr__points {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.ocr__points li {
  display: flex;
  gap: 0.85rem;
}

.ocr__point-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--teal);
  flex: none;
}

.ocr__points strong {
  display: block;
  font-size: 0.95rem;
}

.ocr__points span:not(.ocr__point-ic) {
  font-size: 0.88rem;
  color: var(--muted);
}

.ocr-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.ocr-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
}

.ocr-card__type {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}

.ocr-card__mode {
  padding: 0.18rem 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--teal) 10%, var(--card));
  border: 1px solid var(--teal);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal);
}

.ocr-card__canvas {
  position: relative;
  height: clamp(13rem, 26vw, 17rem);
  background: linear-gradient(135deg, #dbeafe, #e0f2fe 55%, #ccfbf1);
  overflow: hidden;
}

:root[data-theme="dark"] .ocr-card__canvas {
  background: linear-gradient(135deg, #16233f, #122b3f 55%, #0e2e2b);
}

.ocr-word {
  position: absolute;
  left: var(--x);
  top: var(--y);
  min-width: var(--w);
  padding: 0.3rem 0.55rem;
  border: 1.5px dashed transparent;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, 1.4vw, 0.95rem);
  color: rgba(51, 65, 85, 0.45);
  white-space: nowrap;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

:root[data-theme="dark"] .ocr-word {
  color: rgba(147, 165, 192, 0.4);
}

.ocr-word.is-on {
  border-color: var(--teal);
  background: color-mix(in srgb, var(--sel-bg) 60%, transparent);
  color: var(--sel-ink);
}

.ocr-scanline {
  position: absolute;
  inset: 0 auto 0 -8%;
  width: 3px;
  background: var(--teal);
  box-shadow: 0 0 18px 2px color-mix(in srgb, var(--teal) 55%, transparent);
  opacity: 0;
}

.ocr-card__canvas.is-scanning .ocr-scanline {
  animation: scan 1.4s var(--ease) forwards;
}

@keyframes scan {
  0% {
    opacity: 1;
    transform: translateX(0);
  }

  90% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateX(min(40rem, 96vw));
  }
}

.ocr-card__out {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  background: var(--card-soft);
}

.ocr-card__out .icon {
  color: var(--teal);
}

/* ---------- 三步流程 ---------- */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.steps::before {
  content: "";
  position: absolute;
  top: 3.4rem;
  left: 10%;
  right: 10%;
  border-top: 2px dashed var(--line-strong);
}

.step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
}

.step__no {
  position: absolute;
  top: 1.2rem;
  right: 1.3rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  opacity: 0.7;
}

.step__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 12px;
  background: var(--blue-tint);
  color: var(--blue);
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 650;
}

.step p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 隐私 ---------- */
.privacy__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.privacy__cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pcard {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 1rem;
  row-gap: 0.25rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

.pcard:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 1px var(--blue), var(--ring-blue), var(--shadow-card);
  transform: translateY(-2px);
}

.pcard .clip__icon {
  grid-row: span 2;
  align-self: center;
}

.pcard h3 {
  font-size: 1.05rem;
  font-weight: 650;
  align-self: end;
}

.pcard p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 跨平台 ---------- */
.platform {
  padding-top: 0;
}

.platform__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.platform__grid .pcard {
  grid-template-columns: auto;
  grid-template-rows: auto auto auto;
  row-gap: 0.5rem;
}

.platform__grid .pcard .clip__icon {
  grid-row: auto;
}

/* ---------- 下载 ---------- */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.dl-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 1.5rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  text-align: center;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

.dl-card:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 1px var(--blue), var(--ring-blue), var(--shadow-card);
  transform: translateY(-2px);
}

.dl-card .icon--lg {
  color: var(--ink);
  margin-bottom: 0.3rem;
}

.dl-card h3 {
  font-size: 1.05rem;
  font-weight: 650;
}

.dl-card__meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
}

.dl-card__badge {
  display: none;
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.22rem 0.8rem;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

:root[data-theme="dark"] .dl-card__badge {
  color: #0a1122;
}

.dl-card[data-recommended="true"] {
  border-color: var(--blue);
  box-shadow: 0 0 0 1px var(--blue), var(--ring-blue);
}

.dl-card[data-recommended="true"] .dl-card__badge {
  display: inline-flex;
}

.dl-card__go {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--blue);
}

.dl-card__go .icon {
  transition: transform 0.18s var(--ease);
}

.dl-card:hover .dl-card__go .icon {
  transform: translateX(3px);
}

.dl-foot {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.dl-foot a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 反馈 ---------- */
.feedback__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  align-items: start;
  gap: clamp(2rem, 5vw, 4rem);
}

.feedback__form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-card);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field--honey {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.field__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

.field input[type="email"],
.field textarea {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card-soft);
  font-size: 0.92rem;
  color: var(--ink);
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
  resize: vertical;
}

.field input[type="email"]:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 18%, transparent);
}

.field ::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.seg label {
  cursor: pointer;
}

.seg input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.seg span {
  display: inline-flex;
  padding: 0.35rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background-color 0.15s var(--ease);
}

.seg input:checked + span {
  border-color: var(--blue);
  background: var(--blue-tint);
  color: var(--blue);
}

.seg input:focus-visible + span {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.feedback__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.feedback__status {
  font-size: 0.85rem;
  color: var(--muted);
}

.feedback__status[data-state="ok"] {
  color: var(--teal);
}

.feedback__status[data-state="err"] {
  color: #dc2626;
}

:root[data-theme="dark"] .feedback__status[data-state="err"] {
  color: #f87171;
}

/* ---------- FAQ ---------- */
.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 46rem;
  margin-inline: auto;
}

.qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  transition: border-color 0.18s var(--ease);
}

.qa[open] {
  border-color: var(--line-strong);
}

.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  list-style: none;
}

.qa summary::-webkit-details-marker {
  display: none;
}

.qa summary .icon {
  color: var(--muted);
  transition: transform 0.2s var(--ease);
}

.qa[open] summary .icon {
  transform: rotate(180deg);
}

.qa__body {
  padding: 0 1.25rem 1.1rem;
}

.qa[open] .qa__body {
  animation: qa-in 0.28s var(--ease);
}

@keyframes qa-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

.qa__body p {
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 3rem;
  background: var(--card-soft);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
  text-align: center;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.footer__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.footer__ver {
  padding: 0.12rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.3rem 1.25rem;
}

.footer__links a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.15s var(--ease);
}

.footer__links a:hover {
  color: var(--ink);
}

.footer__made {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  opacity: 0.8;
}

/* ---------- 滚动揭示 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
  transition-delay: calc(var(--i, 0) * 60ms);
}

html.js [data-reveal].in {
  opacity: 1;
  transform: none;
}

html.reduced-motion [data-reveal] {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .nav__links {
    display: none;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 2.75rem;
  }

  .hero__stage {
    max-width: 38rem;
  }

  .clips {
    grid-template-columns: 1fr 1fr;
  }

  .clip,
  .clip--history,
  .clip--paste,
  .clip--ocr,
  .clips .clip:nth-last-child(2),
  .clips .clip:nth-last-child(1) {
    grid-column: span 1;
    grid-row: auto;
  }

  .ocr__inner,
  .privacy__inner,
  .feedback__inner {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .stat-row {
    grid-template-columns: 1fr 1fr;
  }

  .platform__grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .steps::before {
    display: none;
  }
}

@media (max-width: 640px) {
  .clips {
    grid-template-columns: 1fr;
  }

  .dl-grid {
    grid-template-columns: 1fr;
  }

  .stat {
    padding: 1.1rem 1.15rem;
  }

  .stat__num {
    font-size: 1.7rem;
  }

  .hero__cta .btn {
    flex: 1 1 100%;
  }

  .aw__search {
    display: none;
  }

  .aw__grid {
    grid-template-columns: 1fr;
  }

  .nav__actions .btn {
    display: none;
  }

  .footer__links {
    gap: 0.3rem 0.9rem;
  }
}

/* ---------- 降级 ---------- */
html.reduced-motion *,
html.reduced-motion *::before,
html.reduced-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}