/* ==========================================================================
   CueWrie 官网 · 设计系统 v2（美化层）
   在 site.css 原规则之后加载：用更精致的排版 / 渐变 / 玻璃卡片 / 动效覆盖旧观感。
   零依赖：系统字体 + CSS 渐变 + 内联 SVG，不引外部字体与 CDN。
   ========================================================================== */

:root {
  /* 品牌色（与桌面端图标一致：炭黑底 + 珊瑚橙强调 + 冷灰文字） */
  --brand: #ff6b52;
  --brand-soft: rgba(255, 107, 82, 0.14);
  --brand-line: rgba(255, 107, 82, 0.38);
  --ink: #f4f5f7;
  --ink-2: #c9ccd4;
  --ink-3: #8b909c;
  --ink-4: #61656f;

  --surface: #101114;
  --surface-2: #15171b;
  --surface-3: #1b1e24;
  --stroke: rgba(255, 255, 255, 0.08);
  --stroke-2: rgba(255, 255, 255, 0.14);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-xl: 20px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 24px 64px rgba(0, 0, 0, 0.55);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  background:
    radial-gradient(1200px 620px at 12% -8%, rgba(255, 107, 82, 0.16), transparent 60%),
    radial-gradient(900px 520px at 88% 4%, rgba(77, 163, 255, 0.12), transparent 62%),
    var(--surface);
  color: var(--ink);
  font-feature-settings: "ss01", "cv01";
  -webkit-font-smoothing: antialiased;
}

/* ---------- 顶部导航：玻璃条 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(14px) saturate(140%);
  background: rgba(12, 13, 16, 0.72);
  border-bottom: 1px solid var(--stroke);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 66px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  font-size: 17px;
}

.brand-mark img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

.site-header nav a {
  color: var(--ink-3);
  font-size: 13.5px;
  padding: 7px 11px;
  border-radius: 999px;
  text-decoration: none;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.site-header nav a:hover,
.site-header nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
}

/* ---------- 英雄区 ---------- */
.hero {
  position: relative;
  padding: 96px 0 72px;
  overflow: clip;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% -10%;
  height: 420px;
  background: radial-gradient(closest-side, rgba(255, 107, 82, 0.18), transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  background: linear-gradient(180deg, #ffffff 0%, #c8ccd6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--brand), #ffb199);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--ink-2);
  max-width: 62ch;
  line-height: 1.7;
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--brand-line);
  background: var(--brand-soft);
  color: #ffb8a8;
  font-size: 12px;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.16s var(--ease), box-shadow 0.2s var(--ease),
    background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn-primary {
  background: linear-gradient(180deg, #ff8168, var(--brand));
  color: #1a0d0a;
  box-shadow: 0 10px 26px rgba(255, 107, 82, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(255, 107, 82, 0.38);
}

.btn-ghost {
  border-color: var(--stroke-2);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ---------- 卡片 / 网格 ---------- */
.section {
  padding: 66px 0;
}

.section--alt {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
  border-block: 1px solid var(--stroke);
}

.section h2 {
  font-size: clamp(24px, 2.6vw, 34px);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.section .sub {
  color: var(--ink-3);
  max-width: 70ch;
  line-height: 1.75;
  margin-bottom: 34px;
}

.card,
.feature,
.price,
.shot {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-1);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.card:hover,
.feature:hover {
  transform: translateY(-2px);
  border-color: var(--stroke-2);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.5);
}

.feature {
  padding: 22px;
}

.feature h3 {
  font-size: 15.5px;
  margin: 14px 0 8px;
  letter-spacing: -0.01em;
}

.feature p {
  color: var(--ink-3);
  font-size: 13.5px;
  line-height: 1.72;
  margin: 0;
}

.feature .ico {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  color: #ffb8a8;
  font-size: 17px;
}

/* 定价卡 */
.price {
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price.featured {
  border-color: var(--brand-line);
  box-shadow: 0 26px 70px rgba(255, 107, 82, 0.18);
}

.price .amount {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.price ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  color: var(--ink-2);
  font-size: 13.5px;
}

.price ul li::before {
  content: "✓";
  color: var(--ok, #46c07a);
  margin-right: 8px;
}

/* ---------- 手册（manual.html） ---------- */
.manual {
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr);
  gap: 44px;
  align-items: start;
  padding: 40px 0 90px;
}

@media (max-width: 980px) {
  .manual {
    grid-template-columns: 1fr;
  }
}

.manual-toc {
  position: sticky;
  top: 88px;
  padding: 18px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  max-height: calc(100vh - 120px);
  overflow: auto;
}

.manual-toc h2 {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin: 0 0 12px;
}

.manual-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
  display: grid;
  gap: 3px;
}

.manual-toc a {
  display: block;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--ink-3);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  transition: background 0.16s var(--ease), color 0.16s var(--ease);
}

.manual-toc a::before {
  counter-increment: toc;
  content: counter(toc, decimal-leading-zero);
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
  margin-right: 9px;
  font-size: 11px;
}

.manual-toc a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}

.manual-body {
  min-width: 0;
}

.manual-body > section {
  padding: 30px 0 34px;
  border-bottom: 1px solid var(--stroke);
}

.manual-body > section:last-child {
  border-bottom: 0;
}

.manual-body h2 {
  font-size: 26px;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  scroll-margin-top: 92px;
}

.manual-body h2 .num {
  color: var(--brand);
  font-variant-numeric: tabular-nums;
  margin-right: 10px;
  font-size: 20px;
}

.manual-body h3 {
  font-size: 16.5px;
  margin: 26px 0 8px;
  color: var(--ink);
}

.manual-body p,
.manual-body li {
  color: var(--ink-2);
  line-height: 1.82;
  font-size: 14.5px;
}

.manual-body ul,
.manual-body ol {
  padding-left: 22px;
  display: grid;
  gap: 6px;
}

.manual-body code {
  font-family: ui-monospace, "JetBrains Mono", Consolas, monospace;
  font-size: 12.5px;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--stroke);
  color: #ffd9cf;
}

.manual-body pre {
  margin: 14px 0;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: #0b0c0f;
  border: 1px solid var(--stroke);
  overflow: auto;
}

.manual-body pre code {
  background: none;
  border: 0;
  padding: 0;
  color: #d9dde6;
  font-size: 12.5px;
  line-height: 1.7;
}

.manual-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 13.5px;
}

.manual-body th,
.manual-body td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--stroke);
  color: var(--ink-2);
}

.manual-body th {
  color: var(--ink-4);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.manual-body tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* 提示框 */
.callout {
  margin: 16px 0;
  padding: 14px 16px 14px 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--stroke-2);
  background: rgba(255, 255, 255, 0.03);
  position: relative;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.7;
}

.callout::before {
  position: absolute;
  left: 15px;
  top: 13px;
  font-size: 15px;
}

.callout.tip::before {
  content: "💡";
}

.callout.warn {
  border-color: rgba(224, 163, 63, 0.4);
  background: rgba(224, 163, 63, 0.08);
}

.callout.warn::before {
  content: "⚠️";
}

.callout.danger {
  border-color: rgba(224, 86, 79, 0.45);
  background: rgba(224, 86, 79, 0.08);
}

.callout.danger::before {
  content: "🚫";
}

/* 键帽 */
kbd {
  display: inline-block;
  min-width: 22px;
  padding: 2px 7px;
  border-radius: 6px;
  border: 1px solid var(--stroke-2);
  border-bottom-width: 2px;
  background: linear-gradient(180deg, #23262d, #171a1f);
  color: var(--ink);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 11.5px;
  text-align: center;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.4);
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--stroke);
  padding: 34px 0 44px;
  color: var(--ink-4);
  font-size: 12.5px;
}

.site-footer a {
  color: var(--ink-3);
  text-decoration: none;
}

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

/* 滚动进入动画（无 JS 也安全：默认可见，动画仅增强） */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: rise 0.6s var(--ease) both;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 产品截图（真实窗口 + 假标题栏） ---------- */
.shot-frame {
  margin: 0;
  border: 1px solid var(--stroke-2);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #16181d, #0d0e11);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.shot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.hero-shot { transform: perspective(1400px) rotateX(1.2deg); }

.shot-chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.03);
}

.shot-chrome span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2f333b;
}

.shot-chrome span:first-child { background: #ff5f57; }
.shot-chrome span:nth-child(2) { background: #febc2e; }
.shot-chrome span:nth-child(3) { background: #28c840; }

.shot-frame figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--ink-4);
  border-top: 1px solid var(--stroke);
}

.shot-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--stroke);
  background: #0d0e11;
}

@media (max-width: 900px) {
  .hero-shot { transform: none; }
}

/* ---- v3 手册布局 ---- */
.manual {
  grid-template-columns: 232px minmax(0, 1fr);
  gap: 36px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 24px 96px;
}

.manual-body { max-width: 820px; }

.manual-toc {
  top: 84px;
  padding: 16px 14px;
  font-size: 12.5px;
}

.manual-toc a { padding: 6px 9px; }

@media (max-width: 1080px) {
  .manual { grid-template-columns: 1fr; gap: 18px; }
  .manual-toc { position: static; max-height: none; }
  .manual-body { max-width: none; }
}

/* ---- v3 滚动入场 ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s cubic-bezier(.22,.61,.36,1), transform .6s cubic-bezier(.22,.61,.36,1);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}