/* Dachiver 站点样式(scripts/make-web.mjs 生成;深色主题,与应用一致) */
:root {
  --bg:#16161f; --bg2:#1e1e2e; --panel:#232334; --panel2:#2a2a3d;
  --text:#e8e8f2; --muted:#a2a2b8; --accent:#4fc3f7; --accent2:#2b93c7; --border:#37374e;
  --radius:12px; --shadow:0 12px 40px rgba(0,0,0,0.45);
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { background:var(--bg); color:var(--text); font-family:"Segoe UI","Microsoft YaHei",sans-serif; line-height:1.7; }
a { color:var(--accent); text-decoration:none; }
a:hover { text-decoration:underline; }
img { max-width:100%; }
/* 内联 SVG 图标对齐 */
svg.icon { vertical-align:-0.18em; }
.cta a svg.icon { margin-right:8px; }
.badge svg.icon { margin-right:4px; }
/* 键盘可达性:焦点环 */
a:focus-visible, button:focus-visible, input:focus-visible, .doc-cat:focus-visible, .doc-entry:focus-visible {
  outline:2px solid var(--accent); outline-offset:2px; border-radius:4px;
}

/* ---------- 导航(毛玻璃 sticky;文字链为主 + 一个实心主按钮) ---------- */
.top {
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; gap:20px; flex-wrap:wrap;
  padding:12px 24px;
  background:rgba(22,22,31,0.78);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.top .brand { font-size:19px; font-weight:700; color:var(--text); }
.top .brand:hover { text-decoration:none; color:var(--accent); }
.top .links { display:flex; gap:16px; flex-wrap:wrap; align-items:center; margin-left:auto; }
.top .links a { color:var(--muted); font-size:14px; }
.top .links a:hover, .top .links a.active { color:var(--accent); text-decoration:none; }
/* 导航下划线生长动画(实心按钮除外) */
.top .links a:not(.btn-nav) { position:relative; }
.top .links a:not(.btn-nav)::after {
  content:''; position:absolute; left:0; right:0; bottom:-4px; height:2px;
  background:var(--accent); transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.top .links a:not(.btn-nav):hover::after, .top .links a.active::after { transform:scaleX(1); }
.top .links a.btn-nav {
  background:linear-gradient(135deg, var(--accent2), #3a7bd5); color:#fff;
  padding:7px 16px; border-radius:8px; font-weight:600;
  box-shadow:0 4px 16px rgba(43,147,199,0.30);
}
.top .links a.btn-nav:hover { color:#fff; text-decoration:none; filter:brightness(1.12); }
.top .sep { width:1px; height:16px; background:var(--border); }

.wrap { max-width:1080px; margin:0 auto; padding:48px 22px 64px; }
section { margin-bottom:64px; }
h2.sec { font-size:26px; margin-bottom:6px; }
p.sec-sub { color:var(--muted); margin-bottom:24px; }

/* ---------- Hero(底层为 WebGL 网格渐变 + canvas 动态波形;无 WebGL 时回退 aurora 光斑) ---------- */
.hero { position:relative; overflow:hidden; display:grid; grid-template-columns:1fr 1.05fr; gap:40px; align-items:center; padding-top:16px; }
.hero > *:not(canvas) { position:relative; z-index:1; }
/* 两块背景画布上下各探出 12%,为视差位移留出余量 */
.hero-waves, .hero-gl { position:absolute; inset:-12% 0; width:100%; height:124%; z-index:0; pointer-events:none; }
/* aurora 光斑:仅 .no-gl(WebGL 不可用)时显示的回退层 */
.hero::before, .hero::after {
  content:''; display:none; position:absolute; border-radius:50%; filter:blur(100px);
  pointer-events:none; z-index:0;
}
.hero.no-gl::before, .hero.no-gl::after { display:block; }
.hero::before {
  width:420px; height:420px; left:-120px; top:-80px;
  background:radial-gradient(circle, rgba(79,195,247,0.20), transparent 70%);
  animation:aurora-a 26s ease-in-out infinite alternate;
}
.hero::after {
  width:380px; height:380px; right:-100px; bottom:-60px;
  background:radial-gradient(circle, rgba(159,123,255,0.16), transparent 70%);
  animation:aurora-b 32s ease-in-out infinite alternate;
}
@keyframes aurora-a { from { transform:translate(0, 0) scale(1); } to { transform:translate(60px, 30px) scale(1.15); } }
@keyframes aurora-b { from { transform:translate(0, 0) scale(1.1); } to { transform:translate(-50px, -30px) scale(0.95); } }
/* SVG 函数曲线描绘(Hero 后的分隔带,入场时曲线自己「画」出来一次) */
.curve-divider { margin:-20px 0 12px; }
.curve-divider svg { display:block; width:100%; height:56px; }
.curve-divider path {
  fill:none; stroke:var(--accent2); stroke-width:1.5; opacity:.55;
  stroke-dasharray:1; stroke-dashoffset:1;
  transition:stroke-dashoffset 1.4s cubic-bezier(0.16,1,0.3,1);
}
.curve-divider.in path { stroke-dashoffset:0; }

/* ---------- 打字机表达式框(宽度 ch 锁定,打字不换行不抖动,无 CLS) ---------- */
.typed-line {
  display:inline-flex; align-items:center; gap:10px; margin-top:20px;
  background:#12121b; border:1px solid var(--border); border-radius:10px;
  padding:10px 16px; font-family:Consolas,monospace; font-size:15px;
}
.typed-line .typed-label { color:var(--muted); }
.typewriter { display:inline-block; min-width:16ch; color:var(--accent); }
.caret { color:var(--accent); font-weight:300; animation:blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity:0; } }

/* ---------- 统计带(数字计数器 + 粒子连线背景) ---------- */
.stats {
  position:relative; overflow:hidden;
  display:grid; grid-template-columns:repeat(4, 1fr); gap:12px;
  background:var(--panel); border:1px solid var(--border); border-radius:18px;
  padding:36px 28px; text-align:center;
}
.stats-particles { position:absolute; inset:0; width:100%; height:100%; pointer-events:none; }
.stat { position:relative; }
.stat .num { display:block; font-size:34px; font-weight:700; color:var(--accent); font-variant-numeric:tabular-nums; }
.stat .lbl { color:var(--muted); font-size:13.5px; }
.badges { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:18px; }
.badge {
  font-size:12.5px; color:var(--muted);
  border:1px solid var(--border); border-radius:999px; padding:3px 12px;
  background:rgba(255,255,255,0.03);
}
a.badge:hover { color:var(--accent); border-color:var(--accent2); text-decoration:none; }
.hero h1 { font-size:52px; line-height:1.15; letter-spacing:1px; margin-bottom:18px; }
.hero h1 em {
  font-style:normal;
  background:linear-gradient(120deg, var(--accent), #9f7bff, var(--accent));
  background-size:200% auto;
  -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:shine 6s linear infinite;
}
@keyframes shine { to { background-position:200% center; } }
.hero .lead { font-size:17px; color:var(--muted); margin-bottom:28px; max-width:34em; }
.cta { display:flex; gap:14px; flex-wrap:wrap; align-items:center; }
.cta a { display:inline-flex; align-items:center; padding:13px 30px; border-radius:10px; font-size:16px; font-weight:600; }
.cta a:hover { text-decoration:none; transform:translateY(-1px); }
.cta .primary { position:relative; overflow:hidden; background:linear-gradient(135deg, var(--accent2), #3a7bd5); color:#fff; box-shadow:0 6px 24px rgba(43,147,199,0.35); }
/* 主按钮光泽扫过(hover 时一道高光掠过;只动 transform) */
.cta .primary::after {
  content:''; position:absolute; top:0; left:0; width:45%; height:100%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform:translateX(-160%) skewX(-20deg); transition:transform .6s ease;
}
.cta .primary:hover::after { transform:translateX(360%) skewX(-20deg); }
.cta .ghost { border:1px solid var(--border); color:var(--text); background:rgba(255,255,255,0.03); }
.cta .ghost:hover { border-color:var(--accent2); color:var(--accent); }
.micro { color:var(--muted); font-size:13px; margin-top:14px; }
/* 截图套浏览器框 */
.browser {
  border:1px solid var(--border); border-radius:14px; overflow:hidden;
  background:var(--bg2); box-shadow:var(--shadow);
  transform:perspective(1400px) rotateY(-4deg);
}
.browser-bar { display:flex; gap:7px; padding:10px 12px; background:var(--panel); border-bottom:1px solid var(--border); }
.browser-bar i { width:11px; height:11px; border-radius:50%; background:var(--border); }
.browser-bar i:nth-child(1) { background:#ff5f57; }
.browser-bar i:nth-child(2) { background:#febc2e; }
.browser-bar i:nth-child(3) { background:#28c840; }
.browser img { display:block; width:100%; }

/* ---------- 卡片通用(图标在标题上方,Linear 风) ---------- */
.grid3 { display:grid; grid-template-columns:repeat(3, 1fr); gap:16px; }
.card {
  position:relative; overflow:hidden;
  background:var(--panel); border:1px solid var(--border); border-radius:var(--radius);
  padding:22px 22px;
  transition:border-color .2s ease, transform .2s ease;
}
/* 鼠标跟随聚光(--mx/--my 由内联脚本写入) */
.card::before {
  content:''; position:absolute; inset:0; border-radius:inherit; pointer-events:none;
  background:radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(79,195,247,0.10), transparent 45%);
  opacity:0; transition:opacity .3s ease;
}
.card:hover::before { opacity:1; }
.card:hover { border-color:var(--accent2); transform:translateY(-2px); }
.card .ico { display:block; color:var(--accent); margin-bottom:10px; }
.card .ico.plain { color:var(--text); }
.card h3 { font-size:16.5px; margin-bottom:6px; }
.card p { font-size:14px; color:var(--muted); }
.card .go { display:inline-block; margin-top:10px; font-size:14px; }

/* ---------- 画廊(截图为主视觉;每张可一键在应用中打开同场景) ---------- */
.gallery-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.gallery-grid figure {
  background:var(--panel); border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s ease;
}
.gallery-grid figure:hover { border-color:var(--accent2); }
.gallery-grid img { display:block; width:100%; aspect-ratio:16/10; object-fit:cover; object-position:center; transition:transform .45s ease; }
.gallery-grid figure:hover img { transform:scale(1.04); }
.gallery-grid figcaption { display:flex; align-items:center; flex-wrap:wrap; gap:6px; padding:10px 14px; font-size:13px; color:var(--muted); }
.gallery-grid figcaption code { color:var(--accent); }
.gallery-grid .open {
  margin-left:auto; white-space:nowrap; font-size:12.5px;
  border:1px solid var(--border); border-radius:6px; padding:2px 9px; color:var(--accent);
}
.gallery-grid .open:hover { border-color:var(--accent2); background:rgba(79,195,247,0.08); text-decoration:none; }

/* ---------- 图片横幅(自托管 Unsplash 题图 + 深色遮罩,来源见 docs/images/SOURCES.md) ---------- */
.photo-band {
  border-radius:18px; overflow:hidden; border:1px solid var(--border);
  background:
    linear-gradient(115deg, rgba(22,22,31,0.92) 25%, rgba(22,22,31,0.62) 60%, rgba(22,22,31,0.38)),
    url('images/banner-blackboard.jpg') center/cover;
  padding:56px 44px;
}
.photo-band h2 { font-size:28px; margin-bottom:10px; }
.photo-band p { color:#c9c9dc; max-width:36em; margin-bottom:24px; }

/* ---------- CTA 收口带(含低透明度漂浮数学符号) ---------- */
.cta-band {
  position:relative; overflow:hidden;
  text-align:center; padding:48px 24px;
  border-radius:18px;
  background:linear-gradient(135deg, rgba(43,147,199,0.22), rgba(159,123,255,0.14));
  border:1px solid var(--accent2);
}
.cta-band > :not(.float-sym) { position:relative; }
.float-sym {
  position:absolute; pointer-events:none; user-select:none;
  color:rgba(79,195,247,0.10); font-family:Georgia,serif; line-height:1;
  animation:floaty 9s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform:translateY(0) rotate(-5deg); } 50% { transform:translateY(-14px) rotate(5deg); } }
.cta-band h2 { font-size:26px; margin-bottom:8px; }
.cta-band p { color:var(--muted); margin-bottom:22px; }
.cta-band .cta { justify-content:center; }

/* ---------- 面板 / 表格 / 代码 ---------- */
.panel { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:20px 24px; margin:18px 0; }
.panel h2 { font-size:18px; margin-bottom:10px; color:var(--accent); }
.panel ul { padding-left:22px; }
.note { color:var(--muted); font-size:14px; }
h1.page { font-size:34px; margin-bottom:8px; }
p.sub { color:var(--muted); font-size:16px; margin-bottom:28px; }
table.cmp { width:100%; border-collapse:collapse; margin:14px 0; font-size:14.5px; }
table.cmp th, table.cmp td { border:1px solid var(--border); padding:10px 12px; text-align:left; vertical-align:top; }
table.cmp th { background:rgba(79,195,247,0.08); color:var(--accent); }
code { background:rgba(255,255,255,0.06); border-radius:4px; padding:0 5px; font-family:Consolas,monospace; font-size:13px; color:var(--accent); }
pre { background:#12121b; border:1px solid var(--border); border-radius:8px; padding:12px 14px; overflow-x:auto; margin:10px 0; }
pre code { background:none; padding:0; color:var(--text); }

/* ---------- 下载页:渠道卡 / 直链按钮 / 步骤 / 复制按钮 ---------- */
.chan { position:relative; }
.chan .tag {
  position:absolute; top:-10px; right:14px;
  background:var(--accent2); color:#fff; font-size:12px; font-weight:600;
  padding:2px 10px; border-radius:999px;
}
.dl { display:flex; flex-direction:column; gap:8px; margin-top:14px; }
.dl a {
  display:flex; align-items:center; gap:8px;
  border:1px solid var(--border); border-radius:8px; padding:9px 14px;
  font-size:14px; color:var(--text); background:rgba(255,255,255,0.03);
}
.dl a:hover { border-color:var(--accent2); color:var(--accent); text-decoration:none; }
.dl a .sz { margin-left:auto; color:var(--muted); font-size:12px; white-space:nowrap; }
.cmdline { display:flex; align-items:flex-start; gap:10px; }
.cmdline pre { flex:1; margin:10px 0; }
.copybtn {
  margin-top:10px; padding:8px 14px; border-radius:8px;
  border:1px solid var(--border); background:rgba(255,255,255,0.03);
  color:var(--text); font-size:13px; cursor:pointer;
}
.copybtn:hover { border-color:var(--accent2); color:var(--accent); }
ol.steps { list-style:none; counter-reset:step; padding-left:0; }
ol.steps li { counter-increment:step; position:relative; padding:8px 0 8px 44px; }
ol.steps li::before {
  content:counter(step);
  position:absolute; left:0; top:10px;
  width:28px; height:28px; border-radius:50%;
  background:rgba(79,195,247,0.14); color:var(--accent);
  font-size:14px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
}

/* ---------- 手册页 ---------- */
.doc-top { margin-bottom:14px; }
.doc-top input { width:100%; padding:11px 15px; border-radius:10px; border:1px solid var(--border); background:#12121b; color:var(--text); font-size:14px; outline:none; }
.doc-top input:focus { border-color:var(--accent2); }
.doc-grid { display:grid; grid-template-columns:170px 240px 1fr; gap:14px; align-items:start; }
.doc-col { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:10px; max-height:70vh; overflow-y:auto; }
.doc-cat { padding:7px 10px; border-radius:6px; cursor:pointer; font-size:14px; display:flex; justify-content:space-between; color:var(--text); }
.doc-cat:hover { background:rgba(79,195,247,0.08); }
.doc-cat.active { background:var(--accent2); color:#fff; }
.doc-cat .n { color:var(--muted); font-size:12px; }
.doc-cat.active .n { color:#dceefb; }
.doc-entry { padding:7px 10px; border-radius:6px; cursor:pointer; font-size:13.5px; }
.doc-entry:hover { background:rgba(79,195,247,0.08); }
.doc-entry.current { background:rgba(79,195,247,0.16); color:var(--accent); }
.doc-entry .c { display:block; color:var(--muted); font-size:12px; }
.doc-content { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:20px 24px; min-height:40vh; }
.doc-content h3 { color:var(--accent); margin-bottom:10px; font-size:17px; }
.doc-content h3 .anchor { opacity:0; font-size:14px; margin-left:4px; }
.doc-content h3:hover .anchor { opacity:1; }
.doc-content p, .doc-content li { font-size:14.5px; margin:6px 0; }
.doc-content ul, .doc-content ol { padding-left:22px; }
.doc-content b { color:var(--accent); }

/* ---------- 滚动淡入( prefers-reduced-motion 时由脚本直接置 in ) ---------- */
.reveal { opacity:0; transform:translateY(16px); transition:opacity .55s cubic-bezier(0.16,1,0.3,1), transform .55s cubic-bezier(0.16,1,0.3,1); }
.reveal.in { opacity:1; transform:none; }

/* ---------- 页脚 ---------- */
footer { border-top:1px solid var(--border); margin-top:24px; }
.foot-grid {
  max-width:1080px; margin:0 auto; padding:32px 22px 18px;
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:18px;
}
.foot-grid h4 { font-size:14px; color:var(--text); margin-bottom:8px; }
.foot-grid a { display:block; color:var(--muted); font-size:13.5px; padding:2px 0; }
.foot-grid a:hover { color:var(--accent); text-decoration:none; }
.foot-brand { color:var(--muted); font-size:13.5px; }
.foot-bottom { text-align:center; color:var(--muted); font-size:12.5px; padding:0 22px 20px; }

/* ---------- 滚动进度条(顶部 2px 渐变) ---------- */
.scrollbar-progress {
  position:fixed; top:0; left:0; right:0; height:2px; z-index:60;
  background:linear-gradient(90deg, var(--accent2), #9f7bff);
  transform-origin:left; transform:scaleX(0);
}

/* ---------- 网格交错入场(子元素用独立 translate 属性,不与卡片 hover 的 transform 冲突) ---------- */
.stagger > * { opacity:0; translate:0 14px; transition:opacity .5s cubic-bezier(0.16,1,0.3,1), translate .5s cubic-bezier(0.16,1,0.3,1); }
.stagger.in > * { opacity:1; translate:0 0; }

/* ---------- 减弱动态:关掉一切自治动画与过渡(滚动淡入/交错由脚本直接置终态,波形画静态帧) ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation:none !important;
    transition-duration:0.01s !important;
    transition-delay:0s !important;
  }
}

/* ---------- 响应式 ---------- */
@media (max-width:900px) {
  .hero { grid-template-columns:1fr; }
  .hero h1 { font-size:38px; }
  .grid3 { grid-template-columns:1fr; }
  .gallery-grid { grid-template-columns:1fr; }
  .doc-grid { grid-template-columns:1fr; }
  .doc-col { max-height:none; }
  .foot-grid { grid-template-columns:1fr 1fr; }
  .browser { transform:none; }
  .photo-band { padding:36px 24px; }
  .stats { grid-template-columns:1fr 1fr; }
}