/* ai.lemongir.shop 落地页 v7 — 品牌红 + Apple 设计语言
   要点: SF Pro 排版驱动 / 苹果中性灰阶 / 红色仅压强调位 /
         玻璃拟态导航 / 极淡分层阴影 / 大留白节奏 */

:root{
  /* 品牌红 (保留 FleetView 基线) */
  --red:#f5333f;--red-deep:#d81f2c;--red-lift:#ff5b52;
  --red-tint:rgba(245,51,63,.08);

  /* Apple 中性阶 */
  --bg:#f5f5f7;--card:#fff;--card-soft:#f5f5f7;
  --ink:#1d1d1f;--ink-2:#424245;--muted:#6e6e73;--faint:#86868b;
  --line:#d2d2d7;--hair:#e8e8ed;

  --green:#1d9e4b;--amber:#d97706;

  --r-xl:28px;--r-lg:20px;--r-md:14px;--r-sm:10px;--r-pill:980px;
  --sh-1:0 2px 8px rgba(0,0,0,.04);
  --sh-2:0 4px 20px rgba(0,0,0,.07);
  --sh-3:0 12px 40px rgba(0,0,0,.11);

  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","PingFang SC",sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,monospace;

  --ease:cubic-bezier(.32,.72,0,1);
}
[data-theme=dark]{
  --red:#ff5865;--red-deep:#f5333f;--red-lift:#ff7b7b;
  --red-tint:rgba(255,88,101,.14);

  --bg:#000;--card:#1d1d1f;--card-soft:#2c2c2e;
  --ink:#f5f5f7;--ink-2:#d1d1d6;--muted:#a1a1a6;--faint:#8e8e93;
  --line:#38383a;--hair:#2c2c2e;

  --green:#30d158;--amber:#ffd60a;

  --sh-1:0 2px 8px rgba(0,0,0,.3);
  --sh-2:0 4px 20px rgba(0,0,0,.45);
  --sh-3:0 12px 40px rgba(0,0,0,.6);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:17px;line-height:1.47;letter-spacing:-.022em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  font-feature-settings:"tnum" 1;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::selection{background:var(--red-tint)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(0,0,0,.22);border-radius:8px;border:2px solid transparent;background-clip:content-box}
[data-theme=dark] ::-webkit-scrollbar-thumb{background:rgba(255,255,255,.22);background-clip:content-box}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:6px}

/* 1260px = Apple 官网页面容器宽度 (内容区 ~1024 + 两侧留白) */
.wrap{max-width:1260px;margin:0 auto;padding:0 32px}
/* 叙事型窄栏: Hero / 区块标题用, 保证 34ch 左右的舒适阅读宽 */
.narrow{max-width:1024px;margin:0 auto}
.mono{font-family:var(--mono);font-feature-settings:"tnum" 1}
.ellip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 玻璃拟态导航 ============ */
.nav{position:sticky;top:0;z-index:90;height:52px;
  background:rgba(245,245,247,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.07)}
[data-theme=dark] .nav{background:rgba(0,0,0,.66);border-bottom-color:rgba(255,255,255,.1)}
.nav-in{max-width:1260px;margin:0 auto;padding:0 32px;height:100%;display:flex;align-items:center;gap:8px}
.wordmark{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:600;letter-spacing:-.028em}
.wordmark svg{display:block;flex:none;border-radius:7px}
.nav nav{margin-left:auto;display:flex;gap:4px}
.nav nav a{padding:6px 12px;border-radius:var(--r-sm);font-size:14px;font-weight:400;color:var(--ink);opacity:.82;
  transition:opacity .2s,background .2s}
.nav nav a:hover{opacity:1;background:rgba(0,0,0,.05)}
[data-theme=dark] .nav nav a:hover{background:rgba(255,255,255,.09)}
.nav-act{display:flex;align-items:center;gap:8px;margin-left:12px}

.btn{border:0;cursor:pointer;font-weight:500;font-size:15px;letter-spacing:-.01em;
  border-radius:var(--r-pill);padding:9px 20px;display:inline-flex;align-items:center;gap:6px;
  transition:background .2s,transform .2s var(--ease),box-shadow .3s var(--ease)}
.btn-sm{font-size:14px;padding:6px 15px}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-deep);transform:scale(1.02)}
.btn-ghost{background:rgba(0,0,0,.05);color:var(--ink)}
.btn-ghost:hover{background:rgba(0,0,0,.09)}
[data-theme=dark] .btn-ghost{background:rgba(255,255,255,.11)}
[data-theme=dark] .btn-ghost:hover{background:rgba(255,255,255,.17)}
.btn-lg{font-size:17px;padding:13px 30px}
.btn-white{background:#fff;color:#1d1d1f}
.btn-white:hover{background:#f0f0f2;transform:scale(1.02)}
.theme-toggle{width:32px;height:32px;border-radius:50%;border:0;background:rgba(0,0,0,.05);
  cursor:pointer;display:grid;place-items:center;color:var(--muted);transition:background .2s,color .2s}
.theme-toggle:hover{background:rgba(0,0,0,.1);color:var(--ink)}
[data-theme=dark] .theme-toggle{background:rgba(255,255,255,.11)}
[data-theme=dark] .theme-toggle:hover{background:rgba(255,255,255,.18)}
.theme-toggle svg{width:15px;height:15px}

/* ============ 区块节奏 ============ */
.sec{padding:96px 0}
.sec-tight{padding:64px 0}
.sec-head{margin-bottom:48px;max-width:36ch}
.eyebrow{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--red);margin-bottom:10px}
.sec-head h2{font-size:44px;font-weight:600;letter-spacing:-.03em;line-height:1.1}
.sec-head p{font-size:19px;color:var(--muted);margin-top:14px;letter-spacing:-.02em;line-height:1.42}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;max-width:40ch}

/* ============ Hero ============ */
/* 两栏: 左文案(左对齐) + 右实时调用卡; 数据条横贯下方 */
.hero{padding:88px 0 28px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);
  gap:64px 72px;align-items:center}
.hero h1{font-size:64px;font-weight:600;letter-spacing:-.035em;line-height:1.05;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .lede{font-size:20px;color:var(--muted);letter-spacing:-.02em;line-height:1.45;
  max-width:30ch;margin:0 0 32px}
.hero .lede code{font-family:var(--mono);font-size:17px;color:var(--ink);
  background:rgba(0,0,0,.05);padding:2px 7px;border-radius:6px;letter-spacing:0}
[data-theme=dark] .hero .lede code{background:rgba(255,255,255,.1)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.hero-note{font-size:13px;color:var(--faint);letter-spacing:-.01em}

/* 状态药丸 */
.pill{display:inline-flex;align-items:center;gap:7px;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--card);box-shadow:var(--sh-1);font-size:13px;font-weight:500;color:var(--ink-2);
  letter-spacing:-.01em;margin-bottom:26px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none;
  box-shadow:0 0 0 3px rgba(29,158,75,.16);animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{0%,100%{box-shadow:0 0 0 3px rgba(29,158,75,.16)}50%{box-shadow:0 0 0 5px rgba(29,158,75,.05)}}

/* 数据条: 横贯 hero 两栏之下 */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border-radius:var(--r-md);overflow:hidden;grid-column:1 / -1}
.stats .s{background:var(--bg);padding:22px 16px;text-align:center}
.stats .v{font-size:34px;font-weight:600;letter-spacing:-.035em;line-height:1;display:block}
.stats .v small{font-size:19px;font-weight:500;color:var(--faint)}
.stats .k{font-size:13px;color:var(--muted);margin-top:7px;letter-spacing:-.01em;display:block}

/* ============ 实时监控卡 ============ */
/* hero 右栏子项: 填满 480px 列, 垂直居中 */
.monitor{background:var(--card);border-radius:var(--r-xl);box-shadow:var(--sh-2);overflow:hidden;
  width:100%;text-align:left;align-self:center}
.mon-head{display:flex;align-items:center;gap:8px;padding:16px 20px;border-bottom:1px solid var(--hair)}
.mon-head .t{font-size:15px;font-weight:600;letter-spacing:-.02em}
.mon-head .sp{margin-left:auto;font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--green)}
.feed{padding:6px 12px}
.feed-row{display:flex;align-items:center;gap:11px;padding:9px;border-radius:var(--r-sm);
  animation:slidein .45s var(--ease)}
@keyframes slidein{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.feed-row .mdot{width:6px;height:6px;border-radius:50%;flex:none}
.feed-row .model{flex:1;min-width:0;font-family:var(--mono);font-size:12.5px;letter-spacing:0}
.feed-row .stx{font-family:var(--mono);font-size:11px;font-weight:600;width:36px;text-align:center;
  border-radius:6px;padding:2px 0;letter-spacing:0}
.feed-row .stx.ok{color:var(--green);background:rgba(29,158,75,.1)}
.feed-row .stx.warn{color:var(--amber);background:rgba(217,119,6,.12)}
.feed-row .ms,.feed-row .tk{font-family:var(--mono);font-size:11.5px;color:var(--faint);
  width:46px;text-align:right;letter-spacing:0}
.mon-chart{padding:14px 20px 16px;border-top:1px solid var(--hair)}
.mon-chart .cap{font-size:11.5px;color:var(--faint);margin-top:8px;letter-spacing:-.01em}

/* ============ 模型矩阵 ============ */
.mgrid{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr))}
.mcard{background:var(--card);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.mcard:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.mc-top{display:flex;align-items:center;gap:9px;margin-bottom:6px;flex-wrap:wrap}
.mcard h3{font-size:19px;font-weight:600;letter-spacing:-.024em}
.mcard .desc{font-size:14px;color:var(--muted);letter-spacing:-.014em;line-height:1.45;margin-bottom:20px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.chip{font-family:var(--mono);font-size:11.5px;padding:5px 9px;border-radius:7px;
  background:var(--card-soft);color:var(--ink-2);letter-spacing:0}
.tag{font-size:11px;font-weight:600;padding:3px 9px;border-radius:var(--r-pill);letter-spacing:-.005em}
.tag.red{background:var(--red-tint);color:var(--red-deep)}
[data-theme=dark] .tag.red{color:var(--red)}
.tag.gray{background:var(--card-soft);color:var(--muted)}

/* ============ 代码 ============ */
/* 两栏: 1260px 容器下每卡 ~590px, 远超最长代码行 384px, 不再横向溢出 */
.codegrid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
/* cURL 示例行最长, 单独占满一行 */
.codecard.wide{grid-column:1 / -1}
/* min-width:0 必需: grid/flex 子项默认 min-width:auto, 会被 max-content 的代码撑破 */
.codecard{background:var(--card);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;min-width:0}
.cc-head{display:flex;align-items:center;padding:13px 18px;border-bottom:1px solid var(--hair)}
.cc-head .lang{font-size:14px;font-weight:600;letter-spacing:-.018em}
.copy-btn{margin-left:auto;border:0;background:transparent;color:var(--muted);cursor:pointer;
  font-size:12.5px;font-weight:500;padding:4px 10px;border-radius:var(--r-pill);
  transition:background .2s,color .2s}
.copy-btn:hover{background:rgba(0,0,0,.05);color:var(--ink)}
[data-theme=dark] .copy-btn:hover{background:rgba(255,255,255,.1)}
.copy-btn.done{color:var(--green)}
.codecard pre{margin:0;padding:20px 22px;background:#1d1d1f;overflow-x:auto;flex:1;
  -webkit-overflow-scrolling:touch}
[data-theme=dark] .codecard pre{background:#000}
/* code 不设宽度: 由 pre 的 overflow-x 承担滚动。设 max-content 会主动撑破祖先 */
.codecard code{font-family:var(--mono);font-size:12.5px;line-height:1.75;color:#e8e8ed;
  white-space:pre;letter-spacing:0;display:inline-block}
.codecard .k{color:#ff7b7b}.codecard .s{color:#a8e5a8}
.codecard .c{color:#8e8e93}.codecard .f{color:#7ac7ff}

/* ============ 特性 ============ */
/* 四栏在 1260px 下每栏正文仅 ~250px, 仍偏窄 → 两栏两行, 正文约 520px */
.fgrid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
.fcard{background:var(--card);border-radius:var(--r-lg);padding:30px 32px;box-shadow:var(--sh-1);
  display:flex;gap:20px;align-items:flex-start}
.fcard .ft{flex:1;min-width:0}
.fcard .fi{width:30px;height:30px;color:var(--red);flex:none;margin-top:2px}
.fcard .fi svg{width:100%;height:100%}
.fcard h3{font-size:19px;font-weight:600;letter-spacing:-.024em;margin-bottom:8px}
.fcard p{font-size:15px;color:var(--muted);letter-spacing:-.016em;line-height:1.52}

/* ============ 运行状况 bento ============ */
.bento{display:grid;gap:20px;grid-template-columns:repeat(12,minmax(0,1fr))}
.card{background:var(--card);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:16px;min-width:0}
.card-head{display:flex;align-items:center;gap:9px}
.card-head h3{font-size:16px;font-weight:600;letter-spacing:-.022em}
.card-head .sp{margin-left:auto;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.card-head .note{font-size:12.5px;color:var(--faint)}
.c4{grid-column:span 4}.c5{grid-column:span 5}
.c7{grid-column:span 7}.c8{grid-column:span 8}

/* 红色锚点卡 — 单一实色, 不堆渐变 */
.redcard{grid-column:span 4;border-radius:var(--r-lg);padding:28px;color:#fff;
  background:linear-gradient(165deg,var(--red-lift),var(--red) 58%,var(--red-deep));
  display:flex;flex-direction:column;box-shadow:0 8px 28px -8px rgba(245,51,63,.42)}
.redcard .rc-k{font-size:14px;font-weight:500;opacity:.92;letter-spacing:-.014em}
.redcard .rc-v{font-size:44px;font-weight:600;letter-spacing:-.04em;line-height:1;margin:auto 0 6px;
  font-variant-numeric:tabular-nums}
.redcard .rc-s{font-size:13px;opacity:.8;letter-spacing:-.01em}
.redcard .gauge{width:88px;height:88px;margin-top:16px}

canvas{display:block;width:100%}
.gauge{position:relative;flex:none}

/* 渠道行 */
.svc{display:flex;align-items:center;gap:13px;padding:11px 0}
.svc+.svc{border-top:1px solid var(--hair)}
.svc-ic{width:32px;height:32px;border-radius:var(--r-sm);background:var(--card-soft);
  display:grid;place-items:center;color:var(--muted);flex:none}
.svc-ic svg{width:16px;height:16px}
.svc-main{flex:1;min-width:0}
.svc-main .nm{font-size:14.5px;font-weight:500;letter-spacing:-.018em}
.track{height:4px;background:var(--card-soft);border-radius:var(--r-pill);margin-top:8px;overflow:hidden}
.fill{height:100%;border-radius:var(--r-pill);background:var(--red);
  transition:width .8s var(--ease)}
.svc-pct{font-family:var(--mono);font-size:12.5px;color:var(--muted);width:42px;text-align:right;letter-spacing:0}
.badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:var(--r-pill);letter-spacing:-.005em}
.badge.ok{background:rgba(29,158,75,.1);color:var(--green)}
.badge.red{background:var(--red-tint);color:var(--red-deep)}
[data-theme=dark] .badge.red{color:var(--red)}
.badge.gray{background:var(--card-soft);color:var(--muted)}

/* ============ 底部 CTA ============ */
/* box-sizing 已全局 border-box, 但内部文本需独立窄栏避免超长行 */
.cta{padding:104px 40px;text-align:center;background:var(--ink);border-radius:var(--r-xl);
  margin:40px 0;position:relative;overflow:hidden}
.cta-in{max-width:640px;margin:0 auto;position:relative}
[data-theme=dark] .cta{background:#1d1d1f}
/* 光晕装饰: 用 max-width 约束, 避免在窄屏撑出 scrollWidth */
.cta::before{content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);
  width:min(560px,100%);height:400px;pointer-events:none;
  background:radial-gradient(ellipse,rgba(245,51,63,.5),transparent 66%)}
.cta h2{font-size:44px;font-weight:600;letter-spacing:-.032em;line-height:1.1;color:#f5f5f7;
  position:relative;margin-bottom:14px}
.cta p{font-size:19px;color:rgba(245,245,247,.72);letter-spacing:-.02em;margin-bottom:32px;position:relative}
.cta .btn{position:relative}

/* ============ Footer ============ */
footer{padding:40px 0 56px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--faint);letter-spacing:-.01em}
footer .sp{margin-left:auto;display:flex;gap:20px;flex-wrap:wrap}
footer a:hover{color:var(--ink)}

/* ============ 响应式 ============ */
/* ---- 平板横向 / 窄桌面 ---- */
@media(max-width:1100px){
  .wrap,.nav-in{padding:0 26px}
  .mgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero{gap:48px}
  .hero h1{font-size:52px}
  .sec-head h2,.cta h2{font-size:38px}
}
/* ---- 平板竖向 ---- */
@media(max-width:900px){
  .codegrid,.fgrid{grid-template-columns:minmax(0,1fr)}
  .codecard.wide{grid-column:auto}
  /* 窄屏回退单列: 文案在上, 监控卡居中在下 */
  .hero{grid-template-columns:minmax(0,1fr);gap:44px;padding:56px 0 20px}
  .monitor{max-width:520px;margin:0 auto}
  .hero h1{font-size:46px}
  .c4,.c5,.c7,.c8,.redcard{grid-column:span 12}
  .cta{padding:88px 32px}
}
/* ---- 手机 ---- */
@media(max-width:620px){
  .wrap,.nav-in{padding:0 20px}
  .sec{padding:64px 0}.sec-tight{padding:44px 0}
  .hero{padding:48px 0 12px}
  .hero h1{font-size:40px;letter-spacing:-.028em}
  .hero .lede{font-size:18px}
  .sec-head{margin-bottom:32px}
  .sec-head h2,.cta h2{font-size:30px}
  .sec-head p{font-size:17px}
  .mgrid{grid-template-columns:minmax(0,1fr)}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  /* 手机端：导航 7 个标签压成一行全部可见（紧凑尺寸 + 可横向微调） */
  .nav-in{flex-wrap:wrap;gap:6px;padding:9px 14px 7px;height:auto;min-height:0}
  .nav{height:auto}
  .wordmark{flex:0 0 auto;font-size:14.5px;order:1}
  .wordmark svg{width:23px;height:23px}
  .nav-act{flex:0 0 auto;gap:5px;order:2;margin-left:auto}
  .nav-act .btn-sm{padding:5px 10px;font-size:12px;white-space:nowrap}
  .theme-toggle{flex:0 0 auto;width:28px;height:28px}
  .nav nav{order:3;flex:0 0 100%;width:100%;margin-left:0;display:flex;flex-wrap:nowrap;
    gap:3px;overflow-x:auto;padding-top:1px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .nav nav::-webkit-scrollbar{display:none}
  .nav nav a{padding:4px 8px;font-size:12px;white-space:nowrap;flex:0 0 auto;
    background:rgba(0,0,0,.04);border-radius:7px;line-height:1.55;letter-spacing:-.01em}
  [data-theme=dark] .nav nav a{background:rgba(255,255,255,.07)}
  .mcard,.card,.redcard{padding:24px}
  .fcard{padding:24px;flex-direction:column;gap:14px}
  .codecard pre{padding:18px}
  .codecard code{font-size:11.5px}
  .cta{padding:64px 24px;margin:24px 0}
  .cta h2{font-size:29px}
  .stats .v{font-size:29px}
  /* 手机端取消强制换行, 让标题自然折行, 否则单行超出容器 */
  .hero h1 br,.sec-head h2 br,.cta h2 br{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}