/* ============================================================
   宝盘落地页 v2 · 样式
   由 lovable 项目 heirloom-keeper-ai 的 src/routes/index.tsx
   + src/styles.css 还原（原生 CSS，零依赖、零图片）
   设计 token 与原项目保持一致（含 oklch 色值与 @utility 等价实现）
   ============================================================ */

:root{
  --background:#08090b;
  --surface:#0f1115;
  --surface-2:#171a21;
  --foreground:oklch(0.95 0.005 260);
  --card:#0f1115;
  --card-foreground:oklch(0.95 0.005 260);
  --popover:#171a21;
  --popover-foreground:oklch(0.95 0.005 260);
  --cobalt:oklch(0.62 0.16 255);
  --amber:oklch(0.8 0.14 70);
  --primary:var(--amber);
  --primary-foreground:#08090b;
  --secondary:#171a21;
  --secondary-foreground:oklch(0.95 0.005 260);
  --muted:#171a21;
  --muted-foreground:oklch(0.66 0.015 260);
  --accent:#171a21;
  --accent-foreground:oklch(0.95 0.005 260);
  --destructive:oklch(0.65 0.2 25);
  --destructive-foreground:oklch(0.98 0 0);
  --border:oklch(1 0 0 / 8%);
  --input:oklch(1 0 0 / 10%);
  --ring:var(--cobalt);
  --radius:0.875rem;
  --font-sans:"Noto Sans SC","Manrope",system-ui,sans-serif;
  --font-display:"Noto Serif SC",serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
ul,ol{list-style:none}
html{scroll-behavior:smooth}
body{
  background-color:var(--background);
  color:var(--foreground);
  font-family:var(--font-sans);
  font-size:15px; line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer}
svg.ic{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- @utility 等价 ---------- */
.glow-amber{box-shadow:0 0 40px -10px color-mix(in oklab, var(--amber) 55%, transparent);}
.glow-cobalt{box-shadow:0 0 40px -12px color-mix(in oklab, var(--cobalt) 55%, transparent);}
.text-gradient{
  background:linear-gradient(120deg, var(--foreground) 30%, var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.grid-bg{
  background-image:
    linear-gradient(oklch(1 0 0 / 3%) 1px, transparent 1px),
    linear-gradient(90deg, oklch(1 0 0 / 3%) 1px, transparent 1px);
  background-size:56px 56px;
}

/* ---------- keyframes ---------- */
@keyframes pulse{50%{opacity:.5}}
.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}
@keyframes flow-x{0%{transform:translateX(-100%)}100%{transform:translateX(300%)}}
.flow-line{position:relative;overflow:hidden}
.flow-line::after{
  content:"";position:absolute;inset:0;width:35%;
  background:linear-gradient(90deg, transparent, var(--cobalt), transparent);
  animation:flow-x 1.8s linear infinite;
}
@keyframes orb-spin{to{transform:rotate(360deg)}}
.orb-ring{animation:orb-spin 3s linear infinite}

/* tw-animate-css 的 animate-in / fade-in / slide-in-from-* / zoom-in-* 等价实现 */
@keyframes twEnter{
  from{
    opacity:var(--tw-enter-opacity,1);
    transform:translate3d(var(--tw-enter-translate-x,0), var(--tw-enter-translate-y,0), 0)
              scale3d(var(--tw-enter-scale,1), var(--tw-enter-scale,1), 1);
  }
}
.animate-in{animation:twEnter var(--tw-duration,150ms) cubic-bezier(.16,1,.3,1) both}
.duration-500{--tw-duration:500ms}
.fade-in{--tw-enter-opacity:0}
.slide-in-from-left-2{--tw-enter-translate-x:-0.5rem}
.slide-in-from-bottom-2{--tw-enter-translate-y:0.5rem}
.slide-in-from-bottom-3{--tw-enter-translate-y:0.75rem}
.zoom-in-95{--tw-enter-scale:.95}

/* ================= Header ================= */
.header{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid var(--border);
  background:color-mix(in oklab, var(--background) 70%, transparent);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
}
.header-inner{
  max-width:80rem;height:4rem;margin:0 auto;padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.logo{display:flex;align-items:center;gap:.5rem}
.logo-mark{
  width:2rem;height:2rem;display:grid;place-items:center;
  border-radius:.5rem;border:1px solid color-mix(in oklab, var(--amber) 40%, transparent);
  background:var(--surface-2);
}
.logo-mark i{width:.75rem;height:.75rem;border-radius:9999px;border:2px solid var(--amber)}
.logo-text{font-family:var(--font-display);font-size:1.125rem;font-weight:700;letter-spacing:.1em}
.nav{display:flex;gap:1.75rem;font-size:.875rem;color:var(--muted-foreground)}
.nav a{transition:color .2s}
.nav a:hover{color:var(--foreground)}
.header-actions{display:flex;align-items:center;gap:.75rem;font-size:.875rem}
.ha-ghost{display:flex;align-items:center;gap:.25rem;color:var(--muted-foreground);transition:color .2s}
.ha-ghost:hover{color:var(--foreground)}
.ha-ghost svg{width:1rem;height:1rem}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9999px;background:var(--primary);color:var(--primary-foreground);
  padding:.5rem 1rem;font-weight:500;font-size:.875rem;transition:opacity .2s;
}
.btn-primary:hover{opacity:.9}

/* ================= Hero ================= */
.hero{position:relative;overflow:hidden}
.orb-glow{position:absolute;pointer-events:none;border-radius:9999px}
.orb-glow.cobalt{top:-10rem;left:25%;width:500px;height:500px;background:color-mix(in oklab, var(--cobalt) 20%, transparent);filter:blur(140px)}
.orb-glow.amber{top:10rem;right:0;width:400px;height:400px;background:color-mix(in oklab, var(--amber) 10%, transparent);filter:blur(140px)}
.hero-inner{
  position:relative;max-width:80rem;margin:0 auto;padding:6rem 1.5rem;
  display:grid;gap:3.5rem;align-items:center;
}
@media (min-width:1024px){.hero-inner{grid-template-columns:1fr 1fr}}

.badge{
  display:inline-flex;align-items:center;gap:.5rem;
  border:1px solid var(--border);background:var(--surface);
  border-radius:9999px;padding:.25rem .75rem;font-size:.75rem;color:var(--muted-foreground);
}
.badge-dot{width:.375rem;height:.375rem;border-radius:9999px;background:var(--amber)}
.h1{margin-top:1.5rem;font-family:var(--font-display);font-weight:700;font-size:2.25rem;line-height:1.25}
@media (min-width:768px){.h1{font-size:3.75rem}}
.lead{margin-top:1.5rem;max-width:36rem;font-size:1.125rem;line-height:1.75;color:var(--muted-foreground)}
.actions{margin-top:2rem;display:flex;flex-wrap:wrap;gap:.75rem}
.btn-lg{
  display:inline-block;border-radius:9999px;padding:.75rem 1.5rem;
  font-weight:500;transition:opacity .2s,background-color .2s;
}
.btn-solid{background:var(--primary);color:var(--primary-foreground)}
.btn-solid:hover{opacity:.9}
.btn-outline{border:1px solid var(--border)}
.btn-outline:hover{background:var(--surface-2)}
.stats{margin-top:2.5rem;display:flex;gap:2rem;font-size:.875rem;color:var(--muted-foreground)}
.stat-num{font-size:1.5rem;font-weight:600;color:var(--foreground)}

/* ================= HeroDemo ================= */
.demo{
  position:relative;border-radius:1.5rem;border:1px solid var(--border);
  background:color-mix(in oklab, var(--surface) 80%, transparent);
  padding:1.25rem;box-shadow:0 25px 50px -12px rgb(0 0 0 / .25);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.demo-head{margin-bottom:1rem;display:flex;align-items:center;justify-content:space-between;gap:.75rem}
.demo-brand{display:flex;align-items:center;gap:.625rem}
.orb{position:relative;display:grid;place-items:center;width:2rem;height:2rem}
.orb-ring{
  position:absolute;inset:0;border-radius:9999px;border:2px solid transparent;
  border-top-color:color-mix(in oklab, var(--cobalt) 40%, transparent);
}
.orb-ring.thinking{border-top-color:var(--cobalt);border-right-color:var(--amber)}
.orb-dot{width:.75rem;height:.75rem;border-radius:9999px;background:var(--amber)}
.orb-dot.thinking{background:var(--cobalt);animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}
.demo-title{font-size:.875rem;font-weight:500}
.demo-sub{font-size:11px;color:var(--muted-foreground);line-height:1.4}

.scene-tabs{display:flex;gap:.25rem;border:1px solid var(--border);background:var(--surface-2);border-radius:9999px;padding:2px}
.scene-tab{border-radius:9999px;padding:.25rem .75rem;font-size:.75rem;color:var(--muted-foreground);transition:color .2s,background-color .2s}
.scene-tab:hover{color:var(--foreground)}
.scene-tab.on{background:color-mix(in oklab, var(--cobalt) 20%, transparent);color:var(--foreground)}

.bubble-row{display:flex;justify-content:end}
.bubble{
  max-width:85%;border-radius:1rem;border-bottom-right-radius:.125rem;
  background:var(--primary);color:var(--primary-foreground);
  padding:.625rem 1rem;font-size:.875rem;line-height:1.5;
}
.caret{
  margin-left:2px;display:inline-block;width:1px;height:1rem;
  background:var(--primary-foreground);vertical-align:middle;
  animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite;
}

.demo-panel{
  margin-top:1rem;border-radius:1rem;padding:1rem;
  border:1px solid color-mix(in oklab, var(--cobalt) 25%, transparent);
  background:color-mix(in oklab, var(--surface-2) 70%, transparent);
}
.agents{display:flex;flex-wrap:wrap;gap:.375rem}
.agent{
  display:inline-flex;align-items:center;gap:.375rem;
  border-radius:9999px;border:1px solid transparent;padding:.125rem .5rem;font-size:11px;
}
.agent.warm{border-color:color-mix(in oklab, var(--amber) 40%, transparent);color:var(--amber)}
.agent:not(.warm){border-color:color-mix(in oklab, var(--cobalt) 40%, transparent);color:var(--cobalt)}
.agent-dot{width:.375rem;height:.375rem;border-radius:9999px}
.agent-dot.warm{background:var(--amber)}
.agent-dot:not(.warm){background:var(--cobalt)}
.agent-dot.pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}
.agent-role{color:var(--muted-foreground)}

.intents{margin-top:.75rem;display:flex;flex-wrap:wrap;gap:.375rem}
.intent{border-radius:.375rem;background:color-mix(in oklab, var(--background) 60%, transparent);padding:.125rem .5rem;font-size:11px;color:var(--muted-foreground)}
.flow-sep{margin-top:.75rem;height:1px;background:var(--border)}
.steps{margin-top:.75rem;list-style:none;display:flex;flex-direction:column;gap:.5rem}
.step{display:flex;align-items:flex-start;gap:.625rem;font-size:.75rem}
.step-check{margin-top:.125rem;width:.875rem;height:.875rem;color:var(--cobalt);flex:none}
.step-dot{margin-top:.25rem;width:.625rem;height:.625rem;border-radius:9999px;background:var(--cobalt);flex:none;animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}
.step-agent{margin-right:.375rem;color:var(--cobalt)}
.step-text{color:var(--muted-foreground)}

.result{margin-top:1rem}
.photo-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.375rem}
.photo-cell{aspect-ratio:1/1;border-radius:.375rem;border:1px solid var(--border)}
.photo-foot{margin-top:.5rem;display:flex;align-items:center;justify-content:space-between;font-size:.75rem}
.photo-foot .muted{color:var(--muted-foreground)}
.photo-foot .amber{color:var(--amber)}

.policy{display:flex;flex-direction:column;gap:.375rem}
.policy-row{
  display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  border:1px solid var(--border);background:color-mix(in oklab, var(--background) 40%, transparent);
  border-radius:.5rem;padding:.5rem .75rem;
}
.policy-left{display:flex;align-items:center;gap:.5rem;min-width:0}
.policy-icon{width:.875rem;height:.875rem;color:var(--cobalt);flex:none}
.policy-name{font-size:.75rem}
.policy-desc{font-size:11px;color:var(--muted-foreground)}
.policy-status{font-size:11px;flex:none}
.policy-status.amber{color:var(--amber)}
.policy-status.cobalt{color:var(--cobalt)}
.policy-tip{padding-top:.25rem;font-size:.75rem;color:var(--amber)}

.chips{margin-top:.75rem;display:flex;flex-wrap:wrap;gap:.375rem}
.chip{
  display:inline-flex;align-items:center;border-radius:9999px;
  border:1px solid var(--border);background:var(--surface-2);
  padding:.25rem .75rem;font-size:11px;color:var(--muted-foreground);
  transition:border-color .2s,color .2s;
}
.chip:hover{border-color:color-mix(in oklab, var(--cobalt) 50%, transparent);color:var(--foreground)}
.chip-icon{margin-right:.25rem;width:.75rem;height:.75rem;color:var(--amber)}

.memory{
  margin-top:1.25rem;border-radius:1rem;padding:1rem;
  border:1px solid color-mix(in oklab, var(--amber) 30%, transparent);
  background:linear-gradient(to bottom right, color-mix(in oklab, var(--amber) 10%, transparent), transparent);
}
.memory-head{display:flex;align-items:flex-start;gap:.75rem}
.memory-icon{margin-top:.125rem;width:1rem;height:1rem;color:var(--amber);flex:none}
.memory-text{font-size:.875rem;line-height:1.625}
.memory-title{font-weight:500;color:var(--amber)}
.memory-body{margin-top:.25rem;color:var(--muted-foreground)}
.memory-body .hl{color:var(--foreground);font-weight:600}

.movie-btn{
  margin-top:.75rem;width:100%;display:flex;align-items:center;justify-content:center;gap:.5rem;
  border-radius:.75rem;background:var(--primary);color:var(--primary-foreground);
  padding:.5rem;font-size:.875rem;font-weight:500;transition:opacity .2s;
}
.movie-btn:hover{opacity:.9}
.movie-btn svg{width:1rem;height:1rem}
.progress{margin-top:.75rem;height:.375rem;border-radius:9999px;background:var(--surface-2);overflow:hidden}
.progress-fill{height:100%;background:var(--amber);border-radius:9999px}
.progress-text{margin-top:.5rem;font-size:.75rem;color:var(--muted-foreground)}
.movie-cover{
  margin-top:.75rem;position:relative;aspect-ratio:16/9;display:grid;place-items:center;
  overflow:hidden;border-radius:.75rem;border:1px solid color-mix(in oklab, var(--amber) 30%, transparent);
  background:radial-gradient(circle at 30% 30%, color-mix(in oklab, var(--amber) 45%, transparent), var(--surface-2) 70%);
}
.play-btn{
  display:grid;place-items:center;width:3rem;height:3rem;border-radius:9999px;
  background:color-mix(in oklab, var(--background) 60%, transparent);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.play-btn svg{width:1.25rem;height:1.25rem;color:var(--amber)}
.movie-title{position:absolute;bottom:.5rem;left:.75rem;font-family:var(--font-display);font-size:.875rem}
.movie-dur{position:absolute;bottom:.5rem;right:.75rem;font-size:.75rem;color:var(--muted-foreground)}
.movie-reset{margin-top:.5rem;font-size:.75rem;color:var(--muted-foreground);transition:color .2s}
.movie-reset:hover{color:var(--foreground)}

/* ================= SectionTitle ================= */
.st-wrap{margin:0 auto 3.5rem;max-width:42rem;text-align:center}
.st-eyebrow{font-size:.75rem;letter-spacing:.3em;color:var(--cobalt)}
.st-title{margin-top:.75rem;font-family:var(--font-display);font-weight:700;font-size:1.875rem;line-height:1.3}
@media (min-width:768px){.st-title{font-size:2.25rem}}
.st-desc{margin-top:1rem;color:var(--muted-foreground)}

/* ================= Compare ================= */
.cmp-section{margin:0 auto;max-width:72rem;padding:6rem 1.5rem}
.cmp-list{display:flex;flex-direction:column;gap:1rem}
.cmp-row{display:grid;gap:1rem;align-items:stretch}
@media (min-width:768px){.cmp-row{grid-template-columns:140px 1fr 1fr}}
.cmp-key{display:flex;align-items:center;gap:.5rem;font-weight:500}
.cmp-key svg{width:1rem;height:1rem;color:var(--cobalt)}
.cmp-old{
  display:flex;align-items:center;gap:.75rem;
  border:1px solid var(--border);background:var(--surface);
  border-radius:1rem;padding:1.25rem;color:var(--muted-foreground);
}
.cmp-old svg{width:1rem;height:1rem;flex:none;opacity:.5}
.cmp-old-tag{margin-right:.5rem;font-size:.75rem;opacity:.6}
.cmp-new{
  display:flex;align-items:center;gap:.75rem;
  border:1px solid color-mix(in oklab, var(--amber) 25%, transparent);
  background:linear-gradient(to right, color-mix(in oklab, var(--amber) 10%, transparent), var(--surface));
  border-radius:1rem;padding:1.25rem;
}
.cmp-new svg{width:1rem;height:1rem;flex:none;color:var(--amber)}
.cmp-new-tag{margin-right:.5rem;font-size:.75rem;color:var(--amber)}

/* ================= Pillars ================= */
.pil-section{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:color-mix(in oklab, var(--surface) 40%, transparent);padding:6rem 0}
.pil-inner{margin:0 auto;max-width:72rem;padding:0 1.5rem}
.pil-tabs{
  margin:0 auto 2.5rem;width:fit-content;display:flex;gap:.25rem;
  border:1px solid var(--border);background:var(--surface);border-radius:9999px;padding:.25rem;
}
.pil-tab{
  border-radius:9999px;padding:.5rem 1.25rem;font-size:.875rem;
  color:var(--muted-foreground);transition:all .2s;
}
.pil-tab:hover{color:var(--foreground)}
.pil-tab.on{background:var(--surface-2);color:var(--foreground);box-shadow:0 1px 3px 0 rgb(0 0 0/.1), 0 1px 2px -1px rgb(0 0 0/.1)}
.pil-grid{display:grid;gap:2.5rem}
@media (min-width:768px){.pil-grid{grid-template-columns:1fr 1fr}}
.pil-copy{display:flex;flex-direction:column;justify-content:center}
.pil-icon{width:2.5rem;height:2.5rem}
.pil-icon.warm{color:var(--amber)}
.pil-icon.cool{color:var(--cobalt)}
.pil-title{margin-top:1.25rem;font-family:var(--font-display);font-weight:700;font-size:1.5rem;line-height:1.35}
@media (min-width:768px){.pil-title{font-size:1.875rem}}
.pil-desc{margin-top:1rem;line-height:1.75;color:var(--muted-foreground)}
.pil-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.pil-card{
  border:1px solid transparent;background:var(--surface);
  border-radius:1rem;padding:1.25rem;transition:transform .2s,box-shadow .2s;
}
.pil-card:hover{transform:translateY(-.25rem)}
.pil-card.warm{border-color:color-mix(in oklab, var(--amber) 20%, transparent)}
.pil-card.warm:hover{box-shadow:0 0 40px -10px color-mix(in oklab, var(--amber) 55%, transparent)}
.pil-card.cool{border-color:color-mix(in oklab, var(--cobalt) 20%, transparent)}
.pil-card.cool:hover{box-shadow:0 0 40px -12px color-mix(in oklab, var(--cobalt) 55%, transparent)}
.pil-card-t{font-weight:500}
.pil-card-d{margin-top:.5rem;font-size:.875rem;color:var(--muted-foreground)}

/* ================= Trust ================= */
.trust-section{margin:0 auto;max-width:72rem;padding:6rem 1.5rem}
.trust-grid{display:grid;gap:1.25rem}
@media (min-width:768px){.trust-grid{grid-template-columns:repeat(3,1fr)}}
.tr-card{
  position:relative;overflow:hidden;border:1px solid var(--border);background:var(--surface);
  border-radius:1.5rem;padding:2rem;transition:border-color .2s;
}
.tr-card:hover{border-color:color-mix(in oklab, var(--cobalt) 40%, transparent)}
.tr-halo{
  position:absolute;right:-2.5rem;top:-2.5rem;width:8rem;height:8rem;border-radius:9999px;
  background:color-mix(in oklab, var(--cobalt) 10%, transparent);
  filter:blur(64px);transition:background-color .2s;
}
.tr-card:hover .tr-halo{background:color-mix(in oklab, var(--cobalt) 25%, transparent)}
.tr-icon{width:2rem;height:2rem;color:var(--cobalt)}
.tr-t{margin-top:1.25rem;font-size:1.25rem;font-weight:600}
.tr-d{margin-top:.75rem;font-size:.875rem;line-height:1.75;color:var(--muted-foreground)}

/* ================= Apps ================= */
.apps-section{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:color-mix(in oklab, var(--surface) 40%, transparent);padding:6rem 0}
.apps-inner{margin:0 auto;max-width:72rem;padding:0 1.5rem}
.apps-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
@media (min-width:768px){.apps-grid{grid-template-columns:repeat(3,1fr)}}
.app-card{
  border:1px solid var(--border);background:var(--surface);
  border-radius:1rem;padding:1.5rem;transition:transform .2s,background-color .2s;
}
.app-card:hover{transform:translateY(-.25rem);background:var(--surface-2)}
.app-ico{
  display:grid;place-items:center;width:2.75rem;height:2.75rem;
  border-radius:.75rem;border:1px solid transparent;
}
.app-ico svg{width:1.25rem;height:1.25rem}
.app-ico.warm{border-color:color-mix(in oklab, var(--amber) 30%, transparent);color:var(--amber)}
.app-ico.cool{border-color:color-mix(in oklab, var(--cobalt) 30%, transparent);color:var(--cobalt)}
.app-t{margin-top:1rem;font-weight:500}
.app-d{margin-top:.25rem;font-size:.875rem;color:var(--muted-foreground)}

/* ================= Voices ================= */
.voices-section{margin:0 auto;max-width:72rem;padding:6rem 1.5rem}
.voices-grid{display:grid;gap:1.25rem}
@media (min-width:768px){.voices-grid{grid-template-columns:repeat(3,1fr)}}
.vc-fig{border:1px solid var(--border);background:var(--surface);border-radius:1.5rem;padding:1.75rem}
.vc-q{font-family:var(--font-display);line-height:1.75}
.vc-cap{margin-top:1.5rem;display:flex;align-items:center;gap:.5rem;font-size:.875rem;color:var(--muted-foreground)}
.vc-cap svg{width:1rem;height:1rem;color:var(--amber)}

/* ================= CTA ================= */
.cta-section{padding:0 1.5rem 6rem}
.cta-box{
  position:relative;overflow:hidden;margin:0 auto;max-width:64rem;
  border:1px solid color-mix(in oklab, var(--amber) 25%, transparent);
  background:var(--surface);border-radius:2rem;padding:3rem;text-align:center;
}
@media (min-width:768px){.cta-box{padding:4rem}}
.cta-halo{
  position:absolute;pointer-events:none;left:50%;top:0;height:16rem;width:600px;
  transform:translateX(-50%);border-radius:9999px;
  background:color-mix(in oklab, var(--amber) 15%, transparent);filter:blur(100px);
}
.cta-h2{position:relative;font-family:var(--font-display);font-weight:700;font-size:1.875rem;line-height:1.3}
@media (min-width:768px){.cta-h2{font-size:3rem}}
.cta-p{position:relative;margin-top:1rem;color:var(--muted-foreground)}
.cta-row{position:relative;margin-top:2rem;display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem}

/* ================= Footer ================= */
.ft{
  border-top:1px solid var(--border);
  background:color-mix(in oklab, var(--surface) 40%, transparent);
}
.ft-inner{margin:0 auto;max-width:80rem;padding:4rem 1.5rem 0}

/* 上区：品牌 + 导航 */
.ft-top{display:grid;gap:3rem}
@media (min-width:1024px){.ft-top{grid-template-columns:1.05fr 2.5fr;gap:4rem}}
.ft-slogan{margin-top:1.25rem;font-family:var(--font-display);font-size:1.0625rem;color:var(--foreground)}
.ft-desc{margin-top:.5rem;max-width:22rem;font-size:.875rem;line-height:1.75;color:var(--muted-foreground)}
.ft-brand-acts{margin-top:1.5rem;display:flex;flex-wrap:wrap;align-items:center;gap:1.25rem}
.ft-cta{
  display:inline-flex;align-items:center;height:2.5rem;padding:0 1.125rem;border-radius:9999px;
  border:1px solid var(--border);font-size:.8125rem;font-weight:500;
  transition:border-color .2s,color .2s;
}
.ft-cta:hover{border-color:color-mix(in oklab, var(--amber) 50%, transparent);color:var(--amber)}
.ft-link{font-size:.8125rem;color:var(--muted-foreground);transition:color .2s}
.ft-link:hover{color:var(--amber)}

.ft-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}
@media (min-width:768px){.ft-cols{grid-template-columns:repeat(4,1fr)}}
.ft-col-t{font-size:.8125rem;font-weight:600;letter-spacing:.02em;color:var(--foreground)}
.ft-list{margin-top:1rem;display:flex;flex-direction:column;gap:.625rem;font-size:.8125rem;color:var(--muted-foreground)}
.ft-list a{transition:color .2s}
.ft-list a:hover{color:var(--foreground)}

/* 中区：服务承诺 */
.ft-trust{
  margin-top:3rem;padding:1.125rem 0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:1.75rem;
  font-size:.75rem;color:var(--muted-foreground);
}
.ft-trust span{display:inline-flex;align-items:center;gap:.5rem}
.ft-trust svg{width:.875rem;height:.875rem;color:var(--cobalt)}

/* 下区：版权与备案 */
.ft-bottom{
  padding:1.5rem 0 2.5rem;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:.75rem;
}
.ft-legal{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;font-size:.75rem;color:var(--muted-foreground)}
.ft-beian{transition:color .2s}
.ft-beian:hover{color:var(--amber)}
.ft-note{font-size:.75rem;color:oklch(0.55 0.015 260)}

/* ================= 返回顶部 ================= */
.to-top{
  position:fixed;z-index:60;right:1.5rem;bottom:1.75rem;
  width:2.75rem;height:2.75rem;border-radius:9999px;
  display:grid;place-items:center;
  border:1px solid var(--border);
  background:color-mix(in oklab, var(--surface) 85%, transparent);
  color:var(--muted-foreground);
  box-shadow:0 18px 40px -18px rgb(0 0 0 / .7);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  opacity:0;visibility:hidden;transform:translateY(.75rem) scale(.95);
  transition:opacity .25s, transform .25s, visibility .25s, color .2s, border-color .2s, box-shadow .25s;
}
.to-top svg{width:1.125rem;height:1.125rem}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.to-top:hover{
  color:var(--amber);
  border-color:color-mix(in oklab, var(--amber) 45%, transparent);
  box-shadow:0 0 40px -10px color-mix(in oklab, var(--amber) 55%, transparent),
             0 18px 40px -18px rgb(0 0 0 / .7);
}
.to-top:focus-visible{outline:2px solid var(--cobalt);outline-offset:2px}

/* ================= 响应式 ================= */
@media (max-width:1023px){.nav{display:none}}
@media (max-width:767px){.ha-monitor{display:none}}
@media (max-width:639px){.ha-login{display:none}}
@media (max-width:639px){
  .to-top{right:1rem;bottom:1.25rem;width:2.5rem;height:2.5rem}
  .hero-inner{padding:4rem 1.5rem}
  .stats{gap:1.25rem;flex-wrap:wrap}
  .cmp-section,.trust-section,.voices-section{padding:4rem 1.5rem}
  .pil-section,.apps-section{padding:4rem 0}
  .cta-box{padding:2rem 1.25rem}
}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}