/* product-page.css — 所有产品单页共享样式 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --bg:#fff;--bg-alt:#f5f5f7;--dark:#1d1d1f;--muted:#6e6e73;
  --red:#c41e3a;--blue:#1a3a6b;
  --font:-apple-system,BlinkMacSystemFont,system-ui,"Noto Sans SC",sans-serif;
}
html{scroll-behavior:smooth;}
body{font-family:var(--font);background:var(--bg);color:var(--dark);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;}

nav{position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 6%;height:52px;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.06);}
.nav-logo{text-decoration:none;display:flex;align-items:center;gap:8px;}
.nav-logo img{height:26px;width:auto;}
.nav-logo-text{font-size:17px;font-weight:700;color:var(--dark);}
.nav-logo-text .red{color:var(--red);}
.nav-back{color:var(--muted);text-decoration:none;font-size:13px;transition:color .2s;}
.nav-back:hover{color:var(--dark);}

.pd-hero{min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  background:radial-gradient(ellipse 90% 70% at 50% 35%,#22375f 0%,#0e1729 55%,#080d17 100%);
  position:relative;padding:0 6%;overflow:hidden;}
.pd-hero-icon{width:128px;height:128px;border-radius:30px;
  box-shadow:0 30px 80px rgba(0,0,0,.5);margin-bottom:36px;
  animation:float 5s ease-in-out infinite;opacity:0;}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.pd-hero h1{font-size:clamp(44px,7vw,80px);font-weight:700;color:#fff;
  letter-spacing:-.02em;margin-bottom:20px;opacity:0;}
.pd-hero .tagline{font-size:clamp(18px,2.4vw,26px);color:rgba(255,255,255,.62);
  font-weight:300;letter-spacing:.04em;opacity:0;}
.pd-hero .hero-dl{margin-top:30px;opacity:0;}
.pd-scroll{position:absolute;bottom:34px;left:50%;
  width:15px;height:15px;border-right:1.5px solid rgba(255,255,255,.35);
  border-bottom:1.5px solid rgba(255,255,255,.35);
  transform:translateX(-50%) rotate(45deg);animation:sb 2s infinite;}
@keyframes sb{0%,100%{opacity:.3}50%{opacity:.9}}

.manifesto{padding:140px 8%;text-align:center;background:var(--bg);}
.manifesto p{font-size:clamp(26px,4vw,50px);font-weight:600;
  line-height:1.4;letter-spacing:-.01em;max-width:860px;margin:0 auto;
  text-wrap:balance;}
.manifesto .sub{font-size:clamp(16px,2vw,20px);color:var(--muted);
  font-weight:400;margin-top:28px;line-height:1.7;text-wrap:pretty;}

.moment{padding:110px 8%;display:flex;align-items:center;justify-content:center;
  min-height:92vh;perspective:1400px;overflow:hidden;}
.moment-inner{max-width:980px;width:100%;display:grid;
  grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  will-change:transform,opacity;transform-origin:center center;
  backface-visibility:hidden;}
.moment.reverse .moment-inner{direction:rtl;}
.moment.reverse .moment-text{direction:ltr;}
.moment-text .kicker{font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--red);margin-bottom:18px;font-weight:600;}
.moment-text h2{font-size:clamp(29px,3.6vw,44px);font-weight:700;
  line-height:1.2;letter-spacing:-.02em;margin-bottom:22px;text-wrap:balance;}
.moment-text p{font-size:clamp(16px,1.8vw,19px);color:var(--muted);
  line-height:1.75;text-wrap:pretty;}
.moment.alt{background:var(--bg-alt);}

.visual{border-radius:24px;padding:48px 40px;min-height:280px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  box-shadow:0 20px 54px rgba(0,0,0,.09);}
.v-feat{background:linear-gradient(150deg,#1a3560,#0a1a40);text-align:center;}
.vf-icon img{width:80px;height:80px;border-radius:18px;
  box-shadow:0 16px 40px rgba(0,0,0,.4);margin-bottom:24px;}
.vf-label{font-size:22px;font-weight:700;color:#fff;line-height:1.3;}

/* ── bespoke moment visuals (数据源渲染，不再从 README 抽取) ── */
.moment.dark{background:var(--dark);}
.moment.dark h2{color:#fff;}
.moment.dark p{color:rgba(255,255,255,.6);}

.v-count{background:linear-gradient(150deg,#22375f,#0e1729);color:#fff;text-align:center;}
.v-count .lbl{font-size:15px;color:rgba(255,255,255,.55);margin-bottom:14px;}
.v-count .big{font-size:clamp(40px,6vw,64px);font-weight:800;line-height:1.12;text-wrap:balance;}
.v-count .big span{color:#ff5a5f;}
.v-count .foot{margin-top:20px;font-size:13px;color:rgba(255,255,255,.4);}

.v-cards{background:#fff;gap:12px;align-items:stretch;}
.v-row{display:flex;align-items:center;gap:14px;padding:14px 16px;
  background:var(--bg-alt);border-radius:14px;}
.v-dot{width:38px;height:38px;border-radius:11px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:20px;}
.v-row .t{font-size:15px;font-weight:600;}
.v-row .s{font-size:12px;color:var(--muted);margin-top:2px;}

.v-tags{background:#fff;flex-direction:row;flex-wrap:wrap;gap:12px;align-content:center;}
.v-tag{padding:14px 22px;border-radius:14px;background:var(--bg-alt);
  font-size:16px;font-weight:600;}
.v-tag.on{background:var(--blue);color:#fff;}

.v-chart{background:#fff;}
.v-chart svg{width:100%;height:auto;}

/* 宜忌 古今对照卡 */
.v-yiji{background:#fbfaf7;flex-direction:row;gap:14px;align-items:stretch;padding:36px 30px;}
.v-yiji .col{flex:1;display:flex;flex-direction:column;gap:10px;}
.v-yiji .hd{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;margin-bottom:4px;}
.v-yiji .hd .mk{width:30px;height:30px;border-radius:8px;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;}
.v-yiji .yi .mk{background:#2e8b57;} .v-yiji .ji .mk{background:#8a8a8a;}
.v-yiji .it{background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:10px;padding:9px 12px;}
.v-yiji .it b{font-size:16px;} .v-yiji .yi .it b{color:#2e8b57;}
.v-yiji .it span{display:block;font-size:12px;color:var(--muted);margin-top:2px;}

/* ── 真机截图展示带 ── */
.shots{padding:120px 8%;text-align:center;
  background:linear-gradient(180deg,#f5f6f9 0%,#e9edf4 100%);}
.shots .kicker{font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--red);margin-bottom:16px;font-weight:600;}
.shots h2{font-size:clamp(26px,4vw,44px);font-weight:700;
  margin-bottom:12px;letter-spacing:-.01em;text-wrap:balance;}
.shots .sub{font-size:clamp(15px,1.8vw,18px);color:var(--muted);
  margin-bottom:50px;line-height:1.7;}
.shots-img{max-width:300px;width:70%;height:auto;border-radius:22px;
  filter:drop-shadow(0 20px 50px rgba(0,0,0,.14)) drop-shadow(0 4px 12px rgba(0,0,0,.08));}
/* 多图横向图廊：张数不限（内容军规原则二），窄屏横向滑动，宽屏 grid 自动均分 */
.shots-gallery{display:flex;gap:26px;justify-content:flex-start;align-items:flex-start;
  overflow-x:auto;padding:10px 4px 30px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;}
.shots-gallery::-webkit-scrollbar{height:6px;}
.shots-gallery::-webkit-scrollbar-thumb{background:rgba(0,0,0,.14);border-radius:3px;}
.shot-card{flex:0 0 auto;scroll-snap-align:center;}
.shot-card img{width:230px;height:auto;display:block;}
@media(min-width:900px){
  .shots-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,320px));
    gap:28px;justify-content:center;align-items:start;
    overflow-x:visible;padding:10px 0 30px;scroll-snap-type:none;}
  .shot-card{scroll-snap-align:none;}
  .shot-card img{width:100%;max-width:320px;}
}

/* 截图直接作为 moment 右侧视觉：撑满高度、居中，带手机框阴影 */
.visual.shot{background:transparent;box-shadow:none;padding:0;min-height:280px;
  display:flex;align-items:center;justify-content:center;}
.visual.shot img{max-width:260px;width:auto;max-height:560px;height:auto;border-radius:22px;
  filter:drop-shadow(0 20px 44px rgba(0,0,0,.16)) drop-shadow(0 3px 10px rgba(0,0,0,.08));}

.values{padding:130px 8%;text-align:center;
  background:radial-gradient(ellipse 90% 70% at 50% 35%,#22375f 0%,#0e1729 55%,#080d17 100%);}
.values h2{font-size:clamp(28px,4vw,46px);font-weight:700;color:#fff;
  margin-bottom:14px;letter-spacing:-.01em;text-wrap:balance;}
.values .sub{font-size:17px;color:rgba(255,255,255,.5);margin-bottom:46px;}
.value-badges{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.vb{padding:13px 26px;border:1px solid rgba(255,255,255,.18);
  border-radius:980px;color:rgba(255,255,255,.85);font-size:15px;font-weight:500;}

.cta{padding:120px 8%;text-align:center;background:var(--bg);}
.cta img{width:92px;height:92px;border-radius:21px;
  box-shadow:0 16px 40px rgba(0,0,0,.18);margin-bottom:24px;}
.cta h2{font-size:clamp(28px,4vw,44px);font-weight:700;margin-bottom:10px;}
.cta .sub{font-size:17px;color:var(--muted);margin-bottom:38px;}
.dl-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.dl{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;
  border-radius:980px;font-size:15px;font-weight:600;text-decoration:none;
  transition:transform .15s,background .2s,box-shadow .2s;}
.dl.android{background:var(--blue);color:#fff;}
.dl.android:hover{background:#0e2450;transform:scale(1.03);box-shadow:0 8px 24px rgba(6,37,110,.35);}
.dl.ios{background:var(--dark);color:#fff;}
.dl.ios:hover{background:#000;transform:scale(1.03);box-shadow:0 8px 24px rgba(0,0,0,.25);}
.dl.soon{background:rgba(255,255,255,.12);color:rgba(255,255,255,.45);cursor:default;border:1px solid rgba(255,255,255,.12);}

/* Hero 暗色背景上的按钮：玻璃态外框 */
.pd-hero .dl.android,
.pd-hero .dl.ios{background:rgba(255,255,255,.12);color:#fff;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.2);}
.pd-hero .dl.android:hover{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.35);}
.pd-hero .dl.ios:hover{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.35);}
.pd-hero .dl.soon{background:rgba(255,255,255,.06);color:rgba(255,255,255,.3);
  border:1px solid rgba(255,255,255,.08);}

footer{background:linear-gradient(180deg,#0e1729 0%,#080d17 100%);
  color:rgba(255,255,255,.4);padding:40px 6%;
  text-align:center;font-size:13px;line-height:2.2;}
footer a{color:rgba(255,255,255,.55);text-decoration:none;}

.reveal{opacity:0;transform:translateY(36px);}

@media(max-width:760px){
  .moment-inner{grid-template-columns:1fr;gap:32px;}
  .moment.reverse .moment-inner{direction:ltr;}
  .moment{min-height:auto;padding:80px 8%;}
  .manifesto{padding:90px 8%;}
}

/* FAQ 常见问题（GEO：AI 抓取 + 用户可折叠阅读） */
.faq{padding:100px 8%;background:var(--bg);}
.faq h2{font-size:clamp(26px,4vw,40px);font-weight:700;margin-bottom:18px;text-align:center;}
.faq-list{max-width:760px;margin:0 auto;}
.faq details{border-bottom:1px solid rgba(0,0,0,.08);}
.faq summary{cursor:pointer;font-size:17px;font-weight:600;padding:20px 30px 20px 4px;
  list-style:none;position:relative;color:var(--dark);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--muted);}
.faq details[open] summary::after{content:"−";}
.faq details p{font-size:15px;color:var(--muted);line-height:1.8;padding:0 4px 20px;margin:0;}