/* Hallmark · macrostructure: Workbench (telemetry-editorial) · tone: technical-precise · anchor hue: teal (cool 190°) + gold
 * genre: modern-minimal · theme: custom (vibe: "AI billiards telemetry, precise, sporty" · paper #F2F7F7 · accent teal/gold · Space Grotesk + Space Mono)
 * 涨球 AI · 共享设计系统（惠及全部营销页）· 品牌不变，视觉层重塑
 */

/* ============ 自托管字体（仅拉丁子集，避开国内 Google Fonts 延迟）============ */
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;
  src:url("/fonts/space-grotesk-500.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191-2193,U+2212,U+2215}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:600;font-display:swap;
  src:url("/fonts/space-grotesk-600.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191-2193,U+2212,U+2215}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;
  src:url("/fonts/space-grotesk-700.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191-2193,U+2212,U+2215}
@font-face{font-family:"Space Mono";font-style:normal;font-weight:400;font-display:swap;
  src:url("/fonts/space-mono-400.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191-2193,U+2212,U+2215}
@font-face{font-family:"Space Mono";font-style:normal;font-weight:700;font-display:swap;
  src:url("/fonts/space-mono-700.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191-2193,U+2212,U+2215}

/* ============ Design Tokens ============ */
:root{
  /* 核心语义色（品牌不变）*/
  --primary:#1A6E6E;        /* CTA·品牌·进度 */
  --secondary:#2A8F8F;      /* 渐变起始·辅助 */
  --bg:#F2F7F7;             /* 亮色页面背景 */
  --bg-secondary:#E7EFEF;   /* 次级背景 */
  --dark:#0B1F24;           /* 暗色底·主标题深色 */
  --dark-2:#08181C;         /* 最深暗底 */
  --accent:#FFC53D;         /* 徽章·高亮（金）*/
  --accent-lime:#DBF37A;    /* 柠檬绿高亮 */
  --success:#12C97E;
  --error:#FF6362;
  /* 功能色 */
  --goal-green:#0E5050;
  --ring-green:#3FB3B3;
  --goal-orange:#FF6F2C;
  --price-red:#FF4964;
  --text-grey:#6D7181;
  --member-brown:#B88746;
  /* 文本（近黑不同透明度）*/
  --ink:#0B1F24;
  --text:#12262B;
  --text-2:#5A6B70;
  --text-3:#93A3A6;
  --text-on-dark:rgba(255,255,255,.72);
  --text-on-dark-2:rgba(255,255,255,.52);
  /* 描边 / 面板 */
  --surface:#fff;
  --line:rgba(11,31,36,.10);
  --line-strong:rgba(11,31,36,.18);
  --line-dark:rgba(255,255,255,.12);
  --line-dark-strong:rgba(63,179,179,.30);
  /* 字体族 */
  --font-display:"Space Grotesk","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --font-sans:-apple-system,system-ui,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --font-mono:"Space Mono",ui-monospace,"SF Mono","JetBrains Mono","PingFang SC",monospace;
  /* 流体字号 ramp */
  --fs-kicker:clamp(11px,1.4vw,12px);
  --fs-cap:12px;
  --fs-sm:13px;
  --fs-body:clamp(14.5px,1.6vw,15.5px);
  --fs-sub:clamp(15px,1.8vw,17px);
  --fs-h4:clamp(15px,1.8vw,16.5px);
  --fs-h3:clamp(19px,2.6vw,23px);
  --fs-h2:clamp(26px,4.4vw,40px);
  --fs-h1:clamp(32px,6.2vw,52px);
  --fs-display:clamp(38px,8.6vw,76px);
  --fs-score:clamp(52px,9vw,76px);
  /* 8pt 间距刻度 */
  --sp-2:2px; --sp-4:4px; --sp-6:6px; --sp-8:8px; --sp-10:10px; --sp-12:12px;
  --sp-16:16px; --sp-20:20px; --sp-24:24px; --sp-32:32px; --sp-40:40px;
  --sp-48:48px; --sp-56:56px; --sp-64:64px; --sp-80:80px; --sp-96:96px;
  /* 圆角 */
  --r-xs:8px; --r-sm:12px; --r-card:16px; --r-lg:22px; --r-pill:999px;
  /* 阴影 */
  --shadow-soft:0 2px 10px rgba(11,31,36,.05);
  --shadow-card:0 8px 30px -12px rgba(11,31,36,.14);
  --shadow-brand:0 14px 40px -14px rgba(26,110,110,.32);
  --shadow-lift:0 20px 50px -18px rgba(11,31,36,.30);
  /* 渐变（收敛使用）*/
  --grad-button:linear-gradient(180deg,#2A9A9A,#177066);
  --grad-badge:linear-gradient(150deg,#3FB3B3 0%,#1A6E6E 78%);
  --grad-data:linear-gradient(180deg,var(--accent-lime),var(--ring-green));
  --grad-ai:linear-gradient(-63deg,rgba(128,230,255,.85) 30%,var(--accent-lime) 110%); /* 兼容：AI 数据卡 */
  --grad-today:linear-gradient(150deg,#E7EFEF 20%,#D8ECEC 100%);                        /* 兼容：浅底数据卡 */
  --grad-hero:radial-gradient(120% 80% at 82% -6%,rgba(63,179,179,.30),transparent 58%),
              radial-gradient(90% 70% at -6% 12%,rgba(219,243,122,.10),transparent 55%);
  /* 遥测网格纹理 */
  --grid-dark:linear-gradient(rgba(63,179,179,.055) 1px,transparent 1px),
              linear-gradient(90deg,rgba(63,179,179,.055) 1px,transparent 1px);
  /* 动效 */
  --ease-out:cubic-bezier(.22,.68,.32,1);
  --ease-in:cubic-bezier(.5,0,.75,0);
  --ease-in-out:cubic-bezier(.65,.05,.36,1);
  --dur-1:.15s; --dur-2:.28s; --dur-3:.55s;
  /* 布局 */
  --maxw:480px;
  --content:1120px;
  --nav-h:60px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--dark-2);
  line-height:1.62;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
/* 移动优先：内容居中容器，桌面端两侧留白 */
.wrap{max-width:var(--maxw);margin:0 auto;background:var(--bg);min-height:100vh;
  box-shadow:0 0 80px rgba(0,0,0,.5);overflow:clip;position:relative}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ============ 通用排版 ============ */
section{padding:var(--sp-56) 22px;position:relative}
.mono,.tabnum{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* kicker（原 .eyebrow）：科技感小标 — 前置刻度线 + 收紧字距 */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);
  font-size:var(--fs-kicker);font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--primary);margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;opacity:.65;border-radius:2px}
.eyebrow.on-dark{color:var(--ring-green)}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;font-style:normal;color:var(--ink);
  letter-spacing:-.02em;line-height:1.18;overflow-wrap:anywhere;min-width:0}
h2.sec-title{font-size:var(--fs-h2);line-height:1.16}
.sec-sub{margin-top:var(--sp-16);font-size:var(--fs-sub);color:var(--text-2);line-height:1.72;
  font-family:var(--font-sans);max-width:60ch}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-soft);padding:var(--sp-20)}

/* ============ 按钮（8 态）============ */
.btn{--btn-fg:#fff;display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-8);
  height:54px;padding:0 var(--sp-24);border-radius:var(--r-sm);font-family:var(--font-sans);
  font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--btn-fg);
  border:1px solid transparent;cursor:pointer;width:100%;position:relative;isolation:isolate;
  transition:transform var(--dur-1) var(--ease-out),box-shadow var(--dur-1) var(--ease-out),
    background-color var(--dur-1) var(--ease-out),border-color var(--dur-1) var(--ease-out)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 22px -10px rgba(26,110,110,.7)}
.btn-primary:hover{background:#177066;box-shadow:0 14px 30px -12px rgba(26,110,110,.75)}
.btn-accent{background:var(--accent);color:var(--ink);box-shadow:0 8px 22px -10px rgba(255,197,61,.7)}
.btn-accent:hover{background:#F5B71F}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55)}
.btn-ghost.on-light{color:var(--primary);border-color:var(--line-strong)}
.btn-ghost.on-light:hover{background:rgba(26,110,110,.06);border-color:var(--primary)}

/* ============ 滚动渐显 ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity var(--dur-3) var(--ease-out),transform var(--dur-3) var(--ease-out)}
.reveal.in-view{opacity:1;transform:none}

/* ============ 顶部导航（多页共享）============ */
.site-nav{position:sticky;top:0;z-index:60;background:rgba(8,24,28,.82);
  backdrop-filter:saturate(150%) blur(14px);border-bottom:1px solid var(--line-dark)}
.site-nav .nav-inner{display:flex;align-items:center;gap:14px;height:var(--nav-h);
  padding:0 18px;max-width:var(--content);margin:0 auto}
.site-nav .nav-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-display);
  font-weight:700;font-size:18px;letter-spacing:-.01em}
.site-nav .nav-brand b{color:var(--accent);font-weight:700}
.site-nav .nav-brand .logo{width:30px;height:30px;border-radius:9px;background:var(--grad-badge);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(63,179,179,.4)}
.site-nav .nav-links{display:none;align-items:center;gap:2px;margin-left:auto}
.site-nav .nav-links a{color:rgba(255,255,255,.78);font-size:14px;font-weight:600;
  padding:8px 13px;border-radius:9px;transition:background var(--dur-1),color var(--dur-1)}
.site-nav .nav-links a:hover,.site-nav .nav-links a[aria-current="page"]{color:#fff;background:rgba(63,179,179,.16)}
.site-nav .nav-links a:focus-visible{outline:2px solid var(--ring-green);outline-offset:2px}
.site-nav .nav-cta{display:none;margin-left:10px;height:40px;padding:0 18px;font-size:13.5px;width:auto}
.site-nav .nav-toggle{margin-left:auto;width:42px;height:42px;border:none;background:transparent;
  display:grid;place-items:center;cursor:pointer}
.site-nav .nav-toggle:focus-visible{outline:2px solid var(--ring-green);outline-offset:2px;border-radius:8px}
.site-nav .nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;position:relative}
.site-nav .nav-toggle span::before,.site-nav .nav-toggle span::after{content:"";position:absolute;left:0;
  width:22px;height:2px;background:#fff;border-radius:2px;transition:transform var(--dur-2) var(--ease-out)}
.site-nav .nav-toggle span::before{top:-7px}.site-nav .nav-toggle span::after{top:7px}
.site-nav.open .nav-toggle span{background:transparent}
.site-nav.open .nav-toggle span::before{transform:translateY(7px) rotate(45deg)}
.site-nav.open .nav-toggle span::after{transform:translateY(-7px) rotate(-45deg)}
.nav-panel{display:none;flex-direction:column;background:var(--dark);border-bottom:1px solid var(--line-dark)}
.site-nav.open + .nav-panel{display:flex}
.nav-panel a{color:rgba(255,255,255,.85);font-size:15px;font-weight:600;padding:14px 22px;
  border-top:1px solid rgba(255,255,255,.06)}
.nav-panel a:first-child{border-top:none}
.nav-panel .grp{font-family:var(--font-mono);font-size:11px;letter-spacing:1.4px;color:var(--ring-green);
  padding:16px 22px 6px;text-transform:uppercase}
.nav-panel .sub{padding-left:36px;font-size:14px;color:rgba(255,255,255,.7)}

@media (min-width:900px){
  .site-nav .nav-links{display:flex}
  .site-nav .nav-cta{display:inline-flex}
  .site-nav .nav-toggle{display:none}
  .site-nav.open + .nav-panel{display:none}
  .nav-drop{position:relative}
  .nav-drop>a::after{content:"▾";margin-left:5px;font-size:11px;opacity:.7}
  .nav-drop .nav-menu{position:absolute;top:100%;left:0;min-width:210px;background:var(--dark);
    border:1px solid var(--line-dark-strong);border-radius:12px;padding:8px;box-shadow:0 18px 40px rgba(0,0,0,.5);
    opacity:0;visibility:hidden;transform:translateY(6px);transition:var(--dur-2) var(--ease-out)}
  .nav-drop:hover .nav-menu,.nav-drop:focus-within .nav-menu{opacity:1;visibility:visible;transform:none}
  .nav-drop .nav-menu a{display:block;padding:10px 12px;border-radius:8px}
}

/* ============ 通用页面 hero（子页）============ */
.page-hero{background:var(--dark);background-image:var(--grad-hero);color:#fff;
  padding:56px 22px 44px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:var(--grid-dark);
  background-size:34px 34px;opacity:.5;-webkit-mask-image:radial-gradient(80% 70% at 70% 0%,#000,transparent 75%);
  mask-image:radial-gradient(80% 70% at 70% 0%,#000,transparent 75%);pointer-events:none}
.page-hero>*{position:relative}
.page-hero .eyebrow{color:var(--ring-green)}
.page-hero h1{font-size:var(--fs-h1);line-height:1.14;color:#fff}
.page-hero .lead{margin-top:18px;font-size:var(--fs-sub);line-height:1.72;color:var(--text-on-dark);max-width:62ch}
.page-hero .hero-cta{display:flex;flex-direction:column;gap:12px;margin-top:26px}

/* ============ 面包屑 ============ */
.breadcrumb{font-family:var(--font-mono);font-size:12px;color:var(--text-2);padding:14px 22px;
  background:var(--bg);max-width:var(--content);margin:0 auto}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--primary);font-weight:700}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--text-3)}
.breadcrumb [aria-current="page"]{color:var(--text-2)}
.page-hero + .breadcrumb{background:transparent;color:rgba(255,255,255,.6);margin-top:-8px}
.page-hero + .breadcrumb a{color:var(--ring-green)}
.page-hero + .breadcrumb [aria-current="page"]{color:rgba(255,255,255,.55)}

/* ============ 正文 prose（博客/信任页）============ */
.prose{max-width:760px;margin:0 auto;font-size:16px;color:var(--text);line-height:1.85}
.prose h2{font-size:clamp(21px,3vw,26px);color:var(--ink);margin:38px 0 12px;line-height:1.3}
.prose h3{font-size:clamp(17px,2.4vw,20px);color:var(--ink);margin:28px 0 10px}
.prose p{margin:14px 0;color:var(--text)}
.prose ul,.prose ol{margin:14px 0 14px 22px;color:var(--text)}
.prose li{margin:7px 0}
.prose strong,.prose b{color:var(--ink);font-weight:700}
.prose a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(26,110,110,.35)}
.prose a:hover{border-bottom-color:var(--primary)}
.prose blockquote{margin:20px 0;padding:16px 20px;background:var(--bg);border-left:3px solid var(--ring-green);
  border-radius:0 12px 12px 0;color:var(--text-2);font-size:15px}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.prose th{background:var(--dark);color:#fff;font-weight:700;font-family:var(--font-display)}
.prose img,.prose .figure{border-radius:var(--r-lg);overflow:hidden;margin:20px 0;border:1px solid var(--line)}
.article-meta{max-width:760px;margin:0 auto 8px;font-family:var(--font-mono);font-size:12.5px;
  color:var(--text-2);display:flex;gap:14px;flex-wrap:wrap}
.article-meta .tag{color:var(--primary);font-weight:700}
.post-cta{max-width:760px;margin:40px auto 0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow-card);text-align:center}
.post-cta h3{font-size:20px;color:var(--ink)}
.post-cta p{font-size:14.5px;color:var(--text-2);margin:8px 0 18px}
.post-cta .btn{max-width:300px;margin:0 auto}
.related{max-width:760px;margin:32px auto 0}
.related h3{font-size:15px;color:var(--ink);margin-bottom:12px}
.related ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.related a{font-size:14.5px;color:var(--primary);font-weight:600;display:flex;gap:8px;align-items:center}
.related a::before{content:"→";color:var(--ring-green)}

/* ============ 博客列表 ============ */
.post-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;margin-top:28px;max-width:var(--content)}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-soft);transition:transform var(--dur-2) var(--ease-out),box-shadow var(--dur-2) var(--ease-out),border-color var(--dur-2);display:block}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);border-color:var(--line-strong)}
.post-card .pc-tag{font-family:var(--font-mono);font-size:11.5px;font-weight:700;letter-spacing:.5px;
  color:var(--primary);background:var(--bg-secondary);padding:4px 11px;border-radius:var(--r-pill);display:inline-block}
.post-card h3{font-size:19px;margin:14px 0 8px;line-height:1.4}
.post-card p{font-size:14px;color:var(--text-2);line-height:1.62}
.post-card .pc-date{font-family:var(--font-mono);font-size:12px;color:var(--text-3);margin-top:14px}

/* ============ 首页 Hero ============ */
.hero{background:var(--dark);background-image:var(--grad-hero);color:#fff;
  padding:56px 22px 52px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:var(--grid-dark);background-size:36px 36px;
  opacity:.6;-webkit-mask-image:radial-gradient(90% 75% at 75% 0%,#000,transparent 72%);
  mask-image:radial-gradient(90% 75% at 75% 0%,#000,transparent 72%);pointer-events:none}
.hero>*{position:relative}
.hero .hero-grid{position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:26px;padding:7px 13px 7px 8px;
  border:1px solid var(--line-dark);border-radius:var(--r-pill);background:rgba(255,255,255,.04)}
.brand .logo{width:32px;height:32px;border-radius:9px;background:var(--grad-badge);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(63,179,179,.4)}
.brand .name{font-family:var(--font-display);font-weight:700;font-size:16px;letter-spacing:.01em}
.brand .name b{color:var(--accent)}
.hero h1{font-size:var(--fs-h1);line-height:1.14;color:#fff}
.hero h1 .hl{color:var(--accent-lime)}
.hero .lead{margin-top:20px;font-size:var(--fs-sub);line-height:1.74;color:var(--text-on-dark);max-width:56ch}
.cap-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.cap{font-family:var(--font-mono);font-size:12px;font-weight:400;letter-spacing:.02em;padding:6px 12px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.05);border:1px solid var(--line-dark);color:#dff5f5}
.hero-cta{display:flex;flex-direction:column;gap:12px;margin-top:30px}

/* Hero 遥测面板（原 .phone）*/
.phone{margin:38px auto 0;width:min(300px,100%);border-radius:22px;
  background:linear-gradient(165deg,#0d2a30,#07141a);border:1px solid var(--line-dark-strong);
  box-shadow:var(--shadow-lift),inset 0 1px 0 rgba(255,255,255,.05);position:relative;padding:16px}
.phone svg{margin-top:4px}

/* ============ 产品简介 ============ */
.intro{background:var(--bg)}
.intro .sec-sub{max-width:64ch;font-size:clamp(16px,2.4vw,20px);color:var(--text)}
.intro .sec-sub b{color:var(--primary)}

/* ============ 痛点 ============ */
.pain{background:var(--bg)}
.pain-list{display:flex;flex-direction:column;gap:0;margin-top:28px;border-top:1px solid var(--line)}
.pain-item{display:flex;gap:16px;align-items:baseline;padding:18px 4px;border-bottom:1px solid var(--line);
  transition:padding-left var(--dur-2) var(--ease-out)}
.pain-item:hover{padding-left:10px}
.pain-item .q{flex:none;font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--primary);
  min-width:34px}
.pain-item p{font-size:16px;color:var(--text)}
.pain-item p b{color:var(--ink);font-weight:700}

/* ============ 适合谁 ============ */
.audience{background:var(--dark);background-image:var(--grad-hero);color:#fff}
.audience .sec-title{color:#fff}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;margin-top:26px;
  background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--r-lg);overflow:hidden}
.aud-card{background:var(--dark);padding:22px 18px;transition:background var(--dur-2)}
.aud-card:hover{background:#0e262c}
.aud-card .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  margin-bottom:14px;background:rgba(63,179,179,.12);border:1px solid var(--line-dark-strong);color:var(--ring-green)}
.aud-card .ic svg{width:24px;height:24px}
.aud-card h3{font-size:16px;color:#fff}
.aud-card p{font-size:13px;color:var(--text-on-dark);margin-top:8px;line-height:1.6}

/* ============ 功能区 ============ */
.features{background:var(--bg)}
.feature{margin-top:40px;padding-top:40px;border-top:1px solid var(--line)}
.feature:first-of-type{margin-top:32px;padding-top:0;border-top:none}
.feat-tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;
  font-weight:700;letter-spacing:.4px;color:var(--primary);margin-bottom:14px}
.feat-tag::before{content:"";width:16px;height:2px;background:currentColor;border-radius:2px}
.feature h3{font-size:var(--fs-h3);line-height:1.28}
.feature .desc{margin-top:12px;font-size:var(--fs-body);color:var(--text-2);line-height:1.7}
.feature .desc a{color:var(--primary);font-weight:600}
.feat-media{margin-top:20px}
.media-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-soft)}
.media-panel .info-list{margin-top:0}
.feat-visual{margin:20px 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-soft)}
.dim-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;margin-top:16px}
.dim{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 15px}
.dim h4{font-size:14.5px;color:var(--ink);display:flex;align-items:center;gap:8px}
.dim h4 .dot{width:7px;height:7px;border-radius:50%;background:var(--ring-green);flex:none}
.dim p{font-size:12.5px;color:var(--text-2);margin-top:6px;line-height:1.58}
.info-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.info-list li{list-style:none;display:flex;gap:10px;align-items:center;font-size:14.5px;color:var(--text)}
.info-list li svg{flex:none}
.angle-row{display:flex;gap:10px;margin-top:16px}
.angle{flex:1;text-align:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:15px 6px}
.angle span{display:block;margin-top:8px;font-size:13px;font-weight:600;color:var(--ink)}

/* 眼睛测试结果条（遥测风）*/
.eye-stat{display:flex;justify-content:space-between;gap:8px;margin-top:16px}
.eye-stat .s{flex:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 8px;text-align:center}
.eye-stat .s b{display:block;font-family:var(--font-mono);font-size:17px;color:var(--primary);font-weight:700}
.eye-stat .s span{font-size:11px;color:var(--text-2)}

/* ============ 报告（招牌遥测仪表）============ */
.report{background:var(--dark-2);background-image:var(--grad-hero);color:#fff}
.report::before{content:"";position:absolute;inset:0;background-image:var(--grid-dark);background-size:32px 32px;
  opacity:.5;-webkit-mask-image:radial-gradient(90% 80% at 50% 0%,#000,transparent 78%);
  mask-image:radial-gradient(90% 80% at 50% 0%,#000,transparent 78%);pointer-events:none}
.report>*{position:relative}
.report .sec-title{color:#fff}
.report .sec-sub{color:var(--text-on-dark)}
.report-card{background:rgba(255,255,255,.04);border:1px solid var(--line-dark);
  border-radius:var(--r-lg);padding:24px;margin-top:26px;backdrop-filter:blur(4px)}
.score-row{display:flex;align-items:center;gap:20px}
.score-big{font-family:var(--font-mono);font-size:var(--fs-score);font-weight:700;line-height:1;color:var(--accent)}
.score-big small{font-size:18px;color:rgba(255,255,255,.5);font-weight:400}
.score-row .meta{font-size:13px;color:var(--text-on-dark)}
.score-row .meta .up{font-family:var(--font-mono);color:var(--success);font-weight:700}
.radar-wrap{display:flex;justify-content:center;margin:8px 0 4px}
.top3{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.top3 .t{display:flex;gap:13px;align-items:center;background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);border-radius:var(--r-sm);padding:13px 15px}
.top3 .rank{flex:none;width:26px;height:26px;border-radius:7px;background:var(--grad-badge);
  display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:13px;color:#fff}
.top3 p{font-size:13.5px;color:rgba(255,255,255,.86)}
.top3 p b{color:#fff}

/* AI 标注清单 */
.annot{background:var(--bg)}
.annot-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.annot-chip{font-size:12.5px;font-weight:600;color:var(--ink);background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:9px 14px;
  display:flex;align-items:center;gap:7px}
.annot-chip .d{width:6px;height:6px;border-radius:50%;background:var(--goal-orange)}

/* ============ 对比表 ============ */
.compare{background:var(--bg-secondary)}
.ctable{margin-top:26px;background:var(--surface);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid var(--line)}
.ctable .crow{display:grid;grid-template-columns:1.1fr 1fr 1.1fr;border-bottom:1px solid var(--line)}
.ctable .crow:last-child{border-bottom:none}
.ctable .crow.head{background:var(--dark);color:#fff}
.ctable .crow.head .cc{font-family:var(--font-display);font-weight:700}
.ctable .crow.head .cc.hi{color:var(--accent)}
.ctable .cc{padding:14px 12px;font-size:12.5px;line-height:1.5;border-left:1px solid var(--line)}
.ctable .cc.hi{background:rgba(26,110,110,.05)}
.ctable .cc:first-child{border-left:none;font-weight:700;color:var(--ink);background:var(--bg)}
.ctable .crow.head .cc:first-child{background:transparent;color:#fff}

/* ============ 流程 ============ */
.flow{background:var(--bg)}
.steps{margin-top:28px;position:relative;padding-left:6px}
.step{display:flex;gap:18px;padding-bottom:26px;position:relative}
.step:last-child{padding-bottom:0}
.step .num{flex:none;width:40px;height:40px;border-radius:11px;background:var(--dark);
  color:var(--accent-lime);font-family:var(--font-mono);font-weight:700;font-size:15px;
  display:grid;place-items:center;z-index:1;border:1px solid var(--line-dark-strong)}
.step:not(:last-child)::before{content:"";position:absolute;left:19px;top:44px;bottom:2px;
  width:2px;background:linear-gradient(var(--ring-green),var(--line))}
.step .body h4{font-size:16px;color:var(--ink)}
.step .body p{font-size:13.5px;color:var(--text-2);margin-top:6px}

/* ============ 会员 ============ */
.member{background:var(--bg-secondary)}
.plans{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.plan{background:var(--surface);border-radius:var(--r-lg);padding:24px;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.plan.pro{background:var(--dark);background-image:var(--grad-hero);color:#fff;border-color:var(--line-dark-strong);
  box-shadow:var(--shadow-lift)}
.plan .ph{display:flex;align-items:center;justify-content:space-between}
.plan h3{font-size:20px;color:var(--ink)}
.plan.pro h3{color:#fff}
.plan .badge{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.5px;padding:5px 11px;
  border-radius:var(--r-pill);background:var(--accent);color:var(--ink)}
.plan .ps{font-size:13.5px;color:var(--text-2);margin-top:8px}
.plan.pro .ps{color:var(--text-on-dark)}
.plan ul{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:11px}
.plan li{font-size:14px;display:flex;gap:9px;align-items:flex-start}
.plan li svg{flex:none;margin-top:2px}
.plan.pro li{color:#fff}

/* ============ 拍摄预检 ============ */
.precheck{background:var(--bg)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{font-size:13px;font-weight:600;color:var(--ink);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:9px 15px;display:flex;align-items:center;gap:8px}
.chip .ck{width:18px;height:18px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:11px;flex:none}

/* ============ FAQ ============ */
.faq{background:var(--bg-secondary)}
.faq-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border-radius:var(--r-card);border:1px solid var(--line);overflow:hidden;transition:border-color var(--dur-2)}
.faq-item.open{border-color:var(--line-strong)}
.faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:18px;
  font-family:var(--font-display);font-size:15.5px;font-weight:600;color:var(--ink);display:flex;
  justify-content:space-between;align-items:center;gap:12px}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;border-radius:var(--r-card)}
.faq-q .pm{flex:none;width:24px;height:24px;border-radius:50%;background:var(--bg);color:var(--primary);
  display:grid;place-items:center;font-size:18px;transition:transform var(--dur-2) var(--ease-out)}
.faq-item.open .faq-q .pm{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--dur-2) var(--ease-out)}
.faq-a p{padding:0 18px 18px;font-size:14.5px;color:var(--text-2);line-height:1.72;font-family:var(--font-sans)}

/* ============ 底部 CTA ============ */
.final{background:var(--dark-2);background-image:var(--grad-hero);color:#fff;text-align:center;padding:72px 22px;position:relative;overflow:hidden}
.final::before{content:"";position:absolute;inset:0;background-image:var(--grid-dark);background-size:40px 40px;
  opacity:.5;-webkit-mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent 75%);
  mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent 75%);pointer-events:none}
.final>*{position:relative}
.final h2{font-size:var(--fs-h2);line-height:1.18;color:#fff}
.final p{margin-top:16px;font-size:var(--fs-sub);color:var(--text-on-dark)}
.final .btn{margin-top:28px}
.final .sub-cta{margin-top:16px;font-size:13.5px;color:var(--ring-green)}

/* ============ 页脚（多页共享）============ */
.site-footer{background:var(--dark-2);color:rgba(255,255,255,.6);padding:48px 22px 42px;font-size:12.5px;line-height:1.9}
.site-footer .ft-inner{max-width:var(--content);margin:0 auto}
.site-footer .ft-cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px 20px}
.site-footer .ft-col h4{color:#fff;font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:1px;
  text-transform:uppercase;margin-bottom:12px}
.site-footer .ft-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.site-footer .ft-col a{color:rgba(255,255,255,.6)}
.site-footer .ft-col a:hover{color:var(--ring-green)}
.site-footer .ft-social{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.site-footer .ft-social a{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--line-dark);display:grid;place-items:center;color:rgba(255,255,255,.75);
  font-size:11px;font-weight:700}
.site-footer .ft-social a:hover{background:rgba(63,179,179,.18);color:#fff}
.site-footer .ft-bottom{margin-top:32px;padding-top:22px;border-top:1px solid var(--line-dark)}
.site-footer .fname{color:#fff;font-weight:700;font-size:14px;margin-bottom:8px}
.site-footer a.link-green{color:var(--ring-green)}
.site-footer .beian{margin-top:8px;color:rgba(255,255,255,.42)}
@media (min-width:768px){
  .site-footer .ft-cols{grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}
}

/* ============ Sticky 迷你 CTA ============ */
.sticky-cta{position:fixed;left:50%;bottom:16px;transform:translate(-50%,150%);
  width:calc(min(var(--maxw),100vw) - 36px);max-width:444px;z-index:50;
  transition:transform var(--dur-3) var(--ease-out)}
.sticky-cta.show{transform:translate(-50%,0)}
.sticky-cta .btn{height:52px;box-shadow:var(--shadow-lift)}

/* ============ 小屏微调 ============ */
@media (max-width:360px){
  .grid2{grid-template-columns:minmax(0,1fr)}
  .dim-grid{grid-template-columns:minmax(0,1fr)}
}

/* ============ 响应式：平板 / 桌面（≥768px）============ */
@media (min-width:768px){
  .wrap{max-width:none;box-shadow:none}
  .hero,section,.page-hero,.final{
    padding-left:max(48px,calc((100% - var(--content)) / 2));
    padding-right:max(48px,calc((100% - var(--content)) / 2));
  }
  section{padding-top:96px;padding-bottom:96px}
  .page-hero{padding-top:72px;padding-bottom:60px}
  .sec-sub,.hero .lead,.page-hero .lead{max-width:64ch}

  /* Hero 两栏 */
  .hero{padding-top:96px;padding-bottom:96px}
  .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
  .hero-copy{max-width:640px}
  .hero .lead{margin-top:22px}
  .hero-cta{flex-direction:row;flex-wrap:wrap;gap:14px}
  .hero-cta .btn{width:auto;min-width:210px}
  .phone{margin:0 0 0 auto;width:min(340px,100%)}
  .page-hero .hero-cta{flex-direction:row}
  .page-hero .hero-cta .btn{width:auto;min-width:210px}

  /* 痛点：两栏清单 */
  .pain-list{display:grid;grid-template-columns:1fr 1fr;column-gap:40px;border-top:1px solid var(--line)}

  /* 适合谁：4 列 */
  .grid2{grid-template-columns:repeat(4,minmax(0,1fr))}

  /* 功能：交替非对称大面板（仅作用于含 .feat-media 包装的首页功能块，不影响子页）*/
  .feature-grid{margin-top:20px}
  .feature:has(> .feat-media){display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
    padding-top:64px;margin-top:64px}
  .feature:has(> .feat-media):first-of-type{padding-top:0;margin-top:36px}
  .feat-media{margin-top:0}
  .feature:nth-child(even) .feat-text{order:2}
  .feature:nth-child(even) .feat-media{order:1}
  .dim-grid{align-self:stretch}

  /* 报告卡居中 */
  .report-card{max-width:820px;margin-left:auto;margin-right:auto;padding:36px}
  .report-card .radar-wrap svg{width:300px;height:273px}

  /* 收窄区块 */
  .ctable{max-width:860px;margin-left:auto;margin-right:auto}
  .steps{max-width:720px}
  .faq-list{max-width:820px}
  .annot-list,.chips,.pain-list,.intro .sec-sub{max-width:900px}

  /* 会员两栏 */
  .plans{flex-direction:row;align-items:stretch}
  .plans .plan{flex:1}

  /* 博客网格 */
  .post-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));margin-left:auto;margin-right:auto}

  .final{padding-top:112px;padding-bottom:112px}
  .final p{max-width:60ch;margin-left:auto;margin-right:auto}
  .final .btn{width:auto;min-width:260px}

  .sticky-cta{display:none}
}

/* 大屏：功能面板不至于过宽 */
@media (min-width:1180px){
  .feature{gap:72px}
}

/* ============ 门控 ============ */
.entry-gated{display:none !important}

/* ============ 减少动效 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.12s !important;scroll-behavior:auto !important}
  .reveal{transform:none}
  .btn:hover,.post-card:hover{transform:none}
}