:root{
  --bg:#f5f6f1;--paper:#ffffff;--ink:#101913;--muted:#667069;--line:#dce2dc;
  --green:#1A6B37;--green2:#2AA452;--pale:#E8F5EE;--pale2:#D0F0DC;
  --navy:#12333a;--sand:#eee8dd;--orange:#c36b2b;--blue:#386f98;--purple:#7460a8;
  --shadow:0 18px 55px rgba(16,25,19,.08);--radius:28px;--radius-sm:18px;
  --max:1440px;
}
[data-theme="dark"]{
  --bg:#0d1210;--paper:#131a16;--ink:#edf4ef;--muted:#9eaaa2;--line:#26312a;
  --pale:#173121;--pale2:#1a432a;--navy:#d9eeea;--sand:#28251f;--shadow:0 18px 55px rgba(0,0,0,.28);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;transition:background .25s,color .25s}
a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}.shell{max-width:var(--max);margin:0 auto;padding:0 36px}
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.header-inner{height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;min-width:240px}.mark{width:38px;height:38px;border-radius:50%;border:1px solid var(--ink);display:grid;place-items:center;font-weight:900;font-size:13px;letter-spacing:.08em}.brand-copy strong{display:block;font-size:14px;letter-spacing:.08em}.brand-copy small{display:block;font-size:10px;color:var(--muted);margin-top:2px;letter-spacing:.06em}.nav{display:flex;gap:22px;margin-left:auto}.nav a{font-size:12px;color:var(--muted);transition:.2s}.nav a:hover{color:var(--ink)}.controls{display:flex;gap:8px}.icon-btn{height:36px;min-width:36px;padding:0 11px;border:1px solid var(--line);border-radius:999px;background:var(--paper);cursor:pointer;font-size:11px}.icon-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.hero{padding:58px 0 30px}.hero-grid{display:grid;grid-template-columns:1.42fr .58fr;gap:22px}.hero-main{min-height:520px;border-radius:36px;padding:50px;position:relative;overflow:hidden;color:#f7fbf8;background:radial-gradient(circle at 80% 20%,rgba(90,215,130,.28),transparent 28%),radial-gradient(circle at 18% 85%,rgba(82,126,118,.35),transparent 33%),linear-gradient(145deg,#173b32,#0f2a28 60%,#122f39)}
.hero-main:after{content:"";position:absolute;right:-8%;bottom:-20%;width:52%;aspect-ratio:1;border-radius:50%;border:1px solid rgba(255,255,255,.16);box-shadow:0 0 0 42px rgba(255,255,255,.03),0 0 0 88px rgba(255,255,255,.025)}
.eyebrow{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#b9d7ca}.hero h1{font-size:clamp(42px,5vw,82px);line-height:.98;letter-spacing:-.045em;margin:19px 0 24px;max-width:950px}.hero-main p{font-size:16px;line-height:1.75;color:#c9d8d1;max-width:720px}.hero-actions{display:flex;gap:10px;margin-top:32px}.btn{border:1px solid rgba(255,255,255,.22);padding:12px 16px;border-radius:999px;font-size:12px;background:transparent;cursor:pointer}.btn.primary{background:#eff8f1;color:#173d2a;border-color:#eff8f1;font-weight:800}.btn:hover{transform:translateY(-2px)}
.hero-side{display:grid;grid-template-rows:1fr 1fr;gap:22px}.side-card{border-radius:30px;background:var(--paper);border:1px solid var(--line);padding:27px;display:flex;flex-direction:column;justify-content:space-between;min-height:249px;transition:.25s}.side-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.side-card .mini-label{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}.side-card h3{font-size:25px;line-height:1.08;letter-spacing:-.02em;margin:14px 0}.side-card p{font-size:12px;line-height:1.65;color:var(--muted)}.meta{font-size:10px;color:var(--muted);display:flex;gap:10px;align-items:center}.dot{width:6px;height:6px;border-radius:50%;background:var(--green2)}
.section{padding:52px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head h2{font-size:38px;letter-spacing:-.03em;margin:0}.section-head p{max-width:620px;color:var(--muted);font-size:13px;line-height:1.7;margin:0}.section-index{font-size:11px;color:var(--muted);letter-spacing:.12em}
.lines-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.line-card{min-height:270px;padding:25px;border-radius:25px;border:1px solid var(--line);background:var(--paper);position:relative;overflow:hidden;transition:.25s}.line-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.line-card:after{content:"";position:absolute;width:170px;height:170px;border-radius:50%;right:-65px;bottom:-65px;background:var(--accent-soft)}.line-no{font-size:10px;color:var(--muted);letter-spacing:.16em}.line-card h3{font-size:27px;letter-spacing:-.025em;margin:52px 0 9px;max-width:260px;position:relative;z-index:2}.line-card p{font-size:12px;line-height:1.65;color:var(--muted);max-width:330px;position:relative;z-index:2}.line-link{display:inline-flex;gap:8px;align-items:center;margin-top:15px;font-size:11px;font-weight:800;position:relative;z-index:2}.weekly{--accent-soft:#d8f0df}.wearables{--accent-soft:#d9e9ef}.sleep{--accent-soft:#ece4d8}.exo{--accent-soft:#e0def0}.earnings{--accent-soft:#f0dfd5}.news{--accent-soft:#dcebdc}
.feature-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}.feature-lead{border-radius:30px;overflow:hidden;background:var(--paper);border:1px solid var(--line);min-height:480px;display:grid;grid-template-rows:250px 1fr;transition:.25s}.feature-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.cover{position:relative;overflow:hidden;background:#18372d;aspect-ratio:16/9}.cover:before,.cover:after{content:"";position:absolute;border-radius:50%}.cover:before{width:44%;aspect-ratio:1;border:1px solid rgba(255,255,255,.35);right:10%;top:-25%}.cover:after{width:32%;aspect-ratio:1;background:rgba(255,255,255,.07);left:10%;bottom:-25%}.cover-label{position:absolute;left:24px;top:22px;color:white;font-size:11px;letter-spacing:.15em;text-transform:uppercase}.cover-title{position:absolute;left:24px;bottom:22px;color:#fff;font-size:38px;line-height:1;letter-spacing:-.04em;max-width:75%}.cover.wearable-cover{background:linear-gradient(145deg,#143844,#2b6b73)}.cover.sleep-cover{background:linear-gradient(145deg,#303c49,#8e7d6d)}.cover.exo-cover{background:linear-gradient(145deg,#29283a,#5f5b88)}.cover.earnings-cover{background:linear-gradient(145deg,#3a2c26,#9b6748)}.cover.news-cover{background:linear-gradient(145deg,#173b32,#4e8160)}
.article-copy{padding:26px 28px 30px}.article-copy .tagline{font-size:10px;color:var(--green);font-weight:800;letter-spacing:.08em}.article-copy h3{font-size:29px;line-height:1.12;letter-spacing:-.025em;margin:10px 0}.article-copy p{font-size:13px;line-height:1.7;color:var(--muted)}.article-copy .meta{margin-top:20px}.feature-list{display:grid;gap:12px}.story-row{padding:20px;border-radius:22px;border:1px solid var(--line);background:var(--paper);display:grid;grid-template-columns:130px 1fr;gap:18px;align-items:center;transition:.22s}.story-row:hover{transform:translateX(4px);box-shadow:var(--shadow)}.story-thumb{width:130px;aspect-ratio:4/3;border-radius:14px;background:linear-gradient(145deg,#1e3d33,#6a8c79);position:relative;overflow:hidden}.story-thumb:after{content:"";position:absolute;width:70%;height:1px;background:rgba(255,255,255,.55);transform:rotate(-24deg);left:15%;top:50%}.story-row h4{font-size:18px;line-height:1.25;margin:3px 0 8px}.story-row p{font-size:11px;color:var(--muted);line-height:1.55;margin:0 0 12px}.story-row .small{font-size:9px;color:var(--muted)}
.signal-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);margin-top:16px}.signal{padding:24px 16px}.signal+ .signal{border-left:1px solid var(--line)}.signal b{font-size:31px;letter-spacing:-.03em}.signal small{display:block;margin-top:6px;color:var(--muted);font-size:10px;letter-spacing:.08em;text-transform:uppercase}
.about{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px;padding:64px 0}.about h2{font-size:50px;line-height:1;margin:0}.about p{font-size:16px;line-height:1.9;color:var(--muted);margin:0}.about strong{color:var(--ink)}
.footer{border-top:1px solid var(--line);padding:34px 0 48px}.footer-grid{display:flex;justify-content:space-between;gap:30px}.footer b{font-size:14px;letter-spacing:.08em}.footer p{font-size:11px;color:var(--muted);max-width:540px;line-height:1.7}.footer-nav{display:flex;gap:18px;align-items:flex-start}.footer-nav a{font-size:11px;color:var(--muted)}
/* category */.page-hero{padding:55px 0 28px}.page-kicker{font-size:10px;color:var(--green);letter-spacing:.18em;text-transform:uppercase}.page-hero h1{font-size:70px;letter-spacing:-.05em;margin:12px 0}.page-hero p{font-size:16px;line-height:1.8;color:var(--muted);max-width:760px}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:20px 0 70px}.article-card{border:1px solid var(--line);background:var(--paper);border-radius:24px;overflow:hidden;transition:.24s}.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.article-card .cover{aspect-ratio:16/10}.article-card .cover-title{font-size:27px}.article-card .article-copy{padding:22px}.article-card .article-copy h3{font-size:21px}.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}.pill{border:1px solid var(--line);background:var(--paper);padding:9px 13px;border-radius:999px;font-size:11px;color:var(--muted)}
/* article */.article-hero{padding:56px 0 20px}.article-hero .source-line{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:11px}.article-hero h1{font-size:clamp(42px,5vw,78px);letter-spacing:-.05em;line-height:1.02;max-width:1120px;margin:18px 0 25px}.article-hero .dek{font-size:19px;line-height:1.75;color:var(--muted);max-width:880px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:80px;justify-content:center;padding:30px 0 80px}.prose{font-family:"Noto Serif SC","Songti SC",Georgia,serif}.prose p{font-size:18px;line-height:2;color:color-mix(in srgb,var(--ink) 86%,var(--muted));margin:0 0 26px}.prose h2{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;font-size:31px;letter-spacing:-.025em;margin:48px 0 18px}.quote{border-left:3px solid var(--green2);padding:5px 0 5px 22px;font-size:24px;line-height:1.5;margin:38px 0}.source-box{position:sticky;top:105px;height:max-content;padding:20px;border:1px solid var(--line);border-radius:20px;background:var(--paper)}.source-box h4{font-size:12px;margin:0 0 10px}.source-box p{font-size:11px;color:var(--muted);line-height:1.65}.source-btn{display:block;margin-top:14px;padding:10px 12px;border-radius:10px;background:var(--ink);color:var(--bg);font-size:11px;text-align:center}
.sync-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid var(--line);background:var(--paper);border-radius:18px;padding:14px 18px;margin:28px 0 0}.sync-banner span{font-size:11px;color:var(--muted)}.sync-banner b{font-size:11px}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#45b96b;margin-right:7px;box-shadow:0 0 0 4px color-mix(in srgb,#45b96b 15%,transparent)}
@media(max-width:1100px){.nav{display:none}.hero-grid,.feature-grid,.about{grid-template-columns:1fr}.hero-side{grid-template-columns:1fr 1fr;grid-template-rows:auto}.lines-grid,.article-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr;gap:20px}.source-box{position:static}.signal-strip{grid-template-columns:repeat(2,1fr)}.signal:nth-child(3){border-left:0;border-top:1px solid var(--line)}.signal:nth-child(4){border-top:1px solid var(--line)}}
@media(max-width:700px){.shell{padding:0 18px}.brand{min-width:0}.brand-copy small{display:none}.header-inner{height:66px}.hero{padding-top:24px}.hero-main{padding:30px;min-height:450px}.hero-main h1{font-size:46px}.hero-side{grid-template-columns:1fr}.section{padding:36px 0}.section-head{display:block}.section-head h2{font-size:31px;margin-bottom:10px}.lines-grid,.article-grid{grid-template-columns:1fr}.story-row{grid-template-columns:96px 1fr}.story-thumb{width:96px}.about h2{font-size:40px}.page-hero h1{font-size:48px}.article-hero h1{font-size:44px}.article-hero .dek{font-size:16px}.prose p{font-size:17px}.footer-grid{display:block}.footer-nav{margin-top:20px;flex-wrap:wrap}.signal-strip{grid-template-columns:1fr 1fr}.controls .lang-full{display:none}}

/* WeChat contact */
body.modal-open{overflow:hidden}.contact-trigger{border-color:color-mix(in srgb,var(--green2) 45%,var(--line));color:var(--green);font-weight:800}.footer-contact{border:0;background:none;padding:0;color:var(--muted);font:inherit;font-size:11px;cursor:pointer}.footer-contact:hover,.contact-trigger:hover{color:var(--green2)}
.contact-section{padding-top:12px}.contact-band{border-top:1px solid var(--line);padding-top:52px;display:grid;grid-template-columns:1fr 420px;gap:70px;align-items:center}.contact-band h2{font-size:42px;letter-spacing:-.035em;margin:9px 0 14px}.contact-band p{max-width:720px;color:var(--muted);font-size:14px;line-height:1.8;margin:0}.wechat-cta{display:flex;align-items:center;gap:16px;border:1px solid var(--line);background:var(--paper);border-radius:24px;padding:20px 22px;text-align:left;cursor:pointer;transition:.25s;box-shadow:none}.wechat-cta:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--green2) 45%,var(--line))}.wechat-cta-icon,.wechat-badge{display:grid;place-items:center;background:#07c160;color:white;font-weight:900;border-radius:14px}.wechat-cta-icon{width:48px;height:48px;font-size:20px;flex:0 0 auto}.wechat-cta span:nth-child(2){display:grid;gap:4px;flex:1}.wechat-cta small{font-size:9px;color:var(--muted);letter-spacing:.12em}.wechat-cta strong{font-size:17px}.wechat-cta b{font-size:24px;font-weight:400;color:var(--muted)}
.contact-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .2s}.contact-modal.open{opacity:1;pointer-events:auto}.contact-backdrop{position:absolute;inset:0;border:0;background:rgba(5,13,9,.56);backdrop-filter:blur(8px);cursor:default}.contact-panel{position:relative;width:min(520px,100%);background:var(--paper);border:1px solid var(--line);border-radius:30px;padding:34px;box-shadow:0 30px 100px rgba(0,0,0,.28);transform:translateY(10px) scale(.98);transition:transform .2s}.contact-modal.open .contact-panel{transform:none}.contact-close{position:absolute;right:18px;top:16px;border:0;background:transparent;font-size:27px;line-height:1;color:var(--muted);cursor:pointer}.contact-kicker{font-size:10px;letter-spacing:.18em;color:var(--green);font-weight:800}.wechat-badge{width:56px;height:56px;font-size:22px;margin-top:22px}.contact-panel h3{font-size:34px;letter-spacing:-.035em;margin:20px 0 10px}.contact-lead{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 22px}.wechat-account{display:grid;gap:5px;padding:18px;border-radius:18px;background:var(--pale);border:1px solid color-mix(in srgb,var(--green2) 18%,var(--line))}.wechat-account span{font-size:10px;color:var(--muted);letter-spacing:.08em}.wechat-account strong{font-size:22px}.wechat-account small{font-size:10px;color:var(--muted)}.contact-steps{margin:20px 0 0;padding-left:22px;color:var(--muted);font-size:12px;line-height:1.9}.copy-wechat{width:100%;margin-top:18px;padding:13px 16px;border:0;border-radius:13px;background:var(--ink);color:var(--bg);font-weight:800;font-size:12px;cursor:pointer}.copy-note{min-height:18px;text-align:center;font-size:10px;color:var(--green2);margin-top:8px}
@media(max-width:1100px){.contact-band{grid-template-columns:1fr;gap:24px}.wechat-cta{max-width:520px}.contact-trigger{display:inline-flex}}
@media(max-width:700px){.contact-trigger{padding:0 10px}.contact-band{padding-top:36px}.contact-band h2{font-size:31px}.contact-panel{padding:28px 22px 22px;border-radius:24px}.contact-panel h3{font-size:29px}.wechat-cta{width:100%}.footer-nav{gap:14px}}


/* v3.2 long-form editorial article system */
.metric-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin:18px 0 44px}.metric-item{background:var(--bg);padding:22px 24px;display:flex;flex-direction:column;gap:5px}.metric-item strong{font-family:Arial,sans-serif;font-size:30px;line-height:1;color:var(--ink)}.metric-item span{font-size:12px;color:var(--muted);letter-spacing:.04em}.key-takeaways{border:1px solid var(--line);border-radius:18px;padding:24px 28px;margin:0 0 42px;background:var(--paper)}.key-takeaways ul{margin:14px 0 0;padding-left:20px}.key-takeaways li{margin:10px 0;line-height:1.75;font-size:16px}.article-section{position:relative;border-top:1px solid var(--line);padding-top:34px;margin-top:46px}.article-section:first-of-type{margin-top:20px}.article-section h2{font-size:27px;line-height:1.35;margin:0 0 20px;letter-spacing:-.02em}.article-section p{margin:0 0 22px}.section-count{font-family:Arial,sans-serif;font-size:11px;letter-spacing:.14em;color:var(--green);margin-bottom:10px}.references-block{border-top:2px solid var(--ink);margin-top:64px;padding-top:32px}.references-block h2{margin:8px 0 8px}.reference-note{font-size:14px!important;color:var(--muted)!important;line-height:1.7!important;margin-bottom:20px!important}.reference-list{border-top:1px solid var(--line)}.reference-item{display:grid;grid-template-columns:42px 1fr auto;gap:10px;align-items:center;padding:15px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font-size:14px;line-height:1.5}.reference-item:hover span:nth-child(2){text-decoration:underline}.reference-index{font-family:Arial,sans-serif;font-size:10px;color:var(--green);letter-spacing:.1em}.reference-item b{font-size:15px}.source-anchor{display:block;margin-top:13px;font-size:12px;text-align:center;color:var(--green);text-decoration:none}.source-btn.muted{opacity:.85}.article-wechat-band{margin-top:54px;padding:28px;border-radius:20px;background:linear-gradient(135deg,#123e31,#0b2c24);color:#fff;display:flex;gap:24px;align-items:center;justify-content:space-between}.article-wechat-band h3{margin:6px 0;font-size:22px}.article-wechat-band p{margin:0!important;font-size:14px!important;color:rgba(255,255,255,.76)!important;line-height:1.7!important}.article-wechat-band .source-btn{flex:0 0 auto;background:#fff;color:#102b23;border:0;cursor:pointer}.prose{min-width:0}.prose>p{font-size:18px;line-height:2}.article-hero .source-line{flex-wrap:wrap}
@media(max-width:820px){.metric-strip{grid-template-columns:repeat(2,1fr);margin-bottom:28px}.metric-item{padding:17px}.metric-item strong{font-size:24px}.key-takeaways{padding:20px;margin-bottom:28px}.article-section{margin-top:34px;padding-top:26px}.article-section h2{font-size:23px}.prose>p,.article-section p{font-size:17px!important;line-height:1.9!important}.article-wechat-band{align-items:flex-start;flex-direction:column}.article-wechat-band .source-btn{width:100%}}