:root{
  --green:#2F7D6D;--green-deep:#245f54;--pink:#E88AAE;--ink:#1F2A2E;--text:#2A3133;--muted:#6F787A;
  --paper:#FAFBF8;--soft:#F2F5F1;--orange:#F29A3F;--white:#fff;--line:#dfe6df;--shadow:0 18px 50px rgba(31,42,46,.09);
  --radius:24px;--radius-sm:14px;--shell:min(1180px,calc(100% - 40px));--ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:var(--shell);margin-inline:auto}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.skip-link{position:fixed;left:16px;top:16px;z-index:200;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;transform:translateY(-160%);transition:transform .2s}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:100;background:rgba(250,251,248,.92);border-bottom:1px solid rgba(223,230,223,.85);backdrop-filter:blur(16px)}.header-row{min-height:78px;display:flex;align-items:center;gap:24px}.brand-lockup{display:flex;align-items:center;gap:11px;min-width:max-content}.brand-lockup img{width:44px;height:44px;object-fit:contain;border-radius:12px}.brand-copy{display:grid;line-height:1.15}.brand-copy strong{font-size:1.08rem;color:var(--ink)}.brand-copy small{margin-top:5px;color:var(--muted);font-size:.74rem}.primary-nav{display:flex;align-items:center;gap:6px;margin-left:auto}.primary-nav a{padding:9px 11px;border-radius:11px;font-size:.92rem;color:#445053}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:#e9f1ed;color:var(--green-deep)}.header-search{display:flex;align-items:center;border:1px solid var(--line);background:#fff;border-radius:999px;overflow:hidden}.header-search input{width:200px;border:0;background:transparent;padding:9px 0 9px 14px;outline:0}.header-search button{border:0;background:var(--green);color:white;padding:9px 14px}.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px 12px;color:var(--ink)}
main{min-height:70vh}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green-deep);font-weight:750;letter-spacing:.08em;font-size:.78rem;text-transform:uppercase}.eyebrow:before{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px}h1,h2,h3{color:var(--ink);line-height:1.22;margin:0}h1{font-size:clamp(2.35rem,5.6vw,5.1rem);letter-spacing:-.055em}h2{font-size:clamp(1.65rem,3.2vw,3rem);letter-spacing:-.035em}h3{font-size:1.15rem;letter-spacing:-.016em}p{margin:0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:14px;font-weight:760;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--green);color:#fff;box-shadow:0 10px 24px rgba(47,125,109,.22)}.button.primary:hover{background:var(--green-deep)}.button.ghost{border:1px solid #cdd9d3;background:rgba(255,255,255,.72);color:var(--ink)}.button.dark{background:var(--ink);color:#fff}.text-link{font-weight:760;color:var(--green-deep);white-space:nowrap}.text-link:hover{text-decoration:underline}.section-space{padding-block:86px}.section-head{max-width:720px}.section-head h2{margin-top:8px}.section-head p{margin-top:14px;color:var(--muted);font-size:1.02rem}.split-head{max-width:none;display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}.split-head>div{max-width:760px}
.home-lead{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:52px;align-items:center;padding-block:66px 52px}.lead-copy h1{margin-top:14px}.lead-intro{font-size:clamp(1.05rem,1.7vw,1.28rem);color:#556063;max-width:760px;margin-top:22px}.lead-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.topic-strip{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.topic-strip span,.topic-strip a{background:#edf3ef;color:#4d5b57;border:1px solid #dde8e1;border-radius:999px;padding:7px 11px;font-size:.85rem}.lead-visual{position:relative;min-height:500px;border-radius:32px;overflow:hidden;background:var(--soft);box-shadow:var(--shadow)}.lead-visual img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}.lead-visual:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(18,35,32,.82))}.lead-visual .visual-badge,.lead-visual strong{position:absolute;z-index:2;left:26px}.visual-badge{top:24px;background:rgba(250,251,248,.9);color:var(--green-deep);padding:7px 11px;border-radius:999px;font-weight:760;font-size:.82rem}.lead-visual strong{bottom:26px;color:#fff;font-size:clamp(1.35rem,2.5vw,2.25rem);line-height:1.2;right:30px}
.feed-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.6fr);gap:34px;align-items:start}.feed-list{border-top:1px solid var(--line)}.feed-item{padding:24px 4px;border-bottom:1px solid var(--line)}.feed-meta{display:flex;flex-wrap:wrap;gap:8px 13px;color:var(--muted);font-size:.78rem}.feed-meta span:first-child{color:var(--green-deep);font-weight:760}.feed-item h3{font-size:1.35rem;margin-top:8px}.feed-item p{color:#556063;margin-top:9px}.point-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.point-row span{font-size:.78rem;padding:6px 9px;border-radius:8px;background:var(--soft);color:#5c6768}.side-stack{display:grid;gap:18px;position:sticky;top:100px}.image-panel{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}.image-panel img{aspect-ratio:3/2;object-fit:cover}.image-panel div{padding:20px}.image-panel h3{margin-top:7px}.image-panel p{margin-top:10px;color:var(--muted)}.compact-panel{display:grid;background:var(--ink);color:#fff;border-radius:22px;padding:20px}.compact-panel strong{margin-bottom:8px}.compact-panel a{padding:10px 0;border-top:1px solid rgba(255,255,255,.12);color:#dfe8e5}.compact-panel a:hover{color:#fff}
.topic-band{background:#eaf2ed;padding-block:82px}.topic-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px}.topic-grid .section-head{position:sticky;top:110px;align-self:start}.topic-grid .section-head .button{margin-top:22px}.tracking-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.tracking-cards article{background:rgba(255,255,255,.8);border:1px solid #d9e6de;border-radius:18px;padding:20px}.tracking-cards article span{font-size:.75rem;color:var(--green-deep);font-weight:760}.tracking-cards h3{margin-top:7px}.tracking-cards p{margin-top:9px;color:var(--muted);font-size:.92rem}.video-preview .split-head{margin-bottom:24px}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.video-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s}.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.video-card img{width:100%;aspect-ratio:16/10;object-fit:cover}.video-card>div:last-child{padding:18px}.video-card span{font-size:.75rem;color:var(--green-deep);font-weight:760}.video-card h3,.video-card h2{margin-top:6px;font-size:1.18rem}.video-card p{margin-top:8px;color:var(--muted);font-size:.92rem}.community-slim{margin-bottom:86px;padding:28px 32px;border:1px solid var(--line);background:#fff;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:30px}.community-slim h2{font-size:1.7rem;margin-top:6px}.community-slim p{margin-top:8px;color:var(--muted);max-width:760px}
.page-hero{padding-block:56px 42px}.narrow-hero{display:grid;grid-template-columns:1.05fr .55fr;gap:46px;align-items:center}.narrow-hero h1{font-size:clamp(2.3rem,4.8vw,4.35rem);margin-top:12px}.narrow-hero p{font-size:1.08rem;color:var(--muted);margin-top:18px;max-width:760px}.narrow-hero img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.filter-bar{display:flex;gap:8px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid var(--line)}.chip{border:1px solid #d8e1db;background:#fff;color:#52605c;border-radius:999px;padding:8px 12px}.chip:hover,.chip.is-active{background:var(--green);border-color:var(--green);color:white}.content-stream{padding-bottom:80px}.story-row{display:grid;grid-template-columns:74px minmax(0,1fr) auto;gap:24px;padding:34px 0;border-bottom:1px solid var(--line);align-items:start}.story-row[hidden]{display:none}.story-index{font-weight:800;font-size:1.4rem;color:#a8b7b0;letter-spacing:.04em}.story-main h2{font-size:clamp(1.45rem,2.7vw,2.3rem);margin-top:8px}.story-summary{margin-top:12px;font-size:1.02rem;color:#536061}.story-body{margin-top:18px;display:grid;gap:12px;color:#374143}.check-points{display:flex;flex-wrap:wrap;gap:8px 18px;margin:18px 0 0;padding:0;list-style:none;color:#596564;font-size:.86rem}.check-points li:before{content:"✓";color:var(--green);font-weight:800;margin-right:6px}.story-thumb{width:200px;border-radius:16px;aspect-ratio:3/2;object-fit:cover}.closing-callout{margin-bottom:86px;padding:34px;border-radius:26px;background:#eaf2ed;display:flex;justify-content:space-between;gap:30px;align-items:center}.closing-callout h2{font-size:1.8rem;margin-top:5px}.closing-callout p{margin-top:8px;color:#5a6564;max-width:760px}
.tracking-hero{padding-block:64px;display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:end}.tracking-hero-copy h1{font-size:clamp(2.3rem,4.7vw,4.5rem);margin-top:12px}.tracking-hero-copy p{margin-top:20px;color:var(--muted);font-size:1.08rem}.evidence-meter{display:grid;grid-template-columns:1fr 1fr;gap:12px}.evidence-meter>div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.evidence-meter span{color:var(--orange);font-weight:850;font-size:.78rem}.evidence-meter strong{display:block;color:var(--ink);margin-top:3px}.evidence-meter p{color:var(--muted);font-size:.88rem;margin-top:5px}.timeline-stack{display:grid;gap:18px;margin-top:28px}.timeline-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px}.timeline-title{display:flex;gap:16px}.timeline-title>span{font-size:2rem;font-weight:850;color:#cad6d0;line-height:1}.timeline-title h3{font-size:1.35rem}.timeline-title p{color:var(--muted);margin-top:6px}.timeline-list{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:24px 0 0;padding:0;list-style:none;counter-reset:timeline}.timeline-list li{position:relative;background:var(--soft);border-radius:14px;padding:16px}.timeline-list li:before{counter-increment:timeline;content:counter(timeline);display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--green);color:#fff;font-size:.75rem;font-weight:800;margin-bottom:9px}.timeline-list p{margin-top:5px;color:#586362;font-size:.88rem}.timeline-lesson{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);color:#4e5a58}.tracking-dark{background:var(--ink);padding-block:86px;color:#dbe4e1}.section-head.inverse h2{color:#fff}.section-head.inverse p{color:#adbbb7}.section-head.inverse .eyebrow{color:#b9d8cf}.dark-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px}.dark-grid article{background:#263438;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:20px}.dark-grid span{font-size:.75rem;color:#f7b56e;font-weight:750}.dark-grid h3{color:#fff;margin-top:7px}.dark-grid p{color:#b8c4c1;margin-top:9px;font-size:.92rem}.dark-grid ul{padding-left:18px;margin:12px 0 0;color:#9fb0ab;font-size:.84rem}.evidence-guide{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}.evidence-guide img{border-radius:24px}.evidence-guide h2{margin-top:7px}.evidence-guide p{margin-top:14px;color:var(--muted)}.evidence-guide .text-link{display:inline-block;margin-top:18px}
.video-hero{padding-block:60px;display:grid;grid-template-columns:.85fr 1.15fr;gap:46px;align-items:center}.video-hero h1{font-size:clamp(2.3rem,4.8vw,4.4rem);margin-top:12px}.video-hero p{margin-top:18px;color:var(--muted);font-size:1.06rem}.video-hero figure{margin:0}.video-hero figure img{border-radius:26px;aspect-ratio:16/10;object-fit:cover}.video-hero figcaption{margin-top:10px;color:var(--muted);font-size:.84rem}.video-grid.large{grid-template-columns:repeat(2,1fr)}.video-grid.large .video-card h2{font-size:1.35rem}.media-frame{position:relative}.play-mark{position:absolute;left:18px;bottom:18px;display:grid!important;place-items:center;width:42px;height:42px;border-radius:50%;background:rgba(31,42,46,.86);color:#fff!important}.video-analysis{padding-bottom:80px}.analysis-list{display:grid;gap:16px;margin-top:28px}.analysis-list article{padding:26px;border:1px solid var(--line);border-radius:20px;background:#fff}.analysis-list h3{font-size:1.4rem;margin-top:7px}.analysis-list p{margin-top:10px;color:#55605f}
.community-hero{padding-block:64px;display:grid;grid-template-columns:1.1fr .7fr;gap:58px;align-items:center}.community-hero h1{font-size:clamp(2.35rem,5vw,4.6rem);margin-top:12px}.community-hero p{margin-top:18px;color:var(--muted);font-size:1.08rem}.community-hero .button{margin-top:24px}.phone-mock{justify-self:end;width:min(400px,100%);background:#e9f1ed;border-radius:38px;padding:18px;box-shadow:var(--shadow)}.phone-mock img{border-radius:26px;width:100%;aspect-ratio:3/4;object-fit:cover}.community-note-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.community-note-grid article{padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}.community-note-grid span{font-weight:850;color:var(--orange)}.community-note-grid h2{font-size:1.2rem;margin-top:8px}.community-note-grid p{margin-top:10px;color:var(--muted);font-size:.9rem}.community-focus{background:#edf3ef;padding-block:80px}.focus-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.focus-grid img{border-radius:24px}.focus-grid h2{margin-top:7px}.focus-grid p{margin-top:14px;color:var(--muted)}.focus-grid .text-link{display:inline-block;margin-top:18px}.app-status{display:grid;grid-template-columns:1.1fr .65fr;gap:44px;align-items:center}.app-status h2{margin-top:7px}.app-status p{margin-top:14px;color:var(--muted)}.app-status img{border-radius:22px}
.search-hero{padding-block:64px 34px}.search-hero h1{font-size:clamp(2.3rem,4vw,3.8rem);margin-top:10px}.big-search{display:flex;gap:10px;margin-top:24px;max-width:760px}.big-search input{flex:1;min-width:0;border:1px solid #cfdad4;border-radius:14px;background:#fff;padding:12px 14px;outline:none}.big-search input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(47,125,109,.12)}.search-results{padding-bottom:90px}.result-count{color:var(--muted);margin-bottom:16px}.search-result-card{padding:24px 0;border-top:1px solid var(--line)}.search-result-card h2{font-size:1.45rem;margin-top:7px}.search-result-card p{margin-top:8px;color:var(--muted)}.search-result-card ul{margin:12px 0 0;padding-left:20px;color:#586362}.empty-state{padding:34px;border:1px solid var(--line);border-radius:22px;background:#fff}.empty-state h2{font-size:1.5rem}.empty-state p{margin-top:10px;color:var(--muted)}.empty-state .button{margin-top:18px}.not-found{padding-block:100px;text-align:center;display:grid;justify-items:center}.not-found-code{font-size:clamp(5rem,15vw,11rem);font-weight:900;line-height:.8;color:#d9e5de;letter-spacing:-.08em}.not-found .eyebrow{margin-top:34px}.not-found h1{font-size:clamp(2rem,4.5vw,3.8rem);margin-top:9px}.not-found p{max-width:620px;color:var(--muted);margin-top:14px}
.site-footer{background:#172126;color:#d8e1de;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:44px}.footer-grid>div{display:grid;align-content:start;gap:8px}.footer-brand{font-size:1.3rem;font-weight:820;color:#fff}.footer-grid p{color:#9eaeaa;max-width:520px}.footer-grid strong{color:#fff;margin-bottom:6px}.footer-grid a{color:#aebdb9}.footer-grid a:hover{color:#fff}.footer-bottom{margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:20px;color:#8fa19c;font-size:.82rem}
:focus-visible{outline:3px solid rgba(242,154,63,.75);outline-offset:3px}@media (max-width:1040px){.header-row{gap:12px}.header-search{display:none}.home-lead,.tracking-hero,.video-hero,.community-hero{grid-template-columns:1fr 1fr;gap:30px}.lead-visual{min-height:430px}.topic-grid{grid-template-columns:1fr}.topic-grid .section-head{position:static}.dark-grid{grid-template-columns:1fr 1fr}.timeline-list{grid-template-columns:1fr 1fr}.community-note-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.2fr .8fr .8fr}}
@media (max-width:820px){:root{--shell:min(100% - 28px,1180px)}.site-header{position:relative}.header-row{min-height:70px;flex-wrap:wrap;padding-block:10px}.nav-toggle{display:inline-flex;align-items:center;gap:7px;margin-left:auto}.primary-nav{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;padding:8px 0 2px}.primary-nav.is-open{display:flex}.primary-nav a{padding:11px 12px}.home-lead,.narrow-hero,.tracking-hero,.video-hero,.community-hero,.evidence-guide,.focus-grid,.app-status{grid-template-columns:1fr}.home-lead{padding-block:42px}.lead-visual{min-height:380px}.narrow-hero img{max-height:360px;width:100%}.feed-layout{grid-template-columns:1fr}.side-stack{position:static;grid-template-columns:1fr 1fr}.topic-grid{gap:30px}.video-grid,.video-grid.large{grid-template-columns:1fr 1fr}.story-row{grid-template-columns:54px 1fr}.story-thumb{grid-column:2;width:100%;max-width:420px}.evidence-meter{margin-top:10px}.community-hero{padding-block:46px}.phone-mock{justify-self:start;width:min(420px,80%)}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media (max-width:620px){:root{--shell:min(100% - 22px,1180px);--radius:18px}.section-space{padding-block:58px}h1{font-size:clamp(2.15rem,12vw,3.45rem)}.split-head{display:block}.split-head .text-link{display:inline-block;margin-top:14px}.lead-actions{display:grid;grid-template-columns:1fr}.lead-visual{min-height:330px;border-radius:24px}.feed-item{padding-block:20px}.side-stack{grid-template-columns:1fr}.tracking-cards,.video-grid,.video-grid.large,.dark-grid,.community-note-grid{grid-template-columns:1fr}.community-slim,.closing-callout{align-items:flex-start;flex-direction:column}.story-row{grid-template-columns:1fr;gap:8px}.story-index{font-size:1rem}.story-thumb{grid-column:auto}.timeline-card{padding:20px}.timeline-list{grid-template-columns:1fr}.evidence-meter{grid-template-columns:1fr 1fr}.tracking-dark{padding-block:60px}.video-hero figure{order:-1}.phone-mock{width:100%}.big-search{flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column}.community-slim{margin-bottom:58px}.page-hero{padding-block:40px 30px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}