@charset "UTF-8";
:root{--ink:#111b2c;--muted:#536075;--navy:#0b1220;--navy2:#172137;--paper:#f6f7f5;--white:#fff;--line:#dfe3e8;--mint:#b9ff65;--orange:#ffba81;--violet:#c9bbff;--radius:24px;--shadow:0 24px 65px rgba(9,24,47,.09);--font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
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.section-shell{padding-top:95px;padding-bottom:96px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:31px}.section-heading h2{font-size:clamp(28px,3vw,43px);margin-bottom:0;letter-spacing:-.052em}.kicker{display:block;color:#668247;font-size:11px;font-weight:800;letter-spacing:.19em;margin-bottom:16px}.text-link{font-size:13px;font-weight:800;display:inline-flex;align-items:center;gap:8px;border-bottom:1px solid #87999d;padding-bottom:4px;white-space:normal}.text-link:hover{color:#4d7f19}.section-note{color:#8e97a3;font-size:13px}.format-tiles{display:grid;grid-template-columns:1.25fr .88fr .88fr;gap:16px}.format-tile{border-radius:22px;min-height:300px;padding:29px 30px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;transition:transform .2s,box-shadow .2s;background:#e9eeea}.format-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.format-tile--wide{background:#d6ebd6}.format-tile--orange{background:#f8dfcd}.format-tile--violet{background:#e4def7}.tile-index{display:block;font-size:12px;font-weight:750;color:#65726c;letter-spacing:.08em;margin-bottom:30px}.format-tile h3{font-size:28px;margin-bottom:11px;position:relative;z-index:2}.format-tile p{font-size:14px;max-width:260px;line-height:1.7;position:relative;z-index:2;color:#52645c}.tile-action{margin-top:20px;font-size:12px;font-weight:800;z-index:2}.format-graphic{position:absolute;pointer-events:none;right:0;bottom:0;opacity:.75}.graphic-vertical{width:140px;height:250px;transform:rotate(21deg) translate(30px,35px);border-radius:20px;border:10px solid #6ba47b}.graphic-vertical i{position:absolute;left:22px;right:22px;top:45px;height:12px;border-radius:12px;background:#85bd98}.graphic-vertical i:nth-child(2){top:70px;right:38px}.graphic-vertical i:nth-child(3){top:95px;right:53px}.graphic-wave{width:180px;height:170px;display:flex;align-items:center;gap:9px;justify-content:center;transform:rotate(-17deg) translate(25px,20px)}.graphic-wave i{width:14px;background:#e5925b;border-radius:20px;height:50px}.graphic-wave i:nth-child(2){height:100px}.graphic-wave i:nth-child(3){height:150px}.graphic-wave i:nth-child(4){height:90px}.graphic-wave i:nth-child(5){height:65px}.graphic-document{width:155px;height:200px;border:18px solid #a998d6;border-radius:60% 0 0 0;transform:rotate(-35deg) translate(12px,55px)}.graphic-document i{display:block;width:70px;height:70px;border:12px solid #a998d6;border-radius:50%;margin:45px 0 0 30px}
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.mobile-opening{background:linear-gradient(180deg,#e9f0e7,transparent 98%);max-width:none;padding-left:max(34px,calc((100vw - 1172px)/2));padding-right:max(34px,calc((100vw - 1172px)/2))}.troubleshooting{padding-top:35px;padding-bottom:70px}.trouble-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 0}.trouble-tabs button{background:white;border:1px solid #d5dfd9;border-radius:50px;padding:12px 22px;font-size:13px;font-weight:700}.trouble-tabs button:hover,.trouble-tabs button.is-active{background:#172c26;color:white;border-color:#172c26}.trouble-panel{background:#e6eee3;padding:42px 45px;display:grid;grid-template-columns:145px 1fr;gap:25px;border-radius:0 20px 20px 20px;align-items:center;min-height:245px}.trouble-icon{font-size:93px;font-weight:300;color:#91a98c;text-align:center;line-height:1}.trouble-panel h3{font-size:27px;margin:0 0 13px}.trouble-panel p{font-size:14px;line-height:1.9;max-width:720px}.trouble-panel a{font-weight:800;font-size:13px;border-bottom:1px solid #86a17e}.fallback-note{font-size:13px}.mobile-steps{padding-bottom:72px}.mobile-steps article{display:grid;grid-template-columns:200px 1fr;border-top:1px solid #d5ddd6;padding:42px 0;gap:35px}.step-side{display:flex;flex-direction:column;gap:14px}.step-side span:first-child{font-size:55px;font-weight:800;letter-spacing:-.08em;color:#bdd0b8;line-height:1}.step-side span:last-child{font-size:12px;color:#758776}.step-main h3{font-size:30px;margin:0 0 17px}.step-main h3 a:hover{color:#478629}.step-main .step-lead{font-weight:700;color:#465f48}.step-main ul{padding-left:20px;color:#627369;line-height:1.95;font-size:14px}.step-main li{margin-bottom:9px}.step-main .text-link{margin-top:12px}
.faq-layout{display:grid;grid-template-columns:1fr 280px;gap:8%;padding-bottom:115px}.faq-filter{display:flex;flex-direction:column;gap:10px;margin-bottom:25px}.faq-filter label{font-weight:750;font-size:13px}.faq-filter input{padding:15px 18px;border:1px solid #c8d4ca;background:white;border-radius:12px;outline:none;width:100%}.faq-filter input:focus{border-color:#668f4e;box-shadow:0 0 0 3px #aad39555}.faq-filter span{font-size:12px;color:#637b61}.faq-list{border-top:1px solid #cfd9ce}.faq-item{border-bottom:1px solid #cfd9ce}.faq-item summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:50px 1fr 35px;align-items:center;gap:15px;padding:24px 0;font-weight:730;font-size:17px}.faq-item summary::-webkit-details-marker{display:none}.faq-index{font-size:12px;color:#8a9f8c;letter-spacing:.1em}.faq-plus{font-size:23px;color:#698d65;text-align:center;transition:transform .2s}.faq-item[open] .faq-plus{transform:rotate(45deg)}.faq-answer{padding:0 56px 24px 65px}.faq-answer p{font-size:14px;line-height:1.95;margin-bottom:0}.faq-aside{background:#e8eee6;border-radius:17px;padding:27px;height:max-content;display:flex;flex-direction:column;gap:20px;position:sticky;top:30px}.faq-aside strong{font-size:16px}.faq-aside a{display:flex;justify-content:space-between;border-bottom:1px solid #cbd7c9;padding-bottom:15px;font-size:13px;font-weight:750}.faq-aside a:hover{color:#518339}.faq-aside p{font-size:12px;line-height:1.9}.empty-state{padding:25px;color:#607363}
.policy-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:8%;padding-bottom:115px}.policy-text section{padding:0 0 32px;margin-bottom:36px;border-bottom:1px solid #d5ded5}.policy-text h2{font-size:27px;margin-bottom:20px}.policy-text p{font-size:15px;line-height:2;max-width:730px}.policy-next{display:flex;flex-direction:column;gap:15px}.policy-next a{font-size:14px;font-weight:800;color:#4c8043}.policy-aside-inner{background:#18302b;color:white;border-radius:22px;padding:35px;position:sticky;top:35px;min-height:390px}.policy-aside-inner>span{font-size:11px;letter-spacing:.16em;color:#a4d596}.policy-lock{font-size:92px;line-height:1.2;color:#b9ff65}.policy-aside h2{font-size:28px}.policy-aside p{font-size:13px;color:#adc7b8;line-height:1.85}.policy-aside a{font-size:13px;color:var(--mint);font-weight:800}
.article-shell{padding-top:34px;padding-bottom:100px}.article-intro{max-width:950px;padding-top:76px;margin-bottom:58px}.article-intro h1{font-size:clamp(38px,5vw,65px);letter-spacing:-.055em;line-height:1.22;margin-bottom:27px}.article-deck{font-size:20px;line-height:1.8;color:#52665a;max-width:820px}.article-tools{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid #ccd8cb;padding-top:21px;margin-top:28px;font-size:12px;color:#849382}.article-tools button{border:0;background:transparent;color:#415f46;font-weight:700}.article-tools button:hover{color:#368116}.article-layout{display:grid;grid-template-columns:230px minmax(0,730px);gap:9%;border-top:1px solid #cbd5cd;padding-top:44px}.article-rail{font-size:12px;color:#859684;align-self:start;position:sticky;top:35px}.article-rail>span{font-size:10px;letter-spacing:.2em;font-weight:800}.rail-rule{margin:18px 0;background:#bed2b8;height:2px;width:70px}.article-rail p{font-size:13px;line-height:1.9}.article-rail a{color:#54833f;font-weight:750}.article-body section{margin:0 0 48px}.article-body h2{font-size:clamp(24px,2.7vw,31px);margin:0 0 18px}.article-body p{font-size:16px;line-height:2.15;letter-spacing:.008em;color:#425349}.article-body section:nth-child(2){padding:27px 30px 3px;border-left:3px solid #86b96f;background:#e9f1e5}.article-conclusion{margin-top:54px;background:#dcebd7;border-radius:18px;padding:31px 36px}.article-conclusion h2{font-size:24px}.article-conclusion p{font-size:15px;margin:0}.article-related{margin-top:100px}.not-found{min-height:60vh;padding-block:100px}.not-found>span{font-size:12px;color:#6a9c5a;font-weight:800;letter-spacing:.15em}.not-found h1{font-size:clamp(38px,6vw,72px);margin:25px 0}.not-found p{max-width:550px}.not-found .button-outline{color:#173327;border-color:#a3b4a6}
@media(min-width:1450px){.hero-grid{min-height:680px}.hero-art{transform:translate(28px,8px)}.section-shell{padding-block:110px}.format-tile{min-height:340px}.essay-card{min-height:300px}}
@media(max-width:1100px){.shell{padding-inline:26px}.brand small{display:none}.desktop-nav a{padding:10px 11px}.hero-grid{gap:0}.hero-art{transform:scale(.88) translateX(5px)}.format-tiles{grid-template-columns:1fr 1fr}.format-tile--wide{grid-column:span 2;min-height:260px}.split-band-inner{grid-template-columns:1fr 1fr}.split-number{grid-column:1/-1;font-size:34px;margin-bottom:-25px}.taxonomy-layout{grid-template-columns:190px 1fr;gap:35px}.article-layout{gap:5%}.faq-layout{gap:30px}.bottom-grid{gap:6%}}
@media(max-width:800px){.shell{padding-inline:22px}.header-inner{height:72px}.desktop-nav{display:none}.nav-toggle{display:flex}.mobile-nav{display:flex;flex-direction:column;gap:3px;position:absolute;top:100%;left:0;right:0;background:#111e30;padding:10px 22px 20px;border-top:1px solid #35445a;visibility:hidden;opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity .2s,transform .2s,visibility .2s;box-shadow:0 20px 36px #0003}.mobile-nav.is-open{visibility:visible;opacity:1;transform:translateY(0);pointer-events:auto}.mobile-nav a{padding:12px 10px;border-bottom:1px solid #263850;color:#e0e8eb;font-weight:700;font-size:14px}.hero-grid{display:flex;flex-direction:column;align-items:stretch}.hero-copy{padding:62px 0 25px}.hero-copy h1{font-size:clamp(45px,8vw,68px)}.hero-art{height:410px;transform:scale(.8);margin-block:-30px}.hero-detail{margin-top:36px}.split-band-inner{grid-template-columns:1fr;gap:26px;padding-block:65px}.split-number{grid-column:auto;margin:0}.signal-panel{min-height:235px}.signal-bars{height:145px}.essay-grid{grid-template-columns:repeat(2,1fr)}.mobile-feature-inner{grid-template-columns:.75fr 1fr;gap:4%}.mobile-illustration{transform:scale(.8);margin-inline:-30px}.footer-layout{grid-template-columns:1.5fr 1fr 1fr;gap:24px}.taxonomy-layout{display:block}.taxonomy-nav{position:static;display:flex;flex-direction:row;flex-wrap:wrap;border:0;padding:0;margin-bottom:35px}.taxonomy-nav a{border:1px solid #ccd7ca;padding:8px 12px;border-radius:30px}.taxonomy-nav strong{width:100%}.page-opening .page-label{margin-top:50px}.watch-comparison{gap:30px}.faq-layout{grid-template-columns:1fr}.faq-aside{position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.faq-aside strong,.faq-aside p{grid-column:1/-1}.policy-layout{grid-template-columns:1fr}.policy-aside-inner{position:static;min-height:auto}.article-layout{grid-template-columns:160px 1fr;gap:27px}.article-intro{padding-top:50px}}
@media(max-width:600px){body{font-size:15px}.shell{padding-inline:19px}.brand{font-size:23px}.hero-copy{padding-top:55px}.hero-copy h1{font-size:44px}.hero-lead{font-size:15px}.hero-actions{gap:10px}.button{padding:12px 17px;font-size:13px;min-height:48px}.hero-detail{gap:13px;margin-top:35px}.hero-art{transform:scale(.73);height:355px;margin-block:-38px}.section-shell{padding-block:64px}.section-heading{align-items:start;gap:15px}.section-heading h2{font-size:29px}.section-heading .text-link{margin-top:5px;font-size:12px}.format-tiles{grid-template-columns:1fr}.format-tile--wide{grid-column:auto}.format-tile{min-height:245px}.format-tile h3{font-size:25px}.format-tile p{max-width:230px}.split-band h2{font-size:33px}.essay-grid{grid-template-columns:1fr}.essay-card{min-height:240px}.mobile-feature-inner{grid-template-columns:1fr;padding-block:20px 65px}.mobile-illustration{height:305px;transform:scale(.68);margin-block:-50px}.mobile-copy h2{font-size:36px}.bottom-grid{grid-template-columns:1fr;gap:28px}.bottom-statement p{font-size:26px}.bottom-list a{grid-template-columns:85px 1fr 14px;gap:10px}.footer-layout{grid-template-columns:1fr 1fr;gap:37px}.footer-intro{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:6px}.page-opening{padding-top:25px;padding-bottom:40px}.page-opening .page-label{margin-top:48px}.page-opening h1{font-size:42px}.page-opening>p{font-size:15px}.format-intro{grid-template-columns:1fr;padding-block:35px 45px;gap:15px}.format-intro-aside{gap:12px}.taxonomy-item{grid-template-columns:45px 1fr;gap:15px;padding-block:27px}.taxonomy-number{font-size:25px}.taxonomy-item h2{font-size:25px}.taxonomy-detail{padding-left:11px}.related-banner{flex-direction:column;align-items:stretch;padding:29px}.related-banner h2{font-size:25px}.watch-comparison{grid-template-columns:1fr;padding-bottom:40px}.watch-article-list article{grid-template-columns:40px 1fr;gap:15px;padding:27px 0}.watch-count{font-size:28px}.watch-article-list h3{font-size:21px}.watch-article-list .arrow-circle{grid-column:2;width:36px;height:36px;font-size:17px}.mini-columns{grid-template-columns:1fr}.mobile-opening{padding-inline:19px}.troubleshooting{padding-top:20px}.trouble-tabs button{flex:1;min-width:calc(50% - 5px);padding:12px}.trouble-panel{grid-template-columns:1fr;padding:30px 25px;gap:4px}.trouble-icon{display:none}.trouble-panel h3{font-size:23px}.mobile-steps article{grid-template-columns:1fr;gap:10px;padding:30px 0}.step-side{flex-direction:row;align-items:center;gap:20px}.step-side span:first-child{font-size:38px}.step-main h3{font-size:25px}.faq-item summary{font-size:15px;grid-template-columns:30px 1fr 25px;gap:9px}.faq-answer{padding:0 17px 23px 39px}.faq-aside{display:flex}.policy-text h2{font-size:24px}.article-intro{padding-top:43px;margin-bottom:32px}.article-intro h1{font-size:39px}.article-deck{font-size:17px}.article-layout{grid-template-columns:1fr;padding-top:26px}.article-rail{position:static;display:flex;flex-wrap:wrap;align-items:center;gap:13px}.article-rail p,.rail-rule{display:none}.article-body section{margin-bottom:35px}.article-body section:nth-child(2){padding:23px 22px 3px}.article-body p{font-size:15px}.article-conclusion{padding:25px}.article-related{margin-top:65px}.not-found{padding-block:75px}.back-top{right:16px;bottom:16px}}
@media(max-width:390px){.hero-copy h1{font-size:38px}.hero-art{transform:scale(.62);margin-block:-58px}.hero-actions .button{width:100%}.bottom-list a{grid-template-columns:1fr 16px}.bottom-list a span:first-child{grid-column:1/-1}.format-tile{padding:24px}.quality-controls{flex-direction:column}.quality-choice{min-height:40px}.footer-layout{gap:24px}.page-opening h1{font-size:36px}.article-intro h1{font-size:34px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{.site-header,.site-footer,.back-top,.hero-art,.article-tools button,.nav-toggle{display:none!important}body{background:#fff;color:#111}.shell{max-width:none;padding-inline:0}.article-layout{display:block}.article-rail{display:none}a{text-decoration:underline}.article-body p{color:#222}}