:root{--ink:#ecf3f4;--muted:#9cacb1;--paper:#071014;--panel:#0d1a20;--panel-2:#10242b;--line:#26404a;--lime:#b6e85a;--cyan:#6dd9de;--orange:#ffbe68;--danger:#ff876d;--max:1180px;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color-scheme:dark}*{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse 70% 32% at 80% -8%,#173239 0%,transparent 70%),var(--paper);color:var(--ink);line-height:1.65;font-size:16px}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--lime);outline-offset:3px}p{margin:0 0 1rem}h1,h2,h3{line-height:1.15;margin:0;color:var(--ink);letter-spacing:-.035em}h1{font-size:clamp(2.2rem,5vw,4.9rem)}h2{font-size:clamp(1.55rem,3vw,2.7rem)}h3{font-size:1.18rem}.site-header{max-width:calc(var(--max) + 48px);margin:auto;min-height:82px;padding:16px 24px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:750;letter-spacing:-.04em;white-space:nowrap}.brand small{display:block;color:var(--muted);font-size:.65rem;letter-spacing:.04em;font-weight:600}.brand-mark{display:grid;place-items:center;width:36px;height:36px;background:var(--lime);color:#102016;font-size:.72rem;border-radius:9px;box-shadow:5px 5px 0 #284047}.site-header nav{display:flex;align-items:center;gap:23px;margin-left:auto;color:#cad5d7;font-size:.92rem}.site-header nav a:hover,.text-link:hover{color:var(--lime)}.header-cta{font-size:.87rem;color:var(--lime);white-space:nowrap}.header-cta span{margin-left:5px}main{min-height:65vh}.hero{max-width:var(--max);margin:36px auto 0;padding:62px 0 60px;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}.eyebrow{color:var(--lime);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:800;margin-bottom:13px}.hero h1 em{font-style:normal;color:#c8d7da;font-weight:500}.hero-copy{font-size:1.08rem;color:#b8c7ca;max-width:600px;margin-top:25px}.hero-actions,.tool-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}.button{display:inline-flex;justify-content:center;align-items:center;border:1px solid transparent;border-radius:8px;min-height:45px;padding:10px 17px;font-weight:750;font-size:.92rem;cursor:pointer;transition:transform .16s ease,background .16s ease}.button:hover{transform:translateY(-2px)}.primary{background:var(--lime);color:#122019}.secondary{background:var(--cyan);color:#0b2224}.ghost{border-color:#3b535c;color:#d5e2e4;background:transparent}.signal-panel{padding:25px 25px 20px;background:linear-gradient(145deg,#12242a,#0a1519);border:1px solid #2a424a;border-radius:13px;box-shadow:12px 12px 0 #0c171b}.signal-panel>p{font-size:.75rem;font-weight:800;color:var(--muted);letter-spacing:.13em;text-transform:uppercase}.path{padding:26px 0;display:flex;align-items:center;justify-content:space-between;gap:7px;font-size:.76rem}.path span{display:grid;place-items:center;text-align:center;width:76px;height:76px;border:1px solid #42616a;background:#0b161a;border-radius:50%;padding:7px;line-height:1.25}.path span:nth-of-type(2){border-color:var(--cyan)}.path span:last-child{border-color:var(--lime);color:var(--lime)}.path i{display:block;flex:1;height:1px;background:linear-gradient(90deg,var(--cyan),var(--lime));position:relative}.path i:after{content:"";position:absolute;right:-1px;top:-2px;border:3px solid transparent;border-left-color:var(--lime)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.metrics div{padding:10px;border-top:1px solid #2c474f}.metrics b{font-size:.64rem;color:var(--muted);display:block;text-transform:uppercase;letter-spacing:.08em}.metrics strong{font-size:.77rem;line-height:1.25;display:block;margin-top:5px}.signal-panel small{display:block;color:var(--muted);font-size:.7rem;margin-top:14px}.scenario-grid,.guide-section,.method-grid,.lab-band,.tool-grid,.tool-disclaimer,.collection,.collection-head,.search-head,.article-shell,.policy,.notfound{max-width:var(--max);margin-left:auto;margin-right:auto}.scenario-grid{display:grid;grid-template-columns:1.25fr repeat(2,1fr) 1fr;gap:12px;padding:44px 0 70px}.section-title{display:flex;flex-direction:column;justify-content:center;padding-right:16px}.section-title h2{font-size:2.05rem}.section-title .text-link{margin-top:15px}.scenario-grid>a{background:var(--panel);border:1px solid var(--line);border-radius:10px;min-height:174px;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;transition:border .16s,transform .16s}.scenario-grid>a:hover{border-color:var(--lime);transform:translateY(-3px)}.scenario-grid strong{font-size:1.03rem;margin-top:22px}.scenario-grid small{color:var(--muted);line-height:1.35;margin-top:6px}.icon{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--cyan);color:var(--cyan);border-radius:7px;font-size:.77rem;font-weight:bold}.lab-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:38px 0;display:grid;grid-template-columns:1.2fr 1fr auto;align-items:center;gap:38px}.lab-band h2{font-size:1.7rem}.lab-band p{color:var(--muted);font-size:.93rem;margin:0}.guide-section{padding:82px 0}.guide-section .section-title{flex-direction:row;align-items:end;justify-content:space-between;padding:0;margin-bottom:22px}.guide-section .section-title .eyebrow{position:absolute;margin-top:-34px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.guide-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column;min-height:236px}.guide-card .eyebrow{color:var(--cyan);letter-spacing:.08em}.guide-card h3 a:hover{color:var(--lime)}.guide-card p:not(.eyebrow){color:var(--muted);font-size:.9rem;margin-top:14px}.text-link{color:var(--cyan);font-size:.88rem;font-weight:700;margin-top:auto;padding-top:15px}.method-grid{padding:70px 0 92px;display:grid;grid-template-columns:1fr 1fr;gap:80px}.method-grid p{color:var(--muted);max-width:510px;margin-top:16px}.method-grid ol{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.method-grid li{padding:16px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:56px 1fr;gap:15px}.method-grid b{font-size:.78rem;color:var(--lime)}.method-grid span{color:#cfdbdd}.tool-hero,.collection-head,.search-head{max-width:var(--max);margin:34px auto 0;padding:52px 0 40px;border-bottom:1px solid var(--line)}.tool-hero p:not(.eyebrow),.collection-head p:not(.eyebrow),.search-head>p:not(.eyebrow){color:var(--muted);font-size:1.08rem;max-width:660px;margin-top:16px}.tool-grid{padding:42px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:start}.tool-card{border:1px solid var(--line);border-radius:11px;background:var(--panel);padding:22px;min-height:330px;display:flex;flex-direction:column}.tool-card.featured{grid-column:span 2;background:linear-gradient(130deg,#112c2e,#102026)}.tool-card h2{font-size:1.42rem}.tool-card>p:not(.eyebrow){font-size:.9rem;color:var(--muted);margin-top:13px}.tool-card label{display:grid;gap:6px;color:#ccdbdd;font-size:.83rem;font-weight:700;margin-top:12px}.tool-card input,.tool-card textarea,.tool-card select{background:#091316;color:var(--ink);border:1px solid #38535c;border-radius:6px;min-height:39px;padding:9px;font:inherit;resize:vertical}.tool-card textarea{min-height:92px}.tool-card .button{margin-top:16px;align-self:flex-start}.tool-note{font-size:.75rem!important;color:#a9bcbe!important}.result{display:block;border-left:3px solid var(--cyan);background:#0a1518;margin-top:15px;padding:11px 12px;color:#d4e4e5;font-size:.84rem;min-height:45px}.tool-card fieldset{border:0;padding:0;margin:13px 0 0;display:grid;gap:9px}.tool-card fieldset label{display:flex;align-items:flex-start;margin:0;gap:9px;font-weight:500}.tool-card fieldset input{min-height:auto;margin-top:5px}.tool-disclaimer{background:#132127;border:1px solid #35505a;border-radius:10px;padding:29px 32px;margin-bottom:82px}.tool-disclaimer h2{font-size:1.45rem}.tool-disclaimer p{color:#b9c8ca;margin-top:10px}.tool-disclaimer a{color:var(--lime);font-weight:bold}.collection{padding-top:42px;padding-bottom:84px}.collection-head h1{font-size:3rem}.search-head form{max-width:680px;margin-top:26px}.search-head label{font-size:.82rem;font-weight:bold;display:block;margin-bottom:7px}.search-head form div{display:flex;gap:9px}.search-head input{min-width:0;flex:1;background:#0a1518;border:1px solid #3c5760;color:var(--ink);border-radius:7px;padding:10px 12px;font:inherit}.search-hint{font-size:.84rem!important;color:#8fa6ab!important}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:45px;padding-top:35px;padding-bottom:84px}.breadcrumbs{grid-column:1/-1;display:flex;gap:9px;color:var(--muted);font-size:.82rem}.breadcrumbs a{color:var(--cyan)}.article{max-width:760px}.article h1{font-size:clamp(2.3rem,4.3vw,4rem);margin-bottom:20px}.lead{font-size:1.15rem;color:#c7d5d7;line-height:1.8}.boundary{margin:31px 0;padding:18px 20px;background:#1b2922;border-left:4px solid var(--lime);border-radius:0 8px 8px 0}.boundary strong{color:var(--lime)}.boundary p{color:#cfddcc;margin:6px 0 0;font-size:.92rem}.article h2{font-size:1.65rem;margin:42px 0 15px}.article>p{color:#bdccce}.facts{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:9px;overflow:hidden}.facts div{padding:15px;border-bottom:1px solid var(--line)}.facts div:nth-child(odd){border-right:1px solid var(--line)}.facts div:nth-last-child(-n+2){border-bottom:0}.facts dt{font-size:.73rem;color:var(--cyan);font-weight:bold;letter-spacing:.06em}.facts dd{margin:4px 0 0;color:#c5d3d5;font-size:.88rem}.procedure{padding-left:22px;color:#becdd0}.procedure li{padding-left:8px;margin:13px 0}.procedure strong{color:#e5eeee}.inline-tools{display:flex;flex-wrap:wrap;gap:9px}.inline-tools a{border:1px solid #38525a;border-radius:999px;padding:5px 11px;font-size:.8rem;color:var(--cyan)}.related{border-left:1px solid var(--line);padding-left:23px;align-self:start;position:sticky;top:20px}.related h2{font-size:1.32rem;margin-bottom:12px}.related>a:not(.conversion){display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:start;border-top:1px solid var(--line);padding:12px 0;font-size:.87rem}.related span{font-size:.68rem;color:var(--cyan);padding-top:2px}.related b{color:var(--lime)}.conversion{display:block;background:#172628;border:1px solid #426063;border-radius:7px;padding:12px;margin-top:18px;color:var(--lime);font-size:.84rem}.conversion small{display:block;color:#aabbbc;margin-top:4px}.conversion[data-empty="true"],.hidden-when-empty{display:none}.policy{max-width:820px;margin-top:45px;margin-bottom:90px}.policy h1{font-size:3.15rem;margin-bottom:23px}.policy h2{font-size:1.5rem;margin-top:32px;margin-bottom:10px}.policy>p{color:#c0ced0}.policy table{border-collapse:collapse;width:100%;font-size:.9rem;margin-top:20px}.policy th,.policy td{border:1px solid var(--line);padding:11px;text-align:left;vertical-align:top}.policy th{color:var(--cyan)}.notfound{text-align:center;padding:150px 20px}.notfound p{color:var(--muted);margin:15px auto 26px}footer{max-width:var(--max);border-top:1px solid var(--line);margin:0 auto;padding:32px 0 42px;display:grid;grid-template-columns:1fr auto;gap:20px;color:var(--muted);font-size:.83rem}footer strong{color:var(--ink)}footer div:first-child p{max-width:560px;margin-top:7px}footer div:nth-child(2){display:flex;gap:14px;flex-wrap:wrap;align-content:start;color:#c5d4d6}footer a:hover{color:var(--lime)}.fine{grid-column:1/-1;border-top:1px solid #1d343b;padding-top:15px;font-size:.73rem;margin:0}@media(max-width:1220px){.site-header,.hero,.scenario-grid,.guide-section,.method-grid,.lab-band,.tool-grid,.tool-disclaimer,.collection,.collection-head,.search-head,.article-shell,.policy,footer{margin-left:24px;margin-right:24px}.hero{gap:35px}.tool-grid{grid-template-columns:repeat(2,1fr)}.article-shell{grid-template-columns:minmax(0,1fr) 240px}}@media(max-width:840px){.site-header nav{display:none}.header-cta{margin-left:auto}.hero{grid-template-columns:1fr;padding-top:38px}.signal-panel{max-width:580px}.scenario-grid{grid-template-columns:1fr 1fr}.scenario-grid .section-title{grid-column:1/-1;padding-bottom:7px}.lab-band{grid-template-columns:1fr;gap:15px}.lab-band .button{justify-self:start}.guide-grid{grid-template-columns:1fr 1fr}.method-grid{grid-template-columns:1fr;gap:35px}.tool-grid{grid-template-columns:1fr}.tool-card.featured{grid-column:auto}.article-shell{grid-template-columns:1fr}.related{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:20px;position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:0 14px}.related .eyebrow,.related h2{grid-column:1/-1}.facts{grid-template-columns:1fr}.facts div:nth-child(odd){border-right:0}.facts div:nth-last-child(2){border-bottom:1px solid var(--line)}footer{grid-template-columns:1fr}}@media(max-width:540px){body{font-size:15px}.site-header{min-height:70px;padding:12px 0;margin-left:17px;margin-right:17px}.brand small{display:none}.header-cta{font-size:.78rem}.hero,.scenario-grid,.guide-section,.method-grid,.lab-band,.tool-grid,.tool-disclaimer,.collection,.collection-head,.search-head,.article-shell,.policy,footer{margin-left:17px;margin-right:17px}.hero{padding:27px 0 38px}.hero h1{font-size:2.5rem}.hero-copy{font-size:1rem}.path{gap:3px}.path span{width:56px;height:56px;font-size:.65rem}.path i{min-width:7px}.metrics{grid-template-columns:1fr}.metrics div{padding:8px}.scenario-grid{grid-template-columns:1fr 1fr;padding:28px 0 45px}.scenario-grid>a{min-height:137px;padding:14px}.scenario-grid a:nth-of-type(4){grid-column:1/-1}.guide-section{padding:58px 0}.guide-section .section-title{display:block}.guide-section .section-title .eyebrow{position:static;margin:0 0 12px}.guide-section .text-link{display:block;margin-top:14px}.guide-grid{grid-template-columns:1fr}.guide-card{min-height:205px}.method-grid{padding:45px 0 55px}.tool-hero,.collection-head,.search-head{padding:35px 0 28px}.tool-hero h1,.collection-head h1,.search-head h1,.policy h1{font-size:2.5rem}.tool-grid{padding-top:25px}.tool-card{min-height:0}.search-head form div{display:block}.search-head button{width:100%;margin-top:9px}.article-shell{padding-top:22px;padding-bottom:54px}.article h1{font-size:2.5rem}.lead{font-size:1.05rem}.related{grid-template-columns:1fr}.policy{margin-top:32px;margin-bottom:55px}.policy table{font-size:.78rem;display:block;overflow:auto}.tool-disclaimer{padding:23px 20px;margin-bottom:55px}footer{padding:28px 0 34px}.breadcrumbs{overflow:auto;white-space:nowrap}.button{width:auto}}
/* Review repair: compact desktop hero and preserve the full title without oversized blank space. */
.hero{margin-top:22px;padding-top:38px;padding-bottom:54px}.hero h1{font-size:clamp(2.35rem,4vw,4.15rem);max-width:760px}.hero-kicker{font-size:1.25rem;color:#c8d7da;font-weight:500;margin:15px 0 0}
.notfound h1 .notfound-title-tail{white-space:nowrap}