@font-face{font-family:Fraunces;font-style:normal;font-weight:100 900;font-display:swap;src:url(/fonts/fraunces-display.woff2)format("woff2-variations")}@font-face{font-family:Fraunces;font-style:italic;font-weight:100 900;font-display:swap;src:url(/fonts/fraunces-display-italic.woff2)format("woff2-variations")}@font-face{font-family:Fraunces Fallback;src:local(Georgia),local(Times New Roman),local(Times);ascent-override:97.8%;descent-override:25.5%;line-gap-override:0%;size-adjust:107%}.ed-page,.ed-page *,.ed-page :before,.ed-page :after{box-sizing:border-box}.ed-page{--page:#f7f3ea;--surface:#fffdf8;--surface-strong:#143b36;--ink:#17302d;--ink-soft:#44554f;--muted:#55635e;--accent:#1d655d;--accent-soft:#dceae5;--gold:#dfbd75;--gold-ink:#6b4f18;--line:#d6d0c4;--o-open:#2f6b46;--o-open-soft:#e4efe6;--o-watch:#8a6420;--o-watch-soft:#f4ecdf;--font-display:"Fraunces", "Fraunces Fallback", "Iowan Old Style", Georgia, serif;--font-ui:"Inter", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;--sp-1:clamp(88px, 10vw, 144px);--sp-2:clamp(64px, 7vw, 96px);--sp-3:clamp(44px, 5vw, 64px);--display-1:"opsz" 72, "wght" 400;--display-2:"opsz" 36, "wght" 460;--display-3:"opsz" 20, "wght" 500;--shadow-card:0 1px 2px #17302d0d, 0 10px 26px #17302d0f;--shadow-card-lift:0 2px 4px #17302d12, 0 18px 40px #17302d1a;--portal-surface:var(--surface);--portal-line:var(--line);--portal-ink:var(--ink);--portal-accent:var(--accent);min-height:100vh;color:var(--ink);background:radial-gradient(circle at 88% 6%, #dceae599 0, transparent 30rem), var(--page);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.65}.ed-page :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}.ed-next :focus-visible,.ed-page .ed-cta:focus-visible{outline-color:var(--gold)}.ed-serif{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.018em;font-weight:420}.ed-eyebrow:after{content:"";background:var(--gold);width:24px;height:2px;margin-top:8px;display:block}.ed-next .ed-eyebrow:after{background:#ffffff42}.ed-wash{margin:var(--sp-2) calc(-1 * clamp(20px, 5vw, 56px)) 0;padding:var(--sp-2) clamp(20px, 5vw, 56px);background:linear-gradient(#0000,#dceae585 18% 82%,#0000)}.ed-wash>:first-child{margin-top:0}.ed-header{z-index:5;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#f4efe6eb;border-bottom:1px solid #d6d0c4d6;position:sticky;top:0}.ed-header-inner{justify-content:space-between;align-items:center;gap:24px;max-width:1200px;min-height:72px;margin:0 auto;padding:10px clamp(20px,5vw,56px);display:flex}.ed-wordmark{color:inherit;align-items:center;gap:12px;text-decoration:none;display:flex}.ed-mark{flex:0 0 42px;width:42px;height:24px}.ed-mark .ed-route{fill:none;stroke:#1d655d4d;stroke-width:1.5px;stroke-linecap:round}.ed-mark .ed-arrow{fill:var(--accent)}.ed-mark .ed-origin{fill:#1d655d4d}.ed-mark .ed-junction,.ed-mark .ed-destination{fill:var(--accent)}.ed-wordmark strong{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.012em;font-size:1.06rem;font-weight:460;line-height:1.2;display:block}.ed-wordmark small{max-width:34ch;color:var(--muted);font-size:.88rem;line-height:1.4;display:block}.ed-nav{scrollbar-width:none;align-items:center;gap:4px;display:flex;overflow-x:auto}.ed-nav::-webkit-scrollbar{display:none}.ed-nav a{color:var(--ink-soft);white-space:nowrap;border-radius:999px;padding:7px 12px;font-size:.88rem;font-weight:600;text-decoration:none;transition:background .16s,color .16s}.ed-nav a:hover{color:var(--accent);background:#1d655d14}.ed-nav a[aria-current=true]{background:var(--accent-soft);color:var(--accent)}.ed-nav .ed-nav-lang{border-left:1px solid var(--line);border-radius:0;margin-left:6px;padding-left:14px}.ed-main{max-width:1200px;margin:0 auto;padding:0 clamp(20px,5vw,56px) 96px}.ed-section{margin-top:var(--sp-2)}.ed-section-tight{margin-top:var(--sp-3)}.ed-hero{padding:clamp(48px,7vw,96px) 0 0;position:relative;overflow:hidden}.ed-hero-grid{grid-template-columns:minmax(0,1fr);gap:clamp(24px,4vw,56px);display:grid}@media (width>=900px){.ed-hero-grid.has-aside{grid-template-columns:minmax(0,1.55fr) minmax(240px,.85fr);align-items:end}}.ed-eyebrow{color:var(--accent);font-family:var(--font-ui);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px;font-size:11px;font-weight:600;line-height:1.5;display:block}.ed-hero h1{max-width:20ch;font-family:var(--font-display);font-variation-settings:var(--display-1);letter-spacing:-.032em;text-wrap:balance;margin:0;font-size:clamp(2.3rem,4.8vw,4.1rem);font-weight:400;line-height:1.05}.ed-standfirst{max-width:62ch;color:var(--ink-soft);margin:20px 0 0;font-size:1.06rem;line-height:1.7}.ed-hero-aside{border:1px solid var(--line);background:var(--surface);border-radius:12px;gap:18px;padding:20px 22px;display:grid}.ed-hero-aside div{flex-direction:column-reverse;gap:5px;display:flex}.ed-hero-aside div span{color:var(--muted);font-family:var(--font-ui);letter-spacing:.12em;text-transform:uppercase;font-size:11px;font-weight:600;line-height:1.5;display:block}.ed-hero-aside div strong{font-family:var(--font-display);font-variation-settings:var(--display-3);letter-spacing:-.018em;font-size:1.45rem;font-weight:500;line-height:1.2}.ed-prose{max-width:72ch}.ed-prose h2{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.022em;margin:56px 0 14px;font-size:clamp(1.45rem,2.3vw,1.95rem);font-weight:460;line-height:1.18}.ed-prose h3{margin:34px 0 10px;font-size:1.06rem;font-weight:700}.ed-prose p{margin:0 0 18px}.ed-prose ul,.ed-prose ol{margin:0 0 20px;padding-left:22px}.ed-prose li{margin-bottom:9px}.ed-prose a{color:var(--accent);border-bottom:1px solid #1d655d52;text-decoration:none;transition:border-color .16s}.ed-prose a:hover{border-bottom-color:var(--accent)}.ed-arrow-link{color:var(--accent);align-items:center;gap:7px;font-weight:600;text-decoration:none;display:inline-flex}.ed-arrow-link span{transition:transform .16s}.ed-arrow-link:hover span{transform:translate(3px)}.ed-answer{max-width:72ch;margin:var(--sp-3) 0 0;box-shadow:var(--shadow-card);background:linear-gradient(#dceae5d9,#dceae573);border:1px solid #1d655d29;border-radius:14px;padding:26px 28px;position:relative}.ed-answer span{color:var(--accent);letter-spacing:.14em;text-transform:uppercase;align-items:center;gap:9px;margin-bottom:12px;font-size:.8rem;font-weight:800;display:flex}.ed-answer span:before{content:"";background:radial-gradient(circle 5px at 5px 5px, transparent 0 2.2px, var(--accent) 2.2px 3.6px, transparent 3.6px), linear-gradient(var(--accent) 0 0) 12px 4.2px / 18px 1.6px no-repeat;flex:none;width:30px;height:10px}.ed-answer p{margin:0 0 12px;font-size:1.08rem;line-height:1.62}.ed-answer p:last-child{margin-bottom:0}.ed-steps{counter-reset:ed-step;max-width:72ch;margin:0;padding:0;list-style:none}.ed-steps li{counter-increment:ed-step;min-height:34px;padding:0 0 22px 52px;position:relative}.ed-steps li:before{content:counter(ed-step, decimal-leading-zero);width:34px;height:34px;color:var(--gold-ink);font-family:var(--font-display);font-variation-settings:var(--display-2);background:#dfbd7524;border:1px solid #dfbd75b3;border-radius:50%;justify-content:center;align-items:center;font-size:.96rem;font-weight:460;line-height:1;display:flex;position:absolute;top:-1px;left:0}.ed-steps li:last-child{padding-bottom:0}.ed-done{background:var(--o-open-soft);border:1px solid #2f6b4642;border-radius:10px;gap:14px;max-width:72ch;padding:20px 22px;display:flex}.ed-done-tick{background:var(--o-open);color:#fff;border-radius:50%;flex:0 0 26px;justify-content:center;align-items:center;width:26px;height:26px;font-size:.88rem;font-weight:800;display:flex}.ed-done div span{color:var(--o-open);letter-spacing:.13em;text-transform:uppercase;margin-bottom:5px;font-size:.8rem;font-weight:800;display:block}.ed-done p{margin:0}.ed-sources{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.ed-source-chip{border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);border-radius:999px;align-items:baseline;gap:8px;padding:7px 13px;font-size:.88rem;text-decoration:none;transition:border-color .16s,background .16s;display:inline-flex}.ed-source-chip:hover{border-color:var(--accent);background:var(--accent-soft)}.ed-source-chip strong{color:var(--accent);font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.88rem;font-weight:700}.ed-source-chip em{color:var(--muted);font-style:normal}.ed-grid{gap:14px;display:grid}@media (width>=720px){.ed-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=900px){.ed-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}.ed-card{box-shadow:var(--shadow-card);border:1px solid var(--line);background:var(--surface);color:inherit;border-radius:12px;padding:20px 22px;text-decoration:none;transition:transform .16s,border-color .16s,box-shadow .16s;display:block}a.ed-card:hover{box-shadow:var(--shadow-card-lift);border-color:#1d655d73;transform:translateY(-2px);box-shadow:0 10px 28px #17302d12}.ed-card h3{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.014em;margin:0 0 8px;font-size:1.14rem;font-weight:460;line-height:1.28}.ed-card p{color:var(--muted);margin:0;font-size:.94rem;line-height:1.62}.ed-card-meta{color:var(--muted);letter-spacing:.09em;text-transform:uppercase;flex-wrap:wrap;gap:8px;margin-bottom:11px;font-size:.8rem;font-weight:700;display:flex}.ed-card-arrow{color:var(--accent);margin-top:13px;font-size:.94rem;font-weight:600}.ed-clusternav{z-index:4;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);scrollbar-width:none;background:#f4efe6eb;gap:8px;padding:14px 0;display:flex;position:sticky;top:72px;overflow-x:auto}.ed-clusternav::-webkit-scrollbar{display:none}.ed-clusternav a{border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);white-space:nowrap;border-radius:999px;align-items:baseline;gap:7px;padding:8px 15px;font-size:.88rem;font-weight:600;text-decoration:none;transition:border-color .16s,color .16s;display:inline-flex}.ed-clusternav a:hover{border-color:var(--accent);color:var(--accent)}.ed-clusternav a b{color:var(--muted);font-size:.88rem;font-weight:700}.ed-article-grid{gap:clamp(28px,4vw,56px);display:grid}@media (width>=1040px){.ed-article-grid{grid-template-columns:minmax(0,1fr) 240px;align-items:start}.ed-toc{position:sticky;top:104px}.ed-toc-mobile{display:none}}@media (width<=1039px){.ed-toc{display:none}}.ed-toc nav{gap:3px;display:grid}.ed-toc>span{color:var(--muted);letter-spacing:.13em;text-transform:uppercase;margin-bottom:12px;font-size:.8rem;font-weight:800;display:block}.ed-toc a{border-left:2px solid var(--line);color:var(--ink-soft);padding:6px 0 6px 13px;font-size:.94rem;text-decoration:none;transition:border-color .16s,color .16s}.ed-toc a:hover{border-left-color:var(--accent);color:var(--accent)}.ed-toc-mobile{border:1px solid var(--line);background:var(--surface);border-radius:10px;margin:32px 0 0}.ed-toc-mobile>summary{cursor:pointer;padding:14px 18px;font-size:.96rem;font-weight:700;list-style:none}.ed-toc-mobile>summary::-webkit-details-marker{display:none}.ed-toc-mobile>summary:after{content:" ↓";color:var(--accent)}.ed-toc-mobile[open]>summary:after{content:" ↑"}.ed-toc-mobile nav{gap:2px;padding:0 18px 16px;display:grid}.ed-toc-mobile a{color:var(--ink-soft);font-size:.94rem;text-decoration:none}.ed-fact{border:1px solid var(--line);background:var(--surface);border-radius:12px;max-width:72ch;margin:28px 0;overflow:hidden}.ed-fact>span{border-bottom:1px solid var(--line);color:var(--accent);letter-spacing:.12em;text-transform:uppercase;background:#dceae566;padding:14px 20px;font-size:.88rem;font-weight:800;display:block}.ed-fact table{border-collapse:collapse;width:100%}.ed-fact th,.ed-fact td{text-align:left;vertical-align:top;border-bottom:1px solid #d6d0c499;padding:12px 20px;font-size:.96rem}.ed-fact th{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.88rem;font-weight:800}.ed-fact tr:last-child td{border-bottom:0}.ed-fact td:first-child{white-space:nowrap;font-weight:700}.ed-next{margin-top:var(--sp-1);background:var(--surface-strong);color:#eef4f1;border-radius:16px;padding:clamp(32px,4.5vw,52px) clamp(24px,4vw,52px);position:relative;overflow:hidden}.ed-next-grid{gap:26px;display:grid}@media (width>=860px){.ed-next-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:center}}.ed-next h2{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.026em;text-wrap:balance;margin:10px 0 0;font-size:clamp(1.65rem,2.9vw,2.35rem);font-weight:460;line-height:1.12}.ed-next .ed-eyebrow{color:#eef4f1b8}.ed-next p{color:#eef4f1c7;max-width:52ch;margin:14px 0 0;font-size:.96rem}.ed-next-actions{flex-wrap:wrap;gap:12px;display:flex}.ed-cta{background:var(--gold);color:var(--gold-ink);border:1px solid #0000;border-radius:999px;align-items:center;gap:8px;padding:13px 24px;font-size:.96rem;font-weight:700;text-decoration:none;transition:transform .16s,filter .16s;display:inline-flex}.ed-cta:hover{filter:brightness(1.04);transform:translateY(-1px)}.ed-cta-ghost{color:#eef4f1;background:0 0;border-color:#eef4f157}.ed-cta-ghost:hover{filter:none;border-color:#eef4f1b3}.ed-footer{border-top:1px solid var(--line);background:#fffdf899}.ed-footer-inner{gap:28px;max-width:1200px;margin:0 auto;padding:44px clamp(20px,5vw,56px) 52px;display:grid}@media (width>=860px){.ed-footer-inner{grid-template-columns:minmax(0,1.2fr) repeat(2,minmax(0,1fr))}}.ed-footer strong{font-family:var(--font-display);font-variation-settings:var(--display-2);margin-bottom:8px;font-size:1.06rem;font-weight:460;line-height:1.2;display:block}.ed-footer p{color:var(--muted);margin:0;font-size:.94rem}.ed-footer span.ed-trust{color:var(--accent);letter-spacing:.06em;margin-top:12px;font-size:.88rem;font-weight:700;display:block}.ed-footer h2{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px;font-size:.8rem;font-weight:800}.ed-footer nav{gap:7px;display:grid}.ed-footer nav a{color:var(--ink-soft);font-size:.94rem;text-decoration:none}.ed-footer nav a:hover{color:var(--accent)}.ed-footer-legal{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;grid-column:1/-1;gap:8px 20px;padding-top:20px;font-size:.88rem;display:flex}@media (prefers-reduced-motion:reduce){.ed-page *{transition:none!important}a.ed-card:hover,.ed-cta:hover{transform:none}}.ed-art{pointer-events:none;position:absolute}.ed-art .ed-route{fill:none;stroke:#1d655d4d;stroke-width:1.5px;stroke-linecap:round}.ed-art .ed-node,.ed-art .ed-dest{fill:#1d655d4d}.ed-art[data-variant=hero]{opacity:.3;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000 0 50%,#000 60%);mask-image:linear-gradient(90deg,#0000 0 50%,#000 60%)}@media (width<=900px){.ed-art[data-variant=hero]{display:none}}.ed-art[data-variant=goldline]{opacity:.34;top:-48px;right:-130px;-webkit-mask-image:linear-gradient(90deg,#0000 0 18%,#000 40%);mask-image:linear-gradient(90deg,#0000 0 18%,#000 40%)}.ed-art[data-variant=goldline] .ed-route{stroke:#dfbd753d}.ed-art[data-variant=goldline] .ed-node{fill:#dfbd753d}.ed-art[data-variant=corner]{opacity:.4;bottom:0;right:0}.ed-art-inline{display:block}.ed-art-inline .ed-route{fill:none;stroke:var(--accent);stroke-width:1.5px;stroke-linecap:round}.ed-art-inline .ed-node{fill:var(--accent)}.ed-divider{margin:var(--sp-3) auto 0;opacity:.5;display:block}@media (prefers-reduced-motion:reduce){a.ed-card:hover{transform:none}}.ed-display-1{max-width:16ch;font-family:var(--font-display);font-variation-settings:var(--display-1);letter-spacing:-.034em;text-wrap:balance;margin:0;font-size:clamp(2.6rem,6vw,4.6rem);font-weight:400;line-height:1.03}.ed-home-hero{align-items:center;min-height:min(70vh,620px);padding:clamp(48px,8vw,104px) 0 clamp(32px,5vw,64px);display:flex;position:relative}.ed-home-hero-inner{max-width:640px;position:relative}.ed-facts{color:var(--ink-soft);flex-wrap:wrap;gap:20px 40px;margin:clamp(28px,4vw,40px) 0 0;padding:0;font-size:.96rem;list-style:none;display:flex}.ed-facts li{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);flex-direction:column;gap:5px;font-size:11px;font-weight:600;display:flex}.ed-facts b{font-family:var(--font-display);font-variation-settings:var(--display-3);letter-spacing:-.012em;text-transform:none;color:var(--ink);font-size:1.5rem;font-weight:500;line-height:1.1}.ed-entry-grid{gap:clamp(16px,2vw,24px);display:grid}@media (width>=900px){.ed-entry-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.ed-entry{flex-direction:column;padding:clamp(22px,2.4vw,30px);display:flex}.ed-entry-node{color:var(--accent);align-items:center;gap:10px;margin-bottom:16px;display:flex}.ed-entry-node span{font-family:var(--font-display);font-variation-settings:var(--display-3);letter-spacing:-.01em;font-size:1.25rem;font-weight:500}.ed-entry h2{font-family:var(--font-display);font-variation-settings:var(--display-2);letter-spacing:-.018em;margin:0 0 10px;font-size:1.32rem;font-weight:460;line-height:1.22}.ed-entry p{color:var(--ink-soft);margin:0;font-size:.96rem;line-height:1.6}.ed-entry-chips{flex-wrap:wrap;gap:8px;margin:18px 0 0;display:flex}.ed-entry-chips span{border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:4px 11px;font-size:.88rem}.ed-entry .ed-cta{align-self:flex-start;margin-top:auto}.ed-entry .ed-cta-outline{margin-top:24px}.ed-cta-outline{color:var(--accent);background:0 0;border-color:#1d655d57}.ed-cta-outline:hover{background:var(--accent);border-color:var(--accent);color:#fff;filter:none}.ed-home-panel{margin-top:var(--sp-1)}.ed-home-panel h2{max-width:16ch}.ed-home-stats{gap:20px;margin:0;display:grid}.ed-home-stats dt{font-family:var(--font-display);font-variation-settings:var(--display-3);letter-spacing:-.012em;color:#fff;font-size:1.5rem;font-weight:500;line-height:1.1}.ed-home-stats dd{color:#eef4f1bd;margin:5px 0 0;font-size:13px;line-height:1.6}.ed-home-method-title{max-width:22ch;margin:0 0 clamp(20px,3vw,32px);font-size:clamp(1.4rem,2.4vw,1.95rem);line-height:1.18}.ed-home-method .ed-card{padding:clamp(20px,2.2vw,28px)}.ed-home-trust{margin:clamp(28px,4vw,44px) 0 0;font-size:.96rem}.ed-home-trust a{color:var(--accent);font-weight:600;text-decoration:none}.ed-home-trust a:hover{text-underline-offset:3px;text-decoration:underline}.ed-page .lang-hint-banner{background:var(--accent);color:#fdfaf2}.ed-page .p1band{width:100%;max-width:1200px;margin:20px auto 0;padding:0 clamp(20px,5vw,56px)}@media (width<=720px){.ed-wordmark small{display:none}.ed-wordmark strong{white-space:nowrap}.ed-home-hero{min-height:0;padding-bottom:8px}.ed-header-inner{flex-wrap:wrap;row-gap:0;min-height:0;padding-bottom:0}.ed-nav{flex-basis:calc(100% + 2*clamp(20px,5vw,56px));gap:2px;margin:0 calc(-1*clamp(20px,5vw,56px));padding:5px clamp(20px,5vw,56px) 11px}.ed-nav a{padding:9px 11px}.ed-nav .ed-nav-lang{margin-left:4px;padding-left:11px}html[lang=en] .ed-hero h1{max-width:none;font-size:clamp(1.8rem,7.6vw,2.3rem);line-height:1.1}.ed-facts{grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:18px 14px;display:grid}.ed-facts li{gap:4px}.ed-facts b{font-size:1.32rem}.ed-entry-chips{gap:6px;margin-top:14px}html[lang=en] .ed-entry-chips span{padding:3px 9px;font-size:.88rem}.ed-entry .ed-cta,.ed-entry .ed-cta-outline{justify-content:center;align-self:stretch;width:100%;margin-top:20px}.ed-next-actions{gap:10px;display:grid}.ed-next-actions .ed-cta{justify-content:center;width:100%}}html[lang=zh-CN] .ed-page{--font-display:"Fraunces", "SGSong", "SGSong Fallback", "Songti SC", serif}html[lang=zh-CN] .ed-page .ed-serif,html[lang=zh-CN] .ed-hero h1,html[lang=zh-CN] .ed-prose h2,html[lang=zh-CN] .ed-card h3,html[lang=zh-CN] .ed-entry h2,html[lang=zh-CN] .ed-next h2,html[lang=zh-CN] .ed-hero-aside div strong,html[lang=zh-CN] .ed-footer strong,html[lang=zh-CN] .ed-wordmark strong{font-variation-settings:normal;letter-spacing:.012em;font-weight:600}html[lang=zh-CN] .ed-hero h1{max-width:18em;font-size:clamp(1.75rem,4.2vw,3.1rem);line-height:1.24}html[lang=zh-CN] .ed-prose h2{line-height:1.3}html[lang=zh-CN] .ed-next h2{line-height:1.28}html[lang=zh-CN] .ed-standfirst{max-width:34em;line-height:1.85}html[lang=zh-CN] .ed-prose{max-width:38em}html[lang=zh-CN] .ed-prose p{line-height:1.9}@media (width<=720px){html[lang=zh-CN] .ed-hero h1,html[lang=zh-CN] .ed-standfirst{max-width:none}}.ed-stat{flex-direction:column;gap:5px;display:flex}.ed-stat b{font-family:var(--font-display);font-variation-settings:var(--display-3);letter-spacing:-.012em;font-size:1.5rem;font-weight:500;line-height:1.1}.ed-stat span{font-family:var(--font-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:11px;font-weight:600;line-height:1.5}.ed-stat span.ed-stat-sentence{letter-spacing:0;text-transform:none;font-size:13px;font-weight:400;line-height:1.6}.ed-page{--radius-card:20px;--radius-control:12px}.ed-card,.ed-answer,.ed-fact,.ed-next,.ed-hero-aside,.ed-toc-mobile{border-radius:var(--radius-card)}.ed-source-chip,.ed-clusternav a{border-radius:var(--radius-control)}.ed-cta,.ed-entry-chips span,.ed-nav a{border-radius:999px}.ed-cta{min-height:48px;font-family:var(--font-ui);padding:0 26px;font-size:.96rem;font-weight:600}.ed-nav a{position:relative}.ed-nav a:after{content:"";height:44px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.ed-wordmark{min-height:44px}.ed-footer nav{gap:0}.ed-footer nav a{align-items:center;min-height:44px;display:flex}.ed-footer-legal a{align-items:center;min-height:44px;display:inline-flex}.ed-nav{-webkit-mask-image:linear-gradient(90deg,#000 0 88%,#0000 100%);mask-image:linear-gradient(90deg,#000 0 88%,#0000 100%)}@media (width>=1100px){.ed-nav{-webkit-mask-image:none;mask-image:none}}.ed-entry{border-color:#1d655d29;position:relative;overflow:hidden}.ed-entry-surface-1{background:color-mix(in srgb, var(--accent-soft) 58%, var(--surface));border-color:#1d655d38}.ed-entry-surface-2{background:#e8efea;border-color:#c7d7cf}.ed-entry-surface-3{background:#eee8dc;border-color:#d9cfbd}.ed-entry-ghost{color:#17302d12;font-family:var(--font-display);font-variation-settings:var(--display-1);pointer-events:none;-webkit-user-select:none;user-select:none;font-size:clamp(3.4rem,6vw,5rem);font-weight:400;line-height:1;position:absolute;top:8px;right:18px}.ed-entry>:not(.ed-entry-ghost){position:relative}.ed-cta-solid{background:var(--accent);border-color:var(--accent);color:#fff}.ed-cta-solid:hover{filter:none;background:#17564f;border-color:#17564f}@media (width<=720px){.ed-entry-ghost{font-size:3rem;top:4px;right:14px}}html[lang=en] .ed-page{--sp-1:clamp(64px, 6.5vw, 104px);--sp-2:clamp(48px, 4.6vw, 72px);--sp-3:clamp(32px, 3.2vw, 46px)}html[lang=en] .ed-home-hero{min-height:0;padding:clamp(28px,4vw,56px) 0 clamp(22px,3vw,40px)}html[lang=en] .ed-facts{margin-top:clamp(22px,3vw,32px)}@media (width>=900px){html[lang=en] .ed-home-hero{min-height:440px}}html[lang=en] .ed-art .ed-route{stroke:#1d655d59;stroke-width:1.75px}html[lang=en] .ed-art .ed-node,html[lang=en] .ed-art .ed-dest{fill:#1d655d59}html[lang=en] .ed-art[data-variant=hero]{opacity:1}html[lang=en] .ed-art[data-variant=corner]{opacity:.85}html[lang=en] .ed-art[data-variant=goldline]{opacity:1}html[lang=en] .ed-art[data-variant=goldline] .ed-route{stroke:#dfbd7557}html[lang=en] .ed-art[data-variant=goldline] .ed-node{fill:#dfbd7557}html[lang=en] .ed-entry-ghost{color:#17302d24}@media (width>=1180px){html[lang=en] .ed-art[data-variant=hero]{width:min(100% - 660px,1040px);inset:50% 0 auto auto;transform:translateY(-50%);-webkit-mask-image:linear-gradient(90deg,#0000 0 4%,#000 16%);mask-image:linear-gradient(90deg,#0000 0 4%,#000 16%)}}@media (width>=1500px){html[lang=en] .ed-header-inner,html[lang=en] .ed-main,html[lang=en] .ed-footer-inner,html[lang=en] .ed-page .p1band{max-width:1360px}}@media (width>=1800px){html[lang=en] .ed-header-inner,html[lang=en] .ed-main,html[lang=en] .ed-footer-inner,html[lang=en] .ed-page .p1band{max-width:1480px}}@media (width>=2100px){html[lang=en] .ed-header-inner,html[lang=en] .ed-main,html[lang=en] .ed-footer-inner,html[lang=en] .ed-page .p1band{max-width:1600px}}@media (width>=1500px){html[lang=en] .ed-article-grid{grid-template-columns:minmax(0,1fr) 260px}}@media (width<=720px){html[lang=en] .ed-entry-chips{gap:0 15px;margin-top:12px}html[lang=en] .ed-entry-chips span{border:0;border-radius:0;padding:0;font-size:.88rem;position:relative}html[lang=en] .ed-entry-chips span+span:before{content:"·";color:var(--line);position:absolute;left:-10px}}html[lang=en] .ed-page{--font-display:"Source Serif 4", "Source Serif 4 Fallback", Georgia, serif;--muted:#55635e;--ink-soft:#44554f;--display-1:normal;--display-2:normal;--display-3:normal}html[lang=en] .ed-page .ed-serif,html[lang=en] .ed-hero h1,html[lang=en] .ed-prose h2,html[lang=en] .ed-card h3,html[lang=en] .ed-entry h2,html[lang=en] .ed-next h2,html[lang=en] .ed-hero-aside div strong,html[lang=en] .ed-footer strong,html[lang=en] .ed-wordmark strong,html[lang=en] .ed-stat b,html[lang=en] .ed-home-stats dt,html[lang=en] .ed-facts b{font-variation-settings:normal;font-weight:600}html[lang=en] .ed-hero h1{letter-spacing:-.02em;font-size:clamp(2.3rem,4.5vw,3.8rem);line-height:1.08}html[lang=en] .ed-standfirst{max-width:58ch;font-size:1.1rem;line-height:1.72}html[lang=en] .ed-hero .ed-art[data-variant=corner]{opacity:1;width:min(32vw,460px);height:auto;top:52%;bottom:auto;right:clamp(8px,3vw,48px);transform:translateY(-50%)}html[lang=en] .ed-hero .ed-art[data-variant=corner] .ed-route{stroke:#1d655d66;stroke-width:1.6px}html[lang=en] .ed-hero .ed-art[data-variant=corner] .ed-node{fill:#1d655d66}@media (width<=1080px){html[lang=en] .ed-hero .ed-art[data-variant=corner]{display:none}}html[lang=en] .ed-prose h2{letter-spacing:-.014em}html[lang=en] .ed-next h2{letter-spacing:-.01em;line-height:1.2}html[lang=en] .ed-wordmark strong{letter-spacing:-.01em;font-size:1.04rem}html[lang=en] .ed-steps li:before{font-variation-settings:normal;font-weight:600}html[lang=en] .ed-eyebrow:after{display:none}.ed-mobile-menu{display:none;position:relative}.ed-mobile-menu summary{min-width:72px;min-height:44px;color:var(--accent);text-align:center;cursor:pointer;border:1px solid #1d655d47;border-radius:999px;padding:0 14px;font-size:.94rem;font-weight:700;line-height:42px;list-style:none}.ed-mobile-menu summary::-webkit-details-marker{display:none}.ed-mobile-menu summary:after{content:" +";font-weight:500}.ed-mobile-menu[open] summary:after{content:" −"}.ed-mobile-menu nav{z-index:6;border:1px solid var(--line);background:var(--surface);border-radius:16px;width:min(300px,100vw - 40px);padding:10px;display:grid;position:absolute;top:calc(100% + 9px);right:0;box-shadow:0 18px 50px #17302d29}.ed-mobile-menu nav a{min-height:44px;color:var(--ink);border-radius:10px;align-items:center;padding:0 12px;font-size:.96rem;font-weight:600;text-decoration:none;display:flex}.ed-mobile-menu nav a:hover,.ed-mobile-menu nav a[aria-current=true]{background:var(--accent-soft);color:var(--accent)}.ed-mobile-menu nav .ed-mobile-lang{border-top:1px solid var(--line);color:var(--accent);border-radius:0;margin-top:6px}@media (width<=860px){html[lang=en] .ed-nav{display:none}html[lang=en] .ed-mobile-menu{display:block}html[lang=en] .ed-header-inner{flex-wrap:nowrap;min-height:64px;padding-bottom:10px}html[lang=en] .ed-wordmark small{display:none}}html[lang=en] .ed-wordmark small{display:none}.ed-home-hero{grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr);align-items:start;gap:0 clamp(40px,4.5vw,64px);padding:clamp(30px,4.2vw,52px) 0 38px;display:grid}.ed-home-kicker{color:var(--accent);letter-spacing:.05em;grid-column:1/-1;margin:0 0 20px;font-size:.96rem;font-weight:700}.ed-home-title{max-width:15ch;font-family:var(--font-display);font-variation-settings:normal;letter-spacing:-.02em;text-wrap:balance;color:color-mix(in srgb, var(--ink) 94%, var(--page));margin:0;font-size:clamp(2.5rem,4.7vw,4.15rem);font-weight:600;line-height:1.06}.ed-home-stand{max-width:48ch;color:var(--ink);text-wrap:pretty;margin:20px 0 0;font-size:clamp(1.05rem,1.5vw,1.24rem);line-height:1.66}.ed-home-aside{max-width:34ch;color:var(--ink-soft);text-wrap:pretty;border-top:2px solid #1d655d3d;grid-area:2/2;margin-top:14px;padding-top:16px;font-size:.98rem;line-height:1.8}.ed-paths{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.ed-path{border:1px solid var(--line);background:var(--surface);border-radius:16px;grid-template-rows:1fr auto auto;min-height:372px;padding:30px;display:grid;position:relative;overflow:hidden}.ed-path-primary{box-shadow:0 18px 42px #25393214}.ed-path-s1{background:#e8efea;border-color:#c7d7cf}.ed-path-preu{background:#eee8dc;border-color:#d9cfbd}.ed-path-wm{color:#17302d17;font-family:var(--font-display);font-variation-settings:normal;pointer-events:none;-webkit-user-select:none;user-select:none;font-size:3.4rem;font-weight:600;line-height:1.06;position:absolute;top:12px;right:20px}.ed-path-copy{align-self:start;position:relative}.ed-path-eyebrow{color:var(--accent);letter-spacing:.035em;text-transform:uppercase;margin:0 0 18px;padding-right:92px;font-size:.8rem;font-weight:720;line-height:1.7}.ed-path h2{max-width:14ch;font-family:var(--font-display);font-variation-settings:normal;letter-spacing:-.012em;text-wrap:balance;margin:0;font-size:clamp(1.5rem,2.1vw,1.95rem);font-weight:600;line-height:1.18}.ed-path-sum{max-width:44ch;color:var(--muted);text-wrap:pretty;margin-top:14px;font-size:.96rem;line-height:1.72;display:block}.ed-path-outcomes{color:var(--muted);flex-wrap:wrap;align-self:end;gap:6px 12px;margin:24px 0 18px;font-size:.88rem;font-weight:680;display:flex}.ed-path-outcomes span+span:before{content:"/";color:var(--line);margin-right:12px}.ed-path-action{border:1px solid var(--accent);background:var(--accent);color:#fbf8f1;border-radius:10px;justify-content:space-between;align-items:center;min-height:50px;padding:0 17px;font-size:.94rem;font-weight:740;text-decoration:none;transition:transform .18s,background .18s;display:flex}.ed-path-action:hover{background:#124b45}.ed-path-action:active{transform:translateY(1px)}.ed-home-sample{color:#f8f4eb;background:#103e39;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:clamp(34px,6vw,78px);margin-top:52px;padding:clamp(34px,5vw,60px);display:grid}.ed-home-sample .ed-home-kicker,.ed-home-sample-kicker{color:var(--gold);letter-spacing:.09em;text-transform:uppercase;font-size:.8rem;font-weight:780;display:block}.ed-home-sample h2{max-width:26ch;font-family:var(--font-display);font-variation-settings:normal;letter-spacing:-.006em;text-wrap:balance;color:#f8f4eb;margin:12px 0 16px;font-size:clamp(1.6rem,2.75vw,2.4rem);font-weight:600;line-height:1.24}.ed-home-sample>div>p{color:#f8f4ebc2;max-width:64ch;margin:0;font-size:.94rem;line-height:1.78}.ed-home-sample-action{color:#fffaf0;border:1px solid #ffffff42;border-radius:8px;align-items:center;gap:18px;min-height:47px;margin-top:26px;padding:0 16px;font-size:.88rem;font-weight:740;text-decoration:none;display:inline-flex}.ed-home-sample-action:hover{background:#ffffff14}.ed-home-proof{align-content:center;display:grid}.ed-home-proof div{border-bottom:1px solid #ffffff26;grid-template-columns:96px 1fr;gap:18px;padding:18px 0;display:grid}.ed-home-proof div:last-child{border-bottom:0}.ed-home-proof b{color:#e5cb93;font-family:var(--font-display);font-variation-settings:normal;font-size:.96rem;font-weight:600;line-height:1.4}.ed-home-proof span{color:#f8f4ebb8;font-size:.88rem;line-height:1.65}.ed-home-method{border-top:1px solid var(--line);grid-template-columns:.62fr 1.38fr;gap:48px;margin-top:56px;padding-top:31px;display:grid}.ed-home-method>h2{max-width:19ch;font-family:var(--font-display);font-variation-settings:normal;letter-spacing:-.008em;margin:0;font-size:1.6rem;font-weight:600;line-height:1.35}.ed-home-method-cols{grid-template-columns:repeat(3,1fr);gap:30px;display:grid}.ed-home-method-cols p{align-content:start;gap:9px;margin:0;display:grid}.ed-home-method-cols b{font-size:.98rem;font-weight:700}.ed-home-method-cols span{color:var(--muted);font-size:.96rem;line-height:1.72}.ed-home-trust{border-top:1px solid var(--line);text-align:center;margin:44px 0 0;padding-top:18px}.ed-home-trust a{min-height:44px;color:var(--ink-soft);letter-spacing:.02em;align-items:center;font-size:.96rem;font-weight:650;text-decoration:none;display:inline-flex}.ed-home-trust a:hover{color:var(--accent)}html[lang=en] .ed-main{padding-bottom:clamp(30px,3vw,44px)}@media (width<=900px){.ed-home-hero{padding:28px 0 32px;display:block}.ed-home-title{max-width:none}.ed-home-aside{max-width:none;margin-top:16px;padding-top:14px;display:block}.ed-paths{grid-template-columns:1fr;gap:12px}.ed-path{min-height:0;padding:22px 20px}.ed-path h2{max-width:none}.ed-path-wm{font-size:2.7rem;top:8px;right:14px}.ed-home-sample{grid-template-columns:1fr;gap:25px;margin-top:34px;padding:28px 20px}.ed-home-sample-action{justify-content:space-between;width:100%}.ed-home-proof div{grid-template-columns:84px 1fr;padding:14px 0}.ed-home-method{grid-template-columns:1fr;gap:21px;margin-top:40px}.ed-home-method>h2{max-width:none}.ed-home-method-cols{grid-template-columns:1fr;gap:17px}}html[lang=en] .ed-footer{background:linear-gradient(#ebe6dc8c,#ebe6dc 42%);border-top:1px solid #d6d0c4}html[lang=en] .ed-footer-inner{gap:26px clamp(36px,6vw,88px);padding-top:36px;padding-bottom:26px}@media (width>=860px){html[lang=en] .ed-footer-inner{grid-template-columns:minmax(250px,1.05fr) minmax(300px,1.2fr) minmax(180px,.75fr)}}html[lang=en] .ed-footer .ed-footer-mark{width:46px;height:27px;margin-bottom:12px;display:block}html[lang=en] .ed-footer .ed-footer-mark .ed-route{fill:none;stroke:#1d655d57;stroke-width:1.5px;stroke-linecap:round}html[lang=en] .ed-footer .ed-footer-mark :is(.ed-arrow,.ed-origin,.ed-junction,.ed-destination){fill:#1d655d8c}html[lang=en] .ed-footer strong{font-size:1.08rem}html[lang=en] .ed-footer p{color:var(--ink-soft);font-size:.94rem}html[lang=en] .ed-footer h2{color:#6b5c33}html[lang=en] .ed-footer-group nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}html[lang=en] .ed-footer nav a{min-height:36px;color:var(--ink);font-size:.94rem;font-weight:600}html[lang=en] .ed-footer-legal{color:var(--ink-soft);border-top:1px solid #a9b0a973;padding-top:16px;font-size:.88rem}@media (width<=720px){html[lang=en] .ed-footer nav a{min-height:44px}html[lang=en] .ed-footer-inner{padding-top:30px}}@media (width<=560px){.ed-home-title{letter-spacing:-.015em;line-height:1.14}.ed-home-kicker{margin-bottom:16px}.ed-path-wm{display:none}.ed-path-eyebrow{letter-spacing:.028em;text-wrap:balance;margin-bottom:14px;padding-right:0;font-size:.78rem;line-height:1.5}.ed-paths{gap:18px}.ed-path{padding:24px 20px}.ed-path-sum{margin-top:12px}.ed-path-outcomes{margin:20px 0 16px}}@media (prefers-reduced-motion:reduce){html[lang=en] .ed-page *,html[lang=en] .ed-page :before,html[lang=en] .ed-page :after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}