@charset "UTF-8";
/* Site palette: warm editorial paper, ink, jade and restrained orange. */
:root{--paper:#f7f4ef;--white:#fffefa;--ink:#162b2c;--ink2:#294345;--secondary:#526263;--line:#d5dad3;--teal:#285d5b;--mint:#c2d9cd;--orange:#c66f43;--cream:#ece5d8;--sand:#e1d4be;--shadow:0 28px 75px rgba(14,37,36,.11);--max:1330px;--body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--display:Georgia,"Songti SC","STSong",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}::selection{background:#d8aa84;color:#142d2d}a{color:inherit;text-decoration:none}button{font:inherit}a,button{touch-action:manipulation}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.17}h1,h2{letter-spacing:-.035em}h3{letter-spacing:-.02em}p{color:var(--secondary)}:focus-visible{outline:3px solid var(--orange);outline-offset:4px}a:hover{color:var(--teal)}.skip-link{position:absolute;left:1rem;top:-5rem;z-index:1000;padding:.55rem 1rem;background:var(--ink);color:white}.skip-link:focus{top:1rem;color:white}.eyebrow{font-size:.75rem;color:var(--teal);font-weight:800;letter-spacing:.19em;text-transform:uppercase}.site-header{background:rgba(247,244,239,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}.header-inside{max-width:var(--max);margin:auto;min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:10px 37px}.brand{display:inline-flex;align-items:center;gap:.85rem;flex:none}.brand:hover{color:var(--ink)}.brand-mark{font-family:var(--display);font-size:2.45rem;line-height:1;font-weight:800;color:var(--white);background:var(--ink);width:54px;height:54px;display:flex;align-items:center;justify-content:center;letter-spacing:-.13em;padding-right:.12em}.brand-mark span{color:#e3a175}.brand-words{display:grid;line-height:1.15;gap:6px}.brand-words strong{font-size:1.12rem;letter-spacing:.16em}.brand-words small{font-size:.59rem;color:var(--secondary);letter-spacing:.2em;font-weight:700}.site-nav{display:flex;align-items:center;gap:clamp(.6rem,1.5vw,1.7rem);flex-wrap:wrap}.site-nav a{color:var(--ink2);font-size:.84rem;white-space:nowrap;font-weight:650;padding:.5rem .12rem;position:relative}.site-nav a::after{content:"";position:absolute;left:0;right:100%;height:2px;background:var(--orange);bottom:0;transition:right .2s ease}.site-nav a:hover::after,.site-nav a[aria-current]::after{right:0}.site-nav a[aria-current]{color:var(--teal)}.menu-toggle{display:none}.homepage-shell{max-width:var(--max);margin:0 auto;padding:0 37px}.home-lead{display:grid;grid-template-columns:70px minmax(0,1fr) minmax(240px,.82fr);column-gap:2.1rem;align-items:stretch;min-height:670px;padding:92px 0 90px;border-bottom:1px solid var(--line)}.lead-number{color:#899592;font-size:.67rem;font-weight:800;letter-spacing:.13em;writing-mode:vertical-rl;transform:rotate(180deg);border-left:1px solid var(--line);align-self:stretch;text-align:right;padding:0 0 15px 14px}.lead-main{align-self:center;position:relative;z-index:1}.lead-main .eyebrow{margin-bottom:32px}.lead-main h1{font-family:var(--display);font-size:clamp(3.2rem,5vw,6.15rem);line-height:1.13;max-width:760px;margin-bottom:37px;letter-spacing:-.07em;font-weight:800}.lead-main h1 em{font-weight:500;font-style:normal;color:var(--teal)}.lead-desc{max-width:540px;font-size:1.02rem;line-height:2.05;margin-bottom:34px}.lead-actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px}.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:2.6rem;border:1px solid var(--ink);background:var(--ink);color:white;padding:15px 23px;font-size:.87rem;font-weight:700;min-height:54px;transition:background .2s,transform .2s}.button-primary:hover{color:white;background:var(--teal);transform:translateY(-2px)}.quiet-link{font-size:.85rem;font-weight:700;border-bottom:1px solid var(--ink);padding:9px 0}.lead-visual{position:relative;align-self:stretch;min-height:435px;margin:8px 0 0}.hero-image{height:100%;min-height:435px;max-height:580px;width:100%;object-fit:cover;background:linear-gradient(145deg,#526f68,#172f30)}.vertical-annotation{position:absolute;bottom:-25px;right:20px;color:white;background:var(--orange);font-size:.64rem;letter-spacing:.2em;font-weight:800;padding:11px 18px}.editorial-intro{padding:100px 0 56px}.intro-flex{display:grid;grid-template-columns:1.15fr .85fr;gap:100px;align-items:end}.intro-flex h2{font-family:var(--display);font-size:clamp(2.3rem,4vw,4.25rem);line-height:1.24;margin:5px 0 0}.intro-flex p{max-width:470px;line-height:2.1;margin-bottom:0;font-size:1.02rem}.topic-feature-grid{display:grid;grid-template-columns:1.2fr .8fr;grid-template-rows:repeat(2,minmax(285px,auto));gap:18px;padding-bottom:105px}.topic-tile{display:flex;overflow:hidden;position:relative;background:var(--cream);min-height:310px;isolation:isolate}.tile-first{grid-row:span 2;display:flex;flex-direction:column;min-height:620px}.tile-dark{background:var(--ink);color:var(--white)}.tile-warm{background:#d5bd9e}.tile-text{padding:35px 38px;position:relative;z-index:2;flex:1}.tile-index{font-size:.68rem;letter-spacing:.18em;font-weight:900}.topic-tile h3{font-family:var(--display);font-size:clamp(2rem,3vw,3.5rem);margin:14px 0 16px}.topic-tile p{max-width:340px;line-height:1.9;font-size:.93rem;color:inherit;opacity:.83;margin-bottom:30px}.tile-link{display:inline-block;font-size:.79rem;font-weight:800;border-bottom:1px solid currentColor;padding-bottom:7px}.tile-first .tile-text{flex:0 0 auto}.tile-image{height:240px;width:42%;object-fit:cover;align-self:stretch;background:#8fa7a0}.tile-first .tile-image{width:100%;height:100%;min-height:250px;flex:1}.tile-dark .tile-image{filter:saturate(.8)}.topic-tile:hover .tile-image{transform:scale(1.03)}.topic-tile .tile-image{transition:transform .4s ease}.topic-tile:hover{color:inherit}.reading-band{display:grid;grid-template-columns:1fr .85fr;gap:70px;background:var(--ink);margin:0 -37px;padding:85px 80px;color:var(--white);align-items:center;min-height:500px}.reading-band .eyebrow{color:#a8d4c6}.reading-band h2{font-family:var(--display);font-size:clamp(2.2rem,3.7vw,4rem);max-width:640px}.reading-band p{color:#c9d9d5;font-size:1rem;line-height:2;max-width:520px}.underline-action{font-weight:700;display:inline-block;margin-top:17px;padding-bottom:7px;border-bottom:1px solid #c7d9d2}.underline-action:hover{color:#e3ac82}.band-image{align-self:stretch;min-height:310px}.band-img{width:100%;height:100%;object-fit:cover;background:linear-gradient(135deg,#486f68,#9bbdb0)}.guide-duo{padding:110px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:.85fr 1.15fr;gap:70px}.guide-head h2{font-family:var(--display);font-size:clamp(2rem,3.5vw,3.75rem);max-width:450px}.guide-columns{display:grid;grid-template-columns:1fr 1fr;gap:40px}.guide-columns article{border-top:2px solid var(--ink);padding-top:24px}.round-icon{width:52px;height:52px;border-radius:50%;border:1px solid var(--ink);display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:43px}.guide-columns h3{font-size:1.29rem;margin:0 0 18px;line-height:1.5}.guide-columns p{font-size:.87rem;line-height:2.05}.guide-columns a{display:inline-block;border-bottom:1px solid var(--teal);font-size:.85rem;font-weight:800;padding-bottom:8px;margin-top:14px}.home-index{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px;padding:100px 0 125px}.home-index h2{font-family:var(--display);font-size:clamp(2rem,3vw,3.1rem)}.index-links{border-top:1px solid var(--line)}.topic-link{display:grid;grid-template-columns:1fr minmax(120px,.8fr) 20px;gap:20px;align-items:center;padding:19px 4px;border-bottom:1px solid var(--line);transition:background .2s}.topic-link>span:first-child{font-size:1rem;font-weight:750;line-height:1.45}.topic-link small{font-size:.75rem;color:var(--secondary);line-height:1.65}.topic-link:hover{background:#e9eee8}.site-footer{background:#102b2a;color:white;padding:77px max(37px,calc((100vw - var(--max))/2 + 37px)) 34px}.footer-top{display:grid;grid-template-columns:1fr 1fr;gap:90px;padding-bottom:78px}.footer-brand{font-family:var(--display);font-size:2.1rem;font-weight:800;margin-bottom:15px}.footer-top p{max-width:360px;color:#afc3bc;line-height:2}.footer-top nav{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;align-content:start}.footer-top nav a{font-size:.9rem;color:#e5f1ec;padding:6px 0}.footer-top nav a:hover{color:#d4ad83}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #35504c;padding-top:24px;color:#acbcb8;font-size:.75rem;gap:20px}.footer-bottom a:hover{color:white}
/* Interior reading layout */
.article-layout{max-width:var(--max);padding:42px 37px 115px;margin:auto}.breadcrumbs{display:flex;flex-wrap:wrap;gap:12px;align-items:center;color:#727d79;font-size:.75rem;margin-bottom:80px}.breadcrumbs a{text-decoration:underline;text-decoration-color:#aebbb5;text-underline-offset:4px}.article-top{max-width:1100px}.article-top .eyebrow{margin-bottom:25px}.article-top h1{font-family:var(--display);font-size:clamp(2.8rem,5vw,5.25rem);max-width:1000px;line-height:1.2;margin-bottom:35px}.article-deck{font-size:1.1rem;line-height:2;max-width:710px;margin-bottom:57px}.article-visual{width:100%;max-height:520px;overflow:hidden;background:#d3ddd5}.article-hero{width:100%;height:clamp(300px,34vw,520px);object-fit:cover}.article-content{display:grid;grid-template-columns:265px minmax(0,1fr);gap:80px;margin-top:80px}.toc-sticky{position:sticky;top:127px;border-top:2px solid var(--ink);padding-top:23px}.toc-sticky .eyebrow{display:block;margin-bottom:20px}.toc-sticky>a{display:flex;align-items:flex-start;gap:15px;font-size:.82rem;line-height:1.6;border-bottom:1px solid var(--line);padding:16px 0;color:var(--ink2)}.toc-sticky>a:hover{color:var(--orange)}.toc-sticky>a span{color:#84918c;font-family:var(--display);font-size:.83rem}.prose-section{display:grid;grid-template-columns:50px minmax(0,1fr);gap:24px;border-bottom:1px solid var(--line);padding:12px 0 69px;margin-bottom:64px;scroll-margin-top:120px}.section-counter{font-family:var(--display);color:var(--orange);font-size:1.2rem;line-height:1.5}.section-text{max-width:730px}.section-text h2{font-family:var(--display);font-size:clamp(1.9rem,2.8vw,2.8rem);margin-bottom:29px}.section-text p{font-size:1rem;line-height:2.25;margin:0 0 21px}.detail-list{background:#e6ebe3;padding:27px 37px 27px 48px;margin-top:35px;margin-bottom:0;color:var(--ink2);font-size:.92rem;line-height:2.1}.detail-list li{padding:5px 0}.detail-list li::marker{color:var(--teal)}.note{margin:20px 0 85px 74px;border-left:4px solid var(--orange);background:#eee6d8;padding:24px 30px}.note strong{font-size:.96rem}.note p{line-height:2;margin:12px 0 0;font-size:.87rem}.related{margin-top:24px;padding:78px 0 0;border-top:2px solid var(--ink)}.related .section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:25px;margin-bottom:28px}.related .section-heading h2{font-family:var(--display);font-size:clamp(1.8rem,2.8vw,3rem);margin:0}.related-grid{border-top:1px solid var(--line)}.not-found{max-width:950px;margin:0 auto;min-height:65vh;padding:120px 35px}.not-found h1{font:800 clamp(2.6rem,5vw,5rem)/1.2 var(--display);margin:20px 0}.not-found p{max-width:580px;line-height:2;margin-bottom:37px}.not-found-links{display:flex;flex-wrap:wrap;gap:15px 27px;border-top:1px solid var(--line);margin-top:70px;padding-top:25px}.not-found-links a{font-weight:650;font-size:.85rem}
/* Comprehensive responsive strategies for reading, touch, and smaller screens. */
@media(max-width:1200px){.header-inside{padding:12px 26px;min-height:86px}.site-nav{gap:12px}.site-nav a{font-size:.77rem}.homepage-shell{padding:0 26px}.home-lead{grid-template-columns:36px minmax(0,1.1fr) minmax(230px,.9fr);gap:25px;padding:65px 0}.lead-main h1{font-size:clamp(3rem,5vw,5.2rem)}.reading-band{margin:0 -26px;padding:70px 50px}.guide-duo{gap:45px}.article-layout{padding-left:26px;padding-right:26px}.article-content{gap:55px;grid-template-columns:230px 1fr}}
@media(max-width:990px){.header-inside{min-height:78px;flex-wrap:wrap}.brand-mark{height:46px;width:46px;font-size:2rem}.site-nav{width:100%;justify-content:space-between;gap:9px;border-top:1px solid var(--line);padding:6px 0}.home-lead{min-height:580px}.lead-main h1{font-size:clamp(2.7rem,6vw,4.7rem)}.lead-visual{min-height:340px}.hero-image{min-height:340px}.intro-flex{gap:40px}.topic-tile h3{font-size:2.25rem}.tile-text{padding:27px}.guide-duo{grid-template-columns:1fr;gap:15px}.guide-head h2{max-width:660px}.guide-columns{gap:35px}.article-content{grid-template-columns:1fr;margin-top:50px}.article-toc{display:none}.article-top h1{max-width:850px}.prose-section{max-width:850px;margin-left:auto;margin-right:auto}.note{max-width:790px;margin-left:auto;margin-right:auto}}
@media(max-width:730px){html{scroll-padding-top:72px}.site-header{position:sticky;top:0}.header-inside{padding:10px 19px;min-height:70px;flex-wrap:nowrap}.brand-words small{letter-spacing:.1em;font-size:.55rem}.menu-toggle{width:46px;height:43px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;background:transparent;border:1px solid var(--line);cursor:pointer;flex:none}.menu-toggle span{display:block;width:21px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.site-nav{display:none;position:absolute;top:100%;left:0;right:0;width:auto;max-height:calc(100dvh - 70px);overflow:auto;background:var(--paper);padding:14px 20px 23px;box-shadow:0 18px 30px #142b2930;border-top:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.site-nav.is-open{display:flex}.site-nav a{font-size:.95rem;padding:12px 4px;border-bottom:1px solid var(--line)}.site-nav a::after{display:none}.homepage-shell{padding:0 19px}.home-lead{grid-template-columns:1fr;gap:0;padding:52px 0 65px;min-height:unset}.lead-number{display:none}.lead-main .eyebrow{margin-bottom:22px}.lead-main h1{font-size:clamp(2.65rem,10vw,4.25rem);margin-bottom:25px}.lead-desc{font-size:.95rem;line-height:1.95;margin-bottom:26px}.lead-actions{gap:16px}.lead-visual{margin-top:38px;height:310px;min-height:310px}.hero-image{height:100%;min-height:310px}.vertical-annotation{bottom:-15px;right:10px}.editorial-intro{padding:70px 0 35px}.intro-flex{grid-template-columns:1fr;gap:15px}.intro-flex h2{font-size:clamp(2.2rem,8vw,3.3rem)}.intro-flex p{font-size:.95rem}.topic-feature-grid{display:flex;flex-direction:column;gap:13px;padding-bottom:73px}.topic-tile,.tile-first{min-height:unset;display:grid;grid-template-columns:1fr .38fr;align-items:stretch}.tile-first .tile-text{flex:initial}.topic-tile .tile-image,.tile-first .tile-image{width:100%;min-height:100%;height:100%;object-fit:cover}.topic-tile h3{font-size:1.9rem}.topic-tile p{font-size:.83rem;margin-bottom:16px}.tile-text{padding:25px 20px}.tile-index{font-size:.62rem}.tile-link{font-size:.75rem}.reading-band{grid-template-columns:1fr;gap:30px;margin:0 -19px;padding:65px 22px}.reading-band h2{font-size:2.55rem}.reading-band p{font-size:.92rem}.band-image{min-height:220px;height:230px}.guide-duo{padding:72px 0;gap:28px}.guide-head h2{font-size:2.5rem}.guide-columns{grid-template-columns:1fr;gap:40px}.round-icon{margin-bottom:20px}.guide-columns article{padding-top:20px}.home-index{padding:75px 0;grid-template-columns:1fr;gap:14px}.topic-link{grid-template-columns:minmax(0,1fr) 25px;gap:12px}.topic-link small{grid-column:1;grid-row:2}.topic-link>span:last-child{grid-column:2;grid-row:1;justify-self:end}.site-footer{padding:60px 22px 30px}.footer-top{grid-template-columns:1fr;gap:35px;padding-bottom:50px}.footer-bottom{flex-wrap:wrap}.article-layout{padding:23px 20px 75px}.breadcrumbs{margin-bottom:52px}.article-top .eyebrow{margin-bottom:18px}.article-top h1{font-size:clamp(2.65rem,9vw,4.25rem);margin-bottom:22px}.article-deck{font-size:.97rem;line-height:1.95;margin-bottom:35px}.article-hero{height:260px}.article-content{margin-top:55px}.prose-section{grid-template-columns:1fr;gap:3px;padding-bottom:35px;margin-bottom:37px}.section-counter{font-size:1rem}.section-text h2{font-size:2.1rem;margin:8px 0 20px}.section-text p{font-size:.96rem;line-height:2.05}.detail-list{padding:21px 25px 21px 34px;margin-top:23px;font-size:.84rem}.note{padding:22px 20px;margin-bottom:60px}.related{padding-top:50px}.related .section-heading{display:block}.related .section-heading h2{margin-top:15px;font-size:2rem}.not-found{padding:80px 20px}}
@media(max-width:390px){.brand-mark{width:40px;height:40px;font-size:1.8rem}.brand-words strong{font-size:1rem}.brand-words small{font-size:.51rem}.lead-main h1{font-size:2.52rem}.lead-actions{flex-direction:column;align-items:stretch}.quiet-link{text-align:center}.topic-tile,.tile-first{grid-template-columns:1fr .29fr}.topic-tile h3{font-size:1.65rem}.tile-text{padding:23px 16px}.tile-text p{font-size:.78rem}.section-text h2{font-size:1.88rem}}
@media(min-width:731px){.site-nav{display:flex!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media print{.site-header,.site-footer,.lead-actions,.article-toc{display:none!important}body{background:white;color:black;font-size:11pt}.article-layout,.homepage-shell{max-width:none;padding:0}.article-content{display:block}.prose-section{break-inside:avoid}.section-text p{color:#222}.article-hero{max-height:280px}.related{break-before:page}}
/* Reading enhancements across unusual viewport shapes and accessibility preferences. */
@media(min-width:1350px){.home-lead{padding-top:112px;padding-bottom:112px}.intro-flex p{font-size:1.07rem}.article-top{padding-left:25px}.article-visual{max-width:1130px}.related-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:40px}.related-grid .topic-link:nth-child(1),.related-grid .topic-link:nth-child(2){border-top:0}}
@media(min-width:731px) and (max-height:660px){.site-header{position:relative}.toc-sticky{position:static}.home-lead{min-height:0;padding-top:58px;padding-bottom:58px}.lead-visual,.hero-image{min-height:340px}.article-hero{height:330px}}
@media(max-width:730px) and (orientation:landscape){.site-nav{max-height:70dvh}.lead-visual{height:235px;min-height:235px}.hero-image{min-height:235px}.home-lead{padding-top:30px}.guide-duo{padding-top:55px;padding-bottom:55px}}
@media(hover:hover) and (pointer:fine){.site-nav a:hover{transform:translateY(-1px)}.topic-link:hover>span:last-child{transform:translate(2px,-2px);transition:transform .18s}.guide-columns article a:hover{border-color:var(--orange);color:var(--orange)}.footer-top nav a:hover{text-decoration:underline;text-underline-offset:5px}.breadcrumbs a:hover{text-decoration-color:var(--orange)}}
@media(hover:none){.topic-tile .tile-image{transform:none!important}.topic-link:hover{background:transparent}.button-primary:hover{transform:none}.site-nav a{min-height:43px}.footer-top nav a{min-height:43px;display:flex;align-items:center}}
@media(prefers-contrast:more){:root{--secondary:#354243;--line:#7d8d88;--teal:#174b49}.eyebrow{color:#124341}.quiet-link,.underline-action,.topic-link{border-width:2px}.site-nav a[aria-current]{font-weight:900;text-decoration:underline;text-underline-offset:6px}.detail-list{border:1px solid var(--ink)}.site-footer .footer-top p,.footer-bottom{color:#e7eeeb}}
@supports not (backdrop-filter:blur(10px)){.site-header{background:var(--paper)}}
@supports (height:100dvh){.site-nav.is-open{overscroll-behavior:contain}}
.article-toc a[aria-current="location"]{font-weight:850;color:var(--orange);border-bottom-color:var(--orange)}
.section-text p a{text-decoration:underline;text-decoration-color:var(--teal);text-underline-offset:4px}
.section-text p a:hover{color:var(--orange)}
article,section{min-width:0} .article-prose,.section-text,.lead-main,.lead-visual{min-width:0;overflow-wrap:break-word}
@media(max-width:500px){.article-deck{overflow-wrap:anywhere}.site-nav a{padding:13px 5px}.topic-link>span:first-child{font-size:.94rem}.footer-top nav{column-gap:15px}.footer-top nav a{font-size:.83rem}.detail-list li{padding:8px 0}.guide-columns article p{max-width:39ch}.article-top h1{text-wrap:pretty}}
@media print{a{color:#111!important}.site-footer{display:none}.topic-link{break-inside:avoid}.article-layout{max-width:100%;margin:0}.article-top h1{font-size:25pt}.section-text h2{font-size:17pt}.detail-list{background:none;border:1px solid #777}.note{background:none;border:1px solid #777;border-left-width:4px}.prose-section{padding:15pt 0;margin-bottom:0}.section-counter{color:#333}.related{display:none}}