*,*::before,*::after{box-sizing:border-box}*{margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:100px;color-scheme:light}body{--ink:#252b29;--ink-2:#39423d;--ink-light:#59635e;--ink-faint:#6e7771;--cream:#faf9f5;--paper:#f2f1ea;--paper-2:#eaece5;--paper-3:#e2e6dd;--paper-4:#d3d9cd;--accent:#365847;--accent-2:#4b6955;--accent-3:#b5c39f;--line:#dce0d5;--line-2:#e8eae2;--accent-bg:#eaf0e6;--font-sans:Inter,"Segoe UI","Microsoft YaHei",system-ui,sans-serif;--font-serif:"Noto Serif SC","Songti SC",SimSun,Georgia,serif;background:var(--cream);color:var(--ink);font:15px/1.8 var(--font-sans);overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
body[data-theme=dark]{color-scheme:dark;--ink:#e7ebe2;--ink-2:#ced7cb;--ink-light:#bac5b7;--ink-faint:#9aa794;--cream:#1c2420;--paper:#222d26;--paper-2:#2b382e;--paper-3:#344538;--paper-4:#465b49;--accent:#b5c99d;--accent-2:#c2d5ac;--accent-3:#60764e;--line:#3b493e;--line-2:#303e34;--accent-bg:#2c3c2f}
body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer;color:inherit}button,a,input,textarea{touch-action:manipulation}img{display:block;max-width:100%}svg{width:20px;height:20px;flex-shrink:0;vertical-align:middle}button{border:0;background:none}a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:5px}::selection{background:var(--paper-4)}[hidden]{display:none!important}.container{width:min(1184px,100%);padding-inline:40px;margin-inline:auto}body>section:not(#rtx-chat-panel),main>section{padding-block:76px}section[id],[id^=note-],[id^=daily-],[id^=gallery-]{scroll-margin-top:100px}.skip-link{position:fixed;top:-100px;left:20px;z-index:10001;padding:10px 18px;background:var(--ink);color:var(--cream)}.skip-link:focus{top:10px}
nav{height:82px;position:sticky;top:0;background:var(--cream);border-bottom:1px solid var(--line);z-index:100}.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}.nav-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand-mark{font:italic 40px/1 Georgia,serif;color:var(--accent);letter-spacing:-5px;padding-right:5px}.brand-name{font-size:16px;font-weight:650;line-height:1.3}.brand-name small{display:block;font-size:8px;letter-spacing:2.2px;font-weight:500;color:var(--ink-faint);margin-top:6px}.nav-links{display:flex;list-style:none;gap:28px}.nav-links a{font-size:14px;color:var(--ink-light);padding-block:12px}.nav-links a:hover{color:var(--accent)}.nav-right{display:flex;align-items:center;gap:8px}.icon-button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-width:42px;min-height:42px;border-radius:8px}.icon-button:hover{background:var(--paper-2)}.theme-toggle{font-size:23px}.nav-tool-link{display:flex;align-items:center;gap:10px;padding:10px 16px;margin-left:8px;background:var(--accent);color:var(--cream);font-size:12px;border-radius:6px;white-space:nowrap}.nav-tool-link svg{width:15px}.nav-burger{display:none;flex-direction:column;gap:6px}.nav-burger span{width:18px;height:1.5px;background:currentColor;transition:transform .2s}.nav-burger[aria-expanded=true] span:first-child{transform:translateY(3.75px) rotate(45deg)}.nav-burger[aria-expanded=true] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.mobile-menu{position:fixed;inset:82px 0 0;background:var(--cream);z-index:99;padding:20px 32px;overflow:auto}.mobile-menu-links{list-style:none}.mobile-menu-links a{display:flex;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:18px}.mobile-menu-links span{color:var(--ink-faint)}
body #hero{padding-block:70px 68px}.hero-inner{display:grid;grid-template-columns:1.6fr 1fr;gap:80px;align-items:center}.hero-eyebrow,.section-label{font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:600}.hero-eyebrow{margin-bottom:24px;letter-spacing:3px}.hero-title{font:500 clamp(36px,4.5vw,58px)/1.4 var(--font-serif);letter-spacing:1px}.hero-title em{font-style:normal;color:var(--accent)}.hero-desc{margin-top:22px;color:var(--ink-light);line-height:1.9}.hero-actions{display:flex;gap:24px;align-items:center;margin-top:30px;flex-wrap:wrap}.btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:18px;font-size:13px;min-height:48px;border-radius:6px}.btn-primary{padding:12px 22px;background:var(--ink);color:var(--cream)}.btn-primary:hover{background:var(--accent)}.btn-ghost{color:var(--accent);border-bottom:1px solid var(--line);border-radius:0}.hero-latest{display:flex;align-items:center;gap:10px;margin-top:32px;color:var(--ink-faint);font-size:11px}.hero-latest>span:nth-of-type(2){color:var(--ink-light)}.hero-latest svg{width:14px}.status-dot{width:6px;height:6px;background:var(--accent);border-radius:50%;flex-shrink:0}.hero-note{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:30px;position:relative;min-height:286px;display:flex;flex-direction:column;justify-content:space-between}.hero-note::before{content:'';position:absolute;inset:7px;border:1px solid var(--line-2);pointer-events:none}.note-top,.note-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--ink-faint);font-size:9px;letter-spacing:1px}.note-top>span:last-child{font-size:20px}.hero-note p{font:500 22px/1.85 var(--font-serif);color:var(--ink-light);margin:26px 0}.note-sign{font:italic 17px Georgia,serif;color:var(--accent)}
.section-header{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.section-title{font-size:25px;font-weight:550;line-height:1.4;letter-spacing:.2px;margin-top:9px}.section-more{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--accent);min-height:44px}.section-more svg{width:15px}.section-hint{font-size:12px;color:var(--ink-faint)}body #tools{padding-block:38px 62px}.tool-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:18px}.tool-card{border:1px solid var(--line);border-radius:10px;padding:26px;display:flex;flex-direction:column;background:var(--cream);transition:border-color .2s,background .2s}.tool-card:hover{border-color:var(--accent);background:var(--paper)}.tool-featured{background:var(--accent-bg)}.tool-top{display:flex;align-items:center;gap:12px;margin-bottom:24px;color:var(--accent)}.tool-top>svg{margin-left:auto;width:18px}.tool-symbol{font-size:26px;line-height:1}.tool-badge{font-size:10px;border:1px solid var(--line);border-radius:4px;padding:2px 7px}.tool-card h3{font-size:18px;font-weight:600;margin-bottom:9px}.tool-card p{font-size:12px;line-height:1.9;color:var(--ink-light);max-width:290px}.tool-action{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:25px;font-size:11px;color:var(--accent)}.tool-action svg{width:14px}
.daily{background:var(--paper);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}.daily-featured{position:relative;display:grid;grid-template-columns:1fr 1.2fr;gap:50px;background:var(--cream);padding:34px;border:1px solid var(--line);border-radius:8px;margin-bottom:22px}.daily-featured-date{position:absolute;right:24px;top:12px;font-size:10px;color:var(--ink-faint)}.daily-featured-label{font-size:10px;color:var(--accent);letter-spacing:2px;margin-bottom:12px}.daily-featured-quote{font:500 22px/1.65 var(--font-serif)}.daily-featured-desc{font-size:13px;color:var(--ink-light);padding-top:7px}.daily-featured-tags,.about-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.tag{font-size:10px;line-height:1.6;padding:4px 9px;background:var(--paper-2);color:var(--ink-light);border-radius:4px}.daily-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.daily-card{border-top:1px solid var(--line);padding:20px 0 0}.daily-card-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;font-size:10px;color:var(--ink-faint)}.daily-tag{color:var(--accent)}.daily-text{font-size:14px;line-height:1.8}.daily-text-sub{font-size:12px;color:var(--ink-faint);margin-top:10px}
.note-filters{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:12px 0 26px}.note-filters button{padding:9px 16px;font-size:12px;border:1px solid var(--line);border-radius:5px}.note-filters button:hover{background:var(--paper)}.note-filters button[aria-pressed=true]{background:var(--ink);color:var(--cream);border-color:var(--ink)}#noteCount{margin-left:auto;font-size:11px;color:var(--ink-faint)}.notes-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}.article-card,.side-card{border-top:1px solid var(--line);padding:25px 0;min-width:0}.article-category,.side-card-tag{font-size:10px;color:var(--accent);margin-bottom:12px}.article-title,.side-card-title{font-size:18px;font-weight:500;line-height:1.6;max-width:460px}.article-excerpt{font-size:12px;color:var(--ink-light);margin-top:12px;max-width:470px}.article-meta,.side-card-footer{display:flex;gap:16px;align-items:center;color:var(--ink-faint);font-size:10px;margin-top:18px}.article-meta svg{width:12px}.article-number,.side-card-header{display:none}.side-card-footer .side-card-tag{margin:0}.side-card-title{margin-top:0}.side-card{display:flex;flex-direction:column;justify-content:space-between}.side-card-footer{justify-content:space-between}.content-note{border-top:1px solid var(--line);padding-top:20px;color:var(--ink-faint);font-size:12px}.content-note a{color:var(--accent)}
.gallery{background:var(--paper)}.gallery-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.gallery-item{position:relative;aspect-ratio:1.2;overflow:hidden;border-radius:6px;cursor:pointer}.gallery-item:first-child{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}.gallery-item-bg{position:absolute;inset:0}.gallery-item-bg.g1{background:linear-gradient(135deg,#c4b598,#a8946e)}.gallery-item-bg.g2{background:linear-gradient(135deg,#b8a890,#9a8870)}.gallery-item-bg.g3{background:linear-gradient(135deg,#beb6a2,#968a78)}.gallery-item-bg.g4{background:linear-gradient(135deg,#c0b89e,#a09078)}.gallery-item-bg.g5{background:linear-gradient(135deg,#ccc0a8,#b0a088)}.gallery-item-bg::after{content:'';position:absolute;inset:18%;border:1px solid #ffffff50;transform:rotate(-12deg)}.gallery-item-overlay{position:absolute;inset:0;display:flex;justify-content:space-between;align-items:end;padding:16px;background:linear-gradient(transparent 35%,#29262165);color:#fff;font-size:11px}.gallery-item:hover .gallery-item-overlay{background:linear-gradient(transparent 10%,#29262190)}.gallery-item-num{font-size:10px;opacity:.75}.gallery-item:focus-visible{outline-offset:3px}
body #topics{padding-block:50px}.topics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 40px}.topic-card{display:flex;align-items:center;gap:16px;padding:18px 0;border-top:1px solid var(--line)}.topic-icon{width:36px;height:36px;background:var(--paper);border-radius:5px;display:grid;place-items:center;color:var(--accent);flex-shrink:0}.topic-card strong{display:block;font-size:13px;font-weight:500}.topic-card small{display:block;font-size:11px;color:var(--ink-faint);margin-top:3px}.topic-card svg{margin-left:auto;width:16px;color:var(--accent)}.topic-card:hover strong{color:var(--accent)}
.about{border-top:1px solid var(--line)}.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:100px}.about-lead{font:500 27px/1.6 var(--font-serif);margin:16px 0}.about-lead em{font-style:normal;color:var(--accent)}.about-body{font-size:13px;color:var(--ink-light)}.about-body p+p{margin-top:12px}.about-links{margin-top:22px}.about-link{display:inline-flex;gap:8px;align-items:center;color:var(--accent);font-size:12px}.about-card{padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:8px}.about-card-top{display:flex;align-items:center;gap:16px;margin-bottom:22px}.about-avatar{width:48px;height:48px;border-radius:8px;object-fit:cover}.about-name{font-size:16px;font-weight:600}.about-handle{font-size:10px;color:var(--ink-faint);margin-top:3px}.about-bio{font-size:13px;color:var(--ink-light)}.contact{background:var(--paper)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.contact-desc{font-size:13px;color:var(--ink-light)}.contact-email{display:inline-flex;gap:12px;align-items:center;margin-top:18px;font-size:17px;color:var(--accent)}.contact-channels{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px}.contact-channel{display:flex;gap:6px;align-items:center;font-size:11px;color:var(--ink-light)}.contact-channel-icon svg{width:14px;height:14px}.contact-channel-status{font-size:9px;color:var(--ink-faint)}.contact-quote{font:italic 28px/1.6 Georgia,serif;color:var(--ink-light);max-width:330px;margin-left:auto}.contact-motto{font-size:10px;color:var(--ink-faint);text-align:right;margin-top:24px}
footer{background:var(--ink);color:var(--cream);padding:32px 0 24px}.footer-top{display:flex;gap:26px;justify-content:space-between;align-items:center;padding-bottom:22px;border-bottom:1px solid #88888850}.footer-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.footer-brand img{width:28px;height:28px;border-radius:4px}.footer-brand-text{font-size:12px}.footer-brand-text span{opacity:.7}.footer-nav{display:flex;gap:10px 18px;flex-wrap:wrap;justify-content:flex-end;font-size:10px;opacity:.85}.footer-nav a:hover{text-decoration:underline}.footer-inner{display:flex;justify-content:space-between;align-items:center;margin-top:20px;font-size:10px;opacity:.8}.back-top{display:grid;place-items:center;width:36px;height:36px;border:1px solid #88888860;border-radius:50%;font-size:16px}.footer-motto-wrap{text-align:center;margin:12px 0;color:inherit;opacity:.6;font:13px/1.8 var(--font-serif)}.footer-motto-en{font-size:8px;margin-top:4px;letter-spacing:.5px}
.site-dialog{position:fixed;inset:0;width:min(620px,calc(100vw - 32px));max-height:min(76vh,720px);margin:auto;padding:26px;background:var(--cream);color:var(--ink);border:1px solid var(--line);border-radius:12px;box-shadow:0 20px 80px #101d1933;overflow:auto}.site-dialog::backdrop{background:#101d1977;backdrop-filter:blur(3px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:16px}.dialog-header h2{font-size:18px;font-weight:550}.dialog-header button{font-size:24px}.search-field{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:7px;padding:8px 14px;background:var(--paper)}.search-field input{width:100%;min-width:0;min-height:38px;background:transparent;border:0;color:var(--ink);font-size:15px}.search-field input:focus{outline-offset:4px}.search-status{font-size:12px;color:var(--ink-faint);margin:18px 0 8px}.search-results{display:flex;flex-direction:column}.search-results a{display:flex;flex-direction:column;gap:4px;padding:15px 12px;border-bottom:1px solid var(--line);border-radius:4px;font-size:14px}.search-results a:hover{background:var(--paper)}.search-results small{font-size:10px;color:var(--accent)}.dialog-footnote{font-size:10px;color:var(--ink-faint);margin-top:20px}.image-dialog{width:min(850px,calc(100vw - 32px))}#imagePreview{position:relative;min-height:240px;aspect-ratio:1.7;border-radius:6px;overflow:hidden}
@media(max-width:1100px){.container{padding-inline:28px}.nav-links{gap:20px}.nav-tool-link{display:none}.hero-inner{gap:40px}.about-grid{gap:50px}}
@media(max-width:960px){nav,.nav-inner{height:70px}.nav-links{display:none}.nav-burger{display:flex}.mobile-menu{top:70px}.hero-inner{grid-template-columns:1.35fr 1fr;gap:28px}.hero-note{padding:24px;min-height:260px}.hero-note p{font-size:18px}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.tool-card{padding:20px}.tool-card h3{font-size:16px}.tool-badge{display:none}.daily-featured{gap:28px}.notes-grid{gap:0 28px}.about-grid{gap:36px}#rtx-chat-panel{padding:0}}
@media(max-width:680px){.container{padding-inline:22px}body>section:not(#rtx-chat-panel),main>section{padding-block:48px}.nav-inner{gap:10px}.brand-mark{font-size:35px}.brand-name{font-size:14px}.brand-name small{font-size:7px}.nav-right{gap:1px}.icon-button{min-width:38px;min-height:42px}.hero-inner{grid-template-columns:1fr;gap:30px}body #hero{padding-block:42px}.hero-title{font-size:38px;line-height:1.4}.hero-eyebrow{font-size:9px;letter-spacing:1.8px;margin-bottom:18px}.hero-desc{font-size:13px}.hero-actions{gap:20px;margin-top:24px}.btn-primary,.btn-ghost{font-size:12px;gap:10px}.hero-note{display:none}.hero-latest{margin-top:24px;font-size:10px;gap:8px}.section-header{align-items:start;gap:12px;margin-bottom:22px}.section-title{font-size:22px}.section-hint{display:none}.section-label{font-size:9px;letter-spacing:1.7px}.section-more{font-size:10px;padding-top:16px;white-space:nowrap}body #tools{padding-block:10px 44px}.tool-grid{grid-template-columns:1fr 1fr;gap:12px}.tool-featured{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;gap:0 18px}.tool-featured .tool-top{grid-column:1/-1;margin-bottom:14px}.tool-featured h3{grid-column:1/-1;font-size:19px}.tool-featured p{max-width:none}.tool-featured .tool-action{align-self:end;padding-top:0;white-space:nowrap}.tool-featured .tool-badge{display:inline}.tool-card{padding:20px}.tool-top{margin-bottom:18px}.tool-card p{font-size:11px}.tool-card h3{font-size:16px}.tool-action{padding-top:18px;font-size:10px}.daily-featured{grid-template-columns:1fr;gap:20px;padding:28px 22px 22px}.daily-featured-quote{font-size:21px}.daily-featured-date{right:18px;font-size:9px}.daily-grid{grid-template-columns:1fr;gap:20px}.daily-card{padding-top:16px}.daily-card-header{margin-bottom:8px}.daily-text-sub{margin-top:6px}.daily-featured-desc{font-size:12px}.note-filters{gap:6px;margin-top:2px}.note-filters button{padding:9px 11px;font-size:11px}#noteCount{width:100%;margin:6px 0 0;font-size:10px}.notes-grid{grid-template-columns:1fr}.article-title,.side-card-title{font-size:17px}.article-card,.side-card{padding-block:22px}.gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.gallery-item:first-child{grid-column:1/-1;grid-row:auto;aspect-ratio:1.75}.gallery-item-overlay{padding:12px;font-size:10px}.topics-grid{grid-template-columns:1fr;gap:0}.topic-card{padding-block:16px}.about-grid{grid-template-columns:1fr;gap:28px}.about-lead{font-size:25px}.about-card{padding:24px}.contact-grid{grid-template-columns:1fr;gap:30px}.contact-quote{margin-left:0;font-size:24px}.contact-motto{text-align:left;margin-top:12px}.contact-channels{gap:12px}.footer-top{align-items:start;flex-direction:column;gap:20px}.footer-nav{justify-content:flex-start;gap:10px 20px}.footer-nav a{padding-block:5px}.site-dialog{padding:18px;max-height:85dvh}.search-field{padding-inline:10px}.search-field input{font-size:16px}.reader-auth-link{font-size:11px!important;padding:6px!important}footer{padding-bottom:68px}}
@media(max-width:370px){.container{padding-inline:16px}.brand-name small{display:none}.brand-mark{font-size:30px}.nav-logo{gap:8px}.hero-title{font-size:33px}.hero-actions{gap:16px}.tool-featured{display:flex}.tool-featured .tool-action{padding-top:18px;align-self:start}.nav-right .icon-button{min-width:34px}.hero-latest>svg{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}