:root{--cream: #FAF6F0;--warm: #F1ECE3;--warm-line: #E7DFD2;--navy: #293857;--navy-dark: #1A2440;--navy-light: #5C7BB0;--yellow: #F5C518;--yellow-soft: #FCE38A;--yellow-deep: #D4A50C;--ink: #1A1612;--ink-soft: #4A4036;--ink-mute: #8A7E74;--max: 800px;--wide: 1180px;--font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif}*{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--font);line-height:1.72;letter-spacing:0}h1,h2,h3,h4{font-weight:600}a{color:var(--navy);text-decoration:none;transition:color .15s}a:hover{color:var(--yellow-deep)}img{max-width:100%;height:auto}main{min-height:60vh}.container{max-width:var(--max);margin:0 auto;padding:0 22px}.wide{max-width:var(--wide)}.muted{color:var(--ink-mute)}.site-header{border-bottom:1px solid var(--warm-line);background:var(--cream);position:sticky;top:0;z-index:10}.header-inner{max-width:var(--wide);margin:0 auto;padding:16px 22px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:700;font-size:1.15rem;color:var(--ink);letter-spacing:.02em}.brand:hover{color:var(--navy)}.site-header nav{display:flex;gap:26px;flex-wrap:nowrap}.site-header nav a{color:var(--ink-soft);font-size:.95rem;white-space:nowrap}.site-header nav a:hover{color:var(--navy)}.brand{white-space:nowrap}.ai-linzi-link{position:relative}.ai-linzi-tooltip{position:absolute;top:calc(100% + 14px);right:0;width:280px;padding:12px 14px;background:var(--ink);color:#fff;font-size:.8rem;line-height:1.55;font-weight:400;border-radius:8px;box-shadow:0 8px 24px #00000026;opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity .18s,transform .18s,visibility .18s;pointer-events:none;z-index:100;white-space:normal}.ai-linzi-tooltip:before{content:"";position:absolute;top:-6px;right:22px;width:12px;height:12px;background:var(--ink);transform:rotate(45deg)}.ai-linzi-link:hover .ai-linzi-tooltip,.ai-linzi-link:focus-visible .ai-linzi-tooltip{opacity:1;visibility:visible;transform:translateY(0)}.hero{padding:84px 22px 56px;max-width:760px}.hero .kicker{color:var(--navy-light);font-weight:600;letter-spacing:.08em;font-size:.82rem;text-transform:none;margin:0 0 18px}.hero h1{font-size:clamp(2.1rem,5.5vw,3.3rem);line-height:1.18;margin:0 0 24px;letter-spacing:-.01em;color:var(--ink)}.hero .lede{font-size:1.16rem;color:var(--ink-soft);max-width:600px;margin:0 0 34px}.links{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-block;background:var(--navy);color:#fff;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.96rem}.btn:hover{background:var(--navy-dark);color:#fff}.btn.ghost{background:transparent;color:var(--navy);border:1.5px solid var(--warm-line)}.btn.ghost:hover{border-color:var(--navy);color:var(--navy)}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:30px 0 14px;border-top:1px solid var(--warm-line);padding-top:34px}.section-head h2{font-size:1.25rem;margin:0}.section-head a{font-size:.9rem;color:var(--ink-mute)}.section-head a:hover{color:var(--navy)}.post-list{list-style:none;margin:0;padding:0}.post-list li{border-bottom:1px solid var(--warm-line)}.post-list li a{display:flex;gap:18px;align-items:baseline;padding:15px 4px;color:var(--ink)}.post-list li a:hover{color:var(--navy)}.post-list li a:hover .t{text-decoration:underline;text-decoration-color:var(--yellow);text-underline-offset:4px}.post-list .d{color:var(--ink-mute);font-variant-numeric:tabular-nums;font-size:.9rem;flex:0 0 auto;min-width:64px}.post-list .t{font-weight:500}.page-title{font-size:2.2rem;margin:56px 0 6px}.year-block{margin-top:40px}.year-block .year{font-size:1rem;color:var(--navy-light);font-weight:700;letter-spacing:.05em;margin:0 0 6px;padding-bottom:8px}.post{padding:48px 22px 80px}.post .back{font-size:.9rem;color:var(--ink-mute)}.post h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.3;margin:18px 0 10px}.post .meta{color:var(--ink-mute);font-size:.92rem;margin:0 0 36px;padding-bottom:22px;border-bottom:1px solid var(--warm-line)}.prose{font-size:1.08rem}.prose p{margin:0 0 1.3em}.prose img{display:block;margin:28px auto;border-radius:8px;box-shadow:0 1px 3px #1a161214}.prose h1,.prose h2,.prose h3{line-height:1.4;margin:1.6em 0 .6em;color:var(--ink)}.prose h2{font-size:1.4rem}.prose h3{font-size:1.18rem}.prose strong{color:var(--ink);font-weight:700}.prose a{text-decoration:underline;text-decoration-color:var(--yellow);text-underline-offset:3px}.prose blockquote{margin:1.4em 0;padding:6px 20px;border-left:3px solid var(--yellow);color:var(--ink-soft);background:var(--warm);border-radius:0 6px 6px 0}.prose ul,.prose ol{padding-left:1.4em}.prose hr{border:none;border-top:1px solid var(--warm-line);margin:2.4em 0}.about{padding:56px 22px 80px}.about h1{font-size:2.2rem;margin:0 0 24px}.about p{font-size:1.08rem;color:var(--ink-soft);margin:0 0 1.2em}.site-footer{border-top:1px solid var(--warm-line);margin-top:70px;padding:30px 22px}.footer-inner{max-width:var(--wide);margin:0 auto;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;color:var(--ink-mute);font-size:.82rem}.footer-inner a{color:var(--ink-mute)}.footer-inner a:hover{color:var(--navy)}.beian{display:inline-flex;align-items:center;gap:.35em;white-space:nowrap}@media(max-width:640px){.hero{padding:56px 22px 40px}.post-list li a{gap:12px}}.hero-photo{display:grid;grid-template-columns:1fr 340px;gap:50px;align-items:center;padding:66px 22px 48px}.hero-photo .hero-text{max-width:560px}.hero-photo .kicker{color:var(--navy-light);font-weight:600;letter-spacing:.06em;font-size:.82rem;margin:0 0 16px}.hero-photo h1{font-size:clamp(2rem,4.6vw,3.1rem);line-height:1.18;margin:0 0 22px;letter-spacing:-.01em}.hero-photo .lede{font-size:1.12rem;color:var(--ink-soft);margin:0 0 30px}.hero-img img{width:100%;border-radius:16px;box-shadow:0 14px 44px #29385733;display:block}@media(max-width:820px){.hero-photo{grid-template-columns:1fr;gap:28px;padding-top:48px}.hero-img{max-width:280px}}.free-resource{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;background:var(--navy);color:#fff;border-radius:18px;padding:36px 40px;margin:16px 0 8px}.free-resource h2{margin:8px 0 12px;font-size:1.55rem;color:#fff}.free-resource p{margin:0 0 10px;color:#d7deea;font-size:1.02rem}.fr-tag{display:inline-block;background:var(--yellow);color:#000;font-weight:800;font-size:.78rem;padding:5px 14px;border-radius:999px;margin:0!important;letter-spacing:.02em}.fr-cta{color:var(--yellow)!important;font-weight:700}.fr-qr{text-align:center;background:#fff;padding:14px 14px 10px;border-radius:14px}.fr-qr img{width:150px;height:150px;display:block}.fr-qr span{display:block;margin-top:8px;color:var(--ink-soft);font-size:.82rem}@media(max-width:720px){.free-resource{grid-template-columns:1fr;text-align:center;padding:30px 24px}.fr-qr{justify-self:center}}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid var(--warm-line);border-radius:14px;background:#fff;transition:transform .15s,box-shadow .15s,border-color .15s}.card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #2938571a;border-color:#d9cfbf}.card>a{display:block;padding:22px;color:var(--ink);height:100%}.card-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.76rem;color:var(--ink-mute);margin-bottom:11px}.card-meta .cat{color:var(--navy);font-weight:700;background:var(--warm);padding:2px 9px;border-radius:6px}.card-title{font-size:1.1rem;line-height:1.42;margin:0 0 10px;color:var(--ink)}.card:hover .card-title{color:var(--navy)}.card-excerpt{font-size:.9rem;color:var(--ink-soft);line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.card-grid{grid-template-columns:1fr}}.archive-list{list-style:none;margin:0;padding:0}.archive-list li{border-bottom:1px solid var(--warm-line)}.archive-list li a{display:flex;gap:14px;align-items:baseline;padding:13px 4px;color:var(--ink)}.archive-list li a:hover .t{color:var(--navy);text-decoration:underline;text-decoration-color:var(--yellow);text-underline-offset:4px}.archive-list .d{color:var(--ink-mute);font-variant-numeric:tabular-nums;font-size:.85rem;flex:0 0 auto;min-width:46px}.archive-list .cat-pill{flex:0 0 auto;font-size:.72rem;color:var(--navy);background:var(--warm);padding:1px 8px;border-radius:6px;align-self:center}.archive-list .t{font-weight:500;flex:1}.archive-list .rt{flex:0 0 auto;color:var(--ink-mute);font-size:.8rem}@media(max-width:600px){.archive-list .cat-pill,.archive-list .rt{display:none}}.footer-inner{max-width:var(--wide);margin:0 auto;display:flex;flex-direction:column;gap:18px}.footer-connect{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center}.footer-connect .fc-title{font-weight:700;color:var(--ink);font-size:.9rem}.footer-connect ul{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;margin:0;padding:0}.footer-connect li{font-size:.88rem;color:var(--ink-soft)}.footer-connect li b{color:var(--ink-mute);font-weight:600;margin-right:6px;font-size:.82rem}.footer-legal{display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center;color:var(--ink-mute);font-size:.8rem;padding-top:16px;border-top:1px solid var(--warm-line)}.footer-legal a{color:var(--ink-mute)}.footer-legal a:hover{color:var(--navy)}.page-sub{margin:4px 0 22px}.archive-toolbar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin:18px 0 14px}.search-input{flex:1 1 230px;min-width:190px;padding:10px 16px;border:1px solid var(--warm-line);border-radius:999px;background:#fff;font-size:.95rem;font-family:inherit;color:var(--ink)}.search-input:focus{outline:none;border-color:var(--navy-light);box-shadow:0 0 0 3px #5c7bb026}.cat-filters{display:flex;flex-wrap:wrap;gap:8px}.cat-btn{border:1px solid var(--warm-line);background:#fff;color:var(--ink-soft);padding:7px 15px;border-radius:999px;font-size:.88rem;font-family:inherit;cursor:pointer;transition:all .15s}.cat-btn:hover{border-color:var(--navy-light);color:var(--navy)}.cat-btn.active{background:var(--navy);border-color:var(--navy);color:#fff}.archive-count{color:var(--ink-mute);font-size:.88rem;margin:0 0 18px}.archive-count b{color:var(--navy)}.yr{margin-bottom:6px}.yr-head{width:100%;display:flex;align-items:center;gap:10px;background:none;border:none;border-bottom:1px solid var(--warm-line);padding:12px 2px;cursor:pointer;font-family:inherit;color:var(--ink);text-align:left}.yr-head:hover{color:var(--navy)}.yr-caret{color:var(--ink-mute);font-size:.78rem;transition:transform .2s}.yr.collapsed .yr-caret{transform:rotate(-90deg)}.yr-name{font-size:1.05rem;font-weight:700}.yr-count{color:var(--ink-mute);font-size:.82rem;margin-left:auto}.yr-count b{color:var(--navy)}.yr-list{list-style:none;margin:0;padding:0}.yr.collapsed .yr-list{display:none}.yr-list li{border-bottom:1px solid var(--warm-line)}.yr-list li a{display:flex;gap:14px;align-items:baseline;padding:12px 4px;color:var(--ink)}.yr-list li a:hover .t{color:var(--navy);text-decoration:underline;text-decoration-color:var(--yellow);text-underline-offset:4px}.yr-list .d{color:var(--ink-mute);font-variant-numeric:tabular-nums;font-size:.85rem;flex:0 0 auto;min-width:46px}.yr-list .t{font-weight:500;flex:1}.yr-list .rt{flex:0 0 auto;color:var(--ink-mute);font-size:.8rem;white-space:nowrap}.no-result{color:var(--ink-mute);padding:30px 0;text-align:center}.cat-pill{flex:0 0 auto;font-size:.72rem;color:var(--navy);background:var(--warm);padding:2px 9px;border-radius:6px;align-self:center;font-weight:600}.post .meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}@media(max-width:600px){.yr-list .cat-pill,.yr-list .rt{display:none}.archive-toolbar{flex-direction:column;align-items:stretch;gap:10px}.search-input{flex:0 0 auto;width:100%;padding:9px 16px;font-size:.92rem}}.about-hero{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:center;padding:66px 22px 36px}.about-hero .ah-photo img{width:100%;border-radius:16px;box-shadow:0 14px 44px #2938572e;display:block}.about-hero h1{font-size:clamp(2rem,4.6vw,3.1rem);line-height:1.18;margin:0 0 18px}.about-hero .lede{font-size:1.18rem;color:var(--ink-soft);margin:0 0 22px}.ident{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}.ident li{color:var(--ink-soft);font-size:.96rem;position:relative;padding-left:16px}.ident li:before{content:"·";color:var(--yellow-deep);font-weight:700;position:absolute;left:4px}.about-story{padding:40px 22px;max-width:var(--max)}.about-story h2{font-size:1.5rem;margin:0 0 22px;border-top:1px solid var(--warm-line);padding-top:38px}.about-story p{font-size:1.06rem;color:var(--ink-soft);margin:0 0 1.2em}.about-story strong{color:var(--ink)}.timeline{padding:30px 22px;max-width:var(--max)}.timeline h2{font-size:1.5rem;margin:0 0 28px;border-top:1px solid var(--warm-line);padding-top:38px}.tl{list-style:none;padding:0;margin:0;position:relative}.tl:before{content:"";position:absolute;left:80px;top:8px;bottom:8px;border-left:2px solid var(--warm-line)}.tl li{position:relative;padding:0 0 24px 110px}.tl-year{position:absolute;left:0;top:2px;width:70px;text-align:right;color:var(--navy-light);font-weight:700;font-size:.9rem;font-variant-numeric:tabular-nums}.tl li:before{content:"";position:absolute;left:75px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--yellow);border:2px solid var(--cream);box-shadow:0 0 0 2px var(--navy-light)}.tl-body h3{font-size:1.05rem;margin:0 0 4px;color:var(--ink)}.tl-body p{color:var(--ink-soft);font-size:.96rem;margin:0}.books{padding:30px 22px}.books h2{font-size:1.5rem;margin:0 0 24px;border-top:1px solid var(--warm-line);padding-top:38px;max-width:var(--max)}.book-list{display:grid;grid-template-columns:1fr 1fr;gap:28px}.book{display:flex;gap:22px;padding:22px;border:1px solid var(--warm-line);border-radius:14px;background:#fff;color:var(--ink);transition:transform .15s,box-shadow .15s}.book:hover{transform:translateY(-3px);box-shadow:0 10px 30px #2938571a;color:var(--ink)}.book img{width:120px;height:auto;border-radius:6px;box-shadow:0 4px 14px #0000002e;flex:0 0 auto;align-self:flex-start}.book h3{margin:0 0 4px;font-size:1.1rem}.book p{margin:0 0 6px;font-size:.92rem;color:var(--ink-soft)}.book .muted{font-size:.82rem}.cta-block{padding:40px 22px 60px;max-width:var(--max);text-align:center}.cta-block h2{font-size:1.5rem;margin:0 0 8px;border-top:1px solid var(--warm-line);padding-top:38px}.cta-block .links{justify-content:center;margin-top:18px}@media(max-width:820px){.about-hero{grid-template-columns:1fr;gap:28px;padding:44px 22px 24px;text-align:left}.about-hero .ah-photo{max-width:240px}.ident,.book-list{grid-template-columns:1fr}.book{padding:18px;gap:16px}.book img{width:90px}}@media(max-width:600px){.tl:before{left:56px}.tl li{padding-left:80px}.tl-year{width:50px;font-size:.82rem}.tl li:before{left:51px}.site-header nav{gap:14px}.site-header nav a{font-size:.82rem}.header-inner{padding:12px 16px;gap:10px;overflow-x:auto;-webkit-overflow-scrolling:touch}.header-inner::-webkit-scrollbar{display:none}.brand{font-size:.92rem}.page-title{font-size:clamp(1.55rem,6.5vw,2.2rem);margin:36px 0 4px}.page-sub{font-size:.92rem}.hero-photo .hero-text h1{font-size:clamp(1.7rem,7vw,2.6rem)!important;line-height:1.22}.hero-photo .hero-text .lede{font-size:1rem}.about-hero h1{font-size:clamp(1.7rem,6.5vw,2.4rem)}.about-hero .lede{font-size:1rem}.about-story h2,.timeline h2,.books h2,.cta-block h2{font-size:1.35rem}}@media(max-width:420px){.brand{display:none}.site-header nav{gap:12px}.site-header nav a{font-size:.8rem}}.quote-block{max-width:680px;margin:14px auto 4px;padding:18px 24px;border-left:3px solid var(--yellow);background:var(--warm);border-radius:4px 10px 10px 4px;font-size:.98rem;font-style:normal;color:var(--ink-soft);line-height:1.72}.quote-block .quote-author{display:block;margin-top:8px;font-size:.85rem;color:var(--ink-mute)}.products-section{display:grid;grid-template-columns:repeat(2,1fr);align-items:stretch;gap:22px;max-width:var(--wide);margin:32px auto 12px;padding:0 22px}@media(max-width:720px){.products-section{grid-template-columns:1fr}}.product-card{background:#fff;border:1px solid var(--warm-line);border-radius:14px;padding:30px 32px;display:flex;flex-direction:column;position:relative;transition:border-color .18s,box-shadow .18s}.product-card:hover{border-color:var(--navy-light);box-shadow:0 4px 18px #2938570f}.product-card.is-featured{background:var(--navy);border-color:var(--navy);color:#fff}.product-card.is-featured:hover{border-color:var(--yellow);box-shadow:0 8px 28px #2938572e}.pc-badge{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.04em;padding:3px 10px;border-radius:999px;background:var(--warm);color:var(--navy);margin-bottom:12px}.product-card.is-featured .pc-badge{background:var(--yellow);color:#000}.pc-icon{margin-right:8px}.pc-name{margin:0 0 12px;font-size:1.18rem;font-weight:700;color:var(--ink);line-height:1.35}.product-card.is-featured .pc-name{color:#fff}.pc-price{font-size:1.65rem;font-weight:700;color:var(--navy);margin-bottom:12px;letter-spacing:-.01em;line-height:1.2}.product-card.is-featured .pc-price{color:var(--yellow)}.pc-unit{font-size:.82rem;font-weight:400;color:var(--ink-mute);margin-left:4px}.product-card.is-featured .pc-unit{color:#d7deea}.pc-desc{margin:0 0 18px;color:var(--ink-soft);line-height:1.72;font-size:.92rem}.product-card.is-featured .pc-desc{color:#e6ebf5}.product-card.is-featured .pc-desc strong{color:var(--yellow);font-weight:600}.pc-features{list-style:none;padding:0;margin:0 0 16px}.pc-features li{display:flex;gap:10px;align-items:flex-start;padding:5px 0;font-size:.9rem;color:var(--ink-soft);line-height:1.62}.product-card.is-featured .pc-features li{color:#e6ebf5}.product-card.is-featured .pc-features li strong{color:#fff;font-weight:600}.pc-check{flex:0 0 auto;width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--yellow);color:#000;font-size:.66rem;font-weight:800;margin-top:3px}.product-card.is-featured .pc-check{background:var(--yellow);color:#000}.pc-suit{font-size:.82rem;color:var(--ink-mute);background:var(--warm);border-radius:8px;padding:10px 14px;margin:4px 0 16px;line-height:1.6}.pc-suit b{color:var(--navy);margin-right:4px;font-weight:700}.product-card.is-featured .pc-suit{background:#ffffff14;color:#d7deea}.product-card.is-featured .pc-suit b{color:var(--yellow)}.pc-cta{margin-top:auto;width:100%;text-align:center;padding:11px 22px;font-size:.92rem}.product-card.is-featured .pc-cta{background:var(--yellow);color:#000;border-color:var(--yellow);font-weight:700}.product-card.is-featured .pc-cta:hover{background:#fff;color:var(--navy);border-color:#fff}.compare-section{max-width:800px;margin:60px auto 56px;padding:0 22px}.compare-section h2{text-align:center;margin:0 0 22px;font-size:1.5rem;font-weight:700}.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.compare-table{width:100%;border-collapse:collapse;font-size:.88rem;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 1px 8px #2938570a}.compare-table th,.compare-table td{padding:12px 10px;text-align:center;border-bottom:1px solid var(--warm-line)}.compare-table th{background:var(--warm);color:var(--navy);font-weight:700;font-size:.85rem}.compare-table th span{display:block;font-weight:400;font-size:.74rem;color:var(--ink-mute);margin-top:2px}.compare-table th.hl{background:var(--navy);color:#fff}.compare-table th.hl span{color:#d7deea}.compare-table th.hl-y{background:var(--yellow);color:#000}.compare-table th.hl-y span{color:#000;opacity:.72}.compare-table td:first-child,.compare-table th:first-child{text-align:left;color:var(--ink-soft);font-weight:500}.compare-table td.hl{background:#2938570d;color:var(--navy)}.compare-table td.hl b{font-weight:700}.compare-table td.hl-y{background:#f5c51821;color:var(--ink)}.compare-table td.hl-y b{font-weight:700}.compare-table tr.last td{border-bottom:none}@media(max-width:600px){.quote-block{padding:16px 18px;font-size:.92rem;margin:10px 0 4px}.products-section{gap:18px;margin-top:24px;padding:0 16px}.product-card{padding:24px 22px;border-radius:12px}.pc-name{font-size:1.08rem}.pc-price{font-size:1.5rem}.pc-desc{font-size:.9rem}.pc-features li{font-size:.88rem}.compare-section{padding:0 14px;margin-top:46px}.compare-table{font-size:.78rem}.compare-table th,.compare-table td{padding:9px 6px}.compare-table th{font-size:.76rem}.compare-section h2{font-size:1.25rem}}