:root{--bg:#f7f0e4;--paper:#fcf8ef;--ink:#17110d;--muted:#645a52;--line:#dfd2bf;--line-strong:#b89a72;--accent:#8f6b33;--accent-2:#3a4f66;--dark:#17120d;--shadow:0 22px 60px rgba(38,26,12,.10);--radius:26px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#efe5d5 0,#f8f3ea 120px,var(--bg) 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}button,input,select,textarea{font:inherit}textarea,select,input{outline:none}.container{width:min(1180px,calc(100% - 44px));margin:auto}.eyebrow{display:inline-flex;color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}.topbar{position:sticky;top:0;z-index:80;background:rgba(252,248,239,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{height:82px;display:grid;grid-template-columns:320px 1fr 240px 0;gap:18px;align-items:center}.brand{display:flex;align-items:center;gap:12px}.brand img{width:44px;height:44px;border-radius:14px;background:#fff;padding:4px;border:1px solid var(--line)}.brand strong{display:block;font-size:17px;line-height:1.2}.brand em{display:block;color:var(--muted);font-size:11px;font-style:normal;letter-spacing:.08em;text-transform:uppercase}.nav{display:flex;justify-content:center;gap:16px}.nav a{font-size:14px;font-weight:800;color:#4f453d}.nav a:hover{color:var(--accent)}.nav-actions{display:flex;justify-content:flex-end;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:999px;border:1px solid transparent;padding:12px 18px;font-weight:900;cursor:pointer;transition:.2s ease;min-height:46px}.btn:hover{transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,#1f1814,#6d5329);color:#fff}.btn.outline{border-color:var(--line-strong);color:var(--accent);background:#fff}.btn.dark{background:#221914;color:#fff}.btn.gold{background:#f4ead7;border-color:var(--line-strong);color:#6e542c}.menu-toggle{display:none;border:0;background:transparent;flex-direction:column;gap:5px;justify-self:end}.menu-toggle span{width:24px;height:2px;background:var(--ink);border-radius:999px}.section{padding:82px 0}.section-head{max-width:960px;margin-bottom:28px}.split-head{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start;max-width:none}.section h2,.contact-panel h2,.download-card h2,.verify-card h2,.support-copy h2{font-family:Georgia,"Times New Roman",serif;font-size:clamp(32px,3.3vw,46px);line-height:1.12;letter-spacing:-.03em;margin:10px 0 12px}.section-head p,.support-copy p,.contact-panel p,.download-card p,.verify-card p{margin:0;color:var(--muted);font-size:16px;line-height:1.86}.editorial-hero{display:grid;grid-template-columns:1fr .92fr;gap:44px;align-items:center;padding:78px 0 34px}.hero-copy h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(38px,4.8vw,68px);line-height:1.02;letter-spacing:-.045em;margin:14px 0 16px;max-width:11em}.hero-copy p{font-size:17px;color:#5b5149;margin:0;max-width:60ch}.hero-keywords{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.hero-keywords a{border:1px solid var(--line-strong);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:800;color:var(--accent);background:rgba(255,255,255,.65)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.paper-cover{border:1px solid var(--line);background:linear-gradient(180deg,var(--paper),#efe3cf);box-shadow:var(--shadow);border-radius:34px;padding:22px;display:grid;grid-template-columns:1fr;gap:18px}.paper-cover-image{border-radius:26px;overflow:hidden;border:1px solid #e4d6c5;background:linear-gradient(135deg,#14110f,#2b221b);min-height:420px;display:grid;place-items:center}.hero-device{width:min(88%,520px);max-height:360px;object-fit:contain;filter:drop-shadow(0 24px 40px rgba(0,0,0,.4))}.paper-cover-meta{display:grid;gap:8px}.paper-cover-meta span{font-size:12px;font-weight:900;letter-spacing:.16em;color:var(--accent)}.paper-cover-meta b{font-size:24px;font-family:Georgia,"Times New Roman",serif}.paper-cover-meta p{margin:0;color:var(--muted)}.quick-deck{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:8px 0 10px}.quick-deck article,.feature-banner,.download-card,.verify-card,.support-form,.contact-panel,.faq-list details,.article-grid article{border:1px solid var(--line);background:rgba(255,255,255,.72);box-shadow:var(--shadow);border-radius:var(--radius)}.quick-deck article{padding:22px}.quick-deck h2,.feature-left h2{font-family:Georgia,"Times New Roman",serif;font-size:28px;line-height:1.18;margin:8px 0 10px}.quick-deck p,.feature-left p{margin:0;color:var(--muted)}.quick-deck span,.feature-grid a b,.article-grid span{color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.feature-banner{padding:24px;display:grid;grid-template-columns:.8fr 1.2fr;gap:18px;align-items:start}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.feature-grid a{padding:16px;border:1px solid var(--line);border-radius:20px;background:#fff;display:grid;gap:6px}.feature-grid a span{font-size:14px;color:var(--muted)}.model-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:18px}.model-strip article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;box-shadow:var(--shadow)}.model-strip b{display:block;font-size:18px;font-family:Georgia,"Times New Roman",serif;margin:6px 0}.model-strip p{margin:0;color:var(--muted);font-size:14px}.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.product-card{display:grid;grid-template-columns:220px 1fr;gap:22px;padding:22px;border:1px solid var(--line);background:rgba(255,255,255,.76);box-shadow:var(--shadow);border-radius:32px;align-items:stretch}.product-card:hover{transform:translateY(-3px)}.product-wide{grid-column:1/-1;grid-template-columns:300px 1fr}.product-media{border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#fff,#f4ecdf);padding:20px;display:grid;place-items:center;min-height:260px}.product-media img{width:100%;height:220px;object-fit:contain}.product-wide .product-media img{height:240px}.product-content{display:flex;flex-direction:column}.product-content span{color:var(--accent);font-size:12px;letter-spacing:.16em;font-weight:900;text-transform:uppercase}.product-content h3{font-family:Georgia,"Times New Roman",serif;font-size:26px;line-height:1.2;margin:8px 0 10px}.product-content p{color:var(--muted);margin:0 0 14px;font-size:15px}.specs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:4px 0 18px}.specs b{border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px;font-size:13px;color:#413931;min-height:52px;display:flex;align-items:center;line-height:1.45}.product-content .btn{margin-top:auto;align-self:flex-start}.buy-guide{margin-top:20px;border:1px solid var(--line-strong);background:linear-gradient(180deg,#fffaf0,#f4ead8);border-radius:32px;padding:26px;display:grid;gap:18px;box-shadow:var(--shadow)}.alt-guide .guide-copy h3{font-size:clamp(28px,2.4vw,38px);max-width:17em}.alt-guide .guide-copy p{margin:0;color:var(--muted)}.guide-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.guide-steps article{padding:16px;border:1px solid var(--line);background:#fff;border-radius:20px;display:flex;flex-direction:column;gap:8px}.guide-steps i{width:36px;height:36px;border-radius:999px;background:#f2e3c8;color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-weight:900}.guide-steps b{font-size:18px}.guide-steps span{font-size:14px;color:var(--muted);line-height:1.7}.buy-guide .btn{justify-self:start}.compare-table{border:1px solid var(--line);border-radius:28px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.compare-row{display:grid;grid-template-columns:1.05fr 1.05fr 1.1fr 1.1fr 1.55fr .7fr;gap:14px;align-items:center;padding:16px 18px;border-bottom:1px solid var(--line)}.compare-row:last-child{border-bottom:0}.compare-row.head{background:#efe1ca;color:var(--accent);font-weight:900}.compare-row span{color:var(--muted)}.compare-row span:first-child{color:var(--ink);font-weight:900}.mini{border:1px solid var(--line-strong);background:#fff6e7;color:var(--accent);border-radius:999px;padding:9px 14px;font-weight:900;cursor:pointer}.dual-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:20px}.download-card,.verify-card{padding:28px}.download-card ul{padding-left:18px;color:var(--muted);margin:14px 0 20px}.verify-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}.verify-points b{border:1px solid var(--line);border-radius:14px;padding:12px;background:#fff;font-size:14px}.support-section{background:linear-gradient(180deg,rgba(199,171,122,.12),rgba(255,255,255,.3));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.support-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:start}.support-tags{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 0}.support-tags span{border:1px solid var(--line-strong);border-radius:999px;padding:8px 12px;background:#fff7e8;color:var(--accent);font-size:13px;font-weight:800}.support-form{padding:22px;display:grid;gap:14px}.support-form label{display:grid;gap:8px;font-weight:800;color:#3f352c}.support-form select,.support-form textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:16px;padding:12px 14px;color:var(--ink)}.form-actions{display:flex;gap:10px;flex-wrap:wrap}.support-form small{color:var(--muted)}.articles .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.article-grid article{padding:22px}.article-grid h3{font-family:Georgia,"Times New Roman",serif;font-size:22px;line-height:1.2;margin:8px 0 10px}.article-grid p{margin:0;color:var(--muted)}.faq-wrap .faq-list{display:grid;gap:14px}.faq-list details{padding:20px 22px}.faq-list summary{cursor:pointer;font-size:20px;font-weight:900;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list p{margin:12px 0 0;color:var(--muted)}.contact-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;padding:26px}.contact-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.qr-preview{border:1px dashed var(--line-strong);background:#fff;border-radius:24px;padding:22px;display:grid;place-items:center;gap:16px}.qr-preview img{max-width:300px;border-radius:22px}.footer{padding:42px 0 86px;border-top:1px solid var(--line)}.footer-grid{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.footer-brand{display:flex;align-items:flex-start;gap:14px;max-width:820px}.footer-brand img{width:48px;height:48px;border-radius:14px;border:1px solid var(--line);background:#fff;padding:4px}.footer strong{display:block;font-size:22px;font-family:Georgia,"Times New Roman",serif;margin-bottom:6px}.footer p{margin:0;color:var(--muted)}.footer-links{display:grid;grid-template-columns:repeat(5,max-content);gap:10px;align-items:center}.footer-links a,.footer-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;font-weight:800;color:#55483e}.footer-btn{cursor:pointer}.contact-modal{position:fixed;inset:0;background:rgba(24,17,12,.55);display:none;align-items:center;justify-content:center;padding:18px;z-index:120}.contact-modal.show{display:flex}.modal-card{width:min(430px,100%);background:#fff;border-radius:28px;padding:28px;position:relative;box-shadow:0 28px 70px rgba(0,0,0,.24)}.modal-close{position:absolute;right:12px;top:12px;border:0;background:transparent;font-size:30px;cursor:pointer;color:#7b6a59}.modal-card h2{font-family:Georgia,"Times New Roman",serif;font-size:32px;line-height:1.1;margin:0 0 10px}.modal-card p{color:var(--muted);margin:0 0 18px}.qr-box img{width:100%;max-width:320px;aspect-ratio:1/1;object-fit:contain;border-radius:22px;margin:auto;border:1px solid var(--line)}.floating-contact{position:fixed;right:18px;bottom:18px;z-index:100;background:#221914;color:#fff;border:0;border-radius:999px;padding:14px 18px;font-weight:900;cursor:pointer;box-shadow:0 16px 34px rgba(0,0,0,.2)}.lock{overflow:hidden}
@media(max-width:1180px){.nav-wrap{grid-template-columns:1fr 44px}.nav,.nav-actions{display:none}.menu-toggle{display:flex}.nav.open{display:flex!important;position:absolute;top:72px;left:12px;right:12px;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow);align-items:flex-start;z-index:999}.nav.open a{font-size:16px}.editorial-hero,.split-head,.dual-grid,.support-grid,.contact-panel,.feature-banner{grid-template-columns:1fr}.quick-deck,.article-grid,.product-grid,.feature-grid{grid-template-columns:1fr 1fr}.model-strip{grid-template-columns:repeat(3,1fr)}.product-card,.product-wide{grid-template-columns:220px 1fr}.product-wide{grid-column:auto}.guide-steps{grid-template-columns:repeat(3,1fr)}.compare-row{grid-template-columns:1fr 1fr}.compare-row.head{display:none}.footer-grid{flex-direction:column}.footer-links{grid-template-columns:repeat(3,max-content)}}
@media(max-width:760px){.container{width:min(100%,calc(100% - 24px))}.nav-wrap{height:72px}.brand strong{font-size:15px}.brand em{display:none}.editorial-hero{padding:42px 0 22px;gap:26px}.hero-copy h1{font-size:33px;line-height:1.1}.hero-copy p,.section-head p,.support-copy p,.contact-panel p,.download-card p,.verify-card p{font-size:15px;line-height:1.78}.hero-actions,.hero-actions .btn,.support-form .btn,.contact-actions .btn,.buy-guide .btn,.product-content .btn{width:100%}.paper-cover{padding:16px;border-radius:24px}.paper-cover-image{min-height:300px;border-radius:20px}.hero-device{max-height:220px}.quick-deck,.feature-grid,.model-strip,.product-grid,.articles .article-grid{grid-template-columns:1fr}.quick-deck article,.article-grid article{padding:18px}.feature-banner,.download-card,.verify-card,.support-form,.contact-panel{padding:18px;border-radius:24px}.product-card,.product-wide{grid-template-columns:1fr;padding:16px;border-radius:24px;gap:16px}.product-media{min-height:220px;border-radius:20px}.product-media img,.product-wide .product-media img{height:190px;max-width:94%;margin:auto}.product-content h3{font-size:22px}.specs{grid-template-columns:1fr}.guide-steps{grid-template-columns:1fr}.buy-guide{padding:18px;border-radius:24px}.compare-table{border-radius:22px}.compare-row{grid-template-columns:1fr;gap:6px;padding:15px}.compare-row span:not(:first-child){border-top:1px solid rgba(0,0,0,.06);padding-top:8px}.verify-points{grid-template-columns:1fr}.support-tags{gap:8px}.faq-list summary{font-size:18px}.contact-panel{margin-bottom:56px}.qr-preview img{max-width:280px}.footer{padding:32px 0 86px}.footer-brand{flex-direction:column}.footer strong{font-size:19px}.footer p{font-size:13px;line-height:1.7;word-break:break-word}.footer-links{grid-template-columns:1fr 1fr;gap:8px;width:100%}.footer-links a,.footer-btn{text-align:center;padding:9px 10px}.floating-contact{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));width:calc(100% - 24px);justify-content:center}.modal-card{width:min(390px,100%);padding:22px 16px}.modal-card h2{font-size:26px}}

/* Contact modal click fix */
.contact-modal.open{display:flex}
.contact-modal.show{display:flex}
.modal-close{line-height:1}
.nav.open{display:flex!important}