:root{--bg:#111418;--surface:#1b2026;--surface2:#232a31;--text:#f4f1ea;--muted:#b9b7af;--accent:#e4a24b;--line:#3b4145;--hero:#171c23;--button:#111418;font-family:"Noto Sans CJK SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-size:16px;line-height:1.75}img{max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.wrap{width:min(1200px,calc(100% - 64px));margin:auto}.skip{position:absolute;left:-9999px;background:var(--accent);color:var(--button);padding:8px;z-index:99}.skip:focus{left:8px;top:8px}.header{height:80px;border-bottom:1px solid var(--line);background:#151a1f;position:relative;z-index:10}.navline{height:100%;display:flex;align-items:center;gap:30px}.logo{display:flex;width:224px;height:56px;align-items:center;flex:none;background:#f4f1ea;padding:7px 12px;border-radius:3px}.logo img{width:100%;max-height:100%;object-fit:contain}.header nav{display:flex;align-items:center;gap:26px;margin-left:auto}.header nav a{font-size:14px;color:#d1d0ca;white-space:nowrap}.header nav a:hover,.header nav .current{color:var(--accent)}.nav-register{color:var(--accent);font-weight:700;font-size:14px;border-left:1px solid var(--line);padding-left:24px;white-space:nowrap}.nav-toggle{display:none}.eyebrow{display:block;color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase}.hero{background:var(--hero);min-height:660px;display:flex;align-items:center;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding-block:68px}.hero h1{font-size:clamp(42px,4.2vw,64px);line-height:1.19;letter-spacing:-.04em;margin:22px 0}.hero-copy>p{max-width:530px;color:#d3d2ce}.hero-note{font-size:13px;margin-top:30px}.hero-note strong{color:var(--accent)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button,.button-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 24px;border:1px solid var(--accent);font-weight:700;font-size:14px}.button{background:var(--accent);color:var(--button)}.button-ghost{color:var(--accent)}.button:hover{background:#f3ba70}.button-ghost:hover{background:#2a251f}.route-diagram{border:1px solid #56606a;background:#202730;padding:28px;box-shadow:16px 16px 0 #11161b;transform:rotate(-1deg)}.diagram-top,.diagram-foot{font:700 11px/1.5 ui-monospace,monospace;letter-spacing:.08em;color:var(--accent)}.diagram-top{border-bottom:1px solid #57606a;padding-bottom:24px;display:flex;justify-content:space-between}.diagram-row{display:grid;grid-template-columns:72px 1fr;gap:4px 18px;padding:24px 0;border-bottom:1px solid #57606a;position:relative}.diagram-row:before{content:"";position:absolute;left:82px;top:0;bottom:0;border-left:1px solid #57606a}.diagram-row b{font-size:18px}.diagram-row span{color:var(--accent);font:700 13px ui-monospace,monospace}.diagram-row em{grid-column:2;font-style:normal;color:#c5c9cb;font-size:13px}.diagram-foot{padding-top:24px;color:#b2babd}.section{padding:82px 0}.section-alt{background:#181d22}.section-head{margin-bottom:34px}.section-head h2{font-size:clamp(30px,3vw,42px);line-height:1.3;letter-spacing:-.03em;margin:10px 0}.section-head p{color:var(--muted);margin:0}.path-list{border-top:1px solid var(--line)}.path-list a{display:grid;grid-template-columns:150px 1fr 210px;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:27px 10px;transition:background .2s,padding .2s}.path-list a:hover{background:var(--surface2);padding-left:20px}.path-list span,.path-list em{font-size:14px;color:var(--accent);font-style:normal}.path-list strong{font-size:24px}.product-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.product{background:var(--surface);border:1px solid var(--line);padding:25px;scroll-margin-top:28px}.product[hidden],.help-entry[hidden]{display:none}.product:target{outline:2px solid var(--accent)}.product-head{display:flex;justify-content:space-between;gap:16px}.product-head h3{font-size:23px;margin:7px 0 0}.product-head p{color:var(--muted);font-size:14px;margin:4px 0 18px}.product-index{color:#69727a;font:700 34px ui-monospace,monospace}.periods{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.period{padding:15px 10px}.period+.period{border-left:1px solid var(--line)}.period span{display:block;font-size:13px;color:var(--muted)}.period strong{display:block;font-size:25px;line-height:1.4;color:var(--text)}.period del{display:block;color:#aba9a2;font-size:13px}.period.unavailable strong{font-size:16px;color:var(--muted);padding-top:9px}.product-tail{display:flex;justify-content:space-between;gap:10px;align-items:center;padding-top:18px;font-size:13px}.product-tail span{color:var(--muted)}.product-tail a,.section-more a,.text-action,.protocol-grid a{color:var(--accent);font-weight:700}.section-more{text-align:right;margin:28px 0 0}.protocol-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.protocol-grid>div:first-child>p{color:var(--muted);max-width:570px}.protocol-lines{border-top:1px solid var(--line)}.protocol-lines p{border-bottom:1px solid var(--line);padding:16px 0;margin:0;display:flex;justify-content:space-between;gap:15px}.protocol-lines span{color:var(--accent)}.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.steps li{padding:23px 22px 18px 0;border-bottom:1px solid var(--line);position:relative}.steps li:not(:last-child):after{content:"→";position:absolute;right:18px;top:26px;color:var(--accent)}.steps b{display:block;color:var(--accent);font:700 25px ui-monospace,monospace}.steps strong{display:block;margin-top:27px;font-size:18px}.steps p{color:var(--muted);font-size:14px}.steps+.text-action{display:inline-block;margin-top:30px}.tutorial-promo{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.tutorial-promo p{color:var(--muted)}.tutorial-promo img{border:8px solid #e8e8e5;box-shadow:20px 20px 0 #2d3238}.reading-list{border-top:1px solid var(--line)}.reading-list a{display:grid;grid-template-columns:180px 1fr 1fr;gap:25px;align-items:center;border-bottom:1px solid var(--line);padding:22px 8px}.reading-list a:hover{background:var(--surface2)}.reading-list span{color:var(--accent);font-size:13px}.reading-list strong{font-size:19px}.reading-list p{font-size:14px;color:var(--muted);margin:0}.faq-home{display:grid;grid-template-columns:1fr 1.3fr;gap:75px}.faq-home .section-head{margin:0}details{border-bottom:1px solid var(--line)}summary{padding:20px 28px 20px 0;cursor:pointer;font-weight:700;position:relative;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:4px;color:var(--accent);font-size:23px;line-height:1}details[open] summary:after{content:"−"}details p{color:var(--muted);margin:0 0 20px}.faq-home .text-action{display:inline-block;margin-top:25px}.final-cta{padding:76px 0;background:#26231f;border-top:1px solid #5e4931}.final-cta h2{font-size:40px;margin:10px 0}.final-cta p{color:var(--muted)}.page{padding-top:36px;padding-bottom:85px;min-height:55vh}.breadcrumb{font-size:13px;color:var(--muted);display:flex;gap:11px;flex-wrap:wrap;margin-bottom:52px}.breadcrumb a:hover{color:var(--accent)}.page h1{font-size:clamp(36px,4vw,55px);line-height:1.23;letter-spacing:-.035em;margin:14px 0}.lead{max-width:750px;color:var(--muted);font-size:18px;margin-bottom:38px}.selection-flow{border-top:1px solid var(--line)}.flow-row{display:grid;grid-template-columns:80px 1fr 1.3fr;gap:25px;align-items:start;border-bottom:1px solid var(--line);padding:32px 0;scroll-margin-top:30px}.flow-number{font:700 24px ui-monospace,monospace;color:var(--accent)}.flow-row h2{margin:0;font-size:23px}.flow-row p{margin:5px 0;color:var(--muted)}.flow-options{display:flex;flex-wrap:wrap;gap:9px}.flow-options a{border:1px solid var(--line);padding:8px 12px;font-size:14px;color:var(--accent)}.flow-options a:hover{background:var(--surface2)}.note-panel{background:#26231f;border-left:3px solid var(--accent);padding:28px 32px;margin-top:50px}.note-panel h2{margin:0 0 8px}.note-panel p{color:#d0c7bb}.filter-bar{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:15px}.filter-bar button,.filter-count button{background:none;border:1px solid var(--line);color:var(--text);padding:8px 16px}.filter-bar button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--button);font-weight:700}.filter-count{color:var(--muted);font-size:13px;margin:18px 0}.filter-count strong{color:var(--text)}.filter-count button{margin-left:14px;padding:3px 9px;font-size:12px}.search-label{display:block;font-weight:700;margin-bottom:8px}#help-search{background:var(--surface);border:1px solid var(--line);color:var(--text);padding:12px 16px;min-width:min(100%,400px)}#clear-search{background:none;color:var(--accent);border:0;margin-left:10px}.help-list{border-top:1px solid var(--line);margin-top:30px}.help-entry{display:grid;grid-template-columns:70px 220px 1fr 120px;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding:21px 8px}.help-entry:hover{background:var(--surface)}.help-entry span,.help-entry em{color:var(--accent);font-style:normal}.help-entry strong{font-size:20px}.help-entry p{color:var(--muted);font-size:14px;margin:0}.faq-full{max-width:850px;margin-bottom:35px}.map-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.map-grid section{border-top:1px solid var(--accent);padding-top:18px}.map-grid h2{font-size:21px}.map-grid a{display:block;color:var(--muted);padding:5px 0}.map-grid a:hover{color:var(--accent)}.article-layout{max-width:840px;margin:auto}.article-header{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:40px}.article-header h1{font-size:clamp(36px,3.7vw,52px)}.article-meta{font-size:13px;color:var(--muted)}.article-body{font-size:17px;line-height:1.8;color:#e5e3dc}.article-body h2{font-size:26px;line-height:1.4;color:var(--text);margin:48px 0 16px;scroll-margin-top:25px}.article-body h3{font-size:20px;color:var(--text);margin:26px 0 10px}.article-body a:not(.image-zoom){color:var(--accent);text-decoration:underline;text-underline-offset:4px}.article-body li{margin-bottom:9px}.article-body figure{margin:28px 0 43px}.article-body figure img{display:block;border:5px solid #e8e8e5;background:#fff}.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px}.article-body .article-preparation{padding:20px 25px;background:var(--surface);border-left:3px solid var(--accent)}.article-body .article-preparation h2{margin:0 0 10px}.article-next{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:25px;margin-top:45px;color:var(--accent)}.not-found{padding-top:90px}.footer{background:#0c0f12;border-top:1px solid var(--line);padding:58px 0 25px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:55px}.footer-grid>div:first-child>img{background:#f4f1ea;padding:7px;border-radius:3px;object-fit:contain}.footer-grid p{color:var(--muted);font-size:14px}.footer h2{font-size:16px;margin:0 0 13px}.footer a,.footer button{display:block;color:#c8c7c2;font-size:14px;margin:7px 0}.footer a:hover,.footer button:hover{color:var(--accent)}.footer button{border:0;background:none;padding:0;text-align:left}.legal{display:flex;gap:24px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:45px;padding-top:18px}.legal a{display:inline-flex;align-items:center;gap:5px;font-size:12px}.legal img{width:17px;height:17px}dialog{background:#20262d;color:var(--text);border:1px solid var(--accent);padding:30px;max-width:min(90vw,420px);box-shadow:0 25px 80px #0009}dialog::backdrop{background:#050608c9}.dialog-close{float:right;border:0;background:none;color:var(--text);font-size:27px;line-height:1}dialog h2{margin:0 0 20px}dialog .contact-wechat img{background:white;padding:10px;width:230px;height:auto}dialog .contact-qq button{background:var(--accent);color:var(--button);border:0;padding:7px 14px}.contact-qq,.contact-wechat{display:none}dialog[data-mode=qq] .contact-qq,dialog[data-mode=wechat] .contact-wechat{display:block}#image-dialog{max-width:min(96vw,1400px);max-height:96vh;overflow:auto;padding:20px}#image-dialog img{display:block;max-height:82vh;width:auto;max-width:100%}#image-dialog p{margin:5px 0;text-align:right;color:var(--accent)}@media(max-width:1024px){.header{height:64px}.logo{width:185px;height:47px}.nav-toggle{display:block;margin-left:auto;background:none;border:1px solid var(--line);color:var(--text);padding:5px 10px}.nav-register{border:0;padding:0}.header nav{display:none;position:absolute;top:64px;left:0;right:0;background:#171c22;padding:15px 32px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.header nav.open{display:flex}.header nav a{padding:8px 0}.hero-grid{gap:30px}.hero h1{font-size:43px}.diagram-row{grid-template-columns:56px 1fr}.diagram-row:before{left:65px}.flow-row{grid-template-columns:60px 1fr}.flow-options{grid-column:2}.help-entry{grid-template-columns:45px 180px 1fr}.help-entry em{display:none}}@media(max-width:768px){.wrap{width:min(100% - 36px,1200px)}.hero{min-height:auto}.hero-grid{display:block;padding-block:62px}.hero h1{font-size:34px}.hero-copy>p{font-size:15px}.route-diagram{margin:46px 8px 8px 0;padding:18px;transform:none;box-shadow:8px 8px 0 #101418}.diagram-top{font-size:9px}.diagram-row{padding:17px 0}.diagram-row b{font-size:15px}.diagram-row em{font-size:12px}.section{padding:46px 0}.section-head h2{font-size:29px}.path-list a{grid-template-columns:1fr auto;gap:3px;padding:17px 0}.path-list span{grid-column:1/-1}.path-list strong{font-size:18px}.path-list em{font-size:12px}.product-list,.protocol-grid,.tutorial-promo,.faq-home,.map-grid,.footer-grid{grid-template-columns:1fr;gap:23px}.product{padding:18px}.product-head h3{font-size:20px}.period{padding:12px 5px}.period strong{font-size:20px}.product-tail{font-size:12px}.steps{grid-template-columns:1fr 1fr}.steps li{padding:16px}.steps li:not(:last-child):after{display:none}.steps strong{margin-top:9px}.reading-list a{grid-template-columns:1fr;gap:3px;padding:17px 0}.reading-list strong{font-size:17px}.faq-home{gap:10px}.final-cta{padding:47px 0}.final-cta h2{font-size:29px}.page{padding-top:24px;padding-bottom:55px}.breadcrumb{margin-bottom:35px}.page h1{font-size:34px}.lead{font-size:16px}.flow-row{grid-template-columns:45px 1fr;gap:10px}.flow-row h2{font-size:18px}.flow-options{gap:6px}.flow-options a{font-size:12px}.help-entry{grid-template-columns:32px 1fr;gap:5px}.help-entry p{grid-column:2}.article-body{font-size:16px}.article-body h2{font-size:23px}.article-body .article-preparation{padding:16px}.footer{padding-top:40px}.footer-grid{gap:30px}.nav-register{font-size:12px}.logo{width:145px;height:41px}.navline{gap:10px}.tutorial-promo img{box-shadow:8px 8px 0 #2d3238}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

:root{--bg:#fff;--surface:#fff;--surface2:#f5f7f8;--text:#24313b;--muted:#4e5b64;--accent:#925818;--line:#dce2e5;--hero:#25313d;--button:#fff;color:var(--text);background:#fff}
body{color:var(--text);background:#fff;line-height:1.72}
.header{background:#fff;border-bottom:1px solid #e6eaed}.logo{background:none;width:235px;padding:0}.header nav a{color:#34424b}.header nav a:hover,.header nav .current,.nav-register{color:#875014}.nav-register{border-color:#dce2e5}.skip{color:#fff;background:#925818}
.nav-toggle{min-height:44px}.nav-register{display:inline-flex;align-items:center;min-height:44px}
.header nav .mobile-nav-register{display:none}
.hero{min-height:500px;background:#25313d}.hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.03fr);gap:62px;padding-block:48px}.hero-copy{color:#fff}.hero-copy h1{font-size:50px;line-height:1.18;letter-spacing:-.035em;margin:0 0 18px;color:#fff}.hero-copy>p{font-size:16px;line-height:1.75;max-width:490px;color:#e3e8eb}.hero-copy .hero-lead{font-size:22px;line-height:1.45;color:#fff;font-weight:650;margin:0 0 15px}.hero .actions{margin-top:27px}.button,.button-ghost,.button-outline{border-radius:7px;min-height:46px;padding:10px 20px}.hero .button{background:#fff;color:#25313d;border-color:#fff}.hero .button:hover{background:#e9edf0}.hero .actions .button:nth-child(2){background:transparent;border-color:#cbd4d9;color:#fff}.hero .actions .button:nth-child(2):hover{background:#354451}.hero .hero-note{font-size:13px;margin-top:18px;color:#e1e5e8}.hero .hero-note strong{color:#fff}.hero-image{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 14px 30px #111e2950}.hero-image img{display:block;width:100%;height:auto;object-fit:contain}
.section{padding:66px 0}.section-alt{background:#f6f8f9}.section-head{margin-bottom:27px}.section-head h2{font-size:32px;color:#22323d;letter-spacing:-.02em;margin:0 0 8px}.section-head p{color:var(--muted);max-width:740px}.section-head a{color:#925818;font-weight:700}.home-products{background:#fff}.device-paths{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0 23px}.device-paths>div{padding-right:22px}.device-paths>div+div{border-left:1px solid var(--line);padding-left:26px}.device-paths h3{margin:0 0 5px;font-size:20px;color:#22323d}.device-paths p{margin:0 0 12px;color:#4e5b64;font-size:14px;line-height:1.65}.device-paths a,.overview-label a,.overview-item em,.home-faq a{color:#925818;font-weight:700;font-style:normal;font-size:14px}.overview{display:grid;grid-template-columns:210px 1fr;gap:25px;margin-top:34px}.overview-label h3{margin:0 0 8px;font-size:21px}.overview-label a{font-size:13px}.overview-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px}.overview-item{display:grid;grid-template-columns:1fr 135px;gap:3px 12px;border-bottom:1px solid var(--line);padding:9px 0}.overview-item strong{font-size:15px}.overview-item span{grid-column:1;font-size:12px;color:#62717b}.overview-item em{grid-column:2;grid-row:1/3;text-align:right;align-self:center;white-space:nowrap;font-size:13px}.overview-item:hover strong{color:#925818}
.home-conditions{background:#f6f8f9}.conditions-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:70px}.condition-list{border-top:1px solid #d7dee2}.condition-list>div{display:grid;grid-template-columns:150px 1fr;gap:25px;align-items:start;padding:15px 0;border-bottom:1px solid #d7dee2}.condition-list strong{color:#263641}.condition-list p{margin:0;color:#4e5b64;font-size:14px}.home-guide{background:#fff}.guide-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:62px;align-items:center}.guide-steps{list-style:none;padding:0;margin:0;counter-reset:steps}.guide-steps li{counter-increment:steps;display:grid;grid-template-columns:36px 1fr;gap:2px 14px;padding:14px 0;border-bottom:1px solid var(--line)}.guide-steps li:first-child{border-top:1px solid var(--line)}.guide-steps li:before{content:counter(steps,decimal-leading-zero);grid-row:1/3;color:#925818;font:700 14px ui-monospace,monospace;padding-top:2px}.guide-steps strong{font-size:17px;color:#263641}.guide-steps span{font-size:14px;color:#53616a}.guide-media img{display:block;width:100%;border:1px solid #e1e5e8;border-radius:7px}.guide-media .button{margin-top:18px;background:#925818;border-color:#925818;color:#fff}.guide-media .button:hover{background:#774512}.home-faq{background:#f6f8f9}.faq-home{gap:65px}.home-faq details{border-color:#d7dee2}.home-faq summary{color:#263641;padding-block:16px}.home-faq details p{color:#4e5b64}.home-contact{background:#fff;border-top:1px solid #e8edef}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:85px}.contact-grid h2{font-size:29px;margin:0 0 10px}.contact-grid>div>p{color:#4e5b64}.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px;align-items:center}.contact-actions .button{background:#925818;border-color:#925818;color:#fff}.button-outline{background:#fff;border:1px solid #925818;color:#925818}.contact-actions>a{font-size:14px;color:#925818}.home-reading h3{font-size:20px;margin:0 0 10px}.home-reading a{display:block;border-top:1px solid var(--line);padding:10px 0}.home-reading strong{display:block;font-size:14px;line-height:1.5;color:#2d3b44}.home-reading a:hover strong{color:#925818}.home-reading span{display:block;font-size:12px;color:#5d6870;margin-top:3px}
.page{color:#24313b}.page h1{color:#24313b;font-size:48px}.breadcrumb{color:#58656e}.lead{color:#4e5b64}.eyebrow{color:#925818}.product{background:#fff;border-color:#dce2e5;border-radius:8px}.product-head h3,.product h3{color:#263641}.product-head p,.product-tail span{color:#53616a}.periods{border-color:#dce2e5}.period+.period{border-color:#dce2e5}.period span,.period del{color:#53616a}.period strong{color:#25313d}.period.unavailable strong{color:#68747c}.product-tail a{color:#925818}.filter-bar button,.filter-count button{color:#25313d;border-color:#dce2e5}.filter-bar button[aria-pressed=true]{background:#925818;border-color:#925818;color:#fff}.note-panel{background:#f7f4ef;border-color:#925818}.note-panel p{color:#4e5b64}.flow-row,.selection-flow,.help-list,.help-entry,.map-grid section,.article-header,.article-next,.faq-full details{border-color:#dce2e5}.flow-row p,.help-entry p,.map-grid a,.faq-full details p,.article-meta{color:#53616a}.flow-options a{border-color:#dce2e5;color:#925818}.article-body{color:#283943}.article-body h2,.article-body h3{color:#22323d}.article-body .article-preparation{background:#f5f7f8;border-color:#925818}.article-body a:not(.image-zoom),.article-next{color:#925818}.article-body figcaption{color:#58656e}.article-body figure img{border-color:#e6eaed}.search-label{color:#25313d}#help-search{background:#fff;color:#25313d;border-color:#c8d0d5}#clear-search{color:#925818}.not-found{color:#25313d}
.footer{background:#f3f5f6;border-top:1px solid #dce2e5;color:#263641}.footer-grid>div:first-child>img{background:none;padding:0}.footer-grid p{color:#53616a}.footer h2{color:#25313d}.footer a,.footer button{color:#3b4a53}.footer a:hover,.footer button:hover{color:#925818}.legal{border-color:#d6dde1}.legal a{color:#4e5b64}dialog{background:#fff;color:#25313d;border-color:#b6c1c7;border-radius:9px}dialog .dialog-close{color:#25313d}dialog .contact-qq button{background:#925818;color:#fff}
@media(max-width:1024px){.header nav{background:#fff;border-color:#e6eaed}.header nav a{color:#34424b}.header nav .mobile-nav-register{display:block;color:#925818;font-weight:700;border-top:1px solid #e6eaed;margin-top:6px;padding-top:12px;min-height:44px}.nav-toggle{color:#25313d;border-color:#dce2e5}.hero-grid{gap:28px}.hero-copy h1{font-size:42px}.conditions-grid,.guide-grid,.contact-grid{gap:35px}}
@media(max-width:768px){.logo{width:145px}.nav-register{color:#925818}.hero-grid{display:flex;flex-direction:column;align-items:stretch;padding-block:38px;gap:25px}.hero-copy h1{font-size:32px;margin-bottom:12px}.hero-copy .hero-lead{font-size:18px;margin-bottom:8px}.hero-copy>p{font-size:14px;margin-top:0}.hero .actions{margin-top:19px;gap:9px}.hero .actions .button{font-size:13px;padding:9px 14px;min-height:44px}.hero .hero-note{margin:11px 0 0;font-size:12px}.hero-image{max-width:520px}.section{padding:38px 0}.section-head{margin-bottom:20px}.section-head h2{font-size:26px}.device-paths{display:block;padding:0}.device-paths>div,.device-paths>div+div{padding:13px 0;border-left:0;border-bottom:1px solid var(--line)}.device-paths>div:last-child{border-bottom:0}.device-paths h3{font-size:18px}.overview{display:block;margin-top:24px}.overview-label{display:flex;justify-content:space-between;align-items:center;gap:12px}.overview-label h3{font-size:18px}.overview-label a{font-size:12px}.overview-list{grid-template-columns:1fr}.overview-item{grid-template-columns:1fr 125px}.overview-item strong{font-size:14px}.conditions-grid,.guide-grid,.contact-grid{display:block}.condition-list{margin-top:18px}.condition-list>div{display:block;padding:13px 0}.condition-list p{margin-top:3px}.guide-media{margin-top:22px}.faq-home{display:block}.faq-home .section-head{margin-bottom:15px}.contact-grid>div+div{margin-top:30px}.contact-grid h2{font-size:25px}.contact-actions .button,.button-outline{font-size:13px;padding:9px 13px;min-height:44px}.page h1{font-size:32px}.footer{padding-top:38px}.footer-grid{display:grid;grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:first-child>img{width:190px}.footer-grid>div{min-width:0}.footer-grid a,.footer-grid button{overflow-wrap:anywhere}}
.mobile-break{display:none}.hero .hero-lead{max-width:500px;text-wrap:balance}.hero-copy>p:not(.hero-lead):not(.hero-note){text-wrap:pretty}
.inner-page>.breadcrumb{margin-bottom:32px}.inner-page h1{margin:0 0 12px}.inner-page>.lead{margin-bottom:34px}.inner-page .note-panel .button{background:#925818;color:#fff;border-color:#925818}
.selection-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:start}.selection-rows{border-top:1px solid var(--line)}.selection-row{display:grid;grid-template-columns:190px 1fr;gap:25px;border-bottom:1px solid var(--line);padding:21px 0;scroll-margin-top:30px}.selection-row h2{font-size:21px;margin:0 0 3px}.selection-row p{margin:0;color:#53616a;font-size:13px}.selection-row p strong{color:#925818}.selection-row>div:last-child{display:flex;gap:7px;flex-wrap:wrap;align-content:start}.selection-row a{font-size:13px;padding:6px 10px;border:1px solid #d5dde1;border-radius:6px;color:#73430e}.selection-row a:hover{background:#f7f4ef}.selection-image{margin:0}.selection-image img{display:block;width:100%;border:1px solid #e4e9ec;border-radius:8px}.selection-image figcaption{font-size:12px;color:#53616a;margin-top:6px}
.pricing-page .product-list{display:block;border-top:1px solid #d8dfe2}.price-list-head,.pricing-page .product{display:grid;grid-template-columns:2.3fr repeat(3,minmax(100px,1fr)) 110px;align-items:center;gap:16px}.price-list-head{padding:9px 18px;background:#f4f6f7;color:#52616b;font-size:13px;font-weight:700}.pricing-page .product{margin:0;padding:16px 18px;background:#fff;border:0;border-bottom:1px solid #d8dfe2;border-radius:0;scroll-margin-top:30px}.pricing-page .product:target{outline:2px solid #925818;outline-offset:-2px;background:#fcfaf6}.pricing-page .product-head h3{font-size:17px;margin:0 0 4px}.pricing-page .product-head p{font-size:12px;margin:0;color:#53616a}.pricing-page .periods{display:contents}.pricing-page .period{padding:0;border:0!important}.pricing-page .period span{display:none}.pricing-page .period strong{font:700 19px/1.35 ui-monospace,"Microsoft YaHei",sans-serif;color:#263641}.pricing-page .period.unavailable strong{font:400 13px/1.35 "Microsoft YaHei",sans-serif;color:#64717a;padding:0}.pricing-page .period del{font-size:12px;line-height:1.3;color:#69747a}.pricing-page .product-tail{padding:0;display:block;text-align:right}.pricing-page .product-tail a{font-size:13px;white-space:nowrap}.price-note{font-size:13px;color:#52616b;margin-top:14px}.pricing-page .filter-bar button{border-radius:6px;min-height:44px}.pricing-page .filter-count button{border-radius:5px}
.pricing-page .product[hidden],.help-page .help-entry[hidden]{display:none}
.help-search-row{display:grid;grid-template-columns:140px 1fr;gap:15px;align-items:center;padding:18px;background:#f5f7f8;border-radius:8px}.help-search-row label{font-weight:700}.help-search-row>div{display:flex;gap:10px}.help-search-row input{flex:1;max-width:520px;min-width:0;min-height:44px;border-radius:6px}.help-search-row button{border:1px solid #cfd8dd;background:#fff;color:#925818;border-radius:6px;padding:0 16px}.help-page #search-count{color:#52616b;font-size:13px;margin:17px 0}.help-page .help-list{margin-top:0}.help-page .help-entry{grid-template-columns:190px 1fr 100px;gap:20px;padding:18px 8px}.help-page .help-entry strong{font-size:17px}.help-page .help-entry p{overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;font-size:13px}.help-page .help-entry em{display:block;font-size:13px;text-align:right}
.help-search-row #help-search{min-width:0;width:100%}.help-search-row #clear-search{margin-left:0;flex:none}
.tutorial-page>.breadcrumb{margin-bottom:25px}.tutorial-header{max-width:840px;margin:auto;padding:0 0 27px;border-bottom:1px solid var(--line)}.tutorial-header h1{font-size:46px;margin:0 0 12px}.tutorial-header .lead{margin:0 0 12px}.tutorial-columns{display:grid;grid-template-columns:230px minmax(0,840px);gap:55px;justify-content:center;padding-top:30px}.tutorial-columns aside{align-self:stretch}.chapter-nav{position:sticky;top:20px;border-top:2px solid #925818;padding:17px 0 25px}.chapter-nav h2{font-size:17px;margin:0 0 12px}.chapter-nav a{display:block;padding:4px 0;color:#52616b;font-size:13px}.chapter-nav a:hover,.chapter-nav a:focus{color:#925818}.tutorial-page .article-body{min-width:0;font-size:17px;line-height:1.8}.tutorial-page .article-body h2{scroll-margin-top:25px;font-size:25px}.tutorial-page .article-body h3{font-size:19px}.mobile-chapters{display:none}.tutorial-page .article-next{margin-top:45px}.tutorial-page .article-body figure img{border:1px solid #e3e8eb;border-radius:6px}
.faq-full{border-top:1px solid var(--line)}.faq-full summary{font-size:17px}.map-grid{gap:40px}.map-grid section{border-color:#d8dfe2}.not-found .button{background:#925818;color:#fff}.not-found .button-ghost{color:#925818}
@media(max-width:1024px){.selection-layout{gap:24px}.selection-row{grid-template-columns:150px 1fr}.tutorial-columns{grid-template-columns:180px minmax(0,1fr);gap:27px}.pricing-page .product,.price-list-head{gap:8px;grid-template-columns:2fr repeat(3,minmax(78px,1fr)) 90px}}
@media(max-width:768px){.mobile-break{display:block}.hero .hero-lead{font-size:18px}.selection-layout{display:block}.selection-row{grid-template-columns:1fr;gap:8px;padding:18px 0}.selection-row>div:last-child{display:flex}.selection-image{margin-top:25px;max-width:420px}.pricing-page .price-list-head{display:none}.pricing-page .product{display:block;border:1px solid #dce2e5;border-radius:8px;margin-bottom:10px;padding:16px}.pricing-page .product-head h3{font-size:18px}.pricing-page .product-head p{font-size:12px;margin-bottom:13px}.pricing-page .periods{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.pricing-page .period{padding:10px 7px}.pricing-page .period+.period{border-left:1px solid var(--line)!important}.pricing-page .period span{display:block;font-size:12px}.pricing-page .period strong{font-size:18px}.pricing-page .product-tail{text-align:left;padding-top:10px}.pricing-page .product-tail a{font-size:13px}.help-search-row{display:block;padding:15px}.help-search-row>div{margin-top:7px}.help-page .help-entry{grid-template-columns:1fr auto;gap:4px 10px;padding:15px 0}.help-page .help-entry strong{font-size:16px}.help-page .help-entry p{grid-column:1/-1;grid-row:2}.help-page .help-entry em{grid-column:2;grid-row:1;font-size:12px}.tutorial-header h1{font-size:32px}.tutorial-columns{display:block;padding-top:12px}.tutorial-columns aside{display:none}.mobile-chapters{display:block;margin:17px 0;border:1px solid #d7dee2;border-radius:7px;padding:0 15px}.mobile-chapters summary{font-size:15px;padding:12px 0}.mobile-chapters .chapter-nav{position:static;border-top:1px solid var(--line);padding:10px 0;display:grid;grid-template-columns:1fr 1fr;gap:0 10px}.mobile-chapters .chapter-nav h2{display:none}.mobile-chapters .chapter-nav a{font-size:12px;padding:5px 0}.tutorial-page .article-body{font-size:16px}.tutorial-page .article-body h2{font-size:23px}.faq-full summary{font-size:15px}}

/* Final approved tutorial typography: 17px / 1.8 */
.article-body p,.article-body li{font-size:17px;line-height:1.8}

/* Supplied brand artwork: complete 4:3 composition, responsive and keyboard zoomable. */
.brand-home-figure{min-width:0;margin:0;display:block;background:transparent;box-shadow:none;overflow:visible}
.brand-home-link{display:block;width:100%;border-radius:8px;overflow:hidden;line-height:0;cursor:zoom-in;text-decoration:none}
.brand-home-link:focus-visible{outline:3px solid currentColor;outline-offset:5px}
.brand-home-link img{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;filter:none;box-shadow:none}
.brand-home-caption{display:flex;justify-content:flex-end;gap:8px;align-items:center;margin:8px 0 0;font-size:12px;line-height:1.6;letter-spacing:0}

.hero .hero-grid{grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:44px;padding-block:42px}
.hero .brand-home-figure{background:transparent;box-shadow:none;border-radius:0}
.hero .brand-home-caption{color:#dae3eb}
@media(max-width:768px){.hero .hero-grid{display:flex;gap:24px;padding-block:34px}.hero .brand-home-figure{max-width:none;width:100%}}

/* 2026-11-01 content cleanup and shared support controls */
.hero-copy h1{font-size:44px;line-height:1.22}.hero-copy>p:not(.hero-note){font-size:16px;line-height:1.72;max-width:520px}.hero .hero-grid{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:42px}.hero .brand-home-link img{aspect-ratio:4/3}.hero .brand-home-caption{color:#e4ebef}
.hero{min-height:0}.hero .brand-home-figure{max-width:540px;justify-self:end}.hero .hero-grid{padding-block:28px}.hero-copy h1{max-width:500px}
.home-summary,.home-start,.home-faq{padding:54px 0}.home-start{background:#f6f8f9}.home-summary .section-head h2,.home-start h2,.home-faq .section-head h2{font-size:29px}.home-summary .device-paths h3{font-size:19px}.home-summary .device-paths p{font-size:15px;line-height:1.7}.start-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:65px;align-items:start}.start-layout h2{margin:0 0 10px}.start-layout p{color:#4e5b64;max-width:510px}.start-layout .button{background:#925818;color:#fff;border-color:#925818;margin-top:10px}.start-steps{list-style:none;padding:0;margin:0;border-top:1px solid #d7dee2;counter-reset:step}.start-steps li{counter-increment:step;display:grid;grid-template-columns:36px 1fr;gap:2px 14px;border-bottom:1px solid #d7dee2;padding:13px 0}.start-steps li:before{content:counter(step,decimal-leading-zero);grid-row:1/3;color:#925818;font:700 14px ui-monospace,monospace}.start-steps strong{color:#263641}.start-steps span{font-size:14px;color:#53616a}.home-faq{background:#fff}
.footer-grid{grid-template-columns:1.45fr 1fr 1.15fr 1fr;gap:36px}.footer-grid section{min-width:0}.footer-grid section:first-child img{background:none;padding:0;width:210px;height:auto}.footer-grid section p{font-size:14px;line-height:1.7;color:#53616a;margin:14px 0 0}.footer-grid a,.footer-grid button{font-size:14px;line-height:1.5;overflow-wrap:anywhere}.footer .legal{gap:14px 24px}.footer .legal a{margin:0}
[data-support-rail]{position:fixed;z-index:30;right:20px;bottom:24px;display:flex;flex-direction:column;gap:12px;align-items:center}[data-support-rail][hidden]{display:none}[data-support-rail] button{width:48px;height:48px;padding:10px;border:0;border-radius:50%;display:grid;place-items:center;box-shadow:0 3px 12px #1b293b38}[data-support-open="qq"]{background:#2374c6;color:#fff}[data-support-open="wechat"]{background:#2c9a55;color:#fff}[data-support-rail] img{display:block;width:27px;height:27px;filter:brightness(0) invert(1)}[data-support-dialog]{width:min(90vw,390px);max-width:390px;padding:26px;border-radius:10px;box-shadow:0 20px 70px #17212d66}[data-support-dialog] h2{font-size:23px;margin:0 0 15px}[data-support-dialog] [hidden]{display:none}[data-support-dialog] .support-qr{display:block;background:#fff;width:230px;height:auto;max-width:100%;margin:8px auto}[data-support-dialog] [data-support-panel="wechat"] p{text-align:center}[data-support-dialog] [data-support-copy]{background:#2374c6;color:#fff;border:0;border-radius:6px;padding:10px 14px;min-height:44px}[data-support-dialog] .support-dialog-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}[data-support-dialog] .support-dialog-actions a{color:#1767af;font-weight:700}[data-support-dialog] [data-support-status]{font-size:13px;color:#925818;min-height:1.5em}[data-support-dialog] .dialog-close{min-width:44px;min-height:44px;display:grid;place-items:center;margin:-10px -10px 0 0}
.pricing-page .product-head h2{font-size:17px;margin:0 0 4px;color:#263641}.pricing-page .product-head p{margin:0}.pricing-page .product-list{margin-top:0}.pricing-page .filter-count{margin:10px 0}.pricing-page .filter-bar{padding-bottom:10px}.pricing-page .lead{margin-bottom:20px}.faq-group{margin:0 0 28px}.faq-group h2{font-size:25px;margin:0 0 8px}.faq-group .faq-full{margin:0}.help-page [data-help-group][hidden]{display:none}.help-group{margin:0 0 28px}.help-group h2{font-size:23px;margin:0 0 10px}.help-filter{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.help-filter button{min-height:44px;padding:8px 13px;border:1px solid #d5dde1;border-radius:6px;background:#fff;color:#34424b}.help-filter button[aria-pressed="true"]{background:#925818;color:#fff;border-color:#925818}.help-page .help-list{border-top:1px solid #dce2e5}.help-page .help-entry p{max-width:690px}
@media(max-width:1024px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:26px 35px}}
@media(max-width:768px){.hero-copy h1{font-size:31px}.hero-copy>p:not(.hero-note){font-size:15px}.hero .hero-grid{display:flex;gap:20px;padding-block:34px}.home-summary,.home-start,.home-faq{padding:34px 0}.home-summary .section-head h2,.home-start h2,.home-faq .section-head h2{font-size:25px}.start-layout{display:block}.start-steps{margin-top:22px}.footer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 20px}.footer-grid section:first-child{grid-column:1/-1}.footer-grid section:first-child img{width:190px}.footer-grid section p{font-size:13px}[data-support-rail]{right:12px;bottom:calc(12px + env(safe-area-inset-bottom));gap:8px}[data-support-rail] button{width:44px;height:44px;padding:9px}[data-support-rail] img{width:25px;height:25px}.pricing-page .product-head h2{font-size:18px}.faq-group h2{font-size:23px}.help-group h2{font-size:21px}}
.inner-page h1,.not-found h1{font-size:35px;line-height:1.25}.tutorial-header h1{font-size:35px;line-height:1.25}.inner-page .lead{font-size:16px;line-height:1.7}.help-full-link{margin:0 0 22px}.help-full-link a{font-weight:700;color:#925818}.inner-page{padding-bottom:60px}.faq-group h2{font-size:27px}.help-group h2{font-size:25px}.tutorial-page .article-body p,.tutorial-page .article-body li{font-size:17px;line-height:1.8}
.start-steps a{text-decoration:underline;text-decoration-color:#aebac1;text-underline-offset:3px}.start-steps a:hover{color:#925818;text-decoration-color:#925818}
@media(max-width:768px){.inner-page h1,.not-found h1,.tutorial-header h1{font-size:29px}.faq-group h2,.help-group h2{font-size:24px}.inner-page{padding-bottom:42px}}
.page .brand-inner-h1{font-size:35px;line-height:1.3}.brand-inner-h1 .h1-topic:before{content:" · "}
@media(max-width:768px){.page .brand-inner-h1{font-size:29px}.brand-inner-h1 .h1-topic{display:block}.brand-inner-h1 .h1-topic:before{content:""}}
.pricing-page .filter-bar button,.pricing-page .filter-count button{min-height:44px;font-size:14px;padding:9px 14px;line-height:1.4}.pricing-page .filter-count button{margin-left:10px}



/* Second-set selection artwork: complete portrait, with an accessible full-size view. */
.selection-artwork{margin:0;width:100%;max-width:440px;min-width:0;justify-self:end}
.selection-artwork>a{display:block;overflow:hidden;border:1px solid #dbe5ea;border-radius:12px;background:#fff;cursor:zoom-in;transition:transform .18s ease}
.selection-artwork>a:hover{transform:translateY(-2px)}
.selection-artwork img{display:block;width:100%;height:auto;max-height:none;object-fit:contain}
.selection-artwork figcaption{font-size:13px;line-height:1.6;color:#4b616b;text-align:center;margin:9px 0 0}
@media(max-width:768px){.selection-artwork{max-width:440px;margin:0 auto;align-self:center;justify-self:center}.selection-artwork figcaption{font-size:12px}}
@media(prefers-reduced-motion:reduce){.selection-artwork>a{transition:none}.selection-artwork>a:hover{transform:none}}

.selection-layout{grid-template-columns:minmax(0,1fr) 440px;gap:56px;align-items:center;margin-top:28px}
.selection-layout .selection-row{display:block;padding:22px 0}.selection-layout .selection-row h2{font-size:23px;margin-bottom:5px}
.selection-layout .selection-row>div:last-child{gap:3px 19px;margin-top:11px}
.selection-layout .selection-row a{padding:4px 0;border:0;border-radius:0;background:none;font-size:14px;line-height:1.7;min-height:32px}
.selection-layout .selection-row a:hover{text-decoration:underline;text-underline-offset:4px;background:none}
@media(max-width:1024px){.selection-layout{grid-template-columns:minmax(0,1fr) 40%;gap:32px}.selection-layout .selection-row{padding:17px 0}}
@media(max-width:768px){.selection-layout{display:flex;flex-direction:column;align-items:stretch;gap:28px;margin-top:23px}.selection-layout>.selection-artwork{order:-1}.selection-layout .selection-row h2{font-size:22px}.selection-layout .selection-row a{min-height:40px;display:inline-flex;align-items:center}.selection-layout .selection-rows{width:100%}}