.rd-home{--rd-ink: var(--color-ink);--rd-muted: var(--color-muted);--rd-faint: var(--color-subtle);--rd-line: var(--color-line);--rd-green: var(--color-accent);--rd-green-bright: #55c99b;--rd-paper: var(--color-surface);width:100%;max-width:1160px;margin-inline:auto;color:var(--rd-ink);font-family:inherit}.rd-home :where(h1,h2,h3,p,dl,dd){margin:0}.rd-home :where(a,button):focus-visible{outline:3px solid rgba(22,129,91,.38);outline-offset:3px}.rd-bench{display:grid;grid-template-columns:minmax(0,.9fr) minmax(520px,1.1fr);grid-template-areas:"intro quick" "readout readout";background:var(--rd-paper);border:1px solid var(--rd-line);border-radius:2px;box-shadow:0 18px 50px #111a220e}.rd-intro{grid-area:intro;position:relative;min-width:0;padding:clamp(30px,4.4vw,58px) clamp(28px,4vw,54px) 36px;overflow:hidden}.rd-calibration-rule{position:absolute;inset:0 18px auto;height:16px;display:flex;justify-content:space-between;border-top:3px solid var(--rd-green)}.rd-calibration-rule 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h1{max-width:none;white-space:nowrap;font-size:clamp(2rem,2.1vw,2.05rem)}.rd-intro>p{max-width:44ch;margin-top:22px;color:var(--rd-muted);font-size:clamp(.88rem,1.1vw,.98rem);line-height:1.78}.rd-trust-line{display:grid;grid-template-columns:auto minmax(0,1fr);gap:7px 10px;margin-top:30px;color:var(--rd-muted);font-size:.74rem;line-height:1.35}.rd-trust-line span{color:var(--rd-green);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.64rem}.rd-trust-line strong{font-weight:600}.rd-quick{grid-area:quick;min-width:0;margin:12px 12px 12px 0;padding:24px;color:#eff6f2;background:#10191f}[dir=rtl] .rd-quick{margin:12px 0 12px 12px}.rd-panel-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;padding:2px 2px 22px}.rd-panel-heading>div>span{color:var(--rd-green-bright)}.rd-panel-heading h2{margin-top:7px;color:#f7faf8;font-size:clamp(1.22rem,1.7vw,1.58rem);font-weight:600;line-height:1.15;letter-spacing:-.035em}.rd-panel-heading>small{color:#eff6f26b;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:1.55rem}.rd-quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.rd-quick-link{position:relative;min-width:0;min-height:122px;display:grid;grid-template-columns:34px minmax(0,1fr) auto;grid-template-rows:auto 1fr;gap:14px 12px;padding:16px;color:#edf4f0;background:#ffffff0b;transition:background-color .15s ease,color .15s ease}.rd-quick-link:hover{background:#56d7a41c}.rd-quick-link:first-child{background:var(--rd-green)}.rd-quick-link:first-child:hover{background:#116f4d}.rd-quick-index{grid-column:1 / -1;color:#edf4f085}.rd-quick-link:first-child .rd-quick-index{color:#ffffffb8}.rd-tool-icon{width:34px;height:34px;display:inline-grid;place-items:center;flex:0 0 auto;color:currentColor;background:#ffffff14;transition:color .16s ease,background-color .16s ease,border-color .16s ease,transform .16s ease}.rd-tool-icon svg{width:22px;height:22px;display:block}.rd-quick-copy{min-width:0}.rd-quick-copy strong{display:block;color:#fff;font-size:.93rem;font-weight:600;line-height:1.25}.rd-quick-copy small{display:-webkit-box;margin-top:6px;overflow:hidden;color:#edf4f094;font-size:.72rem;line-height:1.45;-webkit-line-clamp:2;-webkit-box-orient:vertical}.rd-link-arrow{color:var(--rd-green-bright);font-size:1rem;line-height:1}.rd-quick-link:first-child .rd-link-arrow{color:#fff}.rd-readout{grid-area:readout;display:grid;grid-template-columns:minmax(240px,.9fr) minmax(0,2.1fr);align-items:stretch;margin:0 12px 12px;color:var(--rd-ink);background:#eef2ef}.rd-readout-identity{min-width:0;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:4px 10px;padding:18px 22px}.rd-readout-identity>span:not(.rd-status-dot){color:var(--rd-muted);font-size:.72rem}.rd-readout-identity strong{grid-column:2 / -1;overflow:hidden;font-size:1.2rem;font-weight:700;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}.rd-readout-identity small{grid-column:3;grid-row:1;color:var(--rd-green);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.65rem;white-space:nowrap}.rd-signal-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));align-items:center;padding:10px 12px;background:#ffffff7a}.rd-signal-grid>div{min-width:0;padding:8px 12px}.rd-signal-grid dt{overflow:hidden;color:var(--rd-faint);font-size:.62rem;text-overflow:ellipsis;white-space:nowrap}.rd-signal-grid dd{margin-top:5px;overflow:hidden;color:var(--rd-ink);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.73rem;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.rd-section-lead{display:grid;grid-template-columns:minmax(130px,.25fr) minmax(0,.75fr);gap:30px;align-items:start}.rd-section-lead>span{padding-top:8px;color:var(--rd-green)}.rd-section-lead h2{color:var(--rd-ink);font-size:clamp(1.75rem,2.7vw,2.65rem);font-weight:700;line-height:1.06;letter-spacing:-.03em}.rd-section-lead p{max-width:66ch;margin-top:10px;color:var(--rd-muted);font-size:.88rem;line-height:1.65}.rd-catalogue{padding-top:clamp(54px,7vw,84px)}.rd-catalogue-groups{display:grid;gap:64px;margin-top:42px}.rd-catalogue-group{display:grid;grid-template-columns:minmax(210px,.32fr) minmax(0,.68fr);gap:clamp(30px,5vw,72px)}.rd-catalogue-group>header{position:relative;align-self:start;display:grid;grid-template-columns:auto minmax(0,1fr);gap:0 16px;padding-inline-start:14px}.rd-catalogue-group>header:before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--rd-green)}[dir=rtl] .rd-catalogue-group>header:before{inset:0 0 0 auto}.rd-catalogue-group>header>span{color:var(--rd-green);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.7rem;font-weight:800}.rd-catalogue-group>header 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strong{display:block;overflow:hidden;color:var(--rd-ink);font-size:.87rem;font-weight:700;line-height:1.28;text-overflow:ellipsis;white-space:nowrap}.rd-tool-list small{display:block;overflow:hidden;margin-top:4px;color:var(--rd-muted);font-size:.67rem;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.rd-tool-list em{color:var(--rd-green);font-size:.68rem;font-style:normal;font-weight:700}.rd-value-wrap{margin-top:clamp(64px,8vw,104px);color:#edf4f0;background:#10191f}.rd-value-wrap .shared-value-section{padding:clamp(30px,4.5vw,54px);background:transparent!important}.rd-value-wrap .shared-section-heading>span{color:var(--rd-green-bright);font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.rd-value-wrap .shared-section-heading h2{max-width:17ch;color:#f7faf8;font-size:clamp(1.7rem,2.8vw,2.7rem);font-weight:600}.rd-value-wrap .shared-section-heading p,.rd-value-wrap .shared-value-grid p{color:#edf4f09e}.rd-value-wrap .shared-value-grid{gap:28px 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840px){.rd-home{max-width:none}.rd-bench{grid-template-columns:1fr;grid-template-areas:"intro" "quick" "readout";border-inline:0;box-shadow:none}.rd-intro{padding:42px 22px 28px}.rd-intro h1{max-width:15ch;font-size:clamp(2.2rem,7.3vw,3.25rem)}:lang(zh-CN) .rd-intro h1,:lang(ja) .rd-intro h1,:lang(ko) .rd-intro h1{font-size:clamp(1.8rem,6.8vw,2.4rem)}.rd-kicker{margin-bottom:22px}.rd-intro>p{margin-top:15px;font-size:.84rem;line-height:1.65}.rd-trust-line{margin-top:22px}.rd-quick,[dir=rtl] .rd-quick{margin:0;padding:22px}.rd-quick-link{min-height:112px}.rd-readout{grid-template-columns:1fr;margin:0}.rd-signal-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.rd-catalogue,.rd-reference{padding-inline:2px}}@media (max-width: 620px){.rd-bench{margin-inline:-16px}.rd-calibration-rule{inset-inline:16px}.rd-intro{min-height:284px;padding-inline:16px}.rd-intro h1{font-size:clamp(1.85rem,8.2vw,2.15rem)}:lang(zh-CN) .rd-intro h1,:lang(ja) .rd-intro h1,:lang(ko) .rd-intro 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#111a2216;transition:transform .16s ease,box-shadow .16s ease}.rd-frequency-card:hover{color:var(--rd-ink);transform:translateY(-2px);box-shadow:0 2px 5px #111a2214,0 18px 38px #111a221d}.rd-frequency-card-topline{display:flex;align-items:center}.rd-frequency-card .rd-tool-icon{width:44px;height:44px;color:#0f6548;border:1px solid #bfd9cc;border-radius:10px;background:#e2f0e9}.rd-frequency-card .rd-tool-icon svg{width:26px;height:26px}.rd-frequency-copy{display:block;margin-top:18px}.rd-frequency-copy strong{display:block;color:var(--rd-ink);font-size:1.0625rem;font-weight:700;line-height:1.3}.rd-frequency-copy small{display:-webkit-box;margin-top:7px;overflow:hidden;color:var(--rd-muted);font-size:var(--type-sm);line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:2}.rd-frequency-action{display:flex;align-items:center;gap:7px;margin-top:auto;padding-top:18px;color:var(--rd-green);font-size:.8125rem;font-weight:700}.rd-frequency-action 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.rd-trust-line{display:grid;grid-template-columns:18px minmax(0,1fr);gap:9px 10px;margin-top:24px}.rd-hero .rd-trust-line span{margin-inline-end:0}.rd-frequency{padding:34px 0 28px}.rd-frequency-heading{margin-bottom:22px}.rd-frequency-heading h2{font-size:1.85rem}.rd-frequency-grid{grid-template-columns:1fr;gap:14px}.rd-frequency-card{min-height:178px;padding:19px;border-radius:10px}.rd-frequency-copy{margin-top:14px}}.rd-catalogue{padding-top:clamp(42px,5vw,58px)}.rd-catalogue-groups{gap:clamp(54px,7vw,78px);margin-top:40px}.rd-catalogue-group{display:block}.rd-catalogue-group>header{display:block;max-width:660px;padding:0}.rd-catalogue-group>header:before{display:none}.rd-catalogue-group>header h3{font-size:clamp(1.4rem,2vw,1.7rem);font-weight:700;letter-spacing:-.035em}.rd-catalogue-group>header p{margin-top:7px;color:var(--rd-muted);font-size:var(--type-sm);line-height:1.6}.rd-tool-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}.rd-tool-list a{min-width:0;min-height:154px;display:flex;flex-direction:column;align-items:flex-start;gap:0;padding:19px;color:var(--rd-ink);border-radius:10px;background:#fff;box-shadow:0 1px 2px #111a220e,0 9px 25px #111a2212;transition:transform .15s ease,box-shadow .15s ease}.rd-tool-list a:hover{color:var(--rd-ink);background:#fff;transform:translateY(-2px);box-shadow:0 2px 4px #111a2212,0 14px 31px #111a221a}.rd-tool-list .rd-tool-icon{width:38px;height:38px;color:#0f6548;border:1px solid #bfd9cc;border-radius:9px;background:#e2f0e9}.rd-tool-list .rd-tool-icon svg{width:23px;height:23px}.rd-tool-list a>span:nth-child(2){min-width:0;width:100%;margin-top:14px}.rd-tool-list strong{color:var(--rd-ink);font-size:var(--type-md);font-weight:700;line-height:1.3;white-space:normal}.rd-tool-list 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p{margin:0;color:var(--text-soft);font-size:.9rem;line-height:1.65}.screen-education-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.screen-education-card-grid article{padding:20px;border:1px solid rgba(15,23,42,.08);border-radius:17px;background:#ffffffad}.screen-education-card-grid h3{margin:14px 0 8px;font-size:1.05rem}.screen-education-card-grid p{margin:0;color:var(--text-soft);font-size:.86rem;line-height:1.65}.screen-education-faq-section{background:transparent!important}.screen-education-faq-list{display:grid;gap:10px}.screen-education-faq-list details{border:1px solid rgba(15,23,42,.08);border-radius:16px;background:#ffffffb8}.screen-education-faq-list summary{display:flex;justify-content:space-between;gap:16px;padding:17px 18px;cursor:pointer;list-style:none;font-weight:800}.screen-education-faq-list summary::-webkit-details-marker{display:none}.screen-education-faq-list summary i{color:#16815b;font-size:1.25rem;font-style:normal;transition:transform .16s ease}.screen-education-faq-list details[open] summary i{transform:rotate(45deg)}.screen-education-faq-list details>p{margin:0;padding:0 18px 18px;color:var(--text-soft);font-size:.88rem;line-height:1.68}.screen-editorial-section,.screen-reference-section{padding:clamp(34px,6vw,76px)}.screen-editorial-section+.screen-editorial-section,.screen-reference-section{border-top:1px solid rgba(15,23,42,.08)}.screen-guide-section{display:grid;grid-template-columns:minmax(240px,.65fr) minmax(0,1.35fr);gap:clamp(36px,6vw,90px);background:radial-gradient(circle at 0 0,rgba(87,223,169,.11),transparent 28%),#ffffffa3}.screen-editorial-index>span,.screen-compact-heading>span,.screen-wide-heading>span,.screen-reference-heading>span,.screen-card-number,.screen-scene-card>span{color:#16815b;font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.screen-editorial-index h2,.screen-wide-heading 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h2{max-width:900px;margin:0;font-size:clamp(1.8rem,3.6vw,3.2rem);line-height:1.1}.screen-scenario-section .screen-scene-grid{gap:0;border-top:1px solid rgba(15,23,42,.1)}.screen-scenario-section .screen-scene-card{min-height:230px;padding:28px 28px 8px 0;border:0;border-radius:0;background:transparent;box-shadow:none}.screen-scenario-section .screen-scene-card+.screen-scene-card{padding-left:28px;border-left:1px solid rgba(15,23,42,.1)}.screen-scenario-section .screen-scene-card h3{margin:44px 0 12px;font-size:1.25rem}.screen-scenario-section .screen-scene-card p{line-height:1.68}.screen-answers-section{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(42px,7vw,96px);background:#f5f7f5}.screen-limit-column,.screen-faq-column{min-width:0}.screen-compact-heading{margin-bottom:28px}.screen-compact-heading h2{font-size:clamp(2rem,3.5vw,3rem)}.screen-answers-section .screen-note-grid{grid-template-columns:1fr;gap:0}.screen-answers-section .screen-note-card{padding:22px 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button>span{display:block;width:100%;height:100%;border-radius:7px;background:var(--overlay-swatch);box-shadow:inset 0 0 0 1px #14201921}.screen-overlay-colors button.is-selected{color:inherit;background:#fff;box-shadow:0 0 0 2px var(--color-accent),0 4px 12px #14201924}.screen-overlay-colors button:focus-visible,.screen-overlay-step:focus-visible,.screen-overlay-exit:focus-visible{outline:3px solid rgba(22,119,86,.26);outline-offset:2px}.screen-overlay-exit{gap:8px;min-width:max-content;padding:0 15px;color:#fff;background:var(--color-ink);font-weight:800}.screen-overlay-exit:hover{background:var(--color-accent)}@media (max-width: 720px){.screen-overlay-controls{bottom:10px;display:grid;grid-template-columns:minmax(0,1fr) auto;width:calc(100vw - 20px);max-width:none;gap:9px;padding:10px;border-radius:18px}.screen-overlay-current{grid-template-columns:36px 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.focus-text-row{display:none}.screen-thumbnail--focus .focus-center{width:42px;height:42px}.screen-thumbnail--focus .focus-crosshair.horizontal{height:1px}.screen-thumbnail--focus .focus-crosshair.vertical{width:1px}.screen-thumbnail--focus .focus-ring{border-width:1px}.screen-thumbnail--focus .focus-ring-one{top:6px;right:6px;bottom:6px;left:6px}.screen-thumbnail--focus .focus-ring-two{top:14px;right:14px;bottom:14px;left:14px}.screen-thumbnail--focus .focus-dot{width:4px;height:4px}.contrast-pattern{display:grid;grid-template-rows:1fr 1fr;background:#7c7f86}.contrast-row{display:grid;grid-template-columns:repeat(6,minmax(0,1fr))}.contrast-row span{height:100%}.color-bars-pattern{display:grid;grid-template-columns:repeat(8,minmax(0,1fr))}.color-bars-pattern span{height:100%}.pixel-grid-pattern{display:grid;grid-template-columns:repeat(30,minmax(0,1fr));gap:1px;padding:18px;background:#0a0a0a}.pixel-grid-pattern 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.top-right{right:0;top:0}.edge-bleed-corners .bottom-left{left:0;bottom:0}.edge-bleed-corners .bottom-right{right:0;bottom:0}.keyboard-shell{padding:24px;overflow:hidden}.keyboard-grid-layout{display:grid;gap:8px}.keyboard-grid-row{display:grid;grid-template-columns:minmax(0,1fr) 156px 208px;gap:18px;align-items:stretch}.keyboard-cluster{display:flex;gap:6px}.keyboard-cluster-main,.keyboard-cluster-nav,.keyboard-cluster-numpad{min-width:0}.keyboard-platform-panel{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.keyboard-platform-switch{display:inline-flex;padding:4px;border-radius:999px;background:#0f172a0f}.keyboard-platform-switch button{padding:10px 14px;border-radius:999px;background:transparent;color:var(--text-soft);font-weight:600}.keyboard-platform-switch button.is-active{background:#111827;color:#fff}.support-note{padding:22px 24px;border-radius:28px;border:1px solid var(--border);background:var(--card-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow)}.support-note p{margin:10px 0 0;color:var(--text-soft)}.keyboard-row{display:flex;gap:6px;margin-bottom:6px}.keyboard-row:last-child{margin-bottom:0}.keyboard-row-compact{gap:6px;margin-bottom:0}.keycap{min-height:48px;border-radius:13px;background:linear-gradient(180deg,#fff,#eef2f7);border:1px solid rgba(15,23,42,.08);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px #fffc,0 6px 12px #94a3b81f;transition:transform 90ms ease,background .12s ease,box-shadow .12s ease}.keycap span{font-size:.82rem;color:#334155}.keycap.is-pressed{transform:translateY(2px) scale(.99);background:linear-gradient(180deg,#dbeafe,#cbd5e1);box-shadow:inset 0 1px #ffffffa6,0 2px 6px #3b82f62e}.keycap-compact{min-height:48px;border-radius:13px}.keycap-spacer{background:transparent;border-color:transparent;box-shadow:none}.keycap-ghost{opacity:0;pointer-events:none}.media-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);gap:20px}.mobile-camera-layout{display:grid;gap:20px}.mobile-camera-actions,.mobile-camera-previews{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.mobile-camera-card,.capture-preview-card{padding:24px;border-radius:28px;border:1px solid var(--border);background:var(--card-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow)}.mobile-camera-card p,.capture-preview-card p{color:var(--text-soft)}.mobile-camera-card .primary-button{margin-top:18px}.capture-preview-card{min-height:260px;display:flex;flex-direction:column;gap:14px}.capture-preview-card img{width:100%;height:220px;object-fit:cover;border-radius:20px;border:1px solid rgba(15,23,42,.08)}.hidden-input{display:none}.camera-stage{position:relative;overflow:hidden;min-height:560px;background:radial-gradient(circle at top,rgba(255,255,255,.16),transparent 35%),#101828}.camera-stage video{width:100%;height:100%;object-fit:cover}.empty-media-state{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:32px}.empty-media-state p{color:#ffffffc7}.media-actions{padding:24px;display:flex;flex-direction:column;gap:14px}.primary-button,.secondary-button,.record-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:14px 18px;border-radius:999px;background:#111827;color:#fff;font-weight:600;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease}.primary-button:hover,.secondary-button:hover,.record-button:hover{transform:translateY(-1px);box-shadow:0 12px 28px 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