/* DEEP Robotics · customer service. Local assets, system fonts, no UI dependencies. */
:root {
  --ink:#1d1d1f; --muted:#6e6e73; --soft:#85858b; --paper:#f5f5f7;
  --white:#fff; --line:rgb(0 0 0 / 9%); --blue:#0066cc; --button-blue:#0071e3;
  --radius:32px; --radius-sm:18px; --wrap:1200px;
  --ease:cubic-bezier(.22,1,.36,1); --ease-out:cubic-bezier(.2,.8,.2,1);
  --text:17px; --section:clamp(72px,7.6vw,112px);
}
* {box-sizing:border-box}
html {scroll-behavior:smooth;scroll-padding-top:90px;scrollbar-gutter:stable}
body {margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a {color:inherit;text-decoration:none}
button,input,textarea {font:inherit}
button {border:0;cursor:pointer;color:inherit}
button,a,summary {-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button:disabled {cursor:default}
img {max-width:100%;display:block}
svg {display:block}
[hidden] {display:none!important}
h1,h2,h3,h4,p {margin:0;overflow-wrap:break-word}
h1,h2,h3 {font-weight:650;line-height:1.2;letter-spacing:-.025em}
:focus-visible {outline:3px solid var(--blue);outline-offset:5px}
::selection {background:#dceafa;color:#162941}
.icon {width:21px;height:21px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.svg-defs {position:absolute;width:0;height:0;overflow:hidden}
.wrap {width:min(var(--wrap),calc(100% - 96px));margin-inline:auto}
.section-pad {padding-block:var(--section)}
.skip-link {position:fixed;z-index:100;top:12px;left:16px;padding:12px 20px;background:var(--ink);color:var(--white);border-radius:10px;transform:translateY(-160%)}
.skip-link:focus {transform:none}
.pill {display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:11px 23px;background:var(--ink);color:#fff;border-radius:99px;font-size:15px;font-weight:500;line-height:1.5;transition:background .2s,transform .2s var(--ease-out);white-space:nowrap}
.pill .icon {width:17px;height:17px}
.pill.primary {background:var(--button-blue);font-size:17px;padding:12px 25px;min-height:50px}
.pill.small {font-size:13px;min-height:44px;padding:10px 18px}
.pill.light {background:#f5f5f7;color:var(--ink)}
.text-link,.learn-link,.inline-action {display:inline-flex;align-items:center;gap:7px;min-height:44px;font-size:16px;color:var(--blue);background:transparent;padding:0;line-height:1.5}
.text-link .icon,.learn-link .icon,.inline-action .icon {width:17px;height:17px;transition:transform .25s var(--ease-out)}
.learn-link {color:var(--muted);font-size:14px}
.learn-link .icon {width:22px;height:22px;padding:4px;border-radius:50%;background:#e9e9ec;color:var(--ink)}
.service-actions {display:flex;align-items:center;flex-wrap:wrap;gap:8px 25px}
.eyebrow,.kicker {font-size:15px;font-weight:600;line-height:1.5;color:var(--muted);letter-spacing:.01em;margin-bottom:18px}
h2 {font-size:clamp(36px,3.65vw,52px)}
h2>span {color:var(--muted)}
.mobile-break {display:none}

/* One light functional layer, not glass content. */
.nav {height:68px;position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid transparent;transition:background .28s,border-color .28s,box-shadow .28s}
.nav.is-scrolled {background:rgb(255 255 255 / 86%);border-bottom-color:var(--line);box-shadow:0 2px 16px rgb(0 0 0 / 2%);-webkit-backdrop-filter:blur(20px) saturate(160%);backdrop-filter:blur(20px) saturate(160%)}
.nav-inner {display:flex;align-items:center;height:100%;gap:20px}
.brand {display:flex;flex-shrink:0;align-items:center;min-height:44px}
.brand img {width:121px;height:auto}
.nav-title {border-left:1px solid #d7d7dc;padding-left:20px;font-size:14px;font-weight:600;white-space:nowrap}
.desktop-nav {display:flex;gap:26px;align-items:center;margin-left:auto}
.desktop-nav a {display:flex;align-items:center;min-height:44px;font-size:13px;color:#55555b;transition:color .2s}
.desktop-nav a[aria-current="location"] {color:var(--ink);text-decoration:underline;text-underline-offset:8px;text-decoration-thickness:1px}
.nav-portal {margin-left:10px}
.menu-toggle {display:none;background:transparent;width:44px;height:44px;flex-shrink:0;position:relative;padding:0;border-radius:50%}
.menu-toggle span {position:absolute;left:12px;width:20px;height:1.5px;background:var(--ink);top:18px;transition:transform .25s var(--ease-out),top .25s var(--ease-out)}
.menu-toggle span+span {top:25px}
.menu-toggle[aria-expanded="true"] span {top:22px;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span+span {transform:rotate(-45deg)}
.mobile-nav {position:absolute;inset:100% 0 auto;background:#fff;border-bottom:1px solid var(--line);padding:10px 24px 24px;box-shadow:0 16px 24px rgb(0 0 0 / 5%)}
.mobile-nav a {display:flex;align-items:center;justify-content:space-between;min-height:57px;border-bottom:1px solid var(--line);font-size:17px}
.mobile-nav a:last-child {border:0}
.mobile-nav .icon {width:16px;height:16px;color:var(--muted)}

/* Product first. The supplied family photograph stays intact. */
.hero {text-align:center;overflow:hidden}
.hero-copy {padding:54px 24px 0;position:relative;z-index:1;animation:arrive .75s var(--ease) both}
.hero .eyebrow {font-size:17px;margin-bottom:19px;color:#55555a;font-weight:500}
.hero h1 {font-size:clamp(48px,5.2vw,76px);line-height:1.12;letter-spacing:-.025em}
.hero h1 span {color:#77777e}
.hero-description {margin:23px 0 24px;font-size:19px;line-height:1.7;color:#5e5e65}
.hero-actions {display:flex;justify-content:center;align-items:center;gap:28px}
.hero-actions .text-link {font-size:17px}
.hero-image {max-width:1120px;margin:9px auto 0;transform:translateY(var(--hero-y,0px));will-change:auto;animation:product-arrive 1s .06s var(--ease) both}
.hero-image img {width:100%;height:clamp(180px,36vw,440px);object-fit:cover;object-position:center 38%}
.hero-image.is-failed {min-height:220px;display:grid;place-items:center;background:var(--paper);margin-top:30px;border-radius:var(--radius)}
.image-fallback {color:var(--muted);font-size:18px}
.quick-services {display:grid;grid-template-columns:repeat(5,minmax(0,1fr));padding:24px 0 28px;border-top:1px solid var(--line);margin-top:6px}
.quick-services a {display:flex;align-items:center;justify-content:center;gap:10px;min-height:64px;padding:8px 12px;border-right:1px solid var(--line);font-size:14px;font-weight:500;transition:color .2s}
.quick-services a:last-child {border:0}
.quick-services a>.icon:first-child {width:23px;height:23px;stroke-width:1.45}
.quick-services a>.icon:last-child {width:13px;height:13px;color:var(--muted)}

/* A single, deliberate white surface connects finding and understanding. */
.services {background:var(--paper);padding-bottom:48px}
.section-heading {display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:45px}
.section-description {font-size:17px;color:var(--muted);line-height:1.8;max-width:360px}
.knowledge-panel {display:grid;grid-template-columns:1fr 1fr;background:#fff;border-radius:var(--radius);overflow:hidden}
.knowledge-item {padding:46px 48px 32px;min-width:0;position:relative}
.knowledge-item+.knowledge-item {border-left:1px solid var(--line)}
.knowledge-item h3,.aftercare-item h3 {font-size:38px;line-height:1.25}
.knowledge-item .kicker,.aftercare-item .kicker {font-size:14px;margin-bottom:16px}
.sub {font-size:17px;line-height:1.8;color:var(--muted);margin:17px 0 13px}
.library-view {margin-top:30px;padding:22px 24px 9px;background:var(--paper);border-radius:var(--radius-sm)}
.library-heading {display:flex;align-items:center;gap:8px;font-size:15px;padding-bottom:10px}
.library-heading strong {font-weight:600}
.library-heading>span {font-size:12px;color:var(--muted);margin-left:auto}
.library-heading .icon {width:17px;height:17px}
.library-view>a {display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:75px;padding:11px 0;border-top:1px solid var(--line);font-size:16px}
.library-view>a small {display:block;font-size:13px;color:var(--muted);margin-top:2px}
.library-view>a>.icon {width:16px;height:16px;color:var(--muted);transition:transform .2s}
.reading-visual {position:relative;padding:24px 30px 30px 13px;margin-top:22px;min-height:273px}
.reading-sheet {background:#f5f5f7;border-radius:16px;border:1px solid #e6e6eb;padding:24px 26px 31px;transform:rotate(-3deg);box-shadow:0 6px 20px rgb(0 0 0 / 3%)}
.reading-sheet-head {display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin-bottom:15px}
.reading-sheet-head .icon {width:17px;height:17px}
.reading-sheet>p {font-size:24px;line-height:1.4;letter-spacing:-.02em;color:#65656c}
.reading-sheet strong {color:#29292e;font-weight:600}
.reading-lines {display:grid;gap:9px;margin-top:19px}
.reading-lines i {height:4px;background:#d9d9e0;border-radius:4px;width:83%}
.reading-lines i:nth-child(2) {width:68%}
.reading-lines i:nth-child(3) {width:45%}
.reading-note {position:absolute;bottom:0;right:0;width:90%;display:flex;gap:13px;align-items:center;background:#fff;border:1px solid #e8e8ed;border-radius:16px;padding:20px 22px;box-shadow:0 10px 32px rgb(29 29 31 / 8%)}
.reading-note>.icon {width:27px;height:27px;color:#42424c;stroke-width:1.3}
.reading-note strong {font-size:17px;font-weight:600}
.reading-note p {color:var(--muted);font-size:12px;margin-top:4px}
.reading-caption {font-size:13px;color:var(--muted);text-align:center;margin-top:27px;line-height:1.7}

/* One dark feature moment; useful prompts instead of fake model responses. */
.intelligence {padding:0 0 var(--section);background:var(--paper)}
.ai-feature {border-radius:var(--radius);background:#1d1d20;color:#f5f5f7;padding:65px 58px 28px;display:grid;grid-template-columns:1fr 1fr;gap:28px 58px;overflow:hidden}
.ai-copy {align-self:center}
.ai-copy .eyebrow {color:#b5b5bd;font-weight:500;margin-bottom:23px}
.ai-copy h2 {font-size:48px;line-height:1.25}
.ai-copy h2 span {color:#aaaab4}
.ai-description {font-size:18px;line-height:1.8;color:#bdbdc6;margin-top:21px}
.ai-topics {display:flex;flex-wrap:wrap;gap:25px;margin:26px 0 25px;font-size:15px;color:#d6d6df}
.ai-topics>span {display:flex;align-items:center;gap:8px}
.ai-topics .icon {width:19px;height:19px}
.ai-copy .service-actions {gap:8px 18px}
.light-link {color:#d1d1da}
.light-link .icon {background:#3c3c43;color:#ededf3}
.ai-scope {margin-top:24px;font-size:13px;color:#b5b5be}
.home-guide {padding:28px 29px 22px;border:1px solid #45454d;border-radius:24px;background:#29292f;align-self:center;min-width:0;box-shadow:0 18px 44px rgb(0 0 0 / 10%)}
.guide-head {display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;color:#b5b5c0;margin-bottom:25px}
.guide-head>span:first-child {display:flex;align-items:center;gap:9px;color:#f5f5f7;font-size:15px;font-weight:500}
.guide-head .icon {width:18px;height:18px}
.segmented {display:inline-flex;gap:4px;max-width:100%;padding:4px;border-radius:12px;background:#ececf0;margin-bottom:22px}
.segmented button {font-size:14px;min-height:44px;padding:8px 14px;background:transparent;color:#5c5c64;border-radius:9px;line-height:1.45;transition:background .2s,color .2s,box-shadow .2s}
.segmented button[aria-pressed="true"] {background:#fff;color:var(--ink);box-shadow:0 2px 5px rgb(0 0 0 / 6%)}
.home-segmented {background:#202025;display:flex;margin-bottom:22px}
.home-segmented button {flex:1;color:#b8b8c4}
.home-segmented button[aria-pressed="true"] {background:#494951;color:#fff;box-shadow:0 2px 5px rgb(0 0 0 / 10%)}
#homeGuideContent h3 {font-size:24px;line-height:1.35;color:#f5f5f7;margin-bottom:11px}
.guide-description {font-size:16px;line-height:1.8;color:#bbbbc5;min-height:58px}
.guide-prompt {margin-top:22px;padding-top:20px;border-top:1px solid #484850}
.guide-prompt>span {font-size:12px;color:#b7b7c2}
.guide-prompt>p {font-size:16px;color:#e5e5ec;line-height:1.9;margin-top:9px;min-height:121px}
.copy-prompt {display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:13px;color:#e1e1eb;background:transparent;padding:7px 0;margin-top:12px}
.copy-prompt .icon {width:16px;height:16px}
.ai-disclaimer {grid-column:1/-1;border-top:1px solid #3f3f45;padding-top:22px;margin-top:11px;font-size:13px;line-height:1.8;color:#b6b6c1;text-align:center}

/* Feedback and follow-up share one service surface. */
.aftercare {background:#fff}
.aftercare-panel {display:grid;grid-template-columns:1fr 1fr;background:var(--paper);border-radius:var(--radius);overflow:hidden}
.aftercare-item {padding:44px 48px 38px;min-width:0}
.aftercare-item+.aftercare-item {border-left:1px solid #dedee4}
.care-icon {color:#4a4a55;margin-bottom:25px}
.care-icon>.icon {width:39px;height:39px;stroke-width:1.2}
.aftercare-item .sub {margin-bottom:18px}
.care-tags {display:flex;flex-wrap:wrap;font-size:13px;color:#676770;gap:8px 14px;margin-bottom:20px}
.care-tags>span+span {border-left:1px solid #d4d4dc;padding-left:14px}
.journey {display:grid;grid-template-columns:.9fr 2fr;align-items:center;gap:40px;margin-top:55px;padding:16px 10px 0}
.journey-intro h3 {font-size:25px;line-height:1.3}
.journey-intro p {font-size:14px;color:var(--muted);margin-top:12px}
.journey-path {display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}
.journey-path>a {display:flex;align-items:center;justify-content:center;flex-direction:column;position:relative;font-size:16px;min-height:96px;gap:9px}
.journey-path>a:not(:last-child)::after {content:'';position:absolute;right:-11px;top:45%;width:6px;height:6px;border-top:1px solid #bbbcc3;border-right:1px solid #bbbcc3;transform:rotate(45deg)}
.journey-path>a>.icon:first-child {width:25px;height:25px;stroke-width:1.4;color:#555561}
.journey-path>a>.icon:last-child {position:absolute;right:8px;bottom:17px;width:12px;height:12px;color:var(--muted)}

/* Reading surface, with native disclosure when scripts are unavailable. */
.faq {background:var(--paper)}
.faq-layout {display:grid;grid-template-columns:.9fr 1.3fr;gap:90px}
.faq-heading h2 {font-size:38px;line-height:1.3}
.faq-heading>p:last-child {font-size:16px;color:var(--muted);margin-top:20px}
.faq-list {border-top:1px solid #d5d5dc}
.faq-list details {border-bottom:1px solid #d5d5dc}
.faq-list summary {display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:76px;padding:22px 0;list-style:none;font-size:17px;font-weight:500;line-height:1.65;cursor:pointer}
.faq-list summary::-webkit-details-marker {display:none}
.faq-plus {position:relative;width:20px;height:20px;flex-shrink:0}
.faq-plus::before,.faq-plus::after {content:'';position:absolute;left:3px;top:9px;width:14px;height:1.5px;background:#72727b;transition:transform .25s var(--ease-out)}
.faq-plus::after {transform:rotate(90deg)}
.faq-list details[open] .faq-plus::after {transform:rotate(0)}
.faq-answer {padding:0 35px 25px 0}
.faq-answer p {font-size:16px;line-height:1.9;color:#5a5a63}
.faq-answer .inline-action {margin-top:12px;font-size:15px}
.closing {text-align:center;padding:92px 0 99px;background:#fff}
.closing .eyebrow {font-size:13px;font-weight:500;letter-spacing:.04em;margin-bottom:23px}
.closing h2 {font-size:clamp(38px,4vw,56px);line-height:1.25}
.closing-sub {color:var(--muted);font-size:18px;margin:24px 0 29px}
.footer {background:var(--paper);padding:28px 0 20px;font-size:13px;color:var(--muted)}
.footer-top {display:flex;justify-content:space-between;align-items:center;gap:30px;border-bottom:1px solid #dcdce2;padding-bottom:24px}
.footer-top .brand img {width:118px}
.footer-top nav {display:flex;flex-wrap:wrap;gap:25px}
.footer-top nav .text-link {font-size:13px;color:#565661}
.footer-top nav .icon {width:13px;height:13px}
.footer-bottom {display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:17px;font-size:12px}
.footer-bottom>a {display:inline-flex;align-items:center;gap:8px;min-height:44px}
.footer-bottom .icon {width:14px;height:14px;transform:rotate(180deg)}

/* Detail sheet: same typography, real preparation tools, interruptible WAAPI motion. */
#detail {position:fixed;border:0;padding:0;background:#fff;color:var(--ink);border-radius:30px;width:min(1080px,calc(100% - 64px));height:min(900px,calc(100dvh - 72px));max-width:none;max-height:none;margin:auto;overflow:hidden;box-shadow:0 24px 100px rgb(0 0 0 / 20%);overscroll-behavior:contain}
#detail::backdrop {background:rgb(20 20 25 / 40%)}
.detail-scroll {height:100%;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}
.detail-nav {position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:74px;padding:12px 23px;background:rgb(255 255 255 / 92%);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.back-button {display:flex;align-items:center;gap:9px;min-height:44px;padding:6px;background:transparent;font-size:14px}
.back-button .icon {transform:rotate(180deg);width:18px;height:18px}
#detailCount {font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.icon-button {display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#efeff2;color:#606069;flex-shrink:0}
.icon-button .icon {width:19px;height:19px}
.detail-intro {padding:48px 54px 30px;text-align:center}
.detail-intro .eyebrow {margin-bottom:15px;font-size:14px}
.detail-intro h2 {font-size:43px;line-height:1.22;outline:none}
.detail-intro>p:last-child {font-size:17px;line-height:1.8;color:var(--muted);max-width:680px;margin:19px auto 0}
.detail-stage {margin:0 38px;border-radius:20px;overflow:hidden;border:1px solid #e0e0e6;background:#fff}
.stage-bar {display:flex;justify-content:space-between;align-items:center;gap:18px;padding:16px 22px;background:#f5f5f7;border-bottom:1px solid #e0e0e6;font-size:14px}
.stage-bar>span:first-child {display:flex;align-items:center;gap:8px;font-weight:500}
.stage-bar>span:last-child {font-size:12px;color:var(--muted)}
.stage-bar .icon {width:17px;height:17px}
.stage-content {display:flex;align-items:stretch}
.stage-sidebar {width:224px;flex-shrink:0;padding:26px 21px;border-right:1px solid #e5e5eb;background:#fafafb}
.stage-sidebar strong {font-size:14px;font-weight:600}
.option-stack {display:grid;gap:8px;margin-top:18px}
.option-stack button {display:flex;align-items:center;justify-content:space-between;text-align:left;gap:6px;min-height:48px;padding:10px 12px;border-radius:9px;background:transparent;font-size:14px}
.option-stack button[aria-pressed="true"] {background:#e8e8ee;color:#22222a}
.option-stack .icon {width:16px;height:16px}
.sidebar-note {font-size:13px;color:var(--muted);line-height:1.8;margin-top:20px}
.stage-page {padding:28px;min-width:0;flex:1}
.stage-page h3 {font-size:24px;line-height:1.4;margin-bottom:12px}
.stage-page p {color:var(--muted);font-size:16px;line-height:1.8}
.soft-chip {display:inline-flex;align-items:center;min-height:25px;background:#f0f0f4;color:#666670;font-size:12px;padding:4px 10px;border-radius:6px;margin-bottom:15px;line-height:1.6}
.topic-links {display:grid;margin-top:22px;border-top:1px solid var(--line)}
.topic-links a {display:flex;align-items:center;gap:11px;min-height:58px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.topic-links a .icon {width:17px;height:17px;color:#62626e}
.topic-links a .icon:last-child {margin-left:auto;width:14px;height:14px}
.topic-hint {font-size:13px!important;margin-top:17px}
.reader-layout {display:grid;grid-template-columns:.8fr 1.2fr;gap:27px}
.reading-article {background:#f5f5f7;border-radius:12px;padding:24px 22px}
.reading-article>.icon {width:31px;height:31px;margin-bottom:19px;color:#686875}
.reading-article h3 {font-size:21px}
.reading-article p {font-size:15px}
.article-rule {height:4px;background:#d9d9e2;border-radius:4px;margin-top:13px;width:92%}
.article-rule:last-child {width:62%}
.reader-guidance {min-width:0}
.reader-guidance .segmented {display:flex;gap:2px}
.reader-guidance .segmented button {flex:1;padding-inline:9px;font-size:13px;white-space:nowrap}
#readerExplanation h3 {font-size:23px}
.prompt-box {border-radius:12px;background:#f5f5f7;padding:19px 20px;font-size:15px;line-height:1.9;margin-top:21px;color:#44444e}
.prompt-box>span {display:block;color:var(--muted);font-size:12px;margin-bottom:7px}
.source-note {display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.8;margin-top:19px}
.source-note .icon {width:17px;height:17px;margin-top:3px}
.ai-page-header {display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.preparation-grid {display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:22px;border-top:1px solid var(--line)}
.preparation-grid>div {padding:19px 18px 19px 0;border-bottom:1px solid var(--line)}
.preparation-grid>div:nth-child(even) {padding-left:24px}
.preparation-grid b {font-size:15px;font-weight:600}
.preparation-grid p {font-size:15px;margin-top:6px}
.feedback-layout {display:grid;grid-template-columns:1.15fr .85fr;gap:30px}
.checklist-top {display:flex;align-items:flex-start;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-bottom:6px}
.checklist-top h3 {font-size:23px}
#checkCount {font-size:13px;color:var(--muted);white-space:nowrap}
.prepare-check {display:flex;align-items:flex-start;gap:13px;min-height:76px;text-align:left;width:100%;background:transparent;padding:16px 0;border-bottom:1px solid var(--line)}
.prepare-check>span:first-child {width:22px;height:22px;border:1px solid #a8a8b4;border-radius:6px;display:grid;place-items:center;flex-shrink:0;margin-top:3px;background:#fff}
.prepare-check>span:first-child .icon {width:15px;height:15px;opacity:0}
.prepare-check[aria-pressed="true"]>span:first-child {background:var(--button-blue);border-color:var(--button-blue);color:#fff}
.prepare-check[aria-pressed="true"]>span:first-child .icon {opacity:1}
.prepare-check b {font-size:16px;font-weight:600}
.prepare-check small {display:block;font-size:14px;line-height:1.8;color:var(--muted);margin-top:5px}
.template-panel {background:var(--paper);padding:24px;border-radius:14px;min-width:0}
.template-panel>.icon {width:32px;height:32px;margin-bottom:18px;color:#72727e}
.template-panel h3 {font-size:22px}
.template-panel p {font-size:15px}
.template-panel p:last-of-type {font-size:13px;margin-top:17px}
.secondary-button {display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 12px;background:#fff;border:1px solid #dcdce4;border-radius:10px;font-size:14px;line-height:1.5;margin-top:18px}
.secondary-button .icon {width:17px;height:17px}
.copy-fallback {margin-top:17px;font-size:13px}
.copy-fallback textarea {display:block;width:100%;min-height:190px;border:1px solid #a9a9b6;border-radius:8px;background:#fff;color:var(--ink);padding:12px;font-size:15px;line-height:1.8;resize:vertical;margin-top:8px}
.progress-heading {display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.progress-heading h3 {margin:0}
.progress-heading .soft-chip {margin:0}
.record-flow {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:28px 0}
.record-step {padding:0 20px;border-right:1px solid var(--line)}
.record-step:first-child {padding-left:0}
.record-step:last-child {padding-right:0;border:0}
.record-step>span {display:grid;place-items:center;width:38px;height:38px;background:#f0f0f4;border-radius:50%;font-size:12px;color:var(--muted);margin-bottom:16px;font-variant-numeric:tabular-nums}
.record-step h4 {font-size:17px;font-weight:600}
.record-step p {font-size:15px;margin-top:9px}
.record-note {display:flex;align-items:flex-start;gap:10px;background:var(--paper);border-radius:12px;padding:17px 18px;font-size:14px;line-height:1.85;color:var(--muted)}
.record-note .icon {width:18px;height:18px;margin-top:3px}
.feature-notes {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin:34px 48px 28px}
.feature-notes b {font-size:16px;font-weight:600}
.feature-notes p {font-size:14px;color:var(--muted);line-height:1.85;margin-top:8px}
.detail-guidance {margin:0 48px 25px;font-size:13px;line-height:1.85;text-align:center;color:var(--muted)}
.detail-cta {text-align:center;padding:6px 28px 35px}
.detail-cta>p {margin-top:14px;font-size:13px;line-height:1.8;color:var(--muted)}
.detail-bottom {display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--paper);border-top:1px solid var(--line);padding:13px 25px}
.detail-bottom>button {display:flex;align-items:center;gap:8px;min-height:44px;font-size:14px;background:transparent;padding:6px}
.detail-bottom>span {font-size:12px;color:var(--muted)}
.detail-bottom .icon {width:17px;height:17px}
#previous .icon {transform:rotate(180deg)}
.toast {position:fixed;z-index:50;left:50%;bottom:28px;max-width:calc(100% - 40px);width:max-content;padding:14px 21px;background:#2b2b32;color:#fff;border:1px solid #50505a;border-radius:14px;box-shadow:0 8px 30px rgb(0 0 0 / 13%);font-size:14px;line-height:1.7;opacity:0;transform:translate(-50%,12px);pointer-events:none;transition:opacity .2s,transform .24s}
.toast:empty {display:none}
.toast.is-visible {opacity:1;transform:translate(-50%,0)}
#detail .toast {position:sticky;left:auto;margin:0 auto;bottom:20px;transform:translateY(10px)}
#detail .toast.is-visible {transform:none}

/* Content stays visible by default; motion only starts after successful setup. */
.reveal {opacity:1}
@keyframes arrive {from {opacity:0;transform:translateY(13px)} to {opacity:1;transform:none}}
@keyframes product-arrive {from {opacity:0;translate:0 18px} to {opacity:1;translate:0 0}}
@media (hover:hover) {
  .pill:hover {background:#333338}
  .pill.primary:hover {background:#0077ed}
  .pill.light:hover {background:#fff}
  .text-link:hover,.inline-action:hover {text-decoration:underline;text-underline-offset:4px}
  .text-link:hover .icon {transform:translateX(2px)}
  .learn-link:hover {color:var(--ink)}
  .light-link:hover {color:#fff}
  .quick-services a:hover {color:var(--blue)}
  .library-view>a:hover {color:var(--blue)}
  .library-view>a:hover .icon {transform:translateX(2px)}
  .desktop-nav a:hover {color:var(--blue)}
  .reading-note {transition:transform .35s var(--ease-out)}
  .reader-item:hover .reading-note {transform:translateY(-3px)}
  .topic-links a:hover,.option-stack button:hover,.prepare-check:hover {background:#f5f5f8}
  .icon-button:hover,.secondary-button:hover {background:#e7e7ee}
  .copy-prompt:hover {color:#fff;text-decoration:underline;text-underline-offset:4px}
  .journey-path>a:hover {color:var(--blue)}
}
.pill:active,.icon-button:active,.copy-prompt:active {transform:scale(.975)}

@media (max-width:1100px) {
  .wrap {width:calc(100% - 64px)}
  .nav-inner {gap:15px}
  .nav-title {padding-left:15px}
  .desktop-nav {gap:18px}
  .nav-portal {margin-left:0}
  .knowledge-item,.aftercare-item {padding-inline:33px}
  .knowledge-item h3,.aftercare-item h3 {font-size:33px}
  .service-actions {column-gap:18px}
  .ai-feature {padding:49px 38px 25px;gap:24px 30px}
  .ai-copy h2 {font-size:40px}
  .ai-description {font-size:17px}
  .home-guide {padding:25px 23px 20px}
  .faq-layout {gap:50px}
  .faq-heading h2 {font-size:34px}
  .guide-prompt>p {min-height:150px}
}
@media (max-width:900px) {
  .desktop-nav {display:none}
  .nav-portal {margin-left:auto}
  .menu-toggle {display:block}
  .hero-copy {padding-top:43px}
  .hero h1 {font-size:61px}
  .quick-services a {flex-direction:column;gap:8px;position:relative;font-size:13px}
  .quick-services a>.icon:last-child {display:none}
  .knowledge-item {padding:35px 25px 28px}
  .knowledge-item h3 {font-size:30px}
  .sub {font-size:16px}
  .desktop-break {display:none}
  .library-view {padding:18px 18px 7px}
  .library-heading>span {font-size:11px}
  .reading-visual {padding:25px 16px 30px 0}
  .reading-sheet {padding:22px 20px 34px}
  .reading-note {width:96%;padding:18px 15px;gap:8px}
  .reading-note strong {font-size:16px}
  .reading-note p {font-size:12px}
  .ai-feature {gap:25px 25px;padding:45px 28px 25px}
  .ai-copy h2 {font-size:35px}
  .ai-copy .service-actions {align-items:flex-start;flex-direction:column}
  .ai-scope {font-size:12px}
  .home-guide {padding:23px 19px 18px}
  #homeGuideContent h3 {font-size:22px}
  .guide-description {font-size:15px;min-height:81px}
  .guide-prompt>p {font-size:15px;min-height:143px}
  .aftercare-item {padding:35px 28px 29px}
  .aftercare-item h3 {font-size:30px}
  .journey {gap:25px}
  .journey-path {gap:9px}
  .journey-path>a {font-size:15px}
  .journey-path>a>.icon:last-child {display:none}
  .faq-layout {grid-template-columns:.85fr 1.25fr;gap:35px}
  .faq-heading h2 {font-size:29px}
  .faq-list summary {font-size:16px}
  #detail {width:calc(100% - 40px);height:calc(100dvh - 40px);border-radius:24px}
  .detail-intro {padding:37px 32px 27px}
  .detail-stage {margin-inline:24px}
  .stage-sidebar {width:179px;padding:23px 16px}
  .stage-page {padding:23px}
  .reader-layout,.feedback-layout {grid-template-columns:1fr}
  .reading-article {display:none}
  .feature-notes {margin-inline:30px;gap:20px}
  .ai-page-header {gap:0 15px}
  .progress-heading h3 {font-size:23px}
}
@media (max-width:620px) {
  :root {--section:68px;--radius:24px;--text:16px}
  html {scroll-padding-top:80px;scrollbar-gutter:auto}
  .wrap {width:calc(100% - 40px)}
  .nav {height:64px}
  .nav-inner {width:calc(100% - 24px);gap:8px}
  .brand img {width:99px}
  .nav-title {padding-left:10px;font-size:12px}
  .pill.small {padding:9px 12px;font-size:12px;gap:5px}
  .pill.small .icon {width:13px;height:13px}
  .nav-portal {margin-left:auto}
  .menu-toggle {width:44px;flex-basis:44px}
  .menu-toggle span {left:12px}
  .hero-copy {padding:42px 20px 0}
  .hero .eyebrow {font-size:14px;margin-bottom:20px}
  .hero h1 {font-size:46px;line-height:1.18;letter-spacing:-.025em}
  .hero-description {font-size:16px;line-height:1.8;margin:21px 0 23px}
  .hero-actions {gap:23px}
  .hero-actions .pill.primary {font-size:15px;padding:12px 20px;min-height:48px}
  .hero-actions .text-link {font-size:15px}
  .hero-image {margin:18px auto 0}
  .hero-image img {height:clamp(180px,46vw,285px);object-position:center 40%}
  .quick-services {grid-template-columns:repeat(6,minmax(0,1fr));padding:16px 0 19px;margin-top:15px;row-gap:10px}
  .quick-services a {grid-column:span 2;min-height:74px;padding:6px 4px;border:0;font-size:13px;gap:8px}
  .quick-services a:nth-child(4) {grid-column:2 / span 2}
  .quick-services a:nth-child(5) {grid-column:4 / span 2}
  .quick-services a>.icon:first-child {width:24px;height:24px}
  .section-heading {display:block;margin-bottom:28px}
  .section-heading .eyebrow {font-size:14px;margin-bottom:14px}
  h2 {font-size:36px;line-height:1.25}
  .section-description {font-size:16px;margin-top:19px;line-height:1.8}
  .section-description br {display:none}
  .mobile-break {display:block}
  .services {padding-bottom:28px}
  .knowledge-panel {grid-template-columns:1fr}
  .knowledge-item {padding:30px 25px 28px}
  .knowledge-item+.knowledge-item {border-left:0;border-top:1px solid var(--line)}
  .knowledge-item h3,.aftercare-item h3 {font-size:32px;line-height:1.28}
  .knowledge-item .kicker,.aftercare-item .kicker {font-size:14px;margin-bottom:16px}
  .sub {font-size:16px;line-height:1.85;margin-top:16px}
  .service-actions {gap:4px 20px}
  .text-link {font-size:15px}
  .learn-link {font-size:13px}
  .library-view {padding:19px 18px 9px;margin-top:23px}
  .library-heading {font-size:14px}
  .library-heading>span {font-size:11px}
  .library-view>a {min-height:74px;font-size:15px}
  .library-view>a small {font-size:13px}
  .reading-visual {padding:26px 22px 33px 9px;margin-top:13px}
  .reading-sheet {padding:24px 22px 29px}
  .reading-sheet>p {font-size:23px}
  .reading-note {width:94%;padding:19px 17px}
  .reading-note strong {font-size:16px}
  .reading-caption {font-size:13px;margin-top:22px}
  .intelligence {padding-bottom:var(--section)}
  .ai-feature {grid-template-columns:1fr;padding:35px 25px 24px;gap:30px;width:calc(100% - 40px)}
  .ai-copy .eyebrow {font-size:14px;margin-bottom:20px}
  .ai-copy h2 {font-size:35px}
  .ai-description {font-size:16px;margin-top:18px}
  .ai-copy .service-actions {flex-direction:row;align-items:center;gap:7px 18px}
  .ai-copy .pill {min-height:48px;font-size:14px;padding-inline:18px}
  .ai-topics {font-size:14px;gap:21px;margin-block:21px}
  .ai-scope {font-size:12px;margin-top:18px}
  .home-guide {padding:22px 19px 15px;border-radius:19px}
  .guide-head {font-size:12px;margin-bottom:20px;gap:8px}
  .guide-head>span:first-child {font-size:14px;gap:7px}
  .home-segmented {margin-bottom:21px}
  .home-segmented button {font-size:14px}
  #homeGuideContent h3 {font-size:22px}
  .guide-description {font-size:16px;min-height:0}
  .guide-description br {display:none}
  .guide-prompt>p {font-size:16px;min-height:0;line-height:1.85}
  .guide-prompt {margin-top:19px;padding-top:17px}
  .copy-prompt {font-size:13px}
  .ai-disclaimer {font-size:13px;text-align:left;margin-top:0;padding-top:20px}
  .aftercare-panel {grid-template-columns:1fr}
  .aftercare-item {padding:32px 25px}
  .aftercare-item+.aftercare-item {border-left:0;border-top:1px solid #dedee4}
  .care-icon {margin-bottom:22px}
  .care-icon>.icon {width:36px;height:36px}
  .care-tags {font-size:13px;gap:8px 10px}
  .care-tags>span+span {padding-left:10px}
  .journey {grid-template-columns:1fr;gap:20px;padding:0;margin-top:39px}
  .journey-intro h3 {font-size:24px}
  .journey-intro h3 br {display:none}
  .journey-intro p {font-size:14px;margin-top:11px}
  .journey-path {gap:12px}
  .journey-path>a {font-size:14px;min-height:83px}
  .journey-path>a:not(:last-child)::after {right:-10px}
  .faq-layout {grid-template-columns:1fr;gap:28px}
  .faq-heading h2 {font-size:32px}
  .faq-heading>p:last-child {font-size:16px;margin-top:16px}
  .faq-list summary {font-size:16px;line-height:1.7;padding:21px 0;min-height:73px;gap:20px}
  .faq-answer {padding:0 0 23px}
  .faq-answer p {font-size:16px;line-height:1.85}
  .closing {padding:66px 0 70px}
  .closing .eyebrow {font-size:12px;margin-bottom:24px}
  .closing h2 {font-size:36px;line-height:1.3}
  .closing-sub {font-size:16px;margin:22px 0 27px}
  .closing .pill.primary {font-size:16px}
  .footer {padding-block:25px 20px}
  .footer-top {flex-direction:column;align-items:flex-start;gap:20px;padding-bottom:20px}
  .footer-top nav {gap:8px 21px}
  .footer-top nav .text-link {font-size:13px}
  .footer-bottom {flex-direction:column;align-items:flex-start;gap:4px;font-size:12px;padding-top:19px}
  #detail {width:100%;height:100dvh;margin:0;max-height:100%;border-radius:0}
  .detail-scroll {scrollbar-gutter:auto}
  .detail-nav {min-height:66px;padding:11px 15px;padding-top:max(11px,env(safe-area-inset-top))}
  .detail-intro {padding:31px 24px 25px;text-align:left}
  .detail-intro .eyebrow {font-size:14px}
  .detail-intro h2 {font-size:35px;line-height:1.27}
  .detail-intro>p:last-child {font-size:16px;line-height:1.85;margin-top:19px}
  .detail-stage {margin-inline:15px;border-radius:15px}
  .stage-bar {padding:15px 17px;font-size:14px;gap:10px}
  .stage-bar>span:last-child {font-size:11px}
  .stage-content {display:block}
  .stage-sidebar {width:auto;border-right:0;border-bottom:1px solid var(--line);padding:19px}
  .stage-sidebar strong {font-size:14px}
  .option-stack {grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
  .option-stack button {font-size:15px}
  .sidebar-note {font-size:13px;margin-top:13px}
  .stage-page {padding:22px 19px}
  .stage-page h3 {font-size:23px}
  .stage-page p {font-size:16px}
  .segmented {display:flex;max-width:100%;gap:2px;margin-bottom:20px}
  .segmented button {flex:1;font-size:13px;padding:9px 8px;min-height:44px}
  .topic-links a {font-size:15px;min-height:61px;gap:10px}
  .topic-hint {font-size:13px!important}
  .reader-layout {display:block}
  .reader-guidance .segmented button {font-size:13px;padding-inline:6px}
  #readerExplanation h3 {font-size:23px}
  .prompt-box {font-size:16px;line-height:1.85;padding:18px 16px}
  .prompt-box>span {font-size:12px}
  .source-note {font-size:13px}
  .ai-page-header {display:block}
  .ai-page-header .soft-chip {font-size:12px}
  .preparation-grid {grid-template-columns:1fr;margin-top:18px}
  .preparation-grid>div,.preparation-grid>div:nth-child(even) {padding:17px 0}
  .preparation-grid b {font-size:16px}
  .preparation-grid p {font-size:16px}
  .feedback-layout {display:block}
  .checklist-top h3 {font-size:22px;margin-bottom:0}
  .checklist-top {gap:10px}
  .prepare-check {padding:17px 0;gap:11px}
  .prepare-check b {font-size:16px}
  .prepare-check small {font-size:15px}
  .template-panel {margin-top:25px;padding:22px 19px}
  .template-panel p {font-size:16px}
  .template-panel p:last-of-type {font-size:13px}
  .secondary-button {min-height:48px;font-size:14px}
  .progress-heading {display:block}
  .progress-heading h3 {font-size:23px}
  .progress-heading .soft-chip {margin-top:14px}
  .record-flow {grid-template-columns:1fr;margin-block:23px}
  .record-step,.record-step:first-child,.record-step:last-child {position:relative;padding:0 0 25px 54px;border:0}
  .record-step:last-child {padding-bottom:0}
  .record-step:not(:last-child)::after {position:absolute;content:'';width:1px;left:18px;top:45px;height:calc(100% - 53px);background:#d7d7df}
  .record-step>span {position:absolute;top:0;left:0}
  .record-step h4 {font-size:18px}
  .record-step p {font-size:16px;line-height:1.8}
  .record-note {font-size:14px;padding:16px}
  .feature-notes {grid-template-columns:1fr;margin:27px 25px 25px;gap:0}
  .feature-notes>div {padding:17px 0;border-bottom:1px solid var(--line)}
  .feature-notes>div:first-child {padding-top:0}
  .feature-notes>div:last-child {border:0}
  .feature-notes b {font-size:16px}
  .feature-notes p {font-size:16px;line-height:1.85}
  .detail-guidance {font-size:13px;text-align:left;margin:0 25px 23px}
  .detail-cta {padding:6px 24px 29px}
  .detail-cta .pill {min-height:48px;font-size:15px}
  .detail-cta>p {font-size:13px}
  .detail-bottom {padding:13px 16px;padding-bottom:max(13px,env(safe-area-inset-bottom));gap:8px}
  .detail-bottom>span {display:none}
  .detail-bottom>button {font-size:14px}
  .toast {font-size:14px;max-width:calc(100% - 30px);padding:13px 18px;bottom:max(20px,env(safe-area-inset-bottom))}
}
@media (max-width:370px) {
  .wrap {width:calc(100% - 32px)}
  .nav-title {display:none}
  .nav-inner {gap:8px}
  .hero h1 {font-size:40px}
  .hero-copy {padding-inline:14px}
  .hero-description {font-size:16px}
  .hero-description br {display:none}
  .hero-actions {gap:16px}
  .hero-actions .pill.primary {padding-inline:17px}
  .quick-services a {font-size:12px}
  .knowledge-item,.aftercare-item {padding-inline:22px}
  .library-heading {gap:6px;font-size:13px}
  .library-heading>span {font-size:10px}
  .library-view {padding-inline:15px}
  .reading-visual {padding-inline:0 10px}
  .reading-note {padding:16px 12px;gap:8px;width:98%}
  .reading-note>.icon {width:22px;height:22px}
  .reading-note p {font-size:11px}
  .ai-feature {width:calc(100% - 32px);padding-inline:22px}
  .ai-copy h2 {font-size:31px}
  .home-guide {padding:21px 16px 15px;margin-inline:-6px}
  .care-tags {font-size:12px;gap:6px 8px}
  .care-tags>span+span {padding-left:8px}
  .journey-path {gap:8px}
  .journey-path>a {font-size:13px}
  .journey-path>a:not(:last-child)::after {right:-7px}
  .stage-bar {flex-wrap:wrap}
  .stage-page {padding-inline:16px}
  .segmented button {padding-inline:5px;font-size:12px}
  .reader-guidance .segmented button {font-size:12px;padding-inline:4px}
  .detail-intro h2 {font-size:31px}
}
@supports not (backdrop-filter:blur(1px)) {.nav.is-scrolled,.detail-nav {background:#fff}}
@media (prefers-reduced-transparency:reduce) {.nav.is-scrolled,.detail-nav {background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}}
@media (prefers-contrast:more) {
  :root {--muted:#484850;--line:#83838c}
  .hero h1 span {color:#55555c}
  .ai-feature {border:1px solid #696975}
  .learn-link {color:#4c4c55}
  .light-link {color:#fff}
  .nav.is-scrolled,.detail-nav {background:#fff}
}
@media (forced-colors:active) {
  .pill,.home-guide,.knowledge-panel,.aftercare-panel,.reading-note,.ai-feature {border:1px solid CanvasText}
  button[aria-pressed="true"] {outline:2px solid Highlight}
  .reading-lines {display:none}
  .nav.is-scrolled,.detail-nav {background:Canvas}
}
@media (prefers-reduced-motion:reduce) {
  html {scroll-behavior:auto}
  *,*::before,*::after {animation:none!important;transition:none!important}
  .hero-image {transform:none!important}
}
@media print {
  .nav,.hero-actions,.quick-services,.menu-toggle,.closing,.copy-prompt,dialog,.toast {display:none!important}
  body {font-size:12pt}
  .wrap {width:100%}
  .section-pad {padding:24px 0}
  .ai-feature {color:#000;background:#fff;border:1px solid #ccc}
  .ai-feature * {color:#000!important}
  .knowledge-panel,.aftercare-panel {break-inside:avoid}
  .hero-image img {height:220px;object-fit:contain}
}

.ai-feature :focus-visible {outline-color:#9dcaff}