/* Shared presentation for SmartReach product and learning pages. */
:root{color-scheme:light;--sr-ink:#182832;--sr-muted:#63717a;--sr-coral:#b84734;--sr-soft:#faf6f2;--sr-line:#e5e7e7;--sr-radius:18px}
.sr-page{margin:0;background:#fff;color:var(--sr-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
.sr-page *{box-sizing:border-box}.sr-page a{color:inherit;text-decoration:none}.sr-page button,.sr-page input{font:inherit}.sr-page img{display:block;max-width:100%;height:auto}.sr-page figure,.sr-page p{margin:0}.sr-page h1,.sr-page h2,.sr-page h3{margin:0;font-weight:650;letter-spacing:-.035em;line-height:1.3}.sr-page h2{font-size:clamp(30px,3.1vw,42px)}.sr-page h3{font-size:20px;letter-spacing:-.02em}.sr-page :focus-visible{outline:3px solid #c14b37;outline-offset:5px}.sr-page [id]{scroll-margin-top:110px}.sr-shell{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.sr-header{position:sticky;top:0;z-index:30;background:#fffffff2;border-bottom:1px solid #edf0f0;backdrop-filter:blur(14px)}.sr-header-inner{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:28px}.sr-brand{flex-shrink:0}.sr-brand img{width:166px;height:auto}.sr-nav{display:flex;align-items:center;gap:30px;font-size:14px;white-space:nowrap}.sr-nav a{position:relative;color:#58656c;padding-block:12px}.sr-nav a:hover,.sr-nav a[aria-current]{color:var(--sr-ink)}.sr-nav a[aria-current]::after{content:"";position:absolute;bottom:3px;left:0;width:22px;height:2px;background:var(--sr-coral)}.sr-auth{display:flex;align-items:center;gap:24px;font-size:14px}.sr-auth .sr-button{padding:10px 20px;min-height:42px;font-size:14px}.sr-mobile-menu{display:none}
.sr-button{display:inline-flex;align-items:center;justify-content:center;gap:15px;min-height:51px;padding:13px 25px;border:1px solid var(--sr-ink);border-radius:7px;background:var(--sr-ink);color:#fff!important;font-size:15px;font-weight:600;line-height:1.5;transition:background .16s,transform .16s}.sr-button:hover{background:#2f4654;transform:translateY(-1px)}.sr-button-secondary{background:transparent;color:var(--sr-ink)!important;border-color:#c9cfce}.sr-button-secondary:hover{background:#f1eeeb}.sr-button-text{display:inline-flex;align-items:center;gap:10px;color:var(--sr-coral)!important;font-weight:600;border-bottom:1px solid #d9534040;padding-bottom:3px}.sr-actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:30px}
.sr-hero{position:relative;overflow:hidden;padding:88px 0 76px;background:linear-gradient(112deg,#fff 25%,#faf6f2 100%)}.sr-hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:52px}.sr-kicker,.sr-eyebrow{color:var(--sr-coral);font-size:13px;font-weight:600;letter-spacing:.08em}.sr-kicker{margin-bottom:23px!important;display:flex;align-items:center;gap:10px}.sr-kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--sr-coral)}.sr-page h1{font-size:clamp(36px,3.6vw,51px);line-height:1.3;letter-spacing:-.045em}.sr-accent{color:var(--sr-coral)}.sr-lead{margin-top:24px!important;max-width:36em;color:#5b6972;font-size:17px;line-height:1.9}.sr-hero-copy>.sr-muted{margin-top:20px;font-size:12px;max-width:36em}.sr-muted{color:var(--sr-muted);line-height:1.85}.sr-hero-visual{position:relative;padding-top:16px}.sr-hero-visual::before{content:"";position:absolute;inset:-22px -36px 24px 28px;border:1px solid #e9ddd5;border-radius:120px 22px 22px 22px;transform:rotate(-4deg)}.sr-window{position:relative;overflow:hidden;border:1px solid #dce2e7;border-radius:12px;background:#fff;box-shadow:0 24px 55px -28px #28343d55}.sr-window-bar{display:flex;align-items:center;gap:5px;min-height:34px;padding:0 12px;border-bottom:1px solid #e7e9ea;background:#f7f8f9}.sr-window-bar>span{width:6px;height:6px;background:#ced5da;border-radius:50%}.sr-window-bar>p{margin-left:8px;color:#6d7780;font-size:10px;letter-spacing:.03em}.sr-window>img{width:100%}.sr-visual-caption,.sr-shot-caption{position:relative;margin-top:15px!important;font-size:12px;color:#63717a;line-height:1.7}.sr-visual-caption{text-align:center}
.sr-section{padding:88px 0}.sr-section-soft{background:var(--sr-soft)}.sr-section-dark{background:#182c37;color:#fff}.sr-section-heading{max-width:650px;margin-bottom:42px}.sr-eyebrow{margin-bottom:14px!important}.sr-section-heading>.sr-muted{margin-top:18px}.sr-flow{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;padding:0;margin:0}.sr-flow-step{position:relative;padding-top:24px;border-top:1px solid #d7dcd9}.sr-step-index{display:block;font-size:13px;letter-spacing:.07em;color:#b75a48;margin-bottom:22px}.sr-flow-step h3{font-size:18px;margin-bottom:12px}.sr-flow-step p{color:var(--sr-muted);font-size:14px;line-height:1.85}.sr-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.sr-split>div>h2+.sr-muted{margin-top:20px}.sr-channel-list{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:19px 22px}.sr-channel-list li{border-left:2px solid #dacec6;padding-left:13px;min-width:0}.sr-channel-list strong{display:block;font-size:14px;font-weight:600}.sr-channel-list span{display:block;font-size:12px;color:var(--sr-muted);margin-top:3px;line-height:1.65}.sr-shot img{width:100%;border-radius:10px;border:1px solid #d9dfe3;box-shadow:0 16px 40px -32px #172c39aa}.sr-shot-caption{margin-top:12px!important}.sr-shot-caption a{border-bottom:1px solid currentColor}.sr-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.sr-feature{padding:25px 0 0;border-top:1px solid #d6dcda}.sr-feature h3{margin-bottom:12px;font-size:20px}.sr-feature p{font-size:15px;color:var(--sr-muted)}.sr-feature-grid+.sr-split{margin-top:54px}.sr-quote{border-left:2px solid #dc9c89;padding:12px 0 12px 24px;font-size:19px;line-height:1.8}.sr-quote .sr-muted{font-size:14px;margin-top:14px}.sr-section-dark .sr-eyebrow{color:#f3b9a7}.sr-section-dark .sr-muted{color:#b8c8d0}.sr-section-dark video{display:block;width:100%;aspect-ratio:16/9;background:#101c24;border:1px solid #445560;border-radius:12px;box-shadow:0 20px 40px #07141b38}.sr-section-dark .sr-split{align-items:start}.sr-section-dark .sr-button-text{color:#f3b9a7!important}.sr-section-dark .sr-split h3{margin-bottom:17px}.sr-section-dark ul{padding-left:20px;color:#d3dfe5;font-size:15px}.sr-section-dark li+li{margin-top:12px}.sr-section-dark .sr-shot-caption{color:#b8c8d0}.sr-section-dark .sr-shot-caption a{border-bottom:1px solid #79909b}.sr-section .sr-flow+.sr-actions{margin-top:40px}
.sr-faq{border-top:1px solid var(--sr-line)}.sr-faq details{border-bottom:1px solid var(--sr-line);padding:23px 0}.sr-faq summary{position:relative;cursor:pointer;list-style:none;padding-right:40px;font-size:17px;font-weight:550;line-height:1.7}.sr-faq summary::-webkit-details-marker{display:none}.sr-faq summary::after{content:"+";position:absolute;right:5px;top:0;color:#86939a;font-size:23px;font-weight:400}.sr-faq details[open] summary::after{content:"−"}.sr-faq details>p{padding-top:15px;max-width:830px;color:var(--sr-muted);font-size:15px}.sr-faq details>p a{color:var(--sr-coral);text-decoration:underline;text-underline-offset:4px}.sr-cta{padding:70px 0;background:#f8eee7}.sr-cta .sr-shell{display:flex;align-items:center;justify-content:space-between;gap:40px}.sr-cta .sr-muted{margin-top:15px;max-width:600px}.sr-cta .sr-actions{flex-shrink:0;margin-top:0}.sr-footer{padding:38px 0 28px;background:#fff}.sr-footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.sr-footer-links{display:flex;gap:22px;font-size:13px;color:var(--sr-muted)}.sr-footer .sr-brand img{width:145px}.sr-footer>.sr-shell>p,.sr-footer-inner+p{font-size:11px;color:#63717a;margin-top:24px;line-height:1.9}.sr-footer p a{margin-inline:8px}.sr-page footer a:hover{text-decoration:underline;text-underline-offset:4px}
.sr-section-dark .sr-button-secondary{color:#fff!important;border-color:#7c919d}.sr-section-dark .sr-button-secondary:hover{background:#314956}.sr-section-dark #demo-summary>p+p{margin-top:16px}.sr-quote{margin-block:24px!important}.sr-footer-links{flex-wrap:wrap;justify-content:flex-end;max-width:690px}.sr-footer-inner>div>p{font-size:11px;color:#63717a;margin-top:10px}.sr-footer-inner>div>p+p{margin-top:3px}
@media(min-width:1440px){.sr-hero{padding-top:105px;padding-bottom:95px}}
@media(max-width:1050px){.sr-header-inner{gap:20px}.sr-nav{gap:18px}.sr-auth{gap:12px}.sr-brand img{width:148px}.sr-hero-grid{gap:32px}.sr-page h1{font-size:38px}.sr-split{gap:35px}.sr-cta .sr-shell{display:block}.sr-cta .sr-actions{margin-top:26px}.sr-flow{gap:20px}}
@media(max-width:800px){.sr-shell{width:calc(100% - 40px)}.sr-header-inner{min-height:72px}.sr-header .sr-nav,.sr-auth{display:none}.sr-brand img{width:150px}.sr-mobile-menu{display:block}.sr-mobile-menu>summary{cursor:pointer;list-style:none;border:1px solid #d4dbdc;border-radius:6px;padding:6px 14px;font-size:13px}.sr-mobile-menu>summary::-webkit-details-marker{display:none}.sr-mobile-menu>nav{position:absolute;left:0;right:0;top:100%;background:#fff;padding:16px 20px 24px;border-bottom:1px solid #dce1e3;box-shadow:0 18px 24px #18283214;display:grid;gap:2px}.sr-mobile-menu nav>a{display:block;padding:10px 12px;font-size:15px;border-radius:5px}.sr-mobile-menu nav>a[aria-current]{background:#fbf0eb;color:var(--sr-coral)}.sr-hero{padding:52px 0 54px}.sr-hero-grid{grid-template-columns:1fr;gap:42px}.sr-page h1{font-size:clamp(34px,6.5vw,46px)}.sr-hero-visual{max-width:600px;width:100%;margin:auto!important}.sr-hero-visual::before{inset:-17px -8px 21px 24px}.sr-lead{max-width:560px}.sr-section{padding:60px 0}.sr-section-heading{margin-bottom:32px}.sr-flow{grid-template-columns:repeat(2,1fr);gap:28px}.sr-split{grid-template-columns:1fr;gap:34px}.sr-shot{max-width:650px}.sr-feature-grid{gap:24px}.sr-feature h3{font-size:18px}.sr-feature p{font-size:14px}.sr-feature-grid+.sr-split{margin-top:40px}.sr-section-dark .sr-split{gap:28px}.sr-cta{padding:48px 0}.sr-footer-inner{flex-wrap:wrap}.sr-footer-links{flex-wrap:wrap;gap:14px 22px}.sr-footer p a{display:inline-block;margin-left:0}}
@media(max-width:480px){.sr-page{font-size:15px}.sr-shell{width:calc(100% - 36px)}.sr-page h1{font-size:34px;letter-spacing:-.055em}.sr-page h2{font-size:29px}.sr-kicker{font-size:11px}.sr-lead{font-size:15px}.sr-actions{gap:10px}.sr-actions .sr-button{font-size:14px;padding:12px 17px;min-height:47px}.sr-hero-copy>.sr-muted{font-size:11px}.sr-feature-grid{grid-template-columns:1fr;gap:25px}.sr-feature{padding-top:20px}.sr-flow{gap:25px 20px}.sr-flow-step h3{font-size:16px}.sr-flow-step p{font-size:13px}.sr-step-index{margin-bottom:15px}.sr-channel-list{gap:18px 14px}.sr-channel-list strong{font-size:13px}.sr-channel-list span{font-size:11px}.sr-faq summary{font-size:15px}.sr-faq details>p{font-size:14px}.sr-quote{font-size:17px}.sr-footer-inner{display:block}.sr-footer-links{margin-top:20px}}
/* Learning guide: readable documents, persistent section navigation. */
.sr-tutorial-hero { padding: 62px 0 44px; background: var(--sr-soft); border-bottom: 1px solid #e9e5df; }
.sr-tutorial-hero h1 { font-size: clamp(34px, 4vw, 50px); }
.sr-tutorial-hero .sr-lead { max-width: 760px; margin-top: 18px !important; }
.sr-tutorial-hero .sr-actions { margin-top: 22px; }
.sr-tutorial-hero > .sr-shell > .sr-muted { margin-top: 16px; max-width: 850px; font-size: 14px; }
.sr-tutorial-hero .sr-search { max-width: 820px; margin-top: 26px; margin-bottom: 0; background: #ffffffb8; }
.sr-learning-layout { display: grid; grid-template-columns: 218px minmax(0, 1fr); gap: 68px; align-items: start; padding-top: 48px; padding-bottom: 80px; }
.sr-toc { position: sticky; top: 116px; border-right: 1px solid var(--sr-line); padding-right: 23px; }
.sr-toc > p, .sr-toc h2 { font-size: 12px; letter-spacing: .08em; color: var(--sr-muted); margin-bottom: 16px; }
.sr-toc nav { display: grid; gap: 5px; }
.sr-toc nav a { display: block; padding: 9px 10px; border-radius: 5px; font-size: 13px; line-height: 1.65; color: #5c6b75; }
.sr-toc nav a:hover, .sr-toc nav a[aria-current] { color: #a94332; background: #faf0ea; }
.sr-toc > .sr-muted { font-size: 11px; margin-top: 20px; padding-inline: 10px; }
.sr-lessons { min-width: 0; }
.sr-search { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 12px; padding: 23px; margin-bottom: 52px; background: #f7f8f8; border: 1px solid #e1e6e7; border-radius: 10px; }
.sr-search[hidden] { display: none; }
.sr-search label { grid-column: 1 / -1; font-size: 15px; font-weight: 600; }
.sr-search input { min-width: 0; width: 100%; border: 1px solid #bdc8cc; border-radius: 5px; background: #fff; color: var(--sr-ink); padding: 11px 13px; font-size: 14px; appearance: none; }
.sr-search input::placeholder { color: #697981; opacity: 1; }
.sr-search button { padding: 9px 14px; background: #fff; border: 1px solid #bdc8cc; border-radius: 5px; color: #425763; cursor: pointer; font-size: 13px; }
.sr-search [data-search-status], .sr-search [data-search-results] { grid-column: 1 / -1; }
.sr-search [data-search-status] { color: var(--sr-muted); font-size: 12px; line-height: 1.75; }
.sr-search-results { margin: 0; padding: 0; list-style: none; border-top: 1px solid #dae1e4; }
.sr-search-results li + li { border-top: 1px solid #e1e6e7; }
.sr-search-results a { display: block; padding: 14px 2px; }
.sr-search-results strong { display: block; font-size: 14px; color: #a94332; }
.sr-search-results span { display: block; color: var(--sr-muted); font-size: 12px; margin-top: 3px; }
.sr-lesson { padding-bottom: 48px; margin-bottom: 48px; border-bottom: 1px solid var(--sr-line); }
.sr-lesson:last-child { margin-bottom: 0; border-bottom: 0; padding-bottom: 0; }
.sr-lesson-number { display: block; color: var(--sr-coral); font-size: 12px; font-weight: 600; letter-spacing: .1em; margin-bottom: 9px; }
.sr-lesson h2 { font-size: 29px; letter-spacing: -.025em; }
.sr-lesson h3 { font-size: 18px; margin-top: 28px; margin-bottom: 12px; }
.sr-lesson-lead { color: var(--sr-muted); margin-top: 15px !important; margin-bottom: 24px !important; font-size: 15px; }
.sr-steps { margin: 23px 0; padding-left: 24px; }
.sr-steps > li { padding-left: 6px; margin-top: 18px; font-size: 15px; color: #4c5e6a; line-height: 1.9; }
.sr-steps > li::marker { color: #a94332; font-weight: 600; }
.sr-steps strong { color: var(--sr-ink); font-weight: 600; }
.sr-steps li > p { margin-top: 6px; }
.sr-lesson a:not(.sr-image-button):not(.sr-button) { text-decoration: underline; text-underline-offset: 4px; color: #a94332; }
.sr-lesson code { background: #f0f3f4; border: 1px solid #e2e8ea; border-radius: 4px; padding: 2px 5px; color: #34515e; font-size: .9em; overflow-wrap: anywhere; }
.sr-lesson .sr-shot { margin-top: 28px; }
.sr-image-button { display: block; cursor: zoom-in; border-radius: 10px; }
.sr-image-button:hover img { border-color: #adbaC0; }
.sr-callout, .sr-check { border-left: 3px solid #d7a18c; background: #fbf5f0; padding: 17px 20px; margin-top: 24px; color: #69584d; font-size: 14px; line-height: 1.9; }
.sr-check { background: #f2f6f5; border-color: #84a198; color: #415f56; }
.sr-callout strong, .sr-check strong { display: block; color: inherit; margin-bottom: 4px; }
.sr-callout p + p, .sr-check p + p { margin-top: 10px; }
.sr-callout ul, .sr-check ul { padding-left: 20px; margin: 8px 0 0; }
.sr-table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid #dfe5e5; border-radius: 8px; }
.sr-lesson table { width: 100%; border-collapse: collapse; font-size: 13px; line-height: 1.8; }
.sr-lesson th, .sr-lesson td { text-align: left; vertical-align: top; padding: 13px 16px; border-bottom: 1px solid #e2e7e7; }
.sr-lesson th { background: #f4f6f6; color: #344c59; font-weight: 600; white-space: nowrap; }
.sr-lesson td { color: #52646f; }
.sr-lesson tr:last-child td { border-bottom: 0; }
.sr-reference { margin-top: 22px !important; font-size: 12px; color: #697981; line-height: 1.85; }
.sr-reference a { overflow-wrap: anywhere; }
.sr-image-dialog { padding: 0; border: 0; border-radius: 12px; background: #fff; width: min(1100px, calc(100vw - 40px)); max-width: none; max-height: calc(100dvh - 50px); box-shadow: 0 20px 80px #0005; overflow: auto; }
.sr-image-dialog::backdrop { background: #102430c9; backdrop-filter: blur(3px); }
.sr-dialog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 18px; border-bottom: 1px solid #e4e9ea; position: sticky; top: 0; background: #fff; }
.sr-dialog-toolbar p { font-size: 13px; color: #52646f; }
.sr-dialog-close { flex-shrink: 0; border: 1px solid #bac7cd; border-radius: 5px; background: #fff; color: #273e4a; padding: 7px 12px; cursor: pointer; font: inherit; font-size: 13px; }
.sr-image-dialog > img { margin: auto; max-height: calc(100dvh - 140px); width: auto; max-width: 100%; object-fit: contain; }
.sr-dialog-open { overflow: hidden; }
@media(max-width:1050px) { .sr-learning-layout { grid-template-columns: 185px minmax(0, 1fr); gap: 35px; } }
@media(max-width:800px) {
  .sr-tutorial-hero { padding: 40px 0 34px; }
  .sr-learning-layout { display: block; padding-top: 28px; padding-bottom: 50px; }
  .sr-toc { position: static; border: 1px solid #e1e6e7; border-radius: 8px; padding: 18px; margin-bottom: 28px; }
  .sr-toc nav { grid-template-columns: 1fr 1fr; gap: 3px 9px; }
  .sr-toc > .sr-muted { margin-top: 12px; }
  .sr-search { margin-bottom: 35px; }
  .sr-lesson { margin-bottom: 35px; padding-bottom: 35px; }
  .sr-lesson h2 { font-size: 26px; }
}
@media(max-width:480px) {
  .sr-tutorial-hero .sr-lead { font-size: 14px; }
  .sr-toc { padding: 14px 10px; }
  .sr-toc nav a { font-size: 12px; padding: 8px; }
  .sr-search { padding: 17px; gap: 10px; }
  .sr-search input { font-size: 12px; padding: 11px; }
  .sr-search button { padding-inline: 11px; font-size: 12px; }
  .sr-search label { font-size: 14px; }
  .sr-lesson h2 { font-size: 24px; }
  .sr-lesson-lead, .sr-steps > li { font-size: 14px; }
  .sr-lesson h3 { font-size: 17px; }
  .sr-callout, .sr-check { padding: 14px 16px; font-size: 13px; }
  .sr-lesson th, .sr-lesson td { padding: 10px; font-size: 12px; min-width: 80px; }
  .sr-image-dialog { width: calc(100vw - 20px); max-height: calc(100dvh - 30px); }
  .sr-dialog-toolbar { padding: 10px 12px; gap: 12px; }
  .sr-dialog-toolbar p { font-size: 11px; }
}
@media(prefers-reduced-motion:reduce){.sr-page *{scroll-behavior:auto!important;transition:none!important}}