:root {
  --ink: #0c1718;
  --muted: #617073;
  --line: #dfe7e5;
  --paper: #f4f7f6;
  --white: #ffffff;
  --dark: #061416;
  --dark-soft: #0c2325;
  --lime: #b7f34a;
  --lime-deep: #89c921;
  --yellow: #ffd550;
  --red: #ef4d42;
  --shadow: 0 22px 60px rgba(7, 28, 30, .12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.modal-open { overflow: hidden; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
.shell { width: min(1180px, calc(100% - 44px)); margin: 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 12px 18px;
  border-radius: 10px; background: var(--lime); color: #071212; font-weight: 800;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 100; height: 76px;
  background: rgba(6, 20, 22, .92); color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(16px);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.brand-mark {
  width: 39px; height: 39px; display: grid; place-items: center;
  border-radius: 12px; color: #071212; background: var(--lime);
  box-shadow: 0 8px 24px rgba(183,243,74,.2);
}
.brand-mark svg { width: 24px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.brand > span:last-child { display: grid; line-height: 1; gap: 5px; }
.brand b { font-size: 18px; letter-spacing: .1em; }
.brand small { font-size: 8px; letter-spacing: .16em; color: rgba(255,255,255,.56); }
.desktop-nav { display: flex; align-items: center; gap: 34px; margin-left: auto; }
.desktop-nav a { font-size: 14px; color: rgba(255,255,255,.72); transition: .2s ease; }
.desktop-nav a:hover { color: var(--lime); }
.header-alert {
  border: 1px solid rgba(183,243,74,.45); border-radius: 999px; padding: 9px 15px;
  background: rgba(183,243,74,.08); color: var(--lime); cursor: pointer; font-weight: 700; font-size: 13px;
}
.header-alert span { display: inline-grid; place-items: center; width: 18px; height: 18px; margin-right: 5px; border-radius: 50%; background: var(--lime); color: #081415; }

.hero { min-height: 730px; position: relative; overflow: hidden; background: var(--dark); color: var(--white); }
.hero-grid {
  position: absolute; inset: 0; opacity: .14;
  background-image: linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, #000, transparent 76%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.hero-glow-one { width: 620px; height: 620px; right: -160px; top: -180px; background: radial-gradient(circle, rgba(70,166,139,.24), transparent 68%); }
.hero-glow-two { width: 420px; height: 420px; left: 34%; bottom: -280px; background: radial-gradient(circle, rgba(183,243,74,.15), transparent 70%); }
.hero-inner { min-height: 654px; display: grid; grid-template-columns: 1.07fr .93fr; align-items: center; gap: 88px; position: relative; z-index: 1; padding: 68px 0 72px; }
.eyebrow, .section-kicker { font-size: 12px; letter-spacing: .15em; font-weight: 850; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; color: var(--lime); margin-bottom: 24px; }
.eyebrow span { width: 31px; height: 2px; background: var(--lime); }
.hero h1 { margin: 0; max-width: 630px; font-size: clamp(48px, 5vw, 72px); line-height: 1.08; letter-spacing: -.045em; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-lead { margin: 26px 0 30px; max-width: 610px; color: rgba(255,255,255,.67); line-height: 1.85; font-size: 16px; }
.hero-search {
  height: 64px; max-width: 626px; padding: 7px 7px 7px 20px; display: flex; align-items: center; gap: 12px;
  background: var(--white); border-radius: 14px; box-shadow: 0 16px 50px rgba(0,0,0,.25);
}
.hero-search svg, .library-search svg { width: 22px; fill: none; stroke: #6d7c7d; stroke-width: 1.8; stroke-linecap: round; }
.hero-search input { min-width: 0; flex: 1; border: 0; outline: 0; color: var(--ink); background: transparent; }
.hero-search input::placeholder { color: #9aa5a5; }
.hero-search button {
  align-self: stretch; border: 0; border-radius: 10px; padding: 0 24px; background: var(--lime); color: #091314;
  font-weight: 850; cursor: pointer; transition: .2s ease;
}
.hero-search button:hover { background: #c7ff60; transform: translateX(1px); }
.quick-models { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 14px; color: rgba(255,255,255,.44); font-size: 12px; }
.quick-models button { border: 0; padding: 0; color: rgba(255,255,255,.72); background: transparent; cursor: pointer; border-bottom: 1px dashed rgba(255,255,255,.32); }
.quick-models button:hover { color: var(--lime); }
.hero-metrics { display: flex; align-items: center; gap: 0; margin-top: 42px; }
.hero-metrics div { display: flex; align-items: baseline; gap: 9px; min-width: 125px; padding-right: 26px; margin-right: 26px; border-right: 1px solid rgba(255,255,255,.13); }
.hero-metrics div:last-child { border: 0; margin: 0; }
.hero-metrics b { font-size: 29px; color: var(--white); }
.hero-metrics span { font-size: 12px; color: rgba(255,255,255,.47); }

.hero-visual { min-height: 530px; position: relative; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(183,243,74,.16); border-radius: 50%; }
.orbit-one { width: 458px; height: 458px; }
.orbit-two { width: 350px; height: 350px; border-style: dashed; animation: spin 36s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.phone-card {
  width: 276px; height: 516px; position: relative; z-index: 2; overflow: hidden; padding: 10px;
  border-radius: 38px; background: #132629; border: 1px solid rgba(255,255,255,.18); transform: rotate(4deg);
  box-shadow: 0 40px 80px rgba(0,0,0,.48), inset 0 0 0 2px rgba(0,0,0,.4);
}
.phone-card > img { width: 100%; height: 100%; object-fit: cover; border-radius: 29px; filter: saturate(.86) contrast(1.05); }
.phone-card::after { content: ""; position: absolute; inset: 10px; border-radius: 29px; background: linear-gradient(180deg, rgba(0,0,0,.08), transparent 45%, rgba(0,0,0,.76)); pointer-events: none; }
.phone-speaker { position: absolute; width: 72px; height: 18px; z-index: 4; left: 50%; top: 18px; transform: translateX(-50%); border-radius: 0 0 12px 12px; background: #081113; }
.phone-overlay { position: absolute; left: 31px; right: 31px; bottom: 50px; z-index: 5; display: flex; align-items: center; gap: 12px; }
.phone-overlay button { width: 51px; height: 51px; flex: none; display: grid; place-items: center; border: 0; border-radius: 50%; color: #091314; background: var(--lime); cursor: pointer; box-shadow: 0 10px 35px rgba(183,243,74,.28); }
.phone-overlay svg { width: 24px; fill: currentColor; }
.phone-overlay span { font-size: 13px; font-weight: 750; }
.phone-progress { position: absolute; left: 30px; right: 30px; bottom: 28px; z-index: 5; height: 3px; background: rgba(255,255,255,.25); }
.phone-progress span { display: block; width: 40%; height: 100%; background: var(--lime); }
.float-card { position: absolute; z-index: 5; display: flex; align-items: center; gap: 11px; min-width: 210px; padding: 14px; color: var(--ink); background: rgba(255,255,255,.96); border-radius: 14px; box-shadow: var(--shadow); }
.float-card-top { top: 86px; left: -10px; }
.float-card-bottom { right: -24px; bottom: 80px; }
.float-card b, .float-card small { display: block; }
.float-card b { font-size: 12px; }
.float-card small { margin-top: 4px; color: #778484; font-size: 10px; }
.float-icon { width: 33px; height: 33px; display: grid; place-items: center; flex: none; border-radius: 9px; background: #e9f9cd; color: #4d8011; font-size: 11px; font-weight: 900; }
.float-icon.success { color: #2e7d57; background: #e0f5eb; font-size: 18px; }

.safety-strip { background: var(--lime); }
.safety-strip-inner { min-height: 74px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 17px; }
.safety-icon { width: 37px; height: 37px; display: grid; place-items: center; border-radius: 50%; color: var(--lime); background: var(--dark); font-weight: 900; }
.safety-strip-inner div { display: flex; align-items: center; gap: 13px; min-width: 0; }
.safety-strip b { font-size: 14px; white-space: nowrap; }
.safety-strip span:not(.safety-icon) { color: #40511f; font-size: 13px; }
.safety-strip button { border: 0; padding: 10px 0; background: transparent; font-size: 13px; font-weight: 850; cursor: pointer; border-bottom: 1px solid rgba(7,20,22,.35); }

.section { padding: 104px 0; }
.section-heading { max-width: 670px; }
.section-heading.centered { margin: 0 auto 55px; text-align: center; }
.section-kicker { display: block; margin-bottom: 13px; color: #6aa20f; }
.section-kicker.light { color: var(--lime); }
.section-heading h2, .test-copy h2, .aftercare-intro h2 { margin: 0; font-size: clamp(34px, 4vw, 48px); line-height: 1.18; letter-spacing: -.04em; }
.section-heading p { margin: 15px 0 0; color: var(--muted); line-height: 1.75; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step-card { min-height: 250px; position: relative; padding: 30px 25px 25px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--white); transition: .25s ease; }
.step-card:hover { transform: translateY(-5px); border-color: rgba(137,201,33,.55); box-shadow: 0 18px 45px rgba(12,36,36,.08); }
.step-number { position: absolute; right: 19px; top: 15px; color: #eff3f2; font-size: 52px; line-height: 1; font-weight: 900; letter-spacing: -.08em; }
.step-icon { width: 54px; height: 54px; display: grid; place-items: center; position: relative; border-radius: 15px; color: #568510; background: #effbdc; }
.step-icon svg { width: 27px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.step-card h3 { margin: 27px 0 10px; font-size: 17px; }
.step-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

.tutorial-section { background: var(--paper); }
.tutorial-heading { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 39px; }
.library-search { width: 310px; flex: none; }
.library-search label { display: block; margin-bottom: 8px; font-size: 12px; font-weight: 750; color: #425051; }
.library-search > div { height: 48px; display: flex; align-items: center; gap: 10px; padding: 0 14px; border: 1px solid #d7e0de; border-radius: 11px; background: var(--white); }
.library-search svg { width: 19px; }
.library-search input { flex: 1; min-width: 0; border: 0; outline: none; font-size: 13px; background: transparent; }
.library-search button { display: none; border: 0; background: transparent; color: #869392; cursor: pointer; font-size: 22px; }
.library-search.has-value button { display: block; }
.filter-row { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-bottom: 27px; }
.filter-pill { padding: 9px 16px; border: 1px solid #d5dfdc; border-radius: 999px; background: var(--white); color: #4f5d5d; font-size: 12px; cursor: pointer; transition: .2s ease; }
.filter-pill:hover, .filter-pill.active { color: var(--white); border-color: var(--dark); background: var(--dark); }
.result-count { margin-left: auto; color: #7b8887; font-size: 12px; }
.tutorial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tutorial-card { overflow: hidden; border: 1px solid #dce4e2; border-radius: var(--radius); background: var(--white); transition: .25s ease; }
.tutorial-card:hover { transform: translateY(-5px); border-color: #c8d7d2; box-shadow: var(--shadow); }
.card-media { height: 214px; position: relative; overflow: hidden; background: #132426; cursor: pointer; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.tutorial-card:hover .card-media img { transform: scale(1.035); }
.card-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5,15,16,.03), rgba(5,15,16,.67)); }
.card-code { position: absolute; left: 16px; top: 15px; z-index: 2; padding: 6px 9px; border-radius: 7px; color: var(--lime); background: rgba(4,16,17,.78); backdrop-filter: blur(6px); font-size: 10px; letter-spacing: .08em; font-weight: 850; }
.card-play { position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; color: #071212; background: rgba(183,243,74,.94); box-shadow: 0 10px 30px rgba(0,0,0,.22); }
.card-play svg { width: 23px; fill: currentColor; }
.card-model-count { position: absolute; right: 16px; bottom: 14px; z-index: 2; color: var(--white); font-size: 11px; }
.card-body { padding: 22px 22px 20px; }
.card-eyebrow { color: #6d9d21; font-size: 10px; letter-spacing: .08em; font-weight: 850; }
.card-body h3 { margin: 8px 0 12px; font-size: 18px; line-height: 1.45; }
.model-chips { min-height: 56px; display: flex; align-content: flex-start; flex-wrap: wrap; gap: 6px; }
.model-chip { padding: 5px 8px; border: 0; border-radius: 6px; background: #f1f5f3; color: #5c6867; cursor: pointer; font-family: inherit; font-size: 10px; text-align: left; }
.model-chip.match { color: #355e05; background: #e7f8c8; font-weight: 750; }
.more-chip { padding: 5px 2px; color: #8a9594; font-size: 10px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 18px; padding-top: 15px; border-top: 1px solid #edf1f0; }
.screen-badges { display: flex; gap: 8px; }
.screen-badges span { display: inline-flex; align-items: center; gap: 4px; color: #71807e; font-size: 10px; }
.screen-badges span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--lime-deep); }
.card-open { border: 0; background: transparent; color: #203131; font-size: 12px; font-weight: 850; cursor: pointer; }
.card-open span { color: #6c9f19; }
.empty-state { padding: 78px 20px; text-align: center; border: 1px dashed #cbd5d3; border-radius: var(--radius); background: rgba(255,255,255,.5); }
.empty-state > span { font-size: 42px; color: #96a19f; }
.empty-state h3 { margin: 12px 0 8px; }
.empty-state p { margin: 0 0 21px; color: var(--muted); font-size: 13px; }
.empty-state button { padding: 10px 17px; border: 0; border-radius: 9px; background: var(--dark); color: var(--white); cursor: pointer; }

.test-first { overflow: hidden; background: var(--dark-soft); color: var(--white); }
.test-first-grid { display: grid; grid-template-columns: 1fr .93fr; align-items: center; gap: 92px; }
.test-copy h2 { margin-top: 14px; font-size: clamp(40px, 4.5vw, 57px); }
.test-copy > p { max-width: 570px; margin: 25px 0; color: rgba(255,255,255,.62); line-height: 1.9; }
.test-copy ul { list-style: none; margin: 0 0 31px; padding: 0; display: grid; gap: 13px; }
.test-copy li { display: flex; align-items: center; gap: 11px; color: rgba(255,255,255,.85); font-size: 13px; }
.test-copy li span { width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; background: rgba(183,243,74,.14); color: var(--lime); font-size: 11px; }
.outline-button { padding: 12px 18px; border: 1px solid rgba(183,243,74,.55); border-radius: 10px; background: transparent; color: var(--lime); cursor: pointer; font-weight: 750; }
.notice-image { min-height: 430px; position: relative; overflow: hidden; padding: 20px; border: 1px solid rgba(255,255,255,.15); border-radius: 24px; background: #e8ebe7; cursor: zoom-in; box-shadow: 0 35px 70px rgba(0,0,0,.32); transform: rotate(1.5deg); }
.notice-image img { width: 100%; height: 390px; object-fit: contain; background: #fff; }
.notice-image > span { position: absolute; left: 34px; bottom: 32px; display: grid; gap: 2px; padding: 10px 13px; text-align: left; border-radius: 9px; background: rgba(5,18,20,.86); }
.notice-image b { font-size: 12px; }
.notice-image small { color: rgba(255,255,255,.62); font-size: 9px; }

.aftercare-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: start; gap: 100px; }
.aftercare-intro h2 { margin-top: 13px; }
.aftercare-intro > p { margin: 20px 0 25px; color: var(--muted); line-height: 1.8; }
.aftercare-note { display: flex; gap: 10px; padding: 15px; border-radius: 12px; background: #f2f7e9; color: #506235; font-size: 12px; line-height: 1.65; }
.aftercare-note > span { width: 20px; height: 20px; display: grid; place-items: center; flex: none; border-radius: 50%; color: var(--white); background: #7cac2f; font-weight: 800; font-family: serif; }
.aftercare-list { border-top: 1px solid var(--line); }
.aftercare-list article { display: grid; grid-template-columns: 74px 1fr; gap: 25px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.aftercare-list article > span { color: #a8b3b0; font-size: 13px; font-weight: 800; }
.aftercare-list h3 { margin: 0 0 8px; font-size: 18px; }
.aftercare-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

.final-cta { padding: 58px 0; color: var(--white); background: #10292b; }
.final-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.final-cta span { color: var(--lime); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.final-cta h2 { margin: 7px 0 0; font-size: 29px; }
.final-cta button { padding: 15px 23px; border: 0; border-radius: 11px; color: #091314; background: var(--lime); cursor: pointer; font-weight: 850; }
.site-footer { padding: 35px 0; color: rgba(255,255,255,.6); background: var(--dark); border-top: 1px solid rgba(255,255,255,.08); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-brand { color: var(--white); }
.footer-inner p { max-width: 560px; margin: 0 auto; font-size: 11px; line-height: 1.65; text-align: center; }
.footer-inner > button { border: 0; background: transparent; color: var(--lime); font-size: 12px; cursor: pointer; }

.modal { position: fixed; inset: 0; z-index: 1000; padding: 22px; display: grid; place-items: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2,10,11,.78); backdrop-filter: blur(8px); }
.modal-close { width: 36px; height: 36px; position: absolute; z-index: 4; top: 16px; right: 16px; display: grid; place-items: center; border: 0; border-radius: 50%; color: #586564; background: #eef2f1; cursor: pointer; font-size: 22px; }
.safety-dialog { width: min(820px, 100%); max-height: calc(100vh - 44px); position: relative; z-index: 1; overflow: auto; border-radius: 23px; background: var(--white); box-shadow: 0 35px 100px rgba(0,0,0,.48); }
.safety-head { display: flex; align-items: center; gap: 18px; padding: 27px 32px 22px; border-bottom: 1px solid var(--line); }
.warning-mark { width: 53px; height: 53px; display: grid; place-items: center; flex: none; border-radius: 15px; color: #fff; background: var(--red); font-size: 28px; font-weight: 950; box-shadow: 0 10px 25px rgba(239,77,66,.24); }
.safety-head span:not(.warning-mark) { color: #d8473e; font-size: 9px; letter-spacing: .15em; font-weight: 850; }
.safety-head h2 { margin: 3px 0 2px; font-size: 28px; }
.safety-head p { margin: 0; color: var(--muted); font-size: 12px; }
.safety-body { padding: 23px 32px 27px; }
.safety-full-copy { color: #4f5e5d; }
.safety-copy-items p { margin: 0; padding: 14px 0; border-top: 1px solid #e4eae8; font-size: 13px; line-height: 2; text-align: justify; }
.safety-copy-items p:first-child { border-top: 0; padding-top: 0; }
.safety-copy-items p:last-child { padding-bottom: 0; }
.safety-body strong { font-weight: 750; }
.safety-body .safety-emphasis { color: #df332d; font-weight: 850; }
.safety-confirm { position: sticky; bottom: 0; padding: 17px 32px 21px; background: #f5f8f7; border-top: 1px solid var(--line); }
.safety-confirm label { display: flex; align-items: center; gap: 9px; margin-bottom: 12px; color: #485554; font-size: 12px; cursor: pointer; }
.safety-confirm input { position: absolute; opacity: 0; pointer-events: none; }
.custom-check { width: 19px; height: 19px; display: grid; place-items: center; border: 1px solid #bbc6c3; border-radius: 5px; color: transparent; background: #fff; font-size: 11px; }
.safety-confirm input:checked + .custom-check { color: #071313; border-color: var(--lime-deep); background: var(--lime); font-weight: 900; }
.safety-confirm button { width: 100%; padding: 14px; border: 0; border-radius: 10px; background: var(--lime); color: #071313; cursor: pointer; font-weight: 850; }
.safety-confirm button:disabled { color: #8b9593; background: #e0e5e3; cursor: not-allowed; }
.safety-modal.is-forced .safety-close { display: none; }

.tutorial-dialog { width: min(1050px, 100%); max-height: calc(100vh - 44px); position: relative; z-index: 1; display: grid; grid-template-columns: 1.18fr .82fr; overflow: hidden; border-radius: 23px; background: var(--white); box-shadow: 0 35px 100px rgba(0,0,0,.48); }
.tutorial-player-wrap { min-height: 600px; position: relative; display: grid; place-items: center; overflow: hidden; background: #020707; }
.tutorial-player-wrap video { width: 100%; height: 100%; max-height: calc(100vh - 44px); object-fit: contain; background: #000; }
.player-placeholder { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 10px; color: rgba(255,255,255,.65); background: #071214; pointer-events: none; }
.player-placeholder span { width: 60px; height: 60px; display: grid; place-items: center; border-radius: 50%; color: #061112; background: var(--lime); }
.player-placeholder svg { width: 28px; fill: currentColor; }
.player-placeholder b { font-size: 12px; }
.player-placeholder.retryable { pointer-events: auto; }
.player-placeholder button { padding: 9px 15px; border: 1px solid rgba(183,243,74,.55); border-radius: 999px; color: var(--lime); background: rgba(183,243,74,.08); cursor: pointer; font-size: 11px; font-weight: 800; }
.player-placeholder button:hover { background: rgba(183,243,74,.16); }
.tutorial-panel { max-height: calc(100vh - 44px); overflow: auto; padding: 36px 31px 28px; }
.tutorial-eyebrow { color: #78a72e; font-size: 10px; font-weight: 850; letter-spacing: .1em; }
.tutorial-panel h2 { margin: 8px 42px 24px 0; font-size: 25px; line-height: 1.35; }
.select-row label { display: block; margin-bottom: 7px; color: #586563; font-size: 11px; font-weight: 750; }
.select-wrap { height: 44px; position: relative; border: 1px solid #d8e0de; border-radius: 9px; }
.select-wrap select { width: 100%; height: 100%; padding: 0 38px 0 13px; appearance: none; border: 0; outline: 0; background: transparent; font-size: 13px; }
.select-wrap svg { width: 17px; position: absolute; right: 12px; top: 50%; transform: translateY(-50%); fill: none; stroke: #6d7978; stroke-width: 1.8; pointer-events: none; }
.screen-type { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 17px; }
.screen-type button { min-height: 68px; display: grid; grid-template-columns: 28px 1fr; grid-template-rows: auto auto; align-content: center; column-gap: 8px; padding: 8px 10px; text-align: left; border: 1px solid #dce3e1; border-radius: 10px; background: #fff; cursor: pointer; }
.screen-type button > span { grid-row: 1 / 3; align-self: center; color: #84908e; font-size: 23px; }
.screen-type b { font-size: 12px; }
.screen-type small { margin-top: 2px; color: #8a9694; font-size: 9px; }
.screen-type button.active { border-color: #8fbf3d; background: #f1f9e5; box-shadow: inset 0 0 0 1px #8fbf3d; }
.screen-type button.active > span { color: #6e9c25; }
.video-parts { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.video-parts:empty { display: none; }
.video-parts button { padding: 6px 10px; border: 1px solid #d8e0de; border-radius: 7px; color: #677472; background: #fff; font-size: 10px; cursor: pointer; }
.video-parts button.active { color: #fff; border-color: var(--dark-soft); background: var(--dark-soft); }
.current-video { display: flex; align-items: center; gap: 11px; margin-top: 16px; padding: 12px; border-radius: 10px; background: #f3f6f5; }
.current-video > span { width: 38px; height: 38px; display: grid; place-items: center; flex: none; border-radius: 9px; color: #355405; background: #e5f7c5; font-size: 11px; font-weight: 900; }
.current-video b, .current-video small { display: block; }
.current-video b { font-size: 11px; }
.current-video small { margin-top: 3px; color: #85918f; font-size: 9px; }
.tutorial-warning { display: flex; gap: 10px; margin-top: 15px; padding: 12px; border: 1px solid #f2dfaa; border-radius: 10px; background: #fff9e8; }
.tutorial-warning > span { width: 21px; height: 21px; display: grid; place-items: center; flex: none; border-radius: 50%; color: #fff; background: #e2a826; font-size: 11px; font-weight: 900; }
.tutorial-warning p { margin: 0; color: #7b6530; font-size: 10px; line-height: 1.65; }
.copy-link { width: 100%; margin-top: 13px; padding: 11px; border: 1px solid #d7dfdd; border-radius: 9px; background: #fff; color: #41504e; font-size: 11px; cursor: pointer; }
.image-dialog { width: min(850px, 100%); max-height: calc(100vh - 44px); position: relative; z-index: 1; overflow: auto; padding: 16px; border-radius: 20px; background: #fff; box-shadow: 0 35px 100px rgba(0,0,0,.48); }
.image-dialog img { width: 100%; height: auto; }

@media (max-width: 1020px) {
  .desktop-nav { display: none; }
  .hero-inner { grid-template-columns: 1fr .75fr; gap: 35px; }
  .hero-visual { transform: scale(.84); margin: 0 -35px; }
  .tutorial-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .test-first-grid { gap: 50px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 68px; }
  .shell { width: min(100% - 30px, 600px); }
  .site-header { height: 67px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
  .brand-mark svg { width: 21px; }
  .brand b { font-size: 16px; }
  .brand small { font-size: 7px; }
  .header-alert { padding: 8px 11px; font-size: 11px; }
  .header-alert span { width: 16px; height: 16px; }
  .hero { min-height: auto; }
  .hero-inner { display: block; min-height: auto; padding: 65px 0 58px; }
  .hero-copy { position: relative; z-index: 2; }
  .hero h1 { font-size: clamp(42px, 13vw, 59px); line-height: 1.1; }
  .hero-lead { margin: 21px 0 24px; font-size: 14px; }
  .hero-search { height: auto; min-height: 58px; flex-wrap: wrap; padding: 8px 8px 8px 15px; }
  .hero-search input { width: calc(100% - 38px); height: 40px; }
  .hero-search button { width: 100%; height: 44px; }
  .hero-metrics { margin-top: 33px; }
  .hero-metrics div { min-width: 0; flex: 1; display: grid; gap: 3px; margin-right: 14px; padding-right: 14px; }
  .hero-metrics b { font-size: 25px; }
  .hero-visual { display: none; }
  .safety-strip-inner { grid-template-columns: auto 1fr; gap: 12px; padding: 16px 0; }
  .safety-strip-inner div { display: grid; gap: 4px; }
  .safety-strip-inner div span { line-height: 1.55; }
  .safety-strip button { grid-column: 2; justify-self: start; }
  .section { padding: 75px 0; }
  .section-heading.centered { margin-bottom: 36px; }
  .section-heading h2, .test-copy h2, .aftercare-intro h2 { font-size: 35px; }
  .steps-grid { grid-template-columns: 1fr; }
  .tutorial-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .step-card { min-height: 210px; }
  .tutorial-heading { display: block; }
  .library-search { width: 100%; margin-top: 27px; }
  .filter-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 5px; scrollbar-width: none; }
  .filter-row::-webkit-scrollbar { display: none; }
  .filter-pill { flex: none; }
  .result-count { display: none; }
  .tutorial-card { border-radius: 14px; }
  .card-media { height: auto; aspect-ratio: 4 / 3; }
  .card-code { left: 8px; top: 8px; padding: 4px 6px; border-radius: 5px; font-size: 8px; }
  .card-play { width: 40px; height: 40px; }
  .card-play svg { width: 18px; }
  .card-model-count { right: 8px; bottom: 8px; font-size: 8px; }
  .card-body { padding: 12px 11px; }
  .card-eyebrow { font-size: 8px; }
  .card-body h3 { min-height: 3.8em; margin: 6px 0 9px; font-size: 13px; line-height: 1.28; }
  .model-chips { min-height: 46px; max-height: none; gap: 4px; overflow: visible; }
  .model-chip { padding: 4px 5px; border-radius: 5px; font-size: 8px; }
  .more-chip { padding: 4px 1px; font-size: 8px; }
  .card-footer { display: block; margin-top: 10px; padding-top: 9px; }
  .screen-badges { display: none; }
  .card-open { width: 100%; text-align: right; font-size: 10px; }
  .test-first-grid, .aftercare-grid { grid-template-columns: 1fr; gap: 45px; }
  .notice-image { min-height: auto; padding: 12px; }
  .notice-image img { height: auto; }
  .aftercare-list article { grid-template-columns: 45px 1fr; gap: 14px; }
  .final-cta-inner { display: block; }
  .final-cta button { width: 100%; margin-top: 24px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .modal { padding: 0; }
  .safety-dialog { width: 100%; max-height: 100dvh; border-radius: 0; }
  .safety-head { padding: 22px 20px 18px; }
  .warning-mark { width: 45px; height: 45px; border-radius: 12px; }
  .safety-head h2 { font-size: 24px; }
  .safety-body { padding: 20px 20px 24px; }
  .safety-copy-items p { padding: 13px 0; font-size: 12px; line-height: 1.9; text-align: left; }
  .safety-confirm { padding: 14px 20px 18px; }
  .tutorial-dialog { width: 100%; height: 100dvh; max-height: none; grid-template-columns: 1fr; grid-template-rows: minmax(280px, 43vh) 1fr; border-radius: 0; overflow: auto; }
  .tutorial-player-wrap { min-height: 280px; }
  .tutorial-player-wrap video { max-height: 43vh; }
  .tutorial-panel { max-height: none; overflow: visible; padding: 27px 20px 32px; }
  .tutorial-panel h2 { font-size: 22px; }
  .image-dialog { width: 100%; height: 100dvh; max-height: none; border-radius: 0; display: grid; place-items: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}