.release-screen { margin: 36px 0 20px; }
.release-screen img { display: block; width: 100%; height: auto; }
.release-screen figcaption { margin: 14px 8px 0; color: #b5c8dc; font-size: 14px; line-height: 1.6; }
.qp-phase-feature { margin: 0 auto 110px; max-width: 1240px; }
.qp-phase-feature > header { max-width: 760px; margin-bottom: 36px; }
.qp-phase-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.qp-phase-pair figure { margin: 0; min-width: 0; }
.qp-phase-pair img { display: block; width: 100%; height: auto; aspect-ratio: 1.375; object-fit: contain; }
.qp-phase-pair figcaption { padding: 18px 10px; line-height: 1.6; }
.qp-phase-pair figcaption strong { display: block; color: #85dcf3; font-size: 14px; letter-spacing: .08em; }
.qp-phase-pair figcaption span { display: block; color: #b5c8dc; font-size: 16px; margin-top: 8px; }
.qp-phase-note { max-width: 850px; font-size: 14px; line-height: 1.7; color: #9daec4; margin: 24px 10px 0; }
@media (max-width: 760px) { .qp-phase-pair { grid-template-columns: 1fr; } .qp-phase-feature { margin-bottom: 64px; } }

.qplayer-page {
    background:
        radial-gradient(circle at 50% 3%, rgba(39, 201, 237, 0.13), transparent 31rem),
        radial-gradient(circle at 86% 52%, rgba(131, 71, 255, 0.08), transparent 35rem),
        var(--background);
}

.product-page {
    width: min(100% - 48px, 1500px);
    margin: 0 auto;
    padding: 32px 0 80px;
}

.product-page-nav .main-nav .active { color: #fff; }
.product-page-nav .main-nav .active::after { transform: scaleX(1); }

.qp-hero {
    padding: clamp(0px, calc(11vw - 110px), 50px) 0 0;
    text-align: center;
}

.qp-hero-copy {
    position: relative;
    z-index: 0;
    isolation: isolate;
    max-width: 1040px;
    margin: 0 auto;
}

.qp-title-waveform {
    top: -28px;
    bottom: -28px;
    width: min(1520px, 108vw);
    height: auto;
    opacity: 0.78;
}

.qp-title-waveform::before {
    opacity: 0.1;
}

.qp-title-waveform::after {
    opacity: 0.42;
}

.qp-title-waveform::before,
.qp-title-waveform::after {
    background-position: center;
    background-size: 100% 150%;
}

.qp-title-waveform .animated-playhead::after {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 230px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(32, 192, 218, 0.18) 24%,
        rgba(89, 230, 255, 0.64) 43%,
        rgba(239, 255, 255, 0.98) 50%,
        rgba(89, 230, 255, 0.64) 57%,
        rgba(32, 192, 218, 0.18) 76%,
        transparent
    );
    box-shadow: 0 0 5px rgba(225, 254, 255, 0.72), 0 0 15px rgba(49, 220, 243, 0.42);
    content: "";
    transform: translateX(-50%);
}

.qp-title-waveform .playhead-top-glow {
    position: absolute;
    top: 0;
    left: 50%;
    width: 115px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(32, 192, 218, 0.18) 24%,
        rgba(89, 230, 255, 0.64) 43%,
        rgba(239, 255, 255, 0.98) 50%,
        rgba(89, 230, 255, 0.64) 57%,
        rgba(32, 192, 218, 0.18) 76%,
        transparent
    );
    box-shadow: 0 0 5px rgba(225, 254, 255, 0.72), 0 0 15px rgba(49, 220, 243, 0.42);
    transform: translateX(-50%);
}

:is(.qp-hero-label, .qp-intro-label, .qp-buy-label).playhead-lit-copy {
    background: linear-gradient(
        90deg,
        var(--cyan) 0%,
        var(--cyan) calc(var(--copy-light-x, -100px) - 70px),
        rgba(89, 230, 255, 0.96) calc(var(--copy-light-x, -100px) - 24px),
        #8ff5ff var(--copy-light-x, -100px),
        rgba(89, 230, 255, 0.96) calc(var(--copy-light-x, -100px) + 12px),
        var(--cyan) calc(var(--copy-light-x, -100px) + 34px),
        var(--cyan) 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
}

:is(.qp-hero-label, .qp-intro-label, .qp-buy-label).playhead-lit-copy::after {
    background: linear-gradient(
        90deg,
        transparent 0%,
        transparent calc(var(--copy-light-x, -100px) - 19px),
        rgba(63, 224, 246, 0.92) calc(var(--copy-light-x, -100px) - 8px),
        #9af7ff var(--copy-light-x, -100px),
        rgba(63, 224, 246, 0.92) calc(var(--copy-light-x, -100px) + 8px),
        transparent calc(var(--copy-light-x, -100px) + 19px),
        transparent 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    filter:
        drop-shadow(0 0 2px rgba(173, 250, 255, 1))
        drop-shadow(0 0 6px rgba(89, 230, 255, 0.98))
        drop-shadow(0 0 13px rgba(35, 207, 234, 0.84))
        drop-shadow(0 0 24px rgba(20, 151, 188, 0.48));
}

.qp-workflow-action {
    padding: 11px 16px;
    border: 1px solid rgba(89, 230, 255, 0.12);
    border-radius: 11px;
    background: rgba(89, 230, 255, 0.025);
}

.qp-hero h1 {
    margin: 22px 0 26px;
    font-size: clamp(4rem, 9.5vw, 9.2rem);
    line-height: 0.86;
    letter-spacing: -0.075em;
}

.qp-hero-copy > p:not(.section-label) {
    max-width: 760px;
    margin: 0 auto;
    color: var(--muted);
    font-size: clamp(1rem, 1.5vw, 1.32rem);
    line-height: 1.65;
}

.qp-actions { display: flex; justify-content: center; align-items: center; gap: 28px; margin-top: 34px; }

.qp-hero-stage {
    position: relative;
    isolation: isolate;
    width: 100vw;
    margin: clamp(60px, 7vw, 90px) 0 0 calc(50% - 50vw);
    overflow: visible;
}

.qp-hero-stage::before {
    position: absolute;
    inset: 2% 8% 7%;
    z-index: -1;
    background:
        radial-gradient(ellipse at 47% 48%, rgb(52, 218, 242), rgba(29, 161, 211, 0.8) 44%, transparent 72%),
        radial-gradient(ellipse at 68% 42%, rgba(121, 78, 255, 0.88), transparent 62%);
    content: "";
    filter: blur(38px);
    pointer-events: none;
}

.qp-hero-stage::after {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(to bottom, transparent 78%, var(--background));
    content: "";
    pointer-events: none;
}

.qp-hero-stage img {
    position: relative;
    z-index: 1;
    display: block;
    width: 82%;
    height: auto;
    margin: 0 auto;
    clip-path: inset(0 round 20px);
    transform: translateY(-50px);
}

.qp-status {
    position: absolute;
    top: 28px;
    left: 50%;
    z-index: 2;
    padding: 10px 15px;
    border: 1px solid rgba(89, 230, 255, 0.28);
    border-radius: 999px;
    background: rgba(3, 7, 12, 0.82);
    color: var(--cyan);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    transform: translateX(-50%);
}

.qp-status span { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: #38df70; box-shadow: 0 0 12px #38df70; }

.qp-intro {
    position: relative;
    z-index: 0;
    isolation: isolate;
    max-width: 1060px;
    margin: clamp(-55px, calc(10vw - 125px), 40px) auto clamp(65px, 8vw, 110px);
    text-align: center;
}

.qp-intro-waveform {
    top: -24px;
    bottom: -30px;
    width: min(1420px, 106vw);
    height: auto;
    opacity: 0.78;
}

.qp-intro-waveform::before { opacity: 0.1; }
.qp-intro-waveform::after { opacity: 0.42; }
.qp-intro-waveform .animated-playhead { opacity: 0.82; }

.qp-intro h2, .qp-capabilities h2, .qp-license h2, .qp-buy h2 {
    margin: 18px 0 24px;
    font-size: clamp(2.5rem, 5.7vw, 6rem);
    line-height: 0.98;
    letter-spacing: -0.065em;
}

.qp-intro > p:last-child { max-width: 720px; margin: 0 auto; color: var(--muted); font-size: 1.12rem; line-height: 1.75; }

.qp-feature {
    position: relative;
    display: grid;
    grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.6fr);
    gap: clamp(45px, 7vw, 110px);
    align-items: center;
    margin: clamp(80px, 10vw, 140px) 0;
}

.qp-feature-wide {
    margin-top: clamp(65px, 8vw, 105px);
    margin-bottom: 50px;
    transform: translateY(70px);
}

.qp-feature-wide > .qp-feature-copy,
.qp-feature-wide > .qp-screen {
    transform: translateY(-38px);
}

.qp-feature-reverse {
    margin-top: 50px;
    margin-bottom: 75px;
}

.show-mode-feature {
    margin-top: 75px;
    margin-bottom: clamp(90px, 10vw, 135px);
}

.qp-feature-copy,
.qp-feature .qp-screen {
    position: relative;
    z-index: 1;
}

.qp-section-counter {
    top: clamp(-175px, -11vw, -125px);
    z-index: 0;
    height: clamp(190px, 22vw, 300px);
    color: rgba(103, 229, 232, 0.075);
    font-size: clamp(11rem, 22vw, 22rem);
}

.qp-section-counter span {
    right: auto;
    left: 50%;
    transform: translate(-50%, -57%) scaleX(1.08);
    transform-origin: center;
}

.qp-feature-reverse { grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.72fr); }

.qp-feature-copy h2 { margin: 12px 0 22px; font-size: clamp(2.35rem, 4.5vw, 4.8rem); line-height: 0.96; letter-spacing: -0.06em; }
.qp-feature-copy > p:not(.qp-kicker) { color: var(--muted); font-size: 1rem; line-height: 1.7; }
.qp-kicker { margin: 0; color: var(--cyan); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em; }
.qp-feature-copy ul { margin: 28px 0 0; padding: 0; list-style: none; }
.qp-feature-copy li { position: relative; padding: 12px 0 12px 22px; border-bottom: 1px solid rgba(255,255,255,.075); color: #d8dce7; line-height: 1.5; }
.qp-feature-copy li::before { position: absolute; top: 19px; left: 0; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 9px rgba(89,230,255,.55); content: ""; }

.qp-screen {
    position: relative;
    isolation: isolate;
    margin: 0;
    overflow: visible;
    border: 0;
    border-radius: 20px;
    background: #090b10;
    box-shadow: 0 34px 90px rgba(0,0,0,.48), 0 0 60px rgba(55,184,255,.055);
}

.qp-screen::before {
    position: absolute;
    inset: -3%;
    z-index: -1;
    border-radius: inherit;
    background:
        radial-gradient(ellipse at 47% 48%, rgb(52, 218, 242), rgba(29, 161, 211, 0.8) 44%, transparent 72%),
        radial-gradient(ellipse at 68% 42%, rgba(121, 78, 255, 0.88), transparent 62%);
    content: "";
    filter: blur(38px);
    pointer-events: none;
}

.qp-screen img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: inherit;
    clip-path: inset(3.5% 0 3.5% round 20px);
}
.qp-editor-screen { box-shadow: 0 34px 90px rgba(0,0,0,.5), 0 0 70px rgba(255,66,75,.045); }

.qp-capabilities {
    position: relative;
    z-index: 0;
    isolation: isolate;
    margin: clamp(90px, 11vw, 155px) 0 clamp(-30px, calc(11vw - 120px), 35px);
}

.qp-capabilities > header {
    position: relative;
    z-index: 1;
    max-width: 920px;
    margin-bottom: 54px;
}

.qp-capability-counter {
    top: -72px;
    z-index: 0;
    height: clamp(210px, 24vw, 330px);
    color: rgba(103, 229, 232, 0.065);
    font-size: clamp(10rem, 20vw, 20rem);
}

.qp-capability-counter span {
    right: auto;
    left: 50%;
    transform: translate(-50%, -55%) scaleX(1.08);
    transform-origin: center;
}

.qp-capability-grid {
    border-bottom: 1px solid rgba(255,255,255,.11);
}

.qp-capability-grid article {
    position: relative;
    display: grid;
    grid-template-columns: 50px minmax(200px, .55fr) minmax(300px, 1fr);
    column-gap: 20px;
    align-items: baseline;
    padding: 18px 10px;
    border-top: 1px solid rgba(255,255,255,.11);
    transition: padding 220ms ease, background 220ms ease;
}

.qp-capability-grid article:not(.redundancy-capability) h3 { grid-column: 2; }
.qp-capability-grid article:not(.redundancy-capability) p { grid-column: 3; }

.qp-capability-grid article:hover {
    padding-right: 24px;
    padding-left: 24px;
    background: linear-gradient(90deg, rgba(42,205,230,.055), transparent 72%);
}

.qp-capability-grid span {
    color: var(--cyan);
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .16em;
}

.qp-capability-grid h3 {
    margin: 0;
    font-size: clamp(1.08rem, 1.65vw, 1.45rem);
    letter-spacing: -.035em;
}

.qp-capability-grid p {
    max-width: 620px;
    margin: 0;
    color: var(--muted);
    font-size: .92rem;
    line-height: 1.55;
}

.qp-capability-grid .redundancy-capability {
    grid-template-columns: 50px minmax(200px, .55fr) minmax(300px, 1fr);
}

.qp-capability-grid .bus-capability {
    background: linear-gradient(90deg, rgba(38,190,218,.06), transparent 74%);
}

.qp-capability-grid .redundancy-capability {
    background: linear-gradient(90deg, rgba(74,177,222,.07), rgba(115,61,224,.09), transparent 88%);
}

.qp-capability-grid .redundancy-capability span { color: #b695ff; }

.qp-compatibility {
    margin: clamp(75px, 9vw, 125px) 0;
    padding: clamp(34px, 5vw, 68px);
    border: 1px solid rgba(89, 230, 255, 0.18);
    border-radius: 30px;
    background:
        radial-gradient(circle at 88% 8%, rgba(89, 230, 255, 0.1), transparent 34%),
        radial-gradient(circle at 8% 100%, rgba(125, 78, 255, 0.08), transparent 36%),
        rgba(8, 13, 22, 0.74);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.qp-compatibility > header {
    max-width: 930px;
    margin-bottom: 42px;
}

.qp-compatibility h2 {
    margin: 15px 0 18px;
    font-size: clamp(2.45rem, 5vw, 5.2rem);
    line-height: 0.98;
    letter-spacing: -0.06em;
}

.qp-compatibility > header > p:last-child {
    max-width: 740px;
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.qp-compatibility-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid rgba(255, 255, 255, 0.11);
    border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.qp-compatibility-grid article {
    min-height: 190px;
    padding: 28px 24px 26px 0;
}

.qp-compatibility-grid article + article {
    padding-left: 24px;
    border-left: 1px solid rgba(255, 255, 255, 0.11);
}

.qp-compatibility-grid span {
    color: var(--cyan);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.17em;
}

.qp-compatibility-grid h3 {
    margin: 30px 0 12px;
    font-size: clamp(1.08rem, 1.6vw, 1.38rem);
    letter-spacing: -0.035em;
}

.qp-compatibility-grid p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.65;
}

.qp-license { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(50px, 9vw, 150px); align-items: end; padding: clamp(0px, calc(8vw - 80px), 25px) clamp(65px, 8vw, 105px); border: 1px solid rgba(113,204,255,.18); border-radius: 32px; background: radial-gradient(circle at 80% 20%, rgba(136,75,255,.13), transparent 45%), rgba(8,13,22,.78); }
.qp-license h2 { font-size: clamp(2.6rem, 5vw, 5.4rem); }
.qp-license-copy p { margin: 0 0 30px; color: var(--muted); line-height: 1.75; }

.qp-buy {
    position: relative;
    z-index: 0;
    isolation: isolate;
    max-width: 940px;
    margin: clamp(-10px, calc(12vw - 110px), 60px) auto 50px;
    text-align: center;
}

.qp-buy-waveform {
    top: -38px;
    bottom: -42px;
    width: min(1420px, 106vw);
    height: auto;
    opacity: 0.78;
}

.qp-buy-waveform::before { opacity: 0.1; }
.qp-buy-waveform::after { opacity: 0.42; }
.qp-buy-waveform .animated-playhead { opacity: 0.82; }

.qplayer-page .waveform-backdrop::after {
    filter:
        sepia(1)
        saturate(8)
        hue-rotate(135deg)
        brightness(2.15)
        drop-shadow(0 0 5px rgba(188, 252, 255, 0.78))
        drop-shadow(0 0 13px rgba(42, 222, 244, 0.62));
    opacity: 0.72;
    -webkit-mask-image: linear-gradient(
        90deg,
        transparent 0%,
        rgba(0, 0, 0, 0.08) 31%,
        rgba(0, 0, 0, 0.4) 42%,
        black 47%,
        black 53%,
        rgba(0, 0, 0, 0.4) 58%,
        rgba(0, 0, 0, 0.08) 69%,
        transparent 100%
    );
    mask-image: linear-gradient(
        90deg,
        transparent 0%,
        rgba(0, 0, 0, 0.08) 31%,
        rgba(0, 0, 0, 0.4) 42%,
        black 47%,
        black 53%,
        rgba(0, 0, 0, 0.4) 58%,
        rgba(0, 0, 0, 0.08) 69%,
        transparent 100%
    );
}

.playhead-lit-button {
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.playhead-lit-button::after {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--button-light-x, -200px);
    z-index: 2;
    width: 96px;
    background: linear-gradient(
        90deg,
        transparent 24%,
        rgba(32, 211, 237, 0.24) 34%,
        rgba(103, 239, 252, 0.58) 42%,
        rgba(235, 255, 255, 0.98) 47%,
        #ffffff 50%,
        rgba(224, 254, 255, 0.96) 53%,
        rgba(76, 229, 247, 0.54) 59%,
        rgba(25, 195, 224, 0.2) 67%,
        transparent 76%
    );
    content: "";
    mix-blend-mode: screen;
    opacity: var(--button-light-strength, 0);
    transform: translateX(-50%);
    pointer-events: none;
}

.playhead-lit-button::before {
    position: absolute;
    inset: 0;
    z-index: 3;
    padding: 2px;
    border-radius: inherit;
    background: radial-gradient(
        ellipse 112px 90px at var(--button-light-x, 50%) 50%,
        rgba(241, 255, 255, 0.98) 0%,
        rgba(151, 246, 253, 0.76) 34%,
        rgba(62, 225, 244, 0.4) 62%,
        rgba(35, 190, 216, 0.13) 82%,
        transparent 100%
    );
    content: "";
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    mask-composite: exclude;
    opacity: var(--button-edge-afterglow, 0);
    filter: drop-shadow(0 0 6px rgba(126, 240, 250, 0.5));
    pointer-events: none;
}

.qp-buy > p:not(.section-label) { max-width: 680px; margin: 0 auto 34px; color: var(--muted); line-height: 1.7; }

@media (max-width: 900px) {
    .product-page-nav { grid-template-columns: auto 1fr auto; }
    .product-page-nav .eyebrow { display: none; }
    .product-page-nav .main-nav { justify-content: center; margin-left: 20px; }
    .qp-feature, .qp-feature-reverse, .qp-license { grid-template-columns: 1fr; }
    .qp-feature-reverse .qp-screen { order: 2; }
    .qp-capability-grid article { grid-template-columns: 50px minmax(180px, .6fr) 1fr; column-gap: 20px; }
    .qp-capability-grid .redundancy-capability { grid-template-columns: 50px minmax(180px, .6fr) 1fr; }
    .qp-compatibility-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .qp-compatibility-grid article:nth-child(3) { border-left: 0; }
    .qp-compatibility-grid article:nth-child(n + 3) { border-top: 1px solid rgba(255, 255, 255, 0.11); }
}

@media (max-width: 640px) {
    .product-page { width: min(100% - 28px, 1500px); padding-top: 18px; }
    .product-page-nav { grid-template-columns: 1fr auto; }
    .product-page-nav .main-nav { display: none; }
    .product-page-nav .brand-logo { width: 92px; }
    .qp-hero { padding-top: 0; }
    .qp-hero h1 { font-size: clamp(3.5rem, 18vw, 5.2rem); }
    .qp-actions { flex-direction: column; gap: 12px; }
    .qp-hero-stage { margin-top: 55px; }
    .qp-hero-stage img { width: 128%; transform: translate(-11%, -50px); }
    .qp-status { top: 14px; white-space: nowrap; }
    .qp-feature { gap: 35px; margin: 82px 0; }
    .qp-feature-wide > .qp-feature-copy,
    .qp-feature-wide > .qp-screen { transform: none; }
    .qp-feature-wide { transform: none; }
    .qp-capability-grid article {
        grid-template-columns: 42px 1fr;
        gap: 7px 14px;
        padding: 16px 4px;
    }
    .qp-capability-grid .redundancy-capability {
        grid-template-columns: 42px 1fr;
        gap: 8px 14px;
    }
    .qp-capability-grid article:not(.redundancy-capability) h3 { grid-column: 2; }
    .qp-capability-grid article:not(.redundancy-capability) p { grid-column: 2; }
    .qp-capability-grid article:hover { padding-right: 8px; padding-left: 8px; }
    .qp-capability-grid .redundancy-capability p { grid-column: 2; }
    .qp-compatibility { margin: 72px 0; padding: 28px 22px; border-radius: 22px; }
    .qp-compatibility h2 { letter-spacing: -0.05em; }
    .qp-compatibility-grid { grid-template-columns: 1fr; }
    .qp-compatibility-grid article,
    .qp-compatibility-grid article + article { min-height: 0; padding: 23px 0; border-left: 0; }
    .qp-compatibility-grid article + article { border-top: 1px solid rgba(255, 255, 255, 0.11); }
    .qp-compatibility-grid h3 { margin-top: 16px; }
    .qp-license { padding: 10px 26px; border-radius: 22px; }
}