/* ============================================================
   LapRove Official Site — Enterprise Design System
   Single-shell app · hash routing · production-grade visuals
   ============================================================ */

:root {
    /* palette */
    --bg: #f5f7fb;
    --bg-soft: #eef2f8;
    --surface: #ffffff;
    --ink: #0b1526;
    --ink-2: #33415c;
    --muted: #5b6b81;
    --faint: #8b99ad;
    --line: #e4eaf2;
    --line-strong: #d4dde9;

    --brand: #2456f0;
    --brand-deep: #1a3fd0;
    --brand-soft: #eef3ff;
    --cyan: #0898c9;
    --grad-text: linear-gradient(100deg, #2456f0 0%, #0898c9 100%);
    --grad-btn: linear-gradient(135deg, #2f66f2 0%, #1a3fd0 100%);

    --green: #0a9c66;
    --green-soft: #e7f7f0;
    --red: #e5484d;
    --red-soft: #fdecec;
    --amber: #d97706;

    /* elevation */
    --sh-1: 0 1px 2px rgba(11, 21, 38, 0.05), 0 2px 8px rgba(11, 21, 38, 0.04);
    --sh-2: 0 4px 12px rgba(11, 21, 38, 0.06), 0 12px 32px rgba(11, 21, 38, 0.08);
    --sh-3: 0 8px 24px rgba(11, 21, 38, 0.1), 0 28px 64px rgba(11, 21, 38, 0.14);

    /* geometry */
    --r-xl: 24px;
    --r-lg: 18px;
    --r-md: 14px;
    --r-sm: 10px;
    --maxw: 1200px;
    --nav-h: 68px;

    --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font);
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg);
    color: var(--ink);
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: -0.01em;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

::selection {
    background: rgba(36, 86, 240, 0.16);
}

/* ============================================================
   Header / Navigation
   ============================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    height: var(--nav-h);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(1.6) blur(18px);
    -webkit-backdrop-filter: saturate(1.6) blur(18px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.88);
    border-bottom-color: var(--line);
    box-shadow: 0 4px 20px rgba(11, 21, 38, 0.06);
}

.nav-inner {
    max-width: var(--maxw);
    height: 100%;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-brand img {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(36, 86, 240, 0.28);
}

.nav-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.nav-brand-name {
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--ink);
}

.nav-brand-tag {
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--brand);
    margin-top: 3px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
}

.nav-link {
    position: relative;
    padding: 9px 15px;
    font-size: 14.5px;
    font-weight: 550;
    color: var(--ink-2);
    text-decoration: none;
    border-radius: 10px;
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--ink);
    background: rgba(11, 21, 38, 0.05);
}

.nav-link.active {
    color: var(--brand);
    background: var(--brand-soft);
    font-weight: 650;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 650;
    letter-spacing: -0.01em;
    text-decoration: none;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease,
        border-color 0.18s ease;
    white-space: nowrap;
}

.btn svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}

.btn-primary {
    background: var(--grad-btn);
    color: #fff;
    box-shadow: 0 8px 20px rgba(36, 86, 240, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn-primary:hover {
    transform: translateY(-1.5px);
    box-shadow: 0 12px 28px rgba(36, 86, 240, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn-ghost {
    background: var(--surface);
    color: var(--ink);
    border-color: var(--line-strong);
    box-shadow: var(--sh-1);
}

.btn-ghost:hover {
    transform: translateY(-1.5px);
    border-color: #c2cede;
    box-shadow: var(--sh-2);
}

.btn-nav {
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 11px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 16px;
    border-radius: 14px;
}

.btn-dark {
    background: #0b1526;
    color: #fff;
    box-shadow: 0 10px 24px rgba(11, 21, 38, 0.3);
}

.btn-dark:hover {
    transform: translateY(-1.5px);
    box-shadow: 0 14px 30px rgba(11, 21, 38, 0.36);
}

/* store badges */
.store-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 13px 22px;
    border-radius: 14px;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.store-badge:hover {
    transform: translateY(-2px);
}

.store-badge img {
    width: 30px;
    height: 30px;
    object-fit: contain;
    flex-shrink: 0;
}

.store-text-group {
    display: flex;
    flex-direction: column;
    text-align: left;
    line-height: 1.15;
}

.store-sub {
    font-size: 10px;
    font-weight: 550;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.72;
}

.store-main {
    font-size: 15.5px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.store-badge.badge-google {
    background: #0b1526;
    color: #fff;
    box-shadow: 0 10px 26px rgba(11, 21, 38, 0.32);
}

.store-badge.badge-google:hover {
    box-shadow: 0 14px 32px rgba(11, 21, 38, 0.4);
}

.store-badge.badge-apple {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line-strong);
    box-shadow: var(--sh-1);
}

.store-badge.badge-apple:hover {
    box-shadow: var(--sh-2);
    border-color: #c2cede;
}

/* ============================================================
   Layout primitives
   ============================================================ */
.view {
    display: none;
    padding-top: var(--nav-h);
}

.view.active {
    display: block;
    animation: viewIn 0.45s cubic-bezier(0.22, 0.8, 0.36, 1);
}

@keyframes viewIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: 96px 0 0;
    position: relative;
}

.section:last-of-type {
    padding-bottom: 40px;
}

.section-head {
    max-width: 720px;
    margin: 0 auto 56px;
    text-align: center;
}

.section-head.left {
    text-align: left;
    margin-left: 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--brand-soft);
    border: 1px solid rgba(36, 86, 240, 0.16);
    color: var(--brand);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.eyebrow::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--brand);
}

.h2 {
    font-size: clamp(30px, 3.6vw, 44px);
    font-weight: 800;
    letter-spacing: -0.032em;
    line-height: 1.14;
    color: var(--ink);
}

.h2 .grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lead {
    font-size: 17px;
    color: var(--muted);
    line-height: 1.7;
    margin-top: 16px;
}

/* ============================================================
   Home — Hero
   ============================================================ */
.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(1100px 520px at 82% -10%, rgba(36, 86, 240, 0.14) 0%, transparent 62%),
        radial-gradient(900px 480px at 8% 4%, rgba(8, 152, 201, 0.12) 0%, transparent 58%),
        linear-gradient(180deg, #fbfcfe 0%, var(--bg) 100%);
    border-bottom: 1px solid var(--line);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(11, 21, 38, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(11, 21, 38, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(900px 480px at 60% 0%, #000 0%, transparent 78%);
    -webkit-mask-image: radial-gradient(900px 480px at 60% 0%, #000 0%, transparent 78%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 84px 32px 96px;
    display: grid;
    grid-template-columns: 1.02fr 0.98fr;
    gap: 64px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    width: fit-content;
    padding: 7px 15px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--line-strong);
    box-shadow: var(--sh-1);
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-2);
    backdrop-filter: blur(8px);
}

.hero-badge .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 4px rgba(10, 156, 102, 0.16);
    animation: pulse 2.4s ease infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(10, 156, 102, 0.16); }
    50% { box-shadow: 0 0 0 6px rgba(10, 156, 102, 0.06); }
}

.hero h1 {
    margin-top: 22px;
    font-size: clamp(38px, 4.6vw, 62px);
    font-weight: 900;
    letter-spacing: -0.038em;
    line-height: 1.07;
    color: var(--ink);
}

.hero h1 .grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    margin-top: 22px;
    max-width: 540px;
    font-size: 17.5px;
    line-height: 1.72;
    color: var(--muted);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin-top: 30px;
}

.trust-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13.5px;
    font-weight: 550;
    color: var(--muted);
}

.trust-item svg {
    width: 15px;
    height: 15px;
    color: var(--green);
    flex-shrink: 0;
}

/* hero visual */
.hero-visual {
    position: relative;
}

.hero-frame {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background: #0b1526;
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4), 0 40px 90px rgba(11, 21, 38, 0.32),
        0 18px 40px rgba(11, 21, 38, 0.22);
}

.hero-frame::before {
    content: '';
    display: block;
    height: 34px;
    background: linear-gradient(180deg, #101c31, #0c1728);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    background-image: radial-gradient(circle 4px at 18px 17px, #ff5f57 98%, transparent),
        radial-gradient(circle 4px at 34px 17px, #febc2e 98%, transparent),
        radial-gradient(circle 4px at 50px 17px, #28c840 98%, transparent);
    background-repeat: no-repeat;
}

.hero-frame img {
    width: 100%;
    aspect-ratio: 1624 / 750;
    object-fit: cover;
}


/* ============================================================
   Logo / capability strip
   ============================================================ */
.cap-strip {
    border-bottom: 1px solid var(--line);
    background: var(--surface);
}

.cap-strip-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 26px 32px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.cap-item {
    display: flex;
    align-items: center;
    gap: 13px;
}

.cap-item .cap-ic {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cap-item .cap-ic svg {
    width: 20px;
    height: 20px;
}

.cap-item b {
    display: block;
    font-size: 14.5px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.cap-item span {
    display: block;
    font-size: 12.5px;
    color: var(--faint);
}

/* ============================================================
   Cards & grids
   ============================================================ */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 30px 28px;
    box-shadow: var(--sh-1);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    position: relative;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-2);
    border-color: var(--line-strong);
}

.card .card-ic {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.card .card-ic svg {
    width: 24px;
    height: 24px;
}

.card .card-ic.tone-red {
    background: var(--red-soft);
    color: var(--red);
}

.card .card-ic.tone-green {
    background: var(--green-soft);
    color: var(--green);
}

.card h3 {
    font-size: 17.5px;
    font-weight: 750;
    letter-spacing: -0.02em;
    margin-bottom: 9px;
    color: var(--ink);
}

.card p {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.68;
}

.card.span-2 {
    grid-column: span 2;
}

/* feature link cards (features index) */
.feature-jump {
    text-decoration: none;
    display: block;
}

.feature-jump .jump-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 14px;
    font-weight: 650;
    color: var(--brand);
}

.feature-jump .jump-more svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.feature-jump:hover .jump-more svg {
    transform: translateX(3px);
}

/* ============================================================
   Scene showcase
   ============================================================ */
.scene-card {
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--sh-1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.scene-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sh-2);
}

.scene-media {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.scene-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 0.8, 0.36, 1);
}

.scene-card:hover .scene-media img {
    transform: scale(1.05);
}

.scene-body {
    padding: 18px 20px 22px;
}

.scene-body h3 {
    font-size: 16.5px;
    font-weight: 750;
    letter-spacing: -0.015em;
    margin-bottom: 6px;
}

.scene-body p {
    font-size: 13.5px;
    color: var(--muted);
    line-height: 1.6;
}

/* ============================================================
   App UI showcase
   ============================================================ */
.appui {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
}

.appui-col {
    display: grid;
    gap: 24px;
    grid-template-rows: 1fr 1fr;
}

.shot-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--sh-1);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.shot-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-2);
}

.shot-card img {
    width: 100%;
    flex: 1;
    min-height: 0;
    object-fit: cover;
}

.shot-body {
    padding: 18px 22px;
    border-top: 1px solid var(--line);
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.shot-body .tick {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}

.shot-body .tick svg {
    width: 13px;
    height: 13px;
}

.shot-body h3 {
    font-size: 15.5px;
    font-weight: 750;
    letter-spacing: -0.015em;
    margin-bottom: 4px;
}

.shot-body p {
    font-size: 13.5px;
    color: var(--muted);
    line-height: 1.6;
}

/* ============================================================
   Video
   ============================================================ */
.video-shell {
    max-width: 920px;
    margin: 0 auto;
    border-radius: var(--r-lg);
    overflow: hidden;
    background: #0b1526;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--sh-3);
}

.video-shell video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #0b1526;
}

/* ============================================================
   Steps
   ============================================================ */
.step-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 34px 28px 30px;
    box-shadow: var(--sh-1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-2);
}

.step-no {
    position: absolute;
    top: -15px;
    left: 28px;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--grad-btn);
    color: #fff;
    font-size: 15px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 14px rgba(36, 86, 240, 0.35);
}

.step-card h3 {
    font-size: 18px;
    font-weight: 750;
    letter-spacing: -0.02em;
    margin: 6px 0 10px;
}

.step-card p {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.7;
}

/* ============================================================
   Deep brand bands
   ============================================================ */
.band-dark {
    position: relative;
    overflow: hidden;
    border-radius: var(--r-xl);
    background:
        radial-gradient(720px 380px at 88% -20%, rgba(8, 152, 201, 0.4) 0%, transparent 60%),
        radial-gradient(620px 360px at -6% 120%, rgba(36, 86, 240, 0.5) 0%, transparent 62%),
        linear-gradient(135deg, #0c1728 0%, #10234a 100%);
    color: #fff;
    padding: 60px 56px;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 52px;
    align-items: center;
}

.band-dark h2 {
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 800;
    letter-spacing: -0.028em;
    line-height: 1.2;
}

.band-dark .band-lead {
    margin-top: 16px;
    font-size: 16px;
    line-height: 1.72;
    color: rgba(255, 255, 255, 0.78);
}

.band-list {
    list-style: none;
    display: grid;
    gap: 15px;
    position: relative;
    z-index: 1;
}

.band-list li {
    display: flex;
    gap: 13px;
    align-items: flex-start;
    font-size: 15px;
    line-height: 1.62;
    color: rgba(255, 255, 255, 0.92);
}

.band-list .tick {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(16, 200, 137, 0.18);
    color: #34d99f;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.band-list .tick svg {
    width: 12px;
    height: 12px;
}

.band-list b {
    color: #fff;
    font-weight: 700;
}

/* ============================================================
   CTA banner
   ============================================================ */
.cta-banner {
    position: relative;
    overflow: hidden;
    border-radius: var(--r-xl);
    background:
        radial-gradient(760px 420px at 50% -30%, rgba(36, 86, 240, 0.5) 0%, transparent 64%),
        linear-gradient(120deg, #0c1728 0%, #16295a 55%, #2456f0 130%);
    color: #fff;
    text-align: center;
    padding: 84px 40px;
}

.cta-banner h2 {
    font-size: clamp(30px, 3.8vw, 46px);
    font-weight: 900;
    letter-spacing: -0.034em;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    margin: 16px auto 34px;
    max-width: 560px;
    font-size: 16.5px;
    line-height: 1.68;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
}

.cta-banner .hero-cta {
    justify-content: center;
    margin-top: 0;
    position: relative;
    z-index: 1;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-cats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.faq-cat-btn {
    padding: 9px 20px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: var(--surface);
    color: var(--ink-2);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.faq-cat-btn:hover {
    border-color: var(--brand);
    color: var(--brand);
}

.faq-cat-btn.active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item.open {
    border-color: rgba(36, 86, 240, 0.3);
    box-shadow: var(--sh-1);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 19px 22px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 15.5px;
    font-weight: 650;
    letter-spacing: -0.015em;
    color: var(--ink);
}

.faq-q .faq-caret {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease, background 0.2s ease, color 0.2s ease;
}

.faq-q .faq-caret svg {
    width: 14px;
    height: 14px;
}

.faq-item.open .faq-caret {
    transform: rotate(180deg);
    background: var(--brand-soft);
    color: var(--brand);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.22, 0.8, 0.36, 1);
}

.faq-a-inner {
    padding: 0 22px 20px;
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.72;
}

/* ============================================================
   Page hero (sub pages)
   ============================================================ */
.page-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(1000px 460px at 85% -20%, rgba(36, 86, 240, 0.13) 0%, transparent 60%),
        radial-gradient(800px 420px at 4% 0%, rgba(8, 152, 201, 0.1) 0%, transparent 56%),
        linear-gradient(180deg, #fbfcfe 0%, var(--bg) 100%);
    border-bottom: 1px solid var(--line);
}

.page-hero-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 72px 32px 64px;
    text-align: center;
}

.page-hero h1 {
    font-size: clamp(34px, 4.2vw, 54px);
    font-weight: 900;
    letter-spacing: -0.036em;
    line-height: 1.1;
    margin-top: 20px;
}

.page-hero h1 .grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-hero .lead {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================
   Feature detail page
   ============================================================ */
.feature-block {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    gap: 64px;
    align-items: center;
    padding: 64px 0;
    border-bottom: 1px solid var(--line);
}

.feature-block:last-child {
    border-bottom: none;
}

.feature-block.flip .fb-media {
    order: -1;
}

.feature-block.flip {
    grid-template-columns: 1.08fr 0.92fr;
}

.fb-copy .fb-index {
    font-size: 12.5px;
    font-weight: 800;
    letter-spacing: 0.14em;
    color: var(--brand);
    text-transform: uppercase;
}

.fb-copy h2 {
    margin-top: 12px;
    font-size: clamp(26px, 2.9vw, 36px);
    font-weight: 800;
    letter-spacing: -0.028em;
    line-height: 1.18;
}

.fb-copy .fb-lead {
    margin-top: 14px;
    font-size: 15.5px;
    color: var(--muted);
    line-height: 1.75;
}

.fb-points {
    list-style: none;
    margin-top: 26px;
    display: grid;
    gap: 14px;
}

.fb-points li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14.8px;
    color: var(--ink-2);
    line-height: 1.62;
}

.fb-points .tick {
    width: 21px;
    height: 21px;
    border-radius: 7px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.fb-points .tick svg {
    width: 12px;
    height: 12px;
}

.fb-points b {
    color: var(--ink);
    font-weight: 700;
}

.fb-media {
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--sh-2);
}

.fb-media img {
    width: 100%;
    object-fit: cover;
}

/* spec table */
.spec-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--sh-1);
}

.spec-table th,
.spec-table td {
    text-align: left;
    padding: 16px 22px;
    font-size: 14.5px;
    border-bottom: 1px solid var(--line);
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table th {
    background: var(--bg-soft);
    font-weight: 700;
    color: var(--ink);
    width: 38%;
}

.spec-table td {
    color: var(--muted);
}

/* notice card */
.notice {
    display: flex;
    gap: 16px;
    background: #fffaf0;
    border: 1px solid #f3e3c2;
    border-radius: var(--r-md);
    padding: 22px 24px;
}

.notice .notice-ic {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: #fdf1d8;
    color: var(--amber);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notice .notice-ic svg {
    width: 19px;
    height: 19px;
}

.notice b {
    display: block;
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--ink);
}

.notice p {
    font-size: 14px;
    color: #7a6a45;
    line-height: 1.65;
}

/* ============================================================
   Download view
   ============================================================ */
.dl-hero {
    text-align: center;
    padding: 84px 0 56px;
}

.dl-hero h1 {
    font-size: clamp(34px, 4.2vw, 54px);
    font-weight: 900;
    letter-spacing: -0.036em;
    line-height: 1.1;
    margin-top: 20px;
}

.dl-hero h1 .grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dl-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 44px 0 0;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--sh-1);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.dl-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--muted);
    font-size: 14.5px;
    font-weight: 650;
    cursor: pointer;
    transition: all 0.22s ease;
    white-space: nowrap;
}

.dl-tab svg {
    width: 16px;
    height: 16px;
}

.dl-tab:hover {
    color: var(--ink);
}

.dl-tab.active {
    background: var(--grad-btn);
    color: #fff;
    box-shadow: 0 6px 16px rgba(36, 86, 240, 0.32);
}

.dl-panel {
    display: none;
    margin-top: 56px;
}

.dl-panel.active {
    display: block;
    animation: viewIn 0.4s cubic-bezier(0.22, 0.8, 0.36, 1);
}

/* product/guide panels reuse card system */
.guide-block {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 32px;
    box-shadow: var(--sh-1);
}

.guide-block + .guide-block {
    margin-top: 20px;
}

.guide-block h2 {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 19px;
    font-weight: 750;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.guide-block h2 .gb-ic {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.guide-block h2 .gb-ic svg {
    width: 17px;
    height: 17px;
}

.guide-block .gb-body {
    font-size: 14.8px;
    color: var(--muted);
    line-height: 1.78;
}

.guide-block .gb-body p {
    margin-bottom: 10px;
}

.guide-block .gb-body ul,
.guide-block .gb-body ol {
    margin: 8px 0 14px 22px;
}

.guide-block .gb-body li {
    margin-bottom: 7px;
}

.guide-block .gb-body b,
.guide-block .gb-body strong {
    color: var(--ink);
    font-weight: 650;
}

.gb-step-no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 7px;
    border-radius: 8px;
    background: var(--brand-soft);
    color: var(--brand);
    font-size: 12.5px;
    font-weight: 800;
}

/* ============================================================
   Contact view
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 920px;
    margin: 0 auto;
}

.contact-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 34px 32px;
    box-shadow: var(--sh-1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-2);
}

.contact-card .cc-ic {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.contact-card .cc-ic svg {
    width: 23px;
    height: 23px;
}

.contact-card h3 {
    font-size: 18px;
    font-weight: 750;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.68;
    margin-bottom: 16px;
}

.contact-card a.cc-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 15px;
    font-weight: 650;
    color: var(--brand);
    text-decoration: none;
}

.contact-card a.cc-link:hover {
    text-decoration: underline;
}

.contact-card a.cc-link svg {
    width: 16px;
    height: 16px;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    margin-top: 110px;
    background: #0c1526;
    color: rgba(255, 255, 255, 0.72);
    position: relative;
}

.footer-main {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 64px 32px 48px;
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
    gap: 48px;
}

.footer-brand .fbrand-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-brand img {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    object-fit: cover;
}

.footer-brand .fbrand-name {
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    max-width: 300px;
}

.footer-store-row {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.footer-store-row .mini-store {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    text-decoration: none;
    color: #fff;
    font-size: 12px;
    font-weight: 650;
    transition: background 0.2s ease;
}

.footer-store-row .mini-store:hover {
    background: rgba(255, 255, 255, 0.14);
}

.footer-store-row .mini-store img {
    width: 18px;
    height: 18px;
    border-radius: 0;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
    display: grid;
    gap: 12px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 14.5px;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: #fff;
}

.footer-col .fbiz-name {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.55;
    margin-bottom: 8px;
}

.footer-col .fbiz-addr {
    font-size: 13.5px;
    line-height: 1.7;
}

.footer-col a.fmail {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #7ea4ff;
}

.footer-col a.fmail:hover {
    color: #9dbcff;
}

.footer-col a.fmail svg {
    width: 15px;
    height: 15px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.footer-bottom-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 22px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom-inner .fb-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom-inner a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
}

.footer-bottom-inner a:hover {
    color: #fff;
}

.footer-bottom-inner .sep {
    opacity: 0.4;
}

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.7s cubic-bezier(0.22, 0.8, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 0.8, 0.36, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        animation: none !important;
        transition: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cap-strip-inner {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .site-header {
        height: auto;
    }

    .nav-inner {
        padding: 10px 20px;
        gap: 6px 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-brand {
        width: 100%;
        justify-content: center;
    }

    .nav-links {
        gap: 0;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 13.5px;
    }

    .nav-actions {
        gap: 8px;
    }

    .view {
        padding-top: 148px;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 52px;
        padding: 56px 20px 72px;
        text-align: center;
    }

    .hero-badge,
    .hero-cta,
    .hero-trust {
        justify-content: center;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-sub {
        margin-left: auto;
        margin-right: auto;
    }

    .container {
        padding: 0 20px;
    }

    .section {
        padding-top: 72px;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .appui {
        grid-template-columns: 1fr;
    }

    .appui-col {
        grid-template-rows: none;
        grid-template-columns: 1fr 1fr;
    }

    .feature-block,
    .feature-block.flip {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 48px 0;
    }

    .feature-block.flip .fb-media {
        order: 0;
    }

    .band-dark {
        grid-template-columns: 1fr;
        padding: 44px 32px;
        gap: 32px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        padding: 52px 20px 40px;
        gap: 36px;
    }

    .footer-bottom-inner {
        padding: 20px;
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .site-header {
        height: auto;
    }

    .nav-inner {
        flex-wrap: wrap;
        justify-content: center;
        row-gap: 4px;
        padding: 10px 14px;
    }

    .nav-brand {
        width: 100%;
        justify-content: center;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .nav-actions {
        width: 100%;
        justify-content: center;
        gap: 8px;
    }

    .nav-actions .lang-toggle {
        padding: 8px 13px;
        font-size: 12.5px;
    }

    .nav-actions .btn-nav {
        padding: 9px 16px;
        font-size: 13px;
    }

    .view {
        padding-top: 158px;
    }

    .hero-inner {
        padding-top: 40px;
    }

    .grid-3,
    .grid-4,
    .grid-2,
    .cap-strip-inner,
    .appui-col {
        grid-template-columns: 1fr;
    }

    .card.span-2 {
        grid-column: span 1;
    }

    .hero-cta .store-badge,
    .cta-banner .store-badge {
        width: 100%;
        justify-content: center;
    }

    .hero-cta,
    .cta-banner .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .dl-tabs {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .dl-tab {
        justify-content: center;
    }

    .band-dark,
    .cta-banner {
        padding: 40px 24px;
    }

    .video-shell {
        border-radius: 14px;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .page-hero-inner {
        padding: 48px 20px 48px;
    }
}

/* ============================================================
   Additions: language toggle, guide media, FAQ visual, contact banner
   ============================================================ */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 16px;
    border-radius: 11px;
    border: 1px solid var(--line-strong);
    background: var(--surface);
    color: var(--ink-2);
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--sh-1);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.lang-toggle svg {
    width: 15px;
    height: 15px;
    color: var(--brand);
}

.lang-toggle:hover {
    border-color: var(--brand);
    color: var(--brand);
    transform: translateY(-1px);
}

/* How It Works: images inside guide blocks */
.guide-media {
    margin-top: 22px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.guide-media.two {
    grid-template-columns: 1fr 1fr;
}

.guide-media img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: var(--r-md);
    border: 1px solid var(--line);
    box-shadow: var(--sh-1);
}

/* FAQ: visual strip */
.faq-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 920px;
    margin: 0 auto 48px;
}

.faq-vis-card {
    position: relative;
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--sh-1);
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.faq-vis-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-2);
}

.faq-vis-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
}

.faq-vis-card span {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 10px;
    padding: 8px 14px;
    border-radius: 9px;
    background: rgba(12, 21, 38, 0.72);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 12.5px;
    font-weight: 650;
    text-align: center;
}

/* Contact: banner image */
.contact-banner {
    position: relative;
    border-radius: var(--r-xl);
    overflow: hidden;
    box-shadow: var(--sh-2);
    margin-bottom: 56px;
}

.contact-banner img {
    width: 100%;
    aspect-ratio: 21 / 8;
    object-fit: cover;
    display: block;
}

.contact-banner .cb-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 6px;
    padding: 34px 40px;
    background: linear-gradient(180deg, transparent 30%, rgba(12, 21, 38, 0.78) 100%);
    color: #fff;
}

.contact-banner .cb-overlay b {
    font-size: clamp(19px, 2.2vw, 26px);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.contact-banner .cb-overlay span {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.85);
}

@media (max-width: 640px) {
    .guide-media.two {
        grid-template-columns: 1fr;
    }

    .faq-visual {
        grid-template-columns: 1fr;
    }

    .contact-banner img {
        aspect-ratio: 16 / 10;
    }

    .contact-banner .cb-overlay {
        padding: 22px;
    }

    .lang-toggle {
        padding: 8px 13px;
        font-size: 12.5px;
    }
}

/* ============================================================
   Download view — app screenshots stacked carousel
   ============================================================ */
.shots-carousel {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 0 8px;
}

.shots-stack {
    position: relative;
    width: 380px;
    height: 740px;
    perspective: 1200px;
}

.shot-slide {
    position: absolute;
    inset: 0;
    border-radius: 26px;
    overflow: hidden;
    background: var(--surface);
    border: 1.5px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 25px 50px rgba(11, 21, 38, 0.16), 0 10px 20px rgba(11, 21, 38, 0.08);
    transition: all 0.65s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    cursor: pointer;
}

.shot-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    -webkit-user-drag: none;
    user-select: none;
}

.shot-slide.active {
    transform: translateX(0) translateY(0) scale(1);
    z-index: 3;
    box-shadow: 0 30px 60px rgba(11, 21, 38, 0.2), 0 12px 24px rgba(11, 21, 38, 0.1);
}

.shot-slide.next {
    opacity: 0.55;
    transform: translateX(56px) translateY(22px) scale(0.92);
    z-index: 2;
}

.shot-slide.far-next {
    opacity: 0.28;
    transform: translateX(96px) translateY(40px) scale(0.85);
    z-index: 1;
}

.shot-slide.leaving {
    opacity: 0;
    transform: translateX(-110px) translateY(-36px) scale(0.88);
    z-index: 4;
}

.shots-dots {
    display: flex;
    gap: 10px;
    margin-top: 34px;
}

.shots-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--line-strong);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.35s ease;
}

.shots-dot.active {
    background: var(--brand);
    width: 30px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(36, 86, 240, 0.35);
}

@media (max-width: 640px) {
    .shots-stack {
        width: 250px;
        height: 490px;
    }

    .shot-slide.next {
        transform: translateX(34px) translateY(16px) scale(0.92);
    }

    .shot-slide.far-next {
        transform: translateX(58px) translateY(28px) scale(0.85);
    }

    .shots-dots {
        margin-top: 26px;
    }
}