@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    --zk-bg: #f5f2ea;
    --zk-surface: #fffdf8;
    --zk-ink: #12120f;
    --zk-muted: #69665d;
    --zk-soft: #918b7e;
    --zk-line: #ded6c7;
    --zk-line-strong: #c8beae;
    --zk-green: #3f6f52;
    --zk-green-soft: #e6efe2;
    --zk-blue: #345d73;
    --zk-blue-soft: #e2edf1;
    --zk-sand: #c99045;
    --zk-sand-soft: #f3e4cf;
    --zk-red: #b64b38;
    --zk-shadow: 0 18px 48px rgba(34, 30, 22, 0.08);
    --zk-radius: 8px;
    --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    letter-spacing: 0;
    color: var(--zk-ink);
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.9), rgba(245, 242, 234, 0.96) 48%, rgba(238, 232, 220, 0.98)),
        radial-gradient(circle at 18% 6%, rgba(63, 111, 82, 0.18), transparent 26%),
        radial-gradient(circle at 86% 2%, rgba(52, 93, 115, 0.16), transparent 28%),
        linear-gradient(135deg, rgba(201, 144, 69, 0.13), transparent 34%, rgba(63, 111, 82, 0.1) 66%, transparent 100%),
        var(--zk-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(18, 18, 15, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18, 18, 15, 0.03) 1px, transparent 1px),
        linear-gradient(115deg, transparent 0 42%, rgba(52, 93, 115, 0.11) 50%, transparent 58% 100%);
    background-size: 56px 56px, 56px 56px, 100% 720px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.22) 58%, transparent 86%);
}

::selection {
    background: var(--zk-ink);
    color: #fff;
}

a,
button,
input,
textarea,
select {
    font: inherit;
}

a {
    color: inherit;
}

button {
    cursor: pointer;
}

.site-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-nav {
    position: sticky;
    overflow: hidden;
    width: min(1180px, calc(100% - 32px));
    min-height: 72px;
    margin: 14px auto 0;
    border: 1px solid rgba(255, 253, 248, 0.74);
    border-radius: 999px;
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.9), rgba(255, 253, 248, 0.76)),
        linear-gradient(110deg, rgba(63, 111, 82, 0.12), transparent 28%, rgba(52, 93, 115, 0.1) 72%, rgba(201, 144, 69, 0.12));
    backdrop-filter: blur(18px);
    box-shadow: 0 16px 42px rgba(34, 30, 22, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.site-nav::before,
.site-footer::before {
    content: "";
    position: absolute;
    left: 22px;
    right: 22px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(63, 111, 82, 0.46), rgba(52, 93, 115, 0.34), transparent);
    pointer-events: none;
}

.site-nav::before {
    bottom: 0;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--zk-ink);
    font-size: 20px;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
}

.site-brand-mark {
    width: 34px;
    height: 34px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background:
        linear-gradient(135deg, rgba(63, 111, 82, 0.96), rgba(52, 93, 115, 0.94)),
        var(--zk-ink);
    font-size: 13px;
    font-weight: 800;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 8px 18px rgba(52, 93, 115, 0.16);
}

.nav-link,
.lang-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.nav-link {
    padding: 0 16px;
    color: var(--zk-muted);
}

.nav-link:hover {
    color: var(--zk-ink);
    background: #eee7d9;
    transform: translateY(-1px);
}

.nav-link.active {
    color: #fff;
    background: var(--zk-ink);
}

.lang-pill {
    min-width: 48px;
    padding: 0 14px;
    border: 1px solid var(--zk-line);
    color: var(--zk-muted);
    background: rgba(255, 255, 255, 0.62);
}

.lang-pill:hover {
    border-color: var(--zk-ink);
    color: var(--zk-ink);
    background: #fff;
}

.mobile-menu {
    width: min(1120px, calc(100% - 40px));
    margin: 10px auto 0;
    border: 1px solid var(--zk-line);
    border-radius: var(--zk-radius);
    background: rgba(255, 253, 248, 0.96);
    box-shadow: var(--zk-shadow);
}

.mobile-menu a {
    color: var(--zk-ink);
    font-weight: 800;
    text-decoration: none;
}

.page-section {
    padding: 74px 0;
}

.hero-section {
    position: relative;
    padding: 54px 0 44px;
}

.hero-section::before {
    content: "";
    position: absolute;
    inset: 12px max(12px, calc((100% - 1180px) / 2)) auto;
    height: min(520px, 62vw);
    z-index: -1;
    border-radius: 18px;
    background:
        linear-gradient(125deg, rgba(255, 253, 248, 0.28), rgba(255, 253, 248, 0) 36%),
        radial-gradient(circle at 16% 24%, rgba(63, 111, 82, 0.18), transparent 32%),
        radial-gradient(circle at 76% 18%, rgba(52, 93, 115, 0.16), transparent 30%),
        linear-gradient(135deg, rgba(18, 18, 15, 0.03), transparent 46%, rgba(201, 144, 69, 0.13));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
    pointer-events: none;
}

.section-heading {
    max-width: 780px;
    margin-bottom: 28px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 30px;
    padding: 0 12px;
    border: 1px solid var(--zk-line);
    border-radius: 999px;
    color: var(--zk-green);
    background: rgba(255, 253, 248, 0.74);
    font-size: 12px;
    font-weight: 900;
}

.eyebrow::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--zk-green);
}

.hero-title,
.page-title {
    margin: 0;
    color: var(--zk-ink);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: 0;
}

.hero-title {
    max-width: 720px;
    font-size: clamp(34px, 5vw, 64px);
}

.page-title {
    max-width: 720px;
    font-size: clamp(32px, 4vw, 52px);
}

.section-title {
    margin: 0;
    color: var(--zk-ink);
    font-size: clamp(26px, 3vw, 40px);
    font-weight: 900;
    line-height: 1.18;
}

.lead {
    max-width: 700px;
    color: var(--zk-muted);
    font-size: clamp(16px, 1.5vw, 18px);
    line-height: 1.72;
}

.copy {
    color: var(--zk-muted);
    font-size: 15px;
    line-height: 1.75;
}

.small-copy {
    color: var(--zk-soft);
    font-size: 14px;
    line-height: 1.65;
}

.surface-card,
.glass-panel,
.service-card,
.info-tile,
.stat-tile,
.file-card {
    border: 1px solid var(--zk-line);
    border-radius: var(--zk-radius);
    background: rgba(255, 253, 248, 0.86);
    box-shadow: var(--zk-shadow);
}

.surface-card,
.service-card,
.file-card {
    transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease, background-color 0.22s ease;
}

.surface-card:hover,
.service-card:hover,
.file-card:hover {
    border-color: rgba(63, 111, 82, 0.48);
    box-shadow: 0 20px 54px rgba(63, 111, 82, 0.12);
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-layout {
        grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
    }
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.visual-board {
    position: relative;
    overflow: hidden;
    min-height: 520px;
    border: 1px solid var(--zk-line);
    border-radius: var(--zk-radius);
    background:
        linear-gradient(145deg, rgba(63, 111, 82, 0.16), rgba(255, 253, 248, 0.24)),
        #eadfcd;
    box-shadow: var(--zk-shadow);
}

.visual-board img {
    width: 100%;
    height: 100%;
    min-height: 520px;
    display: block;
    object-fit: cover;
    opacity: 0.62;
    filter: saturate(0.75) contrast(0.96);
}

.visual-board::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(90deg, rgba(63, 111, 82, 0.16) 1px, transparent 1px),
        linear-gradient(180deg, rgba(63, 111, 82, 0.12) 1px, transparent 1px),
        linear-gradient(115deg, transparent 0 40%, rgba(255, 253, 248, 0.28) 48%, transparent 56% 100%),
        radial-gradient(circle at 28% 32%, rgba(52, 93, 115, 0.16), transparent 26%),
        radial-gradient(circle at 76% 12%, rgba(63, 111, 82, 0.14), transparent 24%);
    background-size: 44px 44px, 44px 44px, 180% 100%, 100% 100%, 100% 100%;
    mix-blend-mode: multiply;
    opacity: 0.74;
    animation: statusGridDrift 14s linear infinite;
}

.visual-board::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.08), rgba(255, 253, 248, 0.78)),
        linear-gradient(90deg, rgba(245, 242, 234, 0.34), transparent 48%, rgba(63, 111, 82, 0.12));
    pointer-events: none;
}

.visual-panel {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    z-index: 3;
    border: 1px solid rgba(255, 255, 255, 0.78);
    border-radius: var(--zk-radius);
    background: rgba(255, 253, 248, 0.86);
    backdrop-filter: blur(16px);
    box-shadow: 0 18px 48px rgba(34, 30, 22, 0.15);
}

.window-dots {
    display: flex;
    gap: 8px;
}

.window-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--zk-line-strong);
}

.service-card {
    padding: 20px;
}

.service-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: var(--zk-radius);
    color: var(--zk-ink);
    background: var(--zk-green-soft);
    font-weight: 900;
}

.service-card:nth-child(2n) .service-icon {
    background: var(--zk-blue-soft);
}

.service-card:nth-child(3n) .service-icon {
    background: var(--zk-sand-soft);
}

.service-card h3,
.info-tile h3,
.stat-tile h3 {
    margin: 0;
    color: var(--zk-ink);
    font-size: 20px;
    font-weight: 900;
    line-height: 1.25;
}

.service-card p,
.info-tile p {
    margin: 10px 0 0;
}

.service-grid {
    row-gap: 14px;
}

.scenario-panel {
    border: 1px solid rgba(222, 214, 199, 0.9);
    border-radius: var(--zk-radius);
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.82), rgba(255, 253, 248, 0.66)),
        linear-gradient(120deg, rgba(63, 111, 82, 0.07), transparent 44%, rgba(201, 144, 69, 0.08));
    padding: 24px;
    box-shadow: 0 14px 34px rgba(34, 30, 22, 0.06);
}

.scenario-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.scenario-item {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    padding: 16px;
    border: 1px solid rgba(222, 214, 199, 0.72);
    border-radius: var(--zk-radius);
    background: rgba(255, 255, 255, 0.52);
}

.scenario-item span {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--zk-green);
    background: var(--zk-green-soft);
    font-size: 12px;
    font-weight: 900;
}

.scenario-item h3 {
    margin: 0;
    color: var(--zk-ink);
    font-size: 18px;
    font-weight: 900;
    line-height: 1.28;
}

.scenario-item p {
    margin: 8px 0 0;
}

.privacy-section {
    padding: 84px 0 96px;
}

.privacy-doc {
    max-width: 820px;
    margin: 0 auto;
    padding: 56px clamp(22px, 5vw, 72px);
    border: 1px solid rgba(222, 214, 199, 0.86);
    border-radius: var(--zk-radius);
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.88), rgba(255, 253, 248, 0.68)),
        linear-gradient(130deg, rgba(63, 111, 82, 0.055), transparent 42%, rgba(52, 93, 115, 0.052));
    box-shadow: 0 18px 48px rgba(34, 30, 22, 0.07);
}

.privacy-kicker {
    margin: 0 0 18px;
    color: var(--zk-green);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.privacy-doc h1,
.privacy-doc h2 {
    color: var(--zk-ink);
    font-weight: 900;
    letter-spacing: 0;
}

.privacy-doc h1 {
    margin: 0;
    font-size: clamp(36px, 5vw, 62px);
    line-height: 1.06;
}

.privacy-doc h2 {
    margin: 48px 0 14px;
    font-size: clamp(22px, 2.4vw, 30px);
    line-height: 1.2;
}

.privacy-lead,
.privacy-doc p,
.privacy-doc li {
    color: var(--zk-muted);
    font-size: 16px;
    line-height: 1.88;
}

.privacy-lead {
    max-width: 660px;
    margin: 24px 0 0;
    font-size: 18px;
}

.privacy-doc ul {
    margin: 18px 0 0;
    padding-left: 0;
    list-style: none;
}

.privacy-doc li {
    position: relative;
    padding-left: 28px;
    margin-top: 12px;
}

.privacy-doc li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 0.78em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--zk-green);
}

.privacy-doc hr {
    margin: 42px 0 4px;
    border: 0;
    border-top: 1px solid var(--zk-line);
}

.privacy-doc blockquote {
    margin: 52px 0 0;
    padding: 20px 22px;
    border-left: 3px solid var(--zk-green);
    color: var(--zk-muted);
    background: rgba(255, 255, 255, 0.5);
    font-size: 15px;
    line-height: 1.8;
}

.cookie-banner {
    position: fixed;
    left: 50%;
    bottom: 22px;
    z-index: 80;
    width: min(1040px, calc(100% - 32px));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px 18px 16px 20px;
    border: 1px solid rgba(255, 253, 248, 0.16);
    border-radius: 12px;
    color: #fffdf8;
    background: var(--zk-green);
    box-shadow: 0 18px 44px rgba(34, 30, 22, 0.2);
    opacity: 0;
    transform: translate(-50%, 18px);
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.cookie-banner[hidden] {
    display: none;
}

.cookie-banner.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.cookie-banner p {
    margin: 0;
    color: rgba(255, 253, 248, 0.9);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.72;
}

.cookie-banner a {
    color: #fffdf8;
    font-weight: 900;
    text-underline-offset: 4px;
    text-decoration: underline;
}

.cookie-banner button {
    min-height: 42px;
    flex: 0 0 auto;
    padding: 0 18px;
    border: 1px solid rgba(255, 253, 248, 0.34);
    border-radius: 8px;
    color: #fffdf8;
    background: rgba(255, 253, 248, 0.12);
    font-size: 14px;
    font-weight: 900;
    line-height: 1;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.cookie-banner button:hover {
    border-color: rgba(255, 253, 248, 0.58);
    background: rgba(255, 253, 248, 0.18);
    transform: translateY(-1px);
}

.stat-label {
    color: var(--zk-soft);
    font-size: 12px;
    font-weight: 900;
}

.stat-value {
    color: var(--zk-ink);
    font-size: 28px;
    font-weight: 900;
    line-height: 1;
    word-break: keep-all;
}

.stat-tile,
.info-tile {
    padding: 20px;
    background: rgba(255, 255, 255, 0.58);
    box-shadow: none;
}

.metric-bar,
.skill-bar-bg {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #eae1d2;
}

.metric-bar-fill,
.skill-bar-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--zk-green), var(--zk-blue));
    transition: width 1s ease-in-out;
}

.process-list {
    display: grid;
    gap: 14px;
    counter-reset: process;
}

.process-item {
    position: relative;
    padding: 20px 20px 20px 68px;
    border: 1px solid var(--zk-line);
    border-radius: var(--zk-radius);
    background: rgba(255, 253, 248, 0.78);
}

.process-item::before {
    counter-increment: process;
    content: counter(process, decimal-leading-zero);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--zk-ink);
    font-size: 12px;
    font-weight: 900;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--zk-line);
    border-radius: 999px;
    color: var(--zk-green);
    background: rgba(255, 255, 255, 0.62);
    font-size: 12px;
    font-weight: 900;
}

.section-divider {
    height: 1px;
    background: var(--zk-line);
}

.btn-primary,
.btn-dark,
.btn-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 0 22px;
    border-radius: var(--zk-radius);
    font-size: 14px;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
}

.btn-primary {
    border: 1px solid var(--zk-green);
    color: #fff;
    background: var(--zk-green);
    box-shadow: 0 14px 30px rgba(63, 111, 82, 0.2);
}

.btn-dark {
    border: 1px solid var(--zk-ink);
    color: #fff;
    background: var(--zk-ink);
    box-shadow: 0 14px 30px rgba(18, 18, 15, 0.14);
}

.btn-light {
    border: 1px solid var(--zk-line);
    color: var(--zk-ink);
    background: rgba(255, 255, 255, 0.66);
}

.btn-primary:hover,
.btn-dark:hover,
.btn-light:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 34px rgba(34, 30, 22, 0.14);
}

.btn-primary.is-success,
.btn-dark.is-success {
    border-color: var(--zk-blue);
    background: var(--zk-blue);
}

.form-input,
.input-field {
    width: 100%;
    border: 1px solid var(--zk-line);
    border-radius: var(--zk-radius);
    background: rgba(255, 255, 255, 0.72);
    color: var(--zk-ink);
    padding: 14px 16px;
    font-size: 15px;
    letter-spacing: 0;
    outline: 0;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.form-input:focus,
.input-field:focus {
    border-color: var(--zk-green);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(63, 111, 82, 0.12);
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--zk-muted);
    font-size: 13px;
    font-weight: 900;
}

.code-input {
    height: 70px;
    font-size: 26px;
    font-weight: 900;
    text-align: center;
}

.file-card {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: none;
}

.file-card.border-cyan-500,
.file-card:hover {
    border-color: var(--zk-green);
    background: rgba(255, 253, 248, 0.96);
    transform: translateY(-1px);
}

.file-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: var(--zk-radius);
    color: var(--zk-green);
    background: var(--zk-green-soft);
}

.layout-two {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
}

@media (min-width: 1024px) {
    .layout-two {
        grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
        align-items: start;
    }

    .layout-two.reverse {
        grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    }
}

.site-footer {
    position: relative;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto 18px;
    padding: 36px 0 44px;
    border: 1px solid rgba(255, 253, 248, 0.62);
    border-radius: 18px 18px 0 0;
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.42), rgba(255, 253, 248, 0.18)),
        linear-gradient(110deg, rgba(63, 111, 82, 0.1), transparent 40%, rgba(52, 93, 115, 0.1));
    backdrop-filter: blur(14px);
}

.footer-inner {
    border-top: 1px solid rgba(222, 214, 199, 0.72);
    padding-left: 24px;
    padding-right: 24px;
}

.site-footer::before {
    top: 0;
}

.footer-privacy-link {
    display: inline-block;
    margin-left: 8px;
    color: rgba(145, 139, 126, 0.78);
    font-size: 11px;
    font-weight: 700;
    text-decoration: none;
}

.footer-privacy-link:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.back-to-top {
    position: fixed;
    right: 22px;
    bottom: 24px;
    z-index: 70;
    width: 46px;
    height: 46px;
    display: inline-grid;
    place-items: center;
    border: 1px solid rgba(255, 253, 248, 0.72);
    border-radius: 50%;
    color: #fffdf8;
    background: var(--zk-ink);
    box-shadow: 0 16px 36px rgba(34, 30, 22, 0.18);
    font-size: 22px;
    font-weight: 900;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.22s ease, transform 0.22s ease, background-color 0.22s ease;
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--zk-green);
    transform: translateY(-2px);
}

.transition-fade-in,
.animate-title-reveal {
    animation: fadeIn 0.5s ease-out both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes statusGridDrift {
    from {
        background-position: 0 0, 0 0, 0 0, 0 0, 0 0;
    }
    to {
        background-position: 44px 44px, 44px 44px, 100% 0, 0 0, 0 0;
    }
}

@media (max-width: 767px) {
    .site-nav {
        width: calc(100% - 20px);
        min-height: 64px;
        margin-top: 10px;
    }

    .site-shell {
        width: calc(100% - 24px);
    }

    .page-section {
        padding: 44px 0;
    }

    body,
    .copy,
    .small-copy,
    .form-label,
    .stat-label {
        font-size: 14px;
    }

    .hero-section {
        padding-top: 34px;
    }

    .hero-title {
        font-size: clamp(32px, 10vw, 44px);
    }

    .page-title {
        font-size: clamp(30px, 9vw, 40px);
    }

    .visual-board,
    .visual-board img {
        min-height: 420px;
    }

    .visual-panel {
        left: 12px;
        right: 12px;
        bottom: 12px;
    }

    .visual-board::before {
        opacity: 0.58;
        animation-duration: 20s;
    }

    .service-card {
        padding: 18px;
    }

    .scenario-panel {
        padding: 18px;
    }

    .scenario-list {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .scenario-item {
        padding: 14px;
    }

    .privacy-section {
        padding: 52px 0 64px;
    }

    .privacy-doc {
        padding: 34px 20px;
    }

    .privacy-lead,
    .privacy-doc p,
    .privacy-doc li,
    .privacy-doc blockquote {
        font-size: 14px;
    }

    .cookie-banner {
        left: 10px;
        right: 10px;
        bottom: 10px;
        width: auto;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 15px;
        transform: translateY(18px);
    }

    .cookie-banner.is-visible {
        transform: translateY(0);
    }

    .cookie-banner button {
        width: 100%;
    }

    .stat-value {
        font-size: 24px;
    }

    .site-footer {
        width: calc(100% - 20px);
        margin-bottom: 10px;
        padding: 28px 0 34px;
    }

    .back-to-top {
        right: 14px;
        bottom: 14px;
        width: 42px;
        height: 42px;
        font-size: 20px;
    }

    .footer-inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-primary,
    .btn-dark,
    .btn-light {
        width: 100%;
    }
}