/* /skin/css/css.css */
:root {
    --zhaoan-white: #ffffff;
    --zhaoan-bg: #f5f5f7;
    --zhaoan-bg-alt: #ececef;
    --zhaoan-text: #1d1d1f;
    --zhaoan-text-secondary: #555555;
    --zhaoan-text-muted: #787880;
    --zhaoan-blue: #2563eb;
    --zhaoan-blue-deep: #1a4fbf;
    --zhaoan-blue-light: #e8f0fe;
    --zhaoan-yellow: #f5a623;
    --zhaoan-yellow-light: #fef9f0;
    --zhaoan-green: #22c55e;
    --zhaoan-green-light: #f0fdf6;
    --zhaoan-red: #ef4444;
    --zhaoan-red-light: #fef5f5;
    --zhaoan-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --zhaoan-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    --zhaoan-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --zhaoan-radius-sm: 10px;
    --zhaoan-radius: 16px;
    --zhaoan-radius-lg: 24px;
    --zhaoan-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", "Helvetica Neue", sans-serif;
    --zhaoan-max-width: 1200px;
    --zhaoan-header-height: 60px;
    --zhaoan-topbar-height: 38px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--zhaoan-header-height) + var(--zhaoan-topbar-height) + 10px);
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--zhaoan-font);
    color: var(--zhaoan-text);
    background-color: var(--zhaoan-bg);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-image:
        radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.03) 0%, transparent 60%),
        radial-gradient(ellipse at 85% 30%, rgba(245, 166, 35, 0.03) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 70%, rgba(34, 197, 94, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
}

.zhaoan-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: #1d1d1f;
    color: #e8e8ed;
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--zhaoan-topbar-height);
    padding: 0 20px;
    font-size: 0.85rem;
    letter-spacing: 0.01em;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.zhaoan-topbar.zhaoan-topbar-hidden {
    transform: translateY(-100%);
}

.zhaoan-topbar-text {
    text-align: center;
}

.zhaoan-topbar-close {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 1.3rem;
    padding: 4px 8px;
    line-height: 1;
    border-radius: 4px;
    transition: color 0.2s;
}

.zhaoan-topbar-close:hover {
    color: #fff;
}

.zhaoan-header {
    position: fixed;
    top: var(--zhaoan-topbar-height);
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    height: var(--zhaoan-header-height);
    transition: box-shadow 0.3s;
}

.zhaoan-header.zhaoan-header-scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.zhaoan-header-inner {
    max-width: var(--zhaoan-max-width);
    margin: 0 auto;
    padding: 0 28px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.zhaoan-logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--zhaoan-text);
    flex-shrink: 0;
}

.zhaoan-logo-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.zhaoan-logo-text {
    letter-spacing: 0.02em;
}

.zhaoan-nav-list {
    display: flex;
    align-items: center;
    gap: 6px;
}

.zhaoan-nav-link {
    display: block;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--zhaoan-text-secondary);
    transition: color 0.25s, background-color 0.25s;
    white-space: nowrap;
}

.zhaoan-nav-link:hover {
    color: var(--zhaoan-blue);
    background-color: var(--zhaoan-blue-light);
}

.zhaoan-nav-link.zhaoan-nav-active {
    color: var(--zhaoan-blue);
    background-color: var(--zhaoan-blue-light);
    font-weight: 600;
}

.zhaoan-nav-cta {
    background-color: var(--zhaoan-blue) !important;
    color: #fff !important;
    border-radius: 8px;
    font-weight: 600 !important;
    padding: 8px 18px !important;
    transition: background-color 0.25s, transform 0.2s !important;
}

.zhaoan-nav-cta:hover {
    background-color: var(--zhaoan-blue-deep) !important;
    transform: translateY(-1px);
}

.zhaoan-nav-cta.zhaoan-nav-active {
    background-color: var(--zhaoan-blue-deep) !important;
    color: #fff !important;
}

.zhaoan-mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border-radius: 8px;
    z-index: 1002;
}

.zhaoan-menu-bar {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--zhaoan-text);
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s;
}

.zhaoan-mobile-menu-btn.zhaoan-menu-open .zhaoan-menu-bar:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.zhaoan-mobile-menu-btn.zhaoan-menu-open .zhaoan-menu-bar:nth-child(2) {
    opacity: 0;
}

.zhaoan-mobile-menu-btn.zhaoan-menu-open .zhaoan-menu-bar:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* Hero */
.zhaoan-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: calc(var(--zhaoan-header-height) + var(--zhaoan-topbar-height) + 40px) 28px 80px;
    overflow: hidden;
    background-color: #fafafa;
}

.zhaoan-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.zhaoan-hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.zhaoan-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.88) 0%, rgba(255, 255, 255, 0.72) 40%, rgba(255, 255, 255, 0.5) 70%, rgba(255, 255, 255, 0.78) 100%);
}

.zhaoan-hero-content {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin-left: 4%;
    text-align: left;
}

.zhaoan-hero-logo-wrap {
    margin-bottom: 18px;
}

.zhaoan-hero-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.zhaoan-hero-title {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 800;
    color: var(--zhaoan-text);
    line-height: 1.2;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.zhaoan-hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--zhaoan-text-secondary);
    margin-bottom: 32px;
    line-height: 1.5;
    max-width: 480px;
}

.zhaoan-hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.zhaoan-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.01em;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s, background-color 0.25s;
    min-height: 50px;
    min-width: 44px;
}

.zhaoan-btn:active {
    transform: scale(0.96);
}

.zhaoan-btn-phone {
    background-color: var(--zhaoan-text);
    color: #fff;
}

.zhaoan-btn-phone:hover {
    background-color: #333;
    box-shadow: var(--zhaoan-shadow-lg);
    transform: translateY(-2px);
}

.zhaoan-btn-register {
    background-color: var(--zhaoan-blue);
    color: #fff;
}

.zhaoan-btn-register:hover {
    background-color: var(--zhaoan-blue-deep);
    box-shadow: var(--zhaoan-shadow-lg);
    transform: translateY(-2px);
}

.zhaoan-btn-icon {
    display: flex;
    align-items: center;
}

.zhaoan-hero-download-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.85);
    border: 1.5px solid var(--zhaoan-blue);
    border-radius: 30px;
    color: var(--zhaoan-blue);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color 0.25s, transform 0.2s;
}

.zhaoan-hero-download-badge:hover {
    background: var(--zhaoan-blue-light);
    transform: translateY(-2px);
}

.zhaoan-hero-accent {
    position: absolute;
    border-radius: 50%;
    z-index: 0;
    opacity: 0.18;
    pointer-events: none;
}

.zhaoan-hero-accent-yellow {
    width: 240px;
    height: 240px;
    background: var(--zhaoan-yellow);
    top: 18%;
    right: 8%;
}

.zhaoan-hero-accent-green {
    width: 160px;
    height: 160px;
    background: var(--zhaoan-green);
    bottom: 20%;
    right: 20%;
}

.zhaoan-hero-accent-red {
    width: 120px;
    height: 120px;
    background: var(--zhaoan-red);
    bottom: 10%;
    right: 6%;
}

/* Section common */
.zhaoan-section-container {
    max-width: var(--zhaoan-max-width);
    margin: 0 auto;
    padding: 80px 28px;
}

.zhaoan-section-header {
    margin-bottom: 48px;
    text-align: left;
}

.zhaoan-section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    background: var(--zhaoan-bg-alt);
    color: var(--zhaoan-text-secondary);
    margin-bottom: 14px;
}

.zhaoan-section-tag-blue {
    background: var(--zhaoan-blue-light);
    color: var(--zhaoan-blue);
}

.zhaoan-section-tag-green {
    background: var(--zhaoan-green-light);
    color: #16a34a;
}

.zhaoan-section-tag-yellow {
    background: var(--zhaoan-yellow-light);
    color: #b87a14;
}

.zhaoan-section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 700;
    color: var(--zhaoan-text);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.zhaoan-section-desc {
    font-size: 1.05rem;
    color: var(--zhaoan-text-secondary);
    max-width: 560px;
}

/* Features */
.zhaoan-features {
    background-color: var(--zhaoan-white);
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

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

.zhaoan-feature-card {
    background: var(--zhaoan-bg);
    border-radius: var(--zhaoan-radius);
    overflow: hidden;
    box-shadow: var(--zhaoan-shadow-sm);
    transition: box-shadow 0.3s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.zhaoan-feature-card:hover {
    box-shadow: var(--zhaoan-shadow-lg);
    transform: translateY(-4px);
}

.zhaoan-feature-card-img img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.zhaoan-feature-card-body {
    padding: 22px 24px 20px;
}

.zhaoan-feature-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--zhaoan-text);
}

.zhaoan-feature-card-text {
    font-size: 0.92rem;
    color: var(--zhaoan-text-secondary);
    line-height: 1.55;
    margin-bottom: 12px;
}

.zhaoan-feature-card-link {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--zhaoan-blue);
    transition: color 0.2s;
}

.zhaoan-feature-card:hover .zhaoan-feature-card-link {
    color: var(--zhaoan-blue-deep);
}

/* Visual */
.zhaoan-visual {
    padding: 0 28px;
    max-width: var(--zhaoan-max-width);
    margin: 0 auto;
}

.zhaoan-visual-inner {
    position: relative;
    border-radius: var(--zhaoan-radius-lg);
    overflow: hidden;
    box-shadow: var(--zhaoan-shadow);
}

.zhaoan-visual-img {
    width: 100%;
    height: auto;
    max-height: 480px;
    object-fit: cover;
}

.zhaoan-visual-caption {
    position: absolute;
    bottom: 24px;
    left: 32px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(6px);
}

/* Security */
.zhaoan-security {
    background-color: var(--zhaoan-white);
}

.zhaoan-security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.zhaoan-security-card {
    background: var(--zhaoan-bg);
    border-radius: var(--zhaoan-radius);
    padding: 28px 24px;
    box-shadow: var(--zhaoan-shadow-sm);
    transition: box-shadow 0.3s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.zhaoan-security-card:hover {
    box-shadow: var(--zhaoan-shadow-lg);
    transform: translateY(-3px);
}

.zhaoan-security-card-blue {
    background: var(--zhaoan-blue);
    color: #fff;
}

.zhaoan-security-card-blue .zhaoan-security-card-title {
    color: #fff;
}

.zhaoan-security-card-blue .zhaoan-security-card-text {
    color: rgba(255, 255, 255, 0.88);
}

.zhaoan-security-card-icon {
    margin-bottom: 16px;
    color: var(--zhaoan-blue);
}

.zhaoan-security-card-blue .zhaoan-security-card-icon {
    color: #fff;
}

.zhaoan-security-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--zhaoan-text);
}

.zhaoan-security-card-text {
    font-size: 0.9rem;
    color: var(--zhaoan-text-secondary);
    line-height: 1.55;
}

/* Performance */
.zhaoan-performance {
    background: var(--zhaoan-bg);
}

.zhaoan-perf-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.zhaoan-perf-image img {
    width: 100%;
    border-radius: var(--zhaoan-radius);
    box-shadow: var(--zhaoan-shadow);
    object-fit: cover;
}

.zhaoan-perf-content {
    text-align: left;
}

.zhaoan-perf-list {
    margin-top: 20px;
}

.zhaoan-perf-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--zhaoan-text-secondary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.zhaoan-perf-list-item:last-child {
    border-bottom: none;
}

.zhaoan-perf-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--zhaoan-green);
    flex-shrink: 0;
}

/* Ecosystem */
.zhaoan-ecosystem {
    background-color: var(--zhaoan-white);
}

.zhaoan-eco-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.zhaoan-eco-card {
    background: var(--zhaoan-bg);
    border-radius: var(--zhaoan-radius);
    overflow: hidden;
    box-shadow: var(--zhaoan-shadow-sm);
    transition: box-shadow 0.3s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.zhaoan-eco-card:hover {
    box-shadow: var(--zhaoan-shadow-lg);
    transform: translateY(-4px);
}

.zhaoan-eco-card-img {
    width: 100%;
    height: 170px;
    object-fit: cover;
}

.zhaoan-eco-card-info {
    padding: 16px 18px 18px;
}

.zhaoan-eco-card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--zhaoan-text);
}

.zhaoan-eco-card-text {
    font-size: 0.84rem;
    color: var(--zhaoan-text-muted);
    line-height: 1.4;
}

/* Showcase */
.zhaoan-showcase {
    padding: 40px 28px;
    max-width: var(--zhaoan-max-width);
    margin: 0 auto;
}

.zhaoan-showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.zhaoan-showcase-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--zhaoan-radius-sm);
    box-shadow: var(--zhaoan-shadow-sm);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.zhaoan-showcase-img:hover {
    transform: scale(1.02);
}

/* FAQ */
.zhaoan-faq {
    background-color: var(--zhaoan-bg);
}

.zhaoan-faq-list {
    max-width: 800px;
    margin: 0;
}

.zhaoan-faq-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.zhaoan-faq-item:first-child {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.zhaoan-faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 8px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--zhaoan-text);
    text-align: left;
    transition: color 0.25s;
    min-height: 48px;
}

.zhaoan-faq-question:hover {
    color: var(--zhaoan-blue);
}

.zhaoan-faq-question[aria-expanded="true"] {
    color: var(--zhaoan-blue);
}

.zhaoan-faq-arrow {
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--zhaoan-text-muted);
}

.zhaoan-faq-question[aria-expanded="true"] .zhaoan-faq-arrow {
    transform: rotate(180deg);
    color: var(--zhaoan-blue);
}

.zhaoan-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s;
}

.zhaoan-faq-answer.zhaoan-faq-answer-open {
    max-height: 300px;
    padding-bottom: 18px;
}

.zhaoan-faq-answer p {
    padding: 0 8px;
    font-size: 0.93rem;
    color: var(--zhaoan-text-secondary);
    line-height: 1.65;
}

/* Download */
.zhaoan-download {
    position: relative;
    padding: 100px 28px;
    overflow: hidden;
}

.zhaoan-download-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.zhaoan-download-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.zhaoan-download-overlay {
    position: absolute;
    inset: 0;
    background: rgba(37, 99, 235, 0.9);
}

.zhaoan-download-content {
    position: relative;
    z-index: 1;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
    color: #fff;
}

.zhaoan-download-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.zhaoan-download-desc {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 36px;
}

.zhaoan-download-actions {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.zhaoan-btn-download {
    background: #fff;
    color: var(--zhaoan-blue);
    padding: 16px 36px;
    border-radius: 14px;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.zhaoan-btn-download:hover {
    box-shadow: 0 10px 36px rgba(0, 0, 0, 0.22);
    transform: translateY(-3px);
    background: #fafafa;
}

.zhaoan-download-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.zhaoan-qr-img {
    width: 100px;
    height: 100px;
    border-radius: 10px;
    background: #fff;
    padding: 6px;
    object-fit: contain;
}

.zhaoan-qr-label {
    font-size: 0.8rem;
    opacity: 0.85;
}

/* Footer */
.zhaoan-footer {
    background: #1d1d1f;
    color: #c4c4c8;
    padding: 56px 28px 32px;
}

.zhaoan-footer-inner {
    max-width: var(--zhaoan-max-width);
    margin: 0 auto;
}

.zhaoan-footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.zhaoan-footer-col-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #f5f5f7;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.zhaoan-footer-links li {
    margin-bottom: 10px;
}

.zhaoan-footer-links a,
.zhaoan-footer-links span {
    font-size: 0.88rem;
    color: #a1a1a6;
    transition: color 0.2s;
}

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

.zhaoan-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.82rem;
    color: #787880;
    flex-wrap: wrap;
    gap: 12px;
}

.zhaoan-footer-copy {
    margin: 0;
}

.zhaoan-footer-lang {
    cursor: pointer;
    transition: color 0.2s;
}

.zhaoan-footer-lang:hover {
    color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
    .zhaoan-features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }
    .zhaoan-security-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .zhaoan-eco-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .zhaoan-perf-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .zhaoan-footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
    .zhaoan-hero-content {
        margin-left: 2%;
        max-width: 560px;
    }
}

@media (max-width: 768px) {
    .zhaoan-header {
        top: 0;
    }
    .zhaoan-topbar {
        display: none;
    }
    html {
        scroll-padding-top: calc(var(--zhaoan-header-height) + 10px);
    }
    .zhaoan-hero {
        padding-top: calc(var(--zhaoan-header-height) + 30px);
        min-height: auto;
        padding-bottom: 60px;
    }
    .zhaoan-hero-content {
        margin-left: 0;
        text-align: center;
        max-width: 100%;
    }
    .zhaoan-hero-logo-wrap {
        display: flex;
        justify-content: center;
    }
    .zhaoan-hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    .zhaoan-hero-buttons {
        justify-content: center;
    }
    .zhaoan-hero-download-badge {
        display: flex;
        justify-content: center;
        margin: 0 auto;
    }
    .zhaoan-hero-accent {
        display: none;
    }
    .zhaoan-nav {
        position: fixed;
        top: var(--zhaoan-header-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 16px 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
        transform: translateY(-120%);
        opacity: 0;
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
        z-index: 999;
    }
    .zhaoan-nav.zhaoan-nav-open {
        transform: translateY(0);
        opacity: 1;
    }
    .zhaoan-nav-list {
        flex-direction: column;
        gap: 4px;
    }
    .zhaoan-nav-link {
        padding: 12px 16px;
        font-size: 1rem;
        border-radius: 10px;
    }
    .zhaoan-mobile-menu-btn {
        display: flex;
    }
    .zhaoan-features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .zhaoan-security-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .zhaoan-eco-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }
    .zhaoan-showcase-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .zhaoan-showcase-img {
        height: 200px;
    }
    .zhaoan-section-container {
        padding: 56px 20px;
    }
    .zhaoan-download {
        padding: 70px 20px;
    }
    .zhaoan-download-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .zhaoan-download-content {
        text-align: center;
    }
    .zhaoan-download-actions {
        align-items: center;
    }
    .zhaoan-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .zhaoan-visual {
        padding: 0 20px;
    }
    .zhaoan-visual-caption {
        bottom: 14px;
        left: 18px;
        font-size: 0.8rem;
        padding: 6px 14px;
    }
    .zhaoan-section-header {
        text-align: center;
    }
    .zhaoan-section-desc {
        margin: 0 auto;
    }
    .zhaoan-perf-content {
        text-align: center;
    }
    .zhaoan-perf-list-item {
        justify-content: center;
    }
    .zhaoan-faq-list {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .zhaoan-hero-title {
        font-size: 1.8rem;
    }
    .zhaoan-hero-subtitle {
        font-size: 0.95rem;
    }
    .zhaoan-btn {
        padding: 12px 22px;
        font-size: 0.9rem;
        min-height: 44px;
    }
    .zhaoan-hero-buttons {
        gap: 10px;
    }
    .zhaoan-eco-grid {
        grid-template-columns: 1fr;
    }
    .zhaoan-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .zhaoan-feature-card-img img {
        height: 180px;
    }
    .zhaoan-section-title {
        font-size: 1.35rem;
    }
    .zhaoan-download-title {
        font-size: 1.5rem;
    }
    .zhaoan-btn-download {
        padding: 14px 28px;
        font-size: 1rem;
    }
}