:root {
    --bg-deep: #09131f;
    --bg-mid: #0d1a29;
    --bg-soft: #15283d;
    --surface: rgba(15, 30, 47, 0.8);
    --surface-strong: rgba(10, 21, 34, 0.92);
    --surface-light: rgba(255, 255, 255, 0.045);
    --surface-border: rgba(160, 188, 213, 0.18);
    --surface-border-strong: rgba(213, 139, 72, 0.34);
    --text-primary: #edf4fb;
    --text-secondary: #bfd0e3;
    --text-muted: #8ea7bf;
    --ink-primary: #15263a;
    --ink-secondary: #41566d;
    --accent: #d58b48;
    --accent-strong: #f0b37b;
    --accent-cool: #5ea3d6;
    --shadow-soft: 0 18px 40px rgba(2, 10, 21, 0.28);
    --shadow-heavy: 0 26px 70px rgba(2, 10, 21, 0.46);
    --radius-lg: 24px;
    --radius-xl: 32px;
    --panel-top: rgba(18, 35, 54, 0.82);
    --panel-bottom: rgba(10, 21, 34, 0.94);
    --panel-highlight: rgba(94, 163, 214, 0.06);
    --panel-warm: rgba(213, 139, 72, 0.05);
    --panel-overlay: rgba(255, 255, 255, 0.03);
    --font-title: "Noto Serif SC", "Source Han Serif SC", "Georgia", serif;
    --font-body: "Noto Sans SC", "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    color: var(--text-primary);
    background:
        radial-gradient(circle at 14% 16%, rgba(94, 163, 214, 0.14), rgba(94, 163, 214, 0.05) 20%, transparent 42%),
        radial-gradient(circle at 84% 8%, rgba(213, 139, 72, 0.12), rgba(213, 139, 72, 0.04) 16%, transparent 38%),
        radial-gradient(circle at 52% 100%, rgba(37, 73, 108, 0.16), transparent 46%),
        linear-gradient(180deg, #0d1927 0%, #0d1825 30%, #0b1622 68%, #09131f 100%);
    font-family: var(--font-body);
    position: relative;
    isolation: isolate;
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
}

body::before {
    background:
        radial-gradient(circle at 24% 24%, rgba(255, 255, 255, 0.045), transparent 30%),
        radial-gradient(circle at 78% 32%, rgba(255, 255, 255, 0.03), transparent 24%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.022), transparent 36%, rgba(0, 0, 0, 0.06) 100%);
    opacity: 0.72;
    z-index: -2;
}

body::after {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 120px 120px;
    opacity: 0.1;
    z-index: -1;
}

::selection {
    background: rgba(213, 139, 72, 0.35);
    color: #fff;
}

a {
    color: inherit;
}

h1,
h2,
h3,
.img-biaoti,
.biaoti-text p,
.focus-title,
.timeline-title,
.partner-title,
.qualification-carousel-title,
.about-text h2,
.app-content h1 {
    font-family: var(--font-title);
}

.nav-bar0 {
    position: sticky;
    top: 0;
    z-index: 120;
    background: rgba(7, 15, 25, 0.78);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--surface-border);
    box-shadow: 0 14px 36px rgba(1, 7, 15, 0.35);
}

.nav-bar {
    background: transparent !important;
}

.logo img {
    height: 46px;
    filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.28));
}

.nav-menu li a {
    border-radius: 999px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    transition: transform 0.25s ease, color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.nav-menu li a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
}

.dqli {
    color: #08131f !important;
    border-bottom: none !important;
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    box-shadow: 0 14px 28px rgba(213, 139, 72, 0.24);
}

.qiehuan {
    margin-right: 8px;
}

.slider-container,
.img-showcase,
.app-container,
.about-container,
.focus-box,
.timeline-section,
.qualification-carousel-container,
.product-container-lxwm > img:first-child {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
}

.slider-container::after,
.img-showcase::after,
.app-container::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7, 17, 29, 0.04), rgba(7, 17, 29, 0.26));
    pointer-events: none;
    z-index: 0;
}

.slider,
.slider-buttons,
.app-slider,
.slider-nav,
.img-showcase > * {
    position: relative;
    z-index: 1;
}

.slide {
    overflow: hidden;
}

.slide img {
    transform: scale(1.02);
    filter: saturate(0.94) contrast(1.05);
}

.slider-button,
.slider-dot {
    background: rgba(255, 255, 255, 0.42);
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.08);
    transition: transform 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.slider-button:hover,
.slider-dot:hover {
    transform: scale(1.08);
}

.slider-button.active,
.slider-dot.active {
    background: var(--accent);
    box-shadow: 0 0 0 8px rgba(213, 139, 72, 0.16);
}

.cpbthz {
    margin-top: 86px;
}

.cpbt {
    width: auto;
    min-width: 180px;
    height: auto;
    align-items: flex-start;
    gap: 8px;
    padding-left: 0;
    position: relative;
}

.cpbt::before {
    content: none;
}

.cpbt h2 {
    position: relative;
    display: inline-block;
    margin: 0;
    padding-bottom: 14px;
    font-size: 40px;
    letter-spacing: 0.08em;
    line-height: 1.2;
}

.cpbt h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 72px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent-strong), rgba(94, 163, 214, 0.78));
}

.cpbt p {
    margin: 0;
    color: var(--text-muted);
    letter-spacing: 0.32em;
    text-transform: uppercase;
}

.cpbt img {
    display: none;
}

.biaoti-text p,
.focus-title,
.timeline-title,
.partner-title,
.qualification-carousel-title,
.about-text h2 {
    position: relative;
}

.biaoti-text {
    margin-bottom: 16px;
}

.biaoti-text p {
    border-bottom: none;
    display: inline-block;
    height: auto;
    min-height: 0;
    margin: 0;
    font-size: 42px;
    line-height: 1.28;
    padding-bottom: 10px;
}

.biaoti-text p::after,
.focus-title::after,
.timeline-title::after,
.partner-title::after,
.qualification-carousel-title::after,
.about-text h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 74px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), rgba(94, 163, 214, 0.2));
}

.focus-title,
.timeline-title,
.partner-title,
.qualification-carousel-title,
.about-text h2 {
    display: inline-block;
    padding-bottom: 20px;
}

.focus-title {
    padding-bottom: 0;
}

.focus-title::after {
    content: none;
}

.timeline-title {
    display: block;
    width: fit-content;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-bottom: 0;
    text-align: center;
}

.timeline-title::after {
    content: none;
}

.qualification-carousel-title {
    padding-bottom: 0;
}

.qualification-carousel-title::after {
    content: none;
}

.product-item,
.product-item-app,
.chanpingtx-box,
.feature-box,
.dingzhihua-box-top,
.dingzhihua-box-bottom,
.firmware-box,
.timeline-box,
.focus-product-item,
.company-info,
.contact-form,
.app-slide {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(180deg, var(--panel-top), var(--panel-bottom)),
        linear-gradient(140deg, var(--panel-highlight), transparent 58%),
        linear-gradient(320deg, var(--panel-warm), transparent 55%);
    box-shadow: var(--shadow-soft);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.product-item,
.product-item-app,
.feature-box,
.dingzhihua-box-top,
.dingzhihua-box-bottom,
.firmware-box,
.focus-product-item {
    padding: 18px;
}

.product-item::before,
.product-item-app::before,
.feature-box::before,
.firmware-box::before,
.timeline-box::before,
.focus-product-item::before,
.company-info::before,
.contact-form::before,
.app-slide::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.22), transparent 70%);
}

.product-item:hover,
.product-item-app:hover,
.partner-item:hover,
.feature-box:hover,
.dingzhihua-box-top:hover,
.dingzhihua-box-bottom:hover,
.firmware-box:hover,
.timeline-box:hover,
.focus-product-item:hover,
.app-slide:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--surface-border-strong);
}

.product-item img,
.product-item-app img,
.feature-image-container img,
.dingzhihua-image,
.firmware-box img,
.app-image img,
.about-image img,
.qualification-box img,
.focus-product-item img,
.partner-item img {
    display: block;
    border-radius: 20px;
}

.product-item img,
.product-item-app img,
.app-image img,
.about-image img {
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
}

.product-item h3,
.product-item-app h3 {
    margin: 24px 0 14px;
    letter-spacing: 0.05em;
}

.product-btn,
.app-download,
.app-account-delete,
.submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    color: #0a1524;
    font-weight: 700;
    letter-spacing: 0.08em;
    box-shadow: 0 14px 32px rgba(213, 139, 72, 0.22);
    transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.product-btn::after {
    content: "↗";
    margin-left: 8px;
    font-size: 14px;
}

.product-btn:hover,
.app-download:hover,
.app-account-delete:hover,
.submit-btn:hover {
    transform: translateY(-2px);
    filter: saturate(1.05);
    box-shadow: 0 18px 38px rgba(213, 139, 72, 0.28);
}

.product-item-app a {
    display: block;
}

.img-showcase {
    isolation: isolate;
}

.img-showcase::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(8, 17, 28, 0.74), rgba(8, 17, 28, 0.48) 38%, rgba(8, 17, 28, 0.24) 68%, rgba(8, 17, 28, 0.12)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0));
    z-index: -1;
}

.img-biaoti {
    letter-spacing: 0.08em;
    text-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.img-text {
    max-width: 620px;
    color: var(--text-secondary);
    line-height: 1.85;
}

.nav-bar1 {
    border-bottom: none;
    margin: 24px 0 34px;
}

.nav-bar2 {
    background: rgba(255, 255, 255, 0.038);
    border: 1px solid var(--surface-border);
    border-radius: 999px;
    backdrop-filter: blur(14px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.16);
}

.nav-text p {
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.1em;
}

#tabs {
    gap: 10px;
}

#tabs button:nth-child(1) {
    color: var(--text-secondary);
}

#tabs button,
#tabs button:focus {
    width: auto;
    min-width: 150px;
    padding: 0 28px;
    border: 1px solid transparent;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.036);
    color: var(--text-secondary);
    transition: all 0.25s ease;
}

#tabs button:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.055);
    border-color: rgba(255, 255, 255, 0.06);
}

.tab-button.is-active {
    color: #fff !important;
    background: linear-gradient(135deg, rgba(213, 139, 72, 0.14), rgba(94, 163, 214, 0.12)) !important;
    border-color: rgba(213, 139, 72, 0.35) !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 14px 26px rgba(0, 0, 0, 0.18);
}

.ai-corner img {
    border-radius: 28px;
    box-shadow: var(--shadow-heavy);
}

.left-text,
.right-text {
    padding: 28px 0;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(180deg, rgba(16, 32, 50, 0.84), rgba(10, 21, 34, 0.92)),
        linear-gradient(145deg, rgba(94, 163, 214, 0.05), transparent 58%);
    box-shadow: var(--shadow-soft);
}

.ai-corner h3 {
    color: #fff;
    line-height: 1.35;
}

.ai-corner p,
.shoubiao-text,
.timeline-box p,
.about-text p,
.app-content p,
.company-info p {
    color: var(--text-secondary);
}

.chanpingtx-box {
    padding: 22px 18px 18px;
}

.chanpingtx-box img {
    width: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
}

.chanpingtx-name,
.feature-name,
.product-name,
.feature-text h3,
.dingzhihua-text,
.focus-product-item p {
    color: var(--text-primary);
}

.jiezi-corner,
.jiezi-corner2 {
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    background-size: cover;
    background-position: center;
}

.jiezi-corner p,
.jiezi-corner2 p {
    text-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
}

.shoubiao-text {
    height: auto;
    min-height: 60px;
    margin-bottom: 24px;
    line-height: 1.9;
}

.feature-box {
    text-align: center;
}

.feature-image-container {
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.03);
}

.feature-image-container img {
    width: 72%;
}

.feature-overlay {
    background: linear-gradient(180deg, rgba(7, 17, 29, 0.1), rgba(7, 17, 29, 0.82));
}

.feature-text {
    color: var(--text-primary);
}

.dingzhihua-text {
    line-height: 1.7;
}

.firmware-box {
    padding: 14px;
}

.firmware-box img {
    background: rgba(255, 255, 255, 0.02);
}

.app-slide {
    gap: 30px;
    padding: 26px;
    align-items: center;
}

.app-container {
    border: none;
    box-shadow: none;
    background: transparent;
}

.app-container::after {
    content: none;
}

.app-image {
    position: relative;
}

.app-image::before {
    content: "";
    position: absolute;
    inset: -18px;
    border-radius: 28px;
    background: radial-gradient(circle, rgba(94, 163, 214, 0.11), transparent 70%);
    filter: blur(14px);
    z-index: 0;
}

.app-image img {
    position: relative;
    z-index: 1;
    border: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
}

.app-content h1 {
    margin-bottom: 22px;
    letter-spacing: 0.06em;
}

.app-content p {
    line-height: 1.9;
}

.about-container {
    background:
        linear-gradient(135deg, rgba(11, 23, 37, 0.88), rgba(14, 29, 45, 0.94)),
        radial-gradient(circle at 78% 22%, rgba(94, 163, 214, 0.08), transparent 34%);
}

.about-text {
    background: linear-gradient(90deg, rgba(7, 17, 29, 0.52), rgba(7, 17, 29, 0.18) 72%, rgba(7, 17, 29, 0.06) 100%);
}

.about-text h2 {
    letter-spacing: 0.08em;
}

.about-image {
    background:
        radial-gradient(circle at 40% 30%, rgba(94, 163, 214, 0.1), transparent 42%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.012));
}

.about-image img {
    width: min(100%, 760px);
}

.about-image-mobile {
    display: none;
}

.focus-box,
.timeline-section,
.qualification-carousel-container {
    background:
        linear-gradient(180deg, rgba(15, 30, 47, 0.82), rgba(10, 21, 34, 0.92)),
        radial-gradient(circle at top, rgba(94, 163, 214, 0.05), transparent 54%);
    border: 1px solid var(--surface-border);
}

.focus-product-item {
    padding: 24px;
}

.focus-product-item img {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 248, 251, 0.98));
    padding: 16px;
}

.timeline-progress-bar {
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
    box-shadow: 0 0 0 8px rgba(213, 139, 72, 0.12);
}

.timeline-dot {
    background: var(--surface);
    border-color: var(--accent);
    box-shadow: 0 0 0 10px rgba(213, 139, 72, 0.12);
}

.timeline-year {
    color: var(--text-secondary);
}

.timeline-box {
    text-align: left;
    align-items: flex-start;
}

.timeline-box h4 {
    margin-bottom: 16px;
    color: var(--accent-strong);
    letter-spacing: 0.06em;
}

.timeline-box p {
    text-align: left;
}

.qualification-btn {
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    color: #0a1524;
    box-shadow: 0 14px 30px rgba(213, 139, 72, 0.22);
}

.qualification-carousel {
    min-height: 430px;
}

.qualification-dots {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-top: 24px;
}

.timeline-dots {
    display: none;
    justify-content: center;
    gap: 14px;
    margin-top: 18px;
}

.timeline-page-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.36);
    cursor: pointer;
    transition: transform 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.timeline-page-dot.active {
    background: var(--accent);
    box-shadow: 0 0 0 8px rgba(213, 139, 72, 0.16);
}

.qualification-dot {
    width: 12px;
    height: 12px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.36);
    cursor: pointer;
    transition: transform 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.qualification-dot.active {
    background: var(--accent-strong);
    box-shadow: 0 0 0 6px rgba(213, 139, 72, 0.12);
    transform: scale(1.08);
}

.qualification-box {
    background:
        linear-gradient(180deg, rgba(12, 25, 40, 0.9), rgba(9, 19, 32, 0.96)),
        linear-gradient(135deg, rgba(94, 163, 214, 0.04), transparent 56%);
    border: none;
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
    opacity: 0.62;
    transform: scale(0.94);
}

.qualification-box.center {
    opacity: 1;
    transform: scale(1.08);
    box-shadow: 0 22px 46px rgba(0, 0, 0, 0.28);
}

.qualification-text {
    color: var(--text-primary);
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: linear-gradient(180deg, rgba(249, 251, 253, 0.98), rgba(238, 243, 247, 0.96));
    box-shadow: 0 18px 34px rgba(3, 10, 19, 0.18);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.partner-grid-4 .partner-item {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(240, 246, 251, 0.08)),
        linear-gradient(135deg, rgba(94, 163, 214, 0.04), rgba(255, 255, 255, 0.02));
    box-shadow: 0 10px 24px rgba(3, 10, 19, 0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
}

.partner-grid-4 .partner-item::before,
.partner-grid-4 .partner-item::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    transition: opacity 0.28s ease;
}

.partner-grid-4 .partner-item::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 45%);
    opacity: 0.7;
}

.partner-grid-4 .partner-item::after {
    background:
        radial-gradient(circle at 50% 50%, rgba(94, 163, 214, 0.12), transparent 62%),
        linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.14), transparent);
    opacity: 0;
}

.partner-grid-4 .partner-item:hover {
    transform: translateY(-3px);
    border-color: rgba(94, 163, 214, 0.26);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(240, 246, 251, 0.11)),
        linear-gradient(135deg, rgba(94, 163, 214, 0.06), rgba(255, 255, 255, 0.03));
    box-shadow: 0 14px 30px rgba(3, 10, 19, 0.16);
}

.partner-grid-4 .partner-item:hover::after {
    opacity: 1;
}

.partner-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.partner-grid-4 .partner-item img {
    position: relative;
    z-index: 1;
    filter: saturate(0.92) contrast(1.03) brightness(0.98);
    transition: transform 0.28s ease, filter 0.28s ease;
}

.partner-grid-4 .partner-item:hover img {
    transform: scale(1.02);
    filter: saturate(1) contrast(1.06) brightness(1);
}

.product-container-lxwm > img:first-child {
    filter: brightness(0.72) saturate(0.86);
}

.company-info {
    background: linear-gradient(180deg, rgba(245, 248, 251, 0.98), rgba(232, 239, 245, 0.96));
    color: var(--ink-primary);
}

.company-info h3,
.contact-form h3 {
    margin-left: 0 !important;
    margin-bottom: 18px;
    font-size: 18px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.company-info h3 {
    color: var(--ink-secondary);
}

.company-info p {
    color: var(--ink-secondary);
}

.company-info p:nth-child(2) {
    color: var(--ink-primary);
    font-family: var(--font-title);
    font-size: 32px;
    line-height: 1.45;
}

.contact-form {
    background:
        linear-gradient(180deg, rgba(11, 24, 39, 0.94), rgba(7, 16, 28, 0.98)),
        linear-gradient(145deg, rgba(94, 163, 214, 0.05), transparent 58%);
}

.contact-form h3 {
    color: var(--accent-strong);
}

.form-group input,
.form-group textarea {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
    transition: border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(191, 208, 227, 0.68);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(213, 139, 72, 0.52);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 0 4px rgba(213, 139, 72, 0.12);
}

.submit-btn {
    margin-left: 0 !important;
}

.submit-btn:disabled {
    cursor: wait;
    opacity: 0.7;
    transform: none;
}

.contact-form-honeypot {
    position: absolute !important;
    left: -10000px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
}

.site-footer {
    border-top: 1px solid var(--surface-border);
    background: rgba(8, 16, 27, 0.86);
    backdrop-filter: blur(18px);
}

.site-footer-inner {
    gap: 8px 18px;
}

.site-footer-copy {
    color: var(--text-secondary);
    letter-spacing: 0.06em;
    line-height: 1.4;
}

.site-footer-record {
    border: 1px solid var(--surface-border);
    background: rgba(255, 255, 255, 0.032);
    transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.site-footer-record:hover {
    color: #fff;
    border-color: rgba(213, 139, 72, 0.34);
    background: rgba(213, 139, 72, 0.1);
}

@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slider-container,
.cpbthz,
.product-item,
.product-item-app,
.app-slide,
.about-container,
.focus-box,
.timeline-section,
.qualification-carousel-container,
.product-container-lxwm {
    animation: revealUp 0.72s ease both;
}

.product-item:nth-child(2),
.product-item-app:nth-child(2),
.partner-item:nth-child(2),
.timeline-box:nth-child(2),
.focus-product-item:nth-child(2),
.firmware-box:nth-child(2) {
    animation-delay: 0.08s;
}

.product-item:nth-child(3),
.product-item-app:nth-child(3),
.partner-item:nth-child(3),
.timeline-box:nth-child(3),
.focus-product-item:nth-child(3),
.firmware-box:nth-child(3) {
    animation-delay: 0.14s;
}

.product-item-app:nth-child(4) {
    animation-delay: 0.2s;
}

@media (max-width: 1100px) {
    .nav-bar2 {
        border-radius: 24px;
    }

    .app-slide {
        padding: 22px;
    }

    .timeline-box {
        text-align: left;
    }
}

@media (max-width: 768px) {
    body::after {
        background-size: 72px 72px;
    }

    .nav-bar0 {
        backdrop-filter: blur(14px);
    }

    .nav-menu li a {
        font-size: 13px;
        letter-spacing: 0.04em;
    }

    .cpbt h2 {
        font-size: 32px;
    }

    .biaoti-text p {
        font-size: 30px;
        line-height: 1.25;
        padding-bottom: 16px;
    }

    .nav-bar2 {
        border-radius: 24px;
    }

    #tabs button,
    #tabs button:focus {
        min-width: 132px;
        padding: 0 18px;
    }

    .product-item,
    .product-item-app,
    .feature-box,
    .dingzhihua-box-top,
    .dingzhihua-box-bottom,
    .firmware-box,
    .focus-product-item,
    .app-slide,
    .company-info,
    .contact-form {
        border-radius: 20px;
    }

    .company-info p:nth-child(2) {
        font-size: 26px;
    }

    .partner-item {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .cpbt {
        min-width: 0;
    }

    .img-text,
    .about-text p,
    .app-content p,
    .company-info p,
    .timeline-box p {
        font-size: 15px;
    }

    .site-footer-copy {
        font-size: 12px;
    }
}