:root {
	--blue-deep: #0b4f9c;
	--blue-mid: #1a6fd4;
	--blue-bright: #2b8cff;
	--blue-soft: #5aa8f0;
	--blue-pale: #e8f3fc;
	--blue-ink: #123a6b;
	--yellow: #f5c518;
	--green: #3ecf6e;
	--text: #2a3a4a;
	--text-muted: #666666;
	--white: #ffffff;
	--gray-bg: #f2f5f8;
	--shadow: 0 8px 28px rgba(26, 80, 150, 0.12);
}

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

html {
	scroll-behavior: smooth;
}

body {
	font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
	color: var(--text);
	background: #ffffff;
	line-height: 1.6;
	overflow-x: hidden;
}

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

.float-consult {
	position: fixed;
	right: 16px;
	top: 50%;
	transform: translateY(-50%);
	z-index: 100;
}

.float-consult__btn {
	display: block;
	padding: 0;
	border: none;
	background: transparent;
	cursor: pointer;
	line-height: 0;
}

.float-consult__btn img {
	display: block;
	width: 60px;
	height: auto;
}

.consult-mask {
	position: fixed;
	inset: 0;
	z-index: 120;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px;
	background: rgba(0, 0, 0, 0.45);
}

.consult-mask[hidden] {
	display: none;
}

.consult-panel {
	position: relative;
	z-index: 121;
	width: min(860px, calc(100vw - 48px));
	height: min(720px, calc(100vh - 48px));
	display: flex;
	flex-direction: column;
	background: var(--white);
	border-radius: 12px;
	overflow: hidden;
	box-shadow: 0 16px 48px rgba(0, 40, 100, 0.28);
}

.consult-panel__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 18px;
	background: #ffffff;
	color: #333333;
	font-size: 16px;
	font-weight: 600;
	border-bottom: 1px solid #e8e8e8;
}

.consult-panel__close {
	width: 28px;
	height: 28px;
	border: none;
	border-radius: 50%;
	background: transparent;
	color: #999999;
	font-size: 24px;
	line-height: 1;
	cursor: pointer;
}

.consult-panel__close:hover {
	background: #f5f5f5;
	color: #666666;
}

.consult-panel__frame {
	flex: 1;
	width: 100%;
	border: none;
	background: var(--white);
}

.hero {
	position: relative;
	z-index: 3;
	background-image: url("../images/bg1.png");
	background-repeat: no-repeat;
	background-position: center top;
	background-size: 100% 100%;
	overflow: hidden;
}

.nav {
	position: relative;
	z-index: 5;
	display: flex;
	justify-content: flex-end;
	align-items: center;
	gap: 36px;
	max-width: 1200px;
	margin: 0 auto;
	padding: 28px 40px 0;
}

.nav a {
	color: var(--white);
	font-size: 15px;
	opacity: 0.95;
	transition: opacity 0.2s;
}

.nav a:hover {
	opacity: 1;
}

.nav .btn-outline {
	border: 1.5px solid var(--white);
	border-radius: 22px;
	padding: 8px 22px;
	font-size: 14px;
}

.hero-inner {
	position: relative;
	z-index: 4;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px;
	max-width: 1200px;
	margin: 0 auto;
	padding: 60px 40px 40px;
}

.hero-title {
	display: block;
	margin-bottom: 20px;
	line-height: 0;
}

.hero-title img {
	display: block;
	width: 100%;
	max-width: 420px;
	height: auto;
}

.hero-copy p {
	color: rgba(255, 255, 255, 0.88);
	font-size: 14px;
	max-width: 420px;
	margin-bottom: 36px;
	line-height: 1.8;
}

.hero-btns {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
}

.btn-dl {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	border: none;
	border-radius: 28px;
	padding: 12px 28px;
	font-size: 15px;
	font-weight: 600;
	color: var(--white);
	cursor: pointer;
	transition: transform 0.2s, box-shadow 0.2s;
}

.btn-icon {
	display: block;
	width: 20px;
	height: 20px;
	object-fit: contain;
	flex-shrink: 0;
}

.btn-dl:hover {
	transform: translateY(-2px);
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.btn-ios {
	background: var(--yellow);
}

.btn-android {
	background: var(--green);
}

.phone-mock {
	position: relative;
	justify-self: center;
	width: 260px;
	z-index: 4;
	line-height: 0;
}

.phone-mock img {
	display: block;
	width: 100%;
	height: auto;
    box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.1);
    border-radius: 36px;
}

.section {
	position: relative;
	padding: 80px 40px;
}

.section-inner {
	max-width: 1100px;
	margin: 0 auto;
}

.section-title {
	text-align: center;
	margin-bottom: 48px;
}

.section-title h2 {
	font-size: 38px;
	color: var(--blue-ink);
	font-weight: 700;
	margin-bottom: 12px;
}

.section-title p {
	font-size: 22px;
	color: var(--text-muted);
	margin: 0 auto;
}

.why {
	z-index: 2;
	background-image: url("../images/bg2.png");
	background-repeat: no-repeat;
	background-position: left center;
	background-size: 146px 100%;
	padding-top: 80px;
}

.features {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 28px;
}

.feature {
	text-align: center;
	padding: 28px 18px;
	border-radius: 6px 6px 6px 6px;
	transition: box-shadow 0.25s, opacity 0.25s;
}

.feature-icon {
	display: block;
	width: 40px;
	height: 40px;
	margin: 0 auto 18px;
	object-fit: contain;
}

.feature.active,
.feature:hover {
	box-shadow: 2px 0px 21px 0px rgba(11, 55, 86, 0.1);
	border-radius: 6px 6px 6px 6px;
	opacity: 0.97;
}

.feature h3 {
	font-size: 17px;
	color: var(--blue-ink);
	margin-bottom: 10px;
	font-weight: 700;
}

.feature p {
	font-size: 13px;
	color: var(--text-muted);
	line-height: 1.7;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	line-clamp: 2;
	overflow: hidden;
}

.about {
	z-index: 1;
	background-image: url("../images/bg3.png");
	background-repeat: no-repeat;
	background-position: center center;
	background-size: 100% 100%;
	padding: 90px 40px;
}

.certs {
	position: relative;
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
	max-width: 1100px;
	margin: 0 auto;
}

.cert {
	aspect-ratio: 3 / 4;
	background: var(--white);
	border: 3px solid #c5d4e4;
	border-radius: 4px;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
	overflow: hidden;
	cursor: pointer;
	transition: transform 0.2s, box-shadow 0.2s;
}

.cert:hover {
	transform: translateY(-4px);
	box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14);
}

.cert img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.img-preview {
	position: fixed;
	inset: 0;
	z-index: 200;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 40px;
	background: rgba(0, 0, 0, 0.75);
}

.img-preview[hidden] {
	display: none;
}

.img-preview__img {
	max-width: min(960px, 100%);
	max-height: 90vh;
	object-fit: contain;
	border-radius: 4px;
	box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
	background: var(--white);
}

.img-preview__close {
	position: absolute;
	top: 16px;
	right: 20px;
	width: 40px;
	height: 40px;
	border: none;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.2);
	color: #fff;
	font-size: 28px;
	line-height: 1;
	cursor: pointer;
}

.img-preview__close:hover {
	background: rgba(255, 255, 255, 0.35);
}

.engine {
	z-index: 2;
	background-image: url("../images/bg4.png");
	background-repeat: no-repeat;
	background-position: center center;
	background-size: 100% 100%;
	overflow: hidden;
}

.engine-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.engine-copy h2 {
	font-size: 38px;
	color: #111111;
	font-weight: 700;
	margin-bottom: 18px;
	line-height: 1.35;
}

.engine-copy p {
	font-size: 20px;
	color: var(--text-muted);
	margin-bottom: 28px;
	line-height: 1.85;
	max-width: 420px;
}

.btn-primary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	background: #1F60ED;
	color: var(--white);
	border: none;
	border-radius: 4px;
	padding: 12px 36px;
	font-size: 15px;
	font-weight: 600;
	cursor: pointer;
	transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
	background: var(--blue-deep);
	transform: translateY(-2px);
}

.engine-cards {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	align-items: start;
}

.engine-card {
	aspect-ratio: 1;
	border-radius: 6px;
	padding: 28px 20px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 10px;
	text-align: center;
	box-shadow: 2px 0px 21px 0px rgba(11, 55, 86, 0.1);
	background: var(--white);
	cursor: pointer;
	transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}

.engine-card:nth-child(odd) {
	margin-top: 28px;
}

.engine-icon {
	display: block;
	width: 48px;
	height: 48px;
	object-fit: contain;
}

.engine-icon--active {
	display: none;
}

.engine-card h3 {
	font-size: 16px;
	color: #111111;
	font-weight: 700;
}

.engine-card p {
	font-size: 12px;
	color: var(--text-muted);
	line-height: 1.6;
}

.engine-card:hover {
	background: var(--blue-mid);
	box-shadow: 2px 0px 21px 0px rgba(11, 55, 86, 0.1);
}

.engine-card:hover .engine-icon {
	display: none;
}

.engine-card:hover .engine-icon--active {
	display: block;
}

.engine-card:hover h3,
.engine-card:hover p {
	color: var(--white);
}

.stats {
	position: relative;
	z-index: 3;
	background-image: url("../images/bg5.png");
	background-repeat: no-repeat;
	background-position: center center;
	background-size: 100% 100%;
	padding: 48px 40px;
	margin-top: 20px;
}

.stats-row {
	max-width: 1000px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
	text-align: center;
	color: var(--white);
}

.stat-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 10px;
}

.stat-icon {
	display: block;
	width: 40px;
	height: 40px;
	object-fit: contain;
}

.stat-item .label {
	font-size: 14px;
	opacity: 0.95;
}

.stat-item .num {
	font-size: 32px;
	font-weight: 700;
	letter-spacing: 1px;
	line-height: 1.2;
}

.download.section {
	position: relative;
	z-index: 4;
	padding: 0;
	overflow: visible;
}

.download-content {
	position: relative;
	z-index: 5;
	margin-top: 44px;
	margin-bottom: -44px;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	background-image: url("../images/bg6.png");
	background-repeat: no-repeat;
	background-position: center top;
	background-size: 100% 100%;
	padding: 90px 40px 0;
	min-height: 680px;
}

.qr-wrap {
	display: flex;
	flex-direction: column;
	align-items: center;
	margin-bottom: 28px;
    border-radius: 6px;
    overflow: hidden;
}

.qr-box {
	width: 197px;
	height: 197px;
	border: 10px solid var(--blue-mid);
	background: var(--white);
	overflow: hidden;
	box-sizing: border-box;
}

.qr-box img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.qr-label {
	width: 197px;
	box-sizing: border-box;
	padding: 10px 12px;
	background: var(--blue-mid);
	color: var(--white);
	font-size: 14px;
	font-weight: 600;
	text-align: center;
	line-height: 1.3;
}

.dl-btns {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
	justify-content: center;
	margin-bottom: 48px;
}

.btn-pill {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	background: var(--blue-mid);
	color: var(--white);
	border-radius: 28px;
	padding: 12px 28px;
	font-size: 14px;
	font-weight: 600;
	transition: background 0.2s, transform 0.2s;
}

.btn-pill:hover {
	background: var(--blue-deep);
	transform: translateY(-2px);
}

.phone-stack {
	position: relative;
	z-index: 6;
	width: 100%;
	max-width: 720px;
	margin: 0 auto -160px;
	line-height: 0;
}

.phone-stack img {
	display: block;
	width: 100%;
	height: auto;
}

.footer {
	position: relative;
	z-index: 3;
	background-image: url("../images/bg7.png");
	background-repeat: no-repeat;
	background-position: center center;
	background-size: 100% 100%;
	color: var(--white);
	padding: 160px 40px 28px;
}

.footer-inner {
	max-width: 1200px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: auto 1.4fr 1fr;
	gap: 48px;
	padding-bottom: 40px;
	align-items: start;
}

.footer-qr {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}

.footer-qr-img {
	display: block;
	width: 100px;
	height: 100px;
	object-fit: contain;
	background: var(--white);
	border-radius: 4px;
}

.footer-consult {
	font-size: 12px;
	opacity: 0.9;
	white-space: nowrap;
}

.footer-brand-title {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 14px;
}

.footer-logo {
	display: block;
	width: 36px;
	height: 36px;
	object-fit: contain;
	flex-shrink: 0;
    border-radius: 4px;
}

.footer-brand h3 {
	font-size: 20px;
	font-weight: 700;
	line-height: 1;
}

.footer-brand p {
	font-size: 13px;
	opacity: 0.85;
	line-height: 1.8;
	max-width: 420px;
}

.footer-contact {
	justify-self: end;
	text-align: left;
	padding-right: 80px;
}

.footer-contact h4 {
	font-size: 16px;
	margin-bottom: 18px;
	font-weight: 700;
}

.footer-contact li {
	list-style: none;
	display: flex;
	align-items: center;
	gap: 12px;
	font-size: 13px;
	opacity: 0.9;
	margin-bottom: 14px;
	line-height: 1.5;
}

.footer-icon {
	display: block;
	width: 18px;
	height: 18px;
	object-fit: contain;
	flex-shrink: 0;
}

.copyright {
	text-align: center;
	font-size: 12px;
	opacity: 0.7;
	padding-top: 20px;
	border-top: 1px solid rgba(255, 255, 255, 0.15);
	max-width: 1100px;
	margin: 0 auto;
}

@media (max-width: 960px) {
	.nav {
		gap: 20px;
		padding: 20px 24px 0;
		justify-content: flex-end;
	}

	.nav a {
		font-size: 14px;
	}

	.nav .btn-outline {
		padding: 6px 16px;
		font-size: 13px;
	}

	.hero-inner {
		grid-template-columns: 1fr;
		text-align: center;
		padding: 40px 24px 28px;
		gap: 24px;
	}

	.hero-title {
		margin-bottom: 14px;
	}

	.hero-title img {
		max-width: 320px;
		margin-left: auto;
		margin-right: auto;
	}

	.hero-copy p {
		margin-left: auto;
		margin-right: auto;
		font-size: 13px;
		margin-bottom: 24px;
	}

	.hero-btns {
		justify-content: center;
		gap: 12px;
	}

	.btn-dl {
		padding: 10px 20px;
		font-size: 14px;
	}

	.btn-icon {
		width: 18px;
		height: 18px;
	}

	.phone-mock {
		width: 180px;
	}

	.section {
		padding: 56px 24px;
	}

	.section-title {
		margin-bottom: 32px;
	}

	.section-title h2 {
		font-size: 28px;
	}

	.section-title p {
		font-size: 16px;
	}

	.why {
		padding-top: 56px;
		background-image: none;
	}

	.engine {
		background-image: none;
	}

	.features,
	.stats-row,
	.certs,
	.engine-cards {
		grid-template-columns: 1fr 1fr;
		gap: 16px;
	}

	.feature {
		padding: 20px 12px;
	}

	.feature-icon {
		width: 36px;
		height: 36px;
		margin-bottom: 12px;
	}

	.feature h3 {
		font-size: 15px;
	}

	.feature p {
		font-size: 12px;
	}

	.about {
		padding: 56px 24px;
	}

	.engine-grid {
		grid-template-columns: 1fr;
		gap: 32px;
	}

	.engine-copy h2 {
		font-size: 28px;
	}

	.engine-copy p {
		font-size: 16px;
	}

	.engine-card {
		padding: 20px 14px;
	}

	.engine-card:nth-child(odd) {
		margin-top: 0;
	}

	.engine-icon {
		width: 40px;
		height: 40px;
	}

	.stats {
		padding: 36px 24px;
	}

	.stat-item .num {
		font-size: 26px;
	}

	.download-content {
		padding: 60px 24px 0;
		min-height: 560px;
	}

	.qr-box {
		width: 160px;
		height: 160px;
	}

	.qr-label {
		width: 160px;
		font-size: 13px;
		padding: 8px 10px;
	}

	.btn-pill {
		padding: 10px 18px;
		font-size: 13px;
	}

	.footer {
		padding: 120px 24px 24px;
	}

	.footer-inner {
		grid-template-columns: 1fr;
		gap: 28px;
	}

	.footer-contact {
		justify-self: start;
		padding-right: 0;
	}

	.float-consult__btn img {
		width: 52px;
	}

	.consult-panel {
		width: calc(100vw - 24px);
		height: calc(100vh - 24px);
		border-radius: 10px;
	}
}

@media (max-width: 600px) {
	.nav {
		gap: 10px;
		padding: 16px 12px 0;
		justify-content: flex-end;
		flex-wrap: wrap;
	}

	.nav a {
		font-size: 12px;
	}

	.nav .btn-outline {
		padding: 5px 12px;
		font-size: 12px;
	}

    .hero{
        background-size: 260% 100%;
    }

	.hero-inner {
		padding: 28px 16px 20px;
		gap: 16px;
	}

	.hero-title {
		margin-bottom: 10px;
	}

	.hero-title img {
		max-width: 240px;
	}

	.hero-copy p {
		font-size: 12px;
		line-height: 1.6;
		margin-bottom: 16px;
	}

	.hero-btns {
		flex-wrap: nowrap;
		justify-content: center;
		gap: 8px;
	}

	.btn-dl {
		padding: 8px 12px;
		font-size: 12px;
		border-radius: 22px;
	}

	.btn-icon {
		width: 14px;
		height: 14px;
	}

	.phone-mock {
		width: 150px;
	}

    .phone-mock img {
        border-radius: 20px;
        box-shadow: 6px 6px 6px rgba(0, 0, 0, 0.1);
    }

	.section {
		padding: 40px 16px;
	}

	.section-title {
		margin-bottom: 24px;
	}

	.section-title h2 {
		font-size: 20px;
		margin-bottom: 8px;
	}

	.section-title p {
		font-size: 13px;
	}

	.why {
		padding-top: 40px;
		background-image: none;
	}

	.engine {
		background-image: none;
	}

	.features,
	.stats-row,
	.certs,
	.engine-cards,
	.dl-btns {
		grid-template-columns: 1fr 1fr;
		gap: 10px;
	}

	.dl-btns {
		display: grid;
		margin-bottom: 32px;
	}

	.feature {
		padding: 14px 8px;
	}

	.feature-icon {
		width: 28px;
		height: 28px;
		margin-bottom: 8px;
	}

	.feature h3 {
		font-size: 13px;
		margin-bottom: 6px;
	}

	.feature p {
		font-size: 11px;
		line-height: 1.5;
	}

	.about {
		padding: 40px 16px;
	}

	.certs {
		gap: 10px;
	}

	.engine-copy h2 {
		font-size: 20px;
		margin-bottom: 12px;
	}

	.engine-copy p {
		font-size: 13px;
		margin-bottom: 16px;
	}

	.btn-primary {
		padding: 8px 20px;
		font-size: 13px;
	}

	.engine-card {
		padding: 14px 8px;
		gap: 6px;
	}

	.engine-card:nth-child(odd) {
		margin-top: 0;
	}

	.engine-icon {
		width: 32px;
		height: 32px;
	}

	.engine-card h3 {
		font-size: 12px;
	}

	.engine-card p {
		font-size: 10px;
		line-height: 1.4;
	}

	.stats {
		padding: 28px 16px;
		margin-top: 12px;
	}

	.stat-icon {
		width: 28px;
		height: 28px;
	}

	.stat-item .label {
		font-size: 11px;
	}

	.stat-item .num {
		font-size: 20px;
	}

	.download-content {
		padding: 48px 16px 0;
		min-height: 480px;
		margin-top: 32px;
	}

	.qr-wrap {
		margin-bottom: 20px;
	}

	.qr-box {
		width: 130px;
		height: 130px;
	}

	.qr-label {
		width: 130px;
		font-size: 12px;
		padding: 6px 8px;
	}

	.btn-pill {
		padding: 8px 10px;
		font-size: 11px;
		border-radius: 22px;
		gap: 6px;
	}

	.phone-stack {
		max-width: 100%;
		margin-bottom: -120px;
	}

	.footer {
		padding: 100px 16px 20px;
	}

	.footer-inner {
		gap: 20px;
	}

	.footer-qr-img {
		width: 72px;
		height: 72px;
	}

	.footer-consult {
		font-size: 11px;
	}

	.footer-brand-title {
		gap: 8px;
		margin-bottom: 10px;
	}

	.footer-logo {
		width: 28px;
		height: 28px;
	}

	.footer-brand h3 {
		font-size: 16px;
	}

	.footer-brand p {
		font-size: 12px;
		line-height: 1.6;
	}

	.footer-contact h4 {
		font-size: 14px;
		margin-bottom: 12px;
	}

	.footer-contact li {
		font-size: 12px;
		margin-bottom: 10px;
		gap: 8px;
	}

	.footer-icon {
		width: 14px;
		height: 14px;
	}

	.copyright {
		font-size: 10px;
		padding-top: 14px;
	}

	.float-consult {
		right: 6px;
	}

	.float-consult__btn img {
		width: 44px;
	}
}