:root {
			--blue: #0b1975;
			--blue-2: #172796;
			--blue-3: #eef2ff;
			--cyan: #78e5d8;
			--cyan-2: #e8fffb;
			--yellow: #ffd21e;
			--text: #09145a;
			--muted: #667089;
			--line: #d9e1ef;
			--bg: #f5f7fb;
			--white: #fff;
			--shadow: 0 12px 30px rgba(9, 20, 90, .08);
			--shadow-2: 0 18px 44px rgba(9, 20, 90, .12);
			--radius: 16px;
		}

		* {
			box-sizing: border-box;
		}

		body {
			margin: 0;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
			color: var(--text);
			background: var(--bg);
			line-height: 1.75;
		}

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

		.container {
			width: min(1180px, calc(100% - 40px));
			margin: 0 auto;
		}

		.topbar {
			position: sticky;
			top: 0;
			z-index: 1000;
			background: rgba(255, 255, 255, .95);
			border-bottom: 1px solid var(--line);
			overflow: visible;
		}

		.nav {
			min-height: 68px;
			display: flex;
			align-items: center;
			justify-content: space-between;
			gap: 18px;
			overflow: visible;
		}

		.brand {
			display: flex;
			align-items: center;
			gap: 10px;
			font-weight: 900;
			color: var(--blue);
			letter-spacing: -.03em;
			white-space: nowrap;
		}

		.brand-mark {
			width: 38px;
			height: 38px;
			display: grid;
			place-items: center;
			border-radius: 12px;
			color: var(--blue);
			background: linear-gradient(135deg, var(--cyan-2), #c9fff6);
			border: 1px solid #bbefe8;
			font-weight: 900;
		}

		.nav-links {
			display: flex;
			align-items: center;
			gap: 6px;
			color: #364163;
			font-size: 14px;
		}

		.nav-links a {
			padding: 8px 11px;
			border-radius: 999px;
		}

		.nav-links a:hover {
			background: #edf2fb;
			color: var(--blue);
		}

		.nav-actions {
			display: flex;
			align-items: center;
			justify-content: flex-end;
			gap: 10px;
			margin-left: auto;
			overflow: visible;
		}

		.language-switcher {
			position: relative;
			z-index: 1001;
			flex: 0 0 auto;
			margin: 0;
			border: 0;
			background: transparent;
			box-shadow: none;
			overflow: visible;
		}

		.language-switcher summary {
			min-height: 36px;
			display: inline-flex;
			align-items: center;
			gap: 8px;
			padding: 0 13px;
			border: 1px solid var(--line);
			border-radius: 999px;
			background: #fff;
			color: var(--blue);
			font-size: 14px;
			font-weight: 900;
			cursor: pointer;
			list-style: none;
			box-shadow: var(--shadow);
		}

		.language-switcher summary::-webkit-details-marker {
			display: none;
		}

		.language-switcher summary::after {
			content: "";
			width: 0;
			height: 0;
			border-left: 4px solid transparent;
			border-right: 4px solid transparent;
			border-top: 5px solid currentColor;
		}

		.language-switcher[open] summary::after {
			transform: rotate(180deg);
		}

		.language-menu {
			position: absolute;
			top: calc(100% + 10px);
			right: 0;
			z-index: 1002;
			width: 340px;
			max-height: min(520px, calc(100vh - 110px));
			display: grid;
			grid-template-columns: repeat(2, minmax(0, 1fr));
			gap: 6px;
			overflow: auto;
			padding: 10px;
			border: 1px solid var(--line);
			border-radius: 18px;
			background: #fff;
			box-shadow: var(--shadow-2);
		}

		.language-menu a {
			min-height: 36px;
			display: flex;
			align-items: center;
			padding: 7px 10px;
			border-radius: 11px;
			color: #364163;
			font-size: 13px;
			font-weight: 800;
		}

		.language-menu a:hover,
		.language-menu a.active {
			background: #edf2fb;
			color: var(--blue);
		}

		.top-btn {
			display: inline-flex;
			align-items: center;
			justify-content: center;
			min-height: 38px;
			padding: 0 18px;
			border-radius: 10px;
			background: var(--yellow);
			color: var(--blue);
			font-weight: 900;
			box-shadow: 0 8px 18px rgba(255, 210, 30, .28);
			white-space: nowrap;
		}

		.hero {
			padding: 70px 0 60px;
			background:
					radial-gradient(circle at 12% 15%, rgba(120, 229, 216, .22), transparent 28%),
					radial-gradient(circle at 90% 8%, rgba(255, 210, 30, .16), transparent 24%),
					linear-gradient(180deg, #f9fbff 0%, #f3f6fb 100%);
			border-bottom: 1px solid var(--line);
		}

		.hero-grid {
			display: grid;
			grid-template-columns: 1.1fr .9fr;
			gap: 44px;
			align-items: center;
		}

		.tag {
			display: inline-flex;
			padding: 4px 12px;
			border-radius: 999px;
			background: #dffff9;
			color: #087268;
			font-size: 12px;
			font-weight: 900;
			letter-spacing: .08em;
			text-transform: uppercase;
			margin-bottom: 18px;
		}

		h1,
		h2,
		h3 {
			margin: 0;
			line-height: 1.22;
			letter-spacing: -.04em;
		}

		h1 {
			font-size: 64px;
			max-width: 760px;
			color: var(--blue);
		}

		.hero-desc {
			max-width: 720px;
			margin: 22px 0 0;
			color: var(--muted);
			font-size: 17px;
		}

		.hero-desc strong {
			color: var(--blue);
		}

		.actions {
			display: flex;
			flex-wrap: wrap;
			gap: 14px;
			margin-top: 32px;
		}

		.btn {
			display: inline-flex;
			align-items: center;
			justify-content: center;
			min-height: 46px;
			padding: 0 22px;
			border-radius: 12px;
			border: 1px solid transparent;
			font-weight: 900;
			transition: transform .18s ease, box-shadow .18s ease;
		}

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

		.btn-primary {
			color: #fff;
			background: var(--blue);
			box-shadow: 0 12px 26px rgba(11, 25, 117, .24);
		}

		.btn-light {
			color: var(--blue);
			background: #fff;
			border-color: var(--line);
			box-shadow: var(--shadow);
		}

		.stats {
			display: grid;
			grid-template-columns: repeat(4, 1fr);
			gap: 14px;
			margin-top: 30px;
		}

		.stat {
			padding: 16px;
			border: 1px solid var(--line);
			border-radius: 16px;
			background: rgba(255, 255, 255, .8);
		}

		.stat b {
			display: block;
			font-size: 24px;
			line-height: 1.15;
			color: var(--blue);
			margin-bottom: 4px;
		}

		.stat span {
			color: var(--muted);
			font-size: 13px;
		}

		.preview {
			padding: 24px;
			border-radius: 28px;
			background: #fff;
			border: 1px solid var(--line);
			box-shadow: var(--shadow-2);
		}

		.paper {
			min-height: 380px;
			border-radius: 20px;
			padding: 24px;
			border: 1px solid #dce4f2;
			background:
					linear-gradient(#e7ecf6 1px, transparent 1px),
					linear-gradient(90deg, #e7ecf6 1px, transparent 1px),
					#fff;
			background-size: 44px 44px;
		}

		.paper-head {
			display: flex;
			justify-content: space-between;
			gap: 10px;
			margin-bottom: 18px;
			color: var(--muted);
			font-size: 13px;
			font-weight: 800;
		}

		.chars {
			display: grid;
			grid-template-columns: repeat(4, 1fr);
			gap: 14px;
			margin-bottom: 14px;
		}

		.char {
			height: 96px;
			display: grid;
			place-items: center;
			border: 2px solid #86d9d1;
			border-radius: 6px;
			background:
					linear-gradient(45deg, transparent 49%, rgba(134, 217, 209, .45) 50%, transparent 51%),
					linear-gradient(-45deg, transparent 49%, rgba(134, 217, 209, .45) 50%, transparent 51%),
					linear-gradient(#86d9d1 0 0) center/100% 1px no-repeat,
					linear-gradient(90deg, #86d9d1 0 0) center/1px 100% no-repeat,
					#fbfffe;
			font-family: KaiTi, "STKaiti", "楷体", serif;
			font-size: 54px;
			color: rgba(9, 20, 90, .82);
		}

		.paper-note {
			margin-top: 22px;
			padding: 15px;
			border-radius: 14px;
			background: #e8fffb;
			border: 1px solid #bbefe8;
			color: #245f5a;
			font-size: 14px;
		}

		section {
			padding: 70px 0;
		}

		.section-title {
			display: flex;
			justify-content: space-between;
			align-items: flex-end;
			gap: 20px;
			margin-bottom: 28px;
		}

		.section-title h2 {
			font-size: 42px;
			color: var(--blue);
		}

		.section-title p {
			max-width: 610px;
			margin: 10px 0 0;
			color: var(--muted);
		}

		.tool-grid {
			display: grid;
			grid-template-columns: repeat(4, 1fr);
			gap: 18px;
		}

		.tool {
			min-height: 208px;
			display: flex;
			flex-direction: column;
			padding: 23px;
			border: 1px solid var(--line);
			border-radius: var(--radius);
			background: #fff;
			box-shadow: var(--shadow);
			transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
		}

		.tool:hover {
			transform: translateY(-4px);
			border-color: #b9c7e3;
			box-shadow: var(--shadow-2);
		}

		.icon {
			width: 42px;
			height: 42px;
			display: grid;
			place-items: center;
			margin-bottom: 18px;
			border-radius: 13px;
			background: var(--cyan-2);
			color: #087268;
			font-weight: 900;
			font-size: 18px;
		}

		.tool h3 {
			font-size: 19px;
			margin-bottom: 10px;
			color: var(--blue);
		}

		.tool p {
			margin: 0 0 16px;
			color: var(--muted);
			font-size: 14px;
		}

		.tool em {
			display: block;
			margin-top: 2px;
			color: #8993a8;
			font-style: normal;
			font-size: 12px;
		}

		.go {
			margin-top: auto;
			color: #05766d;
			font-size: 13px;
			font-weight: 900;
		}

		.dark {
			background: var(--blue);
			color: #fff;
		}

		.dark h2 {
			color: #cbd2ff;
		}

		.dark .section-title {
			display: block;
			text-align: center;
		}

		.dark .section-title p {
			margin-left: auto;
			margin-right: auto;
			color: #dce3ff;
		}

		.why-grid {
			display: grid;
			grid-template-columns: repeat(3, 1fr);
			gap: 26px;
			margin-top: 38px;
			text-align: center;
		}

		.why {
			padding: 20px;
		}

		.why-icon {
			width: 72px;
			height: 72px;
			display: grid;
			place-items: center;
			margin: 0 auto 20px;
			border-radius: 50%;
			background: rgba(120, 229, 216, .12);
			border: 1px solid rgba(255, 255, 255, .22);
			color: var(--cyan);
			font-size: 28px;
			font-weight: 900;
		}

		.why h3 {
			font-size: 18px;
			margin-bottom: 10px;
			color: #fff;
		}

		.why p {
			margin: 0;
			color: #dce3ff;
			font-size: 14px;
		}

		.trust {
			background: #fff;
			border-block: 1px solid var(--line);
		}

		.trust-grid {
			display: grid;
			grid-template-columns: 1fr 1fr;
			gap: 34px;
			align-items: stretch;
		}

		.trust-card,
		.en-card {
			padding: 32px;
			border-radius: 24px;
			border: 1px solid var(--line);
			box-shadow: var(--shadow);
		}

		.trust-card {
			background:
					radial-gradient(circle at 100% 0%, rgba(120, 229, 216, .24), transparent 34%),
					#f7faff;
		}

		.trust-card h2,
		.en-card h2 {
			font-size: 38px;
			color: var(--blue);
			margin-bottom: 16px;
		}

		.trust-card p,
		.en-card p {
			color: var(--muted);
			margin: 0 0 18px;
		}

		.list {
			display: grid;
			gap: 12px;
			padding: 0;
			margin: 24px 0 0;
			list-style: none;
		}

		.list li {
			display: flex;
			gap: 12px;
			align-items: flex-start;
			color: #35405f;
		}

		.check {
			flex: 0 0 24px;
			width: 24px;
			height: 24px;
			display: grid;
			place-items: center;
			border-radius: 50%;
			background: #dffff9;
			color: #087268;
			font-weight: 900;
		}

		.en-card {
			background: linear-gradient(135deg, #111b70, #2430a3);
			color: #fff;
			overflow: hidden;
			position: relative;
		}

		.en-card h2 {
			color: #fff;
		}

		.en-card p {
			color: #e2e7ff;
		}

		.badges {
			display: flex;
			flex-wrap: wrap;
			gap: 10px;
			margin: 24px 0;
		}

		.badge {
			padding: 8px 12px;
			border-radius: 999px;
			background: rgba(255, 255, 255, .12);
			border: 1px solid rgba(255, 255, 255, .18);
			color: #fff;
			font-size: 13px;
			font-weight: 800;
		}

		.faq-grid {
			display: grid;
			grid-template-columns: .9fr 1.1fr;
			gap: 34px;
			align-items: start;
		}

		.faq-intro h2 {
			font-size: 42px;
			color: var(--blue);
			margin-bottom: 14px;
		}

		.faq-intro p {
			margin: 0 0 22px;
			color: var(--muted);
		}

		.sample {
			padding: 20px;
			border-radius: 22px;
			border: 1px solid var(--line);
			background:
					linear-gradient(#dce4f2 1px, transparent 1px),
					linear-gradient(90deg, #dce4f2 1px, transparent 1px),
					#fff;
			background-size: 34px 34px;
			box-shadow: var(--shadow);
		}

		.sample-row {
			display: grid;
			grid-template-columns: repeat(5, 1fr);
			gap: 8px;
		}

		.sample span {
			height: 56px;
			display: grid;
			place-items: center;
			border: 1px solid #86d9d1;
			background: rgba(255, 255, 255, .84);
			font-family: KaiTi, "STKaiti", "楷体", serif;
			font-size: 28px;
		}

		.faq-grid details {
			margin-bottom: 12px;
			border: 1px solid var(--line);
			border-radius: 14px;
			background: #fff;
			box-shadow: var(--shadow);
			overflow: hidden;
		}

		.faq-grid summary {
			display: flex;
			justify-content: space-between;
			gap: 12px;
			cursor: pointer;
			list-style: none;
			padding: 18px 20px;
			font-weight: 900;
		}

		.faq-grid summary::-webkit-details-marker {
			display: none;
		}

		.faq-grid summary::after {
			content: "+";
			flex: 0 0 24px;
			width: 24px;
			height: 24px;
			display: grid;
			place-items: center;
			border-radius: 50%;
			background: #edf2fb;
		}

		.faq-grid details[open] summary::after {
			content: "−";
		}

		.faq-grid details p {
			margin: 0;
			padding: 0 20px 20px;
			color: var(--muted);
			font-size: 14px;
		}

		.cta {
			padding: 78px 0;
		}

		.cta-box {
			padding: 44px;
			border-radius: 28px;
			text-align: center;
			background:
					radial-gradient(circle at 12% 0%, rgba(255, 255, 255, .4), transparent 28%),
					linear-gradient(135deg, #7fe6dc, #9af0e8);
			box-shadow: var(--shadow-2);
		}

		.cta-box h2 {
			font-size: 46px;
			color: var(--blue);
			margin-bottom: 12px;
		}

		.cta-box p {
			max-width: 730px;
			margin: 0 auto 26px;
			color: #24535c;
		}

		footer {
			padding: 34px 0;
			border-top: 1px solid var(--line);
			background: #fff;
			color: var(--muted);
			font-size: 13px;
		}

		.footer-grid {
			display: flex;
			justify-content: space-between;
			align-items: center;
			gap: 20px;
			flex-wrap: wrap;
		}

		.footer-links {
			display: flex;
			flex-wrap: wrap;
			gap: 16px;
		}

		.footer-links a {
			text-decoration: underline;
			text-underline-offset: 4px;
		}

		@media (max-width: 1000px) {
			.hero-grid,
			.trust-grid,
			.faq-grid {
				grid-template-columns: 1fr;
			}

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

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

		@media (max-width: 760px) {
			.container {
				width: min(100% - 28px, 1180px);
			}

			.nav {
				padding: 14px 0;
			}

			.nav-links {
				display: none;
			}

			.nav-actions {
				margin-left: auto;
			}

			.language-switcher summary {
				min-height: 34px;
				padding: 0 12px;
				font-size: 13px;
			}

			.language-menu {
				width: min(300px, calc(100vw - 28px));
				max-height: calc(100vh - 100px);
				grid-template-columns: 1fr;
			}

			.top-btn {
				min-height: 34px;
				padding: 0 13px;
				font-size: 13px;
			}

			.hero {
				padding: 48px 0 44px;
			}

			h1 {
				font-size: 40px;
			}

			.section-title h2,
			.trust-card h2,
			.en-card h2,
			.faq-intro h2,
			.cta-box h2 {
				font-size: 32px;
			}

			.tool-grid,
			.why-grid {
				grid-template-columns: 1fr;
			}

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

			.char {
				height: 110px;
			}

			section {
				padding: 54px 0;
			}

			.cta-box {
				padding: 30px 18px;
			}
		}

		@media (max-width: 430px) {
			.stats {
				grid-template-columns: 1fr;
			}

			.btn {
				width: 100%;
			}
		}

		/* ===== Style fix patch: only adjust styles, no content changes ===== */

		.hero-grid > div > p:not(.hero-desc) {
			max-width: 720px;
			margin: 14px 0 0;
			color: var(--muted);
			font-size: 16px;
		}

		.brand-mark {
			min-width: 42px;
			width: 42px;
			padding: 0 4px;
			font-size: 13px;
			letter-spacing: -.04em;
			text-transform: none;
		}

		.trust-list {
			display: grid;
			gap: 12px;
			padding: 0;
			margin: 24px 0 0;
			list-style: none;
		}

		.trust-list li {
			display: flex;
			gap: 12px;
			align-items: flex-start;
			color: #35405f;
		}

		.quote-box {
			position: relative;
			min-height: 100%;
			padding: 32px;
			border-radius: 24px;
			background: linear-gradient(135deg, #111b70, #2430a3);
			color: #fff;
			border: 1px solid rgba(255, 255, 255, .08);
			box-shadow: var(--shadow-2);
			overflow: hidden;
		}

		.quote-box::before {
			content: "";
			position: absolute;
			right: -90px;
			bottom: -110px;
			width: 280px;
			height: 280px;
			border-radius: 50%;
			background: rgba(120, 229, 216, .20);
			pointer-events: none;
		}

		.quote-box h3,
		.quote-box p,
		.quote-box .badge-row,
		.quote-box .hero-actions {
			position: relative;
			z-index: 1;
		}

		.quote-box h3 {
			font-size: 38px;
			color: #fff;
			margin-bottom: 16px;
		}

		.quote-box p {
			margin: 0 0 18px;
			color: #e2e7ff;
		}

		.badge-row {
			display: flex;
			flex-wrap: wrap;
			gap: 10px;
			margin: 24px 0;
		}

		.hero-actions {
			display: flex;
			flex-wrap: wrap;
			gap: 14px;
			margin-top: 28px;
		}

		.btn-secondary {
			color: var(--blue);
			background: #fff;
			border-color: var(--line);
			box-shadow: var(--shadow);
		}

		.trust-card,
		.quote-box {
			min-height: 100%;
		}

		.faq-intro p + p {
			margin-top: -10px;
		}

		.sample-row {
			grid-template-rows: repeat(2, auto);
		}

		.tool-grid .tool {
			overflow: hidden;
		}

		.tool .icon {
			flex: 0 0 auto;
		}

		@media (max-width: 1000px) {
			.quote-box {
				min-height: auto;
			}
		}

		@media (max-width: 760px) {
			.brand {
				font-size: 15px;
			}

			.brand-mark {
				width: 38px;
				min-width: 38px;
				height: 38px;
				font-size: 12px;
			}

			.hero-grid {
				gap: 30px;
			}

			.preview {
				padding: 16px;
				border-radius: 22px;
			}

			.paper {
				min-height: auto;
				padding: 18px;
			}

			.paper-head {
				flex-direction: column;
				gap: 4px;
			}

			.stats {
				gap: 10px;
			}

			.stat {
				padding: 14px;
			}

			.tool {
				min-height: auto;
			}

			.trust-card,
			.quote-box {
				padding: 24px;
			}

			.quote-box h3 {
				font-size: 32px;
			}

			.sample-row {
				grid-template-columns: repeat(5, minmax(0, 1fr));
			}

			.sample span {
				height: 48px;
				font-size: 24px;
			}

			.footer-grid {
				align-items: flex-start;
			}
		}