/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: #f5f5f5; color: #2c2c2c; overflow-x: hidden; line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img {max-width: 100%; height: auto; display: block; }
a {text-decoration: none; color: inherit; transition: color 0.2s ease; }
button {cursor: pointer; border: none; font-family: inherit; outline: none; }
ul, ol {list-style: none; }
/* === CSS VARIABLES === */
:root {
    --primary: #7245e3;
    --primary-dark: #5a35b8;
    --primary-light: #9b50e5;
    --gradient-primary: linear-gradient(135deg, #7245e3, #9b50e5);
    --gradient-cta: linear-gradient(to right, #3b1c9a, #854ce9);
    --gradient-btn: linear-gradient(to left, #9b50e5, #7245e3);
    --accent-yellow: #ffb200;
    --accent-green: #00ff0d;
    --bg-page: #e8e8e8;
    --bg-white: #ffffff;
    --bg-dark: #000000;
    --text-primary: #2c2c2c;
    --text-secondary: #555555;
    --text-muted: #888888;
    --border-light: #eeeeee;
    --border-medium: #cdcdcd;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-purple: 0 8px 24px rgba(114,69,227,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
    --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
    --transition-fast: 0.15s var(--ease-out);
    --transition-normal: 0.3s var(--ease-out);
    --transition-slow: 0.5s var(--ease-out);
    --max-width: 1200px;
}
/* === Shared css === */
.arrow-right {
    -webkit-mask: url("/assets/images/svg/arrow-right.svg") no-repeat center;
    mask: url("/assets/images/svg/arrow-right.svg") no-repeat center;
}
.arrow {
    -webkit-mask: url("/assets/images/svg/arrow.svg") no-repeat center;
    mask: url("/assets/images/svg/arrow.svg") no-repeat center;
}
.link-building {
    -webkit-mask: url("/assets/images/svg/link-building.svg") no-repeat center;
    mask: url("/assets/images/svg/link-building.svg") no-repeat center;
}
.content-marketing {
    -webkit-mask: url("/assets/images/svg/content-marketing.svg") no-repeat center;
    mask: url("/assets/images/svg/content-marketing.svg") no-repeat center;
}
.on-pages-seo {
    -webkit-mask: url("/assets/images/svg/on-pages-seo.svg") no-repeat center;
    mask: url("/assets/images/svg/on-pages-seo.svg") no-repeat center;
}
.seo-services {
    -webkit-mask: url("/assets/images/svg/seo-services.svg") no-repeat center;
    mask: url("/assets/images/svg/seo-services.svg") no-repeat center;
}
.website-hosting {
    -webkit-mask: url("/assets/images/svg/website-hosting.svg") no-repeat center;
    mask: url("/assets/images/svg/website-hosting.svg") no-repeat center;
}
.web-development {
    -webkit-mask: url("/assets/images/svg/web-development.svg") no-repeat center;
    mask: url("/assets/images/svg/web-development.svg") no-repeat center;
}
.technical-seo {
    -webkit-mask: url("/assets/images/svg/technical-seo.svg") no-repeat center;
    mask: url("/assets/images/svg/technical-seo.svg") no-repeat center;
}
.arrow,.arrow-right,.link-building, .content-marketing, .on-pages-seo, .seo-services, .website-hosting, .web-development, .technical-seo {
    -webkit-mask-size: contain;
    mask-size: contain;
    background-color: var(--primary);
}
.card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: all var(--transition-normal); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-purple); border-color: rgba(114,69,227,0.2); }
.load-more { margin-top:48px; text-align: center;}
.btn-load-more { background: #000; color: #fff; font-size: 15px; font-weight: 600; padding: 14px 36px; border-radius: 10px; border: 1px solid var(--border-light); transition: all var(--transition-fast); box-shadow: var(--shadow-sm);}
.btn-load-more:hover {background: var(--primary-dark); border-color: var(--primary); box-shadow: 0 6px 20px rgba(114,69,227,0.35); }
.hero-grid-text span {background: linear-gradient(135deg, #ffb200, #f97316);-webkit-background-clip: text;background-clip: text;-webkit-text-fill-color: transparent;color: transparent;}
.hero-btn a:hover {transform:translateY(-2px);}
.light-btn {padding:10px 28px;border-radius:50px;background:linear-gradient(to right, #ffb200, #ff8c00);}
.btn-white {background: #fff;color: #3a3a3a;font-size: 16px;font-weight: 700;padding: 14px 28px;border-radius: 10px;transition: all var(--transition-fast);}
.btn-white:hover { box-shadow: 0 4px 15px rgba(255,255,255,0.3); transform: scale(1.02); }
.btn-primary {background: var(--gradient-primary);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    padding: 14px 28px;
    border-radius: 10px;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(114, 69, 227, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 8px;}
/* === HEADER ===*/
.header {
    position: fixed;
    top: 0;
    z-index: 100;
    width: 100%;
    padding: 12px 40px;
    background: transparent;
    transition: background var(--transition-normal);
}
.nav {
	max-width: 1203px;
	margin: 0 auto;
	height: 80px;
	border-radius: 50px;
	border: 1px solid rgba(14,17,27,0.15);
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 27px;
	background: var(--bg-white);
	transition: all var(--transition-normal);
}
.nav-logo {width: 120px; border-radius: 5px; transition: transform var(--transition-fast);}
.nav-logo:hover { transform: scale(1.02);}
.nav-links { display: flex; align-items: center; gap: 28px;}
.nav-link {
	font-size: 16px;
	font-weight: 600;
	color: var(--text-primary);
	position: relative;
	padding: 4px 0;
	transition: color var(--transition-fast);
	display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link::after {
	content: '';
	position: absolute;
	bottom: -4px;
	left: 0;
	width: 0;
	height: 2.5px;
	background: var(--gradient-primary);
	border-radius: 2px;
	transition: width var(--transition-normal);
}
.nav-link:hover, .nav-link.active { color: var(--primary);}
.nav-link:hover::after, .nav-link.active::after { width: 100%;}
/*下拉菜单*/
.nav-item {position: relative;}
.nav-item .chevron {
    width: 14px;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .25s;
    flex-shrink: 0;
}
.nav-item .chevron svg {
    width: 10px;
    height: 10px;
    stroke: #888;
    stroke-width: 2.5;
    fill: none;
    transition: stroke .2s;
}
.nav-item:hover .chevron{
    transform: rotate(180deg);
}
.nav-item::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0px;
    width: 100%;
    height: 16px;
}
.dropdown {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, .12), 0 0 0 1px rgba(0, 0, 0, .05);
    padding: 12px;
    min-width: 580px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(-8px);
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
    z-index: 200;
}
.nav-item:hover .dropdown{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background: #fff;
    border-left: 1px solid rgba(0, 0, 0, .06);
    border-top: 1px solid rgba(0, 0, 0, .06);
    transform: translateX(-50%) rotate(45deg);
    border-radius: 2px 0 0 0;
}
.dropdown-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: 10px;
    text-decoration: none;
    transition: background .18s;
    cursor: pointer;
}
.dropdown-item:hover {
    background: linear-gradient(45deg, #ede9fe, #fff 60%, #ede9fe 100%);
    box-shadow: var(--shadow-sm);
}
.di-icon {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: #7f40f01a;
}
.di-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.di-title {
    font-size: 0.83rem;
    font-weight: 700;
    color: #1a1a2e;
    transition: color .18s;
}
.di-desc {
    font-size: 0.72rem;
    color: #999;
    line-height: 1.4;
}
/*手机下拉*/
.hamburger {
	display: none;
	flex-direction: column;
	gap: 5px;
	padding: 8px;
	background: none;
}
.hamburger span {
	width: 22px;
	height: 2.5px;
	background: var(--text-primary);
	border-radius: 2px;
	transition: all var(--transition-normal);
	transform-origin: center;
}

.hamburger.open span:nth-child(1) {
	transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
	opacity: 0;
}

.hamburger.open span:nth-child(3) {
	transform: rotate(-45deg) translate(5px, -5px);
}
/* Mobile Menu */
.mobile-menu {
	display: none;
	position: absolute;
	left: 12px;
	right: 12px;
	top: 72px;
	background: var(--bg-white);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-lg);
	border: 1px solid var(--border-light);
	padding: 12px;
	z-index: 100;
	opacity: 0;
	transform: translateY(-8px);
	transition: all var(--transition-normal);
}
.mobile-menu.open {
    margin: 0 6px;
	display: block;
	opacity: 1;
	transform: translateY(0);
}
.mobile-menu a {
	display: block;
	padding: 14px 16px;
	font-weight: 600;
	font-size: 15px;
	border-radius: var(--radius-sm);
	transition: all var(--transition-fast);
}
.mobile-menu a:hover {
	background: #f3e8ff;
	color: var(--primary);
}
.mobile-dropdown-header{
    display:flex;
    align-items:center;
    justify-content:space-between;
}
.mobile-link{
    flex:1;
    display:block;
    padding:16px 0;
    text-decoration:none;
}
.mobile-toggle{
    width: 25px;
    height: 25px;
    display:flex;
    justify-content:center;
    align-items:center;
    cursor:pointer;
    border: 1px #bbb solid ;
    border-radius: 5px;
}
.mobile-toggle svg{
    width:12px;
    height:12px;
}
.mobile-toggle polyline{
    fill:none;
    stroke-width:1.5;
    transition:.3s;
}
.mobile-dropdown.active .mobile-toggle svg{
    transform:rotate(180deg);
}
.mobile-submenu{
    max-height:0;
    overflow:hidden;
    transition:max-height .35s ease;
    padding-left:30px;
}
.mobile-dropdown.active .mobile-submenu{
    max-height:500px;
}
.mobile-submenu li{
    list-style:none;
}
.mobile-submenu a{
    display:block;
    padding:12px 0;
    text-decoration:none;
    font-size:15px;
}
.mobile-submenu a:hover{
    color:#fff;
}
.di-icon span {
    width: 22px;
    height: 22px;
}
.btn-connect {
    display: inline-flex;
	align-items: center;
	background: var(--bg-dark);
	color: #fff;
	font-size: 15px;
	font-weight: 700;
	padding: 0 28px;
	height: 48px;
	border-radius: 10px;
	transition: all var(--transition-fast);
	box-shadow: 0 2px 8px rgba(114,69,227,0.2);
}
.btn-connect:hover {
	background: var(--primary-dark);
	box-shadow: 0 6px 20px rgba(114,69,227,0.35);
	transform: translateY(-1px);
}
/* === SECTION HERO === */
.hero-section {position:relative; padding:138px 0 60px; background:#081828;overflow: hidden;}
.hero-section:before{top: -100px; right: -100px; background: #9810fa; opacity: 0.4;}
.hero-section:after {bottom: -150px;left: -100px;background: #ff6900;opacity: 0.2;}
.hero-section:before,.hero-section:after{content: '';position: absolute;width: 500px;height: 500px;border-radius: 50%;filter: blur(120px);}
.hero-grid {max-width:1200px;margin:0 auto;display:grid; gap:40px;grid-template-columns:1.4fr 1fr; align-items:center; overflow: hidden;padding:48px;position: relative;z-index: 10;}
.hero-grid-text {}
.hero-grid-text h1 {font-size:42px;color:#fff;font-weight:900;line-height:1.15;Margin-bottom:24px;}
.hero-grid-text p {font-size:16px; color:#e8e8e8;line-height:1.7;Margin-bottom:24px;}
.hero-btn {display:flex; gap:16px; color:#fff;align-items:center;}
.hero-grid-visual {max-width:400px;}
.hero-banner {position:relative;padding-top:160px;padding-bottom:80px;background-color: #081828;background-image: url(/assets/images/svg/hero-banner-bg.svg); background-size: cover; background-position: right; background-repeat: no-repeat;box-shadow: 0px 7px 30px rgba(0, 0, 0, 0.075);}
.hero-banner h1{ font-size:26px;color:#fff;text-align:center;}
/* === SECTION HEADERS === */
.section-header { text-align: center; margin-bottom: 40px; }
.section-header h2 { font-size: 32px; font-weight: 800; margin-bottom: 10px; letter-spacing: -0.5px; }
.section-header p { font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }
/* === Stats Bar === */
.stats-bar { padding: 60px 40px; background: #fff;}
.stats-bar-inner { max-width: var(--max-width); margin: 0 auto; background: var(--gradient-primary); border-radius: var(--radius-xl); padding: 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item h3 { font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 4px; }
.stat-item p { font-size: 14px; color: rgba(255,255,255,0.8); }

/* === CTA BANNER === */
.cta-banner { padding: 40px; }
.cta-inner { max-width: var(--max-width); margin: 0 auto; background: var(--gradient-primary); border-radius: var(--radius-xl); padding: 36px 48px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-inner h2 { color: #fff; font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.cta-inner p { color: rgba(255,255,255,0.9); font-size: 16px; }

/* === FOOTER === */
.footer {background: var(--bg-dark);border-radius: var(--radius-xl) var(--radius-xl) 0 0;box-shadow: 0 -10px 15px rgba(0,0,0,0.25);padding: 55px 40px 32px;}
.footer-inner {max-width: var(--max-width);margin: 0 auto;}
.footer-card {background: var(--bg-white);border-radius: var(--radius-xl);box-shadow: 0 4px 4px rgba(255,255,255,0.25);border: 1px solid var(--border-medium);padding: 50px;margin-bottom: 40px;}
.footer-grid {display: grid;grid-template-columns: 1.5fr 1fr 1fr 1fr;gap: 32px;}
.footer-logo {height: 55px;width: auto;border-radius: 20px;margin-bottom: 24px;}
.footer-desc {font-size: 14px;color: #333;margin-bottom: 24px;max-width: 272px;line-height: 1.6;}
.social-links {display: flex;gap: 8px;}
.social-link {width: 36px;height: 36px;border-radius: 6px;display: flex;align-items: center;justify-content: center;transition: all var(--transition-fast);}
.social-link:hover {transform: scale(1.1) translateY(-2px);}
.social-link.fb {background: #006aff;}
.social-link.tg {background: #00a5ff;}
.social-link.wa {background: #15b800;}
.social-link.vb {background: #8800ff;}
.footer-col h3 {font-size: 18px;font-weight: 700;margin-bottom: 14px;position: relative;}
.footer-col h3::after {content: '';position: absolute;bottom: -4px;left: 0;width: 80px;height: 2.5px;background: linear-gradient(45deg, #8800ff, #6f47e3);border-radius: 2px;transition: width var(--transition-normal);}
.footer-col ul li {margin-bottom: 10px;}
.footer-col ul li a {font-size: 15px;font-weight: 500;color: #444;transition: all var(--transition-fast);}
.footer-col ul li a:hover {color: var(--primary);padding-left: 4px;}
.footer-pay .payment-list {display: flex;flex-direction: column;align-items: flex-start;gap: 8px;}
.payment-icon {padding:4px 10px; border-radius:5px; border:1px solid #dbdbdb;}
.payment-list img {width: 60px;height: 26px;}
.footer-bottom {display: flex;align-items: center;justify-content: space-between;padding-top: 8px;}
.footer-bottom p {color: #fff;font-size: 14px;font-weight: 500;}
.footer-bottom a {color: rgba(255,255,255,0.8);font-size: 14px;font-weight: 500;}
.footer-bottom a:hover {color: var(--primary-light);}
.back-to-top { position: fixed; bottom: 100px; right: 32px; width: 48px; height: 48px; background: var(--gradient-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(114,69,227,0.3); opacity: 0; transform: translateY(20px); transition: all var(--transition-normal); z-index: 90; }
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(114,69,227,0.4); }
.back-to-top svg { width: 20px; height: 20px; }