/*!
Theme Name: 爱思助手 主题
Theme URI: https://www.i4.cn/
Author: 爱思助手
Author URI: https://www.i4.cn/
Description: 爱思助手苹果设备管理平台官网主题 - 简约科技工具风。主色 #1677FF，辅助色 #1E293B，Inter + PingFang SC。包含设备连接展示、应用资源中心、数据管理、系统修复、刷机工具、软件下载与用户帮助区块，全端响应式、移动优先，支持后台自定义主色、Logo、软件版本、下载链接、功能模块与公告。
Version: 1.0.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: wm-aisi
Tags: custom-logo, custom-menu, featured-images, translation-ready, responsive-layout

This theme, like WordPress, is licensed under the GPL.
Use it to make something cool, have fun, and share what you've learned.
*/

/*--------------------------------------------------------------
>>> TABLE OF CONTENTS:
----------------------------------------------------------------
# Tokens (CSS variables)
# Base
# Layout helpers
# Components
# Section blocks
# Utilities
# Responsive
--------------------------------------------------------------*/

:root {
	/* Colors - overridden from customizer */
	--color-primary: #1677FF;
	--color-primary-dark: #0958D9;
	--color-primary-soft: rgba(22, 119, 255, 0.08);
	--color-secondary: #1E293B;
	--color-accent: #00B6FF;
	--color-bg: #F7F9FC;
	--color-surface: #FFFFFF;
	--color-text: #0F172A;
	--color-muted: #64748B;
	--color-border: #E2E8F0;
	--color-success: #16A34A;
	--color-warning: #F59E0B;
	--color-danger: #DC2626;

	/* Typography */
	--font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	--fs-xs: 12px;
	--fs-sm: 14px;
	--fs-base: 16px;
	--fs-lg: 18px;
	--fs-xl: 20px;
	--fs-2xl: 24px;
	--fs-3xl: 30px;
	--fs-4xl: 36px;
	--fs-5xl: 48px;
	--lh-tight: 1.25;
	--lh-base: 1.6;

	/* Spacing - 8px rhythm */
	--sp-1: 8px;
	--sp-2: 16px;
	--sp-3: 24px;
	--sp-4: 32px;
	--sp-6: 48px;
	--sp-8: 64px;
	--sp-10: 80px;

	/* Radius */
	--r-sm: 8px;
	--r-md: 12px;
	--r-lg: 16px;
	--r-pill: 999px;

	/* Shadow - soft */
	--shadow-soft: 0 1px 2px rgba(15, 23, 42, 0.04), 0 4px 16px rgba(15, 23, 42, 0.06);
	--shadow-elev: 0 6px 24px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.05);
	--shadow-pop: 0 12px 40px rgba(22, 119, 255, 0.18);

	/* Layout */
	--container: 1200px;
	--gutter: 24px;
	--header-h: 64px;
}

/*--------------------------------------------------------------
# Base
--------------------------------------------------------------*/
*, *::before, *::after { box-sizing: border-box; }

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--color-bg);
	color: var(--color-text);
	font-family: var(--font-sans);
	font-size: var(--fs-base);
	line-height: var(--lh-base);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

img, svg, video { max-width: 100%; display: block; }

a { color: var(--color-primary); text-decoration: none; transition: color 200ms ease; }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4, h5, h6 {
	margin: 0 0 var(--sp-2);
	color: var(--color-secondary);
	font-weight: 600;
	line-height: var(--lh-tight);
}

p { margin: 0 0 var(--sp-2); }

button, input, select, textarea {
	font: inherit;
	color: inherit;
}

:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		transition-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		scroll-behavior: auto !important;
	}
}

/*--------------------------------------------------------------
# Layout helpers
--------------------------------------------------------------*/
.wm-container {
	max-width: var(--container);
	margin: 0 auto;
	padding: 0 var(--sp-2);
}

.wm-section {
	padding: var(--sp-6) 0;
}

@media (min-width: 1024px) {
	.wm-section { padding: var(--sp-10) 0; }
}

.wm-section__head {
	text-align: center;
	max-width: 720px;
	margin: 0 auto var(--sp-6);
}

.wm-section__eyebrow {
	display: inline-block;
	font-size: var(--fs-sm);
	font-weight: 600;
	color: var(--color-primary);
	background: var(--color-primary-soft);
	padding: 6px 12px;
	border-radius: var(--r-pill);
	margin-bottom: var(--sp-2);
}

.wm-section__title {
	font-size: var(--fs-3xl);
	margin-bottom: var(--sp-2);
}

.wm-section__desc {
	color: var(--color-muted);
	font-size: var(--fs-lg);
	margin: 0;
}

@media (min-width: 768px) {
	.wm-section__title { font-size: var(--fs-4xl); }
}

/*--------------------------------------------------------------
# Components
--------------------------------------------------------------*/

/* Buttons */
.wm-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 12px 24px;
	border-radius: var(--r-md);
	font-size: var(--fs-base);
	font-weight: 600;
	line-height: 1;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform 180ms ease, box-shadow 200ms ease, background 200ms ease;
	text-decoration: none;
	white-space: nowrap;
}
.wm-btn:hover { transform: translateY(-1px); }
.wm-btn:active { transform: translateY(0); }

.wm-btn--primary {
	background: var(--color-primary);
	color: #fff;
	box-shadow: 0 6px 16px rgba(22, 119, 255, 0.32);
}
.wm-btn--primary:hover {
	background: var(--color-primary-dark);
	color: #fff;
	box-shadow: 0 10px 22px rgba(22, 119, 255, 0.42);
}

.wm-btn--ghost {
	background: transparent;
	color: var(--color-secondary);
	border-color: var(--color-border);
}
.wm-btn--ghost:hover {
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.wm-btn--sm { padding: 8px 16px; font-size: var(--fs-sm); }
.wm-btn--lg { padding: 16px 32px; font-size: var(--fs-lg); }

/* Card */
.wm-card {
	background: var(--color-surface);
	border-radius: var(--r-md);
	padding: var(--sp-3);
	box-shadow: var(--shadow-soft);
	transition: transform 200ms ease, box-shadow 200ms ease;
}
.wm-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow-elev);
}

.wm-card__icon {
	width: 48px;
	height: 48px;
	border-radius: var(--r-sm);
	background: var(--color-primary-soft);
	color: var(--color-primary);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	margin-bottom: var(--sp-2);
}
.wm-card__icon svg { width: 24px; height: 24px; }

.wm-card__title {
	font-size: var(--fs-lg);
	margin-bottom: 8px;
}

.wm-card__desc {
	color: var(--color-muted);
	font-size: var(--fs-sm);
	line-height: 1.55;
	margin: 0;
}

/* Badge / chip */
.wm-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: var(--color-primary-soft);
	color: var(--color-primary);
	font-size: var(--fs-xs);
	font-weight: 600;
	padding: 4px 10px;
	border-radius: var(--r-pill);
}

/* Header / Navigation */
.wm-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid var(--color-border);
}

.wm-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-h);
	gap: var(--sp-2);
}

.wm-site__logo img,
.wm-site__title {
	max-height: 36px;
	width: auto;
}
.wm-site__title {
	font-size: var(--fs-xl);
	font-weight: 700;
	color: var(--color-secondary);
	display: inline-block;
}

.wm-nav { display: none; }

.wm-nav__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: var(--sp-3);
	align-items: center;
}

.wm-nav__link {
	color: var(--color-text);
	font-weight: 500;
	font-size: var(--fs-sm);
	padding: 8px 4px;
	border-bottom: 2px solid transparent;
	transition: color 180ms ease, border-color 180ms ease;
}
.wm-nav__link:hover,
.wm-nav__link.is-active {
	color: var(--color-primary);
	border-bottom-color: var(--color-primary);
}

.wm-header__actions {
	display: flex;
	align-items: center;
	gap: var(--sp-1);
}

.wm-nav-toggle {
	display: inline-flex;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	background: transparent;
	border: 1px solid var(--color-border);
	border-radius: var(--r-sm);
	cursor: pointer;
	padding: 0;
}
.wm-nav-toggle span {
	display: block;
	width: 20px;
	height: 2px;
	background: var(--color-secondary);
	border-radius: 2px;
	margin: 0 auto;
	transition: transform 200ms ease, opacity 200ms ease;
}
.wm-nav-toggle[aria-expanded="true"] span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.wm-nav-toggle[aria-expanded="true"] span:nth-child(2) {
	opacity: 0;
}
.wm-nav-toggle[aria-expanded="true"] span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.wm-mobile-nav {
	display: none;
	border-top: 1px solid var(--color-border);
	background: var(--color-surface);
	padding: var(--sp-2);
}
.wm-mobile-nav.is-open { display: block; }
.wm-mobile-nav__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.wm-mobile-nav__link {
	display: block;
	padding: 12px;
	border-radius: var(--r-sm);
	color: var(--color-text);
	font-weight: 500;
}
.wm-mobile-nav__link:hover {
	background: var(--color-primary-soft);
	color: var(--color-primary);
}

@media (min-width: 1024px) {
	.wm-nav { display: flex; }
	.wm-nav-toggle { display: none; }
	.wm-mobile-nav { display: none !important; }
}

/*--------------------------------------------------------------
# Section blocks
--------------------------------------------------------------*/

/* Announcement bar */
.wm-announce {
	background: var(--color-secondary);
	color: #fff;
	font-size: var(--fs-sm);
	padding: 10px 0;
}
.wm-announce__inner {
	display: flex;
	align-items: center;
	gap: var(--sp-1);
	justify-content: center;
	text-align: center;
}
.wm-announce svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Hero */
.wm-hero {
	position: relative;
	padding: var(--sp-8) 0;
	background:
		radial-gradient(1000px 500px at 80% 0%, rgba(0, 182, 255, 0.18), transparent 60%),
		radial-gradient(800px 400px at 0% 100%, rgba(22, 119, 255, 0.16), transparent 60%),
		var(--color-bg);
	overflow: hidden;
}

.wm-hero__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-6);
	align-items: center;
}

.wm-hero__eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 6px 14px;
	background: rgba(22, 119, 255, 0.12);
	color: var(--color-primary);
	font-size: var(--fs-sm);
	font-weight: 600;
	border-radius: var(--r-pill);
	margin-bottom: var(--sp-3);
}

.wm-hero__title {
	font-size: var(--fs-3xl);
	color: var(--color-secondary);
	line-height: 1.15;
	margin-bottom: var(--sp-2);
}
.wm-hero__title span { color: var(--color-primary); }

.wm-hero__sub {
	color: var(--color-muted);
	font-size: var(--fs-lg);
	margin-bottom: var(--sp-4);
	max-width: 540px;
}

.wm-hero__cta {
	display: flex;
	flex-wrap: wrap;
	gap: var(--sp-1);
	margin-bottom: var(--sp-4);
}

.wm-hero__meta {
	display: flex;
	gap: var(--sp-3);
	flex-wrap: wrap;
	color: var(--color-muted);
	font-size: var(--fs-sm);
}
.wm-hero__meta-item {
	display: inline-flex;
	align-items: center;
	gap: 6px;
}
.wm-hero__meta-item svg { width: 16px; height: 16px; color: var(--color-primary); }

.wm-hero__visual {
	position: relative;
	background: var(--color-surface);
	border-radius: var(--r-lg);
	padding: var(--sp-3);
	box-shadow: var(--shadow-pop);
}

.wm-hero__device {
	aspect-ratio: 4 / 3;
	border-radius: var(--r-md);
	background:
		linear-gradient(135deg, var(--color-secondary), #0b1224);
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #cbd5e1;
	overflow: hidden;
}
.wm-hero__device svg { width: 38%; height: auto; opacity: 0.9; }

.wm-hero__device-tag {
	position: absolute;
	top: 16px;
	left: 16px;
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
	font-size: var(--fs-xs);
	padding: 4px 10px;
	border-radius: var(--r-pill);
	backdrop-filter: blur(6px);
}

.wm-hero__visual-stats {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--sp-1);
	margin-top: var(--sp-2);
}
.wm-hero__stat {
	background: var(--color-bg);
	border-radius: var(--r-sm);
	padding: var(--sp-2);
	text-align: center;
}
.wm-hero__stat strong {
	display: block;
	font-size: var(--fs-xl);
	color: var(--color-primary);
}
.wm-hero__stat span {
	font-size: var(--fs-xs);
	color: var(--color-muted);
}

@media (min-width: 768px) {
	.wm-hero { padding: var(--sp-10) 0; }
	.wm-hero__title { font-size: var(--fs-5xl); }
}

@media (min-width: 1024px) {
	.wm-hero__grid {
		grid-template-columns: 1.05fr 1fr;
		gap: var(--sp-8);
	}
}

/* Feature grid (modules) */
.wm-features {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-2);
}

@media (min-width: 640px) { .wm-features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .wm-features { grid-template-columns: repeat(3, 1fr); } }

/* App center */
.wm-apps {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-3);
}
@media (min-width: 640px) { .wm-apps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .wm-apps { grid-template-columns: repeat(4, 1fr); } }

.wm-app {
	background: var(--color-surface);
	border-radius: var(--r-md);
	padding: var(--sp-2);
	display: flex;
	align-items: center;
	gap: var(--sp-2);
	box-shadow: var(--shadow-soft);
	transition: transform 200ms ease;
}
.wm-app:hover { transform: translateY(-3px); }
.wm-app__icon {
	width: 56px;
	height: 56px;
	border-radius: var(--r-sm);
	background: var(--color-primary-soft);
	color: var(--color-primary);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: var(--fs-lg);
	flex-shrink: 0;
}
.wm-app__name {
	font-weight: 600;
	font-size: var(--fs-base);
	color: var(--color-text);
	margin: 0 0 2px 0;
}
.wm-app__meta {
	font-size: var(--fs-xs);
	color: var(--color-muted);
}

/* Data management: steps */
.wm-steps {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-3);
	counter-reset: step;
}
@media (min-width: 768px) { .wm-steps { grid-template-columns: repeat(3, 1fr); } }

.wm-step {
	background: var(--color-surface);
	border-radius: var(--r-md);
	padding: var(--sp-3);
	box-shadow: var(--shadow-soft);
	position: relative;
}
.wm-step__num {
	counter-increment: step;
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: var(--color-primary);
	color: #fff;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	margin-bottom: var(--sp-2);
}
.wm-step__num::before { content: counter(step); }
.wm-step__title {
	font-size: var(--fs-lg);
	margin-bottom: 6px;
}
.wm-step__desc {
	color: var(--color-muted);
	font-size: var(--fs-sm);
	margin: 0;
}

/* Repair & flash: tabs / split */
.wm-split {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-6);
	align-items: center;
}
@media (min-width: 1024px) {
	.wm-split { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
}

.wm-feature-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: var(--sp-2);
}
.wm-feature-list__item {
	display: flex;
	gap: var(--sp-2);
	align-items: flex-start;
	background: var(--color-surface);
	border-radius: var(--r-md);
	padding: var(--sp-2);
	box-shadow: var(--shadow-soft);
}
.wm-feature-list__icon {
	width: 40px;
	height: 40px;
	flex-shrink: 0;
	border-radius: var(--r-sm);
	background: var(--color-primary-soft);
	color: var(--color-primary);
	display: flex;
	align-items: center;
	justify-content: center;
}
.wm-feature-list__icon svg { width: 20px; height: 20px; }
.wm-feature-list__title { font-weight: 600; margin-bottom: 4px; font-size: var(--fs-base); }
.wm-feature-list__desc { color: var(--color-muted); font-size: var(--fs-sm); margin: 0; }

.wm-mockup {
	background: var(--color-surface);
	border-radius: var(--r-lg);
	padding: var(--sp-3);
	box-shadow: var(--shadow-elev);
}
.wm-mockup__bar {
	display: flex;
	gap: 6px;
	margin-bottom: var(--sp-2);
}
.wm-mockup__bar span {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: var(--color-border);
}
.wm-mockup__bar span:nth-child(1) { background: #ef4444; }
.wm-mockup__bar span:nth-child(2) { background: #f59e0b; }
.wm-mockup__bar span:nth-child(3) { background: #22c55e; }
.wm-mockup__screen {
	background: var(--color-bg);
	border-radius: var(--r-sm);
	aspect-ratio: 16 / 10;
	padding: var(--sp-2);
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 8px;
}
.wm-mockup__tile {
	background: var(--color-surface);
	border-radius: 6px;
	box-shadow: var(--shadow-soft);
}

/* Download block */
.wm-download {
	background: linear-gradient(135deg, var(--color-secondary), #0b1224);
	color: #fff;
	border-radius: var(--r-lg);
	padding: var(--sp-6);
	text-align: center;
}
.wm-download__title { color: #fff; margin-bottom: var(--sp-2); font-size: var(--fs-2xl); }
.wm-download__desc { color: #cbd5e1; margin-bottom: var(--sp-4); }
.wm-download__row {
	display: flex;
	flex-wrap: wrap;
	gap: var(--sp-2);
	justify-content: center;
}
.wm-download__btn {
	background: #fff;
	color: var(--color-secondary);
}
.wm-download__btn:hover { background: var(--color-primary); color: #fff; }
.wm-download__version {
	display: inline-block;
	margin-top: var(--sp-2);
	font-size: var(--fs-sm);
	color: #94a3b8;
}

/* FAQ / help */
.wm-faq {
	max-width: 760px;
	margin: 0 auto;
	display: grid;
	gap: var(--sp-1);
}
.wm-faq__item {
	background: var(--color-surface);
	border-radius: var(--r-md);
	box-shadow: var(--shadow-soft);
	padding: var(--sp-2);
}
.wm-faq__q {
	font-weight: 600;
	color: var(--color-text);
	margin: 0;
}
.wm-faq__a {
	margin: 6px 0 0 0;
	color: var(--color-muted);
	font-size: var(--fs-sm);
}

/* Footer */
.wm-footer {
	background: var(--color-secondary);
	color: #cbd5e1;
	padding: var(--sp-6) 0 var(--sp-3);
	margin-top: var(--sp-6);
}
.wm-footer__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--sp-4);
	margin-bottom: var(--sp-4);
}
@media (min-width: 768px) {
	.wm-footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}
.wm-footer__brand { font-weight: 700; font-size: var(--fs-lg); color: #fff; margin-bottom: var(--sp-1); }
.wm-footer__heading { color: #fff; font-weight: 600; margin-bottom: var(--sp-2); }
.wm-footer__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: var(--fs-sm); }
.wm-footer__list a { color: #cbd5e1; }
.wm-footer__list a:hover { color: #fff; }

.wm-footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	padding-top: var(--sp-2);
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: var(--sp-1);
	font-size: var(--fs-xs);
	color: #94a3b8;
}

/*--------------------------------------------------------------
# Utilities
--------------------------------------------------------------*/
.sr-only {
	position: absolute !important;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0, 0, 0, 0);
	white-space: nowrap; border: 0;
}

.skip-link {
	position: absolute;
	top: -40px;
	left: 8px;
	background: var(--color-primary);
	color: #fff;
	padding: 8px 16px;
	border-radius: var(--r-sm);
	z-index: 1000;
	transition: top 200ms ease;
}
.skip-link:focus { top: 8px; color: #fff; }

/*--------------------------------------------------------------
# Page content (fallback for blog posts)
--------------------------------------------------------------*/
.site-main { display: block; }
.entry-content { max-width: 720px; margin: 0 auto; padding: var(--sp-4) var(--sp-2); }