/*
Theme Name: KRimg2
Theme URI:
Author:
Description: AI 图像生成会员站主题——支持多轮对话式图像创作、会员积分体系与商用授权展示。当前版本包含会员系统（注册登录、套餐管理、积分钱包、人工开通审核）与 AI 图像生成（多轮对话式创作、积分消耗、主题外观设置）。
Version: 0.5.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: krimg2
*/

:root {
	--krimg-primary: #5B4FE9;
	--krimg-primary-dark: #4638C2;
	--krimg-primary-soft: #EEECFC;
	--krimg-accent: #F59E0B;
	--krimg-text: #1F2430;
	--krimg-muted: #6B7280;
	--krimg-bg: #FAFAFC;
	--krimg-card-bg: #FFFFFF;
	--krimg-border: #E7E5F0;
	--krimg-success: #16A34A;
	--krimg-error: #DC2626;
	--krimg-radius: 14px;
	--krimg-radius-sm: 10px;
	--krimg-shadow-sm: 0 1px 2px rgba(31, 36, 48, 0.05);
	--krimg-shadow-md: 0 8px 24px rgba(31, 36, 48, 0.07);
	--krimg-shadow-lg: 0 20px 45px rgba(91, 79, 233, 0.14);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
	color: var(--krimg-text);
	background: var(--krimg-bg);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}
a { color: var(--krimg-primary); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--krimg-primary-dark); }
img { max-width: 100%; height: auto; }
:focus-visible { outline: 2px solid var(--krimg-primary); outline-offset: 2px; }

.krimg-container {
	max-width: 1100px;
	margin: 0 auto;
	padding: 0 24px;
}

.krimg-icon {
	width: 1.15em;
	height: 1.15em;
	display: inline-block;
	vertical-align: -0.22em;
	flex-shrink: 0;
}

/* Header */
.krimg-site-header {
	background: rgba(255, 255, 255, 0.85);
	backdrop-filter: saturate(160%) blur(8px);
	border-bottom: 1px solid var(--krimg-border);
	position: sticky;
	top: 0;
	z-index: 100;
}
.krimg-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 68px;
	gap: 16px;
}
.krimg-logo { display: flex; align-items: center; }
.krimg-logo img { max-height: 40px; width: auto; display: block; }
.krimg-logo-text {
	font-weight: 800;
	font-size: 20px;
	color: var(--krimg-text);
	display: inline-flex;
	align-items: center;
	gap: 8px;
	letter-spacing: -0.01em;
}
.krimg-logo-mark { width: 34px; height: 34px; color: var(--krimg-primary); flex-shrink: 0; }
.krimg-main-nav { display: flex; align-items: center; gap: 4px; }
.krimg-main-nav a {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	margin-left: 4px;
	padding: 8px 14px;
	border-radius: 999px;
	font-weight: 600;
	font-size: 14.5px;
	color: var(--krimg-text);
}
.krimg-main-nav a .krimg-icon { color: var(--krimg-muted); }
.krimg-main-nav a:hover { background: var(--krimg-primary-soft); color: var(--krimg-primary); }
.krimg-main-nav a:hover .krimg-icon { color: var(--krimg-primary); }
.krimg-main-nav a.krimg-nav-cta { background: var(--krimg-text); color: #fff; }
.krimg-main-nav a.krimg-nav-cta .krimg-icon { color: #fff; }
.krimg-main-nav a.krimg-nav-cta:hover { background: var(--krimg-primary); }

/* Buttons */
.krimg-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 11px 22px;
	border-radius: 10px;
	font-weight: 600;
	font-size: 15px;
	border: 1px solid transparent;
	cursor: pointer;
	transition: background .15s ease, color .15s ease, border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.krimg-btn-primary {
	background: var(--krimg-primary);
	color: #fff;
	box-shadow: 0 6px 16px rgba(91, 79, 233, 0.28);
}
.krimg-btn-primary:hover { background: var(--krimg-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 22px rgba(91, 79, 233, 0.34); }
.krimg-btn-ghost {
	background: var(--krimg-card-bg);
	color: var(--krimg-text);
	border-color: var(--krimg-border);
}
.krimg-btn-ghost:hover { border-color: var(--krimg-primary); color: var(--krimg-primary); transform: translateY(-1px); }
.krimg-btn-disabled {
	background: var(--krimg-bg);
	color: var(--krimg-muted);
	border-color: var(--krimg-border);
	cursor: not-allowed;
}
.krimg-btn-lg { padding: 15px 30px; font-size: 16px; }

/* Hero */
.krimg-hero {
	padding: 100px 0 72px;
	text-align: center;
	position: relative;
	overflow: hidden;
	background:
		radial-gradient(560px circle at 18% -10%, rgba(91, 79, 233, 0.16), transparent 60%),
		radial-gradient(560px circle at 85% 0%, rgba(245, 158, 11, 0.12), transparent 55%);
}
.krimg-hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 7px 16px;
	border-radius: 999px;
	background: var(--krimg-primary-soft);
	color: var(--krimg-primary-dark);
	font-size: 13.5px;
	font-weight: 600;
	margin-bottom: 20px;
}
.krimg-hero h1 {
	font-size: 46px;
	line-height: 1.25;
	margin: 0 auto 18px;
	max-width: 760px;
	letter-spacing: -0.02em;
}
.krimg-hero-sub {
	color: var(--krimg-muted);
	font-size: 18px;
	max-width: 560px;
	margin: 0 auto 36px;
}
.krimg-hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* Features */
.krimg-features { padding: 40px 0 100px; }
.krimg-features-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 24px;
}
.krimg-feature {
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 30px;
	box-shadow: var(--krimg-shadow-sm);
	transition: transform .18s ease, box-shadow .18s ease;
}
.krimg-feature:hover { transform: translateY(-3px); box-shadow: var(--krimg-shadow-md); }
.krimg-feature-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border-radius: 12px;
	background: var(--krimg-primary-soft);
	color: var(--krimg-primary);
	margin-bottom: 16px;
}
.krimg-feature-icon .krimg-icon { width: 22px; height: 22px; }
.krimg-feature h3 { margin: 0 0 8px; font-size: 18px; }
.krimg-feature p { color: var(--krimg-muted); margin-bottom: 0; font-size: 14.5px; }

/* Generic page */
.krimg-page { padding: 56px 0 96px; }
.krimg-page-title { text-align: center; margin-bottom: 40px; font-size: 32px; letter-spacing: -0.01em; }
.krimg-content { max-width: 760px; margin: 0 auto; }
.krimg-content p { margin: 0 0 16px; }

/* Auth forms */
.krimg-auth-form {
	max-width: 420px;
	margin: 0 auto 24px;
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 36px;
	box-shadow: var(--krimg-shadow-md);
}
.krimg-auth-form label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.krimg-auth-form input[type="text"],
.krimg-auth-form input[type="email"],
.krimg-auth-form input[type="password"] {
	width: 100%;
	padding: 11px 14px;
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius-sm);
	font-size: 15px;
	transition: border-color .15s ease, box-shadow .15s ease;
}
.krimg-auth-form input:focus {
	outline: none;
	border-color: var(--krimg-primary);
	box-shadow: 0 0 0 3px var(--krimg-primary-soft);
}
.krimg-auth-form p { margin-bottom: 16px; }
.krimg-auth-form button { width: 100%; }
.krimg-account-guest { max-width: 420px; margin: 0 auto; text-align: center; }

/* Flash messages */
.krimg-flash {
	padding: 13px 16px;
	border-radius: var(--krimg-radius-sm);
	margin-bottom: 20px;
	font-size: 14px;
}
.krimg-flash-success { background: #ECFDF5; color: var(--krimg-success); border: 1px solid #A7F3D0; }
.krimg-flash-error { background: #FEF2F2; color: var(--krimg-error); border: 1px solid #FECACA; }

/* Account dashboard */
.krimg-account-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 24px;
	flex-wrap: wrap;
	gap: 16px;
}
.krimg-account-header form { margin: 0; }
.krimg-account-header h2 { margin: 0; font-size: 24px; }
.krimg-muted { color: var(--krimg-muted); margin: 4px 0 0; }
.krimg-account-cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 16px;
	margin-bottom: 40px;
}
.krimg-card {
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 22px;
	display: flex;
	flex-direction: column;
	gap: 6px;
	justify-content: center;
	box-shadow: var(--krimg-shadow-sm);
}
.krimg-card-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	border-radius: 10px;
	background: var(--krimg-primary-soft);
	color: var(--krimg-primary);
	margin-bottom: 6px;
}
.krimg-card-icon .krimg-icon { width: 18px; height: 18px; }
.krimg-card-label { font-size: 13px; color: var(--krimg-muted); }
.krimg-card-value { font-size: 26px; font-weight: 700; }
.krimg-card-action { flex-direction: row; flex-wrap: wrap; gap: 10px; justify-content: center; }

.krimg-table { width: 100%; border-collapse: collapse; background: var(--krimg-card-bg); border: 1px solid var(--krimg-border); border-radius: var(--krimg-radius); overflow: hidden; box-shadow: var(--krimg-shadow-sm); }
.krimg-table th, .krimg-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--krimg-border); font-size: 14px; }
.krimg-table th { background: var(--krimg-bg); color: var(--krimg-muted); font-weight: 600; }
.krimg-table tr:last-child td { border-bottom: none; }
.krimg-positive { color: var(--krimg-success); font-weight: 600; }
.krimg-negative { color: var(--krimg-error); font-weight: 600; }

/* Pricing */
.krimg-pricing-personal-notice {
	max-width: 480px;
	margin: 40px auto;
	text-align: center;
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 40px 32px;
	box-shadow: var(--krimg-shadow-sm);
}
.krimg-pricing-personal-notice p { color: var(--krimg-muted); margin: 0 0 20px; }
.krimg-pricing-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
	gap: 24px;
	align-items: stretch;
}
.krimg-plan-card {
	position: relative;
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 32px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	box-shadow: var(--krimg-shadow-sm);
	transition: transform .18s ease, box-shadow .18s ease;
}
.krimg-plan-card:hover { transform: translateY(-3px); box-shadow: var(--krimg-shadow-md); }
.krimg-plan-card.is-current { border-color: var(--krimg-primary); box-shadow: 0 0 0 1px var(--krimg-primary); }
.krimg-plan-card.is-recommended { border-color: var(--krimg-primary); box-shadow: var(--krimg-shadow-lg); transform: scale(1.02); }
.krimg-plan-badge {
	position: absolute;
	top: -13px;
	left: 50%;
	transform: translateX(-50%);
	display: inline-flex;
	align-items: center;
	gap: 4px;
	background: var(--krimg-primary);
	color: #fff;
	font-size: 12.5px;
	font-weight: 700;
	padding: 5px 14px;
	border-radius: 999px;
	box-shadow: var(--krimg-shadow-sm);
}
.krimg-plan-badge .krimg-icon { width: 12px; height: 12px; }
.krimg-plan-card h3 { margin: 4px 0 0; font-size: 21px; }
.krimg-plan-price { font-size: 30px; font-weight: 800; margin: 0; letter-spacing: -0.01em; }
.krimg-plan-credits { color: var(--krimg-muted); margin: 0; font-size: 14px; display: flex; align-items: center; gap: 6px; }
.krimg-plan-credits .krimg-icon { color: var(--krimg-accent); }
.krimg-plan-features { list-style: none; padding: 0; margin: 4px 0 0; flex-grow: 1; }
.krimg-plan-features li { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; border-top: 1px solid var(--krimg-border); font-size: 14px; }
.krimg-plan-features li:first-child { border-top: none; }
.krimg-plan-features .krimg-icon { color: var(--krimg-success); margin-top: 2px; }
.krimg-plan-card form { margin: 0; }
.krimg-plan-card .krimg-btn { width: 100%; }
.krimg-pricing-note { text-align: center; color: var(--krimg-muted); font-size: 13px; margin-top: 32px; }

/* Footer */
.krimg-site-footer {
	padding: 32px 0;
	text-align: center;
	color: var(--krimg-muted);
	font-size: 13px;
	border-top: 1px solid var(--krimg-border);
	margin-top: 40px;
}

/* Studio / 多轮对话式创作 */
.krimg-studio { display: flex; flex-direction: column; gap: 16px; }
.krimg-studio-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 12px;
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
	padding: 16px 22px;
	box-shadow: var(--krimg-shadow-sm);
}
.krimg-studio-balance { display: flex; align-items: center; gap: 12px; }
.krimg-balance-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: 10px;
	background: var(--krimg-primary-soft);
	color: var(--krimg-primary);
}
.krimg-balance-icon .krimg-icon { width: 20px; height: 20px; }
.krimg-studio-header strong { font-size: 20px; }
.krimg-studio-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.krimg-thread {
	position: relative;
	min-height: 320px;
	max-height: 60vh;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	gap: 16px;
	padding: 20px;
	background: var(--krimg-card-bg);
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius);
}
.krimg-thread-empty {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	text-align: center;
	color: var(--krimg-muted);
	width: 80%;
}
.krimg-thread-empty-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 52px;
	height: 52px;
	border-radius: 999px;
	background: var(--krimg-primary-soft);
	color: var(--krimg-primary);
	margin-bottom: 12px;
}
.krimg-thread-empty-icon .krimg-icon { width: 26px; height: 26px; }
.krimg-bubble { max-width: 70%; padding: 12px 16px; border-radius: 16px; font-size: 15px; }
.krimg-bubble-user { align-self: flex-end; background: var(--krimg-primary); color: #fff; border-bottom-right-radius: 4px; }
.krimg-bubble-ai { align-self: flex-start; background: var(--krimg-bg); border: 1px solid var(--krimg-border); border-bottom-left-radius: 4px; }
.krimg-bubble-ai img { max-width: 320px; border-radius: 10px; display: block; }
.krimg-bubble-actions { margin-top: 8px; }
.krimg-bubble-pending {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	color: var(--krimg-muted);
}
.krimg-bubble-pending::after {
	content: '';
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: currentColor;
	animation: krimg-pulse 1s ease-in-out infinite;
	box-shadow: 10px 0 0 0 currentColor, 20px 0 0 0 currentColor;
	margin-left: 4px;
}
@keyframes krimg-pulse {
	0%, 80%, 100% { opacity: .25; }
	40% { opacity: 1; }
}
.krimg-bubble-error {
	align-self: flex-start;
	background: #FEF2F2;
	color: var(--krimg-error);
	border: 1px solid #FECACA;
	border-radius: 14px;
	padding: 12px 16px;
	max-width: 70%;
	font-size: 14px;
}
.krimg-generate-row { display: flex; gap: 12px; align-items: flex-end; }
.krimg-attach-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 46px;
	height: 46px;
	border-radius: var(--krimg-radius-sm);
	border: 1px solid var(--krimg-border);
	background: var(--krimg-card-bg);
	color: var(--krimg-muted);
	cursor: pointer;
	flex-shrink: 0;
	transition: border-color .15s ease, color .15s ease;
}
.krimg-attach-btn:hover { border-color: var(--krimg-primary); color: var(--krimg-primary); }
.krimg-attach-preview {
	display: none;
	align-items: center;
	gap: 10px;
	margin-bottom: 12px;
}
.krimg-attach-preview img { width: 52px; height: 52px; object-fit: cover; border-radius: 8px; border: 1px solid var(--krimg-border); }
.krimg-attach-remove {
	width: 24px;
	height: 24px;
	border-radius: 50%;
	border: none;
	background: var(--krimg-border);
	color: var(--krimg-text);
	cursor: pointer;
	font-size: 15px;
	line-height: 1;
}
.krimg-bubble-attachment { max-width: 160px; border-radius: 8px; display: block; margin-bottom: 8px; }
.krimg-generate-form textarea {
	flex: 1;
	padding: 13px 16px;
	border: 1px solid var(--krimg-border);
	border-radius: var(--krimg-radius-sm);
	font-size: 15px;
	font-family: inherit;
	resize: vertical;
	transition: border-color .15s ease, box-shadow .15s ease;
}
.krimg-generate-form textarea:focus {
	outline: none;
	border-color: var(--krimg-primary);
	box-shadow: 0 0 0 3px var(--krimg-primary-soft);
}
.krimg-generate-form button { white-space: nowrap; }
.krimg-generate-form button[disabled] { opacity: .5; cursor: not-allowed; box-shadow: none; }
.krimg-studio-hint { color: var(--krimg-muted); font-size: 13px; margin: 0; }

@media (max-width: 640px) {
	.krimg-hero { padding: 72px 0 56px; }
	.krimg-hero h1 { font-size: 30px; }
	.krimg-header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 10px; }
	.krimg-main-nav { width: 100%; justify-content: space-between; }
	.krimg-main-nav a { margin-left: 0; padding: 8px 10px; font-size: 13.5px; }
	.krimg-account-header { flex-direction: column; align-items: flex-start; }
	.krimg-bubble, .krimg-bubble-error { max-width: 88%; }
	.krimg-generate-row { flex-wrap: wrap; }
	.krimg-generate-row textarea { flex-basis: 100%; order: 3; }
	.krimg-generate-row button[type="submit"] { flex: 1; }
	.krimg-plan-card.is-recommended { transform: none; }
}