/**
 * 九流沉浸式预加载 - 前台样式
 * 版本：1.0.6
 * 作者：九流（https://www.jiuliu.org）
 * 许可证：GPLv2+
 */

/* ============== 全局通用 ============== */
#jip-preloader,
#jip-preloader * {
	box-sizing: border-box;
}

#jip-preloader {
	font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
	color: #fff;
	user-select: none;
	-webkit-user-select: none;
	-webkit-tap-highlight-color: transparent;
}

#jip-preloader .jip-stage {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 32px;
	max-width: 90vmin;
}

#jip-preloader .jip-site-title {
	font-size: clamp(18px, 3vw, 28px);
	font-weight: 500;
	letter-spacing: 0.15em;
	text-align: center;
	opacity: 0;
	transform: translateY(20px) scale(0.8);
	transition: opacity .48s cubic-bezier(.2,.7,.2,1) .12s,
				transform .48s cubic-bezier(.2,.7,.2,1) .12s;
	text-shadow: 0 0 20px rgba(255,255,255,0.3);
}

#jip-preloader.jip-titled .jip-site-title,
#jip-preloader .jip-site-title.jip-in {
	opacity: 1;
	transform: translateY(0) scale(1);
}

#jip-preloader .jip-skip-tip {
	position: absolute;
	bottom: 32px;
	left: 50%;
	transform: translateX(-50%);
	font-size: 12px;
	letter-spacing: 0.2em;
	color: rgba(255,255,255,0.5);
	opacity: 0;
	transition: opacity .35s ease .3s;
}

#jip-preloader.jip-ready .jip-skip-tip { opacity: 1; }

/* 隐藏过渡：只做透明度与轻微位移，避免整屏缩放纹理造成卡顿。 */
#jip-preloader.jip-hide {
	opacity: 0;
	transform: translateY(-6px);
	pointer-events: none;
	transition: opacity .36s ease, transform .36s ease;
}

/* ============== 效果一：立体 Logo（核心，222.mp4 复刻精致版） ============== */
#jip-preloader.jip-effect-logo3d .jip-frame {
	position: relative;
	width: clamp(180px, 32vmin, 320px);
	height: clamp(180px, 32vmin, 320px);
	perspective: 1000px;
	transform-style: preserve-3d;
	/* 多层霓虹光晕：蓝 → 紫 → 玫红 → 酒红 */
	filter:
		drop-shadow(0 0 6px  rgba( 80, 160, 255, 0.55))
		drop-shadow(0 0 18px rgba(150,  80, 255, 0.45))
		drop-shadow(0 0 36px rgba(255,  80, 160, 0.35))
		drop-shadow(0 0 60px rgba(160,  24,  56, 0.25))
		drop-shadow(0 18px 50px rgba(0, 0, 0, 0.55));
	animation: jip-frame-in 1s cubic-bezier(.2,.8,.2,1) both;
}

@keyframes jip-frame-in {
	0%   { opacity: 0; transform: scale(0.88) rotateX(-14deg); }
	100% { opacity: 1; transform: scale(1)    rotateX(0deg); }
}

/* 边框主体：conic-gradient 实现蓝→紫→玫红→酒红 循环渐变 */
#jip-preloader.jip-effect-logo3d .jip-frame-border {
	position: absolute;
	inset: 0;
	border-radius: 14px;
	background: conic-gradient(from 0deg,
		#2a7dff 0%,
		#7a3bff 22%,
		#c83bff 38%,
		#ff3b9a 55%,
		#d62562 72%,
		#a01838 88%,
		#2a7dff 100%);
	-webkit-mask:
		linear-gradient(#000 0 0) content-box,
		linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
			mask-composite: exclude;
	padding: 3px;
	animation: jip-spin 8s linear infinite;
	will-change: transform, filter;
	filter: blur(0.3px) brightness(1.25) saturate(1.25);
}

/* 边框外圈柔光辉光层：制造朦胧霓虹辉光 */
#jip-preloader.jip-effect-logo3d .jip-frame-border::after {
	content: "";
	position: absolute;
	inset: -8px;
	border-radius: 18px;
	background: conic-gradient(from 0deg,
		rgba( 42, 125, 255, 0.45) 0%,
		rgba(122,  59, 255, 0.55) 25%,
		rgba(255,  59, 154, 0.55) 50%,
		rgba(160,  24,  56, 0.45) 75%,
		rgba( 42, 125, 255, 0.45) 100%);
	filter: blur(14px) saturate(1.4);
	opacity: 0.75;
	pointer-events: none;
	animation: jip-spin 8s linear infinite;
	z-index: -1;
}

/* 边框上表面高光：模拟边框真实厚度的反光 */
#jip-preloader.jip-effect-logo3d .jip-frame-border::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: 14px;
	padding: 3px;
	background: linear-gradient(135deg,
		rgba(255,255,255,0.55) 0%,
		rgba(255,255,255,0.05) 18%,
		rgba(255,255,255,0)    50%,
		rgba(255,255,255,0.08) 82%,
		rgba(255,255,255,0.35) 100%);
	-webkit-mask:
		linear-gradient(#000 0 0) content-box,
		linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
			mask-composite: exclude;
	mix-blend-mode: screen;
	pointer-events: none;
	animation: jip-spin 8s linear infinite;
}

@keyframes jip-spin {
	to { transform: rotate(360deg); }
}

/* 内部容器（Logo 所在区域） */
#jip-preloader.jip-effect-logo3d .jip-frame-inner {
	position: absolute;
	inset: 6px;
	border-radius: 9px;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
	background: radial-gradient(ellipse at center,
		rgba(255,255,255,0.04) 0%,
		rgba(0,0,0,0) 70%);
}

/* Logo 蒙版：从上到下显现 */
#jip-preloader.jip-effect-logo3d .jip-logo-mask {
	width: var(--jip-logo-size, 80%);
	height: var(--jip-logo-size, 80%);
	display: flex;
	align-items: center;
	justify-content: center;
	-webkit-mask: linear-gradient(to bottom, #000 0%, #000 0%, transparent 0%);
			mask: linear-gradient(to bottom, #000 0%, #000 0%, transparent 0%);
	-webkit-mask-size: 100% 100%;
			mask-size: 100% 100%;
	transform: translateY(5px);
	animation: jip-logo-mask-reveal 1s cubic-bezier(.2,.7,.2,1) 0.5s forwards,
			   jip-logo-rise 1s cubic-bezier(.2,.7,.2,1) 0.5s forwards;
}

@keyframes jip-logo-mask-reveal {
	0%   { -webkit-mask-image: linear-gradient(to bottom, #000 0%,    #000 0%,    transparent 0%);
			       mask-image: linear-gradient(to bottom, #000 0%,    #000 0%,    transparent 0%); }
	100% { -webkit-mask-image: linear-gradient(to bottom, #000 0%,    #000 100%,  transparent 100%);
			       mask-image: linear-gradient(to bottom, #000 0%,    #000 100%,  transparent 100%); }
}

@keyframes jip-logo-rise {
	from { transform: translateY(5px); }
	to   { transform: translateY(0); }
}

/* Logo：多层 drop-shadow 营造前后立体光影层次（浮雕质感） */
#jip-preloader.jip-effect-logo3d .jip-logo-img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	display: block;
	filter:
		drop-shadow(0 1px 0   rgba(255,255,255,0.18))
		drop-shadow(0 -1px 0  rgba(0,0,0,0.25))
		drop-shadow(0 3px 6px rgba(0, 0, 0, 0.45))
		drop-shadow(0 8px 18px rgba( 30,  60, 120, 0.35))
		drop-shadow(0 0 14px rgba(160,  80, 255, 0.20));
}

/* 荧光扫描线：增强柔和发光拖尾 + 虚化光晕 */
#jip-preloader.jip-effect-logo3d .jip-scanline {
	position: absolute;
	left: -14%;
	right: -14%;
	top: -10%;
	height: 22px;
	background: linear-gradient(to bottom,
		rgba(255,255,255,0)    0%,
		rgba(200,230,255,0.45) 25%,
		rgba(255,255,255,1)    50%,
		rgba(200,230,255,0.45) 75%,
		rgba(255,255,255,0)    100%);
	filter: blur(3.5px) saturate(1.2);
	box-shadow:
		0 0 18px  rgba(255,255,255,0.9),
		0 0 36px  rgba(180,220,255,0.7),
		0 0 60px  rgba(120,180,255,0.5),
		0 0 100px rgba( 90,150,255,0.25);
	opacity: 0;
	pointer-events: none;
	animation: jip-scan 2.4s cubic-bezier(.4,.05,.4,1) 2s infinite;
}

@keyframes jip-scan {
	0%   { transform: translateY(-30%); opacity: 0; }
	8%   { opacity: 1; }
	92%  { opacity: 1; }
	100% { transform: translateY(160%);  opacity: 0; }
}

/* ============== 效果二：粒子汇聚 ============== */
#jip-preloader.jip-effect-particles .jip-particles-canvas {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	display: block;
}

#jip-preloader.jip-effect-particles .jip-particles-target {
	width: clamp(180px, 30vmin, 280px);
	height: clamp(180px, 30vmin, 280px);
	object-fit: contain;
	opacity: 0;
	transition: opacity .8s ease;
}

#jip-preloader.jip-effect-particles.jip-particles-ready .jip-particles-target {
	opacity: 0; /* canvas 接管渲染，img 仅用于采样 */
}

/* ============== 效果三：渐变穿梭 ============== */
#jip-preloader.jip-effect-gradient .jip-gradient-layer {
	position: absolute;
	inset: -25%;
	border-radius: 50%;
	mix-blend-mode: screen;
	filter: blur(60px);
	opacity: 0.85;
	will-change: transform;
}

#jip-preloader.jip-effect-gradient .jip-g1 {
	background: radial-gradient(circle, #2a7dff 0%, transparent 60%);
	animation: jip-g-move-1 6s ease-in-out infinite alternate;
}
#jip-preloader.jip-effect-gradient .jip-g2 {
	background: radial-gradient(circle, #ff3b6b 0%, transparent 60%);
	animation: jip-g-move-2 7s ease-in-out infinite alternate;
}
#jip-preloader.jip-effect-gradient .jip-g3 {
	background: radial-gradient(circle, #7a3bff 0%, transparent 60%);
	animation: jip-g-move-3 5s ease-in-out infinite alternate;
}

@keyframes jip-g-move-1 {
	from { transform: translate(-15%, -10%) scale(1); }
	to   { transform: translate( 20%,  15%) scale(1.2); }
}
@keyframes jip-g-move-2 {
	from { transform: translate( 20%, -15%) scale(1.1); }
	to   { transform: translate(-15%,  20%) scale(0.9); }
}
@keyframes jip-g-move-3 {
	from { transform: translate(  0%,  10%) scale(0.95); }
	to   { transform: translate( 10%, -20%) scale(1.15); }
}

#jip-preloader.jip-effect-gradient .jip-gradient-title {
	background: linear-gradient(90deg, #fff, #b8e6ff, #ffb8ee, #fff);
	background-size: 300% 100%;
	-webkit-background-clip: text;
			background-clip: text;
	color: transparent;
	animation: jip-grad-text 4s linear infinite;
	font-weight: 700;
}

@keyframes jip-grad-text {
	from { background-position: 0% 50%; }
	to   { background-position: 300% 50%; }
}

/* ============== 效果四：线条勾勒 ============== */
#jip-preloader.jip-effect-lines .jip-lines-svg {
	width: clamp(160px, 28vmin, 260px);
	height: clamp(160px, 28vmin, 260px);
	color: #fff;
	filter: drop-shadow(0 0 8px rgba(120,180,255,0.6));
}

#jip-preloader.jip-effect-lines .jip-line-path {
	stroke-dasharray: 1000;
	stroke-dashoffset: 1000;
	animation: jip-draw 2.4s cubic-bezier(.4,.05,.2,1) forwards infinite;
}

#jip-preloader.jip-effect-lines .jip-line-path:nth-child(2) { animation-delay: 0.3s; }
#jip-preloader.jip-effect-lines .jip-line-path:nth-child(3) { animation-delay: 0.6s; }

@keyframes jip-draw {
	0%   { stroke-dashoffset: 1000; }
	60%  { stroke-dashoffset: 0; }
	80%  { stroke-dashoffset: 0; opacity: 1; }
	100% { stroke-dashoffset: 0; opacity: 0.2; }
}

/* ============== 效果五：玻璃质感边框 ============== */
#jip-preloader.jip-effect-glass .jip-glass-box {
	position: relative;
	width: clamp(160px, 28vmin, 260px);
	height: clamp(160px, 28vmin, 260px);
	border-radius: 18px;
	background: linear-gradient(135deg,
		rgba(255,255,255,0.12),
		rgba(255,255,255,0.04));
	border: 1px solid rgba(255,255,255,0.18);
	box-shadow:
		0 10px 40px rgba(0,0,0,0.35),
		inset 0 1px 0 rgba(255,255,255,0.25);
	backdrop-filter: blur(20px) saturate(160%);
	-webkit-backdrop-filter: blur(20px) saturate(160%);
	animation: jip-spin 6s linear infinite;
}

#jip-preloader.jip-effect-glass .jip-glass-inner {
	position: absolute;
	inset: 18%;
	border-radius: 12px;
	background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.05));
	border: 1px solid rgba(255,255,255,0.25);
	animation: jip-spin 6s linear infinite reverse;
}

/* ============== 响应式 / 降级 ============== */
@media (max-width: 480px) {
	#jip-preloader .jip-stage { gap: 22px; }
	#jip-preloader .jip-site-title { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
	#jip-preloader,
	#jip-preloader * {
		animation-duration: 0.001s !important;
		transition-duration: 0.001s !important;
	}
}

/* 不支持 backdrop-filter 时的兜底 */
@supports not (backdrop-filter: blur(10px)) {
	#jip-preloader.jip-effect-glass .jip-glass-box {
		background: linear-gradient(135deg, rgba(80,80,100,0.6), rgba(30,30,50,0.6));
	}
}

/* 1.1.0 — performance-first effects and stage progress. */
.jip-simple-logo { width: min(32vw, 150px); height: min(32vw, 150px); object-fit: contain; filter: drop-shadow(0 14px 35px rgba(0,0,0,.35)); animation: jip-simple-pop .75s cubic-bezier(.2,.8,.2,1) both; }
@keyframes jip-simple-pop { from { transform: scale(.72) translateY(12px); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.jip-orbit { position: relative; width: min(56vw, 270px); aspect-ratio: 1; display: grid; place-items: center; }
.jip-orbit > i { position: absolute; inset: 4%; border: 1px solid rgba(130,190,255,.42); border-radius: 50%; animation: jip-orbit-spin 3.4s linear infinite; }
.jip-orbit > i:nth-child(2) { inset: 15%; border-color: rgba(190,120,255,.52); animation-duration: 2.4s; animation-direction: reverse; transform: rotateX(64deg); }
.jip-orbit > i:nth-child(3) { inset: 27%; border-style: dashed; border-color: rgba(255,255,255,.7); animation-duration: 1.8s; }
.jip-orbit > i::before { content: ''; position: absolute; top: -4px; left: 50%; width: 8px; height: 8px; border-radius: 50%; background: #9fd5ff; box-shadow: 0 0 14px currentColor; }
.jip-orbit > span { width: 35%; height: 35%; display: grid; place-items: center; border-radius: 28%; background: radial-gradient(circle at 35% 25%, rgba(255,255,255,.18), rgba(255,255,255,.06) 58%, rgba(80,120,220,.08)); box-shadow: 0 0 34px rgba(90,160,255,.2); transform: translateZ(0); }
.jip-orbit img { max-width: 76%; max-height: 76%; object-fit: contain; }
@keyframes jip-orbit-spin { to { transform: rotate(360deg); } }

.jip-shutter { position: absolute; left: 0; right: 0; height: 51%; z-index: 1; background: linear-gradient(135deg, rgba(20,28,48,.96), rgba(58,44,95,.96)); transition: transform .56s cubic-bezier(.76,0,.24,1); }
.jip-shutter-top { top: 0; transform-origin: top; }
.jip-shutter-bottom { bottom: 0; transform-origin: bottom; }
#jip-preloader.jip-ready .jip-shutter-top { transform: translateY(-42%); }
#jip-preloader.jip-ready .jip-shutter-bottom { transform: translateY(42%); }
.jip-effect-shutters .jip-stage { z-index: 2; }

.jip-ink-cloud { position: absolute; inset: 0; overflow: hidden; opacity: .62; contain: paint; }
.jip-ink-cloud i { position: absolute; width: 42vw; height: 42vw; min-width: 260px; min-height: 260px; border-radius: 47% 53% 39% 61%; background: radial-gradient(circle at 35% 35%, rgba(105,135,195,.62) 0 20%, rgba(63,83,130,.34) 38%, rgba(15,20,38,.08) 64%, transparent 72%); animation: jip-ink 4.2s ease-in-out infinite alternate; will-change: transform, opacity; }
.jip-ink-cloud i:nth-child(1) { left: 6%; top: 12%; }
.jip-ink-cloud i:nth-child(2) { right: 0; bottom: 4%; animation-delay: -1.7s; transform: scale(.82); }
.jip-ink-cloud i:nth-child(3) { left: 35%; bottom: -20%; animation-delay: -3s; transform: scale(.68); }
@keyframes jip-ink { from { transform: scale(.72) rotate(-8deg); opacity: .35; } to { transform: scale(1.08) rotate(10deg); opacity: .8; } }

.jip-progress { position: absolute; left: 50%; bottom: 9%; width: min(72vw, 360px); height: 4px; transform: translateX(-50%); border-radius: 999px; background: rgba(255,255,255,.14); z-index: 20; }
.jip-progress > span { display: block; width: 10%; height: 100%; border-radius: inherit; background: linear-gradient(90deg,#73c7ff,#a779ff,#ff78bc); box-shadow: 0 0 14px rgba(115,199,255,.5); transition: width .18s ease; }
.jip-progress > em { display: block; margin-top: 10px; color: rgba(255,255,255,.65); font-size: 12px; font-style: normal; text-align: center; letter-spacing: .08em; }

@media (prefers-reduced-motion: reduce) {
  #jip-preloader *, #jip-preloader *::before, #jip-preloader *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .15s !important; }
}