/**
 * 凯岸科技开屏前台样式。
 * 设计方向：白色、冰川浅蓝、轻扫描线、字符数据场与透视网格。
 */

body.kaian-splash-enabled {
    overflow: hidden;
}

.kaian-entry-splash {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    overflow: hidden;
    display: grid;
    place-items: center;
    color: var(--kaian-splash-text, #0c2344);
    background:
        radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--kaian-splash-secondary, #61c8ff) 18%, transparent), transparent 34%),
        linear-gradient(145deg, var(--kaian-splash-surface, #fff) 0%, var(--kaian-splash-bg, #f7fbff) 54%, #eef8ff 100%);
    font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    opacity: 1;
    visibility: visible;
    transition: opacity .62s cubic-bezier(.22,1,.36,1), visibility .62s;
    isolation: isolate;
}

.kaian-entry-splash::before,
.kaian-entry-splash::after {
    content: "";
    position: absolute;
    width: 44vw;
    height: 44vw;
    border-radius: 50%;
    filter: blur(72px);
    opacity: .2;
    pointer-events: none;
}

.kaian-entry-splash::before {
    left: -18vw;
    bottom: -26vw;
    background: var(--kaian-splash-primary, #1677ff);
}

.kaian-entry-splash::after {
    right: -20vw;
    top: -28vw;
    background: var(--kaian-splash-secondary, #61c8ff);
}

.kaian-entry-splash.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.kaian-splash-canvas,
.kaian-splash-atmosphere,
.kaian-splash-scan {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.kaian-splash-canvas {
    z-index: -1;
    opacity: .42;
    mix-blend-mode: multiply;
}

.kaian-entry-splash:not(.has-code-field) .kaian-splash-canvas {
    display: none;
}

.kaian-splash-atmosphere {
    z-index: -1;
    opacity: .68;
    background:
        linear-gradient(rgba(42, 137, 255, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(42, 137, 255, .08) 1px, transparent 1px);
    background-size: clamp(34px, 4vw, 72px) clamp(34px, 4vw, 72px);
    mask-image: radial-gradient(ellipse 72% 64% at 50% 50%, #000 0%, transparent 80%);
    transform: perspective(620px) rotateX(64deg) scale(1.75) translateY(25%);
    transform-origin: center 65%;
}

.kaian-entry-splash:not(.has-grid) .kaian-splash-atmosphere {
    display: none;
}

.kaian-splash-scan {
    z-index: 8;
    opacity: .18;
    background: repeating-linear-gradient(to bottom, rgba(5, 65, 142, .13) 0, rgba(5, 65, 142, .13) 1px, transparent 1px, transparent 5px);
    mix-blend-mode: multiply;
}

.kaian-entry-splash:not(.has-scanlines) .kaian-splash-scan {
    display: none;
}

.kaian-splash-scan::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    top: -14%;
    height: 18%;
    background: linear-gradient(180deg, transparent, rgba(39, 149, 255, .11), transparent);
    animation: kaianScan 3.6s linear infinite;
}

.kaian-splash-shell {
    position: relative;
    width: min(1160px, calc(100vw - 64px));
    min-height: min(780px, calc(100vh - 64px));
    display: grid;
    grid-template-rows: auto 1fr auto;
    padding: clamp(22px, 3vw, 42px);
    border: 1px solid rgba(32, 133, 255, .2);
    border-radius: clamp(24px, 2.4vw, 42px);
    background: linear-gradient(145deg, rgba(255,255,255,.72), rgba(239,248,255,.54));
    box-shadow: 0 30px 100px rgba(26, 97, 177, .13), inset 0 1px 0 rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    overflow: hidden;
}

.kaian-splash-shell::before {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(61, 154, 255, .09);
    border-radius: inherit;
    pointer-events: none;
}

.kaian-splash-topline,
.kaian-splash-footerline {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: center;
    color: var(--kaian-splash-muted, #6e86a4);
    font-size: 11px;
    line-height: 1.4;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.kaian-splash-system,
.kaian-splash-status {
    display: flex;
    align-items: center;
    gap: 9px;
}

.kaian-splash-system span,
.kaian-splash-status i {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #1fd8a2;
    box-shadow: 0 0 0 6px rgba(31,216,162,.1);
}

.kaian-splash-stage {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 44px 24px 36px;
}

.kaian-splash-brandmark {
    position: relative;
    width: clamp(76px, 7vw, 108px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    margin-bottom: clamp(24px, 3vh, 38px);
    border-radius: 30%;
    color: #fff;
    background: linear-gradient(145deg, var(--kaian-splash-primary, #1677ff), var(--kaian-splash-secondary, #61c8ff));
    box-shadow: 0 20px 54px color-mix(in srgb, var(--kaian-splash-primary, #1677ff) 32%, transparent), inset 0 1px 0 rgba(255,255,255,.45);
    font-size: clamp(22px, 2.6vw, 38px);
    font-weight: 800;
    letter-spacing: -.06em;
    animation: kaianFloat 3.2s ease-in-out infinite;
}

.kaian-splash-brandmark::after {
    content: "";
    position: absolute;
    inset: -10px;
    border: 1px solid rgba(49, 144, 255, .25);
    border-radius: 33%;
}

.kaian-splash-brandmark img {
    width: 70%;
    height: 70%;
    object-fit: contain;
}

.kaian-splash-eyebrow {
    margin: 0 0 14px;
    color: var(--kaian-splash-primary, #1677ff);
    font-size: clamp(10px, .8vw, 13px);
    font-weight: 800;
    letter-spacing: .24em;
    text-transform: uppercase;
}

.kaian-splash-title {
    position: relative;
    max-width: 900px;
    margin: 0;
    color: var(--kaian-splash-text, #0c2344);
    font-size: clamp(30px, 4vw, 64px);
    line-height: 1.14;
    letter-spacing: -.045em;
    font-weight: 800;
    text-wrap: balance;
    text-shadow: 0 8px 36px rgba(37, 112, 195, .07);
}

.kaian-splash-title::before,
.kaian-splash-title::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
}

.kaian-splash-title::before {
    color: var(--kaian-splash-primary, #1677ff);
    clip-path: inset(0 0 52% 0);
    animation: kaianGlitch 2.8s 1.2s infinite steps(1, end);
}

.kaian-splash-title::after {
    color: var(--kaian-splash-secondary, #61c8ff);
    clip-path: inset(58% 0 0 0);
    animation: kaianGlitch 3.4s 1.5s infinite steps(1, end) reverse;
}

.kaian-splash-subline {
    margin: 18px 0 0;
    color: var(--kaian-splash-muted, #6e86a4);
    font-size: clamp(10px, .86vw, 13px);
    letter-spacing: .28em;
}

.kaian-splash-progress-wrap {
    width: min(530px, 86vw);
    margin-top: clamp(34px, 6vh, 66px);
}

.kaian-splash-progress-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 11px;
    color: var(--kaian-splash-muted, #6e86a4);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .19em;
}

.kaian-splash-progress-number {
    color: var(--kaian-splash-primary, #1677ff);
    font-variant-numeric: tabular-nums;
}

.kaian-splash-progress {
    position: relative;
    height: 3px;
    overflow: hidden;
    border-radius: 99px;
    background: rgba(41, 127, 226, .12);
}

.kaian-splash-progress span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--kaian-splash-primary, #1677ff), var(--kaian-splash-secondary, #61c8ff));
    box-shadow: 0 0 16px var(--kaian-splash-secondary, #61c8ff);
    transition: width .16s linear;
}

.kaian-splash-modules {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 9px;
    margin-top: 25px;
}

.kaian-splash-modules span {
    padding: 7px 11px;
    border: 1px solid rgba(48, 140, 244, .13);
    border-radius: 8px;
    color: var(--kaian-splash-muted, #6e86a4);
    background: rgba(255,255,255,.54);
    font-size: 8px;
    letter-spacing: .13em;
}

.kaian-splash-orbit {
    position: absolute;
    left: 50%;
    top: 41%;
    border: 1px solid rgba(47, 143, 252, .15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.orbit-one { width: min(38vw, 480px); aspect-ratio: 1; animation: kaianOrbit 18s linear infinite; }
.orbit-two { width: min(50vw, 640px); aspect-ratio: 1; border-style: dashed; animation: kaianOrbit 28s linear infinite reverse; }
.orbit-three { width: min(64vw, 820px); aspect-ratio: 1; opacity: .55; animation: kaianPulse 4s ease-in-out infinite; }

.kaian-splash-skip {
    position: absolute;
    z-index: 12;
    right: clamp(18px, 3vw, 44px);
    top: clamp(18px, 3vw, 42px);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid rgba(45, 137, 242, .19);
    border-radius: 999px;
    color: var(--kaian-splash-muted, #6e86a4);
    background: rgba(255,255,255,.68);
    backdrop-filter: blur(10px);
    cursor: pointer;
    font: inherit;
    font-size: 12px;
    transition: color .2s, border-color .2s, transform .2s, background .2s;
}

.kaian-splash-skip:hover {
    color: var(--kaian-splash-primary, #1677ff);
    border-color: rgba(32,126,237,.36);
    background: #fff;
    transform: translateY(-1px);
}

@keyframes kaianScan { to { transform: translateY(750%); } }
@keyframes kaianFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes kaianOrbit { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes kaianPulse { 0%,100% { transform: translate(-50%, -50%) scale(.98); opacity:.36; } 50% { transform: translate(-50%, -50%) scale(1.02); opacity:.7; } }
@keyframes kaianGlitch { 0%,89%,100% { opacity:0; transform:none; } 90% { opacity:.24; transform:translateX(-3px); } 92% { opacity:.18; transform:translateX(4px); } 94% { opacity:0; } }

@media (max-width: 782px) {
    .kaian-splash-shell {
        width: calc(100vw - 28px);
        min-height: calc(100dvh - 28px);
        padding: 22px 18px;
        border-radius: 26px;
    }
    .kaian-splash-topline,
    .kaian-splash-footerline {
        font-size: 8px;
        letter-spacing: .11em;
    }
    .kaian-splash-stage { padding-inline: 4px; }
    .kaian-splash-title { font-size: clamp(30px, 10vw, 48px); letter-spacing: -.055em; }
    .kaian-splash-subline { letter-spacing: .16em; }
    .kaian-splash-footerline span:last-child { display:none; }
    .kaian-splash-skip { right: 18px; top: 18px; }
    .orbit-one { width: 72vw; }
    .orbit-two { width: 94vw; }
    .orbit-three { width: 120vw; }
}

@media (max-height: 680px) and (min-width: 783px) {
    .kaian-splash-shell { min-height: calc(100vh - 30px); }
    .kaian-splash-stage { padding-block: 20px; }
    .kaian-splash-brandmark { margin-bottom: 18px; width: 72px; }
    .kaian-splash-progress-wrap { margin-top: 26px; }
}

@media (prefers-reduced-motion: reduce) {
    .kaian-entry-splash *,
    .kaian-entry-splash *::before,
    .kaian-entry-splash *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}