:root {
    --ink: #e8eef8;
    --muted: #9aa8be;
    --line: rgba(180, 210, 255, 0.14);
    --paper: #070b12;
    --card: rgba(14, 22, 36, 0.72);
    --accent: #3ee0b8;
    --accent-2: #6ea8ff;
    --glow: rgba(62, 224, 184, 0.35);
    --space: clamp(1rem, 4vw, 1.75rem);
    --max: 88rem;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
    margin: 0;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    color: var(--ink);
    background: var(--paper);
    font-family: "Segoe UI", system-ui, -apple-system, Roboto, "PingFang SC", "Noto Sans SC", "Noto Sans TC", sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}
.fx {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(900px 500px at 12% -10%, rgba(62, 224, 184, 0.18), transparent 55%),
        radial-gradient(800px 480px at 92% 8%, rgba(110, 168, 255, 0.16), transparent 50%),
        radial-gradient(700px 420px at 70% 90%, rgba(62, 224, 184, 0.08), transparent 55%),
        #070b12;
}
.fx::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.35;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
    mix-blend-mode: overlay;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 20; background: #111; color: #fff; padding: 0.5rem; }
.wrap {
    width: min(var(--max), calc(100% - 2 * var(--space)));
    margin-inline: auto;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: calc(0.7rem + env(safe-area-inset-top)) 0 0.7rem;
    backdrop-filter: blur(18px) saturate(1.2);
    background: rgba(7, 11, 18, 0.55);
    border-bottom: 1px solid var(--line);
    transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.site-header.is-on {
    background: rgba(7, 11, 18, 0.82);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.28);
}
.header-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1.25rem;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--ink);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}
.logo img { width: 2rem; height: 2rem; filter: drop-shadow(0 0 10px var(--glow)); }
.main-nav, .foot-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.15rem;
}
.main-nav a, .foot-nav a {
    color: var(--muted);
    text-decoration: none;
    min-height: 2.6rem;
    padding: 0.4rem 0.75rem;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    transition: color 0.2s, background 0.2s, transform 0.2s var(--ease);
}
.main-nav a:hover, .foot-nav a:hover { color: var(--ink); background: rgba(255,255,255,0.05); }
.main-nav a[aria-current="page"],
.lang-menu a[aria-current="page"] {
    color: var(--ink);
    background: rgba(62, 224, 184, 0.12);
}
.lang-menu { position: relative; }
.lang-menu summary {
    list-style: none;
    cursor: pointer;
    min-height: 2.6rem;
    padding: 0.35rem 0.75rem;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255,255,255,0.03);
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu div {
    position: absolute;
    inset-inline-end: 0;
    top: calc(100% + 0.4rem);
    z-index: 5;
    background: rgba(12, 18, 30, 0.95);
    border: 1px solid var(--line);
    border-radius: 1rem;
    min-width: 13rem;
    max-height: 70vh;
    overflow: auto;
    display: flex;
    flex-direction: column;
    padding: 0.4rem;
    box-shadow: 0 24px 60px rgba(0,0,0,0.4);
    backdrop-filter: blur(16px);
}
.lang-menu a {
    color: var(--muted);
    text-decoration: none;
    min-height: 2.4rem;
    padding: 0.35rem 0.7rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 0.7rem;
}
.lang-menu a:hover { background: rgba(255,255,255,0.05); color: var(--ink); }
.flag {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 2px;
    flex-shrink: 0;
}
h1, h2 {
    font-family: Georgia, "Iowan Old Style", "Songti SC", serif;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
}
h1 {
    font-size: clamp(2.1rem, 6vw, 4.1rem);
    margin: 0 0 1rem;
    background: linear-gradient(120deg, #fff 10%, #c9fff0 45%, #9ec4ff 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
h2 { font-size: clamp(1.3rem, 3vw, 1.85rem); margin: 2.4rem 0 1.1rem; }
.kicker {
    color: var(--accent);
    font-size: 0.82rem;
    margin: 0 0 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.lead { color: var(--muted); margin: 0 0 1.4rem; font-size: 1.05rem; max-width: none; }
.hero {
    position: relative;
    display: grid;
    gap: 1.5rem;
    padding: clamp(2rem, 6vw, 4.5rem) 0 2rem;
    min-height: min(72vh, 38rem);
    align-items: center;
}
.hero-orb {
    justify-self: center;
    width: min(22rem, 70vw);
    aspect-ratio: 1;
    border-radius: 50%;
    background:
        radial-gradient(circle at 35% 30%, rgba(255,255,255,0.35), transparent 28%),
        conic-gradient(from 120deg, rgba(62,224,184,0.55), rgba(110,168,255,0.2), rgba(62,224,184,0.05), rgba(62,224,184,0.55));
    filter: blur(2px);
    animation: spin 22s linear infinite;
    box-shadow: 0 0 80px var(--glow);
}
@keyframes spin { to { transform: rotate(1turn); } }
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1.4rem 0; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.9rem;
    padding: 0.55rem 1.3rem;
    background: linear-gradient(180deg, #5af0c8, var(--accent));
    color: #06241c !important;
    text-decoration: none;
    border: 0;
    border-radius: 999px;
    font-weight: 650;
    cursor: pointer;
    box-shadow: 0 8px 28px var(--glow);
    transition: transform 0.25s var(--ease), box-shadow 0.25s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 36px var(--glow); }
.btn.ghost {
    background: transparent;
    color: var(--ink) !important;
    border: 1px solid var(--line);
    box-shadow: none;
}
.cards, .contact-list, .pills, .steps {
    list-style: none;
    padding: 0;
    margin: 0 0 1.2rem;
}
.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
}
.cards li {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 1.2rem 1.25rem;
    border-radius: 1.1rem;
    backdrop-filter: blur(12px);
    transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
}
.cards li:hover {
    transform: translateY(-4px);
    border-color: rgba(62, 224, 184, 0.4);
    box-shadow: 0 18px 40px rgba(0,0,0,0.28);
}
.cards strong { display: block; margin-bottom: 0.4rem; font-size: 1.05rem; }
.cards span { color: var(--muted); }
.steps {
    display: grid;
    gap: 0.9rem;
}
.steps li {
    display: grid;
    gap: 0.25rem;
    padding: 1.1rem 1.2rem;
    border-radius: 1.1rem;
    border: 1px solid var(--line);
    background: var(--card);
}
.steps em {
    font-style: normal;
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
}
.steps span { color: var(--muted); }
.pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.pills li {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.92rem;
    background: rgba(255,255,255,0.03);
}
.band {
    margin: 2.5rem 0 1rem;
    padding: 1.6rem 1.4rem;
    border-radius: 1.4rem;
    border: 1px solid var(--line);
    background: linear-gradient(135deg, rgba(62,224,184,0.12), rgba(110,168,255,0.08));
}
.page-head { margin-bottom: 1.5rem; }
.more { margin: 0 0 2rem; }
.contact-list { display: grid; gap: 0.75rem; }
.contact-list li {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 1rem 1.15rem;
    border-radius: 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.35rem 1rem;
}
.contact-list span { color: var(--muted); }
.inquiry {
    display: grid;
    gap: 0.9rem;
    width: 100%;
    margin: 0 0 2.5rem;
}
.inquiry label { display: grid; gap: 0.4rem; }
.inquiry input, .inquiry textarea {
    font: inherit;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 0.85rem;
    background: rgba(255,255,255,0.03);
    color: var(--ink);
    width: 100%;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.inquiry input:focus, .inquiry textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--glow);
}
.inquiry button { justify-self: start; }
.inquiry .hint { color: var(--muted); font-size: 0.85rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.flash {
    padding: 0.85rem 1rem;
    border-radius: 0.9rem;
    border: 1px solid var(--line);
}
.flash.ok { border-color: var(--accent); background: rgba(62,224,184,0.1); }
.flash.bad { border-color: #c45; background: rgba(180,50,50,0.15); }
.prose { width: 100%; }
.prose h2 { margin-top: 2rem; }
.prose p { color: var(--muted); max-width: none; }
a { color: var(--accent); }
main { padding: 0.5rem 0 3rem; flex: 1; }
.site-footer {
    border-top: 1px solid var(--line);
    padding: 1.2rem 0 calc(1.4rem + env(safe-area-inset-bottom));
    color: var(--muted);
}
.footer-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.6rem 1rem;
    align-items: center;
}
[data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    animation: rise 0.8s var(--ease) forwards;
}
@keyframes rise { to { opacity: 1; transform: none; } }
[dir="rtl"] { font-family: system-ui, "Noto Naskh Arabic", "Segoe UI", sans-serif; }
@media (min-width: 720px) {
    .cards { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .hero { grid-template-columns: 1.15fr 0.85fr; }
}
@media (min-width: 1100px) {
    .cards { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    [data-reveal] { opacity: 1; transform: none; }
    .hero-orb { filter: none; }
}