:root{color-scheme:dark;--bg:#0b0d12;--panel:#141821;--text:#eef1f6;--muted:#9aa4b2;--accent:#6b97ff;--btn:#3d6df0;--accent2:#33d6a6;--line:#232a36;--err:#ff8a8a;--radius:16px}
/* Light theme: explicit choice (data-theme) or, without a choice, the system preference. */
:root[data-theme=light]{color-scheme:light;--bg:#f7f8fb;--panel:#fff;--text:#121620;--muted:#566070;--accent:#2a56d4;--btn:#2a56d4;--accent2:#0a7456;--line:#d9dfe9;--err:#b42323}
@media (prefers-color-scheme:light){:root:not([data-theme]){color-scheme:light;--bg:#f7f8fb;--panel:#fff;--text:#121620;--muted:#566070;--accent:#2a56d4;--btn:#2a56d4;--accent2:#0a7456;--line:#d9dfe9;--err:#b42323}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Thai","Noto Sans Arabic","Hiragino Sans","Yu Gothic","PingFang SC","Microsoft YaHei","Apple SD Gothic Neo","Malgun Gothic","Noto Sans CJK JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent)}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:14px}
.brand{font-weight:800;letter-spacing:.5px;text-decoration:none;color:var(--text)}.brand span{color:var(--accent)}
.nav nav{display:flex;gap:16px;flex-wrap:wrap;font-size:.95rem}.nav nav a{color:var(--muted);text-decoration:none}.nav nav a:hover{color:var(--text)}
.lang{font-size:.85rem;color:var(--muted)}.lang a{color:var(--muted)}
.hero{padding-block:72px 48px}.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.15;margin:0 0 16px}
.hero p{font-size:1.15rem;color:var(--muted);max-width:640px}
.cta{display:inline-block;margin-top:20px;padding:12px 22px;border-radius:999px;background:var(--btn);color:#fff;text-decoration:none;font-weight:700}
.cta.ghost{background:transparent;border:1px solid var(--line);color:var(--text);margin-inline-start:8px}
section{padding:48px 0;border-top:1px solid var(--line)}h2{font-size:1.7rem;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 28px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin:0 0 6px;font-size:1.1rem}.card p{margin:0;color:var(--muted)}
.price{font-size:1.8rem;font-weight:800;margin:10px 0 4px}.price small{font-size:.9rem;color:var(--muted);font-weight:500}
.card ul{padding-inline-start:18px;color:var(--muted);margin:10px 0 0}.card.featured{border-color:var(--accent)}
.card.pack{display:flex;flex-direction:column;cursor:pointer;transition:border-color .15s,box-shadow .15s}.card.pack ul{flex:1}
.card.pack:hover{border-color:var(--accent)}.has-selection .card.featured:not(.selected):not(:hover){border-color:var(--line)}
.card.pack.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.cta.pick{align-self:flex-start;margin-top:18px;padding:9px 18px;font-size:.95rem}
.tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--accent2);text-transform:uppercase;letter-spacing:1px}
.steps{counter-reset:s}.steps .card{position:relative}.steps .card::before{counter-increment:s;content:counter(s);position:absolute;top:18px;inset-inline-end:20px;font-weight:800;color:var(--line);font-size:2rem}
form{display:grid;gap:12px;max-width:620px}label{font-weight:600;font-size:.95rem}
input,select,textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--panel);color:var(--text);font:inherit}
textarea{min-height:140px}button{padding:12px 22px;border:0;border-radius:999px;background:var(--btn);color:#fff;font-weight:700;font:inherit;cursor:pointer}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.note{font-size:.85rem;color:var(--muted)}.status{font-weight:600}.status.ok{color:var(--accent2)}.status.err{color:var(--err)}
footer{padding:32px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.legal{padding-block:48px}.legal h1{font-size:2rem}
@media (max-width:640px){.nav nav a:not(:last-child){display:none}.nav{flex-wrap:wrap}.hero{padding-block:44px 32px}.cta.ghost{margin-inline-start:0;margin-top:10px}}
.lang{display:flex;align-items:center;gap:4px}
.theme-toggle{margin-inline-start:10px;padding:6px 8px;display:inline-flex;background:transparent;color:var(--text);border:1px solid var(--line);border-radius:999px;line-height:0}
.theme-toggle:hover{border-color:var(--accent)}.theme-toggle:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.theme-toggle .i-sun{display:none}
:root[data-theme=dark] .theme-toggle .i-moon{display:none}:root[data-theme=dark] .theme-toggle .i-sun{display:block}
.mockup-note{display:flex;flex-direction:column;gap:4px;margin-top:32px;max-width:640px;padding:16px 18px;border:1px solid var(--accent);border-radius:var(--radius);background:var(--panel)}
.mockup-note strong{color:var(--accent2)}.mockup-note span{color:var(--muted)}
.work-cta{margin:24px 0 0;color:var(--muted)}.work-cta a{font-weight:700}
.card h3 a{color:inherit}
.alt-price{color:var(--muted);font-size:.9rem;font-weight:600;margin-top:-2px}
.lang-menu{position:relative}.lang-menu summary{cursor:pointer;list-style:none;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--text)}
.lang-menu summary::-webkit-details-marker{display:none}.lang-menu summary::after{content:" \25BE";color:var(--muted)}
.lang-list{position:absolute;inset-inline-end:0;top:calc(100% + 6px);display:grid;min-width:150px;padding:6px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 24px rgb(0 0 0/.25)}
.lang-list a{padding:6px 10px;border-radius:8px;text-decoration:none;white-space:nowrap}.lang-list a:hover{background:var(--bg);color:var(--text)}
:lang(ja),:lang(zh-Hans){line-break:strict}:lang(ko){word-break:keep-all}
[dir=rtl] .hp{left:auto;right:-9999px}
.steps .card h3{padding-inline-end:2.4rem}