/*
  Tesla-like minimal aesthetic for SJ資本管理株式会社
  Palette: near-white, deep black, accent red, subtle grays
*/

:root {
  --bg: #ffffff;
  --text: #171A20;
  --muted: #6b7280;
  --dark: #000000;
  --accent: #e51937; /* Tesla red */
  --border: #e5e7eb;
  --card: #f8f9fb;
  /* RGB tuples for alpha-composable colors */
  --border-rgb: 229 231 235;
  --card-rgb: 248 249 251;
}

/* Dark theme variables */
:root[data-theme="dark"] {
  --bg: #0b0f13;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --dark: #000000;
  --accent: #e51937;
  --border: #334155; /* slate-700 */
  --card: #111827;   /* gray-900 */
  /* RGB tuples for alpha-composable colors */
  --border-rgb: 51 65 85;
  --card-rgb: 17 24 39;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, Inter, "SF Pro Text", Segoe UI, Roboto, Helvetica, Arial, "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.04);
  backdrop-filter: saturate(120%) blur(8px);
  transition: background 240ms ease, transform 80ms ease-out;
  will-change: transform;
}
.header.is-solid { background: rgba(255,255,255,0.85); }
.header.is-hidden { transform: translateY(-100%); }
.header.is-hidden .header-inner { transform: translateY(-100%); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; transition: transform 80ms ease-out; will-change: transform; }
.header-inner.has-bottom-image { position: relative; }
.header-inner.has-bottom-image .header-bottom-image { position: absolute; left: 0; bottom: 0; width: 100%; height: 60px; object-fit: cover; pointer-events: none; z-index: 0; }
.header-inner.has-bottom-image > *:not(.header-bottom-image) { position: relative; z-index: 1; }
@media (max-width: 768px) {
  .header-inner.has-bottom-image .header-bottom-image { height: 40px; }
}
/* Hide page-title on small screens */
@media (max-width: 768px) {
  .page-title { display: none; }
}
/* Header spacing: push brand further left and right area further right */
#site-header .container { max-width: var(--cms-header-max-width, 1280px); padding-left: var(--cms-header-padding-x, 12px); padding-right: var(--cms-header-padding-x, 12px); }
.brand { color: var(--text); font-weight: 600; text-decoration: none; letter-spacing: 0.2px; }
.brand-flex { display: inline-flex; align-items: center; gap: var(--cms-brand-gap, 8px); }
.brand-logo { height: 28px; width: auto; display: block; }
.nav { display: none; gap: 14px; }
.nav-link { color: var(--text); text-decoration: none; font-size: 14px; opacity: 0.88; }
.nav-link:hover { opacity: 1; }
.menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 8px 10px;
  min-width: 40px;
  min-height: 40px; /* 提升触控友好度 */
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08); /* 提升可读性 */
  transition: transform 120ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.menu-btn:hover { border-color: #d1d5db; }
.menu-btn:active { transform: translateY(1px) scale(0.98); }
.menu-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(229,25,55,0.15), 0 6px 16px rgba(0,0,0,0.08); }
.menu-btn .icon-menu { width: 20px; height: 20px; opacity: 0.95; }

/* Scroll progress bar at top */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 1100; /* above header */
  pointer-events: none;
  opacity: 0.9;
  transition: width 80ms linear, opacity 160ms ease;
}
[data-theme="dark"] #scroll-progress { opacity: 1; }

/* Back to top button */
.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 24px;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 18px rgba(0,0,0,0.18);
  cursor: pointer;
  z-index: 1100;
  opacity: 0; /* hidden by default */
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease, box-shadow 160ms ease;
}
.back-to-top:is(:hover, :focus-visible) { box-shadow: 0 10px 22px rgba(0,0,0,0.22); }
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top .icon { width: 18px; height: 18px; }
/* 菜单打开时，让按钮与白色菜单区分开 */
.menu-btn[aria-expanded="true"] {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}
/* 关闭图标：默认隐藏，仅在菜单打开时显示 */
.menu-btn .icon-close {
  display: none;
  width: 20px;
  height: 20px;
  opacity: 0.95;
}
.menu-btn[aria-expanded="true"] .icon-close {
  display: block;
}
.menu-btn[aria-expanded="true"] .icon-menu {
  display: none;
}

@media (max-width: 640px) {
  .menu-btn { min-width: 42px; min-height: 42px; padding: 8px; }
}

/* Header right group: nav + language + menu */
.header-right { display: flex; align-items: center; gap: 10px; }

/* Theme toggle button */
.theme-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 8px 10px;
  min-width: 40px; min-height: 40px;
  border-radius: 999px; cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 120ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}
.theme-btn:hover { border-color: #d1d5db; }
.theme-btn:active { transform: translateY(1px) scale(0.98); }
.theme-btn .icon { width: 18px; height: 18px; }
.theme-btn .icon-sun { display: none; }
.theme-btn.is-dark .icon-moon { display: none; }
.theme-btn.is-dark .icon-sun { display: inline; }

/* Language switch (collapsed dropdown) */
.lang-switch { position: relative; margin-left: 12px; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  padding: 6px 10px; border-radius: 999px; cursor: pointer; font-size: 13px;
}
.lang-toggle:hover { border-color: #d1d5db; }
.lang-toggle .chevron {
  width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent;
  border-top: 6px solid var(--muted); transition: transform 160ms ease;
}
.lang-switch.open .lang-toggle .chevron { transform: rotate(180deg); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  display: none; min-width: 140px; padding: 6px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 10px 26px rgba(0,0,0,0.12); z-index: 1100;
}
.lang-switch.open .lang-menu { display: grid; gap: 4px; }
.lang-menu .lang-btn { width: 100%; text-align: left; padding: 8px 10px; border: 0; background: transparent; border-radius: 8px; cursor: pointer; font-size: 13px; }
.lang-menu .lang-btn:hover { background: rgba(255,255,255,0.06); }
.lang-menu .lang-btn.active { font-weight: 600; color: var(--accent); }

/* 夜间模式：语言选择文字使用纯白色，提升可读性 */
[data-theme="dark"] .lang-toggle { color: #ffffff; }
[data-theme="dark"] .lang-toggle .lang-current { color: #ffffff; }
[data-theme="dark"] .lang-menu .lang-btn { color: #ffffff; }
[data-theme="dark"] .lang-menu .lang-btn.active { color: #ffffff; }

@media (min-width: 1024px) {
  .nav { display: flex; }
  .menu-btn { display: none; }
}

/* Mobile Nav */
.mobile-nav {
  position: fixed; inset: 0; background: var(--bg);
  z-index: 2000;
  opacity: 0; pointer-events: none; transition: opacity 200ms ease;
}
.mobile-nav.is-open { opacity: 1; pointer-events: auto; }
.mobile-nav-inner {
  position: absolute; right: 0; top: 0; bottom: 0; width: 100vw; max-width: 100vw;
  background-color: var(--bg);
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
  height: 100%;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.mobile-nav.is-open .mobile-nav-inner { transform: translateX(0); }
.mobile-link { color: var(--text); text-decoration: none; font-size: 16px; padding: 10px 12px; border-radius: 8px; }
.mobile-link:hover { background: rgba(255,255,255,0.06); }
.mobile-link.accent { color: var(--accent); font-weight: 600; }

/* 打开移动菜单时，锁定页面滚动，防止背景滚动 */
body.menu-open { overflow: hidden; }

/* Hero */
.hero {
  position: relative; min-height: 92vh; display: grid; place-items: center; text-align: center;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.6), rgba(0,0,0,0.2)),
    linear-gradient(180deg, #080808, #0f0f0f);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1000px 400px at 50% 0%, rgba(255,255,255,0.08), rgba(255,255,255,0)),
    radial-gradient(800px 300px at 50% 100%, rgba(255,255,255,0.04), rgba(255,255,255,0));
  opacity: 0.6;
  transform: translate3d(0, var(--parallax, 0px), 0);
  will-change: transform;
  pointer-events: none;
}
.hero-inner { padding: 120px 0 80px; }
.hero-title { font-size: clamp(28px, 5vw, 56px); font-weight: 600; letter-spacing: -0.5px; }
.hero-subtitle { max-width: 820px; margin: 16px auto 24px; font-size: clamp(16px, 2vw, 18px); color: rgba(255,255,255,0.9); }
.hero-actions { display: flex; gap: 12px; justify-content: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 42px; padding: 0 18px; border-radius: 999px; text-decoration: none; font-weight: 600; }
.btn-primary { background: #fff; color: var(--text); border: 1px solid transparent; }
.btn-primary:hover { background: #f3f4f6; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.7); }
.btn-ghost:hover { border-color: #fff; }
[data-theme="dark"] [data-i18n="contact.cta_email"].btn.btn-primary { color: #000; }
[data-theme="dark"] [data-i18n="hero.cta_contact"].btn.btn-primary { color: #000; }
[data-theme="dark"] #resume-upload-btn.btn.btn-primary { color: #000; }

/* Contact modal */
.contact-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1200; display: none; align-items: center; justify-content: center; }
.contact-modal-overlay.open { display: flex; }
.contact-modal-panel { width: min(520px, 90vw); background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 12px 30px rgba(0,0,0,0.25); }
.contact-modal-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.contact-modal-title { font-weight: 600; font-size: 16px; }
.contact-modal-body { padding: 16px; }
.contact-form { display: grid; gap: 12px; }
.contact-form label { font-size: 13px; font-weight: 600; }
.contact-form .field { display: grid; gap: 6px; }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea { border: 1px solid var(--border); background: var(--bg); color: var(--text); border-radius: 8px; padding: 10px 12px; font-size: 14px; }
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-modal-footer { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.contact-modal-footer .btn { height: 36px; padding: 0 14px; }
.contact-close { background: transparent; border: none; color: var(--text); cursor: pointer; font-size: 18px; line-height: 1; }
/* invalid & disabled states */
.contact-form .is-invalid { border-color: #e02424 !important; }
.contact-modal-footer .btn:disabled { opacity: 0.55; cursor: not-allowed; }

.scroll-indicator { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.85); font-size: 12px; letter-spacing: 0.12em; }
.scroll-indicator::after { content: ""; display: block; width: 1px; height: 24px; margin: 8px auto 0; background: rgba(255,255,255,0.8); animation: pulse 1.8s ease infinite; }
@keyframes pulse { 0%,100%{opacity:0.3; transform: translateY(0);} 50%{opacity:1; transform: translateY(6px);} }

/* Mobile: move hero content to bottom-left and adjust layout */
@media (max-width: 768px) {
  .hero { place-items: end start; text-align: left; }
  .hero-inner {
    padding: 24px 16px calc(56px + env(safe-area-inset-bottom, 0px));
    align-self: end;
    justify-self: start;
  }
  .hero-subtitle { margin: 12px 0 16px; max-width: none; }
  .hero-actions { justify-content: flex-start; align-items: center; flex-wrap: wrap; }

  /* 入场过渡：在移动端临时保持居中，对齐后用 JS 做 FLIP 动画 */
  .hero.js-mobile-enter { place-items: center; text-align: center; }
  .hero.js-mobile-enter .hero-inner {
    align-self: center;
    justify-self: center;
    padding: 24px 16px;
  }
  .hero.js-mobile-enter .hero-actions { justify-content: center; }
}

/* Sections */
.section { padding: 80px 0; }
.section-title { font-size: clamp(24px, 3.2vw, 36px); font-weight: 600; letter-spacing: -0.3px; margin: 0 0 24px; }
.section-why {
  background: var(--bg);
  /* WHY 卡片淡化：支持 0~3，alpha=1 - fade/3 */
  --why-factor: clamp(0, var(--cms-why-fade, 0), 3);
  --why-alpha: calc(1 - (var(--why-factor) / 3));
}
.section-services { 
  background: var(--bg);
  /* Services 卡片淡化：支持 0~3，alpha=1 - fade/3 */
  --services-factor: clamp(0, var(--cms-services-fade, 0), 3);
  --services-alpha: calc(1 - (var(--services-factor) / 3));
  /* 允许在服务区添加覆盖背景图 */
  position: relative;
  overflow: hidden;
}

/* Our Services 区域的覆盖背景图：在编辑模式可开启 */
.section-services::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--services-overlay-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: var(--services-overlay-opacity, 0.35);
  pointer-events: none;
  display: none; /* 默认不显示，仅在开启覆盖时显示 */
}
.section-services.has-overlay::before { display: block; }
.section-services .container { position: relative; z-index: 1; }
.section-partners { 
  background: var(--bg); text-align: center;
  /* 伙伴卡片淡化：支持 0~3，alpha=1 - fade/3 */
  --partners-factor: clamp(0, var(--cms-partners-fade, 0), 3);
  --partners-alpha: calc(1 - (var(--partners-factor) / 3));
}
.section-contact { background: var(--dark); color: #fff; text-align: center; }
.section-placeholder { background: var(--bg); }
.muted { color: var(--muted); }

/* Cards & Grids */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 768px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }

/* 首页 WHY 卡片：支持倾斜与细腻悬浮反馈 */
.section-why .card {
  transition: transform 120ms ease, box-shadow 180ms ease;
  transform: var(--tilt-transform, none);
  transform-style: preserve-3d;
  will-change: transform;
  /* 根据淡化系数同步淡化背景与边框 */
  background-color: rgb(var(--card-rgb) / var(--why-alpha));
  border-color: rgb(var(--border-rgb) / var(--why-alpha));
  /* 同步调整整体透明度 */
  opacity: var(--why-alpha);
  /* 基础阴影随淡化同步减弱到 0 */
  box-shadow: 0 8px 16px rgba(0,0,0, calc(0.06 * var(--why-alpha)));
  transition: transform 120ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}
.section-why .card:hover {
  transform: var(--tilt-transform, translate3d(0,0,0)) translate3d(0,-3px,0);
  box-shadow: 0 10px 20px rgba(0,0,0, calc(0.08 * var(--why-alpha)));
}

.service-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; gap: 10px; 
  /* 支持倾斜视差变换 */
  transform: var(--tilt-transform, none);
  transform-style: preserve-3d;
  will-change: transform;
}
.section-services .service-card {
  /* 根据淡化系数同步淡化背景与边框 */
  background-color: rgb(var(--card-rgb) / var(--services-alpha));
  border-color: rgb(var(--border-rgb) / var(--services-alpha));
  /* 同步调整整体透明度 */
  opacity: var(--services-alpha);
  /* 基础阴影随淡化同步减弱到 0 */
  box-shadow: 0 8px 16px rgba(0,0,0, calc(0.06 * var(--services-alpha)));
}
.service-card h3 { margin: 0; font-size: 18px; display: inline-flex; align-items: center; gap: 8px; }
.service-card p { margin: 0; color: var(--muted); }
.service-card .link { color: var(--accent); text-decoration: none; font-weight: 600; }
.service-card .link:hover { text-decoration: underline; }

.service-icon { width: 20px; height: 20px; color: var(--accent); flex-shrink: 0; transition: transform 180ms ease, filter 180ms ease; }

/* Services card media: keep images responsive and avoid stretching page height */
.section-services .service-card .media {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
  aspect-ratio: 16 / 9; /* fixed ratio for consistent card height */
}
.section-services .service-card .media img,
.section-services .service-card .media picture,
.section-services .service-card .media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Fallback: direct images inside service cards without .media wrapper */
.section-services .service-card > img,
.section-services .service-card img:not(.service-icon) {
  width: 100%;
  display: block;
  border-radius: 12px;
  aspect-ratio: 16 / 9;
  height: auto;
  object-fit: cover;
  overflow: hidden;
}

/* Hover effects for service cards */
.service-card { transition: transform 120ms ease, box-shadow 180ms ease, border-color 180ms ease, background-color 180ms ease; }
.section-services .service-card:hover { 
  transform: var(--tilt-transform, translate3d(0,0,0)) translate3d(0,-3px,0);
  box-shadow: 0 10px 20px rgba(0,0,0, calc(0.08 * var(--services-alpha)));
}
.service-card:hover .service-icon { transform: scale(1.08); filter: saturate(110%); }

.section-partners .tagline { font-size: clamp(20px, 3vw, 28px); font-weight: 600; }
.section-partners .tagline-sub { max-width: 900px; margin: 12px auto 0; color: var(--muted); }

/* Partners scroller */
.partners-scroller { position: relative; margin: 20px auto 0; }
.partners-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(180px, 220px);
  gap: 12px;
  overflow-x: auto;
  padding: 12px 48px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.partner-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--text);
  scroll-snap-align: start;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background-color 180ms ease;
}
.partner-logo { max-width: 90%; max-height: 72px; object-fit: contain; filter: saturate(95%); transition: transform 180ms ease, filter 180ms ease; }
.section-partners .partner-card:hover { 
  transform: translate3d(0,-2px,0); 
  box-shadow: 0 8px 16px rgba(0,0,0, calc(0.08 * var(--partners-alpha)));
  border-color: rgb(var(--border-rgb) / var(--partners-alpha));
}
.partner-card:hover .partner-logo { transform: scale(1.03); filter: saturate(115%); }
.partner-card.fallback { position: relative; }
.partner-card.fallback::after {
  content: attr(data-name);
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-weight: 600;
}
.partners-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.partners-arrow:hover { border-color: #d1d5db; }
.partners-arrow.left { left: 4px; }
.partners-arrow.right { right: 4px; }

@media (max-width: 768px) {
  .partners-arrow { display: none; }
  .partners-track { padding: 8px 12px; }
}

/* Footer */
.footer { background: #000; color: #fff; padding: 40px 0 24px; }
.footer-grid { display: grid; gap: 16px; grid-template-columns: repeat(1, 1fr); }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }
.footer h4 { margin: 0 0 12px; font-weight: 600; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { color: #cbd5e1; margin: 6px 0; }
.footer a { color: #cbd5e1; text-decoration: none; }
.footer a:hover { color: #ffffff; text-decoration: underline; }
.copyright { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 16px; padding-top: 16px; text-align: center; color: #cbd5e1; }

/* Reveal Animations */
.reveal { opacity: 0; transform: translateY(24px); transition: transform 600ms cubic-bezier(.2,.8,.2,1), opacity 600ms ease; will-change: transform, opacity; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Accessibility tweaks */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* 屏幕阅读器专用文本：视觉隐藏但仍可访问 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
/* 容器要相对定位以容纳绝对定位的视频 */
.section.hero {
  position: relative;
  overflow: hidden;
  background-color: #000; /* 若视频无法播放，仍然有黑色后备 */
  color: #fff;
}

/* Header background adaptation in dark mode */
[data-theme="dark"] .header { background: rgba(0,0,0,0.3); }
[data-theme="dark"] .header.is-solid { background: rgba(17,24,39,0.85); }

/* FAQ toggle background in dark mode */
[data-theme="dark"] body.page-faq .card .faq-toggle { background: var(--card); border-color: var(--border); }

/* 视频放在最底层，覆盖整个区块 */
.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: auto;
  height: 120%;              /* 让视频能填满纵向，避免黑边 */
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover;         /* 保证按比例裁剪填满 */
  z-index: 0;
  pointer-events: none;      /* 内容可被点击，视频不拦截交互 */
}

/* 英雄区图片：与视频同样覆盖容器，默认隐藏，由脚本切换显示 */
.hero-image {
  position: absolute;
  top: 50%;
  left: 50%;
  width: auto;
  height: 120%;
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  display: none; /* 默认显示视频，图片隐藏 */
}

/* 内容放在视频上方 */
.hero-inner {
  position: relative;
  z-index: 2;
  /* 根据需求加内边距、对齐等 */
}

/* 轻微遮罩，提升文字可读性（可调透明度） */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 1;
  pointer-events: none;
}
/* About page (Tesla-like minimal layout) */
.section-about .container { max-width: 980px; }
.section-about .grid { gap: 36px; }
.section-about h3 { margin: 0 0 12px; font-size: 26px; font-weight: 600; letter-spacing: -0.3px; }
.about-intro p { font-size: 19px; line-height: 1.85; color: var(--muted); }

/* Definition list: label on left, value on right; subtle separators */
.about-dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  column-gap: 16px;
  row-gap: 0;
  border-top: 1px solid var(--border);
}
.about-dl dt { color: var(--muted); padding: 14px 0; font-size: 14px; }
.about-dl dd { margin: 0; padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 16px; line-height: 1.8; }
@media (max-width: 640px) {
  .about-dl { grid-template-columns: 1fr; }
  .about-dl dt { padding-top: 16px; }
}

/* Lists with clean separators */
.about-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.about-list li { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 16px; line-height: 1.7; }
.about-list li:last-child { border-bottom: 0; }

/* Timeline style for company history */
.about-list--timeline { position: relative; padding-left: 16px; }
.about-list--timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.about-list--timeline li { position: relative; padding-left: 12px; border-bottom: 0; }
.about-list--timeline li::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* Service detail reveal area within Services */
.service-detail {
  display: none;
  margin-top: 24px;
  scroll-margin-top: 80px;
  padding: 0 0 40px;
}
.service-detail:target {
  display: block;
}
.service-detail .service-hero-bg {
  position: relative;
  z-index: 1;
  overflow: hidden;
  width: 100%;
  height: clamp(220px, 38vh, 420px);
  margin-bottom: 22px;
  border-radius: 12px;
}
.service-detail .service-hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.25));
  pointer-events: none;
}
.service-detail .service-hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.service-detail .card {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  max-width: 760px;
  margin: 0 auto;
}
.service-detail .card { position: relative; z-index: 2; }
.service-detail .card h3 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.22;
}
.service-detail .card h4 {
  margin: 28px 0 12px;
  font-weight: 600;
  font-size: clamp(18px, 2.1vw, 22px);
  letter-spacing: 0;
  line-height: 1.35;
}
.service-detail .card p {
  margin: 12px 0;
  color: var(--text);
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.8;
  letter-spacing: 0;
}
.service-detail .about-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 24px;
}
.service-detail .about-list li {
  border-bottom: 0;
  padding: 0;
  margin: 10px 0;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.8;
}

/* Home Services section top hero banner */
.section-services .services-hero {
  position: relative;
  width: 100%;
  height: clamp(220px, 36vh, 420px);
  margin: 0 0 24px;
  border-radius: 14px;
  overflow: hidden;
}
.section-services .services-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.2), rgba(0,0,0,0.2));
  pointer-events: none;
}
.section-services .services-hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Services detail page: make hero image fill entire section */
#services-page.section-services { position: relative; overflow: hidden; }
#services-page .services-hero {
  position: absolute;
  inset: 0;
  margin: 0;
  border-radius: 0;
  z-index: 0;
}
#services-page .services-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15), rgba(0,0,0,0.15));
  pointer-events: none;
}
#services-page .services-hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* Ensure content overlays the background image */
#services-page .container { position: relative; z-index: 1; }

/* Prevent global overlay background from affecting homepage services section */
#services.section-services.has-overlay::before { display: none !important; }
.service-detail .about-list li strong { font-weight: 600; }
.service-detail .hero-actions .link { font-weight: 500; }

/* Language-specific typographic tuning for Japanese */
html[lang="ja"] .service-detail .card h3 { letter-spacing: 0; }
html[lang="ja"] .service-detail .card p,
html[lang="ja"] .service-detail .about-list li { line-height: 1.9; }
.service-detail .hero-actions .link {
  font-weight: 500;
}

/* Japanese Hero: mobile font size adjustments */
@media (max-width: 640px) {
  html[lang="ja"] .hero-title { font-size: 24px; }
  html[lang="ja"] .hero-subtitle { font-size: 14px; line-height: 1.8; }
}


/* Close button with Heroicons X, Apple-like minimal pill */
.close-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.92);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
  backdrop-filter: saturate(120%) blur(6px);
  transition: background 160ms ease, box-shadow 160ms ease, transform 100ms ease, opacity 160ms ease;
}
.close-btn .icon { width: 18px; height: 18px; opacity: 0.9; flex-shrink: 0; }
.close-btn:hover { background: #fff; box-shadow: 0 6px 20px rgba(0,0,0,0.08); }
.close-btn:active { transform: translateY(1px); }
.close-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(229,25,55,0.15), 0 6px 20px rgba(0,0,0,0.1); }
@media (prefers-reduced-motion: reduce) {
  .close-btn { transition: none; }
}
/* Mobile tuning: tighter padding while keeping touch target */
@media (max-width: 640px) {
  .close-btn {
    padding: 6px 10px;
    gap: 0;
    min-width: 36px;
    min-height: 36px;
  }
  .close-btn .icon { width: 16px; height: 16px; }
}

/* FAQ 手风琴展开动画（答复段落由 JS 赋予 .faq-answer 类） */
body.page-faq .card .faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 260ms ease, opacity 220ms ease;
}
body.page-faq .card.expanded .faq-answer {
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  body.page-faq .card .faq-answer { transition: none; }
}
/* FAQ 右上角折叠切换按钮 */
body.page-faq .card { position: relative; }
body.page-faq .card .faq-toggle {
  position: absolute; top: 10px; right: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border: 1px solid var(--border);
  background: #fff; color: var(--text);
  border-radius: 999px; cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
body.page-faq .card .faq-toggle .icon { width: 16px; height: 16px; opacity: 0.8; transition: transform 160ms ease, opacity 160ms ease; }
body.page-faq .card .faq-toggle[aria-expanded="true"] .icon { transform: rotate(180deg); opacity: 0.95; }
/* Plant cards layout & interactions */
.plant-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  will-change: transform;
}

.plant-card h3 {
  margin: 0 0 4px 0;
}

.plant-card .about-list {
  margin: 0;
  padding: 0;
  max-height: 0;               /* 默认折叠：高度为 0 */
  overflow: hidden;            /* 防止内容溢出 */
  opacity: 0;                  /* 折叠时淡出 */
  transform: translateY(-6px); /* 轻微上移，提升视觉自然度 */
  transition: max-height 120ms cubic-bezier(0.2, 0, 0, 1),
              opacity 100ms ease-out,
              transform 100ms ease-out;
  will-change: max-height, opacity, transform;
}

@media (min-width: 768px) {
  .plant-card .about-list {
    display: block;
  }
}

/* 列表的折叠不再通过 .about-list.collapsed 控制，统一由卡片容器状态控制 */

.plant-card .details-toggle {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 6px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 9999px;
  border: none;
  background: rgba(0,0,0,0.4);
  color: #fff;
  cursor: pointer;
}

@media (hover: hover) {
  .plant-card .details-toggle:hover {
    opacity: 0.85;
  }
}

.plant-card .details-toggle:active {
  transform: translateY(1px) scale(0.98);
}

.plant-card .details-toggle:focus-visible {
  outline: 2px solid rgba(59, 130, 246, 0.6);
  outline-offset: 2px;
}

.plant-card .details-toggle .icon {
  width: 18px;
  height: 18px;
  transition: transform 0.12s ease-out;
}

.plant-card .details-toggle[aria-expanded="true"] .icon {
  transform: rotate(180deg);
}
/* Desktop: show toggle on hover/focus, hide by default to reduce clutter */
@media (min-width: 1024px) {
  .plant-card .details-toggle {
    opacity: 0;
    transition: opacity 0.12s ease-out;
    z-index: 2;
  }
  .plant-card:hover .details-toggle,
  .plant-card .details-toggle:focus-visible,
  .plant-card.expanded .details-toggle {
    opacity: 1;
  }
  .plant-card h3 {
    cursor: pointer;
  }
}
/* Plants page: Tesla-like gallery layout */
.plants-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .plants-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .plants-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.plant-card .media {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #0f0f0f;
  aspect-ratio: 16 / 9;
}

/* 覆盖层：让标题与参数列表置于图片之上，整个卡片都是图片 */
.plant-card .media .media-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 16px;
  gap: 8px;
}
.plant-card .media .media-overlay .media-caption {
  position: static;
  color: #fff;
}
.plant-card .media .media-overlay .caption-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.35);
  margin: 0;
}
/* 参数列表作为覆盖层面板显示 */
.plant-card .media .about-list {
  background: rgba(0,0,0,0.35);
  color: #fff;
  backdrop-filter: saturate(120%) blur(4px);
  border-radius: 10px;
  padding: 10px 12px;
}
.plant-card .media .about-list li strong { color: #fff; }

.plant-card .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1);
  transition: transform 0.24s ease-out;
}

.plant-card .media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0) 55%, rgba(0,0,0,0.6) 100%);
  pointer-events: none;
}

.plant-card:hover .media img {
  transform: scale(1.03);
}

.plant-card .media-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.plant-card .media-caption .caption-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.35);
}

.plant-card .media-caption .caption-meta {
  font-size: 0.95rem;
  opacity: 0.95;
}

@media (max-width: 640px) {
  .plant-card .media-caption {
    left: 12px;
    right: 12px;
    bottom: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .plant-card .media-caption .caption-title {
    font-size: 1rem;
  }
  .plant-card .media-caption .caption-meta {
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .plant-card .media img { transition: none; }
}
.plant-card.expanded .about-list {
  opacity: 1;
  transform: translateY(0);
  overflow: auto; /* 展开时允许滚动，避免内容过长被裁切 */
}

@media (prefers-reduced-motion: reduce) {
  .plant-card .about-list {
    transition: none;
  }
}

/* Desktop grid with JS-calculated row spans to avoid row stretching while keeping order */
@media (min-width: 1200px) {
  .plants-grid {
    display: grid;               /* keep grid to preserve item order */
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: 8px;         /* base row height for masonry-like spanning */
    align-items: start;          /* prevent stretch */
  }
  .plants-grid > .plant-card {
    margin: 0;                   /* rely on grid gap */
  }
}

/* Plants: image-only mode — remove card boxes and overlays */
.plants-grid .card.plant-card {
  background: transparent;
  border: 0;
  padding: 0;
}
/* ---- CMS Editor UI & Upload Styles ---- */
.cms-editor-bar {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(20, 20, 20, 0.85);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  /* Make editor toolbar resizable */
  resize: both;
  overflow: auto;
  max-width: 90vw;
  max-height: 50vh;
  box-sizing: border-box;
}
.cms-editor-status {
  font-size: 12px;
  opacity: 0.9;
}
.cms-auth-badge {
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 999px;
}
.cms-auth-badge.ok {
  background: rgba(0, 168, 112, 0.2);
  color: #00a870;
}
.cms-auth-badge.off {
  background: rgba(217, 48, 37, 0.25);
  color: #d93025;
}
.cms-editor-btn {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 6px 10px;
}
.cms-editor-btn.primary { background: #3178c6; color: #fff; }
.cms-editor-btn.toggle { background: #00a870; color: #fff; }
.cms-editor-btn.add { background: #444; color: #fff; }
.cms-editor-btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.cms-editor-link { color: #9cd2ff; font-size: 12px; text-decoration: underline; }

/* Image replace button */
.cms-editor-img-btn {
  position: absolute;
  transform: translate(6px, 6px);
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 4px 6px;
  cursor: pointer;
}
.cms-editor-img-btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* Upload progress overlay */
.cms-upload-overlay {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 6px;
  border-radius: 4px;
  font-size: 12px;
  z-index: 1000;
  pointer-events: none;
}
.cms-upload-overlay .cms-upload-label { margin-bottom: 4px; }
.cms-upload-overlay .cms-upload-barwrap {
  width: 140px;
  height: 6px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 3px;
  overflow: hidden;
}
.cms-upload-overlay .cms-upload-bar {
  height: 100%;
  width: 0%;
  background: #00a870;
  border-radius: 3px;
  transition: width 120ms ease;
}
.cms-upload-overlay.done .cms-upload-label { color: #00a870; }
.cms-upload-overlay.fail { background: rgba(217, 48, 37, 0.9); }

/* --- Cartoon style overrides for homepage cards --- */
.section-why .card,
.section-services .service-card,
.partners-track .partner-card {
  border-width: 2px;
  border-radius: 20px;
  /* 更灵敏的倾斜跟随：transform 120ms，无延迟 */
  transition: transform 120ms ease, opacity 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

/* Hover动画延迟：进入 hover 60ms，离开 0ms（更灵敏恢复） */
.section-why .card { transition-delay: 0ms; }
.section-services .service-card { transition-delay: 0ms; }

.section-why .card:hover {
  transform: var(--tilt-transform, translate3d(0,0,0)) translateY(-3px) scale(1.01);
  /* WHY 卡片在悬停时的阴影与边框也随淡化系数同步变化 */
  box-shadow: 0 10px 20px rgba(0,0,0, calc(0.08 * var(--why-alpha)));
  border-color: rgb(var(--border-rgb) / var(--why-alpha));
  /* 仅对非 transform 属性增加延迟，transform立即响应 */
  transition-property: transform, box-shadow, border-color, opacity;
  transition-duration: 120ms, 200ms, 200ms, 200ms;
  transition-delay: 0ms, 60ms, 60ms, 0ms;
}
.section-services .service-card:hover {
  transform: var(--tilt-transform, translate3d(0,0,0)) translateY(-3px) scale(1.01);
  box-shadow: 0 10px 20px rgba(0,0,0,0.08);
  /* 去掉悬停描边；响应即时 */
  transition-property: transform, box-shadow, border-color, opacity;
  transition-duration: 120ms, 200ms, 200ms, 200ms;
  transition-delay: 0ms, 60ms, 60ms, 0ms;
}
.partners-track .partner-card:hover {
  transform: var(--tilt-transform, translate3d(0,0,0)) translateY(-3px) scale(1.01);
  box-shadow: 0 10px 20px rgba(0,0,0, calc(0.08 * var(--partners-alpha)));
  border-color: var(--border);
}

/* Staggered reveal only before element becomes visible */
.section-why .grid .reveal:not(.is-visible),
.section-services .grid .reveal:not(.is-visible) { transition-delay: var(--stagger-delay, 0ms); }

.section-why .grid .reveal:nth-child(1),
.section-services .grid .reveal:nth-child(1) { --stagger-delay: 0ms; }
.section-why .grid .reveal:nth-child(2),
.section-services .grid .reveal:nth-child(2) { --stagger-delay: 80ms; }
.section-why .grid .reveal:nth-child(3),
.section-services .grid .reveal:nth-child(3) { --stagger-delay: 160ms; }
.section-why .grid .reveal:nth-child(4),
.section-services .grid .reveal:nth-child(4) { --stagger-delay: 240ms; }
.section-why .grid .reveal:nth-child(5),
.section-services .grid .reveal:nth-child(5) { --stagger-delay: 320ms; }
.section-why .grid .reveal:nth-child(6),
.section-services .grid .reveal:nth-child(6) { --stagger-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .section-why .grid .reveal,
  .section-services .grid .reveal { transition-delay: 0ms !important; }
}

/* Partners: 同步淡化卡片容器背景与边框 */
.section-partners .partner-card {
  background-color: rgb(var(--card-rgb) / var(--partners-alpha));
  border-color: rgb(var(--border-rgb) / var(--partners-alpha));
  /* 仅淡化容器的背景与边框，不影响文本与图片透明度 */
  /* 基础阴影随淡化同步减弱到 0 */
  box-shadow: 0 8px 16px rgba(0,0,0, calc(0.06 * var(--partners-alpha)));
}
.section-partners .partner-card:hover {
  background-color: rgb(var(--card-rgb) / var(--partners-alpha));
}

.section-services .service-card h3 {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.service-icon {
  width: 24px;
  height: 24px;
}
/* Services detail: move main content container down by 50px */
#services-page > .container {
  margin-top: 220px;
}
/* Fixed header: always above all elements */
.header-inner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  /* readability enhancements */
  background: rgba(255, 255, 255, 0.0050);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  backdrop-filter: saturate(180%) blur(8px);
}

/* Mobile: smaller height, base z-index */
@media (max-width: 768px) {
  .header-inner {
    min-height: 56px;
    z-index: 9999;
  }
}

/* Desktop: larger height, higher z-index */
@media (min-width: 769px) {
  .header-inner {
    min-height: 72px;
    z-index: 10000;
  }
}