/* 浅靛蓝 · 广告创意团队协作 */
:root {
  --bg: #eef1fb;
  --paper: #ffffff;
  --ink: #1f2740;
  --mute: #6b7390;
  --line: #d5dcf2;
  --indigo: #5c6fd6;
  --indigo-deep: #4558b8;
  --wash: #dfe5ff;
  --coral: #e58b6e;
  --mint: #6fbfa8;
  --shadow: 0 16px 36px rgba(70, 85, 150, 0.1);
  --radius: 18px;
  --font-display: "Segoe UI Variable Display", "Trebuchet MS", "Microsoft YaHei UI", sans-serif;
  --font-body: "Segoe UI", "Microsoft YaHei UI", sans-serif;
  --font-note: "Candara", "Segoe UI", "Microsoft YaHei UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(900px 480px at 8% 0%, rgba(92, 111, 214, 0.16), transparent 55%),
    radial-gradient(700px 420px at 95% 15%, rgba(229, 139, 110, 0.12), transparent 50%),
    linear-gradient(180deg, #f5f7fd, var(--bg) 40%, #e9edf9);
  line-height: 1.68;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.22; margin: 0 0 0.55rem; font-weight: 700; }
p { margin: 0 0 0.85rem; }
.wrap { width: min(1100px, calc(100% - 2rem)); margin-inline: auto; }

.studio > * { position: relative; z-index: 1; }

/* top studio bar */
.studio-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 0 0.4rem;
}
.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}
.blob {
  width: 42px; height: 42px;
  border-radius: 14px 14px 6px 14px;
  background: linear-gradient(145deg, #8b9aef, var(--indigo));
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800;
  box-shadow: var(--shadow);
}
.mark b { display: block; font-size: 1.08rem; }
.mark small {
  display: block;
  font-family: var(--font-note);
  font-size: 0.8rem;
  color: var(--mute);
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.95rem;
  font-size: 0.92rem;
}
.nav a { color: var(--mute); }
.nav a:hover, .nav a.on { color: var(--ink); }
.nav a.on { font-weight: 700; }
.brief-link {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--indigo);
  color: #fff;
  font-weight: 700;
  font-size: 0.86rem;
  white-space: nowrap;
  box-shadow: 0 10px 22px rgba(92, 111, 214, 0.28);
}

/* HERO — creative brief board */
.mood-hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.25rem;
  align-items: center;
  min-height: min(74vh, 700px);
  padding: 1.35rem 0 2.2rem;
}
.brief {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.3rem 1.45rem;
  position: relative;
  overflow: hidden;
}
.brief::after {
  content: "";
  position: absolute;
  right: -30px; top: -30px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: rgba(92, 111, 214, 0.1);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--wash);
  color: var(--indigo-deep);
  font-family: var(--font-note);
  font-size: 0.82rem;
  margin-bottom: 0.85rem;
}
.chip::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--coral);
}
.mood-hero h1 {
  font-size: clamp(1.95rem, 3.9vw, 3rem);
  max-width: 10ch;
  letter-spacing: -0.02em;
}
.lead { color: var(--mute); font-size: 1.03rem; max-width: 40ch; }
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.15rem 0 0.95rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  padding: 0.78rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
  word-break: keep-all;
  writing-mode: horizontal-tb;
  border: 1px solid transparent;
  transition: transform 0.18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-indigo {
  background: linear-gradient(120deg, #6d7fe0, var(--indigo-deep));
  color: #fff;
  box-shadow: 0 12px 26px rgba(69, 88, 184, 0.28);
}
.btn-soft {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}
.req {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}
.req p {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-radius: 14px;
  background: var(--wash);
  border: 1px dashed rgba(92, 111, 214, 0.35);
  font-size: 0.86rem;
  color: var(--mute);
}
.req b { display: block; color: var(--ink); font-size: 0.78rem; }

.frame {
  align-self: center;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow);
  transform: rotate(0.6deg);
}

/* sections */
.sec { padding: 2.8rem 0; }
.head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: end;
  gap: 0.8rem 1.4rem;
  margin-bottom: 1.3rem;
}
.head h2 { font-size: clamp(1.45rem, 2.5vw, 1.95rem); margin: 0; }
.head p { margin: 0; color: var(--mute); max-width: 44ch; }
.k {
  display: block;
  font-family: var(--font-note);
  font-size: 0.84rem;
  color: var(--indigo);
  margin-bottom: 0.2rem;
}

/* download as storyboard frames */
.story {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}
.frame-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1rem 1.15rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.4rem;
  position: relative;
}
.frame-card .num {
  font-family: var(--font-note);
  font-size: 0.8rem;
  color: var(--coral);
}
.frame-card .os { font-size: 1.15rem; margin: 0; }
.frame-card .meta { margin: 0; color: var(--mute); font-size: 0.88rem; }
.frame-card .meta b { color: var(--ink); }
.frame-card .btn { width: 100%; min-width: 0; margin-top: 0.4rem; }
.frame-card:nth-child(2) { transform: translateY(8px); }
.frame-card:nth-child(3) { transform: translateY(-4px); }
.frame-card:nth-child(4) { transform: translateY(6px); }

/* sticky note features */
.stickies {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
}
.note {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.05rem 0.9rem 1.1rem;
  box-shadow: var(--shadow);
  min-height: 170px;
}
.note:nth-child(1) { background: #eef1ff; }
.note:nth-child(2) { background: #fff4ef; }
.note:nth-child(3) { background: #eefaf5; }
.note:nth-child(4) { background: #f7f0ff; }
.note:nth-child(5) { background: #eef6ff; }
.note .ico {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.75);
  color: var(--indigo-deep);
  font-weight: 800;
  margin-bottom: 0.6rem;
  border: 1px solid rgba(255,255,255,0.9);
}
.note h3 { font-size: 1rem; }
.note p { margin: 0; color: var(--mute); font-size: 0.86rem; }

/* pitch solution */
.pitch {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 1.1rem;
}
.deck {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  padding: 1.4rem 1.3rem;
  box-shadow: var(--shadow);
}
.deck h2 { font-size: 1.55rem; }
.deck p { color: var(--mute); }
.points {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.points li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 0.5rem;
  align-items: start;
  font-size: 0.95rem;
}
.points li span {
  width: 20px; height: 20px;
  border-radius: 6px;
  background: var(--indigo);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  display: grid; place-items: center;
  margin-top: 0.15rem;
}
.gallery {
  display: grid;
  grid-template-rows: 1.15fr auto;
  gap: 0.7rem;
}
.shot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}
.shot-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

/* clients */
.clients {
  text-align: center;
  padding: 2rem 1.2rem;
  border-radius: calc(var(--radius) + 8px);
  background: linear-gradient(180deg, #fff, var(--wash));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.clients .big {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  margin-bottom: 0.3rem;
}
.clients .big em {
  font-style: normal;
  color: var(--indigo-deep);
}
.clients .sub { color: var(--mute); margin-bottom: 1.15rem; }
.brands {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}
.brands span {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

/* board twin */
.board {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0.85rem;
}
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-h {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.95rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f7f8ff, #fff);
}
.panel-h h2 { font-size: 1.18rem; margin: 0; }
.panel-h a { color: var(--indigo-deep); font-size: 0.88rem; font-weight: 700; }
.row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: 0; }
.row time {
  font-family: var(--font-note);
  font-size: 0.85rem;
  color: var(--indigo);
}
.row h3 { font-size: 0.98rem; margin-bottom: 0.2rem; }
.row p { margin: 0; color: var(--mute); font-size: 0.88rem; }
.faq details {
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--line);
}
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "✦ ";
  color: var(--coral);
}
.faq p { color: var(--mute); margin: 0.5rem 0 0.1rem; font-size: 0.92rem; }

/* launch CTA */
.launch {
  margin: 0.5rem 0 2.7rem;
  padding: 1.6rem 1.35rem;
  border-radius: calc(var(--radius) + 8px);
  background:
    radial-gradient(480px 180px at 90% 20%, rgba(229, 139, 110, 0.16), transparent 60%),
    radial-gradient(420px 160px at 8% 80%, rgba(92, 111, 214, 0.16), transparent 55%),
    #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1rem;
  align-items: center;
}
.launch h2 { font-size: clamp(1.35rem, 2.3vw, 1.8rem); }
.gains {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}
.gains li {
  color: var(--mute);
  padding-left: 1.1rem;
  position: relative;
  font-size: 0.95rem;
}
.gains li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--mint);
  font-weight: 800;
}

.foot {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--mute);
  font-size: 0.88rem;
}
.foot nav { display: flex; gap: 1rem; }

.page-hero {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 1.15rem;
  align-items: center;
  padding: 1.4rem 0 1rem;
}
.page-hero h1 { font-size: clamp(1.7rem, 3.3vw, 2.45rem); max-width: 12ch; }

@media (max-width: 980px) {
  .mood-hero, .pitch, .board, .launch, .page-hero { grid-template-columns: 1fr; }
  .story { grid-template-columns: 1fr 1fr; }
  .stickies { grid-template-columns: 1fr 1fr; }
  .frame-card:nth-child(n) { transform: none; }
  .brief-link { display: none; }
  .frame { transform: none; }
}
@media (max-width: 640px) {
  .story, .stickies, .req, .shot-row { grid-template-columns: 1fr; }
  .actions .btn { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .btn:hover { transform: none; }
}

/* ===== Hero image hard rules ===== */
.mood-hero,
.page-hero { align-items: center; }
.frame {
  align-self: center;
  height: auto;
  padding: 0;
  margin: 0;
}
.frame img,
.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  margin: 0;
  padding: 0;
  min-height: 0;
  max-height: none;
  clip-path: none;
  transform: none;
}