:root{
  --color-primary:#00507E;
  --color-primary-light:#1C92CE;
  --color-primary-dark:#063A5C;
  --color-accent:#CD9218;
  --color-accent-light:#DDA61C;
  --color-accent-dark:#98660B;
  --color-bg:#FBFAF5;
  --color-surface:#F2EEDF;
  --color-surface-elevated:#FFFFFF;
  --color-text:#0A2A40;
  --color-text-secondary:#456277;
  --color-text-muted:#8FA3B1;
  --color-border:#E0D9C3;
  --color-border-light:#EDE7D5;
  --font-display:'Fraunces', 'Times New Roman', serif;
  --font-body:'Manrope', system-ui, sans-serif;
  --font-jp-display:'Noto Serif JP', serif;
  --font-jp-body:'Noto Sans JP', sans-serif;
  --font-cn-display:'Noto Serif SC', serif;
  --font-cn-body:'Noto Sans SC', sans-serif;
  --text-xs:clamp(0.7rem,0.8vw,0.75rem);
  --text-sm:clamp(0.8rem,0.9vw,0.875rem);
  --text-base:clamp(0.9rem,1vw,1rem);
  --text-lg:clamp(1rem,1.2vw,1.125rem);
  --text-xl:clamp(1.15rem,1.5vw,1.25rem);
  --text-2xl:clamp(1.4rem,2vw,1.5rem);
  --text-3xl:clamp(1.7rem,2.5vw,1.875rem);
  --text-4xl:clamp(2rem,3.5vw,2.5rem);
  --text-5xl:clamp(2.5rem,5vw,3.5rem);
  --text-hero:clamp(2.8rem,7vw,6rem);
  --space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;
  --space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;
  --space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--space-32:8rem;
  --section-gap:clamp(5rem,12vh,10rem);
  --container-max:1280px;
  --container-padding:clamp(1.25rem,5vw,3rem);
  --radius-sm:4px;--radius-md:8px;--radius-lg:16px;--radius-xl:24px;
  --shadow-sm:0 1px 3px rgba(0,80,126,.06);
  --shadow-md:0 8px 24px rgba(0,80,126,.08);
  --shadow-lg:0 24px 60px rgba(0,80,126,.12);
  --ease-out:cubic-bezier(0.16,1,0.3,1);
  --ease-in-out:cubic-bezier(0.65,0,0.35,1);
  --transition-fast:.2s var(--ease-out);
  --transition-base:.4s var(--ease-out);
  --transition-slow:.8s var(--ease-out);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:var(--font-body);font-size:var(--text-base);line-height:1.7;color:var(--color-text);background:var(--color-bg);overflow-x:hidden;font-weight:400}
body[data-lang="ja"]{font-family:var(--font-jp-body)}
body[data-lang="zh"]{font-family:var(--font-cn-body)}
body[data-lang="ja"] h1,body[data-lang="ja"] h2,body[data-lang="ja"] h3,body[data-lang="ja"] h4,body[data-lang="ja"] .display{font-family:var(--font-jp-display);letter-spacing:.02em}
body[data-lang="zh"] h1,body[data-lang="zh"] h2,body[data-lang="zh"] h3,body[data-lang="zh"] h4,body[data-lang="zh"] .display{font-family:var(--font-cn-display);letter-spacing:.02em}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}
button{font:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--color-accent);color:#fff}

h1,h2,h3,h4{font-family:var(--font-display);line-height:1.1;font-weight:500;letter-spacing:-0.02em;font-variation-settings:"SOFT" 50,"WONK" 0}
h1{font-size:var(--text-hero);font-weight:500;letter-spacing:-0.04em}
h2{font-size:var(--text-5xl);font-weight:500}
h3{font-size:var(--text-3xl);font-weight:500}
h4{font-size:var(--text-xl);font-weight:500}
.eyebrow{font-family:var(--font-body);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.25em;color:var(--color-accent);font-weight:500;display:inline-flex;align-items:center;gap:var(--space-3)}
.eyebrow::before{content:'';width:32px;height:1px;background:var(--color-accent)}
.italic{font-style:italic}

.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding)}

/* === NAV === */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:var(--space-5) 0;transition:all var(--transition-base);background:rgba(251,250,245,0);backdrop-filter:blur(0)}
.nav.scrolled{background:rgba(251,250,245,.92);backdrop-filter:blur(20px);box-shadow:0 1px 0 var(--color-border-light);padding:var(--space-3) 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-8)}
.logo{display:flex;align-items:center;gap:var(--space-3);transition:opacity var(--transition-fast)}
.logo:hover{opacity:.8}
.logo img{height:38px;width:auto;display:block}
.nav.scrolled .logo img{height:34px}
.footer-brand .logo img{filter:brightness(0) invert(1);opacity:.95;height:42px}
.footer-brand .logo img:hover{opacity:1}
.nav-links{display:flex;gap:var(--space-8);align-items:center;list-style:none}
.nav-links a{font-size:.875rem;font-weight:400;color:var(--color-text);position:relative;padding:var(--space-2) 0;letter-spacing:.02em}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--color-accent);transition:width var(--transition-base)}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:var(--space-5)}
.lang-switch{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.75rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;background:rgba(255,255,255,.5);transition:all var(--transition-fast);position:relative}
.lang-switch:hover{border-color:var(--color-accent);color:var(--color-accent)}
.lang-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-md);min-width:140px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all var(--transition-base);z-index:200;overflow:hidden}
.lang-switch.open .lang-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.lang-option{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--space-3) var(--space-4);font-size:.8rem;letter-spacing:.05em;color:var(--color-text);text-transform:none;background:none;border:none;text-align:left;cursor:pointer;transition:background var(--transition-fast);font-family:inherit}
.lang-option:hover{background:var(--color-surface)}
.lang-option.active{color:var(--color-accent);background:var(--color-surface)}
.lang-option .flag{font-size:1rem}
.nav-cta{padding:var(--space-3) var(--space-5);background:var(--color-primary);color:#fff;border-radius:var(--radius-sm);font-size:.8rem;letter-spacing:.05em;font-weight:500;transition:all var(--transition-fast)}
.nav-cta:hover{background:var(--color-accent);transform:translateY(-1px)}
.menu-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;position:relative;z-index:2010}
.menu-toggle span{width:24px;height:1.5px;background:var(--color-primary);transition:background var(--transition-fast),transform var(--transition-fast),opacity var(--transition-fast)}
.menu-toggle.open span{background:#fff}
.menu-toggle.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* === HERO === */
.hero{min-height:100vh;padding:calc(var(--space-32) + var(--space-12)) 0 var(--space-24);position:relative;overflow:hidden;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg::before{content:'';position:absolute;top:-20%;right:-10%;width:60%;height:80%;background:radial-gradient(circle,rgba(205,146,24,.08) 0%,transparent 70%);filter:blur(60px)}
.hero-bg::after{content:'';position:absolute;bottom:-20%;left:-10%;width:50%;height:60%;background:radial-gradient(circle,rgba(0,80,126,.05) 0%,transparent 70%);filter:blur(60px)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr 1fr;gap:var(--space-16);align-items:center}
.hero-content .eyebrow{margin-bottom:var(--space-8)}
.hero-title{margin-bottom:var(--space-8);line-height:1.05}
.hero-title .line{display:block;overflow:hidden}
.hero-title .word{display:inline-block;transform:translateY(110%);animation:reveal 1.2s var(--ease-out) forwards}
.hero-title .word:nth-child(1){animation-delay:.1s}
.hero-title .word:nth-child(2){animation-delay:.2s}
.hero-title .word:nth-child(3){animation-delay:.3s}
.hero-title .word:nth-child(4){animation-delay:.4s}
.hero-title .word:nth-child(5){animation-delay:.5s}
@keyframes reveal{to{transform:translateY(0)}}
.hero-title .accent{color:var(--color-accent);font-style:italic;font-weight:400}
.hero-desc{font-size:var(--text-lg);color:var(--color-text-secondary);max-width:540px;margin-bottom:var(--space-10);font-weight:400;opacity:0;animation:fadeIn 1s var(--ease-out) .8s forwards}
@keyframes fadeIn{to{opacity:1}}
.hero-actions{display:flex;gap:var(--space-4);flex-wrap:wrap;opacity:0;animation:fadeIn 1s var(--ease-out) 1s forwards}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-4) var(--space-8);font-family:var(--font-body);font-weight:400;font-size:.875rem;letter-spacing:.05em;text-transform:uppercase;border-radius:var(--radius-sm);transition:all var(--transition-base);cursor:pointer;white-space:nowrap;position:relative;overflow:hidden}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-secondary{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}
.btn-secondary:hover{background:var(--color-primary);color:#fff}
.btn .arrow{transition:transform var(--transition-base)}
.btn:hover .arrow{transform:translateX(4px)}

.hero-visual{position:relative;aspect-ratio:4/5;opacity:0;animation:fadeIn 1.4s var(--ease-out) .6s forwards}
.hero-img-wrap{position:relative;width:100%;height:100%;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-lg)}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform 8s var(--ease-out)}
.hero-img-wrap:hover img{transform:scale(1.08)}
.hero-badge{position:absolute;bottom:-30px;left:-40px;background:#fff;padding:var(--space-6) var(--space-8);border-radius:var(--radius-md);box-shadow:var(--shadow-md);display:flex;align-items:center;gap:var(--space-4)}
.hero-badge-number{font-family:var(--font-display);font-size:3rem;font-weight:500;color:var(--color-accent);line-height:1}
.hero-badge-label{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-secondary);max-width:140px;line-height:1.4}

/* === MARQUEE === */
.marquee{padding:var(--space-12) 0;border-block:1px solid var(--color-border-light);overflow:hidden;background:var(--color-surface)}
.marquee-track{display:flex;gap:var(--space-16);animation:marquee 40s linear infinite;white-space:nowrap;width:max-content}
.marquee-item{font-family:var(--font-display);font-size:var(--text-2xl);font-style:italic;color:var(--color-primary);font-weight:400;display:flex;align-items:center;gap:var(--space-16)}
.marquee-item::after{content:'\2726';color:var(--color-accent);font-style:normal}
@keyframes marquee{to{transform:translateX(-50%)}}

/* === SECTION === */
section{padding:var(--section-gap) 0;position:relative}
.section-head{display:grid;grid-template-columns:1.5fr 1fr;gap:var(--space-12);margin-bottom:var(--space-16);align-items:start}
.section-head h2{margin-top:var(--space-3);line-height:1.0;letter-spacing:-0.025em;font-size:clamp(2rem,3.6vw,3.1rem)}
.section-head .lead{font-size:var(--text-base);color:var(--color-text-secondary);font-weight:400;line-height:1.75;max-width:520px;margin-top:var(--space-8)}

/* === ABOUT === */
.about{background:var(--color-bg)}
.about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:var(--space-16);align-items:center}
.about-visual{position:relative;aspect-ratio:1/1.15;width:100%;max-width:560px}
.about-img-main{width:78%;height:78%;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 24px 60px rgba(6,58,92,.18)}
.about-img-main img{width:100%;height:100%;object-fit:cover}
.about-img-sub{position:absolute;bottom:0;right:0;width:58%;height:58%;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 24px 60px rgba(205,146,24,.18);border:10px solid var(--color-bg)}
.about-img-sub img{width:100%;height:100%;object-fit:cover}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8);margin-top:var(--space-12);padding-top:var(--space-10);border-top:1px solid var(--color-border)}
.stat-num{font-family:var(--font-display);font-size:var(--text-4xl);font-weight:500;color:var(--color-accent);display:block;line-height:1}
.stat-label{font-size:.8rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.1em;margin-top:var(--space-2)}

/* === SERVICES === */
.services{background:var(--color-primary-dark);color:#fff;position:relative;overflow:hidden}
.services::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 60% at 100% 0%,rgba(205,146,24,.18) 0%,transparent 70%),radial-gradient(ellipse 40% 50% at 0% 100%,rgba(28,146,206,.08) 0%,transparent 70%);pointer-events:none}
.services h2,.services .eyebrow{color:#fff}
.services .eyebrow{color:var(--color-accent-light)}
.services .lead{color:rgba(255,255,255,.7)}
.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);position:relative;z-index:1}
.service-card{background:var(--color-primary-dark);padding:var(--space-12) var(--space-10);transition:transform var(--transition-base);cursor:pointer;position:relative;overflow:hidden;min-height:280px;display:flex;flex-direction:column}
.service-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.06);transition:opacity .9s var(--ease-out),transform 1.6s var(--ease-out);z-index:0;display:block;pointer-events:none}
.service-card::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,58,92,.78) 0%,rgba(6,58,92,.62) 50%,rgba(205,146,24,.45) 100%);opacity:0;transition:opacity .7s var(--ease-out);z-index:1;pointer-events:none}
.service-card>*:not(.service-bg){position:relative;z-index:2}
.service-card:hover .service-bg{opacity:.55;transform:scale(1)}
.service-card:hover::after{opacity:1}
.service-card:hover{transform:translateY(-4px)}
.service-num{font-family:var(--font-display);font-size:.9rem;color:var(--color-accent-light);letter-spacing:.1em;margin-bottom:var(--space-6);position:relative;z-index:1}
.service-icon{width:48px;height:48px;border:1px solid rgba(255,255,255,.2);border-radius:50%;display:grid;place-items:center;margin-bottom:var(--space-6);color:var(--color-accent-light);transition:all var(--transition-base);position:relative;z-index:1}
.service-card:hover .service-icon{background:var(--color-accent);border-color:var(--color-accent);color:#fff;transform:scale(1.1)}
.service-card h3{color:#fff;margin-bottom:var(--space-4);font-weight:500}
.service-card p{color:rgba(255,255,255,.65);font-size:var(--text-sm);line-height:1.7}
.service-card .read-more{margin-top:auto;padding-top:var(--space-6);color:var(--color-accent-light);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;display:inline-flex;align-items:center;gap:var(--space-2)}

/* === PROJECTS === */
.projects{background:var(--color-bg)}
/* === PROJECTS — Vertical Timeline === */
.projects-timeline{position:relative;padding:var(--space-4) 0;max-width:1100px;margin:0 auto}
.timeline-axis{position:absolute;left:50%;top:0;bottom:0;width:1px;background:linear-gradient(180deg,transparent 0%,var(--color-border) 4%,var(--color-border) 96%,transparent 100%);transform:translateX(-50%);pointer-events:none}

.timeline-item{position:relative;display:flex;align-items:center;width:100%;margin-bottom:var(--space-12);min-height:240px}
.timeline-item:last-child{margin-bottom:0}
.timeline-item.left{justify-content:flex-start}
.timeline-item.right{justify-content:flex-end}
.timeline-item.left .tl-card{margin-right:calc(50% + var(--space-10))}
.timeline-item.right .tl-card{margin-left:calc(50% + var(--space-10))}

.tl-dot{position:absolute;left:50%;top:50%;width:14px;height:14px;background:var(--color-accent);border-radius:50%;transform:translate(-50%,-50%);z-index:3;box-shadow:0 0 0 6px var(--color-bg),0 0 0 7px var(--color-border);transition:transform var(--transition-base),background var(--transition-base)}
.timeline-item:hover .tl-dot{transform:translate(-50%,-50%) scale(1.4);background:var(--color-accent-light)}

.tl-num{position:absolute;left:50%;top:50%;font-family:var(--font-display);font-size:clamp(1.6rem,2.5vw,2.2rem);font-style:italic;color:var(--color-accent);background:var(--color-bg);padding:var(--space-2) var(--space-3);z-index:2;font-weight:500;line-height:1;letter-spacing:-0.02em}
.timeline-item.left .tl-num{transform:translate(calc(-100% - 28px),-50%)}
.timeline-item.right .tl-num{transform:translate(28px,-50%)}

.tl-card{background:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 8px 30px rgba(6,58,92,.08);border:1px solid var(--color-border-light);transition:transform var(--transition-base),box-shadow var(--transition-base);width:calc(50% - var(--space-12));max-width:480px;display:flex;flex-direction:column;position:relative}
.tl-card:hover{transform:translateY(-4px);box-shadow:0 24px 60px rgba(6,58,92,.16);border-color:var(--color-border)}

.tl-card::before{content:'';position:absolute;top:50%;width:24px;height:1px;background:var(--color-border);z-index:1}
.timeline-item.left .tl-card::before{right:-24px}
.timeline-item.right .tl-card::before{left:-24px}

.tl-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--color-surface)}
.tl-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease-out)}
.tl-card:hover .tl-img img{transform:scale(1.06)}
.tl-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(6,58,92,.15) 100%);pointer-events:none}

.tl-tag{position:absolute;top:var(--space-4);left:var(--space-4);background:var(--color-accent);color:#fff;padding:5px 12px;border-radius:9999px;font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;z-index:2;box-shadow:0 4px 12px rgba(205,146,24,.4)}

.tl-body{padding:var(--space-6) var(--space-6) var(--space-6);display:flex;flex-direction:column;gap:var(--space-3)}
.tl-title{font-family:var(--font-display);font-size:var(--text-lg);font-weight:500;line-height:1.25;letter-spacing:-0.01em;color:var(--color-text);transition:color var(--transition-base)}
.tl-card:hover .tl-title{color:var(--color-accent-dark)}
.tl-desc{font-size:.88rem;color:var(--color-text-secondary);line-height:1.65;font-weight:400;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tl-meta{margin-top:var(--space-2);padding-top:var(--space-3);border-top:1px solid var(--color-border-light);display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}
.tl-meta-cat{display:flex;align-items:flex-start;gap:var(--space-3);flex:1;min-width:0;font-size:.78rem;line-height:1.55;color:var(--color-text-secondary);font-weight:500;letter-spacing:.01em;text-transform:none;font-family:var(--font-display);font-style:italic}
.tl-meta-cat::before{content:'';width:18px;height:1px;background:var(--color-accent);flex-shrink:0;margin-top:.7em}
.tl-meta-cat br+*,.tl-meta-cat br{display:block}
.tl-arrow{margin-top:.45em}
.tl-arrow{color:var(--color-accent);font-size:1rem;transition:transform var(--transition-base)}
.tl-card:hover .tl-arrow{transform:translateX(5px)}

@media(max-width:900px){
  .timeline-axis{left:24px}
  .timeline-item.left,.timeline-item.right{justify-content:flex-start}
  .timeline-item.left .tl-card,.timeline-item.right .tl-card{margin:0 0 0 60px;width:auto;max-width:none;flex:1}
  .tl-dot{left:24px}
  .tl-num{left:24px;background:transparent;padding:0;font-size:1.4rem}
  .timeline-item.left .tl-num,.timeline-item.right .tl-num{transform:translate(28px,-50%)}
  .timeline-item.left .tl-card::before{right:auto;left:-36px;width:36px}
  .timeline-item.right .tl-card::before{left:-36px;width:36px}
}
@media(max-width:768px){
  .timeline-item{margin-bottom:var(--space-8);min-height:auto}
  .timeline-axis{left:18px}
  .tl-dot{left:18px;width:10px;height:10px}
  .tl-num{left:18px;font-size:1.1rem;transform:translate(22px,-50%) !important}
  .timeline-item.left .tl-card,.timeline-item.right .tl-card{margin-left:46px}
  .timeline-item.left .tl-card::before,.timeline-item.right .tl-card::before{left:-28px;width:28px;top:32px}
  .tl-img{aspect-ratio:5/3}
  .tl-body{padding:var(--space-5)}
}

/* === CTA SPLIT === */
.cta-split{background:var(--color-surface);position:relative;overflow:hidden}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-16);align-items:center}
.cta-grid h2{margin-bottom:var(--space-6);font-style:italic;font-weight:400}
.cta-grid p{color:var(--color-text-secondary);margin-bottom:var(--space-8);font-size:var(--text-lg);font-weight:400}
.cta-img{aspect-ratio:5/4;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-lg)}
.cta-img img{width:100%;height:100%;object-fit:cover}

/* === CONTACT === */
.contact{background:var(--color-bg)}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:var(--space-16)}
.contact-info{padding-right:var(--space-8)}
.contact-info h2{margin-bottom:var(--space-6);font-weight:400}
.contact-info .lead{color:var(--color-text-secondary);margin-bottom:var(--space-10);font-size:var(--text-lg);font-weight:400}
.info-item{display:flex;gap:var(--space-5);padding:var(--space-5) 0;border-top:1px solid var(--color-border)}
.info-item:last-child{border-bottom:1px solid var(--color-border)}
.info-icon{flex-shrink:0;width:40px;height:40px;border:1px solid var(--color-border);border-radius:50%;display:grid;place-items:center;color:var(--color-accent)}
.info-item h5{font-family:var(--font-body);font-size:.7rem;text-transform:uppercase;letter-spacing:.15em;color:var(--color-text-muted);margin-bottom:var(--space-2);font-weight:500}
.info-item p,.info-item a{font-size:var(--text-base);color:var(--color-text);line-height:1.6;font-weight:400}
.info-item a:hover{color:var(--color-accent)}

.contact-form-wrap{background:#fff;padding:var(--space-12) var(--space-10);border-radius:var(--radius-md);box-shadow:var(--shadow-md);border:1px solid var(--color-border-light)}
.contact-form-wrap h3{font-weight:500;margin-bottom:var(--space-2)}
.contact-form-wrap .form-sub{color:var(--color-text-secondary);font-size:var(--text-sm);margin-bottom:var(--space-8)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-5)}
.form-row{margin-bottom:var(--space-5)}
.form-row.full{grid-column:1/-1}
label{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-secondary);margin-bottom:var(--space-2);font-weight:500}
label .req{color:var(--color-accent)}
input,select,textarea{width:100%;padding:var(--space-4) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-body);font-size:.95rem;font-weight:400;color:var(--color-text);background:var(--color-bg);transition:all var(--transition-fast)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-accent);background:#fff;box-shadow:0 0 0 4px rgba(205,146,24,.08)}
textarea{resize:vertical;min-height:120px;line-height:1.6}
select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238B9AAA' stroke-width='2'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:var(--space-10)}
.form-submit{margin-top:var(--space-8);width:100%}
.form-msg{margin-top:var(--space-5);padding:var(--space-4);border-radius:var(--radius-sm);font-size:.875rem;text-align:center;display:none}
.form-msg.success{background:rgba(16,185,129,.1);color:#047857;border:1px solid rgba(16,185,129,.3);display:block}
.form-msg.error{background:rgba(239,68,68,.1);color:#b91c1c;border:1px solid rgba(239,68,68,.3);display:block}
.form-msg.loading{background:var(--color-surface);color:var(--color-text-secondary);display:block}

/* === FOOTER === */
footer{background:var(--color-primary-dark);color:rgba(255,255,255,.7);padding:var(--space-24) 0 var(--space-8);position:relative;overflow:hidden}
footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--color-accent) 50%,transparent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:var(--space-12);margin-bottom:var(--space-16)}
.footer-brand .logo{color:#fff;margin-bottom:var(--space-5)}
.footer-brand p{font-size:.875rem;line-height:1.7;max-width:340px;color:rgba(255,255,255,.55)}
.footer-col h5{font-family:var(--font-body);color:#fff;font-size:.75rem;text-transform:uppercase;letter-spacing:.15em;margin-bottom:var(--space-6);font-weight:500}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:var(--space-3);font-size:.875rem;color:rgba(255,255,255,.55)}
.footer-col a:hover{color:var(--color-accent-light)}
.footer-bottom{padding-top:var(--space-8);border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--space-4);font-size:.75rem;color:rgba(255,255,255,.4)}
.socials{display:flex;gap:var(--space-3)}
.social-link{width:36px;height:36px;border:1px solid rgba(255,255,255,.15);border-radius:50%;display:grid;place-items:center;transition:all var(--transition-fast);color:rgba(255,255,255,.7)}
.social-link:hover{background:var(--color-accent);border-color:var(--color-accent);color:#fff;transform:translateY(-2px)}

/* === REVEAL ANIMATIONS === */
.reveal{opacity:0;transform:translateY(40px);transition:all 1s var(--ease-out)}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal-stagger>*{opacity:0;transform:translateY(30px);transition:all .8s var(--ease-out)}
.reveal-stagger.in>*{opacity:1;transform:translateY(0)}
.reveal-stagger.in>*:nth-child(1){transition-delay:.05s}
.reveal-stagger.in>*:nth-child(2){transition-delay:.15s}
.reveal-stagger.in>*:nth-child(3){transition-delay:.25s}
.reveal-stagger.in>*:nth-child(4){transition-delay:.35s}
.reveal-stagger.in>*:nth-child(5){transition-delay:.45s}
.reveal-stagger.in>*:nth-child(6){transition-delay:.55s}
.reveal-stagger.in>*:nth-child(7){transition-delay:.05s}
.reveal-stagger.in>*:nth-child(8){transition-delay:.15s}
.reveal-stagger.in>*:nth-child(9){transition-delay:.25s}
.reveal-stagger.in>*:nth-child(10){transition-delay:.35s}
.reveal-stagger.in>*:nth-child(11){transition-delay:.45s}
.reveal-stagger.in>*:nth-child(12){transition-delay:.55s}
.reveal-stagger.in>*:nth-child(13){transition-delay:.15s}

/* === RESPONSIVE === */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:var(--space-12)}
  .hero-visual{max-width:480px;margin:0 auto;width:100%}
  .section-head{grid-template-columns:1fr;gap:var(--space-6)}
  .about-grid,.cta-grid,.contact-grid{grid-template-columns:1fr;gap:var(--space-12)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-10)}
  .contact-info{padding-right:0}
}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .menu-toggle{display:flex}
  .nav-links.mobile-open{
    display:flex;position:fixed;inset:0;width:100vw;height:100vh;height:100dvh;
    background:linear-gradient(160deg,var(--color-primary-dark) 0%,var(--color-primary) 60%,var(--color-primary-dark) 100%);
    flex-direction:column;justify-content:center;align-items:center;
    gap:var(--space-5);z-index:2000;padding:var(--space-24) var(--space-8) var(--space-16);
    margin:0;list-style:none;overflow-y:auto;opacity:0;transform:translateY(-16px);
    animation:menuSlide .45s var(--ease-out) forwards
  }
  .nav-links.mobile-open::before{
    content:'Menu';position:absolute;top:max(var(--space-8),env(safe-area-inset-top));left:50%;
    transform:translateX(-50%);font-family:var(--font-body);font-size:.7rem;
    letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.5);font-weight:500
  }
  .nav-links.mobile-open::after{
    content:'';position:absolute;left:50%;bottom:var(--space-12);transform:translateX(-50%);
    width:48px;height:1px;background:rgba(255,255,255,.2)
  }
  .nav-links.mobile-open li{list-style:none;margin:0;width:100%;text-align:center}
  .nav-links.mobile-open a{
    font-family:var(--font-display);font-size:clamp(2.2rem,9vw,3.2rem);font-weight:500;
    color:#fff;padding:var(--space-3) var(--space-6);position:relative;display:inline-block;
    letter-spacing:-0.02em;line-height:1.1;
    transition:color .25s var(--ease-out),transform .25s var(--ease-out)
  }
  .nav-links.mobile-open a::after{
    content:'';position:absolute;left:var(--space-6);right:var(--space-6);bottom:8px;
    height:1px;background:var(--color-accent-light);transform:scaleX(0);transform-origin:center;
    transition:transform .35s var(--ease-out)
  }
  .nav-links.mobile-open a:hover,.nav-links.mobile-open a:active{color:var(--color-accent-light)}
  .nav-links.mobile-open a:hover::after,.nav-links.mobile-open a:active::after{transform:scaleX(1)}
  @keyframes menuSlide{to{opacity:1;transform:translateY(0)}}
  body.menu-open{overflow:hidden;position:fixed;width:100%}
  /* When menu is open, hide nav bg so it doesn't conflict with overlay */
  body.menu-open .nav,body.menu-open .nav.scrolled{background:transparent !important;box-shadow:none !important;backdrop-filter:none !important}
  body.menu-open .logo img{filter:brightness(0) invert(1)}
  body.menu-open .lang-switch{border-color:rgba(255,255,255,.3);color:#fff;background:transparent}
  .hero{padding:calc(var(--space-32) + var(--space-4)) 0 var(--space-16)}
  .hero-badge{position:relative;bottom:auto;left:auto;margin-top:var(--space-6);width:fit-content}
  .services-grid{grid-template-columns:1fr;gap:1px;background:transparent;border:none}
  .service-card[style*="span 2"]{grid-column:auto !important}
  .form-grid{grid-template-columns:1fr}
  .contact-form-wrap{padding:var(--space-8) var(--space-6)}
  .about-stats{grid-template-columns:repeat(3,1fr);gap:var(--space-4)}
  .stat-num{font-size:var(--text-3xl)}
  .footer-grid{grid-template-columns:1fr;gap:var(--space-8)}
  .footer-bottom{flex-direction:column;text-align:center}
  .marquee-item{font-size:var(--text-xl);gap:var(--space-10)}
  .marquee-track{gap:var(--space-10)}
  .about-img-main{width:90%;height:75%}
  .about-img-sub{width:50%;height:45%}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* ============================================
   SERVICE DETAIL PAGE
   ============================================ */
.sd-hero{position:relative;padding:calc(var(--space-32) + var(--space-12)) 0 var(--space-20);overflow:hidden;color:#fff;background:var(--color-primary-dark);min-height:78vh;display:flex;align-items:flex-end}
.sd-hero-bg{position:absolute;inset:0;z-index:0}
.sd-hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38;transform:scale(1.06);animation:sdZoom 12s var(--ease-out) forwards}
@keyframes sdZoom{to{transform:scale(1)}}
.sd-hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,58,92,.45) 0%,rgba(6,58,92,.75) 60%,var(--color-primary-dark) 100%)}
.sd-hero-bg::before{content:'';position:absolute;top:-30%;right:-10%;width:55%;height:80%;background:radial-gradient(circle,rgba(205,146,24,.22) 0%,transparent 70%);filter:blur(80px);z-index:1}
.sd-hero-inner{position:relative;z-index:2;width:100%}
.sd-breadcrumb{display:flex;align-items:center;gap:var(--space-3);font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:var(--space-8);font-weight:500}
.sd-breadcrumb a{color:rgba(255,255,255,.6);transition:color var(--transition-fast)}
.sd-breadcrumb a:hover{color:var(--color-accent-light)}
.sd-breadcrumb .sep{color:rgba(255,255,255,.3);font-size:.7rem}
.sd-breadcrumb .current{color:#fff}
.sd-hero .eyebrow{color:var(--color-accent-light);margin-bottom:var(--space-6)}
.sd-hero .eyebrow::before{background:var(--color-accent-light)}
.sd-hero-title{font-size:clamp(2.4rem,5.5vw,4.6rem);font-weight:500;line-height:1.05;letter-spacing:-0.035em;margin-bottom:var(--space-6);max-width:920px;color:#fff}
.sd-hero-title .italic{color:var(--color-accent-light);font-weight:400}
.sd-hero-desc{font-size:var(--text-lg);max-width:680px;color:rgba(255,255,255,.78);line-height:1.65;font-weight:400}
.sd-hero-num{position:absolute;top:calc(var(--space-32) + var(--space-2));right:var(--container-padding);font-family:var(--font-display);font-style:italic;font-size:clamp(6rem,14vw,12rem);font-weight:400;color:rgba(255,255,255,.06);line-height:.85;letter-spacing:-0.04em;pointer-events:none;z-index:1}

.sd-solutions{background:var(--color-bg);position:relative;padding:var(--section-gap) 0}
.sd-solutions-head{display:grid;grid-template-columns:1fr 1.1fr;gap:var(--space-12);margin-bottom:var(--space-16);align-items:end}
.sd-solutions-head h2{margin-top:var(--space-4);font-size:clamp(1.9rem,3.2vw,2.8rem);line-height:1.1;letter-spacing:-0.025em}
.sd-solutions-head .lead{font-size:var(--text-base);color:var(--color-text-secondary);line-height:1.75;max-width:540px}

.sd-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-6)}
.sd-item{background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--space-10) var(--space-8);position:relative;transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base);display:flex;flex-direction:column;gap:var(--space-4);overflow:hidden}
.sd-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-accent);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--ease-out)}
.sd-item:hover{transform:translateY(-6px);box-shadow:0 24px 60px rgba(6,58,92,.10);border-color:var(--color-border)}
.sd-item:hover::before{transform:scaleY(1);transform-origin:top}
.sd-item-num{font-family:var(--font-display);font-style:italic;font-size:var(--text-3xl);color:var(--color-accent);font-weight:500;line-height:1;letter-spacing:-0.02em;margin-bottom:var(--space-2)}
.sd-item-title{font-family:var(--font-display);font-size:var(--text-xl);font-weight:500;line-height:1.25;letter-spacing:-0.01em;color:var(--color-text);transition:color var(--transition-base)}
.sd-item:hover .sd-item-title{color:var(--color-primary)}
.sd-item-desc{font-size:.9rem;color:var(--color-text-secondary);line-height:1.7;font-weight:400}
.sd-item-tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-3);padding-top:var(--space-4);border-top:1px solid var(--color-border-light)}
.sd-item-tags span{font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted);padding:4px 10px;background:var(--color-surface);border-radius:9999px;font-weight:500}
.sd-item-tags span:empty{display:none}

.sd-cta{background:var(--color-surface);position:relative;overflow:hidden;padding:var(--section-gap) 0}
.sd-cta::before{content:'';position:absolute;top:-30%;right:-10%;width:50%;height:80%;background:radial-gradient(circle,rgba(205,146,24,.12) 0%,transparent 70%);filter:blur(80px)}
.sd-cta-inner{position:relative;display:grid;grid-template-columns:1.35fr 1fr;gap:var(--space-12);align-items:stretch}
.sd-cta .eyebrow{margin-bottom:var(--space-5)}
.sd-cta h2{font-size:clamp(2rem,3.5vw,3rem);line-height:1.05;margin-bottom:var(--space-6);letter-spacing:-0.025em}
.sd-cta p{color:var(--color-text-secondary);font-size:var(--text-lg);font-weight:400;margin-bottom:var(--space-8);max-width:540px}
.sd-cta-actions{display:flex;flex-wrap:wrap;gap:var(--space-4)}
.sd-cta-side{display:flex;flex-direction:column;gap:var(--space-4);justify-content:space-between;height:100%}
.sd-cta-contact{background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--space-5) var(--space-6);display:flex;align-items:center;gap:var(--space-5);transition:all var(--transition-base);flex:1;min-height:0}
.sd-cta-contact:hover{transform:translateX(4px);border-color:var(--color-accent);box-shadow:var(--shadow-md)}
.sd-cta-contact-icon{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--color-primary);color:#fff;display:grid;place-items:center}
.sd-cta-contact-info h5{font-family:var(--font-body);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-1);font-weight:500}
.sd-cta-contact-info{min-width:0;flex:1}
.sd-cta-contact-info p,.sd-cta-contact-info a{font-family:var(--font-display);font-size:var(--text-base);color:var(--color-text);font-weight:500;letter-spacing:-0.01em;font-style:normal;word-break:break-word;line-height:1.3}

.sd-other{background:var(--color-bg);padding:var(--section-gap) 0;border-top:1px solid var(--color-border-light)}
.sd-other-head{text-align:center;margin-bottom:var(--space-12)}
.sd-other-head .eyebrow{justify-content:center;display:inline-flex;margin-bottom:var(--space-4)}
.sd-other-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);letter-spacing:-0.02em}
.sd-other-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-5)}
.sd-other-card{position:relative;border-radius:var(--radius-md);overflow:hidden;aspect-ratio:3/4;display:block;transition:transform var(--transition-base)}
.sd-other-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease-out)}
.sd-other-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,58,92,.0) 30%,rgba(6,58,92,.95) 100%);z-index:1}
.sd-other-card:hover{transform:translateY(-4px)}
.sd-other-card:hover img{transform:scale(1.08)}
.sd-other-body{position:absolute;left:var(--space-5);right:var(--space-5);bottom:var(--space-5);z-index:2;color:#fff}
.sd-other-num{font-family:var(--font-display);font-style:italic;font-size:.85rem;color:var(--color-accent-light);letter-spacing:.08em;margin-bottom:var(--space-2);display:block}
.sd-other-card h4{font-family:var(--font-display);font-size:var(--text-lg);color:#fff;font-weight:500;line-height:1.25;letter-spacing:-0.01em}
.sd-other-arrow{position:absolute;top:var(--space-4);right:var(--space-4);width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);display:grid;place-items:center;color:#fff;z-index:2;transition:all var(--transition-base);font-size:1rem}
.sd-other-card:hover .sd-other-arrow{background:var(--color-accent);transform:rotate(-45deg)}

@media(max-width:1024px){
  .sd-hero{min-height:66vh;padding-top:calc(var(--space-32) + var(--space-4))}
  .sd-solutions-head{grid-template-columns:1fr;gap:var(--space-6);align-items:start}
  .sd-grid{grid-template-columns:1fr}
  .sd-cta-inner{grid-template-columns:1fr;gap:var(--space-10);align-items:start}
  .sd-cta-side{height:auto;justify-content:flex-start;gap:var(--space-4)}
  .sd-cta-contact{flex:0 0 auto}
  .sd-other-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .sd-hero{min-height:60vh}
  .sd-hero-num{font-size:6rem;top:auto;bottom:var(--space-6);right:var(--space-6)}
  .sd-item{padding:var(--space-8) var(--space-6)}
  .sd-other-grid{grid-template-columns:1fr 1fr;gap:var(--space-4)}
  .sd-other-card{aspect-ratio:1/1.1}
}

/* "Tìm hiểu thêm" link hover enhancement (after read-more became <a>) */
.service-card a.read-more{transition:color var(--transition-fast),letter-spacing var(--transition-fast)}
.service-card:hover a.read-more,.service-card a.read-more:hover{color:#fff;letter-spacing:.14em}

/* === DARK HERO NAV (service detail pages) === */
body.dark-hero .nav:not(.scrolled) .nav-links a{color:rgba(255,255,255,.88)}
body.dark-hero .nav:not(.scrolled) .nav-links a:hover{color:var(--color-accent-light)}
body.dark-hero .nav:not(.scrolled) .nav-links a::after{background:var(--color-accent-light)}
body.dark-hero .nav:not(.scrolled) .lang-switch{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.08)}
body.dark-hero .nav:not(.scrolled) .lang-switch:hover{border-color:var(--color-accent-light);color:var(--color-accent-light)}
body.dark-hero .nav:not(.scrolled) .logo img{filter:brightness(0) invert(1);opacity:.95}
body.dark-hero .nav:not(.scrolled) .logo:hover img{opacity:1}
body.dark-hero .nav:not(.scrolled) .menu-toggle span{background:#fff}
body.dark-hero .nav:not(.scrolled) .nav-cta{background:var(--color-accent);color:#fff}
body.dark-hero .nav:not(.scrolled) .nav-cta:hover{background:var(--color-accent-light)}


/* === External reference link row inside project timeline card === */
.tl-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--space-4);padding-bottom:var(--space-1)}
.tl-link{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-body);font-style:normal;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--color-primary);background:var(--color-surface);padding:5px 11px;border-radius:9999px;transition:all var(--transition-fast);line-height:1;border:1px solid var(--color-border-light);text-decoration:none;white-space:nowrap}
.tl-link .arr{font-size:.85em;opacity:.65;transition:transform var(--transition-fast)}
.tl-link:hover{background:var(--color-accent);color:#fff;transform:translateY(-1px);border-color:var(--color-accent)}
.tl-link:hover .arr{transform:translate(2px,-2px);opacity:1}

/* === 2-button CTA pairs collapse into single row on mobile === */
@media(max-width:768px){
  .hero-actions,
  .sd-cta-actions{flex-wrap:nowrap;gap:var(--space-3);width:100%}
  .hero-actions .btn,
  .sd-cta-actions .btn{flex:1;padding:var(--space-4) var(--space-3);font-size:.7rem;letter-spacing:.04em;min-width:0;gap:var(--space-2);text-align:center;white-space:normal;line-height:1.2}
  .hero-actions .btn .arrow,
  .sd-cta-actions .btn .arrow{display:none}
}
@media(max-width:400px){
  .hero-actions .btn,
  .sd-cta-actions .btn{font-size:.62rem;padding:var(--space-3) var(--space-2);letter-spacing:.02em}
}